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-rw-r--r--include/asm-generic/io.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index e0ffa3d..a1caf2d 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -307,7 +307,11 @@ static inline void *phys_to_virt(unsigned long address)
/*
* Change "struct page" to physical address.
+ *
+ * This implementation is for the no-MMU case only... if you have an MMU
+ * you'll need to provide your own definitions.
*/
+#ifndef CONFIG_MMU
static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size)
{
return (void __iomem*) (unsigned long)offset;
@@ -326,6 +330,7 @@ static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size)
static inline void iounmap(void *addr)
{
}
+#endif /* CONFIG_MMU */
#ifndef CONFIG_GENERIC_IOMAP
static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
@@ -342,7 +347,7 @@ extern void ioport_unmap(void __iomem *p);
#endif /* CONFIG_GENERIC_IOMAP */
#define xlate_dev_kmem_ptr(p) p
-#define xlate_dev_mem_ptr(p) ((void *) (p))
+#define xlate_dev_mem_ptr(p) __va(p)
#ifndef virt_to_bus
static inline unsigned long virt_to_bus(volatile void *address)
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