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authorHauke Mehrtens <hauke@hauke-m.de>2009-11-13 20:32:47 +0000
committerHauke Mehrtens <hauke@hauke-m.de>2009-11-13 20:32:47 +0000
commit30f859403a53ea5d51867065408a379acea6f1b4 (patch)
tree9897294142072297dba5535062c20b7b90bde5bd /target/linux/brcm-2.4
parent00808aaff32e58946f5da370068fd875aa3ae5c8 (diff)
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fix problem with 128MB ram.
This patch is out of broadcoms official source code SVN-Revision: 18413
Diffstat (limited to 'target/linux/brcm-2.4')
-rw-r--r--target/linux/brcm-2.4/files/arch/mips/bcm947xx/prom.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/target/linux/brcm-2.4/files/arch/mips/bcm947xx/prom.c b/target/linux/brcm-2.4/files/arch/mips/bcm947xx/prom.c
index be628da625..f635b4a6c6 100644
--- a/target/linux/brcm-2.4/files/arch/mips/bcm947xx/prom.c
+++ b/target/linux/brcm-2.4/files/arch/mips/bcm947xx/prom.c
@@ -31,6 +31,15 @@ prom_init(int argc, const char **argv)
*(unsigned long *)(prom_init))
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);
}