From 659da2ba3ebf53dc49f7f9a357a1aef046bf3139 Mon Sep 17 00:00:00 2001
From: Wu Zhangjin <wuzhangjin@gmail.com>
Date: Fri, 16 Oct 2009 14:17:15 +0800
Subject: [PATCH] MIPS: Loongson: Register reserved memory pages

Register reserved pages for Loongson family machines.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Cc: yanh@lemote.com,
Cc: huhb@lemote.com
Cc: Zhang Le <r0bertz@gentoo.org>
Cc: zhangfx@lemote.com,
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/loongson/common/mem.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/mips/loongson/common/mem.c b/arch/mips/loongson/common/mem.c
index e94ef158f980..3f7f153b1974 100644
--- a/arch/mips/loongson/common/mem.c
+++ b/arch/mips/loongson/common/mem.c
@@ -12,14 +12,22 @@
 
 #include <loongson.h>
 #include <mem.h>
+#include <pci.h>
 
 void __init prom_init_memory(void)
 {
     add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
+
+    add_memory_region(memsize << 20, LOONGSON_PCI_MEM_START - (memsize <<
+			    20), BOOT_MEM_RESERVED);
 #ifdef CONFIG_64BIT
     if (highmemsize > 0)
 	add_memory_region(LOONGSON_HIGHMEM_START,
 		highmemsize << 20, BOOT_MEM_RAM);
+
+    add_memory_region(LOONGSON_PCI_MEM_END + 1, LOONGSON_HIGHMEM_START -
+		    LOONGSON_PCI_MEM_END - 1, BOOT_MEM_RESERVED);
+
 #endif /* CONFIG_64BIT */
 }
 
-- 
2.20.1