From c174d2250e402399ad7dbdd57d51883d8804bba0 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 15 Jul 2013 00:40:37 +0200
Subject: [PATCH 31/33] owrt: MIPS: add OWRTDTB secion

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 arch/mips/kernel/head.S   |    3 +++
 arch/mips/ralink/Makefile |    2 +-
 arch/mips/ralink/of.c     |    4 +++-
 3 files changed, 7 insertions(+), 2 deletions(-)

--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -86,6 +86,9 @@ EXPORT(__image_cmdline)
 	.fill	0x400
 #endif /* CONFIG_IMAGE_CMDLINE_HACK */
 
+	.ascii  "OWRTDTB:"
+	EXPORT(__image_dtb)
+	.fill   0x4000
 	__REF
 
 NESTED(kernel_entry, 16, sp)			# kernel entry point
--- a/arch/mips/ralink/of.c
+++ b/arch/mips/ralink/of.c
@@ -66,6 +66,8 @@ static int __init early_init_dt_find_mem
 	return 0;
 }
 
+extern struct boot_param_header __image_dtb;
+
 void __init plat_mem_setup(void)
 {
 	set_io_port_base(KSEG1);
@@ -74,7 +76,7 @@ void __init plat_mem_setup(void)
 	 * Load the builtin devicetree. This causes the chosen node to be
 	 * parsed resulting in our memory appearing
 	 */
-	__dt_setup_arch(__dtb_start);
+	__dt_setup_arch(&__image_dtb);
 
 	strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
 
