X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/7ed9009bbdf799be5f9f1446c264b8504f483beb..7accb609b38931bd78435d4529c6cab71198d4d8:/target/linux/brcm-2.4/files/arch/mips/bcm947xx/prom.c

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 a7abb3dbd..f635b4a6c 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
@@ -9,7 +9,6 @@
  * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
  *
- * $Id: prom.c,v 1.1 2005/03/16 13:49:59 wbx Exp $
  */
 
 #include <linux/config.h>
@@ -32,6 +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);
 }