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e92c95180b
Add support SH4 cache control and flash_cache function Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
35 lines
823 B
C
35 lines
823 B
C
#ifndef __ASM_SH_CACHE_H
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#define __ASM_SH_CACHE_H
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#if defined(CONFIG_SH4) || defined(CONFIG_SH4A)
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#define L1_CACHE_BYTES 32
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struct __large_struct { unsigned long buf[100]; };
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#define __m(x) (*(struct __large_struct *)(x))
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void dcache_wback_range(u32 start, u32 end)
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{
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u32 v;
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start &= ~(L1_CACHE_BYTES-1);
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for (v = start; v < end; v+=L1_CACHE_BYTES) {
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asm volatile("ocbwb %0"
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: /* no output */
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: "m" (__m(v)));
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}
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}
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void dcache_invalid_range(u32 start, u32 end)
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{
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u32 v;
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start &= ~(L1_CACHE_BYTES-1);
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for (v = start; v < end; v+=L1_CACHE_BYTES) {
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asm volatile("ocbi %0"
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: /* no output */
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: "m" (__m(v)));
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}
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}
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#endif /* CONFIG_SH4 || CONFIG_SH4A */
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#endif /* __ASM_SH_CACHE_H */
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