[coreboot] [commit] r5703 - trunk/src/southbridge/amd/rs780
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svn at coreboot.org
Tue Aug 17 04:14:53 CEST 2010
Author: zbao
Date: Tue Aug 17 04:14:53 2010
New Revision: 5703
URL: https://tracker.coreboot.org/trac/coreboot/changeset/5703
Log:
Feature of lane reversal of AMD RS780 is tested.
Signed-off-by: Zheng Bao <zheng.bao at amd.com>
Acked-by: Marc Jones <marcj303 at gmail.com>
Modified:
trunk/src/southbridge/amd/rs780/rs780_gfx.c
Modified: trunk/src/southbridge/amd/rs780/rs780_gfx.c
==============================================================================
--- trunk/src/southbridge/amd/rs780/rs780_gfx.c Mon Aug 16 22:00:49 2010 (r5702)
+++ trunk/src/southbridge/amd/rs780/rs780_gfx.c Tue Aug 17 04:14:53 2010 (r5703)
@@ -1178,9 +1178,11 @@
/* Single-port/Dual-port configureation. */
switch (cfg->gfx_dual_slot) {
case 0:
- /* step 1, lane reversal (only need if CMOS option is enabled) */
+ /* step 1, lane reversal (only need if build config option is enabled) */
if (cfg->gfx_lane_reversal) {
+ set_nbmisc_enable_bits(nb_dev, 0x36, 1 << 31, 1 << 31);
set_nbmisc_enable_bits(nb_dev, 0x33, 1 << 2, 1 << 2);
+ set_nbmisc_enable_bits(nb_dev, 0x36, 1 << 31, 0 << 31);
}
printk(BIOS_DEBUG, "rs780_gfx_init step1.\n");
@@ -1194,10 +1196,12 @@
break;
case 1:
- /* step 1, lane reversal (only need if CMOS option is enabled) */
+ /* step 1, lane reversal (only need if build config option is enabled) */
if (cfg->gfx_lane_reversal) {
+ set_nbmisc_enable_bits(nb_dev, 0x36, 1 << 31, 1 << 31);
set_nbmisc_enable_bits(nb_dev, 0x33, 1 << 2, 1 << 2);
set_nbmisc_enable_bits(nb_dev, 0x33, 1 << 3, 1 << 3);
+ set_nbmisc_enable_bits(nb_dev, 0x36, 1 << 31, 0 << 31);
}
printk(BIOS_DEBUG, "rs780_gfx_init step1.\n");
/* step 1.1, dual-slot gfx configuration (only need if CMOS option is enabled) */
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