diff options
Diffstat (limited to 'src/northbridge/amd')
| -rw-r--r-- | src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c | 9 |
1 files changed, 9 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 7ef2900de1..69a5fe3fe0 100644 --- a/src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c +++ b/src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c @@ -1617,6 +1617,7 @@ static void TrainDQSReceiverEnCyc_D_Fam15(struct MCTStatStruc *pMCTstat, uint32_t rx_en_offset; uint8_t internal_lane; uint8_t dct_training_success; + uint8_t lane_success_count; 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]; @@ -1695,6 +1696,7 @@ static void TrainDQSReceiverEnCyc_D_Fam15(struct MCTStatStruc *pMCTstat, for (lane = 0; lane < lane_count; lane++) { /* Initialize variables */ memset(dqs_results_array, 0, sizeof(dqs_results_array)); + lane_success_count = 0; /* 2.10.5.8.3 (1) */ dword = Get_NB32_index_wait_DCT(dev, dct, index_reg, 0x0d0f0030 | (lane << 8)); @@ -1721,6 +1723,13 @@ static void TrainDQSReceiverEnCyc_D_Fam15(struct MCTStatStruc *pMCTstat, /* 2.10.5.8.3 (4 B) */ dqs_results_array[current_phy_phase_delay[lane]] = TrainDQSRdWrPos_D_Fam15(pMCTstat, pDCTstat, dct, Receiver, Receiver + 2, lane, lane + 1); + + if (dqs_results_array[current_phy_phase_delay[lane]]) + lane_success_count++; + + /* Don't bother testing larger values if the end of the passing window was already found */ + if (!dqs_results_array[current_phy_phase_delay[lane]] && (lane_success_count > 1)) + break; } uint16_t phase_delay; |