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| author | Magnus Damm <damm@igel.co.jp> | 2009-04-30 12:56:37 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-04-30 12:56:37 +0900 |
| commit | e6be3a25861429166f945499c7ee616875bc3db9 (patch) | |
| tree | b6eb123d55974846ce83665e786877a69bdeffef | |
| parent | 4278600644dee621bd50d7498e244b135612e0f6 (diff) | |
| download | kernel_samsung_smdk4412-e6be3a25861429166f945499c7ee616875bc3db9.zip kernel_samsung_smdk4412-e6be3a25861429166f945499c7ee616875bc3db9.tar.gz kernel_samsung_smdk4412-e6be3a25861429166f945499c7ee616875bc3db9.tar.bz2 | |
sh: pass through ioremap() for non-mmu processors.
All 32-bit SuperH processors currently go through __ioremap_mode()
and check for IO_TRAPPED and directly mapped segments. With this
patch we simplify the MMU less case with a pass through version of
__ioremap_mode() which just returns the physical address.
The effects of this is change are:
- fix non-MMU ioremap() of high address hardware blocks (sh7203 CMT)
- make sure IO_TRAPPED is not selected
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| -rw-r--r-- | arch/sh/boards/Kconfig | 6 | ||||
| -rw-r--r-- | arch/sh/include/asm/io.h | 12 |
2 files changed, 9 insertions, 9 deletions
diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig index dcc1af8..99e2d47 100644 --- a/arch/sh/boards/Kconfig +++ b/arch/sh/boards/Kconfig @@ -121,7 +121,7 @@ config SH_RTS7751R2D bool "RTS7751R2D" depends on CPU_SUBTYPE_SH7751R select SYS_SUPPORTS_PCI - select IO_TRAPPED + select IO_TRAPPED if MMU help Select RTS7751R2D if configuring for a Renesas Technology Sales SH-Graphics board. @@ -145,13 +145,13 @@ config SH_HIGHLANDER bool "Highlander" depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 select SYS_SUPPORTS_PCI - select IO_TRAPPED + select IO_TRAPPED if MMU config SH_SH7785LCR bool "SH7785LCR" depends on CPU_SUBTYPE_SH7785 select SYS_SUPPORTS_PCI - select IO_TRAPPED + select IO_TRAPPED if MMU config SH_SH7785LCR_29BIT_PHYSMAPS bool "SH7785LCR 29bit physmaps" diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h index 0454f8d..ef21734 100644 --- a/arch/sh/include/asm/io.h +++ b/arch/sh/include/asm/io.h @@ -228,12 +228,6 @@ void __iounmap(void __iomem *addr); unsigned long onchip_remap(unsigned long addr, unsigned long size, const char *name); extern void onchip_unmap(unsigned long vaddr); -#else -#define __ioremap(offset, size, flags) ((void __iomem *)(offset)) -#define __iounmap(addr) do { } while (0) -#define onchip_remap(addr, size, name) (addr) -#define onchip_unmap(addr) do { } while (0) -#endif /* CONFIG_MMU */ static inline void __iomem * __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags) @@ -268,6 +262,12 @@ __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags) return __ioremap(offset, size, flags); } +#else +#define onchip_remap(addr, size, name) (addr) +#define onchip_unmap(addr) do { } while (0) +#define __ioremap_mode(offset, size, flags) ((void __iomem *)(offset)) +#define __iounmap(addr) do { } while (0) +#endif /* CONFIG_MMU */ #define ioremap(offset, size) \ __ioremap_mode((offset), (size), 0) |