diff options
| author | Allen Martin <amartin@nvidia.com> | 2012-12-19 13:02:36 -0800 |
|---|---|---|
| committer | Allen Martin <amartin@nvidia.com> | 2012-12-19 13:02:36 -0800 |
| commit | a098cf41fdb2a6607c675f7fe4f3164617c9367e (patch) | |
| tree | b37acb36f65909e6f74cc537d73efd883a1485a6 /arch/x86/include/asm/io.h | |
| parent | b8a7c467960ffb4d5a5e1eef5f7783fb6f594542 (diff) | |
| parent | 095728803eedfce850a2f85828f79500cb09979e (diff) | |
Merge remote-tracking branch 'u-boot/master' into u-boot-arm-merged
Conflicts:
README
arch/arm/cpu/armv7/exynos/clock.c
board/samsung/universal_c210/universal.c
drivers/misc/Makefile
drivers/power/power_fsl.c
include/configs/mx35pdk.h
include/configs/mx53loco.h
include/configs/seaboard.h
Diffstat (limited to 'arch/x86/include/asm/io.h')
| -rw-r--r-- | arch/x86/include/asm/io.h | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h index 9b757d489e3..86bac90e8e8 100644 --- a/arch/x86/include/asm/io.h +++ b/arch/x86/include/asm/io.h @@ -1,6 +1,8 @@ #ifndef _ASM_IO_H #define _ASM_IO_H +#include <compiler.h> + /* * This file contains the definitions for the x86 IO instructions * inb/inw/inl/outb/outw/outl and the "string versions" of the same @@ -36,6 +38,8 @@ #define IO_SPACE_LIMIT 0xffff +#include <asm/types.h> + #ifdef __KERNEL__ @@ -135,7 +139,7 @@ out: #ifdef SLOW_IO_BY_JUMPING #define __SLOW_DOWN_IO "\njmp 1f\n1:\tjmp 1f\n1:" #else -#define __SLOW_DOWN_IO "\noutb %%al,$0x80" +#define __SLOW_DOWN_IO "\noutb %%al,$0xed" #endif #ifdef REALLY_SLOW_IO @@ -218,7 +222,7 @@ static inline void sync(void) static inline void * map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) { - return (void *)paddr; + return (void *)(uintptr_t)paddr; } /* @@ -231,7 +235,15 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags) static inline phys_addr_t virt_to_phys(void * vaddr) { - return (phys_addr_t)(vaddr); + return (phys_addr_t)(uintptr_t)(vaddr); } +/* + * TODO: The kernel offers some more advanced versions of barriers, it might + * have some advantages to use them instead of the simple one here. + */ +#define dmb() __asm__ __volatile__ ("" : : : "memory") +#define __iormb() dmb() +#define __iowmb() dmb() + #endif |