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author | Hauke Mehrtens <hauke@hauke-m.de> | 2013-01-03 01:51:31 +0000 |
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committer | Hauke Mehrtens <hauke@hauke-m.de> | 2013-01-03 01:51:31 +0000 |
commit | edc7ab525ff7cc45ea478b8b936e596789eb851a (patch) | |
tree | 01c12cc8c3274841fe0f9dc3a75cb8b6b16bc676 /target/linux/brcm47xx/patches-3.6/010-MIPS-BCM47XX-ignore-last-memory-page.patch | |
parent | 76c767f122670919a78019834af06ef58ac6470a (diff) | |
download | master-31e0f0ae-edc7ab525ff7cc45ea478b8b936e596789eb851a.tar.gz master-31e0f0ae-edc7ab525ff7cc45ea478b8b936e596789eb851a.tar.bz2 master-31e0f0ae-edc7ab525ff7cc45ea478b8b936e596789eb851a.zip |
brcm47xx: move patches already in the mainline kernel to the front
SVN-Revision: 34987
Diffstat (limited to 'target/linux/brcm47xx/patches-3.6/010-MIPS-BCM47XX-ignore-last-memory-page.patch')
-rw-r--r-- | target/linux/brcm47xx/patches-3.6/010-MIPS-BCM47XX-ignore-last-memory-page.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.6/010-MIPS-BCM47XX-ignore-last-memory-page.patch b/target/linux/brcm47xx/patches-3.6/010-MIPS-BCM47XX-ignore-last-memory-page.patch new file mode 100644 index 0000000000..a2a7b9f5f7 --- /dev/null +++ b/target/linux/brcm47xx/patches-3.6/010-MIPS-BCM47XX-ignore-last-memory-page.patch @@ -0,0 +1,33 @@ +--- a/arch/mips/bcm47xx/prom.c ++++ b/arch/mips/bcm47xx/prom.c +@@ -27,6 +27,7 @@ + #include <linux/types.h> + #include <linux/kernel.h> + #include <linux/spinlock.h> ++#include <linux/smp.h> + #include <asm/bootinfo.h> + #include <asm/fw/cfe/cfe_api.h> + #include <asm/fw/cfe/cfe_error.h> +@@ -127,6 +128,7 @@ static __init void prom_init_mem(void) + { + unsigned long mem; + unsigned long max; ++ struct cpuinfo_mips *c = ¤t_cpu_data; + + /* Figure out memory size by finding aliases. + * +@@ -155,6 +157,14 @@ 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 (c->cputype == CPU_74K && (mem == (128 << 20))) ++ mem -= 0x1000; ++ + add_memory_region(0, mem, BOOT_MEM_RAM); + } + |