diff options
| author | Olof Johansson <olof@lixom.net> | 2012-09-20 22:53:18 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-09-20 22:54:07 -0700 |
| commit | 5ae8d15f686f93d2ac60a7b16d8ddfbfdfc7c00f (patch) | |
| tree | 4fd7a93ded75199748764b0e451e5751393e85b9 /arch/arm/include/debug/picoxcell.S | |
| parent | b612a85792192b70e6497619521772c38ace758e (diff) | |
| parent | 617276307cd4cdb9a95c77efaa3063695af63aa7 (diff) | |
Merge tag 'multi-platform-for-3.7' of git://sources.calxeda.com/kernel/linux into next/multiplatform
Enable initial ARM multi-platform support for highbank, mvebu,
socfpga, picoxcell, and vexpress.
Multi-platform support is dependent on mach/gpio.h removal and
restructuring of DEBUG_LL and dtb build rules included in this branch.
This has been built for all defconfigs, and booted on highbank with
all 5 platforms enabled.
By Rob Herring (18) and Arnd Bergmann (1)
via Rob Herring
* tag 'multi-platform-for-3.7' of git://sources.calxeda.com/kernel/linux:
ARM: vexpress: convert to multi-platform
ARM: initial multiplatform support
ARM: mvebu: move armada-370-xp.h in mach dir
ARM: vexpress: remove dependency on mach/* headers
ARM: picoxcell: remove dependency on mach/* headers
ARM: move all dtb targets out of Makefile.boot
ARM: picoxcell: move debug macros to include/debug
ARM: socfpga: move debug macros to include/debug
ARM: mvebu: move debug macros to include/debug
ARM: vexpress: move debug macros to include/debug
ARM: highbank: move debug macros to include/debug
ARM: move debug macros to common location
ARM: make mach/gpio.h headers optional
ARM: orion: move custom gpio functions to orion-gpio.h
ARM: shmobile: move custom gpio functions to sh-gpio.h
ARM: pxa: use gpio_to_irq for sharppm_sl
net: pxaficp_ir: add irq resources
usb: pxa27x_udc: remove IRQ_USB define
staging: ste_rmi4: remove gpio.h include
Conflicts due to addition of bcm2835 and removal of pnx4008 in:
arch/arm/Kconfig
arch/arm/Makefile
Conflicts due to new dtb targets, moved to arch/arm/boot/dts/Makefile in:
arch/arm/mach-imx/Makefile.boot
arch/arm/mach-mxs/Makefile.boot
arch/arm/mach-tegra/Makefile.boot
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/include/debug/picoxcell.S')
| -rw-r--r-- | arch/arm/include/debug/picoxcell.S | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/include/debug/picoxcell.S b/arch/arm/include/debug/picoxcell.S new file mode 100644 index 00000000000..7419deb1b94 --- /dev/null +++ b/arch/arm/include/debug/picoxcell.S @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2011 Picochip Ltd., Jamie Iles + * + * 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. + * + * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit + * accesses to the 8250. + */ +#include <linux/serial_reg.h> + +#define UART_SHIFT 2 +#define PICOXCELL_UART1_BASE 0x80230000 +#define PHYS_TO_IO(x) (((x) & 0x00ffffff) | 0xfe000000) + + .macro addruart, rp, rv, tmp + ldr \rv, =PHYS_TO_IO(PICOXCELL_UART1_BASE) + ldr \rp, =PICOXCELL_UART1_BASE + .endm + + .macro senduart,rd,rx + str \rd, [\rx, #UART_TX << UART_SHIFT] + .endm + + .macro busyuart,rd,rx +1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT] + and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE + teq \rd, #UART_LSR_TEMT | UART_LSR_THRE + bne 1002b + .endm + + /* The UART's don't have any flow control IO's wired up. */ + .macro waituart,rd,rx + .endm |