X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Fasm-nios2%2Fio.h;h=01d11efeceab03a4d0e36a1590922002da5ae70f;hb=039594a4301dadceb267db5e8b9c8c78b1bb86b5;hp=54cbd57c06e8d2a6e7cf317eb41230a10606a9dd;hpb=812711ce6b3a386125dcf0d6a59588e461abbb87;p=oweals%2Fu-boot.git

diff --git a/include/asm-nios2/io.h b/include/asm-nios2/io.h
index 54cbd57c06..01d11efece 100644
--- a/include/asm-nios2/io.h
+++ b/include/asm-nios2/io.h
@@ -29,6 +29,35 @@ 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);