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authorJohn Crispin <john@openwrt.org>2015-02-09 12:12:30 +0000
committerJohn Crispin <john@openwrt.org>2015-02-09 12:12:30 +0000
commit9f0f80faacff55e9e909b87328fc0def14290562 (patch)
treecc7d2b74e9645ac723ef45db443ff6b4b0aeda14 /target/linux/ar7/patches-3.18/200-free-mem-below-kernel-offset.patch
parent5c8b8b36e1812feb055fc8574fe03156fa1efcb3 (diff)
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ar7: add 3.18 support
this is only compile tested Signed-off-by: John Crispin <blogic@openwrt.org> SVN-Revision: 44344
Diffstat (limited to 'target/linux/ar7/patches-3.18/200-free-mem-below-kernel-offset.patch')
-rw-r--r--target/linux/ar7/patches-3.18/200-free-mem-below-kernel-offset.patch15
1 files changed, 15 insertions, 0 deletions
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 0000000000..4011942d79
--- /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);
+ }