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-rw-r--r--src/southbridge/amd/rs780/rs780_gfx.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/southbridge/amd/rs780/rs780_gfx.c b/src/southbridge/amd/rs780/rs780_gfx.c
index 7decabdac3..0f493f26d0 100644
--- a/src/southbridge/amd/rs780/rs780_gfx.c
+++ b/src/southbridge/amd/rs780/rs780_gfx.c
@@ -1178,9 +1178,11 @@ void rs780_gfx_init(device_t nb_dev, device_t dev, u32 port)
/* 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 @@ void rs780_gfx_init(device_t nb_dev, device_t dev, u32 port)
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) */