arc: add stubs for map_physmem() and unmap_physmem()

[people/ms/u-boot.git] / arch / arc / include / asm / io.h

diff --git a/arch/arc/include/asm/io.h b/arch/arc/include/asm/io.h
index 24b7337308a4e7f9efadf74ae7a066f149c26f26..281682c8b45abdfb6b19546c91187569c31185d3 100644 (file)
--- a/arch/arc/include/asm/io.h
+++ b/arch/arc/include/asm/io.h
@@ -10,6 +10,30 @@
 #include <linux/types.h>
 #include <asm/byteorder.h>
 
 #include <linux/types.h>
 #include <asm/byteorder.h>
 

+/*
+ * 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 *)((unsigned long)paddr);
+}
+
+/*
+ * Take down a mapping set up by map_physmem().
+ */
+static inline void unmap_physmem(void *vaddr, unsigned long flags)
+{
+
+}
+

 static inline void sync(void)
 {
        /* Not yet implemented */
 static inline void sync(void)
 {
        /* Not yet implemented */