diff options
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/amd/family_10h-family_15h/init_cpus.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/cpu/amd/family_10h-family_15h/init_cpus.c b/src/cpu/amd/family_10h-family_15h/init_cpus.c index 34a67da750..439e4fa1a5 100644 --- a/src/cpu/amd/family_10h-family_15h/init_cpus.c +++ b/src/cpu/amd/family_10h-family_15h/init_cpus.c @@ -1489,6 +1489,46 @@ static void cpuSetAMDPCI(u8 node) pci_write_config32(NODE_PCI(node, 3), (link << 2) + 0x148, dword); } } + + /* Set up the SRI to XCS Token Count */ + uint8_t free_tok; + uint8_t up_rsp_tok; + + /* Set defaults */ + free_tok = 0xa; + up_rsp_tok = 0x3; + + if (!dual_node) { + free_tok = 0xa; + up_rsp_tok = 0x3; + } else { + if ((sockets == 1) + || ((sockets == 2) && (sockets_populated == 1))) { + if (probe_filter_enabled) { + free_tok = 0x9; + up_rsp_tok = 0x3; + } else { + free_tok = 0xa; + up_rsp_tok = 0x3; + } + } else if ((sockets == 2) && (sockets_populated == 2)) { + free_tok = 0xb; + up_rsp_tok = 0x1; + } else if ((sockets == 4) && (sockets_populated == 2)) { + free_tok = 0xa; + up_rsp_tok = 0x3; + } else if ((sockets == 4) && (sockets_populated == 4)) { + free_tok = 0x9; + up_rsp_tok = 0x1; + } + } + + dword = pci_read_config32(NODE_PCI(node, 3), 0x140); + dword &= ~(0xf << 20); /* FreeTok = free_tok */ + dword |= ((free_tok & 0xf) << 20); + dword &= ~(0x3 << 8); /* UpRspTok = up_rsp_tok */ + dword |= ((up_rsp_tok & 0x3) << 8); + pci_write_config32(NODE_PCI(node, 3), 0x140, dword); } printk(BIOS_DEBUG, " done\n"); |