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| author | Jason Jin <Jason.jin@freescale.com> | 2011-04-18 17:54:04 +0800 |
|---|---|---|
| committer | jason <jason@jason-ThinkPad-T61.(none)> | 2011-09-04 22:46:55 +0800 |
| commit | 6752da6b2612c56e37bd8e9e176a7fedf4607bcc (patch) | |
| tree | 26b35dfe08d53b54818e588e760f54d3a36d8f40 /arch/m68k/include | |
| parent | f73e7d67ed5accc945f4e4f24a7312826f87cab5 (diff) | |
ColdFire:Add mb for 5253 dram initialization
The dram initialization sequence should be in order.
This patch add mb for the dram intialization code to make
sure the compiler do not disorder the code.
Signed-off-by: Jason Jin <Jason.jin@freescale.com>
Diffstat (limited to 'arch/m68k/include')
| -rw-r--r-- | arch/m68k/include/asm/io.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/io.h b/arch/m68k/include/asm/io.h index 531f420336..d86eaf95ea 100644 --- a/arch/m68k/include/asm/io.h +++ b/arch/m68k/include/asm/io.h @@ -81,6 +81,8 @@ #define outl(val, port) out_le32((u32 *)((port)+_IO_BASE), (val)) #endif +#define mb() __asm__ __volatile__ ("" : : : "memory") + extern inline void _insb(volatile u8 * port, void *buf, int ns) { u8 *data = (u8 *) buf; |