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Blackfin arch: Load P0 before storing through it 

Fortunately this function is only used on old 533 revisions.

Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
This commit is contained in:
Bernd Schmidt 2007-07-24 18:17:15 +08:00 committed by Bryan Wu
parent 64c5cb8608
commit f1b927dc85
1 changed files with 3 additions and 0 deletions
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3
arch/blackfin/mach-common/cacheinit.S
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@ -60,6 +60,9 @@ ENDPROC(_bfin_write_IMEM_CONTROL)
#if defined(CONFIG_BLKFIN_DCACHE) #if defined(CONFIG_BLKFIN_DCACHE)
ENTRY(_bfin_write_DMEM_CONTROL) ENTRY(_bfin_write_DMEM_CONTROL)
P0.l = (DMEM_CONTROL & 0xFFFF);
P0.h = (DMEM_CONTROL >> 16);
CLI R1; CLI R1;
SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */ SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */
.align 8; .align 8;