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-rw-r--r--arch/mips/bcm47xx/prom.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/mips/bcm47xx/prom.c b/arch/mips/bcm47xx/prom.c
index c51405e..0fa646c 100644
--- 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);
}
@@ -155,4 +163,3 @@ void __init prom_init(void)
void __init prom_free_prom_memory(void)
{
}
-
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