diff options
Diffstat (limited to 'src/southbridge/amd/rs780/pcie.c')
| -rw-r--r-- | src/southbridge/amd/rs780/pcie.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/southbridge/amd/rs780/pcie.c b/src/southbridge/amd/rs780/pcie.c index 9cbd832661..5e2d985130 100644 --- a/src/southbridge/amd/rs780/pcie.c +++ b/src/southbridge/amd/rs780/pcie.c @@ -390,3 +390,16 @@ void config_gpp_core(device_t nb_dev, device_t sb_dev) switching_gpp_configurations(nb_dev, sb_dev); ValidatePortEn(nb_dev); } + +/** + * Hide unused Gpp port + */ +void pcie_hide_unused_ports(device_t nb_dev) +{ + u16 hide = 0x6FC; /* skip port 0, 1, 8 */ + + hide &= ~(AtiPcieCfg.PortDetect | AtiPcieCfg.PortHp); + printk(BIOS_INFO, "rs780 unused GPP ports bitmap=0x%03x, force disabled\n", hide); + set_nbmisc_enable_bits(nb_dev, 0x0C, 0xFC, (hide & 0xFC)); /* bridge 2-7 */ + set_nbmisc_enable_bits(nb_dev, 0x0C, 0x30000, ((hide >> 9) & 0x3) << 16); /* bridge 9-a */ +} |