From 5ddcb3c35be995517a32799796e2acda90a784e0 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Tue, 26 Jun 2007 01:14:01 +0900 Subject: [MIPS] Make ioremap() work on TX39/49 special unmapped segment TX39XX and TX49XX have "reserved" segment in CKSEG3 area. 0xff000000-0xff3fffff on TX49XX and 0xff000000-0xfffeffff on TX39XX are reserved (unmapped, uncached). Controllers on these SoCs are placed in this segment. This patch add plat_ioremap() and plat_iounmap() to override default behavior and implement these hooks for TX39/TX49. Signed-off-by: Atsushi Nemoto Signed-off-by: Ralf Baechle --- include/asm-mips/io.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/asm-mips/io.h') diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h index 92ec2618560..12bcc1f9fba 100644 --- a/include/asm-mips/io.h +++ b/include/asm-mips/io.h @@ -178,6 +178,11 @@ extern void __iounmap(const volatile void __iomem *addr); static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size, unsigned long flags) { + void __iomem *addr = plat_ioremap(offset, size, flags); + + if (addr) + return addr; + #define __IS_LOW512(addr) (!((phys_t)(addr) & (phys_t) ~0x1fffffffULL)) if (cpu_has_64bit_addresses) { @@ -282,6 +287,9 @@ static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size, static inline void iounmap(const volatile void __iomem *addr) { + if (plat_iounmap(addr)) + return; + #define __IS_KSEG1(addr) (((unsigned long)(addr) & ~0x1fffffffUL) == CKSEG1) if (cpu_has_64bit_addresses || -- cgit v1.2.3-70-g09d2