From 30f859403a53ea5d51867065408a379acea6f1b4 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Fri, 13 Nov 2009 20:32:47 +0000 Subject: fix problem with 128MB ram. This patch is out of broadcoms official source code SVN-Revision: 18413 --- target/linux/brcm-2.4/files/arch/mips/bcm947xx/prom.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'target/linux/brcm-2.4') 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 be628da..f635b4a 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); } -- cgit v1.1