Arthur Heymans has uploaded a new change for review. ( https://review.coreboot.org/19595 )
Change subject: mb/intel/d510mo: Configure clockgen ......................................................................
mb/intel/d510mo: Configure clockgen
Configuring the clockgen like vendor bios fixes the issue where the display wobbles from left to right on the analog VGA output.
Note: This seems to be common issue/requirement on Intel devices from that generation (also happens on dg43gt).
TESTED on Intel D510MO.
Change-Id: I08449f0b8b90a1781e6dec91140bf219ea07aaf9 Signed-off-by: Arthur Heymans arthur@aheymans.xyz --- M src/mainboard/intel/d510mo/romstage.c 1 file changed, 4 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/95/19595/1
diff --git a/src/mainboard/intel/d510mo/romstage.c b/src/mainboard/intel/d510mo/romstage.c index 3209d81..16e2b28 100644 --- a/src/mainboard/intel/d510mo/romstage.c +++ b/src/mainboard/intel/d510mo/romstage.c @@ -99,6 +99,8 @@ void mainboard_romstage_entry(unsigned long bist) { const u8 spd_addrmap[4] = { 0x50, 0x51, 0, 0 }; + u8 clockgen_block[13] = {0x61, 0xd9, 0xfe, 0xff, 0xff, 0x00, 0x00, + 0x01, 0x03, 0x25, 0x83, 0x17, 0x0d};
if (bist == 0) enable_lapic(); @@ -116,6 +118,8 @@ report_bist_failure(bist); enable_smbus();
+ smbus_block_write(0x69, 0, 13, clockgen_block); + pineview_early_initialization();
post_code(0x30);