diff options
Diffstat (limited to 'include/asm-blackfin/io.h')
-rw-r--r-- | include/asm-blackfin/io.h | 99 |
1 files changed, 67 insertions, 32 deletions
diff --git a/include/asm-blackfin/io.h b/include/asm-blackfin/io.h index 512e13d1ca..2149685c17 100644 --- a/include/asm-blackfin/io.h +++ b/include/asm-blackfin/io.h @@ -27,7 +27,12 @@ #ifdef __KERNEL__ -#include <linux/config.h> +#include <asm/blackfin.h> + +static inline void sync(void) +{ + SSYNC(); +} /* function prototypes for CF support */ extern void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words); @@ -35,11 +40,6 @@ extern void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words); extern unsigned char cf_inb(volatile unsigned char *addr); extern void cf_outb(unsigned char val, volatile unsigned char *addr); -static inline void sync(void) -{ - __builtin_bfin_ssync(); -} - /* * Given a physical address and a length, return a virtual address * that can be used to access the memory range with the caching @@ -77,37 +77,72 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags) * memory location directly. */ -#define readb(addr) ({ unsigned char __v = (*(volatile unsigned char *) (addr));asm("ssync;"); __v; }) -#define readw(addr) ({ unsigned short __v = (*(volatile unsigned short *) (addr)); asm("ssync;");__v; }) -#define readl(addr) ({ unsigned int __v = (*(volatile unsigned int *) (addr));asm("ssync;"); __v; }) +#ifndef __ASSEMBLY__ + +static inline unsigned char readb(const volatile void *addr) +{ + unsigned int val; + int tmp; + + __asm__ __volatile__ ("cli %1;\n\t" + "NOP; NOP; SSYNC;\n\t" + "%0 = b [%2] (z);\n\t" + "sti %1;\n\t" + : "=d"(val), "=d"(tmp): "a"(addr)); + + return (unsigned char) val; +} + +static inline unsigned short readw(const volatile void *addr) +{ + unsigned int val; + int tmp; + + __asm__ __volatile__ ("cli %1;\n\t" + "NOP; NOP; SSYNC;\n\t" + "%0 = w [%2] (z);\n\t" + "sti %1;\n\t" + : "=d"(val), "=d"(tmp): "a"(addr)); + + return (unsigned short) val; +} -#define writeb(b,addr) {((*(volatile unsigned char *) (addr)) = (b)); asm("ssync;");} -#define writew(b,addr) {((*(volatile unsigned short *) (addr)) = (b)); asm("ssync;");} -#define writel(b,addr) {((*(volatile unsigned int *) (addr)) = (b)); asm("ssync;");} +static inline unsigned int readl(const volatile void *addr) +{ + unsigned int val; + int tmp; + + __asm__ __volatile__ ("cli %1;\n\t" + "NOP; NOP; SSYNC;\n\t" + "%0 = [%2];\n\t" + "sti %1;\n\t" + : "=d"(val), "=d"(tmp): "a"(addr)); + return val; +} -#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)) +#define __raw_readb readb +#define __raw_readw readw +#define __raw_readl readl -#define inb_p(addr) readb((addr) + BF533_PCIIO_BASE) -#define inb(addr) cf_inb((volatile unsigned char*)(addr)) +#endif /* __ASSEMBLY__ */ -#define outb(x,addr) cf_outb((unsigned char)(x), (volatile unsigned char*)(addr)) -#define outb_p(x,addr) outb(x, (addr) + BF533_PCIIO_BASE) +#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)) +#define __raw_writeb writeb +#define __raw_writew writew +#define __raw_writel writel -#define inw(addr) readw((addr) + BF533_PCIIO_BASE) -#define inl(addr) readl((addr) + BF533_PCIIO_BASE) +#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)) -#define outw(x,addr) writew(x, (addr) + BF533_PCIIO_BASE) -#define outl(x,addr) writel(x, (addr) + BF533_PCIIO_BASE) +#define inb(addr) cf_inb((volatile unsigned char *)(addr)) +#define outb(x, addr) cf_outb((unsigned char)(x), (volatile unsigned char *)(addr)) -#define insb(port, addr, count) memcpy((void*)addr, (void*)(BF533_PCIIO_BASE + port), count) -#define insw(port, addr, count) cf_insw((unsigned short*)addr, (unsigned short*)(port), (count)) -#define insl(port, addr, count) memcpy((void*)addr, (void*)(BF533_PCIIO_BASE + port), (4*count)) +#define insw(port, addr, count) cf_insw((unsigned short *)addr, (unsigned short *)(port), (count)) -#define outsb(port,addr,count) memcpy((void*)(BF533_PCIIO_BASE + port), (void*)addr, count) -#define outsw(port,addr,count) cf_outsw((unsigned short*)(port), (unsigned short*)addr, (count)) -#define outsl(port,addr,count) memcpy((void*)(BF533_PCIIO_BASE + port), (void*)addr, (4*count)) +#define outsw(port, addr, count) cf_outsw((unsigned short *)(port), (unsigned short *)addr, (count)) #define IO_SPACE_LIMIT 0xffff @@ -143,9 +178,9 @@ extern inline void *ioremap_fullcache(unsigned long physaddr, extern void iounmap(void *addr); extern void blkfin_inv_cache_all(void); -#define dma_cache_inv(_start,_size) do { blkfin_inv_cache_all();} while (0) -#define dma_cache_wback(_start,_size) do { } while (0) -#define dma_cache_wback_inv(_start,_size) do { blkfin_inv_cache_all();} while (0) +#define dma_cache_inv(_start, _size) do { blkfin_inv_cache_all(); } while (0) +#define dma_cache_wback(_start, _size) do { } while (0) +#define dma_cache_wback_inv(_start, _size) do { blkfin_inv_cache_all(); } while (0) #endif #endif |