ARM: no need to call cache functions when MMU is disabled
Without MMU enabled we do not need to call __mmu_cache_* as the caches are not enabled. Calling flush_icache() before jumping to new code is enough. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -30,6 +30,7 @@
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#include <asm/memory.h>
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#include <asm/system_info.h>
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#include <asm/cputype.h>
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#include <asm/cache.h>
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/**
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* Enable processor's instruction cache
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@ -74,19 +75,9 @@ int icache_status(void)
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void arch_shutdown(void)
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{
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#ifdef CONFIG_MMU
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/* nearly the same as below, but this could also disable
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* second level cache.
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*/
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mmu_disable();
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#else
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asm volatile (
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"bl __mmu_cache_flush;"
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"bl __mmu_cache_off;"
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:
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:
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: "r0", "r1", "r2", "r3", "r6", "r10", "r12", "lr", "cc", "memory"
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);
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#endif
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flush_icache();
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}
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#ifdef CONFIG_THUMB2_BAREBOX
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