diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-08 10:05:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-08 10:05:57 -0700 |
| commit | 4fd6c6bf83cb16321e9902b00e2af79054f4e0d6 (patch) | |
| tree | 7153f611af0125336ac0ec22c5cb430fe520edcc | |
| parent | c5f347579a661c9506e794315f0798b75ef71d35 (diff) | |
| parent | 84b9414babdc303dde1d3f44cd2a54dffb67ab97 (diff) | |
Merge branch 'for-linus' of git://android.kernel.org/kernel/tegra
* 'for-linus' of git://android.kernel.org/kernel/tegra:
[ARM] tegra: add MAINTAINERS entry
[ARM] tegra: harmony: Add harmony board file
[ARM] tegra: add pinmux support
[ARM] tegra: add GPIO support
[ARM] tegra: Add timer support
[ARM] tegra: SMP support
[ARM] tegra: Add clock support
[ARM] tegra: Add IRQ support
[ARM] tegra: initial tegra support
42 files changed, 6061 insertions, 5 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index d4242846e7a..54d94ca9d6e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5565,6 +5565,15 @@ W: http://tcp-lp-mod.sourceforge.net/ S: Maintained F: net/ipv4/tcp_lp.c +TEGRA SUPPORT +M: Colin Cross <ccross@android.com> +M: Erik Gilling <konkers@android.com> +M: Olof Johansson <olof@lixom.net> +L: linux-tegra@vger.kernel.org +T: git git://android.git.kernel.org/kernel/tegra.git +S: Supported +F: arch/arm/mach-tegra + TEHUTI ETHERNET DRIVER M: Alexander Indenbaum <baum@tehutinetworks.net> M: Andy Gospodarek <andy@greyhouse.net> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 9e10882c81d..232f0c75825 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -558,6 +558,18 @@ config ARCH_NUC93X Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a low-power and high performance MPEG-4/JPEG multimedia controller chip. +config ARCH_TEGRA + bool "NVIDIA Tegra" + select GENERIC_TIME + select GENERIC_CLOCKEVENTS + select GENERIC_GPIO + select HAVE_CLK + select COMMON_CLKDEV + select ARCH_HAS_BARRIERS if CACHE_L2X0 + help + This enables support for NVIDIA Tegra based systems (Tegra APX, + Tegra 6xx and Tegra 2 series). + config ARCH_PNX4008 bool "Philips Nexperia PNX4008 Mobile" select CPU_ARM926T @@ -907,6 +919,8 @@ source "arch/arm/mach-shmobile/Kconfig" source "arch/arm/plat-stmp3xxx/Kconfig" +source "arch/arm/mach-tegra/Kconfig" + source "arch/arm/mach-u300/Kconfig" source "arch/arm/mach-ux500/Kconfig" @@ -1094,10 +1108,11 @@ config SMP bool "Symmetric Multi-Processing (EXPERIMENTAL)" depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\ MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\ - ARCH_U8500 || ARCH_VEXPRESS_CA9X4) + ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_TEGRA) depends on GENERIC_CLOCKEVENTS select USE_GENERIC_SMP_HELPERS - select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4) + select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || \ + ARCH_VEXPRESS_CA9X4 || ARCH_TEGRA) help This enables support for systems with more than one CPU. If you have a system with only one CPU, like most personal computers, say N. If @@ -1167,9 +1182,10 @@ config LOCAL_TIMERS bool "Use local timer interrupts" depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \ REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \ - ARCH_U8500 || ARCH_VEXPRESS_CA9X4) + ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_TEGRA) default y - select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_VEXPRESS || ARCH_OMAP4 || ARCH_U8500) + select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_VEXPRESS || ARCH_OMAP4 || \\ + ARCH_U8500 || ARCH_TEGRA help Enable support for local timers on SMP platforms, rather then the legacy IPI broadcast method. Local timers allows the system diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 63d998e8c67..a8d4dca9da3 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -179,6 +179,7 @@ machine-$(CONFIG_ARCH_SHARK) := shark machine-$(CONFIG_ARCH_SHMOBILE) := shmobile machine-$(CONFIG_ARCH_STMP378X) := stmp378x machine-$(CONFIG_ARCH_STMP37XX) := stmp37xx +machine-$(CONFIG_ARCH_TEGRA) := tegra machine-$(CONFIG_ARCH_U300) := u300 machine-$(CONFIG_ARCH_U8500) := ux500 machine-$(CONFIG_ARCH_VERSATILE) := versatile diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig new file mode 100644 index 00000000000..a57713c1954 --- /dev/null +++ b/arch/arm/mach-tegra/Kconfig @@ -0,0 +1,50 @@ +if ARCH_TEGRA + +comment "NVIDIA Tegra options" + +choice + prompt "Select Tegra processor family for target system" + +config ARCH_TEGRA_2x_SOC + bool "Tegra 2 family" + select CPU_V7 + select ARM_GIC + select ARCH_REQUIRE_GPIOLIB + help + Support for NVIDIA Tegra AP20 and T20 processors, based on the + ARM CortexA9MP CPU and the ARM PL310 L2 cache controller + +endchoice + +comment "Tegra board type" + +config MACH_HARMONY + bool "Harmony board" + help + Support for nVidia Harmony development platform + +choice + prompt "Low-level debug console UART" + default TEGRA_DEBUG_UART_NONE + +config TEGRA_DEBUG_UART_NONE + bool "None" + +config TEGRA_DEBUG_UARTA + bool "UART-A" + +config TEGRA_DEBUG_UARTB + bool "UART-B" + +config TEGRA_DEBUG_UARTC + bool "UART-C" + +config TEGRA_DEBUG_UARTD + bool "UART-D" + +config TEGRA_DEBUG_UARTE + bool "UART-E" + +endchoice + +endif diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile new file mode 100644 index 00000000000..51e9370eed9 --- /dev/null +++ b/arch/arm/mach-tegra/Makefile @@ -0,0 +1,14 @@ +obj-y += common.o +obj-y += io.o +obj-y += irq.o +obj-y += clock.o +obj-y += timer.o +obj-y += gpio.o +obj-y += pinmux.o +obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += clock.o +obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_clocks.o +obj-$(CONFIG_SMP) += platsmp.o localtimer.o headsmp.o +obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o + +obj-${CONFIG_MACH_HARMONY} += board-harmony.o +obj-${CONFIG_MACH_HARMONY} += board-harmony-pinmux.o diff --git a/arch/arm/mach-tegra/Makefile.boot b/arch/arm/mach-tegra/Makefile.boot new file mode 100644 index 00000000000..db52d61a738 --- /dev/null +++ b/arch/arm/mach-tegra/Makefile.boot @@ -0,0 +1,3 @@ +zreladdr-$(CONFIG_ARCH_TEGRA_2x_SOC) := 0x00008000 +params_phys-$(CONFIG_ARCH_TEGRA_2x_SOC) := 0x00000100 +initrd_phys-$(CONFIG_ARCH_TEGRA_2x_SOC) := 0x00800000 diff --git a/arch/arm/mach-tegra/board-harmony-pinmux.c b/arch/arm/mach-tegra/board-harmony-pinmux.c new file mode 100644 index 00000000000..50b15d500ca --- /dev/null +++ b/arch/arm/mach-tegra/board-harmony-pinmux.c @@ -0,0 +1,144 @@ +/* + * arch/arm/mach-tegra/board-harmony-pinmux.c + * + * Copyright (C) 2010 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> +#include <mach/pinmux.h> + +#include "board-harmony.h" + +static struct tegra_pingroup_config harmony_pinmux[] = { + {TEGRA_PINGROUP_ATA, TEGRA_MUX_IDE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_ATB, TEGRA_MUX_SDIO4, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_ATC, TEGRA_MUX_NAND, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_ATD, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_ATE, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_CDEV1, TEGRA_MUX_OSC, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_CDEV2, TEGRA_MUX_PLLP_OUT4, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_CRTP, TEGRA_MUX_CRT, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_CSUS, TEGRA_MUX_VI_SENSOR_CLK, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_DAP1, TEGRA_MUX_DAP1, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_DAP2, TEGRA_MUX_DAP2, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_DAP3, TEGRA_MUX_DAP3, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_DAP4, TEGRA_MUX_DAP4, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_DDC, TEGRA_MUX_I2C2, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_DTA, TEGRA_MUX_SDIO2, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_DTB, TEGRA_MUX_RSVD1, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_DTC, TEGRA_MUX_RSVD1, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_DTD, TEGRA_MUX_SDIO2, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_DTE, TEGRA_MUX_RSVD1, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_DTF, TEGRA_MUX_I2C3, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_GMA, TEGRA_MUX_SDIO4, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_GMB, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_GMC, TEGRA_MUX_UARTD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_GMD, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_GME, TEGRA_MUX_SDIO4, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_GPU, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_GPU7, TEGRA_MUX_RTCK, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_GPV, TEGRA_MUX_PCIE, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_HDINT, TEGRA_MUX_HDMI, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_I2CP, TEGRA_MUX_I2C, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_IRRX, TEGRA_MUX_UARTA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_IRTX, TEGRA_MUX_UARTA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_KBCA, TEGRA_MUX_KBC, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_KBCB, TEGRA_MUX_KBC, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_KBCC, TEGRA_MUX_KBC, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_KBCD, TEGRA_MUX_KBC, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_KBCE, TEGRA_MUX_KBC, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_KBCF, TEGRA_MUX_KBC, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LCSN, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_LD0, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD1, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD10, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD11, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD12, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD13, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD14, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD15, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD16, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD17, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD2, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD3, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD4, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD5, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD6, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD7, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD8, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LD9, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LDC, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_LDI, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LHP0, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LHP1, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LHP2, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LHS, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LM0, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LM1, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_LPP, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LPW0, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LPW1, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_LPW2, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LSC0, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LSC1, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_LSCK, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_LSDA, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_LSDI, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_LSPI, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LVP0, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_LVP1, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_LVS, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_OWC, TEGRA_MUX_RSVD2, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_PMC, TEGRA_MUX_PWR_ON, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_PTA, TEGRA_MUX_HDMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_RM, TEGRA_MUX_I2C, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_SDB, TEGRA_MUX_PWM, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SDC, TEGRA_MUX_PWM, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_SDD, TEGRA_MUX_PWM, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SDIO1, TEGRA_MUX_SDIO1, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SLXA, TEGRA_MUX_PCIE, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SLXC, TEGRA_MUX_SPDIF, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SLXD, TEGRA_MUX_SPDIF, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SLXK, TEGRA_MUX_PCIE, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SPDI, TEGRA_MUX_RSVD2, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SPDO, TEGRA_MUX_RSVD2, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SPIA, TEGRA_MUX_GMI, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SPIB, TEGRA_MUX_GMI, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SPIC, TEGRA_MUX_GMI, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_SPID, TEGRA_MUX_SPI1, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SPIE, TEGRA_MUX_SPI1, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SPIF, TEGRA_MUX_SPI1, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SPIG, TEGRA_MUX_SPI2_ALT, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_SPIH, TEGRA_MUX_SPI2_ALT, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_UAA, TEGRA_MUX_ULPI, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_UAB, TEGRA_MUX_ULPI, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_UAC, TEGRA_MUX_RSVD2, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_UAD, TEGRA_MUX_IRDA, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_UCA, TEGRA_MUX_UARTC, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_UCB, TEGRA_MUX_UARTC, TEGRA_PUPD_PULL_UP, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_UDA, TEGRA_MUX_ULPI, TEGRA_PUPD_NORMAL, TEGRA_TRI_TRISTATE}, + {TEGRA_PINGROUP_CK32, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_DDRC, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_PMCA, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_PMCB, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_PMCC, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_PMCD, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_PMCE, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_XM2C, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, + {TEGRA_PINGROUP_XM2D, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL}, +}; + +void harmony_pinmux_init(void) +{ + tegra_pinmux_config_table(harmony_pinmux, ARRAY_SIZE(harmony_pinmux)); +} diff --git a/arch/arm/mach-tegra/board-harmony.c b/arch/arm/mach-tegra/board-harmony.c new file mode 100644 index 00000000000..05e78dd9b50 --- /dev/null +++ b/arch/arm/mach-tegra/board-harmony.c @@ -0,0 +1,127 @@ +/* + * arch/arm/mach-tegra/board-harmony.c + * + * Copyright (C) 2010 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/serial_8250.h> +#include <linux/clk.h> +#include <linux/dma-mapping.h> +#include <linux/pda_power.h> +#include <linux/io.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> +#include <asm/setup.h> + +#include <mach/iomap.h> +#include <mach/irqs.h> + +#include "board.h" +#include "board-harmony.h" +#include "clock.h" + +/* NVidia bootloader tags */ +#define ATAG_NVIDIA 0x41000801 + +#define ATAG_NVIDIA_RM 0x1 +#define ATAG_NVIDIA_DISPLAY 0x2 +#define ATAG_NVIDIA_FRAMEBUFFER 0x3 +#define ATAG_NVIDIA_CHIPSHMOO 0x4 +#define ATAG_NVIDIA_CHIPSHMOOPHYS 0x5 +#define ATAG_NVIDIA_PRESERVED_MEM_0 0x10000 +#define ATAG_NVIDIA_PRESERVED_MEM_N 2 +#define ATAG_NVIDIA_FORCE_32 0x7fffffff + +struct tag_tegra { + __u32 bootarg_key; + __u32 bootarg_len; + char bootarg[1]; +}; + +static int __init parse_tag_nvidia(const struct tag *tag) +{ + + return 0; +} +__tagtable(ATAG_NVIDIA, parse_tag_nvidia); + +static struct plat_serial8250_port debug_uart_platform_data[] = { + { + .membase = IO_ADDRESS(TEGRA_UARTD_BASE), + .mapbase = TEGRA_UARTD_BASE, + .irq = INT_UARTD, + .flags = UPF_BOOT_AUTOCONF, + .iotype = UPIO_MEM, + .regshift = 2, + .uartclk = 216000000, + }, { + .flags = 0 + } +}; + +static struct platform_device debug_uart = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = debug_uart_platform_data, + }, +}; + +static struct platform_device *harmony_devices[] __initdata = { + &debug_uart, +}; + +static void __init tegra_harmony_fixup(struct machine_desc *desc, + struct tag *tags, char **cmdline, struct meminfo *mi) +{ + mi->nr_banks = 2; + mi->bank[0].start = PHYS_OFFSET; + mi->bank[0].node = PHYS_TO_NID(PHYS_OFFSET); + mi->bank[0].size = 448 * SZ_1M; + mi->bank[1].start = SZ_512M; + mi->bank[1].node = PHYS_TO_NID(SZ_512M); + mi->bank[1].size = SZ_512M; +} + +static __initdata struct tegra_clk_init_table harmony_clk_init_table[] = { + /* name parent rate enabled */ + { "uartd", "pll_p", 216000000, true }, + { NULL, NULL, 0, 0}, +}; + +static void __init tegra_harmony_init(void) +{ + tegra_common_init(); + + tegra_clk_init_from_table(harmony_clk_init_table); + + harmony_pinmux_init(); + + platform_add_devices(harmony_devices, ARRAY_SIZE(harmony_devices)); +} + +MACHINE_START(HARMONY, "harmony") + .boot_params = 0x00000100, + .phys_io = IO_APB_PHYS, + .io_pg_offst = ((IO_APB_VIRT) >> 18) & 0xfffc, + .fixup = tegra_harmony_fixup, + .init_irq = tegra_init_irq, + .init_machine = tegra_harmony_init, + .map_io = tegra_map_common_io, + .timer = &tegra_timer, +MACHINE_END diff --git a/arch/arm/mach-tegra/board-harmony.h b/arch/arm/mach-tegra/board-harmony.h new file mode 100644 index 00000000000..09ca7755dd5 --- /dev/null +++ b/arch/arm/mach-tegra/board-harmony.h @@ -0,0 +1,22 @@ +/* + * arch/arm/mach-tegra/board-harmony.h + * + * Copyright (C) 2010 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef _MACH_TEGRA_BOARD_HARMONY_H +#define _MACH_TEGRA_BOARD_HARMONY_H + +void harmony_pinmux_init(void); + +#endif diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h new file mode 100644 index 00000000000..3d06354136f --- /dev/null +++ b/arch/arm/mach-tegra/board.h @@ -0,0 +1,32 @@ +/* + * arch/arm/mach-tegra/board.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_BOARD_H +#define __MACH_TEGRA_BOARD_H + +#include <linux/types.h> + +void __init tegra_common_init(void); +void __init tegra_map_common_io(void); +void __init tegra_init_irq(void); +void __init tegra_init_clock(void); + +extern struct sys_timer tegra_timer; +#endif diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c new file mode 100644 index 00000000000..03ad578349b --- /dev/null +++ b/arch/arm/mach-tegra/clock.c @@ -0,0 +1,488 @@ +/* + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> +#include <linux/clk.h> +#include <linux/list.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/debugfs.h> +#include <linux/slab.h> +#include <linux/seq_file.h> +#include <asm/clkdev.h> + +#include "clock.h" + +static LIST_HEAD(clocks); + +static DEFINE_SPINLOCK(clock_lock); + +struct clk *tegra_get_clock_by_name(const char *name) +{ + struct clk *c; + struct clk *ret = NULL; + unsigned long flags; + spin_lock_irqsave(&clock_lock, flags); + list_for_each_entry(c, &clocks, node) { + if (strcmp(c->name, name) == 0) { + ret = c; + break; + } + } + spin_unlock_irqrestore(&clock_lock, flags); + return ret; +} + +int clk_reparent(struct clk *c, struct clk *parent) +{ + pr_debug("%s: %s\n", __func__, c->name); + if (c->refcnt && c->parent) + clk_disable_locked(c->parent); + c->parent = parent; + if (c->refcnt && c->parent) + clk_enable_locked(c->parent); + list_del(&c->sibling); + list_add_tail(&c->sibling, &parent->children); + return 0; +} + +static void propagate_rate(struct clk *c) +{ + struct clk *clkp; + pr_debug("%s: %s\n", __func__, c->name); + list_for_each_entry(clkp, &c->children, sibling) { + pr_debug(" %s\n", clkp->name); + if (clkp->ops->recalculate_rate) + clkp->ops->recalculate_rate(clkp); + propagate_rate(clkp); + } +} + +void clk_init(struct clk *c) +{ + unsigned long flags; + + spin_lock_irqsave(&clock_lock, flags); + + INIT_LIST_HEAD(&c->children); + INIT_LIST_HEAD(&c->sibling); + + if (c->ops && c->ops->init) + c->ops->init(c); + + list_add(&c->node, &clocks); + + if (c->parent) + list_add_tail(&c->sibling, &c->parent->children); + + spin_unlock_irqrestore(&clock_lock, flags); +} + +int clk_enable_locked(struct clk *c) +{ + int ret; + pr_debug("%s: %s\n", __func__, c->name); + if (c->refcnt == 0) { + if (c->parent) { + ret = clk_enable_locked(c->parent); + if (ret) + return ret; + } + + if (c->ops && c->ops->enable) { + ret = c->ops->enable(c); + if (ret) { + if (c->parent) + clk_disable_locked(c->parent); + return ret; + } + c->state = ON; +#ifdef CONFIG_DEBUG_FS + c->set = 1; +#endif + } + } + c->refcnt++; + + return 0; +} + +int clk_enable(struct clk *c) +{ + int ret; + unsigned long flags; + spin_lock_irqsave(&clock_lock, flags); + ret = clk_enable_locked(c); + spin_unlock_irqrestore(&clock_lock, flags); + return ret; +} +EXPORT_SYMBOL(clk_enable); + +void clk_disable_locked(struct clk *c) +{ + pr_debug("%s: %s\n", __func__, c->name); + if (c->refcnt == 0) { + WARN(1, "Attempting to disable clock %s with refcnt 0", c->name); + return; + } + if (c->refcnt == 1) { + if (c->ops && c->ops->disable) + c->ops->disable(c); + + if (c->parent) + clk_disable_locked(c->parent); + + c->state = OFF; + } + c->refcnt--; +} + +void clk_disable(struct clk *c) +{ + unsigned long flags; + spin_lock_irqsave(&clock_lock, flags); + clk_disable_locked(c); + spin_unlock_irqrestore(&clock_lock, flags); +} +EXPORT_SYMBOL(clk_disable); + +int clk_set_parent_locked(struct clk *c, struct clk *parent) +{ + int ret; + + pr_debug("%s: %s\n", __func__, c->name); + + if (!c->ops || !c->ops->set_parent) + return -ENOSYS; + + ret = c->ops->set_parent(c, parent); + + if (ret) + return ret; + + propagate_rate(c); + + return 0; +} + +int clk_set_parent(struct clk *c, struct clk *parent) +{ + int ret; + unsigned long flags; + spin_lock_irqsave(&clock_lock, flags); + ret = clk_set_parent_locked(c, parent); + spin_unlock_irqrestore(&clock_lock, flags); + return ret; +} +EXPORT_SYMBOL(clk_set_parent); + +struct clk *clk_get_parent(struct clk *c) +{ + return c->parent; +} +EXPORT_SYMBOL(clk_get_parent); + +int clk_set_rate(struct clk *c, unsigned long rate) +{ + int ret = 0; + unsigned long flags; + + spin_lock_irqsave(&clock_lock, flags); + + pr_debug("%s: %s\n", __func__, c->name); + + if (c->ops && c->ops->set_rate) + ret = c->ops->set_rate(c, rate); + else + ret = -ENOSYS; + + propagate_rate(c); + + spin_unlock_irqrestore(&clock_lock, flags); + + return ret; +} +EXPORT_SYMBOL(clk_set_rate); + +unsigned long clk_get_rate(struct clk *c) +{ + unsigned long flags; + unsigned long ret; + + spin_lock_irqsave(&clock_lock, flags); + + pr_debug("%s: %s\n", __func__, c->name); + + ret = c->rate; + + spin_unlock_irqrestore(&clock_lock, flags); + return ret; +} +EXPORT_SYMBOL(clk_get_rate); + +static int tegra_clk_init_one_from_table(struct tegra_clk_init_table *table) +{ + struct clk *c; + struct clk *p; + + int ret = 0; + + c = tegra_get_clock_by_name(table->name); + + if (!c) { + pr_warning("Unable to initialize clock %s\n", + table->name); + return -ENODEV; + } + + if (table->parent) { + p = tegra_get_clock_by_name(table->parent); + if (!p) { + pr_warning("Unable to find parent %s of clock %s\n", + table->parent, table->name); + return -ENODEV; + } + + if (c->parent != p) { + ret = clk_set_parent(c, p); + if (ret) { + pr_warning("Unable to set parent %s of clock %s: %d\n", + table->parent, table->name, ret); + return -EINVAL; + } + } + } + + if (table->rate && table->rate != clk_get_rate(c)) { + ret = clk_set_rate(c, table->rate); + if (ret) { + pr_warning("Unable to set clock %s to rate %lu: %d\n", + table->name, table->rate, ret); + return -EINVAL; + } + } + + if (table->enabled) { + ret = clk_enable(c); + if (ret) { + pr_warning("Unable to enable clock %s: %d\n", + table->name, ret); + return -EINVAL; + } + } + + return 0; +} + +void tegra_clk_init_from_table(struct tegra_clk_init_table *table) +{ + for (; table->name; table++) + tegra_clk_init_one_from_table(table); +} +EXPORT_SYMBOL(tegra_clk_init_from_table); + +void tegra_periph_reset_deassert(struct clk *c) +{ + tegra2_periph_reset_deassert(c); +} +EXPORT_SYMBOL(tegra_periph_reset_deassert); + +void tegra_periph_reset_assert(struct clk *c) +{ + tegra2_periph_reset_assert(c); +} +EXPORT_SYMBOL(tegra_periph_reset_assert); + +int __init tegra_init_clock(void) +{ + tegra2_init_clocks(); + + return 0; +} + +#ifdef CONFIG_DEBUG_FS +static struct dentry *clk_debugfs_root; + + +static void clock_tree_show_one(struct seq_file *s, struct clk *c, int level) +{ + struct clk *child; + struct clk *safe; + const char *state = "uninit"; + char div[5] = {0}; + + if (c->state == ON) + state = "on"; + else if (c->state == OFF) + state = "off"; + + if (c->mul != 0 && c->div != 0) { + BUG_ON(c->mul > 2); + if (c->mul > c->div) + snprintf(div, sizeof(div), "x%d", c->mul / c->div); + else + snprintf(div, sizeof(div), "%d%s", c->div / c->mul, + (c->div % c->mul) ? ".5" : ""); + } + + seq_printf(s, "%*s%-*s %-6s %-3d %-5s %-10lu\n", + level * 3 + 1, c->set ? "" : "*", + 30 - level * 3, c->name, + state, c->refcnt, div, c->rate); + list_for_each_entry_safe(child, safe, &c->children, sibling) { + clock_tree_show_one(s, child, level + 1); + } +} + +static int clock_tree_show(struct seq_file *s, void *data) +{ + struct clk *c; + unsigned long flags; + seq_printf(s, " clock state ref div rate \n"); + seq_printf(s, "-----------------------------------------------------------\n"); + spin_lock_irqsave(&clock_lock, flags); + list_for_each_entry(c, &clocks, node) + if (c->parent == NULL) + clock_tree_show_one(s, c, 0); + spin_unlock_irqrestore(&clock_lock, flags); + return 0; +} + +static int clock_tree_open(struct inode *inode, struct file *file) +{ + return single_open(file, clock_tree_show, inode->i_private); +} + +static const struct file_operations clock_tree_fops = { + .open = clock_tree_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int possible_parents_show(struct seq_file *s, void *data) +{ + struct clk *c = s->private; + int i; + + for (i = 0; c->inputs[i].input; i++) { + char *first = (i == 0) ? "" : " "; + seq_printf(s, "%s%s", first, c->inputs[i].input->name); + } + seq_printf(s, "\n"); + return 0; +} + +static int possible_parents_open(struct inode *inode, struct file *file) +{ + return single_open(file, possible_parents_show, inode->i_private); +} + +static const struct file_operations possible_parents_fops = { + .open = possible_parents_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int clk_debugfs_register_one(struct clk *c) +{ + struct dentry *d, *child, *child_tmp; + + d = debugfs_create_dir(c->name, clk_debugfs_root); + if (!d) + return -ENOMEM; + c->dent = d; + + d = debugfs_create_u8("refcnt", S_IRUGO, c->dent, (u8 *)&c->refcnt); + if (!d) + goto err_out; + + d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate); + if (!d) + goto err_out; + + d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags); + if (!d) + goto err_out; + + if (c->inputs) { + d = debugfs_create_file("possible_parents", S_IRUGO, c->dent, + c, &possible_parents_fops); + if (!d) + goto err_out; + } + + return 0; + +err_out: + d = c->dent; + list_for_each_entry_safe(child, child_tmp, &d->d_subdirs, d_u.d_child) + debugfs_remove(child); + debugfs_remove(c->dent); + return -ENOMEM; +} + +static int clk_debugfs_register(struct clk *c) +{ + int err; + struct clk *pa = c->parent; + + if (pa && !pa->dent) { + err = clk_debugfs_register(pa); + if (err) + return err; + } + + if (!c->dent) { + err = clk_debugfs_register_one(c); + if (err) + return err; + } + return 0; +} + +static int __init clk_debugfs_init(void) +{ + struct clk *c; + struct dentry *d; + int err = -ENOMEM; + + d = debugfs_create_dir("clock", NULL); + if (!d) + return -ENOMEM; + clk_debugfs_root = d; + + d = debugfs_create_file("clock_tree", S_IRUGO, clk_debugfs_root, NULL, + &clock_tree_fops); + if (!d) + goto err_out; + + list_for_each_entry(c, &clocks, node) { + err = clk_debugfs_register(c); + if (err) + goto err_out; + } + return 0; +err_out: + debugfs_remove_recursive(clk_debugfs_root); + return err; +} + +late_initcall(clk_debugfs_init); +#endif diff --git a/arch/arm/mach-tegra/clock.h b/arch/arm/mach-tegra/clock.h new file mode 100644 index 00000000000..af7c70e2a3b --- /dev/null +++ b/arch/arm/mach-tegra/clock.h @@ -0,0 +1,147 @@ +/* + * arch/arm/mach-tegra/include/mach/clock.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_CLOCK_H +#define __MACH_TEGRA_CLOCK_H + +#include <linux/list.h> +#include <asm/clkdev.h> + +#define DIV_BUS (1 << 0) +#define DIV_U71 (1 << 1) +#define DIV_U71_FIXED (1 << 2) +#define DIV_2 (1 << 3) +#define PLL_FIXED (1 << 4) +#define PLL_HAS_CPCON (1 << 5) +#define MUX (1 << 6) +#define PLLD (1 << 7) +#define PERIPH_NO_RESET (1 << 8) +#define PERIPH_NO_ENB (1 << 9) +#define PERIPH_EMC_ENB (1 << 10) +#define PERIPH_MANUAL_RESET (1 << 11) +#define PLL_ALT_MISC_REG (1 << 12) +#define ENABLE_ON_INIT (1 << 28) + +struct clk; + +struct clk_mux_sel { + struct clk *input; + u32 value; +}; + +struct clk_pll_table { + unsigned long input_rate; + unsigned long output_rate; + u16 n; + u16 m; + u8 p; + u8 cpcon; +}; + +struct clk_ops { + void (*init)(struct clk *); + int (*enable)(struct clk *); + void (*disable)(struct clk *); + void (*recalc)(struct clk *); + int (*set_parent)(struct clk *, struct clk *); + int (*set_rate)(struct clk *, unsigned long); + unsigned long (*get_rate)(struct clk *); + long (*round_rate)(struct clk *, unsigned long); + unsigned long (*recalculate_rate)(struct clk *); +}; + +enum clk_state { + UNINITIALIZED = 0, + ON, + OFF, +}; + +struct clk { + /* node for master clocks list */ + struct list_head node; + struct list_head children; /* list of children */ + struct list_head sibling; /* node for children */ +#ifdef CONFIG_DEBUG_FS + struct dentry *dent; + struct dentry *parent_dent; +#endif + struct clk_ops *ops; + struct clk *parent; + struct clk_lookup lookup; + unsigned long rate; + u32 flags; + u32 refcnt; + const char *name; + u32 reg; + u32 reg_shift; + unsigned int clk_num; + enum clk_state state; +#ifdef CONFIG_DEBUG_FS + bool set; +#endif + + /* PLL */ + unsigned long input_min; + unsigned long input_max; + unsigned long cf_min; + unsigned long cf_max; + unsigned long vco_min; + unsigned long vco_max; + u32 m; + u32 n; + u32 p; + u32 cpcon; + const struct clk_pll_table *pll_table; + + /* DIV */ + u32 div; + u32 mul; + + /* MUX */ + const struct clk_mux_sel *inputs; + u32 sel; + u32 reg_mask; +}; + + +struct clk_duplicate { + const char *name; + struct clk_lookup lookup; +}; + +struct tegra_clk_init_table { + const char *name; + const char *parent; + unsigned long rate; + bool enabled; +}; + +void tegra2_init_clocks(void); +void tegra2_periph_reset_deassert(struct clk *c); +void tegra2_periph_reset_assert(struct clk *c); +void clk_init(struct clk *clk); +struct clk *tegra_get_clock_by_name(const char *name); +unsigned long clk_measure_input_freq(void); +void clk_disable_locked(struct clk *c); +int clk_enable_locked(struct clk *c); +int clk_set_parent_locked(struct clk *c, struct clk *parent); +int clk_reparent(struct clk *c, struct clk *parent); +void tegra_clk_init_from_table(struct tegra_clk_init_table *table); + +#endif diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c new file mode 100644 index 00000000000..039a514b61e --- /dev/null +++ b/arch/arm/mach-tegra/common.c @@ -0,0 +1,61 @@ +/* + * arch/arm/mach-tegra/board-harmony.c + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@android.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/init.h> +#include <linux/io.h> + +#include <asm/hardware/cache-l2x0.h> + +#include <mach/iomap.h> + +#include "board.h" +#include "clock.h" + +static __initdata struct tegra_clk_init_table common_clk_init_table[] = { + /* name parent rate enabled */ + { "clk_m", NULL, 0, true }, + { "pll_p", "clk_m", 216000000, true }, + { "pll_p_out1", "pll_p", 28800000, true }, + { "pll_p_out2", "pll_p", 48000000, true }, + { "pll_p_out3", "pll_p", 72000000, true }, + { "pll_p_out4", "pll_p", 108000000, true }, + { "sys", "pll_p_out4", 108000000, true }, + { "hclk", "sys", 108000000, true }, + { "pclk", "hclk", 54000000, true }, + { NULL, NULL, 0, 0}, +}; + +void __init tegra_init_cache(void) +{ +#ifdef CONFIG_CACHE_L2X0 + void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000; + + writel(0x331, p + L2X0_TAG_LATENCY_CTRL); + writel(0x441, p + L2X0_DATA_LATENCY_CTRL); + + l2x0_init(p, 0x6C080001, 0x8200c3fe); +#endif +} + +void __init tegra_common_init(void) +{ + tegra_init_clock(); + tegra_clk_init_from_table(common_clk_init_table); + tegra_init_cache(); +} diff --git a/arch/arm/mach-tegra/gpio-names.h b/arch/arm/mach-tegra/gpio-names.h new file mode 100644 index 00000000000..f28220a641b --- /dev/null +++ b/arch/arm/mach-tegra/gpio-names.h @@ -0,0 +1,247 @@ +/* + * arch/arm/mach-tegra/include/mach/gpio-names.h + * + * Copyright (c) 2010 Google, Inc + * + * Author: + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __MACH_TEGRA_GPIO_NAMES_H +#define __MACH_TEGRA_GPIO_NAMES_H + +#define TEGRA_GPIO_PA0 0 +#define TEGRA_GPIO_PA1 1 +#define TEGRA_GPIO_PA2 2 +#define TEGRA_GPIO_PA3 3 +#define TEGRA_GPIO_PA4 4 +#define TEGRA_GPIO_PA5 5 +#define TEGRA_GPIO_PA6 6 +#define TEGRA_GPIO_PA7 7 +#define TEGRA_GPIO_PB0 8 +#define TEGRA_GPIO_PB1 9 +#define TEGRA_GPIO_PB2 10 +#define TEGRA_GPIO_PB3 11 +#define TEGRA_GPIO_PB4 12 +#define TEGRA_GPIO_PB5 13 +#define TEGRA_GPIO_PB6 14 +#define TEGRA_GPIO_PB7 15 +#define TEGRA_GPIO_PC0 16 +#define TEGRA_GPIO_PC1 17 +#define TEGRA_GPIO_PC2 18 +#define TEGRA_GPIO_PC3 19 +#define TEGRA_GPIO_PC4 20 +#define TEGRA_GPIO_PC5 21 +#define TEGRA_GPIO_PC6 22 +#define TEGRA_GPIO_PC7 23 +#define TEGRA_GPIO_PD0 24 +#define TEGRA_GPIO_PD1 25 +#define TEGRA_GPIO_PD2 26 +#define TEGRA_GPIO_PD3 27 +#define TEGRA_GPIO_PD4 28 +#define TEGRA_GPIO_PD5 29 +#define TEGRA_GPIO_PD6 30 +#define TEGRA_GPIO_PD7 31 +#define TEGRA_GPIO_PE0 32 +#define TEGRA_GPIO_PE1 33 +#define TEGRA_GPIO_PE2 34 +#define TEGRA_GPIO_PE3 35 +#define TEGRA_GPIO_PE4 36 +#define TEGRA_GPIO_PE5 37 +#define TEGRA_GPIO_PE6 38 +#define TEGRA_GPIO_PE7 39 +#define TEGRA_GPIO_PF0 40 +#define TEGRA_GPIO_PF1 41 +#define TEGRA_GPIO_PF2 42 +#define TEGRA_GPIO_PF3 43 +#define TEGRA_GPIO_PF4 44 +#define TEGRA_GPIO_PF5 45 +#define TEGRA_GPIO_PF6 46 +#define TEGRA_GPIO_PF7 47 +#define TEGRA_GPIO_PG0 48 +#define TEGRA_GPIO_PG1 49 +#define TEGRA_GPIO_PG2 50 +#define TEGRA_GPIO_PG3 51 +#define TEGRA_GPIO_PG4 52 +#define TEGRA_GPIO_PG5 53 +#define TEGRA_GPIO_PG6 54 +#define TEGRA_GPIO_PG7 55 +#define TEGRA_GPIO_PH0 56 +#define TEGRA_GPIO_PH1 57 +#define TEGRA_GPIO_PH2 58 +#define TEGRA_GPIO_PH3 59 +#define TEGRA_GPIO_PH4 60 +#define TEGRA_GPIO_PH5 61 +#define TEGRA_GPIO_PH6 62 +#define TEGRA_GPIO_PH7 63 +#define TEGRA_GPIO_PI0 64 +#define TEGRA_GPIO_PI1 65 +#define TEGRA_GPIO_PI2 66 +#define TEGRA_GPIO_PI3 67 +#define TEGRA_GPIO_PI4 68 +#define TEGRA_GPIO_PI5 69 +#define TEGRA_GPIO_PI6 70 +#define TEGRA_GPIO_PI7 71 +#define TEGRA_GPIO_PJ0 72 +#define TEGRA_GPIO_PJ1 73 +#define TEGRA_GPIO_PJ2 74 +#define TEGRA_GPIO_PJ3 75 +#define TEGRA_GPIO_PJ4 76 +#define TEGRA_GPIO_PJ5 77 +#define TEGRA_GPIO_PJ6 78 +#define TEGRA_GPIO_PJ7 79 +#define TEGRA_GPIO_PK0 80 +#define TEGRA_GPIO_PK1 81 +#define TEGRA_GPIO_PK2 82 +#define TEGRA_GPIO_PK3 83 +#define TEGRA_GPIO_PK4 84 +#define TEGRA_GPIO_PK5 85 +#define TEGRA_GPIO_PK6 86 +#define TEGRA_GPIO_PK7 87 +#define TEGRA_GPIO_PL0 88 +#define TEGRA_GPIO_PL1 89 +#define TEGRA_GPIO_PL2 90 +#define TEGRA_GPIO_PL3 91 +#define TEGRA_GPIO_PL4 92 +#define TEGRA_GPIO_PL5 93 +#define TEGRA_GPIO_PL6 94 +#define TEGRA_GPIO_PL7 95 +#define TEGRA_GPIO_PM0 96 +#define TEGRA_GPIO_PM1 97 +#define TEGRA_GPIO_PM2 98 +#define TEGRA_GPIO_PM3 99 +#define TEGRA_GPIO_PM4 100 +#define TEGRA_GPIO_PM5 101 +#define TEGRA_GPIO_PM6 102 +#define TEGRA_GPIO_PM7 103 +#define TEGRA_GPIO_PN0 104 +#define TEGRA_GPIO_PN1 105 +#define TEGRA_GPIO_PN2 106 +#define TEGRA_GPIO_PN3 107 +#define TEGRA_GPIO_PN4 108 +#define TEGRA_GPIO_PN5 109 +#define TEGRA_GPIO_PN6 110 +#define TEGRA_GPIO_PN7 111 +#define TEGRA_GPIO_PO0 112 +#define TEGRA_GPIO_PO1 113 +#define TEGRA_GPIO_PO2 114 +#define TEGRA_GPIO_PO3 115 +#define TEGRA_GPIO_PO4 116 +#define TEGRA_GPIO_PO5 117 +#define TEGRA_GPIO_PO6 118 +#define TEGRA_GPIO_PO7 119 +#define TEGRA_GPIO_PP0 120 +#define TEGRA_GPIO_PP1 121 +#define TEGRA_GPIO_PP2 122 +#define TEGRA_GPIO_PP3 123 +#define TEGRA_GPIO_PP4 124 +#define TEGRA_GPIO_PP5 125 +#define TEGRA_GPIO_PP6 126 +#define TEGRA_GPIO_PP7 127 +#define TEGRA_GPIO_PQ0 128 +#define TEGRA_GPIO_PQ1 129 +#define TEGRA_GPIO_PQ2 130 +#define TEGRA_GPIO_PQ3 131 +#define TEGRA_GPIO_PQ4 132 +#define TEGRA_GPIO_PQ5 133 +#define TEGRA_GPIO_PQ6 134 +#define TEGRA_GPIO_PQ7 135 +#define TEGRA_GPIO_PR0 136 +#define TEGRA_GPIO_PR1 137 +#define TEGRA_GPIO_PR2 138 +#define TEGRA_GPIO_PR3 139 +#define TEGRA_GPIO_PR4 140 +#define TEGRA_GPIO_PR5 141 +#define TEGRA_GPIO_PR6 142 +#define TEGRA_GPIO_PR7 143 +#define TEGRA_GPIO_PS0 144 +#define TEGRA_GPIO_PS1 145 +#define TEGRA_GPIO_PS2 146 +#define TEGRA_GPIO_PS3 147 +#define TEGRA_GPIO_PS4 148 +#define TEGRA_GPIO_PS5 149 +#define TEGRA_GPIO_PS6 150 +#define TEGRA_GPIO_PS7 151 +#define TEGRA_GPIO_PT0 152 +#define TEGRA_GPIO_PT1 153 +#define TEGRA_GPIO_PT2 154 +#define TEGRA_GPIO_PT3 155 +#define TEGRA_GPIO_PT4 156 +#define TEGRA_GPIO_PT5 157 +#define TEGRA_GPIO_PT6 158 +#define TEGRA_GPIO_PT7 159 +#define TEGRA_GPIO_PU0 160 +#define TEGRA_GPIO_PU1 161 +#define TEGRA_GPIO_PU2 162 +#define TEGRA_GPIO_PU3 163 +#define TEGRA_GPIO_PU4 164 +#define TEGRA_GPIO_PU5 165 +#define TEGRA_GPIO_PU6 166 +#define TEGRA_GPIO_PU7 167 +#define TEGRA_GPIO_PV0 168 +#define TEGRA_GPIO_PV1 169 +#define TEGRA_GPIO_PV2 170 +#define TEGRA_GPIO_PV3 171 +#define TEGRA_GPIO_PV4 172 +#define TEGRA_GPIO_PV5 173 +#define TEGRA_GPIO_PV6 174 +#define TEGRA_GPIO_PV7 175 +#define TEGRA_GPIO_PW0 176 +#define TEGRA_GPIO_PW1 177 +#define TEGRA_GPIO_PW2 178 +#define TEGRA_GPIO_PW3 179 +#define TEGRA_GPIO_PW4 180 +#define TEGRA_GPIO_PW5 181 +#define TEGRA_GPIO_PW6 182 +#define TEGRA_GPIO_PW7 183 +#define TEGRA_GPIO_PX0 184 +#define TEGRA_GPIO_PX1 185 +#define TEGRA_GPIO_PX2 186 +#define TEGRA_GPIO_PX3 187 +#define TEGRA_GPIO_PX4 188 +#define TEGRA_GPIO_PX5 189 +#define TEGRA_GPIO_PX6 190 +#define TEGRA_GPIO_PX7 191 +#define TEGRA_GPIO_PY0 192 +#define TEGRA_GPIO_PY1 193 +#define TEGRA_GPIO_PY2 194 +#define TEGRA_GPIO_PY3 195 +#define TEGRA_GPIO_PY4 196 +#define TEGRA_GPIO_PY5 197 +#define TEGRA_GPIO_PY6 198 +#define TEGRA_GPIO_PY7 199 +#define TEGRA_GPIO_PZ0 200 +#define TEGRA_GPIO_PZ1 201 +#define TEGRA_GPIO_PZ2 202 +#define TEGRA_GPIO_PZ3 203 +#define TEGRA_GPIO_PZ4 204 +#define TEGRA_GPIO_PZ5 205 +#define TEGRA_GPIO_PZ6 206 +#define TEGRA_GPIO_PZ7 207 +#define TEGRA_GPIO_PAA0 208 +#define TEGRA_GPIO_PAA1 209 +#define TEGRA_GPIO_PAA2 210 +#define TEGRA_GPIO_PAA3 211 +#define TEGRA_GPIO_PAA4 212 +#define TEGRA_GPIO_PAA5 213 +#define TEGRA_GPIO_PAA6 214 +#define TEGRA_GPIO_PAA7 215 +#define TEGRA_GPIO_PBB0 216 +#define TEGRA_GPIO_PBB1 217 +#define TEGRA_GPIO_PBB2 218 +#define TEGRA_GPIO_PBB3 219 +#define TEGRA_GPIO_PBB4 220 +#define TEGRA_GPIO_PBB5 221 +#define TEGRA_GPIO_PBB6 222 +#define TEGRA_GPIO_PBB7 223 + +#endif diff --git a/arch/arm/mach-tegra/gpio.c b/arch/arm/mach-tegra/gpio.c new file mode 100644 index 00000000000..fe78fba25f3 --- /dev/null +++ b/arch/arm/mach-tegra/gpio.c @@ -0,0 +1,348 @@ +/* + * arch/arm/mach-tegra/gpio.c + * + * Copyright (c) 2010 Google, Inc + * + * Author: + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/init.h> +#include <linux/irq.h> + +#include <linux/io.h> +#include <linux/gpio.h> + +#include <mach/iomap.h> + +#define GPIO_BANK(x) ((x) >> 5) +#define GPIO_PORT(x) (((x) >> 3) & 0x3) +#define GPIO_BIT(x) ((x) & 0x7) + +#define GPIO_REG(x) (IO_TO_VIRT(TEGRA_GPIO_BASE) + \ + GPIO_BANK(x) * 0x80 + \ + GPIO_PORT(x) * 4) + +#define GPIO_CNF(x) (GPIO_REG(x) + 0x00) +#define GPIO_OE(x) (GPIO_REG(x) + 0x10) +#define GPIO_OUT(x) (GPIO_REG(x) + 0X20) +#define GPIO_IN(x) (GPIO_REG(x) + 0x30) +#define GPIO_INT_STA(x) (GPIO_REG(x) + 0x40) +#define GPIO_INT_ENB(x) (GPIO_REG(x) + 0x50) +#define GPIO_INT_LVL(x) (GPIO_REG(x) + 0x60) +#define GPIO_INT_CLR(x) (GPIO_REG(x) + 0x70) + +#define GPIO_MSK_CNF(x) (GPIO_REG(x) + 0x800) +#define GPIO_MSK_OE(x) (GPIO_REG(x) + 0x810) +#define GPIO_MSK_OUT(x) (GPIO_REG(x) + 0X820) +#define GPIO_MSK_INT_STA(x) (GPIO_REG(x) + 0x840) +#define GPIO_MSK_INT_ENB(x) (GPIO_REG(x) + 0x850) +#define GPIO_MSK_INT_LVL(x) (GPIO_REG(x) + 0x860) + +#define GPIO_INT_LVL_MASK 0x010101 +#define GPIO_INT_LVL_EDGE_RISING 0x000101 +#define GPIO_INT_LVL_EDGE_FALLING 0x000100 +#define GPIO_INT_LVL_EDGE_BOTH 0x010100 +#define GPIO_INT_LVL_LEVEL_HIGH 0x000001 +#define GPIO_INT_LVL_LEVEL_LOW 0x000000 + +struct tegra_gpio_bank { + int bank; + int irq; + spinlock_t lvl_lock[4]; +}; + + +static struct tegra_gpio_bank tegra_gpio_banks[] = { + {.bank = 0, .irq = INT_GPIO1}, + {.bank = 1, .irq = INT_GPIO2}, + {.bank = 2, .irq = INT_GPIO3}, + {.bank = 3, .irq = INT_GPIO4}, + {.bank = 4, .irq = INT_GPIO5}, + {.bank = 5, .irq = INT_GPIO6}, + {.bank = 6, .irq = INT_GPIO7}, +}; + +static int tegra_gpio_compose(int bank, int port, int bit) +{ + return (bank << 5) | ((port & 0x3) << 3) | (bit & 0x7); +} + +static void tegra_gpio_mask_write(u32 reg, int gpio, int value) +{ + u32 val; + + val = 0x100 << GPIO_BIT(gpio); + if (value) + val |= 1 << GPIO_BIT(gpio); + __raw_writel(val, reg); +} + +void tegra_gpio_enable(int gpio) +{ + tegra_gpio_mask_write(GPIO_MSK_CNF(gpio), gpio, 1); +} + +void tegra_gpio_disable(int gpio) +{ + tegra_gpio_mask_write(GPIO_MSK_CNF(gpio), gpio, 0); +} + +static void tegra_gpio_set(struct gpio_chip *chip, unsigned offset, int value) +{ + tegra_gpio_mask_write(GPIO_MSK_OUT(offset), offset, value); +} + +static int tegra_gpio_get(struct gpio_chip *chip, unsigned offset) +{ + return (__raw_readl(GPIO_IN(offset)) >> GPIO_BIT(offset)) & 0x1; +} + +static int tegra_gpio_direction_input(struct gpio_chip *chip, unsigned offset) +{ + tegra_gpio_mask_write(GPIO_MSK_OE(offset), offset, 0); + return 0; +} + +static int tegra_gpio_direction_output(struct gpio_chip *chip, unsigned offset, + int value) +{ + tegra_gpio_set(chip, offset, value); + tegra_gpio_mask_write(GPIO_MSK_OE(offset), offset, 1); + return 0; +} + + + +static struct gpio_chip tegra_gpio_chip = { + .label = "tegra-gpio", + .direction_input = tegra_gpio_direction_input, + .get = tegra_gpio_get, + .direction_output = tegra_gpio_direction_output, + .set = tegra_gpio_set, + .base = 0, + .ngpio = ARCH_NR_GPIOS, +}; + +static void tegra_gpio_irq_ack(unsigned int irq) +{ + int gpio = irq - INT_GPIO_BASE; + + __raw_writel(1 << GPIO_BIT(gpio), GPIO_INT_CLR(gpio)); +} + +static void tegra_gpio_irq_mask(unsigned int irq) +{ + int gpio = irq - INT_GPIO_BASE; + + tegra_gpio_mask_write(GPIO_MSK_INT_ENB(gpio), gpio, 0); +} + +static void tegra_gpio_irq_unmask(unsigned int irq) +{ + int gpio = irq - INT_GPIO_BASE; + + tegra_gpio_mask_write(GPIO_MSK_INT_ENB(gpio), gpio, 1); +} + +static int tegra_gpio_irq_set_type(unsigned int irq, unsigned int type) +{ + int gpio = irq - INT_GPIO_BASE; + struct tegra_gpio_bank *bank = get_irq_chip_data(irq); + int port = GPIO_PORT(gpio); + int lvl_type; + int val; + unsigned long flags; + + switch (type & IRQ_TYPE_SENSE_MASK) { + case IRQ_TYPE_EDGE_RISING: + lvl_type = GPIO_INT_LVL_EDGE_RISING; + break; + + case IRQ_TYPE_EDGE_FALLING: + lvl_type = GPIO_INT_LVL_EDGE_FALLING; + break; + + case IRQ_TYPE_EDGE_BOTH: + lvl_type = GPIO_INT_LVL_EDGE_BOTH; + break; + + case IRQ_TYPE_LEVEL_HIGH: + lvl_type = GPIO_INT_LVL_LEVEL_HIGH; + break; + + case IRQ_TYPE_LEVEL_LOW: + lvl_type = GPIO_INT_LVL_LEVEL_LOW; + break; + + default: + return -EINVAL; + } + + spin_lock_irqsave(&bank->lvl_lock[port], flags); + + val = __raw_readl(GPIO_INT_LVL(gpio)); + val &= ~(GPIO_INT_LVL_MASK << GPIO_BIT(gpio)); + val |= lvl_type << GPIO_BIT(gpio); + __raw_writel(val, GPIO_INT_LVL(gpio)); + + spin_unlock_irqrestore(&bank->lvl_lock[port], flags); + + if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH)) + __set_irq_handler_unlocked(irq, handle_level_irq); + else if (type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING)) + __set_irq_handler_unlocked(irq, handle_edge_irq); + + return 0; +} + +static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) +{ + struct tegra_gpio_bank *bank; + int port; + int pin; + int unmasked = 0; + + desc->chip->ack(irq); + + bank = get_irq_data(irq); + + for (port = 0; port < 4; port++) { + int gpio = tegra_gpio_compose(bank->bank, port, 0); + unsigned long sta = __raw_readl(GPIO_INT_STA(gpio)) & + __raw_readl(GPIO_INT_ENB(gpio)); + u32 lvl = __raw_readl(GPIO_INT_LVL(gpio)); + + for_each_set_bit(pin, &sta, 8) { + __raw_writel(1 << pin, GPIO_INT_CLR(gpio)); + + /* if gpio is edge triggered, clear condition + * before executing the hander so that we don't + * miss edges + */ + if (lvl & (0x100 << pin)) { + unmasked = 1; + desc->chip->unmask(irq); + } + + generic_handle_irq(gpio_to_irq(gpio + pin)); + } + } + + if (!unmasked) + desc->chip->unmask(irq); + +} + + +static struct irq_chip tegra_gpio_irq_chip = { + .name = "GPIO", + .ack = tegra_gpio_irq_ack, + .mask = tegra_gpio_irq_mask, + .unmask = tegra_gpio_irq_unmask, + .set_type = tegra_gpio_irq_set_type, +}; + + +/* This lock class tells lockdep that GPIO irqs are in a different + * category than their parents, so it won't report false recursion. + */ +static struct lock_class_key gpio_lock_class; + +static int __init tegra_gpio_init(void) +{ + struct tegra_gpio_bank *bank; + int i; + int j; + + for (i = 0; i < 7; i++) { + for (j = 0; j < 4; j++) { + int gpio = tegra_gpio_compose(i, j, 0); + __raw_writel(0x00, GPIO_INT_ENB(gpio)); + } + } + + gpiochip_add(&tegra_gpio_chip); + + for (i = INT_GPIO_BASE; i < (INT_GPIO_BASE + ARCH_NR_GPIOS); i++) { + bank = &tegra_gpio_banks[GPIO_BANK(irq_to_gpio(i))]; + + lockdep_set_class(&irq_desc[i].lock, &gpio_lock_class); + set_irq_chip_data(i, bank); + set_irq_chip(i, &tegra_gpio_irq_chip); + set_irq_handler(i, handle_simple_irq); + set_irq_flags(i, IRQF_VALID); + } + + for (i = 0; i < ARRAY_SIZE(tegra_gpio_banks); i++) { + bank = &tegra_gpio_banks[i]; + + set_irq_chained_handler(bank->irq, tegra_gpio_irq_handler); + set_irq_data(bank->irq, bank); + + for (j = 0; j < 4; j++) + spin_lock_init(&bank->lvl_lock[j]); + } + + return 0; +} + +postcore_initcall(tegra_gpio_init); + +#ifdef CONFIG_DEBUG_FS + +#include <linux/debugfs.h> +#include <linux/seq_file.h> + +static int dbg_gpio_show(struct seq_file *s, void *unused) +{ + int i; + int j; + + for (i = 0; i < 7; i++) { + for (j = 0; j < 4; j++) { + int gpio = tegra_gpio_compose(i, j, 0); + seq_printf(s, "%d:%d %02x %02x %02x %02x %02x %02x %06x\n", + i, j, + __raw_readl(GPIO_CNF(gpio)), + __raw_readl(GPIO_OE(gpio)), + __raw_readl(GPIO_OUT(gpio)), + __raw_readl(GPIO_IN(gpio)), + __raw_readl(GPIO_INT_STA(gpio)), + __raw_readl(GPIO_INT_ENB(gpio)), + __raw_readl(GPIO_INT_LVL(gpio))); + } + } + return 0; +} + +static int dbg_gpio_open(struct inode *inode, struct file *file) +{ + return single_open(file, dbg_gpio_show, &inode->i_private); +} + +static const struct file_operations debug_fops = { + .open = dbg_gpio_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init tegra_gpio_debuginit(void) +{ + (void) debugfs_create_file("tegra_gpio", S_IRUGO, + NULL, NULL, &debug_fops); + return 0; +} +late_initcall(tegra_gpio_debuginit); +#endif diff --git a/arch/arm/mach-tegra/headsmp.S b/arch/arm/mach-tegra/headsmp.S new file mode 100644 index 00000000000..b5349b2f13d --- /dev/null +++ b/arch/arm/mach-tegra/headsmp.S @@ -0,0 +1,61 @@ +#include <linux/linkage.h> +#include <linux/init.h> + + .section ".text.head", "ax" + __CPUINIT + +/* + * Tegra specific entry point for secondary CPUs. + * The secondary kernel init calls v7_flush_dcache_all before it enables + * the L1; however, the L1 comes out of reset in an undefined state, so + * the clean + invalidate performed by v7_flush_dcache_all causes a bunch + * of cache lines with uninitialized data and uninitialized tags to get + * written out to memory, which does really unpleasant things to the main + * processor. We fix this by performing an invalidate, rather than a + * clean + invalidate, before jumping into the kernel. + */ +ENTRY(v7_invalidate_l1) + mov r0, #0 + mcr p15, 2, r0, c0, c0, 0 + mrc p15, 1, r0, c0, c0, 0 + + ldr r1, =0x7fff + and r2, r1, r0, lsr #13 + + ldr r1, =0x3ff + + and r3, r1, r0, lsr #3 @ NumWays - 1 + add r2, r2, #1 @ NumSets + + and r0, r0, #0x7 + add r0, r0, #4 @ SetShift + + clz r1, r3 @ WayShift + add r4, r3, #1 @ NumWays +1: sub r2, r2, #1 @ NumSets-- + mov r3, r4 @ Temp = NumWays +2: subs r3, r3, #1 @ Temp-- + mov r5, r3, lsl r1 + mov r6, r2, lsl r0 + orr r5, r5, r6 @ Reg = (Temp<<WayShift)|(NumSets<<SetShift) + mcr p15, 0, r5, c7, c6, 2 + bgt 2b + cmp r2, #0 + bgt 1b + dsb + isb + mov pc, lr +ENDPROC(v7_invalidate_l1) + +ENTRY(tegra_secondary_startup) + msr cpsr_fsxc, #0xd3 + bl v7_invalidate_l1 + mrc p15, 0, r0, c0, c0, 5 + and r0, r0, #15 + ldr r1, =0x6000f100 + str r0, [r1] +1: ldr r2, [r1] + cmp r0, r2 + beq 1b + b secondary_startup +ENDPROC(tegra_secondary_startup) diff --git a/arch/arm/mach-tegra/hotplug.c b/arch/arm/mach-tegra/hotplug.c new file mode 100644 index 00000000000..8e7f115aa21 --- /dev/null +++ b/arch/arm/mach-tegra/hotplug.c @@ -0,0 +1,140 @@ +/* + * linux/arch/arm/mach-realview/hotplug.c + * + * Copyright (C) 2002 ARM Ltd. + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/smp.h> +#include <linux/completion.h> + +#include <asm/cacheflush.h> + +static DECLARE_COMPLETION(cpu_killed); + +static inline void cpu_enter_lowpower(void) +{ + unsigned int v; + + flush_cache_all(); + asm volatile( + " mcr p15, 0, %1, c7, c5, 0\n" + " mcr p15, 0, %1, c7, c10, 4\n" + /* + * Turn off coherency + */ + " mrc p15, 0, %0, c1, c0, 1\n" + " bic %0, %0, #0x20\n" + " mcr p15, 0, %0, c1, c0, 1\n" + " mrc p15, 0, %0, c1, c0, 0\n" + " bic %0, %0, #0x04\n" + " mcr p15, 0, %0, c1, c0, 0\n" + : "=&r" (v) + : "r" (0) + : "cc"); +} + +static inline void cpu_leave_lowpower(void) +{ + unsigned int v; + + asm volatile( + "mrc p15, 0, %0, c1, c0, 0\n" + " orr %0, %0, #0x04\n" + " mcr p15, 0, %0, c1, c0, 0\n" + " mrc p15, 0, %0, c1, c0, 1\n" + " orr %0, %0, #0x20\n" + " mcr p15, 0, %0, c1, c0, 1\n" + : "=&r" (v) + : + : "cc"); +} + +static inline void platform_do_lowpower(unsigned int cpu) +{ + /* + * there is no power-control hardware on this platform, so all + * we can do is put the core into WFI; this is safe as the calling + * code will have already disabled interrupts + */ + for (;;) { + /* + * here's the WFI + */ + asm(".word 0xe320f003\n" + : + : + : "memory", "cc"); + + /*if (pen_release == cpu) {*/ + /* + * OK, proper wakeup, we're done + */ + break; + /*}*/ + + /* + * getting here, means that we have come out of WFI without + * having been woken up - this shouldn't happen + * + * The trouble is, letting people know about this is not really + * possible, since we are currently running incoherently, and + * therefore cannot safely call printk() or anything else + */ +#ifdef DEBUG + printk(KERN_WARN "CPU%u: spurious wakeup call\n", cpu); +#endif + } +} + +int platform_cpu_kill(unsigned int cpu) +{ + return wait_for_completion_timeout(&cpu_killed, 5000); +} + +/* + * platform-specific code to shutdown a CPU + * + * Called with IRQs disabled + */ +void platform_cpu_die(unsigned int cpu) +{ +#ifdef DEBUG + unsigned int this_cpu = hard_smp_processor_id(); + + if (cpu != this_cpu) { + printk(KERN_CRIT "Eek! platform_cpu_die running on %u, should be %u\n", + this_cpu, cpu); + BUG(); + } +#endif + + printk(KERN_NOTICE "CPU%u: shutdown\n", cpu); + complete(&cpu_killed); + + /* + * we're ready for shutdown now, so do it + */ + cpu_enter_lowpower(); + platform_do_lowpower(cpu); + + /* + * bring this CPU back into the world of cache + * coherency, and then restore interrupts + */ + cpu_leave_lowpower(); +} + +int platform_cpu_disable(unsigned int cpu) +{ + /* + * we don't allow CPU 0 to be shutdown (it is still too special + * e.g. clock tick interrupts) + */ + return cpu == 0 ? -EPERM : 0; +} diff --git a/arch/arm/mach-tegra/include/mach/barriers.h b/arch/arm/mach-tegra/include/mach/barriers.h new file mode 100644 index 00000000000..cc115174899 --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/barriers.h @@ -0,0 +1,30 @@ +/* + * arch/arm/mach-realview/include/mach/barriers.h + * + * Copyright (C) 2010 ARM Ltd. + * Written by Catalin Marinas <catalin.marinas@arm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef __MACH_BARRIERS_H +#define __MACH_BARRIERS_H + +#include <asm/outercache.h> + +#define rmb() dmb() +#define wmb() do { dsb(); outer_sync(); } while (0) +#define mb() wmb() + +#endif /* __MACH_BARRIERS_H */ diff --git a/arch/arm/mach-tegra/include/mach/clk.h b/arch/arm/mach-tegra/include/mach/clk.h new file mode 100644 index 00000000000..2896f25ebfb --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/clk.h @@ -0,0 +1,26 @@ +/* + * arch/arm/mach-tegra/include/mach/clk.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_CLK_H +#define __MACH_CLK_H + +void tegra_periph_reset_deassert(struct clk *c); +void tegra_periph_reset_assert(struct clk *c); + +#endif diff --git a/arch/arm/mach-tegra/include/mach/clkdev.h b/arch/arm/mach-tegra/include/mach/clkdev.h new file mode 100644 index 00000000000..412f5c63e65 --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/clkdev.h @@ -0,0 +1,32 @@ +/* + * arch/arm/mach-tegra/include/mach/clkdev.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_CLKDEV_H +#define __MACH_CLKDEV_H + +static inline int __clk_get(struct clk *clk) +{ + return 1; +} + +static inline void __clk_put(struct clk *clk) +{ +} + +#endif diff --git a/arch/arm/mach-tegra/include/mach/debug-macro.S b/arch/arm/mach-tegra/include/mach/debug-macro.S new file mode 100644 index 00000000000..55a39564b43 --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/debug-macro.S @@ -0,0 +1,46 @@ +/* + * arch/arm/mach-tegra/include/mach/debug-macro.S + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <mach/io.h> + + .macro addruart,rx, tmp + mrc p15, 0, \rx, c1, c0 + tst \rx, #1 @ MMU enabled? + ldreq \rx, =IO_APB_PHYS @ physical + ldrne \rx, =IO_APB_VIRT @ virtual +#if defined(CONFIG_TEGRA_DEBUG_UART_NONE) +#error "A debug UART must be selected in the kernel config to use DEBUG_LL" +#elif defined(CONFIG_TEGRA_DEBUG_UARTA) + orr \rx, \rx, #0x6000 +#elif defined(CONFIG_TEGRA_DEBUG_UARTB) + ldr \tmp, =0x6040 + orr \rx, \rx, \tmp +#elif defined(CONFIG_TEGRA_DEBUG_UARTC) + orr \rx, \rx, #0x6200 +#elif defined(CONFIG_TEGRA_DEBUG_UARTD) + orr \rx, \rx, #0x6300 +#elif defined(CONFIG_TEGRA_DEBUG_UARTE) + orr \rx, \rx, #0x6400 +#endif + .endm + +#define UART_SHIFT 2 +#include <asm/hardware/debug-8250.S> + diff --git a/arch/arm/mach-tegra/include/mach/entry-macro.S b/arch/arm/mach-tegra/include/mach/entry-macro.S new file mode 100644 index 00000000000..2ba9e5c9d2f --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/entry-macro.S @@ -0,0 +1,118 @@ +/* arch/arm/mach-tegra/include/mach/entry-macro.S + * + * Copyright (C) 2009 Palm, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ +#include <mach/iomap.h> +#include <mach/io.h> + +#if defined(CONFIG_ARM_GIC) + +#include <asm/hardware/gic.h> + + /* Uses the GIC interrupt controller built into the cpu */ +#define ICTRL_BASE (IO_CPU_VIRT + 0x100) + + .macro disable_fiq + .endm + + .macro get_irqnr_preamble, base, tmp + movw \base, #(ICTRL_BASE & 0x0000ffff) + movt \base, #((ICTRL_BASE & 0xffff0000) >> 16) + .endm + + .macro arch_ret_to_user, tmp1, tmp2 + .endm + + /* + * The interrupt numbering scheme is defined in the + * interrupt controller spec. To wit: + * + * Interrupts 0-15 are IPI + * 16-28 are reserved + * 29-31 are local. We allow 30 to be used for the watchdog. + * 32-1020 are global + * 1021-1022 are reserved + * 1023 is "spurious" (no interrupt) + * + * For now, we ignore all local interrupts so only return an interrupt + * if it's between 30 and 1020. The test_for_ipi routine below will + * pick up on IPIs. + * + * A simple read from the controller will tell us the number of the + * highest priority enabled interrupt. We then just need to check + * whether it is in the valid range for an IRQ (30-1020 inclusive). + */ + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + + /* bits 12-10 = src CPU, 9-0 = int # */ + ldr \irqstat, [\base, #GIC_CPU_INTACK] + + ldr \tmp, =1021 + + bic \irqnr, \irqstat, #0x1c00 + + cmp \irqnr, #29 + cmpcc \irqnr, \irqnr + cmpne \irqnr, \tmp + cmpcs \irqnr, \irqnr + + .endm + + /* We assume that irqstat (the raw value of the IRQ acknowledge + * register) is preserved from the macro above. + * If there is an IPI, we immediately signal end of interrupt on the + * controller, since this requires the original irqstat value which + * we won't easily be able to recreate later. + */ + + .macro test_for_ipi, irqnr, irqstat, base, tmp + bic \irqnr, \irqstat, #0x1c00 + cmp \irqnr, #16 + strcc \irqstat, [\base, #GIC_CPU_EOI] + cmpcs \irqnr, \irqnr + .endm + + /* As above, this assumes that irqstat and base are preserved.. */ + + .macro test_for_ltirq, irqnr, irqstat, base, tmp + bic \irqnr, \irqstat, #0x1c00 + mov \tmp, #0 + cmp \irqnr, #29 + moveq \tmp, #1 + streq \irqstat, [\base, #GIC_CPU_EOI] + cmp \tmp, #0 + .endm + +#else + /* legacy interrupt controller for AP16 */ + .macro disable_fiq + .endm + + .macro get_irqnr_preamble, base, tmp + @ enable imprecise aborts + cpsie a + @ EVP base at 0xf010f000 + mov \base, #0xf0000000 + orr \base, #0x00100000 + orr \base, #0x0000f000 + .endm + + .macro arch_ret_to_user, tmp1, tmp2 + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + ldr \irqnr, [\base, #0x20] @ EVT_IRQ_STS + cmp \irqnr, #0x80 + .endm +#endif diff --git a/arch/arm/mach-tegra/include/mach/gpio.h b/arch/arm/mach-tegra/include/mach/gpio.h new file mode 100644 index 00000000000..540e822e50f --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/gpio.h @@ -0,0 +1,53 @@ +/* + * arch/arm/mach-tegra/include/mach/gpio.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_GPIO_H +#define __MACH_TEGRA_GPIO_H + +#include <mach/irqs.h> + +#define ARCH_NR_GPIOS INT_GPIO_NR + +#include <asm-generic/gpio.h> + +#define gpio_get_value __gpio_get_value +#define gpio_set_value __gpio_set_value +#define gpio_cansleep __gpio_cansleep + +#define TEGRA_GPIO_TO_IRQ(gpio) (INT_GPIO_BASE + (gpio)) +#define TEGRA_IRQ_TO_GPIO(irq) ((gpio) - INT_GPIO_BASE) + +static inline int gpio_to_irq(unsigned int gpio) +{ + if (gpio < ARCH_NR_GPIOS) + return INT_GPIO_BASE + gpio; + return -EINVAL; +} + +static inline int irq_to_gpio(unsigned int irq) +{ + if ((irq >= INT_GPIO_BASE) && (irq < INT_GPIO_BASE + INT_GPIO_NR)) + return irq - INT_GPIO_BASE; + return -EINVAL; +} + +void tegra_gpio_enable(int gpio); +void tegra_gpio_disable(int gpio); + +#endif diff --git a/arch/arm/mach-tegra/include/mach/hardware.h b/arch/arm/mach-tegra/include/mach/hardware.h new file mode 100644 index 00000000000..6014edf60d9 --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/hardware.h @@ -0,0 +1,24 @@ +/* + * arch/arm/mach-tegra/include/mach/hardware.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_HARDWARE_H +#define __MACH_TEGRA_HARDWARE_H + +#endif diff --git a/arch/arm/mach-tegra/include/mach/io.h b/arch/arm/mach-tegra/include/mach/io.h new file mode 100644 index 00000000000..35edfc32ffc --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/io.h @@ -0,0 +1,79 @@ +/* + * arch/arm/mach-tegra/include/mach/io.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_IO_H +#define __MACH_TEGRA_IO_H + +#define IO_SPACE_LIMIT 0xffffffff + +/* On TEGRA, many peripherals are very closely packed in + * two 256MB io windows (that actually only use about 64KB + * at the start of each). + * + * We will just map the first 1MB of each window (to minimize + * pt entries needed) and provide a macro to transform physical + * io addresses to an appropriate void __iomem *. + * + */ + +#define IO_CPU_PHYS 0x50040000 +#define IO_CPU_VIRT 0xFE000000 +#define IO_CPU_SIZE SZ_16K + +#define IO_PPSB_PHYS 0x60000000 +#define IO_PPSB_VIRT 0xFE200000 +#define IO_PPSB_SIZE SZ_1M + +#define IO_APB_PHYS 0x70000000 +#define IO_APB_VIRT 0xFE300000 +#define IO_APB_SIZE SZ_1M + +#define IO_TO_VIRT_BETWEEN(p, st, sz) ((p) >= (st) && (p) < ((st) + (sz))) +#define IO_TO_VIRT_XLATE(p, pst, vst) (((p) - (pst) + (vst))) + +#define IO_TO_VIRT(n) ( \ + IO_TO_VIRT_BETWEEN((n), IO_PPSB_PHYS, IO_PPSB_SIZE) ? \ + IO_TO_VIRT_XLATE((n), IO_PPSB_PHYS, IO_PPSB_VIRT) : \ + IO_TO_VIRT_BETWEEN((n), IO_APB_PHYS, IO_APB_SIZE) ? \ + IO_TO_VIRT_XLATE((n), IO_APB_PHYS, IO_APB_VIRT) : \ + IO_TO_VIRT_BETWEEN((n), IO_CPU_PHYS, IO_CPU_SIZE) ? \ + IO_TO_VIRT_XLATE((n), IO_CPU_PHYS, IO_CPU_VIRT) : \ + 0) + +#ifndef __ASSEMBLER__ + +#define __arch_ioremap(p, s, t) tegra_ioremap(p, s, t) +#define __arch_iounmap(v) tegra_iounmap(v) + +void __iomem *tegra_ioremap(unsigned long phys, size_t size, unsigned int type); +void tegra_iounmap(volatile void __iomem *addr); + +#define IO_ADDRESS(n) ((void __iomem *) IO_TO_VIRT(n)) + +static inline void __iomem *__io(unsigned long addr) +{ + return (void __iomem *)addr; +} +#define __io(a) __io(a) +#define __mem_pci(a) (a) + +#endif + +#endif diff --git a/arch/arm/mach-tegra/include/mach/iomap.h b/arch/arm/mach-tegra/include/mach/iomap.h new file mode 100644 index 00000000000..1741f7dd7a9 --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/iomap.h @@ -0,0 +1,203 @@ +/* + * arch/arm/mach-tegra/include/mach/iomap.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_IOMAP_H +#define __MACH_TEGRA_IOMAP_H + +#include <asm/sizes.h> + +#define TEGRA_ARM_PERIF_BASE 0x50040000 +#define TEGRA_ARM_PERIF_SIZE SZ_8K + +#define TEGRA_ARM_INT_DIST_BASE 0x50041000 +#define TEGRA_ARM_INT_DIST_SIZE SZ_4K + +#define TEGRA_DISPLAY_BASE 0x54200000 +#define TEGRA_DISPLAY_SIZE SZ_256K + +#define TEGRA_DISPLAY2_BASE 0x54240000 +#define TEGRA_DISPLAY2_SIZE SZ_256K + +#define TEGRA_PRIMARY_ICTLR_BASE 0x60004000 +#define TEGRA_PRIMARY_ICTLR_SIZE SZ_64 + +#define TEGRA_SECONDARY_ICTLR_BASE 0x60004100 +#define TEGRA_SECONDARY_ICTLR_SIZE SZ_64 + +#define TEGRA_TERTIARY_ICTLR_BASE 0x60004200 +#define TEGRA_TERTIARY_ICTLR_SIZE SZ_64 + +#define TEGRA_QUATERNARY_ICTLR_BASE 0x60004300 +#define TEGRA_QUATERNARY_ICTLR_SIZE SZ_64 + +#define TEGRA_TMR1_BASE 0x60005000 +#define TEGRA_TMR1_SIZE SZ_8 + +#define TEGRA_TMR2_BASE 0x60005008 +#define TEGRA_TMR2_SIZE SZ_8 + +#define TEGRA_TMRUS_BASE 0x60005010 +#define TEGRA_TMRUS_SIZE SZ_64 + +#define TEGRA_TMR3_BASE 0x60005050 +#define TEGRA_TMR3_SIZE SZ_8 + +#define TEGRA_TMR4_BASE 0x60005058 +#define TEGRA_TMR4_SIZE SZ_8 + +#define TEGRA_CLK_RESET_BASE 0x60006000 +#define TEGRA_CLK_RESET_SIZE SZ_4K + +#define TEGRA_FLOW_CTRL_BASE 0x60007000 +#define TEGRA_FLOW_CTRL_SIZE 20 + +#define TEGRA_STATMON_BASE 0x6000C4000 +#define TEGRA_STATMON_SIZE SZ_1K + +#define TEGRA_GPIO_BASE 0x6000D000 +#define TEGRA_GPIO_SIZE SZ_4K + +#define TEGRA_EXCEPTION_VECTORS_BASE 0x6000F000 +#define TEGRA_EXCEPTION_VECTORS_SIZE SZ_4K + +#define TEGRA_APB_MISC_BASE 0x70000000 +#define TEGRA_APB_MISC_SIZE SZ_4K + +#define TEGRA_AC97_BASE 0x70002000 +#define TEGRA_AC97_SIZE SZ_512 + +#define TEGRA_SPDIF_BASE 0x70002400 +#define TEGRA_SPDIF_SIZE SZ_512 + +#define TEGRA_I2S1_BASE 0x70002800 +#define TEGRA_I2S1_SIZE SZ_256 + +#define TEGRA_I2S2_BASE 0x70002A00 +#define TEGRA_I2S2_SIZE SZ_256 + +#define TEGRA_UARTA_BASE 0x70006000 +#define TEGRA_UARTA_SIZE SZ_64 + +#define TEGRA_UARTB_BASE 0x70006040 +#define TEGRA_UARTB_SIZE SZ_64 + +#define TEGRA_UARTC_BASE 0x70006200 +#define TEGRA_UARTC_SIZE SZ_256 + +#define TEGRA_UARTD_BASE 0x70006300 +#define TEGRA_UARTD_SIZE SZ_256 + +#define TEGRA_UARTE_BASE 0x70006400 +#define TEGRA_UARTE_SIZE SZ_256 + +#define TEGRA_NAND_BASE 0x70008000 +#define TEGRA_NAND_SIZE SZ_256 + +#define TEGRA_HSMMC_BASE 0x70008500 +#define TEGRA_HSMMC_SIZE SZ_256 + +#define TEGRA_SNOR_BASE 0x70009000 +#define TEGRA_SNOR_SIZE SZ_4K + +#define TEGRA_PWFM_BASE 0x7000A000 +#define TEGRA_PWFM_SIZE SZ_256 + +#define TEGRA_MIPI_BASE 0x7000B000 +#define TEGRA_MIPI_SIZE SZ_256 + +#define TEGRA_I2C_BASE 0x7000C000 +#define TEGRA_I2C_SIZE SZ_256 + +#define TEGRA_TWC_BASE 0x7000C100 +#define TEGRA_TWC_SIZE SZ_256 + +#define TEGRA_SPI_BASE 0x7000C380 +#define TEGRA_SPI_SIZE 48 + +#define TEGRA_I2C2_BASE 0x7000C400 +#define TEGRA_I2C2_SIZE SZ_256 + +#define TEGRA_I2C3_BASE 0x7000C500 +#define TEGRA_I2C3_SIZE SZ_256 + +#define TEGRA_OWR_BASE 0x7000D000 +#define TEGRA_OWR_SIZE 80 + +#define TEGRA_DVC_BASE 0x7000D000 +#define TEGRA_DVC_SIZE SZ_512 + +#define TEGRA_SPI1_BASE 0x7000D400 +#define TEGRA_SPI1_SIZE SZ_512 + +#define TEGRA_SPI2_BASE 0x7000D600 +#define TEGRA_SPI2_SIZE SZ_512 + +#define TEGRA_SPI3_BASE 0x7000D800 +#define TEGRA_SPI3_SIZE SZ_512 + +#define TEGRA_SPI4_BASE 0x7000DA00 +#define TEGRA_SPI4_SIZE SZ_512 + +#define TEGRA_RTC_BASE 0x7000E000 +#define TEGRA_RTC_SIZE SZ_256 + +#define TEGRA_KBC_BASE 0x7000E200 +#define TEGRA_KBC_SIZE SZ_256 + +#define TEGRA_PMC_BASE 0x7000E400 +#define TEGRA_PMC_SIZE SZ_256 + +#define TEGRA_MC_BASE 0x7000F000 +#define TEGRA_MC_SIZE SZ_1K + +#define TEGRA_EMC_BASE 0x7000F400 +#define TEGRA_EMC_SIZE SZ_1K + +#define TEGRA_FUSE_BASE 0x7000F800 +#define TEGRA_FUSE_SIZE SZ_1K + +#define TEGRA_KFUSE_BASE 0x7000FC00 +#define TEGRA_KFUSE_SIZE SZ_1K + +#define TEGRA_CSITE_BASE 0x70040000 +#define TEGRA_CSITE_SIZE SZ_256K + +#define TEGRA_USB_BASE 0xC5000000 +#define TEGRA_USB_SIZE SZ_16K + +#define TEGRA_USB1_BASE 0xC5004000 +#define TEGRA_USB1_SIZE SZ_16K + +#define TEGRA_USB2_BASE 0xC5008000 +#define TEGRA_USB2_SIZE SZ_16K + +#define TEGRA_SDMMC1_BASE 0xC8000000 +#define TEGRA_SDMMC1_SIZE SZ_512 + +#define TEGRA_SDMMC2_BASE 0xC8000200 +#define TEGRA_SDMMC2_SIZE SZ_512 + +#define TEGRA_SDMMC3_BASE 0xC8000400 +#define TEGRA_SDMMC3_SIZE SZ_512 + +#define TEGRA_SDMMC4_BASE 0xC8000600 +#define TEGRA_SDMMC4_SIZE SZ_512 + +#endif diff --git a/arch/arm/mach-tegra/include/mach/irqs.h b/arch/arm/mach-tegra/include/mach/irqs.h new file mode 100644 index 00000000000..20f640edaa0 --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/irqs.h @@ -0,0 +1,173 @@ +/* + * arch/arm/mach-tegra/include/mach/irqs.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_IRQS_H +#define __MACH_TEGRA_IRQS_H + +#define INT_GIC_BASE 0 + +#define IRQ_LOCALTIMER 29 + +/* Primary Interrupt Controller */ +#define INT_PRI_BASE (INT_GIC_BASE + 32) +#define INT_TMR1 (INT_PRI_BASE + 0) +#define INT_TMR2 (INT_PRI_BASE + 1) +#define INT_RTC (INT_PRI_BASE + 2) +#define INT_I2S2 (INT_PRI_BASE + 3) +#define INT_SHR_SEM_INBOX_IBF (INT_PRI_BASE + 4) +#define INT_SHR_SEM_INBOX_IBE (INT_PRI_BASE + 5) +#define INT_SHR_SEM_OUTBOX_IBF (INT_PRI_BASE + 6) +#define INT_SHR_SEM_OUTBOX_IBE (INT_PRI_BASE + 7) +#define INT_VDE_UCQ_ERROR (INT_PRI_BASE + 8) +#define INT_VDE_SYNC_TOKEN (INT_PRI_BASE + 9) +#define INT_VDE_BSE_V (INT_PRI_BASE + 10) +#define INT_VDE_BSE_A (INT_PRI_BASE + 11) +#define INT_VDE_SXE (INT_PRI_BASE + 12) +#define INT_I2S1 (INT_PRI_BASE + 13) +#define INT_SDMMC1 (INT_PRI_BASE + 14) +#define INT_SDMMC2 (INT_PRI_BASE + 15) +#define INT_XIO (INT_PRI_BASE + 16) +#define INT_VDE (INT_PRI_BASE + 17) +#define INT_AVP_UCQ (INT_PRI_BASE + 18) +#define INT_SDMMC3 (INT_PRI_BASE + 19) +#define INT_USB (INT_PRI_BASE + 20) +#define INT_USB2 (INT_PRI_BASE + 21) +#define INT_PRI_RES_22 (INT_PRI_BASE + 22) +#define INT_EIDE (INT_PRI_BASE + 23) +#define INT_NANDFLASH (INT_PRI_BASE + 24) +#define INT_VCP (INT_PRI_BASE + 25) +#define INT_APB_DMA (INT_PRI_BASE + 26) +#define INT_AHB_DMA (INT_PRI_BASE + 27) +#define INT_GNT_0 (INT_PRI_BASE + 28) +#define INT_GNT_1 (INT_PRI_BASE + 29) +#define INT_OWR (INT_PRI_BASE + 30) +#define INT_SDMMC4 (INT_PRI_BASE + 31) + +/* Secondary Interrupt Controller */ +#define INT_SEC_BASE (INT_PRI_BASE + 32) +#define INT_GPIO1 (INT_SEC_BASE + 0) +#define INT_GPIO2 (INT_SEC_BASE + 1) +#define INT_GPIO3 (INT_SEC_BASE + 2) +#define INT_GPIO4 (INT_SEC_BASE + 3) +#define INT_UARTA (INT_SEC_BASE + 4) +#define INT_UARTB (INT_SEC_BASE + 5) +#define INT_I2C (INT_SEC_BASE + 6) +#define INT_SPI (INT_SEC_BASE + 7) +#define INT_TWC (INT_SEC_BASE + 8) +#define INT_TMR3 (INT_SEC_BASE + 9) +#define INT_TMR4 (INT_SEC_BASE + 10) +#define INT_FLOW_RSM0 (INT_SEC_BASE + 11) +#define INT_FLOW_RSM1 (INT_SEC_BASE + 12) +#define INT_SPDIF (INT_SEC_BASE + 13) +#define INT_UARTC (INT_SEC_BASE + 14) +#define INT_MIPI (INT_SEC_BASE + 15) +#define INT_EVENTA (INT_SEC_BASE + 16) +#define INT_EVENTB (INT_SEC_BASE + 17) +#define INT_EVENTC (INT_SEC_BASE + 18) +#define INT_EVENTD (INT_SEC_BASE + 19) +#define INT_VFIR (INT_SEC_BASE + 20) +#define INT_DVC (INT_SEC_BASE + 21) +#define INT_SYS_STATS_MON (INT_SEC_BASE + 22) +#define INT_GPIO5 (INT_SEC_BASE + 23) +#define INT_CPU0_PMU_INTR (INT_SEC_BASE + 24) +#define INT_CPU2_PMU_INTR (INT_SEC_BASE + 25) +#define INT_SEC_RES_26 (INT_SEC_BASE + 26) +#define INT_S_LINK1 (INT_SEC_BASE + 27) +#define INT_APB_DMA_COP (INT_SEC_BASE + 28) +#define INT_AHB_DMA_COP (INT_SEC_BASE + 29) +#define INT_DMA_TX (INT_SEC_BASE + 30) +#define INT_DMA_RX (INT_SEC_BASE + 31) + +/* Tertiary Interrupt Controller */ +#define INT_TRI_BASE (INT_SEC_BASE + 32) +#define INT_HOST1X_COP_SYNCPT (INT_TRI_BASE + 0) +#define INT_HOST1X_MPCORE_SYNCPT (INT_TRI_BASE + 1) +#define INT_HOST1X_COP_GENERAL (INT_TRI_BASE + 2) +#define INT_HOST1X_MPCORE_GENERAL (INT_TRI_BASE + 3) +#define INT_MPE_GENERAL (INT_TRI_BASE + 4) +#define INT_VI_GENERAL (INT_TRI_BASE + 5) +#define INT_EPP_GENERAL (INT_TRI_BASE + 6) +#define INT_ISP_GENERAL (INT_TRI_BASE + 7) +#define INT_2D_GENERAL (INT_TRI_BASE + 8) +#define INT_DISPLAY_GENERAL (INT_TRI_BASE + 9) +#define INT_DISPLAY_B_GENERAL (INT_TRI_BASE + 10) +#define INT_HDMI (INT_TRI_BASE + 11) +#define INT_TVO_GENERAL (INT_TRI_BASE + 12) +#define INT_MC_GENERAL (INT_TRI_BASE + 13) +#define INT_EMC_GENERAL (INT_TRI_BASE + 14) +#define INT_TRI_RES_15 (INT_TRI_BASE + 15) +#define INT_TRI_RES_16 (INT_TRI_BASE + 16) +#define INT_AC97 (INT_TRI_BASE + 17) +#define INT_SPI_2 (INT_TRI_BASE + 18) +#define INT_SPI_3 (INT_TRI_BASE + 19) +#define INT_I2C2 (INT_TRI_BASE + 20) +#define INT_KBC (INT_TRI_BASE + 21) +#define INT_EXTERNAL_PMU (INT_TRI_BASE + 22) +#define INT_GPIO6 (INT_TRI_BASE + 23) +#define INT_TVDAC (INT_TRI_BASE + 24) +#define INT_GPIO7 (INT_TRI_BASE + 25) +#define INT_UARTD (INT_TRI_BASE + 26) +#define INT_UARTE (INT_TRI_BASE + 27) +#define INT_I2C3 (INT_TRI_BASE + 28) +#define INT_SPI_4 (INT_TRI_BASE + 29) +#define INT_TRI_RES_30 (INT_TRI_BASE + 30) +#define INT_SW_RESERVED (INT_TRI_BASE + 31) + +/* Quaternary Interrupt Controller */ +#define INT_QUAD_BASE (INT_TRI_BASE + 32) +#define INT_SNOR (INT_QUAD_BASE + 0) +#define INT_USB3 (INT_QUAD_BASE + 1) +#define INT_PCIE_INTR (INT_QUAD_BASE + 2) +#define INT_PCIE_MSI (INT_QUAD_BASE + 3) +#define INT_QUAD_RES_4 (INT_QUAD_BASE + 4) +#define INT_QUAD_RES_5 (INT_QUAD_BASE + 5) +#define INT_QUAD_RES_6 (INT_QUAD_BASE + 6) +#define INT_QUAD_RES_7 (INT_QUAD_BASE + 7) +#define INT_APB_DMA_CH0 (INT_QUAD_BASE + 8) +#define INT_APB_DMA_CH1 (INT_QUAD_BASE + 9) +#define INT_APB_DMA_CH2 (INT_QUAD_BASE + 10) +#define INT_APB_DMA_CH3 (INT_QUAD_BASE + 11) +#define INT_APB_DMA_CH4 (INT_QUAD_BASE + 12) +#define INT_APB_DMA_CH5 (INT_QUAD_BASE + 13) +#define INT_APB_DMA_CH6 (INT_QUAD_BASE + 14) +#define INT_APB_DMA_CH7 (INT_QUAD_BASE + 15) +#define INT_APB_DMA_CH8 (INT_QUAD_BASE + 16) +#define INT_APB_DMA_CH9 (INT_QUAD_BASE + 17) +#define INT_APB_DMA_CH10 (INT_QUAD_BASE + 18) +#define INT_APB_DMA_CH11 (INT_QUAD_BASE + 19) +#define INT_APB_DMA_CH12 (INT_QUAD_BASE + 20) +#define INT_APB_DMA_CH13 (INT_QUAD_BASE + 21) +#define INT_APB_DMA_CH14 (INT_QUAD_BASE + 22) +#define INT_APB_DMA_CH15 (INT_QUAD_BASE + 23) +#define INT_QUAD_RES_24 (INT_QUAD_BASE + 24) +#define INT_QUAD_RES_25 (INT_QUAD_BASE + 25) +#define INT_QUAD_RES_26 (INT_QUAD_BASE + 26) +#define INT_QUAD_RES_27 (INT_QUAD_BASE + 27) +#define INT_QUAD_RES_28 (INT_QUAD_BASE + 28) +#define INT_QUAD_RES_29 (INT_QUAD_BASE + 29) +#define INT_QUAD_RES_30 (INT_QUAD_BASE + 30) +#define INT_QUAD_RES_31 (INT_QUAD_BASE + 31) + +#define INT_GPIO_BASE (INT_QUAD_BASE + 32) +#define INT_GPIO_NR (28 * 8) + +#define NR_IRQS (INT_GPIO_BASE + INT_GPIO_NR) + +#endif diff --git a/arch/arm/mach-tegra/include/mach/memory.h b/arch/arm/mach-tegra/include/mach/memory.h new file mode 100644 index 00000000000..6151bab62af --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/memory.h @@ -0,0 +1,28 @@ +/* + * arch/arm/mach-tegra/include/mach/memory.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_MEMORY_H +#define __MACH_TEGRA_MEMORY_H + +/* physical offset of RAM */ +#define PHYS_OFFSET UL(0) + +#endif + diff --git a/arch/arm/mach-tegra/include/mach/pinmux.h b/arch/arm/mach-tegra/include/mach/pinmux.h new file mode 100644 index 00000000000..41c8ce5b7c2 --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/pinmux.h @@ -0,0 +1,348 @@ +/* + * linux/arch/arm/mach-tegra/include/mach/pinmux.h + * + * Copyright (C) 2010 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_PINMUX_H +#define __MACH_TEGRA_PINMUX_H + +enum tegra_pingroup { + TEGRA_PINGROUP_ATA = 0, + TEGRA_PINGROUP_ATB, + TEGRA_PINGROUP_ATC, + TEGRA_PINGROUP_ATD, + TEGRA_PINGROUP_ATE, + TEGRA_PINGROUP_CDEV1, + TEGRA_PINGROUP_CDEV2, + TEGRA_PINGROUP_CRTP, + TEGRA_PINGROUP_CSUS, + TEGRA_PINGROUP_DAP1, + TEGRA_PINGROUP_DAP2, + TEGRA_PINGROUP_DAP3, + TEGRA_PINGROUP_DAP4, + TEGRA_PINGROUP_DDC, + TEGRA_PINGROUP_DTA, + TEGRA_PINGROUP_DTB, + TEGRA_PINGROUP_DTC, + TEGRA_PINGROUP_DTD, + TEGRA_PINGROUP_DTE, + TEGRA_PINGROUP_DTF, + TEGRA_PINGROUP_GMA, + TEGRA_PINGROUP_GMB, + TEGRA_PINGROUP_GMC, + TEGRA_PINGROUP_GMD, + TEGRA_PINGROUP_GME, + TEGRA_PINGROUP_GPU, + TEGRA_PINGROUP_GPU7, + TEGRA_PINGROUP_GPV, + TEGRA_PINGROUP_HDINT, + TEGRA_PINGROUP_I2CP, + TEGRA_PINGROUP_IRRX, + TEGRA_PINGROUP_IRTX, + TEGRA_PINGROUP_KBCA, + TEGRA_PINGROUP_KBCB, + TEGRA_PINGROUP_KBCC, + TEGRA_PINGROUP_KBCD, + TEGRA_PINGROUP_KBCE, + TEGRA_PINGROUP_KBCF, + TEGRA_PINGROUP_LCSN, + TEGRA_PINGROUP_LD0, + TEGRA_PINGROUP_LD1, + TEGRA_PINGROUP_LD10, + TEGRA_PINGROUP_LD11, + TEGRA_PINGROUP_LD12, + TEGRA_PINGROUP_LD13, + TEGRA_PINGROUP_LD14, + TEGRA_PINGROUP_LD15, + TEGRA_PINGROUP_LD16, + TEGRA_PINGROUP_LD17, + TEGRA_PINGROUP_LD2, + TEGRA_PINGROUP_LD3, + TEGRA_PINGROUP_LD4, + TEGRA_PINGROUP_LD5, + TEGRA_PINGROUP_LD6, + TEGRA_PINGROUP_LD7, + TEGRA_PINGROUP_LD8, + TEGRA_PINGROUP_LD9, + TEGRA_PINGROUP_LDC, + TEGRA_PINGROUP_LDI, + TEGRA_PINGROUP_LHP0, + TEGRA_PINGROUP_LHP1, + TEGRA_PINGROUP_LHP2, + TEGRA_PINGROUP_LHS, + TEGRA_PINGROUP_LM0, + TEGRA_PINGROUP_LM1, + TEGRA_PINGROUP_LPP, + TEGRA_PINGROUP_LPW0, + TEGRA_PINGROUP_LPW1, + TEGRA_PINGROUP_LPW2, + TEGRA_PINGROUP_LSC0, + TEGRA_PINGROUP_LSC1, + TEGRA_PINGROUP_LSCK, + TEGRA_PINGROUP_LSDA, + TEGRA_PINGROUP_LSDI, + TEGRA_PINGROUP_LSPI, + TEGRA_PINGROUP_LVP0, + TEGRA_PINGROUP_LVP1, + TEGRA_PINGROUP_LVS, + TEGRA_PINGROUP_OWC, + TEGRA_PINGROUP_PMC, + TEGRA_PINGROUP_PTA, + TEGRA_PINGROUP_RM, + TEGRA_PINGROUP_SDB, + TEGRA_PINGROUP_SDC, + TEGRA_PINGROUP_SDD, + TEGRA_PINGROUP_SDIO1, + TEGRA_PINGROUP_SLXA, + TEGRA_PINGROUP_SLXC, + TEGRA_PINGROUP_SLXD, + TEGRA_PINGROUP_SLXK, + TEGRA_PINGROUP_SPDI, + TEGRA_PINGROUP_SPDO, + TEGRA_PINGROUP_SPIA, + TEGRA_PINGROUP_SPIB, + TEGRA_PINGROUP_SPIC, + TEGRA_PINGROUP_SPID, + TEGRA_PINGROUP_SPIE, + TEGRA_PINGROUP_SPIF, + TEGRA_PINGROUP_SPIG, + TEGRA_PINGROUP_SPIH, + TEGRA_PINGROUP_UAA, + TEGRA_PINGROUP_UAB, + TEGRA_PINGROUP_UAC, + TEGRA_PINGROUP_UAD, + TEGRA_PINGROUP_UCA, + TEGRA_PINGROUP_UCB, + TEGRA_PINGROUP_UDA, + /* these pin groups only have pullup and pull down control */ + TEGRA_PINGROUP_CK32, + TEGRA_PINGROUP_DDRC, + TEGRA_PINGROUP_PMCA, + TEGRA_PINGROUP_PMCB, + TEGRA_PINGROUP_PMCC, + TEGRA_PINGROUP_PMCD, + TEGRA_PINGROUP_PMCE, + TEGRA_PINGROUP_XM2C, + TEGRA_PINGROUP_XM2D, + TEGRA_MAX_PINGROUP, +}; + +enum tegra_mux_func { + TEGRA_MUX_RSVD = 0x8000, + TEGRA_MUX_RSVD1 = 0x8000, + TEGRA_MUX_RSVD2 = 0x8001, + TEGRA_MUX_RSVD3 = 0x8002, + TEGRA_MUX_RSVD4 = 0x8003, + TEGRA_MUX_NONE = -1, + TEGRA_MUX_AHB_CLK, + TEGRA_MUX_APB_CLK, + TEGRA_MUX_AUDIO_SYNC, + TEGRA_MUX_CRT, + TEGRA_MUX_DAP1, + TEGRA_MUX_DAP2, + TEGRA_MUX_DAP3, + TEGRA_MUX_DAP4, + TEGRA_MUX_DAP5, + TEGRA_MUX_DISPLAYA, + TEGRA_MUX_DISPLAYB, + TEGRA_MUX_EMC_TEST0_DLL, + TEGRA_MUX_EMC_TEST1_DLL, + TEGRA_MUX_GMI, + TEGRA_MUX_GMI_INT, + TEGRA_MUX_HDMI, + TEGRA_MUX_I2C, + TEGRA_MUX_I2C2, + TEGRA_MUX_I2C3, + TEGRA_MUX_IDE, + TEGRA_MUX_IRDA, + TEGRA_MUX_KBC, + TEGRA_MUX_MIO, + TEGRA_MUX_MIPI_HS, + TEGRA_MUX_NAND, + TEGRA_MUX_OSC, + TEGRA_MUX_OWR, + TEGRA_MUX_PCIE, + TEGRA_MUX_PLLA_OUT, + TEGRA_MUX_PLLC_OUT1, + TEGRA_MUX_PLLM_OUT1, + TEGRA_MUX_PLLP_OUT2, + TEGRA_MUX_PLLP_OUT3, + TEGRA_MUX_PLLP_OUT4, + TEGRA_MUX_PWM, + TEGRA_MUX_PWR_INTR, + TEGRA_MUX_PWR_ON, + TEGRA_MUX_RTCK, + TEGRA_MUX_SDIO1, + TEGRA_MUX_SDIO2, + TEGRA_MUX_SDIO3, + TEGRA_MUX_SDIO4, + TEGRA_MUX_SFLASH, + TEGRA_MUX_SPDIF, + TEGRA_MUX_SPI1, + TEGRA_MUX_SPI2, + TEGRA_MUX_SPI2_ALT, + TEGRA_MUX_SPI3, + TEGRA_MUX_SPI4, + TEGRA_MUX_TRACE, + TEGRA_MUX_TWC, + TEGRA_MUX_UARTA, + TEGRA_MUX_UARTB, + TEGRA_MUX_UARTC, + TEGRA_MUX_UARTD, + TEGRA_MUX_UARTE, + TEGRA_MUX_ULPI, + TEGRA_MUX_VI, + TEGRA_MUX_VI_SENSOR_CLK, + TEGRA_MUX_XIO, + TEGRA_MAX_MUX, +}; + +enum tegra_pullupdown { + TEGRA_PUPD_NORMAL = 0, + TEGRA_PUPD_PULL_DOWN, + TEGRA_PUPD_PULL_UP, +}; + +enum tegra_tristate { + TEGRA_TRI_NORMAL = 0, + TEGRA_TRI_TRISTATE = 1, +}; + +struct tegra_pingroup_config { + enum tegra_pingroup pingroup; + enum tegra_mux_func func; + enum tegra_pullupdown pupd; + enum tegra_tristate tristate; +}; + +enum tegra_slew { + TEGRA_SLEW_FASTEST = 0, + TEGRA_SLEW_FAST, + TEGRA_SLEW_SLOW, + TEGRA_SLEW_SLOWEST, + TEGRA_MAX_SLEW, +}; + +enum tegra_pull_strength { + TEGRA_PULL_0 = 0, + TEGRA_PULL_1, + TEGRA_PULL_2, + TEGRA_PULL_3, + TEGRA_PULL_4, + TEGRA_PULL_5, + TEGRA_PULL_6, + TEGRA_PULL_7, + TEGRA_PULL_8, + TEGRA_PULL_9, + TEGRA_PULL_10, + TEGRA_PULL_11, + TEGRA_PULL_12, + TEGRA_PULL_13, + TEGRA_PULL_14, + TEGRA_PULL_15, + TEGRA_PULL_16, + TEGRA_PULL_17, + TEGRA_PULL_18, + TEGRA_PULL_19, + TEGRA_PULL_20, + TEGRA_PULL_21, + TEGRA_PULL_22, + TEGRA_PULL_23, + TEGRA_PULL_24, + TEGRA_PULL_25, + TEGRA_PULL_26, + TEGRA_PULL_27, + TEGRA_PULL_28, + TEGRA_PULL_29, + TEGRA_PULL_30, + TEGRA_PULL_31, + TEGRA_MAX_PULL, +}; + +enum tegra_drive_pingroup { + TEGRA_DRIVE_PINGROUP_AO1 = 0, + TEGRA_DRIVE_PINGROUP_AO2, + TEGRA_DRIVE_PINGROUP_AT1, + TEGRA_DRIVE_PINGROUP_AT2, + TEGRA_DRIVE_PINGROUP_CDEV1, + TEGRA_DRIVE_PINGROUP_CDEV2, + TEGRA_DRIVE_PINGROUP_CSUS, + TEGRA_DRIVE_PINGROUP_DAP1, + TEGRA_DRIVE_PINGROUP_DAP2, + TEGRA_DRIVE_PINGROUP_DAP3, + TEGRA_DRIVE_PINGROUP_DAP4, + TEGRA_DRIVE_PINGROUP_DBG, + TEGRA_DRIVE_PINGROUP_LCD1, + TEGRA_DRIVE_PINGROUP_LCD2, + TEGRA_DRIVE_PINGROUP_SDMMC2, + TEGRA_DRIVE_PINGROUP_SDMMC3, + TEGRA_DRIVE_PINGROUP_SPI, + TEGRA_DRIVE_PINGROUP_UAA, + TEGRA_DRIVE_PINGROUP_UAB, + TEGRA_DRIVE_PINGROUP_UART2, + TEGRA_DRIVE_PINGROUP_UART3, + TEGRA_DRIVE_PINGROUP_VI1, + TEGRA_DRIVE_PINGROUP_VI2, + TEGRA_DRIVE_PINGROUP_XM2A, + TEGRA_DRIVE_PINGROUP_XM2C, + TEGRA_DRIVE_PINGROUP_XM2D, + TEGRA_DRIVE_PINGROUP_XM2CLK, + TEGRA_DRIVE_PINGROUP_MEMCOMP, + TEGRA_MAX_DRIVE_PINGROUP, +}; + +enum tegra_drive { + TEGRA_DRIVE_DIV_8 = 0, + TEGRA_DRIVE_DIV_4, + TEGRA_DRIVE_DIV_2, + TEGRA_DRIVE_DIV_1, + TEGRA_MAX_DRIVE, +}; + +enum tegra_hsm { + TEGRA_HSM_DISABLE = 0, + TEGRA_HSM_ENABLE, +}; + +enum tegra_schmitt { + TEGRA_SCHMITT_DISABLE = 0, + TEGRA_SCHMITT_ENABLE, +}; + +struct tegra_drive_pingroup_config { + enum tegra_drive_pingroup pingroup; + enum tegra_hsm hsm; + enum tegra_schmitt schmitt; + enum tegra_drive drive; + enum tegra_pull_strength pull_down; + enum tegra_pull_strength pull_up; + enum tegra_slew slew_rising; + enum tegra_slew slew_falling; +}; + +int tegra_pinmux_set_func(enum tegra_pingroup pg, enum tegra_mux_func func); +int tegra_pinmux_set_tristate(enum tegra_pingroup pg, enum tegra_tristate tristate); +int tegra_pinmux_set_pullupdown(enum tegra_pingroup pg, enum tegra_pullupdown pupd); + +void tegra_pinmux_config_pingroup(enum tegra_pingroup pingroup, + enum tegra_mux_func func, enum tegra_pullupdown pupd, + enum tegra_tristate tristate); + +void tegra_pinmux_config_table(struct tegra_pingroup_config *config, int len); + +void tegra_drive_pinmux_config_table(struct tegra_drive_pingroup_config *config, + int len); + +#endif + diff --git a/arch/arm/mach-tegra/include/mach/smp.h b/arch/arm/mach-tegra/include/mach/smp.h new file mode 100644 index 00000000000..8b42dab79a7 --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/smp.h @@ -0,0 +1,30 @@ +#ifndef ASMARM_ARCH_SMP_H +#define ASMARM_ARCH_SMP_H + + +#include <asm/hardware/gic.h> + +#define hard_smp_processor_id() \ + ({ \ + unsigned int cpunum; \ + __asm__("mrc p15, 0, %0, c0, c0, 5" \ + : "=r" (cpunum)); \ + cpunum &= 0x0F; \ + }) + +/* + * We use IRQ1 as the IPI + */ +static inline void smp_cross_call(const struct cpumask *mask) +{ + gic_raise_softirq(mask, 1); +} + +/* + * Do nothing on MPcore. + */ +static inline void smp_cross_call_done(cpumask_t callmap) +{ +} + +#endif diff --git a/arch/arm/mach-tegra/include/mach/system.h b/arch/arm/mach-tegra/include/mach/system.h new file mode 100644 index 00000000000..84d5d46113f --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/system.h @@ -0,0 +1,39 @@ +/* + * arch/arm/mach-tegra/include/mach/system.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_SYSTEM_H +#define __MACH_TEGRA_SYSTEM_H + +#include <mach/hardware.h> +#include <mach/iomap.h> + +static inline void arch_idle(void) +{ +} + +static inline void arch_reset(char mode, const char *cmd) +{ + void __iomem *reset = IO_ADDRESS(TEGRA_CLK_RESET_BASE + 0x04); + u32 reg = readl(reset); + reg |= 0x04; + writel(reg, reset); +} + +#endif diff --git a/arch/arm/mach-tegra/include/mach/timex.h b/arch/arm/mach-tegra/include/mach/timex.h new file mode 100644 index 00000000000..a44ccbdb7db --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/timex.h @@ -0,0 +1,26 @@ +/* + * arch/arm/mach-tegra/include/mach/timex.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_TIMEX_H +#define __MACH_TEGRA_TIMEX_H + +#define CLOCK_TICK_RATE 1000000 + +#endif diff --git a/arch/arm/mach-tegra/include/mach/uncompress.h b/arch/arm/mach-tegra/include/mach/uncompress.h new file mode 100644 index 00000000000..6c4dd815abd --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/uncompress.h @@ -0,0 +1,78 @@ +/* + * arch/arm/mach-tegra/include/mach/uncompress.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_UNCOMPRESS_H +#define __MACH_TEGRA_UNCOMPRESS_H + +#include <linux/types.h> +#include <linux/serial_reg.h> + +#include <mach/iomap.h> + +#if defined(CONFIG_TEGRA_DEBUG_UARTA) +#define DEBUG_UART_BASE TEGRA_UARTA_BASE +#elif defined(CONFIG_TEGRA_DEBUG_UARTB) +#define DEBUG_UART_BASE TEGRA_UARTB_BASE +#elif defined(CONFIG_TEGRA_DEBUG_UARTC) +#define DEBUG_UART_BASE TEGRA_UARTC_BASE +#elif defined(CONFIG_TEGRA_DEBUG_UARTD) +#define DEBUG_UART_BASE TEGRA_UARTD_BASE +#elif defined(CONFIG_TEGRA_DEBUG_UARTE) +#define DEBUG_UART_BASE TEGRA_UARTE_BASE +#else +#define DEBUG_UART_BASE NULL +#endif + +static void putc(int c) +{ + volatile u8 *uart = (volatile u8 *)DEBUG_UART_BASE; + int shift = 2; + + if (uart == NULL) + return; + + while (!(uart[UART_LSR << shift] & UART_LSR_THRE)) + barrier(); + uart[UART_TX << shift] = c; +} + +static inline void flush(void) +{ +} + +static inline void arch_decomp_setup(void) +{ + volatile u8 *uart = (volatile u8 *)DEBUG_UART_BASE; + int shift = 2; + + if (uart == NULL) + return; + + uart[UART_LCR << shift] |= UART_LCR_DLAB; + uart[UART_DLL << shift] = 0x75; + uart[UART_DLM << shift] = 0x0; + uart[UART_LCR << shift] = 3; +} + +static inline void arch_decomp_wdog(void) +{ +} + +#endif diff --git a/arch/arm/mach-tegra/include/mach/vmalloc.h b/arch/arm/mach-tegra/include/mach/vmalloc.h new file mode 100644 index 00000000000..267a141730d --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/vmalloc.h @@ -0,0 +1,28 @@ +/* + * arch/arm/mach-tegra/include/mach/vmalloc.h + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MACH_TEGRA_VMALLOC_H +#define __MACH_TEGRA_VMALLOC_H + +#include <asm/sizes.h> + +#define VMALLOC_END 0xFE000000 + +#endif diff --git a/arch/arm/mach-tegra/io.c b/arch/arm/mach-tegra/io.c new file mode 100644 index 00000000000..9fe2c5c683d --- /dev/null +++ b/arch/arm/mach-tegra/io.c @@ -0,0 +1,78 @@ +/* + * arch/arm/mach-tegra/io.c + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * Erik Gilling <konkers@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/mm.h> +#include <linux/io.h> + +#include <mach/hardware.h> +#include <asm/page.h> +#include <asm/mach/map.h> + +#include "board.h" + +static struct map_desc tegra_io_desc[] __initdata = { + { + .virtual = IO_PPSB_VIRT, + .pfn = __phys_to_pfn(IO_PPSB_PHYS), + .length = IO_PPSB_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = IO_APB_VIRT, + .pfn = __phys_to_pfn(IO_APB_PHYS), + .length = IO_APB_SIZE, + .type = MT_DEVICE, + }, + { + .virtual = IO_CPU_VIRT, + .pfn = __phys_to_pfn(IO_CPU_PHYS), + .length = IO_CPU_SIZE, + .type = MT_DEVICE, + }, +}; + +void __init tegra_map_common_io(void) +{ + iotable_init(tegra_io_desc, ARRAY_SIZE(tegra_io_desc)); +} + +/* + * Intercept ioremap() requests for addresses in our fixed mapping regions. + */ +void __iomem *tegra_ioremap(unsigned long p, size_t size, unsigned int type) +{ + void __iomem *v = IO_ADDRESS(p); + if (v == NULL) + v = __arm_ioremap(p, size, type); + return v; +} +EXPORT_SYMBOL(tegra_ioremap); + +void tegra_iounmap(volatile void __iomem *addr) +{ + unsigned long virt = (unsigned long)addr; + + if (virt >= VMALLOC_START && virt < VMALLOC_END) + __iounmap(addr); +} +EXPORT_SYMBOL(tegra_iounmap); diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c new file mode 100644 index 00000000000..1fdbe708d43 --- /dev/null +++ b/arch/arm/mach-tegra/irq.c @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/io.h> + +#include <asm/hardware/gic.h> + +#include <mach/iomap.h> + +#include "board.h" + +void __init tegra_init_irq(void) +{ + gic_dist_init(0, IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE), 29); + gic_cpu_init(0, IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x100)); +} diff --git a/arch/arm/mach-tegra/localtimer.c b/arch/arm/mach-tegra/localtimer.c new file mode 100644 index 00000000000..f81ca7cbbc1 --- /dev/null +++ b/arch/arm/mach-tegra/localtimer.c @@ -0,0 +1,25 @@ +/* + * arch/arm/mach-tegra/localtimer.c + * + * Copyright (C) 2002 ARM Ltd. + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/init.h> +#include <linux/smp.h> +#include <linux/clockchips.h> +#include <asm/irq.h> +#include <asm/smp_twd.h> +#include <asm/localtimer.h> + +/* + * Setup the local clock events for a CPU. + */ +void __cpuinit local_timer_setup(struct clock_event_device *evt) +{ + evt->irq = IRQ_LOCALTIMER; + twd_timer_setup(evt); +} diff --git a/arch/arm/mach-tegra/pinmux.c b/arch/arm/mach-tegra/pinmux.c new file mode 100644 index 00000000000..13ae10237e8 --- /dev/null +++ b/arch/arm/mach-tegra/pinmux.c @@ -0,0 +1,945 @@ +/* + * linux/arch/arm/mach-tegra/pinmux.c + * + * Copyright (C) 2010 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/spinlock.h> +#include <linux/io.h> + +#include <mach/iomap.h> +#include <mach/pinmux.h> + + +#define TEGRA_TRI_STATE(x) (0x14 + (4 * (x))) +#define TEGRA_PP_MUX_CTL(x) (0x80 + (4 * (x))) +#define TEGRA_PP_PU_PD(x) (0xa0 + (4 * (x))) + +#define REG_A 0 +#define REG_B 1 +#define REG_C 2 +#define REG_D 3 +#define REG_E 4 +#define REG_F 5 +#define REG_G 6 + +#define REG_N -1 + +#define HSM_EN(reg) (((reg) >> 2) & 0x1) +#define SCHMT_EN(reg) (((reg) >> 3) & 0x1) +#define LPMD(reg) (((reg) >> 4) & 0x3) +#define DRVDN(reg) (((reg) >> 12) & 0x1f) +#define DRVUP(reg) (((reg) >> 20) & 0x1f) +#define SLWR(reg) (((reg) >> 28) & 0x3) +#define SLWF(reg) (((reg) >> 30) & 0x3) + +struct tegra_pingroup_desc { + const char *name; + int funcs[4]; + s8 tri_reg; /* offset into the TRISTATE_REG_* register bank */ + s8 tri_bit; /* offset into the TRISTATE_REG_* register bit */ + s8 mux_reg; /* offset into the PIN_MUX_CTL_* register bank */ + s8 mux_bit; /* offset into the PIN_MUX_CTL_* register bit */ + s8 pupd_reg; /* offset into the PULL_UPDOWN_REG_* register bank */ + s8 pupd_bit; /* offset into the PULL_UPDOWN_REG_* register bit */ +}; + +#define PINGROUP(pg_name, f0, f1, f2, f3, \ + tri_r, tri_b, mux_r, mux_b, pupd_r, pupd_b) \ + [TEGRA_PINGROUP_ ## pg_name] = { \ + .name = #pg_name, \ + .funcs = { \ + TEGRA_MUX_ ## f0, \ + TEGRA_MUX_ ## f1, \ + TEGRA_MUX_ ## f2, \ + TEGRA_MUX_ ## f3, \ + }, \ + .tri_reg = REG_ ## tri_r, \ + .tri_bit = tri_b, \ + .mux_reg = REG_ ## mux_r, \ + .mux_bit = mux_b, \ + .pupd_reg = REG_ ## pupd_r, \ + .pupd_bit = pupd_b, \ + } + +static const struct tegra_pingroup_desc pingroups[TEGRA_MAX_PINGROUP] = { + PINGROUP(ATA, IDE, NAND, GMI, RSVD, A, 0, A, 24, A, 0), + PINGROUP(ATB, IDE, NAND, GMI, SDIO4, A, 1, A, 16, A, 2), + PINGROUP(ATC, IDE, NAND, GMI, SDIO4, A, 2, A, 22, A, 4), + PINGROUP(ATD, IDE, NAND, GMI, SDIO4, A, 3, A, 20, A, 6), + PINGROUP(ATE, IDE, NAND, GMI, RSVD, B, 25, A, 12, A, 8), + PINGROUP(CDEV1, OSC, PLLA_OUT, PLLM_OUT1, AUDIO_SYNC, A, 4, C, 2, C, 0), + PINGROUP(CDEV2, OSC, AHB_CLK, APB_CLK, PLLP_OUT4, A, 5, C, 4, C, 2), + PINGROUP(CRTP, CRT, RSVD, RSVD, RSVD, D, 14, G, 20, B, 24), + PINGROUP(CSUS, PLLC_OUT1, PLLP_OUT2, PLLP_OUT3, VI_SENSOR_CLK, A, 6, C, 6, D, 24), + PINGROUP(DAP1, DAP1, RSVD, GMI, SDIO2, A, 7, C, 20, A, 10), + PINGROUP(DAP2, DAP2, TWC, RSVD, GMI, A, 8, C, 22, A, 12), + PINGROUP(DAP3, DAP3, RSVD, RSVD, RSVD, A, 9, C, 24, A, 14), + PINGROUP(DAP4, DAP4, RSVD, GMI, RSVD, A, 10, C, 26, A, 16), + PINGROUP(DDC, I2C2, RSVD, RSVD, RSVD, B, 31, C, 0, E, 28), + PINGROUP(DTA, RSVD, SDIO2, VI, RSVD, A, 11, B, 20, A, 18), + PINGROUP(DTB, RSVD, RSVD, VI, SPI1, A, 12, B, 22, A, 20), + PINGROUP(DTC, RSVD, RSVD, VI, RSVD, A, 13, B, 26, A, 22), + PINGROUP(DTD, RSVD, SDIO2, VI, RSVD, A, 14, B, 28, A, 24), + PINGROUP(DTE, RSVD, RSVD, VI, SPI1, A, 15, B, 30, A, 26), + PINGROUP(DTF, I2C3, RSVD, VI, RSVD, D, 12, G, 30, A, 28), + PINGROUP(GMA, UARTE, SPI3, GMI, SDIO4, A, 28, B, 0, E, 20), + PINGROUP(GMB, IDE, NAND, GMI, GMI_INT, B, 29, C, 28, E, 22), + PINGROUP(GMC, UARTD, SPI4, GMI, SFLASH, A, 29, B, 2, E, 24), + PINGROUP(GMD, RSVD, NAND, GMI, SFLASH, B, 30, C, 30, E, 26), + PINGROUP(GME, RSVD, DAP5, GMI, SDIO4, B, 0, D, 0, C, 24), + PINGROUP(GPU, PWM, UARTA, GMI, RSVD, A, 16, D, 4, B, 20), + PINGROUP(GPU7, RTCK, RSVD, RSVD, RSVD, D, 11, G, 28, B, 6), + PINGROUP(GPV, PCIE, RSVD, RSVD, RSVD, A, 17, D, 2, A, 30), + PINGROUP(HDINT, HDMI, RSVD, RSVD, RSVD, C, 23, B, 4, D, 22), + PINGROUP(I2CP, I2C, RSVD, RSVD, RSVD, A, 18, C, 8, B, 2), + PINGROUP(IRRX, UARTA, UARTB, GMI, SPI4, A, 20, C, 18, C, 22), + PINGROUP(IRTX, UARTA, UARTB, GMI, SPI4, A, 19, C, 16, C, 20), + PINGROUP(KBCA, KBC, NAND, SDIO2, EMC_TEST0_DLL, A, 22, C, 10, B, 8), + PINGROUP(KBCB, KBC, NAND, SDIO2, MIO, A, 21, C, 12, B, 10), + PINGROUP(KBCC, KBC, NAND, TRACE, EMC_TEST1_DLL, B, 26, C, 14, B, 12), + PINGROUP(KBCD, KBC, NAND, SDIO2, MIO, D, 10, G, 26, B, 14), + PINGROUP(KBCE, KBC, NAND, OWR, RSVD, A, 26, A, 28, E, 2), + PINGROUP(KBCF, KBC, NAND, TRACE, MIO, A, 27, A, 26, E, 0), + PINGROUP(LCSN, DISPLAYA, DISPLAYB, SPI3, RSVD, C, 31, E, 12, D, 20), + PINGROUP(LD0, DISPLAYA, DISPLAYB, XIO, RSVD, C, 0, F, 0, D, 12), + PINGROUP(LD1, DISPLAYA, DISPLAYB, XIO, RSVD, C, 1, F, 2, D, 12), + PINGROUP(LD10, DISPLAYA, DISPLAYB, XIO, RSVD, C, 10, F, 20, D, 12), + PINGROUP(LD11, DISPLAYA, DISPLAYB, XIO, RSVD, C, 11, F, 22, D, 12), + PINGROUP(LD12, DISPLAYA, DISPLAYB, XIO, RSVD, C, 12, F, 24, D, 12), + PINGROUP(LD13, DISPLAYA, DISPLAYB, XIO, RSVD, C, 13, F, 26, D, 12), + PINGROUP(LD14, DISPLAYA, DISPLAYB, XIO, RSVD, C, 14, F, 28, D, 12), + PINGROUP(LD15, DISPLAYA, DISPLAYB, XIO, RSVD, C, 15, F, 30, D, 12), + PINGROUP(LD16, DISPLAYA, DISPLAYB, XIO, RSVD, C, 16, G, 0, D, 12), + PINGROUP(LD17, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 17, G, 2, D, 12), + PINGROUP(LD2, DISPLAYA, DISPLAYB, XIO, RSVD, C, 2, F, 4, D, 12), + PINGROUP(LD3, DISPLAYA, DISPLAYB, XIO, RSVD, C, 3, F, 6, D, 12), + PINGROUP(LD4, DISPLAYA, DISPLAYB, XIO, RSVD, C, 4, F, 8, D, 12), + PINGROUP(LD5, DISPLAYA, DISPLAYB, XIO, RSVD, C, 5, F, 10, D, 12), + PINGROUP(LD6, DISPLAYA, DISPLAYB, XIO, RSVD, C, 6, F, 12, D, 12), + PINGROUP(LD7, DISPLAYA, DISPLAYB, XIO, RSVD, C, 7, F, 14, D, 12), + PINGROUP(LD8, DISPLAYA, DISPLAYB, XIO, RSVD, C, 8, F, 16, D, 12), + PINGROUP(LD9, DISPLAYA, DISPLAYB, XIO, RSVD, C, 9, F, 18, D, 12), + PINGROUP(LDC, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 30, E, 14, D, 20), + PINGROUP(LDI, DISPLAYA, DISPLAYB, RSVD, RSVD, D, 6, G, 16, D, 18), + PINGROUP(LHP0, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 18, G, 10, D, 16), + PINGROUP(LHP1, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 19, G, 4, D, 14), + PINGROUP(LHP2, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 20, G, 6, D, 14), + PINGROUP(LHS, DISPLAYA, DISPLAYB, XIO, RSVD, D, 7, E, 22, D, 22), + PINGROUP(LM0, DISPLAYA, DISPLAYB, SPI3, RSVD, C, 24, E, 26, D, 22), + PINGROUP(LM1, DISPLAYA, DISPLAYB, RSVD, CRT, C, 25, E, 28, D, 22), + PINGROUP(LPP, DISPLAYA, DISPLAYB, RSVD, RSVD, D, 8, G, 14, D, 18), + PINGROUP(LPW0, DISPLAYA, DISPLAYB, SPI3, HDMI, D, 3, E, 0, D, 20), + PINGROUP(LPW1, DISPLAYA, DISPLAYB, RSVD, RSVD, D, 4, E, 2, D, 20), + PINGROUP(LPW2, DISPLAYA, DISPLAYB, SPI3, HDMI, D, 5, E, 4, D, 20), + PINGROUP(LSC0, DISPLAYA, DISPLAYB, XIO, RSVD, C, 27, E, 18, D, 22), + PINGROUP(LSC1, DISPLAYA, DISPLAYB, SPI3, HDMI, C, 28, E, 20, D, 20), + PINGROUP(LSCK, DISPLAYA, DISPLAYB, SPI3, HDMI, C, 29, E, 16, D, 20), + PINGROUP(LSDA, DISPLAYA, DISPLAYB, SPI3, HDMI, D, 1, E, 8, D, 20), + PINGROUP(LSDI, DISPLAYA, DISPLAYB, SPI3, RSVD, D, 2, E, 6, D, 20), + PINGROUP(LSPI, DISPLAYA, DISPLAYB, XIO, HDMI, D, 0, E, 10, D, 22), + PINGROUP(LVP0, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 21, E, 30, D, 22), + PINGROUP(LVP1, DISPLAYA, DISPLAYB, RSVD, RSVD, C, 22, G, 8, D, 16), + PINGROUP(LVS, DISPLAYA, DISPLAYB, XIO, RSVD, C, 26, E, 24, D, 22), + PINGROUP(OWC, OWR, RSVD, RSVD, RSVD, A, 31, B, 8, E, 30), + PINGROUP(PMC, PWR_ON, PWR_INTR, RSVD, RSVD, A, 23, G, 18, N, -1), + PINGROUP(PTA, I2C2, HDMI, GMI, RSVD, A, 24, G, 22, B, 4), + PINGROUP(RM, I2C, RSVD, RSVD, RSVD, A, 25, A, 14, B, 0), + PINGROUP(SDB, UARTA, PWM, SDIO3, SPI2, D, 15, D, 10, N, -1), + PINGROUP(SDC, PWM, TWC, SDIO3, SPI3, B, 1, D, 12, D, 28), + PINGROUP(SDD, UARTA, PWM, SDIO3, SPI3, B, 2, D, 14, D, 30), + PINGROUP(SDIO1, SDIO1, RSVD, UARTE, UARTA, A, 30, A, 30, E, 18), + PINGROUP(SLXA, PCIE, SPI4, SDIO3, SPI2, B, 3, B, 6, B, 22), + PINGROUP(SLXC, SPDIF, SPI4, SDIO3, SPI2, B, 5, B, 10, B, 26), + PINGROUP(SLXD, SPDIF, SPI4, SDIO3, SPI2, B, 6, B, 12, B, 28), + PINGROUP(SLXK, PCIE, SPI4, SDIO3, SPI2, B, 7, B, 14, B, 30), + PINGROUP(SPDI, SPDIF, RSVD, I2C, SDIO2, B, 8, D, 8, B, 16), + PINGROUP(SPDO, SPDIF, RSVD, I2C, SDIO2, B, 9, D, 6, B, 18), + PINGROUP(SPIA, SPI1, SPI2, SPI3, GMI, B, 10, D, 30, C, 4), + PINGROUP(SPIB, SPI1, SPI2, SPI3, GMI, B, 11, D, 28, C, 6), + PINGROUP(SPIC, SPI1, SPI2, SPI3, GMI, B, 12, D, 26, C, 8), + PINGROUP(SPID, SPI2, SPI1, SPI2_ALT, GMI, B, 13, D, 24, C, 10), + PINGROUP(SPIE, SPI2, SPI1, SPI2_ALT, GMI, B, 14, D, 22, C, 12), + PINGROUP(SPIF, SPI3, SPI1, SPI2, RSVD, B, 15, D, 20, C, 14), + PINGROUP(SPIG, SPI3, SPI2, SPI2_ALT, I2C, B, 16, D, 18, C, 16), + PINGROUP(SPIH, SPI3, SPI2, SPI2_ALT, I2C, B, 17, D, 16, C, 18), + PINGROUP(UAA, SPI3, MIPI_HS, UARTA, ULPI, B, 18, A, 0, D, 0), + PINGROUP(UAB, SPI2, MIPI_HS, UARTA, ULPI, B, 19, A, 2, D, 2), + PINGROUP(UAC, OWR, RSVD, RSVD, RSVD, B, 20, A, 4, D, 4), + PINGROUP(UAD, IRDA, SPDIF, UARTA, SPI4, B, 21, A, 6, D, 6), + PINGROUP(UCA, UARTC, RSVD, GMI, RSVD, B, 22, B, 16, D, 8), + PINGROUP(UCB, UARTC, PWM, GMI, RSVD, B, 23, B, 18, D, 10), + PINGROUP(UDA, SPI1, RSVD, UARTD, ULPI, D, 13, A, 8, E, 16), + /* these pin groups only have pullup and pull down control */ + PINGROUP(CK32, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 14), + PINGROUP(DDRC, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, D, 26), + PINGROUP(PMCA, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 4), + PINGROUP(PMCB, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 6), + PINGROUP(PMCC, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 8), + PINGROUP(PMCD, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 10), + PINGROUP(PMCE, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, E, 12), + PINGROUP(XM2C, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, C, 30), + PINGROUP(XM2D, RSVD, RSVD, RSVD, RSVD, N, -1, N, -1, C, 28), +}; + +static char *tegra_mux_names[TEGRA_MAX_MUX] = { + [TEGRA_MUX_AHB_CLK] = "AHB_CLK", + [TEGRA_MUX_APB_CLK] = "APB_CLK", + [TEGRA_MUX_AUDIO_SYNC] = "AUDIO_SYNC", + [TEGRA_MUX_CRT] = "CRT", + [TEGRA_MUX_DAP1] = "DAP1", + [TEGRA_MUX_DAP2] = "DAP2", + [TEGRA_MUX_DAP3] = "DAP3", + [TEGRA_MUX_DAP4] = "DAP4", + [TEGRA_MUX_DAP5] = "DAP5", + [TEGRA_MUX_DISPLAYA] = "DISPLAYA", + [TEGRA_MUX_DISPLAYB] = "DISPLAYB", + [TEGRA_MUX_EMC_TEST0_DLL] = "EMC_TEST0_DLL", + [TEGRA_MUX_EMC_TEST1_DLL] = "EMC_TEST1_DLL", + [TEGRA_MUX_GMI] = "GMI", + [TEGRA_MUX_GMI_INT] = "GMI_INT", + [TEGRA_MUX_HDMI] = "HDMI", + [TEGRA_MUX_I2C] = "I2C", + [TEGRA_MUX_I2C2] = "I2C2", + [TEGRA_MUX_I2C3] = "I2C3", + [TEGRA_MUX_IDE] = "IDE", + [TEGRA_MUX_IRDA] = "IRDA", + [TEGRA_MUX_KBC] = "KBC", + [TEGRA_MUX_MIO] = "MIO", + [TEGRA_MUX_MIPI_HS] = "MIPI_HS", + [TEGRA_MUX_NAND] = "NAND", + [TEGRA_MUX_OSC] = "OSC", + [TEGRA_MUX_OWR] = "OWR", + [TEGRA_MUX_PCIE] = "PCIE", + [TEGRA_MUX_PLLA_OUT] = "PLLA_OUT", + [TEGRA_MUX_PLLC_OUT1] = "PLLC_OUT1", + [TEGRA_MUX_PLLM_OUT1] = "PLLM_OUT1", + [TEGRA_MUX_PLLP_OUT2] = "PLLP_OUT2", + [TEGRA_MUX_PLLP_OUT3] = "PLLP_OUT3", + [TEGRA_MUX_PLLP_OUT4] = "PLLP_OUT4", + [TEGRA_MUX_PWM] = "PWM", + [TEGRA_MUX_PWR_INTR] = "PWR_INTR", + [TEGRA_MUX_PWR_ON] = "PWR_ON", + [TEGRA_MUX_RTCK] = "RTCK", + [TEGRA_MUX_SDIO1] = "SDIO1", + [TEGRA_MUX_SDIO2] = "SDIO2", + [TEGRA_MUX_SDIO3] = "SDIO3", + [TEGRA_MUX_SDIO4] = "SDIO4", + [TEGRA_MUX_SFLASH] = "SFLASH", + [TEGRA_MUX_SPDIF] = "SPDIF", + [TEGRA_MUX_SPI1] = "SPI1", + [TEGRA_MUX_SPI2] = "SPI2", + [TEGRA_MUX_SPI2_ALT] = "SPI2_ALT", + [TEGRA_MUX_SPI3] = "SPI3", + [TEGRA_MUX_SPI4] = "SPI4", + [TEGRA_MUX_TRACE] = "TRACE", + [TEGRA_MUX_TWC] = "TWC", + [TEGRA_MUX_UARTA] = "UARTA", + [TEGRA_MUX_UARTB] = "UARTB", + [TEGRA_MUX_UARTC] = "UARTC", + [TEGRA_MUX_UARTD] = "UARTD", + [TEGRA_MUX_UARTE] = "UARTE", + [TEGRA_MUX_ULPI] = "ULPI", + [TEGRA_MUX_VI] = "VI", + [TEGRA_MUX_VI_SENSOR_CLK] = "VI_SENSOR_CLK", + [TEGRA_MUX_XIO] = "XIO", +}; + +struct tegra_drive_pingroup_desc { + const char *name; + s16 reg; +}; + +#define DRIVE_PINGROUP(pg_name, r) \ + [TEGRA_DRIVE_PINGROUP_ ## pg_name] = { \ + .name = #pg_name, \ + .reg = r \ + } + +static const struct tegra_drive_pingroup_desc drive_pingroups[TEGRA_MAX_PINGROUP] = { + DRIVE_PINGROUP(AO1, 0x868), + DRIVE_PINGROUP(AO2, 0x86c), + DRIVE_PINGROUP(AT1, 0x870), + DRIVE_PINGROUP(AT2, 0x874), + DRIVE_PINGROUP(CDEV1, 0x878), + DRIVE_PINGROUP(CDEV2, 0x87c), + DRIVE_PINGROUP(CSUS, 0x880), + DRIVE_PINGROUP(DAP1, 0x884), + DRIVE_PINGROUP(DAP2, 0x888), + DRIVE_PINGROUP(DAP3, 0x88c), + DRIVE_PINGROUP(DAP4, 0x890), + DRIVE_PINGROUP(DBG, 0x894), + DRIVE_PINGROUP(LCD1, 0x898), + DRIVE_PINGROUP(LCD2, 0x89c), + DRIVE_PINGROUP(SDMMC2, 0x8a0), + DRIVE_PINGROUP(SDMMC3, 0x8a4), + DRIVE_PINGROUP(SPI, 0x8a8), + DRIVE_PINGROUP(UAA, 0x8ac), + DRIVE_PINGROUP(UAB, 0x8b0), + DRIVE_PINGROUP(UART2, 0x8b4), + DRIVE_PINGROUP(UART3, 0x8b8), + DRIVE_PINGROUP(VI1, 0x8bc), + DRIVE_PINGROUP(VI2, 0x8c0), + DRIVE_PINGROUP(XM2A, 0x8c4), + DRIVE_PINGROUP(XM2C, 0x8c8), + DRIVE_PINGROUP(XM2D, 0x8cc), + DRIVE_PINGROUP(XM2CLK, 0x8d0), + DRIVE_PINGROUP(MEMCOMP, 0x8d4), +}; + +static const char *tegra_drive_names[TEGRA_MAX_DRIVE] = { + [TEGRA_DRIVE_DIV_8] = "DIV_8", + [TEGRA_DRIVE_DIV_4] = "DIV_4", + [TEGRA_DRIVE_DIV_2] = "DIV_2", + [TEGRA_DRIVE_DIV_1] = "DIV_1", +}; + +static const char *tegra_slew_names[TEGRA_MAX_SLEW] = { + [TEGRA_SLEW_FASTEST] = "FASTEST", + [TEGRA_SLEW_FAST] = "FAST", + [TEGRA_SLEW_SLOW] = "SLOW", + [TEGRA_SLEW_SLOWEST] = "SLOWEST", +}; + +static DEFINE_SPINLOCK(mux_lock); + +static const char *pingroup_name(enum tegra_pingroup pg) +{ + if (pg < 0 || pg >= TEGRA_MAX_PINGROUP) + return "<UNKNOWN>"; + + return pingroups[pg].name; +} + +static const char *func_name(enum tegra_mux_func func) +{ + if (func == TEGRA_MUX_RSVD1) + return "RSVD1"; + + if (func == TEGRA_MUX_RSVD2) + return "RSVD2"; + + if (func == TEGRA_MUX_RSVD3) + return "RSVD3"; + + if (func == TEGRA_MUX_RSVD4) + return "RSVD4"; + + if (func == TEGRA_MUX_NONE) + return "NONE"; + + if (func < 0 || func >= TEGRA_MAX_MUX) + return "<UNKNOWN>"; + + return tegra_mux_names[func]; +} + + +static const char *tri_name(unsigned long val) +{ + return val ? "TRISTATE" : "NORMAL"; +} + +static const char *pupd_name(unsigned long val) +{ + switch (val) { + case 0: + return "NORMAL"; + + case 1: + return "PULL_DOWN"; + + case 2: + return "PULL_UP"; + + default: + return "RSVD"; + } +} + + +static inline unsigned long pg_readl(unsigned long offset) +{ + return readl(IO_TO_VIRT(TEGRA_APB_MISC_BASE + offset)); +} + +static inline void pg_writel(unsigned long value, unsigned long offset) +{ + writel(value, IO_TO_VIRT(TEGRA_APB_MISC_BASE + offset)); +} + +int tegra_pinmux_set_func(enum tegra_pingroup pg, enum tegra_mux_func func) +{ + int mux = -1; + int i; + unsigned long reg; + unsigned long flags; + + if (pg < 0 || pg >= TEGRA_MAX_PINGROUP) + return -ERANGE; + + if (pingroups[pg].mux_reg == REG_N) + return -EINVAL; + + if (func < 0) + return -ERANGE; + + if (func & TEGRA_MUX_RSVD) { + mux = func & 0x3; + } else { + for (i = 0; i < 4; i++) { + if (pingroups[pg].funcs[i] == func) { + mux = i; + break; + } + } + } + + if (mux < 0) + return -EINVAL; + + spin_lock_irqsave(&mux_lock, flags); + + reg = pg_readl(TEGRA_PP_MUX_CTL(pingroups[pg].mux_reg)); + reg &= ~(0x3 << pingroups[pg].mux_bit); + reg |= mux << pingroups[pg].mux_bit; + pg_writel(reg, TEGRA_PP_MUX_CTL(pingroups[pg].mux_reg)); + + spin_unlock_irqrestore(&mux_lock, flags); + + return 0; +} + +int tegra_pinmux_set_tristate(enum tegra_pingroup pg, + enum tegra_tristate tristate) +{ + unsigned long reg; + unsigned long flags; + + if (pg < 0 || pg >= TEGRA_MAX_PINGROUP) + return -ERANGE; + + if (pingroups[pg].tri_reg == REG_N) + return -EINVAL; + + spin_lock_irqsave(&mux_lock, flags); + + reg = pg_readl(TEGRA_TRI_STATE(pingroups[pg].tri_reg)); + reg &= ~(0x1 << pingroups[pg].tri_bit); + if (tristate) + reg |= 1 << pingroups[pg].tri_bit; + pg_writel(reg, TEGRA_TRI_STATE(pingroups[pg].tri_reg)); + + spin_unlock_irqrestore(&mux_lock, flags); + + return 0; +} + +int tegra_pinmux_set_pullupdown(enum tegra_pingroup pg, + enum tegra_pullupdown pupd) +{ + unsigned long reg; + unsigned long flags; + + if (pg < 0 || pg >= TEGRA_MAX_PINGROUP) + return -ERANGE; + + if (pingroups[pg].pupd_reg == REG_N) + return -EINVAL; + + if (pupd != TEGRA_PUPD_NORMAL && + pupd != TEGRA_PUPD_PULL_DOWN && + pupd != TEGRA_PUPD_PULL_UP) + return -EINVAL; + + + spin_lock_irqsave(&mux_lock, flags); + + reg = pg_readl(TEGRA_PP_PU_PD(pingroups[pg].pupd_reg)); + reg &= ~(0x3 << pingroups[pg].pupd_bit); + reg |= pupd << pingroups[pg].pupd_bit; + pg_writel(reg, TEGRA_PP_PU_PD(pingroups[pg].pupd_reg)); + + spin_unlock_irqrestore(&mux_lock, flags); + + return 0; +} + +void tegra_pinmux_config_pingroup(enum tegra_pingroup pingroup, + enum tegra_mux_func func, + enum tegra_pullupdown pupd, + enum tegra_tristate tristate) +{ + int err; + + if (pingroups[pingroup].mux_reg != REG_N) { + err = tegra_pinmux_set_func(pingroup, func); + if (err < 0) + pr_err("pinmux: can't set pingroup %s func to %s: %d\n", + pingroup_name(pingroup), func_name(func), err); + } + + if (pingroups[pingroup].pupd_reg != REG_N) { + err = tegra_pinmux_set_pullupdown(pingroup, pupd); + if (err < 0) + pr_err("pinmux: can't set pingroup %s pullupdown to %s: %d\n", + pingroup_name(pingroup), pupd_name(pupd), err); + } + + if (pingroups[pingroup].tri_reg != REG_N) { + err = tegra_pinmux_set_tristate(pingroup, tristate); + if (err < 0) + pr_err("pinmux: can't set pingroup %s tristate to %s: %d\n", + pingroup_name(pingroup), tri_name(func), err); + } +} + + + +void tegra_pinmux_config_table(struct tegra_pingroup_config *config, int len) +{ + int i; + + for (i = 0; i < len; i++) + tegra_pinmux_config_pingroup(config[i].pingroup, + config[i].func, + config[i].pupd, + config[i].tristate); +} + +static const char *drive_pinmux_name(enum tegra_drive_pingroup pg) +{ + if (pg < 0 || pg >= TEGRA_MAX_DRIVE_PINGROUP) + return "<UNKNOWN>"; + + return drive_pingroups[pg].name; +} + +static const char *enable_name(unsigned long val) +{ + return val ? "ENABLE" : "DISABLE"; +} + +static const char *drive_name(unsigned long val) +{ + if (val >= TEGRA_MAX_DRIVE) + return "<UNKNOWN>"; + + return tegra_drive_names[val]; +} + +static const char *slew_name(unsigned long val) +{ + if (val >= TEGRA_MAX_SLEW) + return "<UNKNOWN>"; + + return tegra_slew_names[val]; +} + +static int tegra_drive_pinmux_set_hsm(enum tegra_drive_pingroup pg, + enum tegra_hsm hsm) +{ + unsigned long flags; + u32 reg; + if (pg < 0 || pg >= TEGRA_MAX_DRIVE_PINGROUP) + return -ERANGE; + + if (hsm != TEGRA_HSM_ENABLE && hsm != TEGRA_HSM_DISABLE) + return -EINVAL; + + spin_lock_irqsave(&mux_lock, flags); + + reg = pg_readl(drive_pingroups[pg].reg); + if (hsm == TEGRA_HSM_ENABLE) + reg |= (1 << 2); + else + reg &= ~(1 << 2); + pg_writel(reg, drive_pingroups[pg].reg); + + spin_unlock_irqrestore(&mux_lock, flags); + + return 0; +} + +static int tegra_drive_pinmux_set_schmitt(enum tegra_drive_pingroup pg, + enum tegra_schmitt schmitt) +{ + unsigned long flags; + u32 reg; + if (pg < 0 || pg >= TEGRA_MAX_DRIVE_PINGROUP) + return -ERANGE; + + if (schmitt != TEGRA_SCHMITT_ENABLE && schmitt != TEGRA_SCHMITT_DISABLE) + return -EINVAL; + + spin_lock_irqsave(&mux_lock, flags); + + reg = pg_readl(drive_pingroups[pg].reg); + if (schmitt == TEGRA_SCHMITT_ENABLE) + reg |= (1 << 3); + else + reg &= ~(1 << 3); + pg_writel(reg, drive_pingroups[pg].reg); + + spin_unlock_irqrestore(&mux_lock, flags); + + return 0; +} + +static int tegra_drive_pinmux_set_drive(enum tegra_drive_pingroup pg, + enum tegra_drive drive) +{ + unsigned long flags; + u32 reg; + if (pg < 0 || pg >= TEGRA_MAX_DRIVE_PINGROUP) + return -ERANGE; + + if (drive < 0 || drive >= TEGRA_MAX_DRIVE) + return -EINVAL; + + spin_lock_irqsave(&mux_lock, flags); + + reg = pg_readl(drive_pingroups[pg].reg); + reg &= ~(0x3 << 4); + reg |= drive << 4; + pg_writel(reg, drive_pingroups[pg].reg); + + spin_unlock_irqrestore(&mux_lock, flags); + + return 0; +} + +static int tegra_drive_pinmux_set_pull_down(enum tegra_drive_pingroup pg, + enum tegra_pull_strength pull_down) +{ + unsigned long flags; + u32 reg; + if (pg < 0 || pg >= TEGRA_MAX_DRIVE_PINGROUP) + return -ERANGE; + + if (pull_down < 0 || pull_down >= TEGRA_MAX_PULL) + return -EINVAL; + + spin_lock_irqsave(&mux_lock, flags); + + reg = pg_readl(drive_pingroups[pg].reg); + reg &= ~(0x1f << 12); + reg |= pull_down << 12; + pg_writel(reg, drive_pingroups[pg].reg); + + spin_unlock_irqrestore(&mux_lock, flags); + + return 0; +} + +static int tegra_drive_pinmux_set_pull_up(enum tegra_drive_pingroup pg, + enum tegra_pull_strength pull_up) +{ + unsigned long flags; + u32 reg; + if (pg < 0 || pg >= TEGRA_MAX_DRIVE_PINGROUP) + return -ERANGE; + + if (pull_up < 0 || pull_up >= TEGRA_MAX_PULL) + return -EINVAL; + + spin_lock_irqsave(&mux_lock, flags); + + reg = pg_readl(drive_pingroups[pg].reg); + reg &= ~(0x1f << 12); + reg |= pull_up << 12; + pg_writel(reg, drive_pingroups[pg].reg); + + spin_unlock_irqrestore(&mux_lock, flags); + + return 0; +} + +static int tegra_drive_pinmux_set_slew_rising(enum tegra_drive_pingroup pg, + enum tegra_slew slew_rising) +{ + unsigned long flags; + u32 reg; + if (pg < 0 || pg >= TEGRA_MAX_DRIVE_PINGROUP) + return -ERANGE; + + if (slew_rising < 0 || slew_rising >= TEGRA_MAX_SLEW) + return -EINVAL; + + spin_lock_irqsave(&mux_lock, flags); + + reg = pg_readl(drive_pingroups[pg].reg); + reg &= ~(0x3 << 28); + reg |= slew_rising << 28; + pg_writel(reg, drive_pingroups[pg].reg); + + spin_unlock_irqrestore(&mux_lock, flags); + + return 0; +} + +static int tegra_drive_pinmux_set_slew_falling(enum tegra_drive_pingroup pg, + enum tegra_slew slew_falling) +{ + unsigned long flags; + u32 reg; + if (pg < 0 || pg >= TEGRA_MAX_DRIVE_PINGROUP) + return -ERANGE; + + if (slew_falling < 0 || slew_falling >= TEGRA_MAX_SLEW) + return -EINVAL; + + spin_lock_irqsave(&mux_lock, flags); + + reg = pg_readl(drive_pingroups[pg].reg); + reg &= ~(0x3 << 30); + reg |= slew_falling << 30; + pg_writel(reg, drive_pingroups[pg].reg); + + spin_unlock_irqrestore(&mux_lock, flags); + + return 0; +} + +static void tegra_drive_pinmux_config_pingroup(enum tegra_drive_pingroup pingroup, + enum tegra_hsm hsm, + enum tegra_schmitt schmitt, + enum tegra_drive drive, + enum tegra_pull_strength pull_down, + enum tegra_pull_strength pull_up, + enum tegra_slew slew_rising, + enum tegra_slew slew_falling) +{ + int err; + + err = tegra_drive_pinmux_set_hsm(pingroup, hsm); + if (err < 0) + pr_err("pinmux: can't set pingroup %s hsm to %s: %d\n", + drive_pinmux_name(pingroup), + enable_name(hsm), err); + + err = tegra_drive_pinmux_set_schmitt(pingroup, schmitt); + if (err < 0) + pr_err("pinmux: can't set pingroup %s schmitt to %s: %d\n", + drive_pinmux_name(pingroup), + enable_name(schmitt), err); + + err = tegra_drive_pinmux_set_drive(pingroup, drive); + if (err < 0) + pr_err("pinmux: can't set pingroup %s drive to %s: %d\n", + drive_pinmux_name(pingroup), + drive_name(drive), err); + + err = tegra_drive_pinmux_set_pull_down(pingroup, pull_down); + if (err < 0) + pr_err("pinmux: can't set pingroup %s pull down to %d: %d\n", + drive_pinmux_name(pingroup), + pull_down, err); + + err = tegra_drive_pinmux_set_pull_up(pingroup, pull_up); + if (err < 0) + pr_err("pinmux: can't set pingroup %s pull up to %d: %d\n", + drive_pinmux_name(pingroup), + pull_up, err); + + err = tegra_drive_pinmux_set_slew_rising(pingroup, slew_rising); + if (err < 0) + pr_err("pinmux: can't set pingroup %s rising slew to %s: %d\n", + drive_pinmux_name(pingroup), + slew_name(slew_rising), err); + + err = tegra_drive_pinmux_set_slew_falling(pingroup, slew_falling); + if (err < 0) + pr_err("pinmux: can't set pingroup %s falling slew to %s: %d\n", + drive_pinmux_name(pingroup), + slew_name(slew_falling), err); +} + +void tegra_drive_pinmux_config_table(struct tegra_drive_pingroup_config *config, + int len) +{ + int i; + + for (i = 0; i < len; i++) + tegra_drive_pinmux_config_pingroup(config[i].pingroup, + config[i].hsm, + config[i].schmitt, + config[i].drive, + config[i].pull_down, + config[i].pull_up, + config[i].slew_rising, + config[i].slew_falling); +} + + +#ifdef CONFIG_DEBUG_FS + +#include <linux/debugfs.h> +#include <linux/seq_file.h> + +static void dbg_pad_field(struct seq_file *s, int len) +{ + seq_putc(s, ','); + + while (len-- > -1) + seq_putc(s, ' '); +} + +static int dbg_pinmux_show(struct seq_file *s, void *unused) +{ + int i; + int len; + + for (i = 0; i < TEGRA_MAX_PINGROUP; i++) { + unsigned long tri; + unsigned long mux; + unsigned long pupd; + + seq_printf(s, "\t{TEGRA_PINGROUP_%s", pingroups[i].name); + len = strlen(pingroups[i].name); + dbg_pad_field(s, 5 - len); + + if (pingroups[i].mux_reg == REG_N) { + seq_printf(s, "TEGRA_MUX_NONE"); + len = strlen("NONE"); + } else { + mux = (pg_readl(TEGRA_PP_MUX_CTL(pingroups[i].mux_reg)) >> + pingroups[i].mux_bit) & 0x3; + if (pingroups[i].funcs[mux] == TEGRA_MUX_RSVD) { + seq_printf(s, "TEGRA_MUX_RSVD%1lu", mux+1); + len = 5; + } else { + seq_printf(s, "TEGRA_MUX_%s", + tegra_mux_names[pingroups[i].funcs[mux]]); + len = strlen(tegra_mux_names[pingroups[i].funcs[mux]]); + } + } + dbg_pad_field(s, 13-len); + + if (pingroups[i].mux_reg == REG_N) { + seq_printf(s, "TEGRA_PUPD_NORMAL"); + len = strlen("NORMAL"); + } else { + pupd = (pg_readl(TEGRA_PP_PU_PD(pingroups[i].pupd_reg)) >> + pingroups[i].pupd_bit) & 0x3; + seq_printf(s, "TEGRA_PUPD_%s", pupd_name(pupd)); + len = strlen(pupd_name(pupd)); + } + dbg_pad_field(s, 9 - len); + + if (pingroups[i].tri_reg == REG_N) { + seq_printf(s, "TEGRA_TRI_NORMAL"); + } else { + tri = (pg_readl(TEGRA_TRI_STATE(pingroups[i].tri_reg)) >> + pingroups[i].tri_bit) & 0x1; + + seq_printf(s, "TEGRA_TRI_%s", tri_name(tri)); + } + seq_printf(s, "},\n"); + } + return 0; +} + +static int dbg_pinmux_open(struct inode *inode, struct file *file) +{ + return single_open(file, dbg_pinmux_show, &inode->i_private); +} + +static const struct file_operations debug_fops = { + .open = dbg_pinmux_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int dbg_drive_pinmux_show(struct seq_file *s, void *unused) +{ + int i; + int len; + + for (i = 0; i < TEGRA_MAX_DRIVE_PINGROUP; i++) { + u32 reg; + + seq_printf(s, "\t{TEGRA_DRIVE_PINGROUP_%s", + drive_pingroups[i].name); + len = strlen(drive_pingroups[i].name); + dbg_pad_field(s, 7 - len); + + + reg = pg_readl(drive_pingroups[i].reg); + if (HSM_EN(reg)) { + seq_printf(s, "TEGRA_HSM_ENABLE"); + len = 16; + } else { + seq_printf(s, "TEGRA_HSM_DISABLE"); + len = 17; + } + dbg_pad_field(s, 17 - len); + + if (SCHMT_EN(reg)) { + seq_printf(s, "TEGRA_SCHMITT_ENABLE"); + len = 21; + } else { + seq_printf(s, "TEGRA_SCHMITT_DISABLE"); + len = 22; + } + dbg_pad_field(s, 22 - len); + + seq_printf(s, "TEGRA_DRIVE_%s", drive_name(LPMD(reg))); + len = strlen(drive_name(LPMD(reg))); + dbg_pad_field(s, 5 - len); + + seq_printf(s, "TEGRA_PULL_%d", DRVDN(reg)); + len = DRVDN(reg) < 10 ? 1 : 2; + dbg_pad_field(s, 2 - len); + + seq_printf(s, "TEGRA_PULL_%d", DRVUP(reg)); + len = DRVUP(reg) < 10 ? 1 : 2; + dbg_pad_field(s, 2 - len); + + seq_printf(s, "TEGRA_SLEW_%s", slew_name(SLWR(reg))); + len = strlen(slew_name(SLWR(reg))); + dbg_pad_field(s, 7 - len); + + seq_printf(s, "TEGRA_SLEW_%s", slew_name(SLWF(reg))); + + seq_printf(s, "},\n"); + } + return 0; +} + +static int dbg_drive_pinmux_open(struct inode *inode, struct file *file) +{ + return single_open(file, dbg_drive_pinmux_show, &inode->i_private); +} + +static const struct file_operations debug_drive_fops = { + .open = dbg_drive_pinmux_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init tegra_pinmux_debuginit(void) +{ + (void) debugfs_create_file("tegra_pinmux", S_IRUGO, + NULL, NULL, &debug_fops); + (void) debugfs_create_file("tegra_pinmux_drive", S_IRUGO, + NULL, NULL, &debug_drive_fops); + return 0; +} +late_initcall(tegra_pinmux_debuginit); +#endif diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c new file mode 100644 index 00000000000..1c0fd92cab3 --- /dev/null +++ b/arch/arm/mach-tegra/platsmp.c @@ -0,0 +1,156 @@ +/* + * linux/arch/arm/mach-tegra/platsmp.c + * + * Copyright (C) 2002 ARM Ltd. + * All Rights Reserved + * + * Copyright (C) 2009 Palm + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/jiffies.h> +#include <linux/smp.h> +#include <linux/io.h> + +#include <asm/cacheflush.h> +#include <mach/hardware.h> +#include <asm/mach-types.h> +#include <asm/localtimer.h> +#include <asm/smp_scu.h> + +#include <mach/iomap.h> + +extern void tegra_secondary_startup(void); + +static DEFINE_SPINLOCK(boot_lock); +static void __iomem *scu_base = IO_ADDRESS(TEGRA_ARM_PERIF_BASE); + +#define EVP_CPU_RESET_VECTOR \ + (IO_ADDRESS(TEGRA_EXCEPTION_VECTORS_BASE) + 0x100) +#define CLK_RST_CONTROLLER_CLK_CPU_CMPLX \ + (IO_ADDRESS(TEGRA_CLK_RESET_BASE) + 0x4c) +#define CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR \ + (IO_ADDRESS(TEGRA_CLK_RESET_BASE) + 0x344) + +void __cpuinit platform_secondary_init(unsigned int cpu) +{ + trace_hardirqs_off(); + + /* + * if any interrupts are already enabled for the primary + * core (e.g. timer irq), then they will not have been enabled + * for us: do so + */ + gic_cpu_init(0, IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x100); + + /* + * Synchronise with the boot thread. + */ + spin_lock(&boot_lock); + spin_unlock(&boot_lock); +} + +int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) +{ + unsigned long old_boot_vector; + unsigned long boot_vector; + unsigned long timeout; + u32 reg; + + /* + * set synchronisation state between this boot processor + * and the secondary one + */ + spin_lock(&boot_lock); + + + /* set the reset vector to point to the secondary_startup routine */ + + boot_vector = virt_to_phys(tegra_secondary_startup); + old_boot_vector = readl(EVP_CPU_RESET_VECTOR); + writel(boot_vector, EVP_CPU_RESET_VECTOR); + + /* enable cpu clock on cpu1 */ + reg = readl(CLK_RST_CONTROLLER_CLK_CPU_CMPLX); + writel(reg & ~(1<<9), CLK_RST_CONTROLLER_CLK_CPU_CMPLX); + + reg = (1<<13) | (1<<9) | (1<<5) | (1<<1); + writel(reg, CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR); + + smp_wmb(); + flush_cache_all(); + + /* unhalt the cpu */ + writel(0, IO_ADDRESS(TEGRA_FLOW_CTRL_BASE) + 0x14); + + timeout = jiffies + (1 * HZ); + while (time_before(jiffies, timeout)) { + if (readl(EVP_CPU_RESET_VECTOR) != boot_vector) + break; + udelay(10); + } + + /* put the old boot vector back */ + writel(old_boot_vector, EVP_CPU_RESET_VECTOR); + + /* + * now the secondary core is starting up let it run its + * calibrations, then wait for it to finish + */ + spin_unlock(&boot_lock); + + return 0; +} + +/* + * Initialise the CPU possible map early - this describes the CPUs + * which may be present or become present in the system. + */ +void __init smp_init_cpus(void) +{ + unsigned int i, ncores = scu_get_core_count(scu_base); + + for (i = 0; i < ncores; i++) + cpu_set(i, cpu_possible_map); +} + +void __init smp_prepare_cpus(unsigned int max_cpus) +{ + unsigned int ncores = scu_get_core_count(scu_base); + unsigned int cpu = smp_processor_id(); + int i; + + smp_store_cpu_info(cpu); + + /* + * are we trying to boot more cores than exist? + */ + if (max_cpus > ncores) + max_cpus = ncores; + + /* + * Initialise the present map, which describes the set of CPUs + * actually populated at the present time. + */ + for (i = 0; i < max_cpus; i++) + set_cpu_present(i, true); + + /* + * Initialise the SCU if there are more than one CPU and let + * them know where to start. Note that, on modern versions of + * MILO, the "poke" doesn't actually do anything until each + * individual core is sent a soft interrupt to get it out of + * WFI + */ + if (max_cpus > 1) { + percpu_timer_setup(); + scu_enable(scu_base); + } +} diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c new file mode 100644 index 00000000000..426163231ff --- /dev/null +++ b/arch/arm/mach-tegra/tegra2_clocks.c @@ -0,0 +1,1359 @@ +/* + * arch/arm/mach-tegra/tegra2_clocks.c + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/hrtimer.h> + +#include <asm/clkdev.h> + +#include <mach/iomap.h> + +#include "clock.h" + +#define RST_DEVICES 0x004 +#define RST_DEVICES_SET 0x300 +#define RST_DEVICES_CLR 0x304 + +#define CLK_OUT_ENB 0x010 +#define CLK_OUT_ENB_SET 0x320 +#define CLK_OUT_ENB_CLR 0x324 + +#define OSC_CTRL 0x50 +#define OSC_CTRL_OSC_FREQ_MASK (3<<30) +#define OSC_CTRL_OSC_FREQ_13MHZ (0<<30) +#define OSC_CTRL_OSC_FREQ_19_2MHZ (1<<30) +#define OSC_CTRL_OSC_FREQ_12MHZ (2<<30) +#define OSC_CTRL_OSC_FREQ_26MHZ (3<<30) + +#define OSC_FREQ_DET 0x58 +#define OSC_FREQ_DET_TRIG (1<<31) + +#define OSC_FREQ_DET_STATUS 0x5C +#define OSC_FREQ_DET_BUSY (1<<31) +#define OSC_FREQ_DET_CNT_MASK 0xFFFF + +#define PERIPH_CLK_SOURCE_MASK (3<<30) +#define PERIPH_CLK_SOURCE_SHIFT 30 +#define PERIPH_CLK_SOURCE_ENABLE (1<<28) +#define PERIPH_CLK_SOURCE_DIV_MASK 0xFF +#define PERIPH_CLK_SOURCE_DIV_SHIFT 0 + +#define PLL_BASE 0x0 +#define PLL_BASE_BYPASS (1<<31) +#define PLL_BASE_ENABLE (1<<30) +#define PLL_BASE_REF_ENABLE (1<<29) +#define PLL_BASE_OVERRIDE (1<<28) +#define PLL_BASE_LOCK (1<<27) +#define PLL_BASE_DIVP_MASK (0x7<<20) +#define PLL_BASE_DIVP_SHIFT 20 +#define PLL_BASE_DIVN_MASK (0x3FF<<8) +#define PLL_BASE_DIVN_SHIFT 8 +#define PLL_BASE_DIVM_MASK (0x1F) +#define PLL_BASE_DIVM_SHIFT 0 + +#define PLL_OUT_RATIO_MASK (0xFF<<8) +#define PLL_OUT_RATIO_SHIFT 8 +#define PLL_OUT_OVERRIDE (1<<2) +#define PLL_OUT_CLKEN (1<<1) +#define PLL_OUT_RESET_DISABLE (1<<0) + +#define PLL_MISC(c) (((c)->flags & PLL_ALT_MISC_REG) ? 0x4 : 0xc) +#define PLL_MISC_DCCON_SHIFT 20 +#define PLL_MISC_LOCK_ENABLE (1<<18) +#define PLL_MISC_CPCON_SHIFT 8 +#define PLL_MISC_CPCON_MASK (0xF<<PLL_MISC_CPCON_SHIFT) +#define PLL_MISC_LFCON_SHIFT 4 +#define PLL_MISC_LFCON_MASK (0xF<<PLL_MISC_LFCON_SHIFT) +#define PLL_MISC_VCOCON_SHIFT 0 +#define PLL_MISC_VCOCON_MASK (0xF<<PLL_MISC_VCOCON_SHIFT) + +#define PLLD_MISC_CLKENABLE (1<<30) +#define PLLD_MISC_DIV_RST (1<<23) +#define PLLD_MISC_DCCON_SHIFT 12 + +#define PERIPH_CLK_TO_ENB_REG(c) ((c->clk_num / 32) * 4) +#define PERIPH_CLK_TO_ENB_SET_REG(c) ((c->clk_num / 32) * 8) +#define PERIPH_CLK_TO_ENB_BIT(c) (1 << (c->clk_num % 32)) + +#define SUPER_CLK_MUX 0x00 +#define SUPER_STATE_SHIFT 28 +#define SUPER_STATE_MASK (0xF << SUPER_STATE_SHIFT) +#define SUPER_STATE_STANDBY (0x0 << SUPER_STATE_SHIFT) +#define SUPER_STATE_IDLE (0x1 << SUPER_STATE_SHIFT) +#define SUPER_STATE_RUN (0x2 << SUPER_STATE_SHIFT) +#define SUPER_STATE_IRQ (0x3 << SUPER_STATE_SHIFT) +#define SUPER_STATE_FIQ (0x4 << SUPER_STATE_SHIFT) +#define SUPER_SOURCE_MASK 0xF +#define SUPER_FIQ_SOURCE_SHIFT 12 +#define SUPER_IRQ_SOURCE_SHIFT 8 +#define SUPER_RUN_SOURCE_SHIFT 4 +#define SUPER_IDLE_SOURCE_SHIFT 0 + +#define SUPER_CLK_DIVIDER 0x04 + +#define BUS_CLK_DISABLE (1<<3) +#define BUS_CLK_DIV_MASK 0x3 + +static void __iomem *reg_clk_base = IO_ADDRESS(TEGRA_CLK_RESET_BASE); + +#define clk_writel(value, reg) \ + __raw_writel(value, (u32)reg_clk_base + (reg)) +#define clk_readl(reg) \ + __raw_readl((u32)reg_clk_base + (reg)) + +unsigned long clk_measure_input_freq(void) +{ + u32 clock_autodetect; + clk_writel(OSC_FREQ_DET_TRIG | 1, OSC_FREQ_DET); + do {} while (clk_readl(OSC_FREQ_DET_STATUS) & OSC_FREQ_DET_BUSY); + clock_autodetect = clk_readl(OSC_FREQ_DET_STATUS); + if (clock_autodetect >= 732 - 3 && clock_autodetect <= 732 + 3) { + return 12000000; + } else if (clock_autodetect >= 794 - 3 && clock_autodetect <= 794 + 3) { + return 13000000; + } else if (clock_autodetect >= 1172 - 3 && clock_autodetect <= 1172 + 3) { + return 19200000; + } else if (clock_autodetect >= 1587 - 3 && clock_autodetect <= 1587 + 3) { + return 26000000; + } else { + pr_err("%s: Unexpected clock autodetect value %d", __func__, clock_autodetect); + BUG(); + return 0; + } +} + +static int clk_div71_get_divider(struct clk *c, unsigned long rate) +{ + unsigned long divider_u71; + + divider_u71 = DIV_ROUND_UP(c->rate * 2, rate); + + if (divider_u71 - 2 > 255 || divider_u71 - 2 < 0) + return -EINVAL; + + return divider_u71 - 2; +} + +static unsigned long tegra2_clk_recalculate_rate(struct clk *c) +{ + unsigned long rate; + rate = c->parent->rate; + + if (c->mul != 0 && c->div != 0) + c->rate = rate * c->mul / c->div; + else + c->rate = rate; + return c->rate; +} + + +/* clk_m functions */ +static unsigned long tegra2_clk_m_autodetect_rate(struct clk *c) +{ + u32 auto_clock_control = clk_readl(OSC_CTRL) & ~OSC_CTRL_OSC_FREQ_MASK; + + c->rate = clk_measure_input_freq(); + switch (c->rate) { + case 12000000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_12MHZ; + break; + case 13000000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_13MHZ; + break; + case 19200000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_19_2MHZ; + break; + case 26000000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_26MHZ; + break; + default: + pr_err("%s: Unexpected clock rate %ld", __func__, c->rate); + BUG(); + } + clk_writel(auto_clock_control, OSC_CTRL); + return c->rate; +} + +static void tegra2_clk_m_init(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + tegra2_clk_m_autodetect_rate(c); +} + +static int tegra2_clk_m_enable(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + return 0; +} + +static void tegra2_clk_m_disable(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + BUG(); +} + +static struct clk_ops tegra_clk_m_ops = { + .init = tegra2_clk_m_init, + .enable = tegra2_clk_m_enable, + .disable = tegra2_clk_m_disable, +}; + +/* super clock functions */ +/* "super clocks" on tegra have two-stage muxes and a clock skipping + * super divider. We will ignore the clock skipping divider, since we + * can't lower the voltage when using the clock skip, but we can if we + * lower the PLL frequency. + */ +static void tegra2_super_clk_init(struct clk *c) +{ + u32 val; + int source; + int shift; + const struct clk_mux_sel *sel; + val = clk_readl(c->reg + SUPER_CLK_MUX); + c->state = ON; + BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && + ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); + shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? + SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; + source = (val >> shift) & SUPER_SOURCE_MASK; + for (sel = c->inputs; sel->input != NULL; sel++) { + if (sel->value == source) + break; + } + BUG_ON(sel->input == NULL); + c->parent = sel->input; + tegra2_clk_recalculate_rate(c); +} + +static int tegra2_super_clk_enable(struct clk *c) +{ + clk_writel(0, c->reg + SUPER_CLK_DIVIDER); + return 0; +} + +static void tegra2_super_clk_disable(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + + /* oops - don't disable the CPU clock! */ + BUG(); +} + +static int tegra2_super_clk_set_parent(struct clk *c, struct clk *p) +{ + u32 val; + const struct clk_mux_sel *sel; + int shift; + val = clk_readl(c->reg + SUPER_CLK_MUX);; + BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && + ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); + shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? + SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; + for (sel = c->inputs; sel->input != NULL; sel++) { + if (sel->input == p) { + clk_reparent(c, p); + val &= ~(SUPER_SOURCE_MASK << shift); + val |= sel->value << shift; + clk_writel(val, c->reg); + c->rate = c->parent->rate; + return 0; + } + } + return -EINVAL; +} + +static struct clk_ops tegra_super_ops = { + .init = tegra2_super_clk_init, + .enable = tegra2_super_clk_enable, + .disable = tegra2_super_clk_disable, + .set_parent = tegra2_super_clk_set_parent, + .recalculate_rate = tegra2_clk_recalculate_rate, +}; + +/* bus clock functions */ +static void tegra2_bus_clk_init(struct clk *c) +{ + u32 val = clk_readl(c->reg); + c->state = ((val >> c->reg_shift) & BUS_CLK_DISABLE) ? OFF : ON; + c->div = ((val >> c->reg_shift) & BUS_CLK_DIV_MASK) + 1; + c->mul = 1; + tegra2_clk_recalculate_rate(c); +} + +static int tegra2_bus_clk_enable(struct clk *c) +{ + u32 val = clk_readl(c->reg); + val &= ~(BUS_CLK_DISABLE << c->reg_shift); + clk_writel(val, c->reg); + return 0; +} + +static void tegra2_bus_clk_disable(struct clk *c) +{ + u32 val = clk_readl(c->reg); + val |= BUS_CLK_DISABLE << c->reg_shift; + clk_writel(val, c->reg); +} + +static int tegra2_bus_clk_set_rate(struct clk *c, unsigned long rate) +{ + u32 val = clk_readl(c->reg); + unsigned long parent_rate = c->parent->rate; + int i; + for (i = 1; i <= 4; i++) { + if (rate == parent_rate / i) { + val &= ~(BUS_CLK_DIV_MASK << c->reg_shift); + val |= (i - 1) << c->reg_shift; + clk_writel(val, c->reg); + c->div = i; + c->mul = 1; + return 0; + } + } + return -EINVAL; +} + +static struct clk_ops tegra_bus_ops = { + .init = tegra2_bus_clk_init, + .enable = tegra2_bus_clk_enable, + .disable = tegra2_bus_clk_disable, + .set_rate = tegra2_bus_clk_set_rate, + .recalculate_rate = tegra2_clk_recalculate_rate, +}; + +/* PLL Functions */ +static unsigned long tegra2_pll_clk_recalculate_rate(struct clk *c) +{ + u64 rate; + rate = c->parent->rate; + rate *= c->n; + do_div(rate, c->m); + if (c->p == 2) + rate >>= 1; + c->rate = rate; + return c->rate; +} + +static int tegra2_pll_clk_wait_for_lock(struct clk *c) +{ + ktime_t before; + + before = ktime_get(); + while (!(clk_readl(c->reg + PLL_BASE) & PLL_BASE_LOCK)) { + if (ktime_us_delta(ktime_get(), before) > 5000) { + pr_err("Timed out waiting for lock bit on pll %s", + c->name); + return -1; + } + } + + return 0; +} + +static void tegra2_pll_clk_init(struct clk *c) +{ + u32 val = clk_readl(c->reg + PLL_BASE); + + c->state = (val & PLL_BASE_ENABLE) ? ON : OFF; + + if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) { + pr_warning("Clock %s has unknown fixed frequency\n", c->name); + c->n = 1; + c->m = 0; + c->p = 1; + } else if (val & PLL_BASE_BYPASS) { + c->n = 1; + c->m = 1; + c->p = 1; + } else { + c->n = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT; + c->m = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT; + c->p = (val & PLL_BASE_DIVP_MASK) ? 2 : 1; + } + + val = clk_readl(c->reg + PLL_MISC(c)); + if (c->flags & PLL_HAS_CPCON) + c->cpcon = (val & PLL_MISC_CPCON_MASK) >> PLL_MISC_CPCON_SHIFT; + + tegra2_pll_clk_recalculate_rate(c); +} + +static int tegra2_pll_clk_enable(struct clk *c) +{ + u32 val; + pr_debug("%s on clock %s\n", __func__, c->name); + + val = clk_readl(c->reg + PLL_BASE); + val &= ~PLL_BASE_BYPASS; + val |= PLL_BASE_ENABLE; + clk_writel(val, c->reg + PLL_BASE); + + val = clk_readl(c->reg + PLL_MISC(c)); + val |= PLL_MISC_LOCK_ENABLE; + clk_writel(val, c->reg + PLL_MISC(c)); + + tegra2_pll_clk_wait_for_lock(c); + + return 0; +} + +static void tegra2_pll_clk_disable(struct clk *c) +{ + u32 val; + pr_debug("%s on clock %s\n", __func__, c->name); + + val = clk_readl(c->reg); + val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE); + clk_writel(val, c->reg); +} + +static int tegra2_pll_clk_set_rate(struct clk *c, unsigned long rate) +{ + u32 val; + unsigned long input_rate; + const struct clk_pll_table *sel; + + pr_debug("%s: %s %lu\n", __func__, c->name, rate); + BUG_ON(c->refcnt != 0); + + input_rate = c->parent->rate; + for (sel = c->pll_table; sel->input_rate != 0; sel++) { + if (sel->input_rate == input_rate && sel->output_rate == rate) { + c->n = sel->n; + c->m = sel->m; + c->p = sel->p; + c->cpcon = sel->cpcon; + + val = clk_readl(c->reg + PLL_BASE); + if (c->flags & PLL_FIXED) + val |= PLL_BASE_OVERRIDE; + val &= ~(PLL_BASE_DIVP_MASK | PLL_BASE_DIVN_MASK | + PLL_BASE_DIVM_MASK); + val |= (c->m << PLL_BASE_DIVM_SHIFT) | + (c->n << PLL_BASE_DIVN_SHIFT); + BUG_ON(c->p > 2); + if (c->p == 2) + val |= 1 << PLL_BASE_DIVP_SHIFT; + clk_writel(val, c->reg + PLL_BASE); + + if (c->flags & PLL_HAS_CPCON) { + val = c->cpcon << PLL_MISC_CPCON_SHIFT; + val |= PLL_MISC_LOCK_ENABLE; + clk_writel(val, c->reg + PLL_MISC(c)); + } + + if (c->state == ON) + tegra2_pll_clk_enable(c); + + c->rate = rate; + return 0; + } + } + return -EINVAL; +} + +static struct clk_ops tegra_pll_ops = { + .init = tegra2_pll_clk_init, + .enable = tegra2_pll_clk_enable, + .disable = tegra2_pll_clk_disable, + .set_rate = tegra2_pll_clk_set_rate, + .recalculate_rate = tegra2_pll_clk_recalculate_rate, +}; + +/* Clock divider ops */ +static void tegra2_pll_div_clk_init(struct clk *c) +{ + u32 val = clk_readl(c->reg); + u32 divu71; + val >>= c->reg_shift; + c->state = (val & PLL_OUT_CLKEN) ? ON : OFF; + if (!(val & PLL_OUT_RESET_DISABLE)) + c->state = OFF; + + if (c->flags & DIV_U71) { + divu71 = (val & PLL_OUT_RATIO_MASK) >> PLL_OUT_RATIO_SHIFT; + c->div = (divu71 + 2); + c->mul = 2; + } else if (c->flags & DIV_2) { + c->div = 2; + c->mul = 1; + } else { + c->div = 1; + c->mul = 1; + } + + tegra2_clk_recalculate_rate(c); +} + +static int tegra2_pll_div_clk_enable(struct clk *c) +{ + u32 val; + u32 new_val; + + pr_debug("%s: %s\n", __func__, c->name); + if (c->flags & DIV_U71) { + val = clk_readl(c->reg); + new_val = val >> c->reg_shift; + new_val &= 0xFFFF; + + new_val |= PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE; + + val &= ~(0xFFFF << c->reg_shift); + val |= new_val << c->reg_shift; + clk_writel(val, c->reg); + return 0; + } else if (c->flags & DIV_2) { + BUG_ON(!(c->flags & PLLD)); + val = clk_readl(c->reg); + val &= ~PLLD_MISC_DIV_RST; + clk_writel(val, c->reg); + return 0; + } + return -EINVAL; +} + +static void tegra2_pll_div_clk_disable(struct clk *c) +{ + u32 val; + u32 new_val; + + pr_debug("%s: %s\n", __func__, c->name); + if (c->flags & DIV_U71) { + val = clk_readl(c->reg); + new_val = val >> c->reg_shift; + new_val &= 0xFFFF; + + new_val &= ~(PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE); + + val &= ~(0xFFFF << c->reg_shift); + val |= new_val << c->reg_shift; + clk_writel(val, c->reg); + } else if (c->flags & DIV_2) { + BUG_ON(!(c->flags & PLLD)); + val = clk_readl(c->reg); + val |= PLLD_MISC_DIV_RST; + clk_writel(val, c->reg); + } +} + +static int tegra2_pll_div_clk_set_rate(struct clk *c, unsigned long rate) +{ + u32 val; + u32 new_val; + int divider_u71; + pr_debug("%s: %s %lu\n", __func__, c->name, rate); + if (c->flags & DIV_U71) { + divider_u71 = clk_div71_get_divider(c->parent, rate); + if (divider_u71 >= 0) { + val = clk_readl(c->reg); + new_val = val >> c->reg_shift; + new_val &= 0xFFFF; + if (c->flags & DIV_U71_FIXED) + new_val |= PLL_OUT_OVERRIDE; + new_val &= ~PLL_OUT_RATIO_MASK; + new_val |= divider_u71 << PLL_OUT_RATIO_SHIFT; + + val &= ~(0xFFFF << c->reg_shift); + val |= new_val << c->reg_shift; + clk_writel(val, c->reg); + c->div = divider_u71 + 2; + c->mul = 2; + tegra2_clk_recalculate_rate(c); + return 0; + } + } else if (c->flags & DIV_2) { + if (c->parent->rate == rate * 2) { + c->rate = rate; + return 0; + } + } + return -EINVAL; +} + + +static struct clk_ops tegra_pll_div_ops = { + .init = tegra2_pll_div_clk_init, + .enable = tegra2_pll_div_clk_enable, + .disable = tegra2_pll_div_clk_disable, + .set_rate = tegra2_pll_div_clk_set_rate, + .recalculate_rate = tegra2_clk_recalculate_rate, +}; + +/* Periph clk ops */ + +static void tegra2_periph_clk_init(struct clk *c) +{ + u32 val = clk_readl(c->reg); + const struct clk_mux_sel *mux = 0; + const struct clk_mux_sel *sel; + if (c->flags & MUX) { + for (sel = c->inputs; sel->input != NULL; sel++) { + if (val >> PERIPH_CLK_SOURCE_SHIFT == sel->value) + mux = sel; + } + BUG_ON(!mux); + + c->parent = mux->input; + } else { + c->parent = c->inputs[0].input; + } + + if (c->flags & DIV_U71) { + u32 divu71 = val & PERIPH_CLK_SOURCE_DIV_MASK; + c->div = divu71 + 2; + c->mul = 2; + } else { + c->div = 1; + c->mul = 1; + } + + c->state = ON; + if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) & + PERIPH_CLK_TO_ENB_BIT(c))) + c->state = OFF; + if (!(c->flags & PERIPH_NO_RESET)) + if (clk_readl(RST_DEVICES + PERIPH_CLK_TO_ENB_REG(c)) & + PERIPH_CLK_TO_ENB_BIT(c)) + c->state = OFF; + tegra2_clk_recalculate_rate(c); +} + +static int tegra2_periph_clk_enable(struct clk *c) +{ + u32 val; + pr_debug("%s on clock %s\n", __func__, c->name); + + clk_writel(PERIPH_CLK_TO_ENB_BIT(c), + CLK_OUT_ENB_SET + PERIPH_CLK_TO_ENB_SET_REG(c)); + if (!(c->flags & PERIPH_NO_RESET) && !(c->flags & PERIPH_MANUAL_RESET)) + clk_writel(PERIPH_CLK_TO_ENB_BIT(c), + RST_DEVICES_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); + if (c->flags & PERIPH_EMC_ENB) { + /* The EMC peripheral clock has 2 extra enable bits */ + /* FIXME: Do they need to be disabled? */ + val = clk_readl(c->reg); + val |= 0x3 << 24; + clk_writel(val, c->reg); + } + return 0; +} + +static void tegra2_periph_clk_disable(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + + clk_writel(PERIPH_CLK_TO_ENB_BIT(c), + CLK_OUT_ENB_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); +} + +void tegra2_periph_reset_deassert(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + if (!(c->flags & PERIPH_NO_RESET)) + clk_writel(PERIPH_CLK_TO_ENB_BIT(c), + RST_DEVICES_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); +} + +void tegra2_periph_reset_assert(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + if (!(c->flags & PERIPH_NO_RESET)) + clk_writel(PERIPH_CLK_TO_ENB_BIT(c), + RST_DEVICES_SET + PERIPH_CLK_TO_ENB_SET_REG(c)); +} + + +static int tegra2_periph_clk_set_parent(struct clk *c, struct clk *p) +{ + u32 val; + const struct clk_mux_sel *sel; + pr_debug("%s: %s %s\n", __func__, c->name, p->name); + for (sel = c->inputs; sel->input != NULL; sel++) { + if (sel->input == p) { + clk_reparent(c, p); + val = clk_readl(c->reg); + val &= ~PERIPH_CLK_SOURCE_MASK; + val |= (sel->value) << PERIPH_CLK_SOURCE_SHIFT; + clk_writel(val, c->reg); + c->rate = c->parent->rate; + return 0; + } + } + + return -EINVAL; +} + +static int tegra2_periph_clk_set_rate(struct clk *c, unsigned long rate) +{ + u32 val; + int divider_u71; + pr_debug("%s: %lu\n", __func__, rate); + if (c->flags & DIV_U71) { + divider_u71 = clk_div71_get_divider(c->parent, rate); + if (divider_u71 >= 0) { + val = clk_readl(c->reg); + val &= ~PERIPH_CLK_SOURCE_DIV_MASK; + val |= divider_u71; + clk_writel(val, c->reg); + c->div = divider_u71 + 2; + c->mul = 2; + tegra2_clk_recalculate_rate(c); + return 0; + } + } + return -EINVAL; +} + +static struct clk_ops tegra_periph_clk_ops = { + .init = &tegra2_periph_clk_init, + .enable = &tegra2_periph_clk_enable, + .disable = &tegra2_periph_clk_disable, + .set_parent = &tegra2_periph_clk_set_parent, + .set_rate = &tegra2_periph_clk_set_rate, + .recalculate_rate = &tegra2_clk_recalculate_rate, +}; + +/* Clock doubler ops */ +static void tegra2_clk_double_init(struct clk *c) +{ + c->mul = 2; + c->div = 1; + c->state = ON; + if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) & + PERIPH_CLK_TO_ENB_BIT(c))) + c->state = OFF; + tegra2_clk_recalculate_rate(c); +}; + +static struct clk_ops tegra_clk_double_ops = { + .init = &tegra2_clk_double_init, + .enable = &tegra2_periph_clk_enable, + .disable = &tegra2_periph_clk_disable, + .recalculate_rate = &tegra2_clk_recalculate_rate, +}; + +/* Clock definitions */ +static struct clk tegra_clk_32k = { + .name = "clk_32k", + .rate = 32678, + .ops = NULL, +}; + +static struct clk_pll_table tegra_pll_s_table[] = { + {32768, 12000000, 366, 1, 1, 0}, + {32768, 13000000, 397, 1, 1, 0}, + {32768, 19200000, 586, 1, 1, 0}, + {32768, 26000000, 793, 1, 1, 0}, + {0, 0, 0, 0, 0, 0}, +}; + +static struct clk tegra_pll_s = { + .name = "pll_s", + .flags = PLL_ALT_MISC_REG, + .ops = &tegra_pll_ops, + .reg = 0xf0, + .input_min = 32768, + .input_max = 32768, + .parent = &tegra_clk_32k, + .cf_min = 0, /* FIXME */ + .cf_max = 0, /* FIXME */ + .vco_min = 12000000, + .vco_max = 26000000, + .pll_table = tegra_pll_s_table, +}; + +static struct clk_mux_sel tegra_clk_m_sel[] = { + { .input = &tegra_clk_32k, .value = 0}, + { .input = &tegra_pll_s, .value = 1}, + { 0, 0}, +}; +static struct clk tegra_clk_m = { + .name = "clk_m", + .flags = ENABLE_ON_INIT, + .ops = &tegra_clk_m_ops, + .inputs = tegra_clk_m_sel, + .reg = 0x1fc, + .reg_mask = (1<<28), + .reg_shift = 28, +}; + +static struct clk_pll_table tegra_pll_c_table[] = { + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_c = { + .name = "pll_c", + .flags = PLL_HAS_CPCON, + .ops = &tegra_pll_ops, + .reg = 0x80, + .input_min = 2000000, + .input_max = 31000000, + .parent = &tegra_clk_m, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 20000000, + .vco_max = 1400000000, + .pll_table = tegra_pll_c_table, +}; + +static struct clk tegra_pll_c_out1 = { + .name = "pll_c_out1", + .ops = &tegra_pll_div_ops, + .flags = DIV_U71, + .parent = &tegra_pll_c, + .reg = 0x84, + .reg_shift = 0, +}; + +static struct clk_pll_table tegra_pll_m_table[] = { + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_m = { + .name = "pll_m", + .flags = PLL_HAS_CPCON, + .ops = &tegra_pll_ops, + .reg = 0x90, + .input_min = 2000000, + .input_max = 31000000, + .parent = &tegra_clk_m, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 20000000, + .vco_max = 1200000000, + .pll_table = tegra_pll_m_table, +}; + +static struct clk tegra_pll_m_out1 = { + .name = "pll_m_out1", + .ops = &tegra_pll_div_ops, + .flags = DIV_U71, + .parent = &tegra_pll_m, + .reg = 0x94, + .reg_shift = 0, +}; + +static struct clk_pll_table tegra_pll_p_table[] = { + { 12000000, 216000000, 432, 12, 2, 8}, + { 13000000, 216000000, 432, 13, 2, 8}, + { 19200000, 216000000, 90, 4, 2, 1}, + { 26000000, 216000000, 432, 26, 2, 8}, + { 12000000, 432000000, 432, 12, 1, 8}, + { 13000000, 432000000, 432, 13, 1, 8}, + { 19200000, 432000000, 90, 4, 1, 1}, + { 26000000, 432000000, 432, 26, 1, 8}, + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_p = { + .name = "pll_p", + .flags = ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON, + .ops = &tegra_pll_ops, + .reg = 0xa0, + .input_min = 2000000, + .input_max = 31000000, + .parent = &tegra_clk_m, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 20000000, + .vco_max = 1400000000, + .pll_table = tegra_pll_p_table, +}; + +static struct clk tegra_pll_p_out1 = { + .name = "pll_p_out1", + .ops = &tegra_pll_div_ops, + .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, + .parent = &tegra_pll_p, + .reg = 0xa4, + .reg_shift = 0, +}; + +static struct clk tegra_pll_p_out2 = { + .name = "pll_p_out2", + .ops = &tegra_pll_div_ops, + .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, + .parent = &tegra_pll_p, + .reg = 0xa4, + .reg_shift = 16, +}; + +static struct clk tegra_pll_p_out3 = { + .name = "pll_p_out3", + .ops = &tegra_pll_div_ops, + .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, + .parent = &tegra_pll_p, + .reg = 0xa8, + .reg_shift = 0, +}; + +static struct clk tegra_pll_p_out4 = { + .name = "pll_p_out4", + .ops = &tegra_pll_div_ops, + .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, + .parent = &tegra_pll_p, + .reg = 0xa8, + .reg_shift = 16, +}; + +static struct clk_pll_table tegra_pll_a_table[] = { + { 28800000, 56448000, 49, 25, 1, 1}, + { 28800000, 73728000, 64, 25, 1, 1}, + { 28800000, 11289600, 49, 25, 1, 1}, + { 28800000, 12288000, 64, 25, 1, 1}, + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_a = { + .name = "pll_a", + .flags = PLL_HAS_CPCON, + .ops = &tegra_pll_ops, + .reg = 0xb0, + .input_min = 2000000, + .input_max = 31000000, + .parent = &tegra_pll_p_out1, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 20000000, + .vco_max = 1400000000, + .pll_table = tegra_pll_a_table, +}; + +static struct clk tegra_pll_a_out0 = { + .name = "pll_a_out0", + .ops = &tegra_pll_div_ops, + .flags = DIV_U71, + .parent = &tegra_pll_a, + .reg = 0xb4, + .reg_shift = 0, +}; + +static struct clk_pll_table tegra_pll_d_table[] = { + { 12000000, 1000000000, 1000, 12, 1, 12}, + { 13000000, 1000000000, 1000, 13, 1, 12}, + { 19200000, 1000000000, 625, 12, 1, 8}, + { 26000000, 1000000000, 1000, 26, 1, 12}, + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_d = { + .name = "pll_d", + .flags = PLL_HAS_CPCON | PLLD, + .ops = &tegra_pll_ops, + .reg = 0xd0, + .input_min = 2000000, + .input_max = 40000000, + .parent = &tegra_clk_m, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 40000000, + .vco_max = 1000000000, + .pll_table = tegra_pll_d_table, +}; + +static struct clk tegra_pll_d_out0 = { + .name = "pll_d_out0", + .ops = &tegra_pll_div_ops, + .flags = DIV_2 | PLLD, + .parent = &tegra_pll_d, +}; + +static struct clk_pll_table tegra_pll_u_table[] = { + { 12000000, 480000000, 960, 12, 1, 0}, + { 13000000, 480000000, 960, 13, 1, 0}, + { 19200000, 480000000, 200, 4, 1, 0}, + { 26000000, 480000000, 960, 26, 1, 0}, + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_u = { + .name = "pll_u", + .flags = 0, + .ops = &tegra_pll_ops, + .reg = 0xc0, + .input_min = 2000000, + .input_max = 40000000, + .parent = &tegra_clk_m, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 480000000, + .vco_max = 960000000, + .pll_table = tegra_pll_u_table, +}; + +static struct clk_pll_table tegra_pll_x_table[] = { + { 12000000, 1000000000, 1000, 12, 1, 12}, + { 13000000, 1000000000, 1000, 13, 1, 12}, + { 19200000, 1000000000, 625, 12, 1, 8}, + { 26000000, 1000000000, 1000, 26, 1, 12}, + { 12000000, 750000000, 750, 12, 1, 12}, + { 13000000, 750000000, 750, 13, 1, 12}, + { 19200000, 750000000, 625, 16, 1, 8}, + { 26000000, 750000000, 750, 26, 1, 12}, + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_x = { + .name = "pll_x", + .flags = PLL_HAS_CPCON | PLL_ALT_MISC_REG, + .ops = &tegra_pll_ops, + .reg = 0xe0, + .input_min = 2000000, + .input_max = 31000000, + .parent = &tegra_clk_m, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 20000000, + .vco_max = 1200000000, + .pll_table = tegra_pll_x_table, +}; + +static struct clk tegra_clk_d = { + .name = "clk_d", + .flags = PERIPH_NO_RESET, + .ops = &tegra_clk_double_ops, + .clk_num = 90, + .reg = 0x34, + .reg_shift = 12, + .parent = &tegra_clk_m, +}; + +/* FIXME: need tegra_audio +static struct clk tegra_clk_audio_2x = { + .name = "clk_d", + .flags = PERIPH_NO_RESET, + .ops = &tegra_clk_double_ops, + .clk_num = 89, + .reg = 0x34, + .reg_shift = 8, + .parent = &tegra_audio, +} +*/ + +static struct clk_mux_sel mux_cclk[] = { + { .input = &tegra_clk_m, .value = 0}, + { .input = &tegra_pll_c, .value = 1}, + { .input = &tegra_clk_32k, .value = 2}, + { .input = &tegra_pll_m, .value = 3}, + { .input = &tegra_pll_p, .value = 4}, + { .input = &tegra_pll_p_out4, .value = 5}, + { .input = &tegra_pll_p_out3, .value = 6}, + { .input = &tegra_clk_d, .value = 7}, + { .input = &tegra_pll_x, .value = 8}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_sclk[] = { + { .input = &tegra_clk_m, .value = 0}, + { .input = &tegra_pll_c_out1, .value = 1}, + { .input = &tegra_pll_p_out4, .value = 2}, + { .input = &tegra_pll_p_out3, .value = 3}, + { .input = &tegra_pll_p_out2, .value = 4}, + { .input = &tegra_clk_d, .value = 5}, + { .input = &tegra_clk_32k, .value = 6}, + { .input = &tegra_pll_m_out1, .value = 7}, + { 0, 0}, +}; + +static struct clk tegra_clk_cpu = { + .name = "cpu", + .inputs = mux_cclk, + .reg = 0x20, + .ops = &tegra_super_ops, +}; + +static struct clk tegra_clk_sys = { + .name = "sys", + .inputs = mux_sclk, + .reg = 0x28, + .ops = &tegra_super_ops, +}; + +static struct clk tegra_clk_hclk = { + .name = "hclk", + .flags = DIV_BUS, + .parent = &tegra_clk_sys, + .reg = 0x30, + .reg_shift = 4, + .ops = &tegra_bus_ops, +}; + +static struct clk tegra_clk_pclk = { + .name = "pclk", + .flags = DIV_BUS, + .parent = &tegra_clk_hclk, + .reg = 0x30, + .reg_shift = 0, + .ops = &tegra_bus_ops, +}; + +static struct clk_mux_sel mux_pllm_pllc_pllp_plla[] = { + { .input = &tegra_pll_m, .value = 0}, + { .input = &tegra_pll_c, .value = 1}, + { .input = &tegra_pll_p, .value = 2}, + { .input = &tegra_pll_a_out0, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllm_pllc_pllp_clkm[] = { + { .input = &tegra_pll_m, .value = 0}, + { .input = &tegra_pll_c, .value = 1}, + { .input = &tegra_pll_p, .value = 2}, + { .input = &tegra_clk_m, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_pllc_pllm_clkm[] = { + { .input = &tegra_pll_p, .value = 0}, + { .input = &tegra_pll_c, .value = 1}, + { .input = &tegra_pll_m, .value = 2}, + { .input = &tegra_clk_m, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_plla_audio_pllp_clkm[] = { + {.input = &tegra_pll_a, .value = 0}, + /* FIXME: no mux defined for tegra_audio + {.input = &tegra_audio, .value = 1},*/ + {.input = &tegra_pll_p, .value = 2}, + {.input = &tegra_clk_m, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_plld_pllc_clkm[] = { + {.input = &tegra_pll_p, .value = 0}, + {.input = &tegra_pll_d_out0, .value = 1}, + {.input = &tegra_pll_c, .value = 2}, + {.input = &tegra_clk_m, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_pllc_audio_clkm_clk32[] = { + {.input = &tegra_pll_p, .value = 0}, + {.input = &tegra_pll_c, .value = 1}, + /* FIXME: no mux defined for tegra_audio + {.input = &tegra_audio, .value = 2},*/ + {.input = &tegra_clk_m, .value = 3}, + {.input = &tegra_clk_32k, .value = 4}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_pllc_pllm[] = { + {.input = &tegra_pll_p, .value = 0}, + {.input = &tegra_pll_c, .value = 1}, + {.input = &tegra_pll_m, .value = 2}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_clk_m[] = { + { .input = &tegra_clk_m, .value = 0}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_out3[] = { + { .input = &tegra_pll_p_out3, .value = 0}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_plld[] = { + { .input = &tegra_pll_d, .value = 0}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_clk_32k[] = { + { .input = &tegra_clk_32k, .value = 0}, + { 0, 0}, +}; + +#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, _inputs, _flags) \ + { \ + .name = _name, \ + .lookup = { \ + .dev_id = _dev, \ + .con_id = _con, \ + }, \ + .ops = &tegra_periph_clk_ops, \ + .clk_num = _clk_num, \ + .reg = _reg, \ + .inputs = _inputs, \ + .flags = _flags, \ + } + +struct clk tegra_periph_clks[] = { + PERIPH_CLK("rtc", "rtc-tegra", NULL, 4, 0, mux_clk_32k, PERIPH_NO_RESET), + PERIPH_CLK("timer", "timer", NULL, 5, 0, mux_clk_m, 0), + PERIPH_CLK("i2s1", "i2s.0", NULL, 11, 0x100, mux_plla_audio_pllp_clkm, MUX | DIV_U71), + PERIPH_CLK("i2s2", "i2s.1", NULL, 18, 0x104, mux_plla_audio_pllp_clkm, MUX | DIV_U71), + /* FIXME: spdif has 2 clocks but 1 enable */ + PERIPH_CLK("spdif_out", "spdif_out", NULL, 10, 0x108, mux_plla_audio_pllp_clkm, MUX | DIV_U71), + PERIPH_CLK("spdif_in", "spdif_in", NULL, 10, 0x10c, mux_pllp_pllc_pllm, MUX | DIV_U71), + PERIPH_CLK("pwm", "pwm", NULL, 17, 0x110, mux_pllp_pllc_audio_clkm_clk32, MUX | DIV_U71), + PERIPH_CLK("spi", "spi", NULL, 43, 0x114, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("xio", "xio", NULL, 45, 0x120, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("twc", "twc", NULL, 16, 0x12c, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("sbc1", "spi_tegra.0", NULL, 41, 0x134, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("sbc2", "spi_tegra.1", NULL, 44, 0x118, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("sbc3", "spi_tegra.2", NULL, 46, 0x11c, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("sbc4", "spi_tegra.3", NULL, 68, 0x1b4, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("ide", "ide", NULL, 25, 0x144, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("ndflash", "tegra_nand", NULL, 13, 0x160, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + /* FIXME: vfir shares an enable with uartb */ + PERIPH_CLK("vfir", "vfir", NULL, 7, 0x168, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("sdmmc1", "sdhci-tegra.0", NULL, 14, 0x150, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("sdmmc2", "sdhci-tegra.1", NULL, 9, 0x154, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("sdmmc3", "sdhci-tegra.2", NULL, 69, 0x1bc, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("sdmmc4", "sdhci-tegra.3", NULL, 15, 0x160, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("vde", "vde", NULL, 61, 0x1c8, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("csite", "csite", NULL, 73, 0x1d4, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + /* FIXME: what is la? */ + PERIPH_CLK("la", "la", NULL, 76, 0x1f8, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("owr", "owr", NULL, 71, 0x1cc, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("nor", "nor", NULL, 42, 0x1d0, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("mipi", "mipi", NULL, 50, 0x174, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("i2c1", "tegra-i2c.0", NULL, 12, 0x124, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("i2c2", "tegra-i2c.1", NULL, 54, 0x198, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("i2c3", "tegra-i2c.2", NULL, 67, 0x1b8, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("dvc", "tegra-i2c.3", NULL, 47, 0x128, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("i2c1_i2c", "tegra-i2c.0", "i2c", 0, 0, mux_pllp_out3, 0), + PERIPH_CLK("i2c2_i2c", "tegra-i2c.1", "i2c", 0, 0, mux_pllp_out3, 0), + PERIPH_CLK("i2c3_i2c", "tegra-i2c.2", "i2c", 0, 0, mux_pllp_out3, 0), + PERIPH_CLK("dvc_i2c", "tegra-i2c.3", "i2c", 0, 0, mux_pllp_out3, 0), + PERIPH_CLK("uarta", "uart.0", NULL, 6, 0x178, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("uartb", "uart.1", NULL, 7, 0x17c, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("uartc", "uart.2", NULL, 55, 0x1a0, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("uartd", "uart.3", NULL, 65, 0x1c0, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("uarte", "uart.4", NULL, 66, 0x1c4, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("3d", "3d", NULL, 24, 0x158, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_MANUAL_RESET), + PERIPH_CLK("2d", "2d", NULL, 21, 0x15c, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), + /* FIXME: vi and vi_sensor share an enable */ + PERIPH_CLK("vi", "vi", NULL, 20, 0x148, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), + PERIPH_CLK("vi_sensor", "vi_sensor", NULL, 20, 0x1a8, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), + PERIPH_CLK("epp", "epp", NULL, 19, 0x16c, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), + PERIPH_CLK("mpe", "mpe", NULL, 60, 0x170, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), + PERIPH_CLK("host1x", "host1x", NULL, 28, 0x180, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), + /* FIXME: cve and tvo share an enable */ + PERIPH_CLK("cve", "cve", NULL, 49, 0x140, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), + PERIPH_CLK("tvo", "tvo", NULL, 49, 0x188, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), + PERIPH_CLK("hdmi", "hdmi", NULL, 51, 0x18c, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), + PERIPH_CLK("tvdac", "tvdac", NULL, 53, 0x194, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), + PERIPH_CLK("disp1", "tegrafb.0", NULL, 27, 0x138, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), + PERIPH_CLK("disp2", "tegrafb.1", NULL, 26, 0x13c, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), + PERIPH_CLK("usbd", "fsl-tegra-udc", NULL, 22, 0, mux_clk_m, 0), + PERIPH_CLK("usb2", "usb.1", NULL, 58, 0, mux_clk_m, 0), + PERIPH_CLK("usb3", "usb.2", NULL, 59, 0, mux_clk_m, 0), + PERIPH_CLK("emc", "emc", NULL, 57, 0x19c, mux_pllm_pllc_pllp_clkm, MUX | DIV_U71 | PERIPH_EMC_ENB), + PERIPH_CLK("dsi", "dsi", NULL, 48, 0, mux_plld, 0), +}; + +#define CLK_DUPLICATE(_name, _dev, _con) \ + { \ + .name = _name, \ + .lookup = { \ + .dev_id = _dev, \ + .con_id = _con, \ + }, \ + } + +/* Some clocks may be used by different drivers depending on the board + * configuration. List those here to register them twice in the clock lookup + * table under two names. + */ +struct clk_duplicate tegra_clk_duplicates[] = { + CLK_DUPLICATE("uarta", "tegra_uart.0", NULL), + CLK_DUPLICATE("uartb", "tegra_uart.1", NULL), + CLK_DUPLICATE("uartc", "tegra_uart.2", NULL), + CLK_DUPLICATE("uartd", "tegra_uart.3", NULL), + CLK_DUPLICATE("uarte", "tegra_uart.4", NULL), +}; + +#define CLK(dev, con, ck) \ + { \ + .dev_id = dev, \ + .con_id = con, \ + .clk = ck, \ + } + +struct clk_lookup tegra_clk_lookups[] = { + /* external root sources */ + CLK(NULL, "32k_clk", &tegra_clk_32k), + CLK(NULL, "pll_s", &tegra_pll_s), + CLK(NULL, "clk_m", &tegra_clk_m), + CLK(NULL, "pll_m", &tegra_pll_m), + CLK(NULL, "pll_m_out1", &tegra_pll_m_out1), + CLK(NULL, "pll_c", &tegra_pll_c), + CLK(NULL, "pll_c_out1", &tegra_pll_c_out1), + CLK(NULL, "pll_p", &tegra_pll_p), + CLK(NULL, "pll_p_out1", &tegra_pll_p_out1), + CLK(NULL, "pll_p_out2", &tegra_pll_p_out2), + CLK(NULL, "pll_p_out3", &tegra_pll_p_out3), + CLK(NULL, "pll_p_out4", &tegra_pll_p_out4), + CLK(NULL, "pll_a", &tegra_pll_a), + CLK(NULL, "pll_a_out0", &tegra_pll_a_out0), + CLK(NULL, "pll_d", &tegra_pll_d), + CLK(NULL, "pll_d_out0", &tegra_pll_d_out0), + CLK(NULL, "pll_u", &tegra_pll_u), + CLK(NULL, "pll_x", &tegra_pll_x), + CLK(NULL, "cpu", &tegra_clk_cpu), + CLK(NULL, "sys", &tegra_clk_sys), + CLK(NULL, "hclk", &tegra_clk_hclk), + CLK(NULL, "pclk", &tegra_clk_pclk), + CLK(NULL, "clk_d", &tegra_clk_d), +}; + +void __init tegra2_init_clocks(void) +{ + int i; + struct clk_lookup *cl; + struct clk *c; + struct clk_duplicate *cd; + + for (i = 0; i < ARRAY_SIZE(tegra_clk_lookups); i++) { + cl = &tegra_clk_lookups[i]; + clk_init(cl->clk); + clkdev_add(cl); + } + + for (i = 0; i < ARRAY_SIZE(tegra_periph_clks); i++) { + c = &tegra_periph_clks[i]; + cl = &c->lookup; + cl->clk = c; + + clk_init(cl->clk); + clkdev_add(cl); + } + + for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) { + cd = &tegra_clk_duplicates[i]; + c = tegra_get_clock_by_name(cd->name); + if (c) { + cl = &cd->lookup; + cl->clk = c; + clkdev_add(cl); + } else { + pr_err("%s: Unknown duplicate clock %s\n", __func__, + cd->name); + } + } +} diff --git a/arch/arm/mach-tegra/timer.c b/arch/arm/mach-tegra/timer.c new file mode 100644 index 00000000000..2f420210d40 --- /dev/null +++ b/arch/arm/mach-tegra/timer.c @@ -0,0 +1,187 @@ +/* + * arch/arch/mach-tegra/timer.c + * + * Copyright (C) 2010 Google, Inc. + * + * Author: + * Colin Cross <ccross@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/init.h> +#include <linux/time.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/clockchips.h> +#include <linux/clocksource.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/cnt32_to_63.h> + +#include <asm/mach/time.h> +#include <asm/mach/time.h> +#include <asm/localtimer.h> + +#include <mach/iomap.h> +#include <mach/irqs.h> + +#include "board.h" +#include "clock.h" + +#define TIMERUS_CNTR_1US 0x10 +#define TIMERUS_USEC_CFG 0x14 +#define TIMERUS_CNTR_FREEZE 0x4c + +#define TIMER1_BASE 0x0 +#define TIMER2_BASE 0x8 +#define TIMER3_BASE 0x50 +#define TIMER4_BASE 0x58 + +#define TIMER_PTV 0x0 +#define TIMER_PCR 0x4 + +struct tegra_timer; + +static void __iomem *timer_reg_base = IO_ADDRESS(TEGRA_TMR1_BASE); + +#define timer_writel(value, reg) \ + __raw_writel(value, (u32)timer_reg_base + (reg)) +#define timer_readl(reg) \ + __raw_readl((u32)timer_reg_base + (reg)) + +static int tegra_timer_set_next_event(unsigned long cycles, + struct clock_event_device *evt) +{ + u32 reg; + + reg = 0x80000000 | ((cycles > 1) ? (cycles-1) : 0); + timer_writel(reg, TIMER3_BASE + TIMER_PTV); + + return 0; +} + +static void tegra_timer_set_mode(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + u32 reg; + + timer_writel(0, TIMER3_BASE + TIMER_PTV); + + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + reg = 0xC0000000 | ((1000000/HZ)-1); + timer_writel(reg, TIMER3_BASE + TIMER_PTV); + break; + case CLOCK_EVT_MODE_ONESHOT: + break; + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + case CLOCK_EVT_MODE_RESUME: + break; + } +} + +static cycle_t tegra_clocksource_read(struct clocksource *cs) +{ + return cnt32_to_63(timer_readl(TIMERUS_CNTR_1US)); +} + +static struct clock_event_device tegra_clockevent = { + .name = "timer0", + .rating = 300, + .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC, + .set_next_event = tegra_timer_set_next_event, + .set_mode = tegra_timer_set_mode, +}; + +static struct clocksource tegra_clocksource = { + .name = "timer_us", + .rating = 300, + .read = tegra_clocksource_read, + .mask = 0x7FFFFFFFFFFFFFFFULL, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +unsigned long long sched_clock(void) +{ + return clocksource_cyc2ns(tegra_clocksource.read(&tegra_clocksource), + tegra_clocksource.mult, tegra_clocksource.shift); +} + +static irqreturn_t tegra_timer_interrupt(int irq, void *dev_id) +{ + struct clock_event_device *evt = (struct clock_event_device *)dev_id; + timer_writel(1<<30, TIMER3_BASE + TIMER_PCR); + evt->event_handler(evt); + return IRQ_HANDLED; +} + +static struct irqaction tegra_timer_irq = { + .name = "timer0", + .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_TRIGGER_HIGH, + .handler = tegra_timer_interrupt, + .dev_id = &tegra_clockevent, + .irq = INT_TMR3, +}; + +static void __init tegra_init_timer(void) +{ + unsigned long rate = clk_measure_input_freq(); + int ret; + +#ifdef CONFIG_HAVE_ARM_TWD + twd_base = IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x600); +#endif + + switch (rate) { + case 12000000: + timer_writel(0x000b, TIMERUS_USEC_CFG); + break; + case 13000000: + timer_writel(0x000c, TIMERUS_USEC_CFG); + break; + case 19200000: + timer_writel(0x045f, TIMERUS_USEC_CFG); + break; + case 26000000: + timer_writel(0x0019, TIMERUS_USEC_CFG); + break; + default: + WARN(1, "Unknown clock rate"); + } + + if (clocksource_register_hz(&tegra_clocksource, 1000000)) { + printk(KERN_ERR "Failed to register clocksource\n"); + BUG(); + } + + ret = setup_irq(tegra_timer_irq.irq, &tegra_timer_irq); + if (ret) { + printk(KERN_ERR "Failed to register timer IRQ: %d\n", ret); + BUG(); + } + + clockevents_calc_mult_shift(&tegra_clockevent, 1000000, 5); + tegra_clockevent.max_delta_ns = + clockevent_delta2ns(0x1fffffff, &tegra_clockevent); + tegra_clockevent.min_delta_ns = + clockevent_delta2ns(0x1, &tegra_clockevent); + tegra_clockevent.cpumask = cpu_all_mask; + tegra_clockevent.irq = tegra_timer_irq.irq; + clockevents_register_device(&tegra_clockevent); + + return; +} + +struct sys_timer tegra_timer = { + .init = tegra_init_timer, +}; diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 87ec141fcaa..e1fd98fff8f 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -771,7 +771,8 @@ config CACHE_L2X0 bool "Enable the L2x0 outer cache controller" depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 || \ REALVIEW_EB_A9MP || ARCH_MX35 || ARCH_MX31 || MACH_REALVIEW_PBX || \ - ARCH_NOMADIK || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 + ARCH_NOMADIK || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \ + ARCH_TEGRA default y select OUTER_CACHE select OUTER_CACHE_SYNC |