diff options
Diffstat (limited to 'src/northbridge/amd/amdmct')
| -rw-r--r-- | src/northbridge/amd/amdmct/mct_ddr3/mct_d.c | 8 | ||||
| -rw-r--r-- | src/northbridge/amd/amdmct/mct_ddr3/mct_d.h | 6 |
2 files changed, 14 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 aaabf9d7f1..ca68900758 100644 --- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c +++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.c @@ -336,6 +336,11 @@ restartinit: goto fatalexit; } +#if IS_ENABLED(DIMM_VOLTAGE_SET_SUPPORT) + printk(BIOS_DEBUG, "mctAutoInitMCT_D: DIMMSetVoltage\n"); + DIMMSetVoltages(pMCTstat, pDCTstatA); /* Set the DIMM voltages (mainboard specific) */ +#endif + printk(BIOS_DEBUG, "mctAutoInitMCT_D: SyncDCTsReady_D\n"); SyncDCTsReady_D(pMCTstat, pDCTstatA); /* Make sure DCTs are ready for accesses.*/ @@ -2128,6 +2133,9 @@ static u8 DIMMPresence_D(struct MCTStatStruc *pMCTstat, pDCTstat->DimmBanks[i] = 1ULL << (((mctRead_SPD(smbaddr, SPD_Density) & 0x70) >> 4) + 3); pDCTstat->DimmWidth[i] = 1ULL << ((mctRead_SPD(smbaddr, SPD_BusWidth) & 0x7) + 3); } + /* Check supported voltage(s) */ + pDCTstat->DimmSupportedVoltages[i] = mctRead_SPD(smbaddr, SPD_Voltage) & 0x7; + pDCTstat->DimmSupportedVoltages[i] ^= 0x1; /* Invert LSB to convert from SPD format to internal bitmap format */ /* Check module type */ byte = mctRead_SPD(smbaddr, SPD_DIMMTYPE) & 0x7; if (byte == JED_RDIMM || byte == JED_MiniRDIMM) { diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.h b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.h index d40381702b..146e699a56 100644 --- a/src/northbridge/amd/amdmct/mct_ddr3/mct_d.h +++ b/src/northbridge/amd/amdmct/mct_ddr3/mct_d.h @@ -202,6 +202,7 @@ #define JED_MiniRDIMM 0x5 /* Mini-RDIMM */ #define SPD_Density 4 /* Bank address bits,SDRAM capacity */ #define SPD_Addressing 5 /* Row/Column address bits */ +#define SPD_Voltage 6 /* Supported voltage bitfield */ #define SPD_Organization 7 /* rank#,Device width */ #define SPD_BusWidth 8 /* ECC, Bus width */ #define JED_ECC 8 /* ECC capability */ @@ -581,6 +582,10 @@ struct DCTStatStruc { /* A per Node structure*/ struct _sDCTStruct s_C_DCTPtr[2]; /* struct _sDCTStruct s_C_DCT1Ptr[8]; */ + /* DIMM supported voltage bitmap ([2:0]: 1.25V, 1.35V, 1.5V) */ + uint8_t DimmSupportedVoltages[MAX_DIMMS_SUPPORTED]; + uint32_t DimmConfiguredVoltage[MAX_DIMMS_SUPPORTED]; /* mV */ + uint8_t DimmRows[MAX_DIMMS_SUPPORTED]; uint8_t DimmCols[MAX_DIMMS_SUPPORTED]; uint8_t DimmRanks[MAX_DIMMS_SUPPORTED]; @@ -901,6 +906,7 @@ u32 procOdtWorkaround(struct DCTStatStruc *pDCTstat, u32 dct, u32 val); void mct_BeforeDramInit_D(struct DCTStatStruc *pDCTstat, u32 dct); void mctGet_DIMMAddr(struct DCTStatStruc *pDCTstat, u32 node); void mctSMBhub_Init(u32 node); +void DIMMSetVoltages(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstatA); int mctRead_SPD(u32 smaddr, u32 reg); void InterleaveNodes_D(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstatA); void InterleaveChannels_D(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstatA); |