#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)\
{
}
+/*
+ * 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)
+{
+
+}
+
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
#endif /* __ASM_NIOS_IO_H_ */