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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-07-22 13:38:30 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-07-24 00:13:11 +0900 |
| commit | ebab100a988e62a27ccde0372487daeeb8cb3050 (patch) | |
| tree | 7bccd85bbd6aa77823c0e5d3e40a3e196a2f1257 /arch/arm/mach-uniphier | |
| parent | 4e3d84066e09c9ab6cee2102db7a2c51090962a4 (diff) | |
| download | u-boot-imx-ebab100a988e62a27ccde0372487daeeb8cb3050.zip u-boot-imx-ebab100a988e62a27ccde0372487daeeb8cb3050.tar.gz u-boot-imx-ebab100a988e62a27ccde0372487daeeb8cb3050.tar.bz2 | |
ARM: uniphier: clear notification flag before L2 operation
Clear the flag immediately before cache operation to not depend on
the previous state.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'arch/arm/mach-uniphier')
| -rw-r--r-- | arch/arm/mach-uniphier/arm32/cache_uniphier.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/arm/mach-uniphier/arm32/cache_uniphier.c b/arch/arm/mach-uniphier/arm32/cache_uniphier.c index 4398114..3d984a7 100644 --- a/arch/arm/mach-uniphier/arm32/cache_uniphier.c +++ b/arch/arm/mach-uniphier/arm32/cache_uniphier.c @@ -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) |