diff options
Diffstat (limited to 'include/asm-arm/io.h')
| -rw-r--r-- | include/asm-arm/io.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h index ae69db4a101..fd0147e52db 100644 --- a/include/asm-arm/io.h +++ b/include/asm-arm/io.h @@ -42,9 +42,9 @@ extern void __raw_writesb(void __iomem *addr, const void *data, int bytelen); extern void __raw_writesw(void __iomem *addr, const void *data, int wordlen); extern void __raw_writesl(void __iomem *addr, const void *data, int longlen); -extern void __raw_readsb(void __iomem *addr, void *data, int bytelen); -extern void __raw_readsw(void __iomem *addr, void *data, int wordlen); -extern void __raw_readsl(void __iomem *addr, void *data, int longlen); +extern void __raw_readsb(const void __iomem *addr, void *data, int bytelen); +extern void __raw_readsw(const void __iomem *addr, void *data, int wordlen); +extern void __raw_readsl(const void __iomem *addr, void *data, int longlen); #define __raw_writeb(v,a) (__chk_io_ptr(a), *(volatile unsigned char __force *)(a) = (v)) #define __raw_writew(v,a) (__chk_io_ptr(a), *(volatile unsigned short __force *)(a) = (v)) @@ -56,7 +56,12 @@ extern void __raw_readsl(void __iomem *addr, void *data, int longlen); /* * Architecture ioremap implementation. + * + * __ioremap takes CPU physical address. + * + * __ioremap_pfn takes a Page Frame Number and an offset into that page */ +extern void __iomem * __ioremap_pfn(unsigned long, unsigned long, size_t, unsigned long); extern void __iomem * __ioremap(unsigned long, size_t, unsigned long); extern void __iounmap(void __iomem *addr); @@ -261,6 +266,7 @@ out: * * ioremap takes a PCI memory address, as specified in * Documentation/IO-mapping.txt. + * */ #ifndef __arch_ioremap #define ioremap(cookie,size) __ioremap(cookie,size,0) |