Add support for 8641 Rev 2 silicon.

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@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>

diff --git a/cpu/mpc86xx/spd_sdram.c b/cpu/mpc86xx/spd_sdram.c
index b18e822..ac9ff81 100644 (file)
--- a/cpu/mpc86xx/spd_sdram.c
+++ b/cpu/mpc86xx/spd_sdram.c
@@ -284,9 +284,9 @@ spd_init(unsigned char i2c_address, unsigned int ddr_num,
        }
 
        /*
-        * 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 */