diff options
Diffstat (limited to 'src/southbridge/amd/rs690/rs690_gfx.c')
| -rw-r--r-- | src/southbridge/amd/rs690/rs690_gfx.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/southbridge/amd/rs690/rs690_gfx.c b/src/southbridge/amd/rs690/rs690_gfx.c index 0ed5a81369..bddb825863 100644 --- a/src/southbridge/amd/rs690/rs690_gfx.c +++ b/src/southbridge/amd/rs690/rs690_gfx.c @@ -471,6 +471,48 @@ void rs690_gfx_init(device_t nb_dev, device_t dev, u32 port) /* done by enable_pci_bar3() before */ /* step 6 SBIOS compile flags */ + if (cfg->gfx_tmds) { + /* step 6.2.2 Clock-Muxing Control */ + /* step 6.2.2.1 */ + set_nbmisc_enable_bits(nb_dev, 0x7, 1 << 16, 1 << 16); + + /* step 6.2.2.2 */ + set_nbmisc_enable_bits(nb_dev, 0x7, 1 << 8, 1 << 8); + set_nbmisc_enable_bits(nb_dev, 0x7, 1 << 10, 1 << 10); + + /* step 6.2.2.3 */ + set_nbmisc_enable_bits(nb_dev, 0x7, 1 << 26, 1 << 26); + + /* step 6.2.3 Lane-Muxing Control */ + /* step 6.2.3.1 */ + set_nbmisc_enable_bits(nb_dev, 0x37, 0x3 << 8, 0x2 << 8); + + /* step 6.2.4 Received Data Control */ + /* step 6.2.4.1 */ + set_pcie_enable_bits(nb_dev, 0x40, 0x3 << 16, 0x2 << 16); + + /* step 6.2.4.2 */ + set_pcie_enable_bits(nb_dev, 0x40, 0x3 << 18, 0x3 << 18); + + /* step 6.2.4.3 */ + set_pcie_enable_bits(nb_dev, 0x40, 0x3 << 20, 0x0 << 20); + + /* step 6.2.4.4 */ + set_pcie_enable_bits(nb_dev, 0x40, 0x3 << 22, 0x1 << 22); + + /* step 6.2.5 PLL Power Down Control */ + /* step 6.2.5.1 */ + set_nbmisc_enable_bits(nb_dev, 0x35, 0x3 << 6, 0x0 << 6); + + /* step 6.2.6 Driving Strength Control */ + /* step 6.2.6.1 */ + set_nbmisc_enable_bits(nb_dev, 0x34, 0x1 << 24, 0x0 << 24); + + /* step 6.2.6.2 */ + set_nbmisc_enable_bits(nb_dev, 0x35, 0x3 << 2, 0x3 << 2); + } + + printk_info("rs690_gfx_init step6.\n"); /* step 7 compliance state, (only need if CMOS option is enabled) */ /* the compliance stete is just for test. refer to 4.2.5.2 of PCIe specification */ |