map_physmem should return a pointer that can be used by the CPU to
access the given memory - on MIPS simply returning the physical address
as it does prior to this patch doesn't achieve that. Instead return a
pointer to the memory within (c)kseg0, which matches up consistently
with the (c)kseg1 pointer that uncached mappings return via ioremap.
Signed-off-by: Paul Burton <paul.bur...@imgtec.com>
Cc: Daniel Schwierzeck <daniel.schwierz...@gmail.com>
---
arch/mips/include/asm/io.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index be9616a..45d7ca0 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -500,7 +500,7 @@ map_physmem(phys_addr_t paddr, unsigned long len, unsigned
long flags)
if (flags == MAP_NOCACHE)
return ioremap(paddr, len);
- return (void *)paddr;
+ return (void *)CKSEG0ADDR(paddr);
}
#define map_physmem map_physmem
--
2.10.0
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