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| author | Greg Ungerer <gerg@uclinux.org> | 2011-10-18 16:16:43 +1000 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2011-12-30 10:20:37 +1000 |
| commit | d49316e84bbad307543c50be53555ca9a768f31d (patch) | |
| tree | e68b95c71ea0c60cf3d8656ee9f4e4008bdc8420 /arch | |
| parent | 60610192559d430dd24d9b508ae9d8d249709af9 (diff) | |
| download | blackbird-op-linux-d49316e84bbad307543c50be53555ca9a768f31d.tar.gz blackbird-op-linux-d49316e84bbad307543c50be53555ca9a768f31d.zip | |
m68k: use ColdFire MMU read/write bit flags when ioremapping
The ColdFire MMU has separate read and write bits, unlike the Motorola
m68k MMU which has a single read-only bit.
Define a _PAGE_READWRITE value for the Motorola MMU, which is 0, so we
can unconditionaly include that in the page table entry bits when setting
up ioremapped pages.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/m68k/include/asm/motorola_pgtable.h | 1 | ||||
| -rw-r--r-- | arch/m68k/mm/kmap.c | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/m68k/include/asm/motorola_pgtable.h b/arch/m68k/include/asm/motorola_pgtable.h index 45bd3f589bf0..e0fdd4d08075 100644 --- a/arch/m68k/include/asm/motorola_pgtable.h +++ b/arch/m68k/include/asm/motorola_pgtable.h @@ -8,6 +8,7 @@ #define _PAGE_PRESENT 0x001 #define _PAGE_SHORT 0x002 #define _PAGE_RONLY 0x004 +#define _PAGE_READWRITE 0x000 #define _PAGE_ACCESSED 0x008 #define _PAGE_DIRTY 0x010 #define _PAGE_SUPER 0x080 /* 68040 supervisor only */ diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c index 69345849454b..1cc2bed4c3dd 100644 --- a/arch/m68k/mm/kmap.c +++ b/arch/m68k/mm/kmap.c @@ -171,7 +171,8 @@ void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cachefla break; } } else { - physaddr |= (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_DIRTY); + physaddr |= (_PAGE_PRESENT | _PAGE_ACCESSED | + _PAGE_DIRTY | _PAGE_READWRITE); switch (cacheflag) { case IOMAP_NOCACHE_SER: case IOMAP_NOCACHE_NONSER: |
