From 716ca530e1c4515d8683c9d5be3d56b301758b66 Mon Sep 17 00:00:00 2001
From: James <>
Date: Wed, 4 Nov 2015 11:49:21 +0000
Subject: trunk-47381

---
 .../patches-3.18/200-free-mem-below-kernel-offset.patch   | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 target/linux/ar7/patches-3.18/200-free-mem-below-kernel-offset.patch

(limited to 'target/linux/ar7/patches-3.18/200-free-mem-below-kernel-offset.patch')

diff --git a/target/linux/ar7/patches-3.18/200-free-mem-below-kernel-offset.patch b/target/linux/ar7/patches-3.18/200-free-mem-below-kernel-offset.patch
new file mode 100644
index 0000000..4011942
--- /dev/null
+++ b/target/linux/ar7/patches-3.18/200-free-mem-below-kernel-offset.patch
@@ -0,0 +1,15 @@
+--- a/arch/mips/ar7/memory.c
++++ b/arch/mips/ar7/memory.c
+@@ -66,5 +66,11 @@ void __init prom_meminit(void)
+ 
+ void __init prom_free_prom_memory(void)
+ {
+-	/* Nothing to free */
++	/* adapted from arch/mips/txx9/generic/setup.c */
++	unsigned long saddr = PHYS_OFFSET + PAGE_SIZE;
++	unsigned long eaddr = __pa_symbol(&_text);
++
++	/* free memory between prom-record and kernel _text base */
++	if (saddr < eaddr)
++		free_init_pages("prom memory", saddr, eaddr);
+ }
-- 
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