diff options
Diffstat (limited to 'arch/cris')
| -rw-r--r-- | arch/cris/include/asm/io.h | 171 |
1 files changed, 1 insertions, 170 deletions
diff --git a/arch/cris/include/asm/io.h b/arch/cris/include/asm/io.h index cce8664d5dd6..fe0b2a0ae03b 100644 --- a/arch/cris/include/asm/io.h +++ b/arch/cris/include/asm/io.h @@ -8,34 +8,6 @@ #include <asm-generic/iomap.h> #include <linux/kernel.h> -struct cris_io_operations -{ - u32 (*read_mem)(void *addr, int size); - void (*write_mem)(u32 val, int size, void *addr); - u32 (*read_io)(u32 port, void *addr, int size, int count); - void (*write_io)(u32 port, void *addr, int size, int count); -}; - -#ifdef CONFIG_PCI -extern struct cris_io_operations *cris_iops; -#else -#define cris_iops ((struct cris_io_operations*)NULL) -#endif - -/* - * Change virtual addresses to physical addresses and vv. - */ - -static inline unsigned long virt_to_phys(volatile void * address) -{ - return __pa(address); -} - -static inline void * phys_to_virt(unsigned long address) -{ - return __va(address); -} - extern void __iomem * __ioremap(unsigned long offset, unsigned long size, unsigned long flags); extern void __iomem * __ioremap_prot(unsigned long phys_addr, unsigned long size, pgprot_t prot); @@ -48,147 +20,6 @@ extern void iounmap(volatile void * __iomem addr); extern void __iomem * ioremap_nocache(unsigned long offset, unsigned long size); -/* - * IO bus memory addresses are also 1:1 with the physical address - */ -#define virt_to_bus virt_to_phys -#define bus_to_virt phys_to_virt - -/* - * readX/writeX() are used to access memory mapped devices. On some - * architectures the memory mapped IO stuff needs to be accessed - * differently. On the CRIS architecture, we just read/write the - * memory location directly. - */ -#ifdef CONFIG_PCI -#define PCI_SPACE(x) ((((unsigned)(x)) & 0x10000000) == 0x10000000) -#else -#define PCI_SPACE(x) 0 -#endif -static inline unsigned char readb(const volatile void __iomem *addr) -{ - if (PCI_SPACE(addr) && cris_iops) - return cris_iops->read_mem((void*)addr, 1); - else - return *(volatile unsigned char __force *) addr; -} -static inline unsigned short readw(const volatile void __iomem *addr) -{ - if (PCI_SPACE(addr) && cris_iops) - return cris_iops->read_mem((void*)addr, 2); - else - return *(volatile unsigned short __force *) addr; -} -static inline unsigned int readl(const volatile void __iomem *addr) -{ - if (PCI_SPACE(addr) && cris_iops) - return cris_iops->read_mem((void*)addr, 4); - else - return *(volatile unsigned int __force *) addr; -} -#define readb_relaxed(addr) readb(addr) -#define readw_relaxed(addr) readw(addr) -#define readl_relaxed(addr) readl(addr) -#define __raw_readb readb -#define __raw_readw readw -#define __raw_readl readl - -static inline void writeb(unsigned char b, volatile void __iomem *addr) -{ - if (PCI_SPACE(addr) && cris_iops) - cris_iops->write_mem(b, 1, (void*)addr); - else - *(volatile unsigned char __force *) addr = b; -} -static inline void writew(unsigned short b, volatile void __iomem *addr) -{ - if (PCI_SPACE(addr) && cris_iops) - cris_iops->write_mem(b, 2, (void*)addr); - else - *(volatile unsigned short __force *) addr = b; -} -static inline void writel(unsigned int b, volatile void __iomem *addr) -{ - if (PCI_SPACE(addr) && cris_iops) - cris_iops->write_mem(b, 4, (void*)addr); - else - *(volatile unsigned int __force *) addr = b; -} -#define writeb_relaxed(b, addr) writeb(b, addr) -#define writew_relaxed(b, addr) writew(b, addr) -#define writel_relaxed(b, addr) writel(b, addr) -#define __raw_writeb writeb -#define __raw_writew writew -#define __raw_writel writel - -#define mmiowb() - -#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)) - - -/* I/O port access. Normally there is no I/O space on CRIS but when - * Cardbus/PCI is enabled the request is passed through the bridge. - */ - -#define IO_SPACE_LIMIT 0xffff -#define inb(port) (cris_iops ? cris_iops->read_io(port,NULL,1,1) : 0) -#define inw(port) (cris_iops ? cris_iops->read_io(port,NULL,2,1) : 0) -#define inl(port) (cris_iops ? cris_iops->read_io(port,NULL,4,1) : 0) -#define insb(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,1,count) : 0) -#define insw(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,2,count) : 0) -#define insl(port,addr,count) (cris_iops ? cris_iops->read_io(port,addr,4,count) : 0) -static inline void outb(unsigned char data, unsigned int port) -{ - if (cris_iops) - cris_iops->write_io(port, (void *) &data, 1, 1); -} -static inline void outw(unsigned short data, unsigned int port) -{ - if (cris_iops) - cris_iops->write_io(port, (void *) &data, 2, 1); -} -static inline void outl(unsigned int data, unsigned int port) -{ - if (cris_iops) - cris_iops->write_io(port, (void *) &data, 4, 1); -} -static inline void outsb(unsigned int port, const void *addr, - unsigned long count) -{ - if (cris_iops) - cris_iops->write_io(port, (void *)addr, 1, count); -} -static inline void outsw(unsigned int port, const void *addr, - unsigned long count) -{ - if (cris_iops) - cris_iops->write_io(port, (void *)addr, 2, count); -} -static inline void outsl(unsigned int port, const void *addr, - unsigned long count) -{ - if (cris_iops) - cris_iops->write_io(port, (void *)addr, 4, count); -} - -#define inb_p(port) inb(port) -#define inw_p(port) inw(port) -#define inl_p(port) inl(port) -#define outb_p(val, port) outb((val), (port)) -#define outw_p(val, port) outw((val), (port)) -#define outl_p(val, port) outl((val), (port)) - -/* - * 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 +#include <asm-generic/io.h> #endif |