1 files changed, 57 insertions, 0 deletions

diff --git a/arch/powerpc/boot/fsl-soc.c b/arch/powerpc/boot/fsl-soc.c
new file mode 100644
index 000000000000..b835ed69e1a1
--- /dev/null
+++ b/arch/powerpc/boot/fsl-soc.c
@@ -0,0 +1,57 @@
+/*
+ * Freescale SOC support functions
+ *
+ * Author: Scott Wood <scottwood@freescale.com>
+ *
+ * Copyright (c) 2007 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include "ops.h"
+#include "types.h"
+#include "fsl-soc.h"
+#include "stdio.h"
+
+static u32 prop_buf[MAX_PROP_LEN / 4];
+
+u32 *fsl_get_immr(void)
+{
+        void *soc;
+        unsigned long ret = 0;
+
+        soc = find_node_by_devtype(NULL, "soc");
+        if (soc) {
+                int size;
+                u32 naddr;
+
+                size = getprop(soc, "#address-cells", prop_buf, MAX_PROP_LEN);
+                if (size == 4)
+                        naddr = prop_buf[0];
+                else
+                        naddr = 2;
+
+                if (naddr != 1 && naddr != 2)
+                        goto err;
+
+                size = getprop(soc, "ranges", prop_buf, MAX_PROP_LEN);
+
+                if (size < 12)
+                        goto err;
+                if (prop_buf[0] != 0)
+                        goto err;
+                if (naddr == 2 && prop_buf[1] != 0)
+                        goto err;
+
+                if (!dt_xlate_addr(soc, prop_buf + naddr, 8, &ret))
+                        ret = 0;
+        }
+
+err:
+        if (!ret)
+                printf("fsl_get_immr: Failed to find immr base\r\n");
+
+        return (u32 *)ret;
+}