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arm: implement invalidate_icache_all on ARM11

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In EFI sub-system we rely on invalidate_icache_all() to invalidate the
instruction cache after loading binaries. Add the missing implementation on
ARM1136, ARM1176.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt 2024-06-16 19:31:04 +02:00 committed by Tom Rini
parent 7d602334f6
commit 2da287ad13
1 changed files with 12 additions and 0 deletions
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12
arch/arm/cpu/arm11/cpu.c
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@ -117,3 +117,15 @@ void enable_caches(void)
#endif
}
#endif
#if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
/* Invalidate entire I-cache */
void invalidate_icache_all(void)
{
unsigned long i = 0;
asm ("mcr p15, 0, %0, c7, c5, 0" : : "r" (i));
}
#else
void invalidate_icache_all(void) {}
#endif