diff options
| author | Zheng Bao <zheng.bao@amd.com> | 2010-08-17 02:14:53 +0000 |
|---|---|---|
| committer | Zheng Bao <Zheng.Bao@amd.com> | 2010-08-17 02:14:53 +0000 |
| commit | 52a3c3b7f71bde9667b75bfb2d53823614f7807f (patch) | |
| tree | 261b4700de7362fd6a628e9ed0685a11aa8d1075 | |
| parent | e39251973bd854c297d5934e0c1e3f990f20b923 (diff) | |
Feature of lane reversal of AMD RS780 is tested.
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Acked-by: Marc Jones <marcj303@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5703 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
| -rw-r--r-- | src/southbridge/amd/rs780/rs780_gfx.c | 8 |
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) */ |