X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Fasm-i386%2Fio.h;h=2c57140fb39047cf0a354b3fd5228f0909f10621;hb=6a19c46cae43c16c528eddefae3db97134f1915d;hp=e64d788fa758cbba566688e22a967765a7252a18;hpb=19bf91f9628f80a55d4f171df71041574882b3d6;p=oweals%2Fu-boot.git

diff --git a/include/asm-i386/io.h b/include/asm-i386/io.h
index e64d788fa7..2c57140fb3 100644
--- a/include/asm-i386/io.h
+++ b/include/asm-i386/io.h
@@ -205,4 +205,28 @@ 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