diff options
Diffstat (limited to 'src/northbridge')
| -rw-r--r-- | src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c index 8d7ff27105..a66174e68f 100644 --- a/src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c +++ b/src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c @@ -1670,9 +1670,11 @@ static void TrainDQSReceiverEnCyc_D_Fam15(struct MCTStatStruc *pMCTstat, uint8_t lane; uint32_t dword; uint32_t rx_en_offset; + uint8_t internal_lane; uint8_t dct_training_success; uint16_t initial_phy_phase_delay[MAX_BYTE_LANES]; uint16_t current_phy_phase_delay[MAX_BYTE_LANES]; + uint16_t current_read_dqs_delay[MAX_BYTE_LANES]; uint8_t lane_training_success[MAX_BYTE_LANES]; uint8_t dqs_results_array[1024]; @@ -1761,6 +1763,11 @@ static void TrainDQSReceiverEnCyc_D_Fam15(struct MCTStatStruc *pMCTstat, /* 2.10.5.8.3 (4 A) */ write_dqs_receiver_enable_control_registers(current_phy_phase_delay, dev, dct, dimm, index_reg); + /* Reset the read data timing registers to 1UI before calculating MaxRdLatency */ + for (internal_lane = 0; internal_lane < MAX_BYTE_LANES; internal_lane++) + current_read_dqs_delay[internal_lane] = 0x20 << 1; + write_dqs_read_data_timing_registers(current_read_dqs_delay, dev, dct, dimm, index_reg); + /* Calculate and program MaxRdLatency */ Calc_SetMaxRdLatency_D_Fam15(pMCTstat, pDCTstat, dct, 0); |