[coreboot] [commit] r5703 - trunk/src/southbridge/amd/rs780

[repository service]

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) */