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authorJames <>2015-11-04 11:49:21 +0000
committerJames <>2015-11-04 11:49:21 +0000
commit716ca530e1c4515d8683c9d5be3d56b301758b66 (patch)
tree700eb5bcc1a462a5f21dcec15ce7c97ecfefa772 /target/linux/ar7/patches-3.18/200-free-mem-below-kernel-offset.patch
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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 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);
+ }