diff options
| -rw-r--r-- | Documentation/devicetree/bindings/arm/arm-boards | 20 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/arm-versatile.txt | 10 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/mtd/arm-versatile.txt | 8 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/net/smsc-lan91c111.txt | 10 | ||||
| -rw-r--r-- | arch/arm/boot/dts/versatile-ab.dts | 192 | ||||
| -rw-r--r-- | arch/arm/boot/dts/versatile-pb.dts | 48 | ||||
| -rw-r--r-- | arch/arm/mach-versatile/Kconfig | 8 | ||||
| -rw-r--r-- | arch/arm/mach-versatile/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-versatile/core.c | 62 | ||||
| -rw-r--r-- | arch/arm/mach-versatile/core.h | 4 | ||||
| -rw-r--r-- | arch/arm/mach-versatile/versatile_dt.c | 51 |
11 files changed, 414 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/arm-boards b/Documentation/devicetree/bindings/arm/arm-boards new file mode 100644 index 00000000000..91f26148af7 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/arm-boards @@ -0,0 +1,20 @@ +ARM Versatile Application and Platform Baseboards +------------------------------------------------- +ARM's development hardware platform with connectors for customizable +core tiles. The hardware configuration of the Versatile boards is +highly customizable. + +Required properties (in root node): + compatible = "arm,versatile-ab"; /* Application baseboard */ + compatible = "arm,versatile-pb"; /* Platform baseboard */ + +Interrupt controllers: +- VIC required properties: + compatible = "arm,versatile-vic"; + interrupt-controller; + #interrupt-cells = <1>; + +- SIC required properties: + compatible = "arm,versatile-sic"; + interrupt-controller; + #interrupt-cells = <1>; diff --git a/Documentation/devicetree/bindings/i2c/arm-versatile.txt b/Documentation/devicetree/bindings/i2c/arm-versatile.txt new file mode 100644 index 00000000000..361d31c51b6 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/arm-versatile.txt @@ -0,0 +1,10 @@ +i2c Controller on ARM Versatile platform: + +Required properties: +- compatible : Must be "arm,versatile-i2c"; +- reg +- #address-cells = <1>; +- #size-cells = <0>; + +Optional properties: +- Child nodes conforming to i2c bus binding diff --git a/Documentation/devicetree/bindings/mtd/arm-versatile.txt b/Documentation/devicetree/bindings/mtd/arm-versatile.txt new file mode 100644 index 00000000000..476845db94d --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/arm-versatile.txt @@ -0,0 +1,8 @@ +Flash device on ARM Versatile board + +Required properties: +- compatible : must be "arm,versatile-flash"; +- bank-width : width in bytes of flash interface. + +Optional properties: +- Subnode partition map from mtd flash binding diff --git a/Documentation/devicetree/bindings/net/smsc-lan91c111.txt b/Documentation/devicetree/bindings/net/smsc-lan91c111.txt new file mode 100644 index 00000000000..953049b4248 --- /dev/null +++ b/Documentation/devicetree/bindings/net/smsc-lan91c111.txt @@ -0,0 +1,10 @@ +SMSC LAN91c111 Ethernet mac + +Required properties: +- compatible = "smsc,lan91c111"; +- reg : physical address and size of registers +- interrupts : interrupt connection + +Optional properties: +- phy-device : phandle to Ethernet phy +- local-mac-address : Ethernet mac address to use diff --git a/arch/arm/boot/dts/versatile-ab.dts b/arch/arm/boot/dts/versatile-ab.dts new file mode 100644 index 00000000000..0b32925f214 --- /dev/null +++ b/arch/arm/boot/dts/versatile-ab.dts @@ -0,0 +1,192 @@ +/dts-v1/; +/include/ "skeleton.dtsi" + +/ { + model = "ARM Versatile AB"; + compatible = "arm,versatile-ab"; + #address-cells = <1>; + #size-cells = <1>; + interrupt-parent = <&vic>; + + aliases { + serial0 = &uart0; + serial1 = &uart1; + serial2 = &uart2; + i2c0 = &i2c0; + }; + + memory { + reg = <0x0 0x08000000>; + }; + + flash@34000000 { + compatible = "arm,versatile-flash"; + reg = <0x34000000 0x4000000>; + bank-width = <4>; + }; + + i2c0: i2c@10002000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "arm,versatile-i2c"; + reg = <0x10002000 0x1000>; + + rtc@68 { + compatible = "dallas,ds1338"; + reg = <0x68>; + }; + }; + + net@10010000 { + compatible = "smsc,lan91c111"; + reg = <0x10010000 0x10000>; + interrupts = <25>; + }; + + lcd@10008000 { + compatible = "arm,versatile-lcd"; + reg = <0x10008000 0x1000>; + }; + + amba { + compatible = "arm,amba-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + vic: intc@10140000 { + compatible = "arm,versatile-vic"; + interrupt-controller; + #interrupt-cells = <1>; + reg = <0x10140000 0x1000>; + }; + + sic: intc@10003000 { + compatible = "arm,versatile-sic"; + interrupt-controller; + #interrupt-cells = <1>; + reg = <0x10003000 0x1000>; + interrupt-parent = <&vic>; + interrupts = <31>; /* Cascaded to vic */ + }; + + dma@10130000 { + compatible = "arm,pl081", "arm,primecell"; + reg = <0x10130000 0x1000>; + interrupts = <17>; + }; + + uart0: uart@101f1000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x101f1000 0x1000>; + interrupts = <12>; + }; + + uart1: uart@101f2000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x101f2000 0x1000>; + interrupts = <13>; + }; + + uart2: uart@101f3000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x101f3000 0x1000>; + interrupts = <14>; + }; + + smc@10100000 { + compatible = "arm,primecell"; + reg = <0x10100000 0x1000>; + }; + + mpmc@10110000 { + compatible = "arm,primecell"; + reg = <0x10110000 0x1000>; + }; + + display@10120000 { + compatible = "arm,pl110", "arm,primecell"; + reg = <0x10120000 0x1000>; + interrupts = <16>; + }; + + sctl@101e0000 { + compatible = "arm,primecell"; + reg = <0x101e0000 0x1000>; + }; + + watchdog@101e1000 { + compatible = "arm,primecell"; + reg = <0x101e1000 0x1000>; + interrupts = <0>; + }; + + gpio0: gpio@101e4000 { + compatible = "arm,pl061", "arm,primecell"; + reg = <0x101e4000 0x1000>; + gpio-controller; + interrupts = <6>; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpio1: gpio@101e5000 { + compatible = "arm,pl061", "arm,primecell"; + reg = <0x101e5000 0x1000>; + interrupts = <7>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + rtc@101e8000 { + compatible = "arm,pl030", "arm,primecell"; + reg = <0x101e8000 0x1000>; + interrupts = <10>; + }; + + sci@101f0000 { + compatible = "arm,primecell"; + reg = <0x101f0000 0x1000>; + interrupts = <15>; + }; + + ssp@101f4000 { + compatible = "arm,pl022", "arm,primecell"; + reg = <0x101f4000 0x1000>; + interrupts = <11>; + }; + + fpga { + compatible = "arm,versatile-fpga", "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x10000000 0x10000>; + + aaci@4000 { + compatible = "arm,primecell"; + reg = <0x4000 0x1000>; + interrupts = <24>; + }; + mmc@5000 { + compatible = "arm,primecell"; + reg = < 0x5000 0x1000>; + interrupts = <22>; + }; + kmi@6000 { + compatible = "arm,pl050", "arm,primecell"; + reg = <0x6000 0x1000>; + interrupt-parent = <&sic>; + interrupts = <3>; + }; + kmi@7000 { + compatible = "arm,pl050", "arm,primecell"; + reg = <0x7000 0x1000>; + interrupt-parent = <&sic>; + interrupts = <4>; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/versatile-pb.dts b/arch/arm/boot/dts/versatile-pb.dts new file mode 100644 index 00000000000..8a614e39800 --- /dev/null +++ b/arch/arm/boot/dts/versatile-pb.dts @@ -0,0 +1,48 @@ +/include/ "versatile-ab.dts" + +/ { + model = "ARM Versatile PB"; + compatible = "arm,versatile-pb"; + + amba { + gpio2: gpio@101e6000 { + compatible = "arm,pl061", "arm,primecell"; + reg = <0x101e6000 0x1000>; + interrupts = <8>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + gpio3: gpio@101e7000 { + compatible = "arm,pl061", "arm,primecell"; + reg = <0x101e7000 0x1000>; + interrupts = <9>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; + }; + + fpga { + uart@9000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x9000 0x1000>; + interrupt-parent = <&sic>; + interrupts = <6>; + }; + sci@a000 { + compatible = "arm,primecell"; + reg = <0xa000 0x1000>; + interrupt-parent = <&sic>; + interrupts = <5>; + }; + mmc@b000 { + compatible = "arm,primecell"; + reg = <0xb000 0x1000>; + interrupts = <23>; + }; + }; + }; +}; diff --git a/arch/arm/mach-versatile/Kconfig b/arch/arm/mach-versatile/Kconfig index 9cdec5aa04a..c1f38f6625b 100644 --- a/arch/arm/mach-versatile/Kconfig +++ b/arch/arm/mach-versatile/Kconfig @@ -17,4 +17,12 @@ config MACH_VERSATILE_AB Include support for the ARM(R) Versatile Application Baseboard for the ARM926EJ-S. +config MACH_VERSATILE_DT + bool "Support Versatile platform from device tree" + select USE_OF + select CPU_ARM926T + help + Include support for the ARM(R) Versatile/PB platform, + using the device tree for discovery + endmenu diff --git a/arch/arm/mach-versatile/Makefile b/arch/arm/mach-versatile/Makefile index 97cf4d831b0..81fa3fe25e1 100644 --- a/arch/arm/mach-versatile/Makefile +++ b/arch/arm/mach-versatile/Makefile @@ -5,4 +5,5 @@ obj-y := core.o obj-$(CONFIG_ARCH_VERSATILE_PB) += versatile_pb.o obj-$(CONFIG_MACH_VERSATILE_AB) += versatile_ab.o +obj-$(CONFIG_MACH_VERSATILE_DT) += versatile_dt.o obj-$(CONFIG_PCI) += pci.o diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index 0c99cf076c6..e340a54251d 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -24,6 +24,9 @@ #include <linux/platform_device.h> #include <linux/sysdev.h> #include <linux/interrupt.h> +#include <linux/irqdomain.h> +#include <linux/of_address.h> +#include <linux/of_platform.h> #include <linux/amba/bus.h> #include <linux/amba/clcd.h> #include <linux/amba/pl061.h> @@ -83,13 +86,26 @@ static struct fpga_irq_data sic_irq = { #define PIC_MASK 0 #endif +/* Lookup table for finding a DT node that represents the vic instance */ +static const struct of_device_id vic_of_match[] __initconst = { + { .compatible = "arm,versatile-vic", }, + {} +}; + +static const struct of_device_id sic_of_match[] __initconst = { + { .compatible = "arm,versatile-sic", }, + {} +}; + void __init versatile_init_irq(void) { vic_init(VA_VIC_BASE, IRQ_VIC_START, ~0, 0); + irq_domain_generate_simple(vic_of_match, VERSATILE_VIC_BASE, IRQ_VIC_START); writel(~0, VA_SIC_BASE + SIC_IRQ_ENABLE_CLEAR); fpga_irq_init(IRQ_VICSOURCE31, ~PIC_MASK, &sic_irq); + irq_domain_generate_simple(sic_of_match, VERSATILE_SIC_BASE, IRQ_SIC_START); /* * Interrupts on secondary controller from 0 to 8 are routed to @@ -646,6 +662,52 @@ static struct amba_device *amba_devs[] __initdata = { &kmi1_device, }; +#ifdef CONFIG_OF +/* + * Lookup table for attaching a specific name and platform_data pointer to + * devices as they get created by of_platform_populate(). Ideally this table + * would not exist, but the current clock implementation depends on some devices + * having a specific name. + */ +struct of_dev_auxdata versatile_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("arm,primecell", VERSATILE_MMCI0_BASE, "fpga:05", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_KMI0_BASE, "fpga:06", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_KMI1_BASE, "fpga:07", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART3_BASE, "fpga:09", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_MMCI1_BASE, "fpga:0b", NULL), + + OF_DEV_AUXDATA("arm,primecell", VERSATILE_CLCD_BASE, "dev:20", &clcd_plat_data), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART0_BASE, "dev:f1", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART1_BASE, "dev:f2", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_UART2_BASE, "dev:f3", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_SSP_BASE, "dev:f4", NULL), + +#if 0 + /* + * These entries are unnecessary because no clocks referencing + * them. I've left them in for now as place holders in case + * any of them need to be added back, but they should be + * removed before actually committing this patch. --gcl + */ + OF_DEV_AUXDATA("arm,primecell", VERSATILE_AACI_BASE, "fpga:04", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCI1_BASE, "fpga:0a", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_SMC_BASE, "dev:00", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_MPMC_BASE, "dev:10", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_DMAC_BASE, "dev:30", NULL), + + OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCTL_BASE, "dev:e0", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_WATCHDOG_BASE, "dev:e1", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO0_BASE, "dev:e4", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO1_BASE, "dev:e5", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO2_BASE, "dev:e6", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_GPIO3_BASE, "dev:e7", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_RTC_BASE, "dev:e8", NULL), + OF_DEV_AUXDATA("arm,primecell", VERSATILE_SCI_BASE, "dev:f0", NULL), +#endif + {} +}; +#endif + #ifdef CONFIG_LEDS #define VA_LEDS_BASE (__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_LED_OFFSET) diff --git a/arch/arm/mach-versatile/core.h b/arch/arm/mach-versatile/core.h index fd6404e5d78..e01422700eb 100644 --- a/arch/arm/mach-versatile/core.h +++ b/arch/arm/mach-versatile/core.h @@ -23,6 +23,7 @@ #define __ASM_ARCH_VERSATILE_H #include <linux/amba/bus.h> +#include <linux/of_platform.h> extern void __init versatile_init(void); extern void __init versatile_init_early(void); @@ -30,6 +31,9 @@ extern void __init versatile_init_irq(void); extern void __init versatile_map_io(void); extern struct sys_timer versatile_timer; extern unsigned int mmc_status(struct device *dev); +#ifdef CONFIG_OF +extern struct of_dev_auxdata versatile_auxdata_lookup[]; +#endif #define AMBA_DEVICE(name,busid,base,plat) \ static struct amba_device name##_device = { \ diff --git a/arch/arm/mach-versatile/versatile_dt.c b/arch/arm/mach-versatile/versatile_dt.c new file mode 100644 index 00000000000..54e037c090f --- /dev/null +++ b/arch/arm/mach-versatile/versatile_dt.c @@ -0,0 +1,51 @@ +/* + * Versatile board support using the device tree + * + * Copyright (C) 2010 Secret Lab Technologies Ltd. + * Copyright (C) 2009 Jeremy Kerr <jeremy.kerr@canonical.com> + * Copyright (C) 2004 ARM Limited + * Copyright (C) 2000 Deep Blue Solutions Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * 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 + */ + +#include <linux/init.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> + +#include "core.h" + +static void __init versatile_dt_init(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, + versatile_auxdata_lookup, NULL); +} + +static const char *versatile_dt_match[] __initconst = { + "arm,versatile-ab", + "arm,versatile-pb", + NULL, +}; + +DT_MACHINE_START(VERSATILE_PB, "ARM-Versatile (Device Tree Support)") + .map_io = versatile_map_io, + .init_early = versatile_init_early, + .init_irq = versatile_init_irq, + .timer = &versatile_timer, + .init_machine = versatile_dt_init, + .dt_compat = versatile_dt_match, +MACHINE_END |