[U-Boot-Users] [PATCH] Add support for 8641 Rev 2 silicon.

Jon Loeliger jdl at freescale.com
Thu Dec 7 17:34:14 CET 2006


From: Ed Swarthout <ed.swarthout at freescale.com>

Without this patch, I am unable to get to the prompt on rev 2 silicon.
Only set ddrioovcr for rev1.

Signed-off-by: Ed Swarthout<ed.swarthout at freescale.com>
Signed-off-by: Jon Loeliger <jdl at freescale.com>
---
 cpu/mpc86xx/spd_sdram.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/cpu/mpc86xx/spd_sdram.c b/cpu/mpc86xx/spd_sdram.c
index b18e822..ac9ff81 100644
--- a/cpu/mpc86xx/spd_sdram.c
+++ b/cpu/mpc86xx/spd_sdram.c
@@ -284,9 +284,9 @@ #endif
 	}
 
 	/*
-	 * Adjust DDR II IO voltage biasing.  It just makes it work.
+	 * Adjust DDR II IO voltage biasing.  Rev1 only
 	 */
-	if (spd.mem_type == SPD_MEMTYPE_DDR2) {
+	if (((get_svr() & 0xf0) == 0x10) && (spd.mem_type == SPD_MEMTYPE_DDR2)) {
 		gur->ddrioovcr = (0
 				  | 0x80000000		/* Enable */
 				  | 0x10000000		/* VSEL to 1.8V */
-- 
1.4.2.3







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