imported Freescale specific U-Boot additions for i.MX28,... release L2.6.31_10.08.01

[karo-tx-uboot.git] / include / asm-nios2 / io.h

diff --git a/include/asm-nios2/io.h b/include/asm-nios2/io.h
index 0fab53bf0e9ead5eb60825854f51e2d8bdf1c07f..01d11efeceab03a4d0e36a1590922002da5ae70f 100755 (executable)
--- a/include/asm-nios2/io.h
+++ b/include/asm-nios2/io.h
@@ -24,12 +24,52 @@
 #ifndef __ASM_NIOS2_IO_H_
 #define __ASM_NIOS2_IO_H_
 
-#define sync() asm volatile ("sync" : : : "memory");
+static inline void sync(void)
+{
+       __asm__ __volatile__ ("sync" : : : "memory");
+}
+
+/*
+ * 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);
+}
 
 extern unsigned char inb (unsigned char *port);
 extern unsigned short inw (unsigned short *port);
 extern unsigned inl (unsigned port);
 
+#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( "ldbio %0, 0(%1)" :"=r"(val) : "r" (addr)); val;})