1 files changed, 48 insertions, 0 deletions
diff --git a/arch/ppc/boot/of1275/map.c b/arch/ppc/boot/of1275/map.c
new file mode 100644
index 00000000000..443256c6f6d
--- /dev/null
+++ b/arch/ppc/boot/of1275/map.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) Paul Mackerras 1997.
+ * Copyright (C) Leigh Brown 2002.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include "of1275.h"
+#include "nonstdio.h"
+
+extern ihandle of_prom_mmu;
+
+int
+map(unsigned int phys, unsigned int virt, unsigned int size)
+{
+    struct prom_args {
+	char *service;
+	int nargs;
+	int nret;
+	char *method;
+	ihandle mmu_ihandle;
+	int misc;
+	unsigned int size;
+	unsigned int virt;
+	unsigned int phys;
+	int ret0;
+    } args;
+
+    if (of_prom_mmu == 0) {
+    	printf("map() called, no MMU found\n");
+    	return -1;
+    }
+    args.service = "call-method";
+    args.nargs = 6;
+    args.nret = 1;
+    args.method = "map";
+    args.mmu_ihandle = of_prom_mmu;
+    args.misc = 0;
+    args.phys = phys;
+    args.virt = virt;
+    args.size = size;
+    (*of_prom_entry)(&args);
+
+    return (int)args.ret0;
+}