Clear the flag immediately before cache operation to not depend on the previous state.
Signed-off-by: Masahiro Yamada <[email protected]> --- arch/arm/mach-uniphier/arm32/cache_uniphier.c | 12 ++++++------ 1 file 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) -- 1.9.1 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
