diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/m32r/boot/setup.S | 15 | ||||
| -rw-r--r-- | arch/m32r/mm/cache.c | 28 |
2 files changed, 33 insertions, 10 deletions
diff --git a/arch/m32r/boot/setup.S b/arch/m32r/boot/setup.S index 742669fab8a..398542507d8 100644 --- a/arch/m32r/boot/setup.S +++ b/arch/m32r/boot/setup.S @@ -1,11 +1,10 @@ /* * linux/arch/m32r/boot/setup.S -- A setup code. * - * Copyright (C) 2001, 2002 Hiroyuki Kondo, Hirokazu Takata, - * and Hitoshi Yamamoto + * Copyright (C) 2001-2005 Hiroyuki Kondo, Hirokazu Takata, + * Hitoshi Yamamoto, Hayato Fujiwara * */ -/* $Id$ */ #include <linux/linkage.h> #include <asm/segment.h> @@ -81,6 +80,16 @@ ENTRY(boot) ; ldi r1, #0x00 ; cache off st r1, @r0 #elif defined(CONFIG_CHIP_M32104) + ldi r0, #-96 ; DNCR0 + seth r1, #0x0060 ; from 0x00600000 + or3 r1, r1, #0x0005 ; size 2MB + st r1, @r0 + seth r1, #0x0100 ; from 0x01000000 + or3 r1, r1, #0x0003 ; size 16MB + st r1, @+r0 + seth r1, #0x0200 ; from 0x02000000 + or3 r1, r1, #0x0002 ; size 32MB + st r1, @+r0 ldi r0, #-4 ;LDIMM (r0, M32R_MCCR) ldi r1, #0x703 ; cache on (with invalidation) st r1, @r0 diff --git a/arch/m32r/mm/cache.c b/arch/m32r/mm/cache.c index c6f72a64ae1..9f54dd93701 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... */ } |