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| author | Barry Song <bs14@csr.com> | 2011-07-08 02:40:13 -0700 |
|---|---|---|
| committer | Barry Song <21cnbao@gmail.com> | 2011-07-09 07:20:51 +0800 |
| commit | 31adb06f9d68f9d033284c9ab0e264b2d581bceb (patch) | |
| tree | e43a95fdfd66d0a5fad0597d00d6e0a0707d4dd2 /arch/arm/mach-prima2 | |
| parent | 02c981c07bc95ac1e42ec6c817f0c28cf3fe993a (diff) | |
| download | op-kernel-dev-31adb06f9d68f9d033284c9ab0e264b2d581bceb.zip op-kernel-dev-31adb06f9d68f9d033284c9ab0e264b2d581bceb.tar.gz | |
ARM: CSR: mapping early DEBUG_LL uart
Signed-off-by: Barry Song <baohua.song@csr.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-prima2')
| -rw-r--r-- | arch/arm/mach-prima2/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-prima2/common.h | 6 | ||||
| -rw-r--r-- | arch/arm/mach-prima2/lluart.c | 25 | ||||
| -rw-r--r-- | arch/arm/mach-prima2/prima2.c | 1 |
4 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/mach-prima2/Makefile b/arch/arm/mach-prima2/Makefile index d44f7ae..f2fba66 100644 --- a/arch/arm/mach-prima2/Makefile +++ b/arch/arm/mach-prima2/Makefile @@ -3,3 +3,4 @@ obj-y += irq.o obj-y += clock.o obj-y += rstc.o obj-y += prima2.o +obj-$(CONFIG_DEBUG_LL) += lluart.o diff --git a/arch/arm/mach-prima2/common.h b/arch/arm/mach-prima2/common.h index fa4a3b5..83e5d212 100644 --- a/arch/arm/mach-prima2/common.h +++ b/arch/arm/mach-prima2/common.h @@ -17,4 +17,10 @@ extern struct sys_timer sirfsoc_timer; extern void __init sirfsoc_of_irq_init(void); extern void __init sirfsoc_of_clk_init(void); +#ifndef CONFIG_DEBUG_LL +static inline void sirfsoc_map_lluart(void) {} +#else +extern void __init sirfsoc_map_lluart(void); +#endif + #endif diff --git a/arch/arm/mach-prima2/lluart.c b/arch/arm/mach-prima2/lluart.c new file mode 100644 index 0000000..a89f9b3 --- /dev/null +++ b/arch/arm/mach-prima2/lluart.c @@ -0,0 +1,25 @@ +/* + * Static memory mapping for DEBUG_LL + * + * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. + * + * Licensed under GPLv2 or later. + */ + +#include <linux/kernel.h> +#include <asm/page.h> +#include <asm/mach/map.h> +#include <mach/map.h> +#include <mach/uart.h> + +void __init sirfsoc_map_lluart(void) +{ + struct map_desc sirfsoc_lluart_map = { + .virtual = SIRFSOC_UART1_VA_BASE, + .pfn = __phys_to_pfn(SIRFSOC_UART1_PA_BASE), + .length = SIRFSOC_UART1_SIZE, + .type = MT_DEVICE, + }; + + iotable_init(&sirfsoc_lluart_map, 1); +} diff --git a/arch/arm/mach-prima2/prima2.c b/arch/arm/mach-prima2/prima2.c index c26947d..f57124b 100644 --- a/arch/arm/mach-prima2/prima2.c +++ b/arch/arm/mach-prima2/prima2.c @@ -33,6 +33,7 @@ MACHINE_START(PRIMA2_EVB, "prima2cb") /* Maintainer: Barry Song <baohua.song@csr.com> */ .boot_params = 0x00000100, .init_early = sirfsoc_of_clk_init, + .map_io = sirfsoc_map_lluart, .init_irq = sirfsoc_of_irq_init, .timer = &sirfsoc_timer, .init_machine = sirfsoc_mach_init, |
