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arm: armv8 correct value passed to __asm_dcache_all 

>From source code comments:
"x0: 0 flush & invalidate, 1 invalidate only"

Current value 0xffff can make invalidate work, since we only judge whether
input value is 0 or not, see following code:
"
    tbz     w1, #0, 1f
    dc      isw, x9
    b       2f
1:  dc      cisw, x9      /* clean & invalidate by set/way */
2:  subs    x6, x6, #1    /* decrement the way */
"

Later we may add "2 clean only" support. So following the comments,
correct value from 0xffff to 1.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Cc: York Sun <yorksun@freescale.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
This commit is contained in:
Peng Fan 2015-08-06 17:54:13 +08:00 committed by Albert ARIBAUD
parent ed64190f67
commit 208bd51396
1 changed files with 1 additions and 1 deletions
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2
arch/arm/cpu/armv8/cache.S
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@ -112,7 +112,7 @@ ENDPROC(__asm_flush_dcache_all)
ENTRY(__asm_invalidate_dcache_all)
mov x16, lr
mov x0, #0xffff
mov x0, #0x1
bl __asm_dcache_all
mov lr, x16
ret