1 files changed, 43 insertions, 0 deletions
diff --git a/roms/u-boot/arch/sandbox/include/asm/io.h b/roms/u-boot/arch/sandbox/include/asm/io.h
new file mode 100644
index 00000000..79560411
--- /dev/null
+++ b/roms/u-boot/arch/sandbox/include/asm/io.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __SANDBOX_ASM_IO_H
+#define __SANDBOX_ASM_IO_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)
+
+void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags);
+
+/*
+ * Take down a mapping set up by map_physmem().
+ */
+static inline void unmap_physmem(void *vaddr, unsigned long flags)
+{
+
+}
+
+/* For sandbox, we want addresses to point into our RAM buffer */
+static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
+{
+	return map_physmem(paddr, len, MAP_WRBACK);
+}
+
+static inline void unmap_sysmem(const void *vaddr)
+{
+}
+
+/* Map from a pointer to our RAM buffer */
+phys_addr_t map_to_sysmem(const void *ptr);
+
+#endif