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sh: cache: Fill in invalidate_icache_all()

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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
This commit is contained in:
Marek Vasut
2024-09-10 01:18:09 +02:00
parent 47e544f576
commit 0034edc2f4
1 changed files with 7 additions and 4 deletions
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11
arch/sh/cpu/sh4/cache.c
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@@ -33,8 +33,9 @@ static inline void cache_wback_all(void)
} }
} }
#define CACHE_ENABLE 0 #define CACHE_ENABLE 0
#define CACHE_DISABLE 1 #define CACHE_DISABLE 1
#define CACHE_INVALIDATE 2
static int cache_control(unsigned int cmd) static int cache_control(unsigned int cmd)
{ {
@@ -46,7 +47,9 @@ static int cache_control(unsigned int cmd)
if (ccr & CCR_CACHE_ENABLE) if (ccr & CCR_CACHE_ENABLE)
cache_wback_all(); 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); outl(CCR_CACHE_STOP, CCR);
else else
outl(CCR_CACHE_INIT, CCR); outl(CCR_CACHE_INIT, CCR);
@@ -103,7 +106,7 @@ void icache_disable(void)
void invalidate_icache_all(void) void invalidate_icache_all(void)
{ {
puts("No arch specific invalidate_icache_all available!\n"); cache_control(CACHE_INVALIDATE);
} }
int icache_status(void) int icache_status(void)