1 files changed, 35 insertions, 0 deletions
diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
new file mode 100644
index 0000000..2cfc0a7
--- /dev/null
+++ b/arch/sh/include/asm/cache.h
@@ -0,0 +1,35 @@
+#ifndef __ASM_SH_CACHE_H
+#define __ASM_SH_CACHE_H
+
+#if defined(CONFIG_SH4) || defined(CONFIG_SH4A)
+
+int cache_control(unsigned int cmd);
+
+#define L1_CACHE_BYTES 32
+struct __large_struct { unsigned long buf[100]; };
+#define __m(x) (*(struct __large_struct *)(x))
+
+void dcache_wback_range(u32 start, u32 end)
+{
+	u32 v;
+
+	start &= ~(L1_CACHE_BYTES - 1);
+	for (v = start; v < end; v += L1_CACHE_BYTES) {
+		asm volatile ("ocbwb     %0" :	/* no output */
+			      : "m" (__m(v)));
+	}
+}
+
+void dcache_invalid_range(u32 start, u32 end)
+{
+	u32 v;
+
+	start &= ~(L1_CACHE_BYTES - 1);
+	for (v = start; v < end; v += L1_CACHE_BYTES) {
+		asm volatile ("ocbi     %0" :	/* no output */
+			      : "m" (__m(v)));
+	}
+}
+#endif /* CONFIG_SH4 || CONFIG_SH4A */
+
+#endif	/* __ASM_SH_CACHE_H */