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| author | Peng Fan <Peng.Fan@freescale.com> | 2015-08-06 17:54:13 +0800 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2015-09-12 09:03:39 +0200 |
| commit | 208bd51396fb606dbdcf45b064e6b372d7dd3e81 (patch) | |
| tree | ea9d416358bda1ddc49af8e8a10ad741f89b1d8a | |
| parent | ed64190f67a28e9830371d424998b8aa924be9f3 (diff) | |
| download | u-boot-imx-208bd51396fb606dbdcf45b064e6b372d7dd3e81.zip u-boot-imx-208bd51396fb606dbdcf45b064e6b372d7dd3e81.tar.gz u-boot-imx-208bd51396fb606dbdcf45b064e6b372d7dd3e81.tar.bz2 | |
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>
| -rw-r--r-- | arch/arm/cpu/armv8/cache.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv8/cache.S b/arch/arm/cpu/armv8/cache.S index d846236..ab8c089 100644 --- a/arch/arm/cpu/armv8/cache.S +++ b/arch/arm/cpu/armv8/cache.S @@ -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 |