Implement invalidate_icache_all() by clearing all V bits in IC and OC. This is done by setting CCR cache control register ICI and OCI bits.
Signed-off-by: Marek Vasut marek.vasut+renesas@mailbox.org --- Cc: Ilias Apalodimas ilias.apalodimas@linaro.org Cc: Nobuhiro Iwamatsu iwamatsu@nigauri.org Cc: Tom Rini trini@konsulko.com Cc: u-boot@lists.denx.de --- arch/sh/cpu/sh4/cache.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/arch/sh/cpu/sh4/cache.c b/arch/sh/cpu/sh4/cache.c index d3c480e79ed..99acc599965 100644 --- a/arch/sh/cpu/sh4/cache.c +++ b/arch/sh/cpu/sh4/cache.c @@ -33,8 +33,9 @@ static inline void cache_wback_all(void) } }
-#define CACHE_ENABLE 0 -#define CACHE_DISABLE 1 +#define CACHE_ENABLE 0 +#define CACHE_DISABLE 1 +#define CACHE_INVALIDATE 2
static int cache_control(unsigned int cmd) { @@ -46,7 +47,9 @@ static int cache_control(unsigned int cmd) if (ccr & CCR_CACHE_ENABLE) cache_wback_all();
- if (cmd == CACHE_DISABLE) + if (cmd == CACHE_INVALIDATE) + outl(CCR_CACHE_ICI | ccr, CCR); + else if (cmd == CACHE_DISABLE) outl(CCR_CACHE_STOP, CCR); else outl(CCR_CACHE_INIT, CCR); @@ -103,7 +106,7 @@ void icache_disable(void)
void invalidate_icache_all(void) { - puts("No arch specific invalidate_icache_all available!\n"); + cache_control(CACHE_INVALIDATE); }
int icache_status(void)