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ARM: uniphier: clear notification flag before L2 operation

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Clear the flag immediately before cache operation to not depend on
the previous state.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2016-07-22 13:38:30 +09:00
parent 4e3d84066e
commit ebab100a98
1 changed files with 6 additions and 6 deletions
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12
arch/arm/mach-uniphier/arm32/cache_uniphier.c
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@ -19,6 +19,9 @@ static void uniphier_cache_sync(void)
static void uniphier_cache_maint_all(u32 operation)
{
/* clear the complete notification flag */
writel(SSCOLPQS_EF, SSCOLPQS);
/* try until the command is successfully set */
do {
writel(SSCOQM_S_ALL | SSCOQM_CE | operation, SSCOQM);
@ -28,9 +31,6 @@ static void uniphier_cache_maint_all(u32 operation)
while (readl(SSCOLPQS) != SSCOLPQS_EF)
;
/* clear the complete notification flag */
writel(SSCOLPQS_EF, SSCOLPQS);
uniphier_cache_sync();
}
@ -46,6 +46,9 @@ void v7_outer_cache_inval_all(void)
static void __uniphier_cache_maint_range(u32 start, u32 size, u32 operation)
{
/* clear the complete notification flag */
writel(SSCOLPQS_EF, SSCOLPQS);
/* try until the command is successfully set */
do {
writel(SSCOQM_S_ADDRESS | SSCOQM_CE | operation, SSCOQM);
@ -57,9 +60,6 @@ static void __uniphier_cache_maint_range(u32 start, u32 size, u32 operation)
/* wait until the operation is completed */
while (readl(SSCOLPQS) != SSCOLPQS_EF)
;
/* clear the complete notification flag */
writel(SSCOLPQS_EF, SSCOLPQS);
}
static void uniphier_cache_maint_range(u32 start, u32 end, u32 operation)