From 1f9a318cea14272edd10d63739e2d326c90f430e Mon Sep 17 00:00:00 2001 From: Andy Fleming Date: Fri, 23 Feb 2007 16:28:46 -0600 Subject: [PATCH] Only set ddrioovcr for 8548 rev1. Signed-off-by: Ed Swarthout Signed-off-by: Andy Fleming --- cpu/mpc85xx/spd_sdram.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/cpu/mpc85xx/spd_sdram.c b/cpu/mpc85xx/spd_sdram.c index 4b3c4eb706..16a697d40c 100644 --- a/cpu/mpc85xx/spd_sdram.c +++ b/cpu/mpc85xx/spd_sdram.c @@ -263,13 +263,14 @@ spd_sdram(void) } /* - * Adjust DDR II IO voltage biasing. It just makes it work. + * Adjust DDR II IO voltage biasing. + * Only 8548 rev 1 needs the fix */ - if (spd.mem_type == SPD_MEMTYPE_DDR2) { - gur->ddrioovcr = (0 - | 0x80000000 /* Enable */ - | 0x10000000 /* VSEL to 1.8V */ - ); + if ((SVR_VER(get_svr()) == SVR_8548_E) && + (SVR_MJREV(get_svr()) == 1) && + (spd.mem_type == SPD_MEMTYPE_DDR2)) { + gur->ddrioovcr = (0x80000000 /* Enable */ + | 0x10000000);/* VSEL to 1.8V */ } /* -- 2.39.5