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sh: Disable MMUCR_AT for SH-4 nommu.

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Presently address translation is default-enabled regardless of whether
CONFIG_MMU is set or not in the SH-4 case, this fixes it up, and also
makes the control init word a bit more readable in the process.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2010-04-07 17:08:32 +09:00
parent 94a46d3cde
commit 99dc5c0ca9
1 changed files with 9 additions and 2 deletions
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11
arch/sh/include/cpu-sh4/cpu/mmu_context.h
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@ -32,7 +32,13 @@
#define MMU_UTLB_DATA_ARRAY2 0xF7800000 #define MMU_UTLB_DATA_ARRAY2 0xF7800000
#define MMU_PAGE_ASSOC_BIT 0x80 #define MMU_PAGE_ASSOC_BIT 0x80
#define MMUCR_TI (1<<2) #ifdef CONFIG_MMU
#define MMUCR_AT (1 << 0)
#else
#define MMUCR_AT (0)
#endif
#define MMUCR_TI (1 << 2)
#define MMUCR_URB 0x00FC0000 #define MMUCR_URB 0x00FC0000
#define MMUCR_URB_SHIFT 18 #define MMUCR_URB_SHIFT 18
@ -65,7 +71,8 @@
#endif #endif
#define MMU_NTLB_ENTRIES 64 #define MMU_NTLB_ENTRIES 64
#define MMU_CONTROL_INIT (0x05|MMUCR_SQMD|MMUCR_ME|MMUCR_SE|MMUCR_AEX) #define MMU_CONTROL_INIT (MMUCR_AT | MMUCR_TI | MMUCR_SQMD | \
MMUCR_ME | MMUCR_SE | MMUCR_AEX)
#define TRA 0xff000020 #define TRA 0xff000020
#define EXPEVT 0xff000024 #define EXPEVT 0xff000024