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authormb <mb@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-01-07 16:06:05 +0000
committermb <mb@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-01-07 16:06:05 +0000
commit2e7da1b948f9bf1946f992e7bafe27b913798367 (patch)
tree3834515bb4783f3c43bd1fe9852ec8fab7c5dfac /target/linux/brcm47xx/patches-2.6.32/170-128MB_ram_bugfix.patch
parent936485f730801be1d724f5a011e11f6f4bc75d11 (diff)
bcm47xx: Add basic 2.6.32 support.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19062 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm47xx/patches-2.6.32/170-128MB_ram_bugfix.patch')
-rw-r--r--target/linux/brcm47xx/patches-2.6.32/170-128MB_ram_bugfix.patch17
1 files changed, 17 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-2.6.32/170-128MB_ram_bugfix.patch b/target/linux/brcm47xx/patches-2.6.32/170-128MB_ram_bugfix.patch
new file mode 100644
index 0000000000..e54e3de409
--- /dev/null
+++ b/target/linux/brcm47xx/patches-2.6.32/170-128MB_ram_bugfix.patch
@@ -0,0 +1,17 @@
+--- a/arch/mips/bcm47xx/prom.c
++++ b/arch/mips/bcm47xx/prom.c
+@@ -141,6 +141,14 @@ static __init void prom_init_mem(void)
+ break;
+ }
+
++ /* Ignoring the last page when ddr size is 128M. Cached
++ * accesses to last page is causing the processor to prefetch
++ * using address above 128M stepping out of the ddr address
++ * space.
++ */
++ if (mem == 0x8000000)
++ mem -= 0x1000;
++
+ add_memory_region(0, mem, BOOT_MEM_RAM);
+ }
+