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Commit 99dc5c0c authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Disable MMUCR_AT for SH-4 nommu. 



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: default avatarPaul Mundt <lethal@linux-sh.org>
parent 94a46d3c

arch/sh/include/cpu-sh4/cpu/mmu_context.h

+9 −2
Original line number Diff line number Diff line
@@ -32,6 +32,12 @@ 
#define MMU_UTLB_DATA_ARRAY2	0xF7800000

#define MMU_PAGE_ASSOC_BIT	0x80



#ifdef CONFIG_MMU

#define MMUCR_AT		(1 << 0)

#else

#define MMUCR_AT		(0)

#endif



#define MMUCR_TI		(1 << 2)



#define MMUCR_URB		0x00FC0000
@@ -65,7 +71,8 @@ 
#endif



#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 EXPEVT	0xff000024