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ColdFire:Add mb for 5253 dram initialization

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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>
This commit is contained in:
Jason Jin 2011-04-18 17:54:04 +08:00 • committed by jason
parent f73e7d67ed
commit 6752da6b26
2 changed files with 6 additions and 0 deletions
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2
arch/m68k/include/asm/io.h
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@ -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;