diff options
Diffstat (limited to 'target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_io.h')
| -rw-r--r-- | target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_io.h | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_io.h b/target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_io.h new file mode 100644 index 0000000000..b2c7a46481 --- /dev/null +++ b/target/linux/coldfire/files-2.6.31/arch/m68k/include/asm/cf_io.h @@ -0,0 +1,191 @@ +/* + * linux/include/asm-m68k/cf_io.h + * + * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved. + * 9/30/08 JKM - Separated Coldfire pieces out from m68k. + */ + +#ifndef __CF_IO__ +#define __CF_IO__ + +#ifdef __KERNEL__ + +#include <linux/compiler.h> +#include <asm/raw_io.h> +#include <asm/virtconvert.h> + +#include <asm-generic/iomap.h> + +/* + * These should be valid on any ioremap()ed region + */ +#define readb(addr) in_8(addr) +#define writeb(val,addr) out_8((addr),(val)) +#define readw(addr) in_le16(addr) +#define writew(val,addr) out_le16((addr),(val)) +#define readl(addr) in_le32(addr) +#define writel(val,addr) out_le32((addr),(val)) + +#define readb_relaxed(addr) readb(addr) +#define readw_relaxed(addr) readw(addr) +#define readl_relaxed(addr) readl(addr) + +#ifdef CONFIG_PCI + +/* + * IO space in Coldfire + */ +/*#define HAVE_ARCH_PIO_SIZE 1 +#define PIO_OFFSET 0x00000000UL +#define PIO_RESERVED 0x100000000UL +#define PIO_MASK (PIO_RESERVED - 1) +*/ +#define inb_p inb +#define inw_p inw +#define inl_p inl +#define outb_p outb +#define outw_p outw +#define outl_p outl + +#ifndef CONFIG_COLDFIRE +#define inb(port) in_8(port) +#define outb(val,port) out_8((port),(val)) +#define inw(port) in_le16(port) +#define outw(val,port) out_le16((port),(val)) +#define inl(port) in_le32(port) +#define outl(val,port) out_le32((port),(val)) +#define insb(port, buf, nr) \ + raw_insb((u8 *)(port), (u8 *)(buf), (nr)) +#define outsb(port, buf, nr) \ + raw_outsb((u8 *)(port), (u8 *)(buf), (nr)) +#define insw(port, buf, nr) \ + raw_insw_swapw((u16 *)(port), (u16 *)(buf), (nr)) +#define outsw(port, buf, nr) \ + raw_outsw_swapw((u16 *)(port), (u16 *)(buf), (nr)) +#define insl(port, buf, nr) \ + raw_insw_swapw((u16 *)(port), (u16 *)(buf), (nr)<<1) +#define outsl(port, buf, nr) \ + raw_outsw_swapw((u16 *)(port), (u16 *)(buf), (nr)<<1) +#else +#define inb(port) pci_inb(port) +#define outb(val, port) pci_outb((val), (port)) +#define inw(port) pci_inw(port) +#define outw(val, port) pci_outw((val), (port)) +#define insb(a, b, c) \ + pci_insb((volatile unsigned char *)a, (unsigned char *)b, c) +#define insw(a, b, c) \ + pci_insw((volatile unsigned short *)a, (const unsigned short *)b, c) +#define insl(a, b, c) \ + pci_insl((volatile unsigned long *)a, (const unsigned long *)b, c) +#define outsb(a, b, c) \ + pci_outsb((volatile unsigned char *)a, (const unsigned char *)b, c) +#define outsw(a, b, c) \ + pci_outsw((volatile unsigned short *)a, (const unsigned short *)b, c) +#define outsl(a, b, c) \ + pci_outsl((volatile unsigned long *)a, (const unsigned long *)b, c) +#define inl(port) pci_inl(port) +#define outl(val, port) pci_outl((val), (port)) +#endif + +#else +/* no pci */ + +#define inb(port) in_8(port) +#define outb(val, port) out_8((port), (val)) +#define inw(port) in_le16(port) +#define outw(val, port) out_le16((port), (val)) +#define inl(port) in_le32(port) +#define outl(val, port) out_le32((port), (val)) +#define insb(port, buf, nr) \ + raw_insb((u8 *)(port), (u8 *)(buf), (nr)) +#define outsb(port, buf, nr) \ + raw_outsb((u8 *)(port), (u8 *)(buf), (nr)) +#define insw(port, buf, nr) \ + raw_insw_swapw((u16 *)(port), (u16 *)(buf), (nr)) +#define outsw(port, buf, nr) \ + raw_outsw_swapw((u16 *)(port), (u16 *)(buf), (nr)) +#define insl(port, buf, nr) \ + raw_insw_swapw((u16 *)(port), (u16 *)(buf), (nr)<<1) +#define outsl(port, buf, nr) \ + raw_outsw_swapw((u16 *)(port), (u16 *)(buf), (nr)<<1) + +#endif /* CONFIG_PCI */ + +#define mmiowb() + +static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size) +{ + return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); +} +static inline void __iomem *ioremap_nocache(unsigned long physaddr, unsigned long size) +{ + return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); +} +static inline void __iomem *ioremap_writethrough(unsigned long physaddr, + unsigned long size) +{ + return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); +} +static inline void __iomem *ioremap_fullcache(unsigned long physaddr, + unsigned long size) +{ + return __ioremap(physaddr, size, IOMAP_FULL_CACHING); +} + +static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count) +{ + __builtin_memset((void __force *) addr, val, count); +} +static inline void memcpy_fromio(void *dst, const volatile void __iomem *src, int count) +{ + __builtin_memcpy(dst, (void __force *) src, count); +} +static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int count) +{ + __builtin_memcpy((void __force *) dst, src, count); +} + +#define IO_SPACE_LIMIT 0xffffffff + +#endif /* __KERNEL__ */ + +#define __ARCH_HAS_NO_PAGE_ZERO_MAPPED 1 + +/* + * Convert a physical pointer to a virtual kernel pointer for /dev/mem + * access + */ +#define xlate_dev_mem_ptr(p) __va(p) + +/* + * Convert a virtual cached pointer to an uncached pointer + */ +#define xlate_dev_kmem_ptr(p) p + +#define __raw_readb(addr) \ + ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; }) +#define __raw_readw(addr) \ + ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; }) +#define __raw_readl(addr) \ + ({ unsigned long __v = (*(volatile unsigned long *) (addr)); __v; }) +#define __raw_writeb(b,addr) (void)((*(volatile unsigned char *) (addr)) = (b)) +#define __raw_writew(b,addr) (void)((*(volatile unsigned short *) (addr)) = (b)) +#define __raw_writel(b,addr) (void)((*(volatile unsigned int *) (addr)) = (b)) + +#define memset_io(a, b, c) memset((void *)(a), (b), (c)) +#define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c)) +#define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c)) + +#if !defined(readb) +#define readb(addr) \ + ({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; }) +#define readw(addr) \ + ({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; }) +#define readl(addr) \ + ({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; }) +#define writeb(b, addr) (void)((*(volatile unsigned char *) (addr)) = (b)) +#define writew(b, addr) (void)((*(volatile unsigned short *) (addr)) = (b)) +#define writel(b, addr) (void)((*(volatile unsigned int *) (addr)) = (b)) +#endif /* readb */ + +#endif /* _IO_H */ |