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Diffstat (limited to 'arch/m32r/mm/cache.c')
-rw-r--r--arch/m32r/mm/cache.c28
1 files changed, 21 insertions, 7 deletions
diff --git a/arch/m32r/mm/cache.c b/arch/m32r/mm/cache.c
index c6f72a64ae12..9f54dd937013 100644
--- a/arch/m32r/mm/cache.c
+++ b/arch/m32r/mm/cache.c
@@ -1,7 +1,7 @@
/*
* linux/arch/m32r/mm/cache.c
*
- * Copyright (C) 2002 Hirokazu Takata
+ * Copyright (C) 2002-2005 Hirokazu Takata, Hayato Fujiwara
*/
#include <linux/config.h>
@@ -9,7 +9,8 @@
#undef MCCR
-#if defined(CONFIG_CHIP_XNUX2) || defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_VDEC2) || defined(CONFIG_CHIP_OPSP)
+#if defined(CONFIG_CHIP_XNUX2) || defined(CONFIG_CHIP_M32700) \
+ || defined(CONFIG_CHIP_VDEC2) || defined(CONFIG_CHIP_OPSP)
/* Cache Control Register */
#define MCCR ((volatile unsigned long*)0xfffffffc)
#define MCCR_CC (1UL << 7) /* Cache mode modify bit */
@@ -27,7 +28,7 @@
#define MCCR_IIV (1UL << 0) /* I-cache invalidate */
#define MCCR_ICACHE_INV MCCR_IIV
#elif defined(CONFIG_CHIP_M32104)
-#define MCCR ((volatile unsigned long*)0xfffffffc)
+#define MCCR ((volatile unsigned short*)0xfffffffe)
#define MCCR_IIV (1UL << 8) /* I-cache invalidate */
#define MCCR_DIV (1UL << 9) /* D-cache invalidate */
#define MCCR_DCB (1UL << 10) /* D-cache copy back */
@@ -36,7 +37,7 @@
#define MCCR_ICACHE_INV MCCR_IIV
#define MCCR_DCACHE_CB MCCR_DCB
#define MCCR_DCACHE_CBINV (MCCR_DIV|MCCR_DCB)
-#endif /* CONFIG_CHIP_XNUX2 || CONFIG_CHIP_M32700 */
+#endif
#ifndef MCCR
#error Unknown cache type.
@@ -47,29 +48,42 @@
void _flush_cache_all(void)
{
#if defined(CONFIG_CHIP_M32102)
+ unsigned char mccr;
*MCCR = MCCR_ICACHE_INV;
+#elif defined(CONFIG_CHIP_M32104)
+ unsigned short mccr;
+
+ /* Copyback and invalidate D-cache */
+ /* Invalidate I-cache */
+ *MCCR |= (MCCR_ICACHE_INV | MCCR_DCACHE_CBINV);
#else
unsigned long mccr;
/* Copyback and invalidate D-cache */
/* Invalidate I-cache */
*MCCR = MCCR_ICACHE_INV | MCCR_DCACHE_CBINV;
- while ((mccr = *MCCR) & MCCR_IIV); /* loop while invalidating... */
#endif
+ while ((mccr = *MCCR) & MCCR_IIV); /* loop while invalidating... */
}
/* Copy back D-cache and invalidate I-cache all */
void _flush_cache_copyback_all(void)
{
#if defined(CONFIG_CHIP_M32102)
+ unsigned char mccr;
*MCCR = MCCR_ICACHE_INV;
+#elif defined(CONFIG_CHIP_M32104)
+ unsigned short mccr;
+
+ /* Copyback and invalidate D-cache */
+ /* Invalidate I-cache */
+ *MCCR |= (MCCR_ICACHE_INV | MCCR_DCACHE_CB);
#else
unsigned long mccr;
/* Copyback D-cache */
/* Invalidate I-cache */
*MCCR = MCCR_ICACHE_INV | MCCR_DCACHE_CB;
- while ((mccr = *MCCR) & MCCR_IIV); /* loop while invalidating... */
-
#endif
+ while ((mccr = *MCCR) & MCCR_IIV); /* loop while invalidating... */
}