diff options
Diffstat (limited to 'src/northbridge/amd/amdmct/mct_ddr3/mct_d.c')
| -rw-r--r-- | src/northbridge/amd/amdmct/mct_ddr3/mct_d.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c index f31fb3c7e6..bb12746a5c 100644 --- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c +++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c @@ -2944,6 +2944,29 @@ fatalexit: die("mct_d: fatalexit"); } +void initialize_mca(uint8_t bsp, uint8_t suppress_errors) { + uint8_t node; + uint32_t mc4_status_high; + uint32_t mc4_status_low; + + for (node = 0; node < MAX_NODES_SUPPORTED; node++) { + if (bsp && (node > 0)) + break; + + mc4_status_high = pci_read_config32(PCI_DEV(0, 0x18 + node, 3), 0x4c); + mc4_status_low = pci_read_config32(PCI_DEV(0, 0x18 + node, 3), 0x48); + if ((mc4_status_high & (0x1 << 31)) && (mc4_status_high != 0xffffffff)) { + if (!suppress_errors) + printk(BIOS_WARNING, "WARNING: MC4 Machine Check Exception detected on node %d!\n" + "Signature: %08x%08x\n", node, mc4_status_high, mc4_status_low); + + /* Clear MC4 error status */ + pci_write_config32(PCI_DEV(0, 0x18 + node, 3), 0x48, 0x0); + pci_write_config32(PCI_DEV(0, 0x18 + node, 3), 0x4c, 0x0); + } + } +} + static u8 ReconfigureDIMMspare_D(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstatA) { |