diff options
author | Magnus Damm <damm@igel.co.jp> | 2009-04-29 23:56:37 -0400 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2009-04-29 23:56:37 -0400 |
commit | e6be3a25861429166f945499c7ee616875bc3db9 (patch) | |
tree | b6eb123d55974846ce83665e786877a69bdeffef /arch/sh/include | |
parent | 4278600644dee621bd50d7498e244b135612e0f6 (diff) |
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>
Diffstat (limited to 'arch/sh/include')
-rw-r--r-- | arch/sh/include/asm/io.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h index 0454f8d68059..ef217344afcb 100644 --- a/arch/sh/include/asm/io.h +++ b/arch/sh/include/asm/io.h | |||
@@ -228,12 +228,6 @@ void __iounmap(void __iomem *addr); | |||
228 | unsigned long onchip_remap(unsigned long addr, unsigned long size, | 228 | unsigned long onchip_remap(unsigned long addr, unsigned long size, |
229 | const char *name); | 229 | const char *name); |
230 | extern void onchip_unmap(unsigned long vaddr); | 230 | extern void onchip_unmap(unsigned long vaddr); |
231 | #else | ||
232 | #define __ioremap(offset, size, flags) ((void __iomem *)(offset)) | ||
233 | #define __iounmap(addr) do { } while (0) | ||
234 | #define onchip_remap(addr, size, name) (addr) | ||
235 | #define onchip_unmap(addr) do { } while (0) | ||
236 | #endif /* CONFIG_MMU */ | ||
237 | 231 | ||
238 | static inline void __iomem * | 232 | static inline void __iomem * |
239 | __ioremap_mode(unsigned long offset, unsigned long size, unsigned long flags) | 233 | __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) | |||
268 | 262 | ||
269 | return __ioremap(offset, size, flags); | 263 | return __ioremap(offset, size, flags); |
270 | } | 264 | } |
265 | #else | ||
266 | #define onchip_remap(addr, size, name) (addr) | ||
267 | #define onchip_unmap(addr) do { } while (0) | ||
268 | #define __ioremap_mode(offset, size, flags) ((void __iomem *)(offset)) | ||
269 | #define __iounmap(addr) do { } while (0) | ||
270 | #endif /* CONFIG_MMU */ | ||
271 | 271 | ||
272 | #define ioremap(offset, size) \ | 272 | #define ioremap(offset, size) \ |
273 | __ioremap_mode((offset), (size), 0) | 273 | __ioremap_mode((offset), (size), 0) |