X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Fasm-nios%2Fio.h;h=8b788068b3d5482219fa6228486f418276f8bb0f;hb=fbcb7ece0ea1e364180f1cf963e0fa0ce7f6560d;hp=07499d966d5a6645daa61964e97b3941c197b787;hpb=05b47540aae996908e48e10a5ff8b69862aadef3;p=u-boot diff --git a/include/asm-nios/io.h b/include/asm-nios/io.h index 07499d966d..8b788068b3 100644 --- a/include/asm-nios/io.h +++ b/include/asm-nios/io.h @@ -23,24 +23,32 @@ #ifndef __ASM_NIOS_IO_H_ #define __ASM_NIOS_IO_H_ +#define __raw_writeb(v,a) (*(volatile unsigned char *)(a) = (v)) +#define __raw_writew(v,a) (*(volatile unsigned short *)(a) = (v)) +#define __raw_writel(v,a) (*(volatile unsigned int *)(a) = (v)) + +#define __raw_readb(a) (*(volatile unsigned char *)(a)) +#define __raw_readw(a) (*(volatile unsigned short *)(a)) +#define __raw_readl(a) (*(volatile unsigned int *)(a)) + #define readb(addr)\ ({unsigned char val;\ asm volatile( " pfxio 0 \n"\ - " ld %0, [%1] \n"\ + " ld %0, [%1] \n"\ " ext8d %0, %1 \n"\ :"=r"(val) : "r" (addr)); val;}) #define readw(addr)\ ({unsigned short val;\ asm volatile( " pfxio 0 \n"\ - " ld %0, [%1] \n"\ + " ld %0, [%1] \n"\ " ext16d %0, %1 \n"\ :"=r"(val) : "r" (addr)); val;}) #define readl(addr)\ ({unsigned long val;\ asm volatile( " pfxio 0 \n"\ - " ld %0, [%1] \n"\ + " ld %0, [%1] \n"\ :"=r"(val) : "r" (addr)); val;}) #define writeb(addr,val)\ @@ -97,4 +105,32 @@ static inline void outsl (unsigned long port, const void *src, unsigned long cou while (count--) outl (*p++, port); } +static inline void sync(void) +{ +} + +/* + * Given a physical address and a length, return a virtual address + * that can be used to access the memory range with the caching + * properties specified by "flags". + */ +#define MAP_NOCACHE (0) +#define MAP_WRCOMBINE (0) +#define MAP_WRBACK (0) +#define MAP_WRTHROUGH (0) + +static inline void * +map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) +{ + return (void *)paddr; +} + +/* + * Take down a mapping set up by map_physmem(). + */ +static inline void unmap_physmem(void *vaddr, unsigned long flags) +{ + +} + #endif /* __ASM_NIOS_IO_H_ */