From 306ab6c6d56a121e48e6722ce65fe63f9efd0d4d Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sun, 22 Jul 2012 08:56:00 +0200
Subject: [PATCH] --- yaml --- r: 321186 b: refs/heads/master c:
 a9188bc1628366bea7157209df93acc0f74625cc h: refs/heads/master v: v3

---
 [refs]                        |  2 +-
 trunk/arch/mips/lantiq/prom.c | 22 ++++++++++++++++++++++
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index fe7825658e18..31a3a7c97fd2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e29b72f5e129b4dd4b77dc01dba340006bb103f8
+refs/heads/master: a9188bc1628366bea7157209df93acc0f74625cc
diff --git a/trunk/arch/mips/lantiq/prom.c b/trunk/arch/mips/lantiq/prom.c
index d185e8477fdf..6cfd6117fbfd 100644
--- a/trunk/arch/mips/lantiq/prom.c
+++ b/trunk/arch/mips/lantiq/prom.c
@@ -8,7 +8,10 @@
 
 #include <linux/export.h>
 #include <linux/clk.h>
+#include <linux/bootmem.h>
 #include <linux/of_platform.h>
+#include <linux/of_fdt.h>
+
 #include <asm/bootinfo.h>
 #include <asm/time.h>
 
@@ -70,6 +73,25 @@ void __init plat_mem_setup(void)
 	__dt_setup_arch(&__dtb_start);
 }
 
+void __init device_tree_init(void)
+{
+	unsigned long base, size;
+
+	if (!initial_boot_params)
+		return;
+
+	base = virt_to_phys((void *)initial_boot_params);
+	size = be32_to_cpu(initial_boot_params->totalsize);
+
+	/* Before we do anything, lets reserve the dt blob */
+	reserve_bootmem(base, size, BOOTMEM_DEFAULT);
+
+	unflatten_device_tree();
+
+	/* free the space reserved for the dt blob */
+	free_bootmem(base, size);
+}
+
 void __init prom_init(void)
 {
 	/* call the soc specific detetcion code and get it to fill soc_info */