diff options
| author | Timothy Pearson <tpearson@raptorengineeringinc.com> | 2016-03-21 13:22:37 -0500 |
|---|---|---|
| committer | Timothy Pearson <tpearson@raptorengineeringinc.com> | 2016-03-24 22:24:11 +0100 |
| commit | 54accfe0d6a693299c5f79f254c30d9ba68c38fa (patch) | |
| tree | 6121f75a22bec7730cb2e4622164b75407c6be0d /src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c | |
| parent | 1fc02d1d34320c52525b2c004f587529c04caeb2 (diff) | |
nb/amd/mct_ddr3: Set the NBP0 read latency from P0 trained values
During maximum read latency training on Family 15h processors,
the maximum read latency was incorrectly set from the NBP1
value instead of the correct NBP0 value.
Modify maximimum read latency training to explicitly operate
on the NBP0 value, and store the previously calculated NBP1
value for reference by other portions of the training algorithm.
Change-Id: I5d4a6c2def83df3e23f1a4c598314c31a0172cd7
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/14150
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Diffstat (limited to 'src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c')
| -rw-r--r-- | src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c b/src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c index 9a0d372528..524bea00e7 100644 --- a/src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c +++ b/src/northbridge/amd/amdmct/mct_ddr3/mctsrc.c @@ -998,7 +998,7 @@ static void dqsTrainRcvrEn_SW_Fam10(struct MCTStatStruc *pMCTstat, printk(BIOS_DEBUG, "TrainRcvrEn: CH_MaxRdLat:\n"); for(ChannelDTD = 0; ChannelDTD<2; ChannelDTD++) { printk(BIOS_DEBUG, "Channel:%x: %x\n", - ChannelDTD, pDCTstat->CH_MaxRdLat[ChannelDTD]); + ChannelDTD, pDCTstat->CH_MaxRdLat[ChannelDTD][0]); } } #endif @@ -1498,7 +1498,7 @@ static void dqsTrainRcvrEn_SW_Fam15(struct MCTStatStruc *pMCTstat, printk(BIOS_DEBUG, "TrainRcvrEn: CH_MaxRdLat:\n"); for(ChannelDTD = 0; ChannelDTD<2; ChannelDTD++) { printk(BIOS_DEBUG, "Channel:%x: %x\n", - ChannelDTD, pDCTstat->CH_MaxRdLat[ChannelDTD]); + ChannelDTD, pDCTstat->CH_MaxRdLat[ChannelDTD][0]); } } #endif @@ -1533,7 +1533,7 @@ static void dqsTrainRcvrEn_SW_Fam15(struct MCTStatStruc *pMCTstat, } static void write_max_read_latency_to_registers(struct MCTStatStruc *pMCTstat, - struct DCTStatStruc *pDCTstat, uint8_t dct, uint16_t latency) + struct DCTStatStruc *pDCTstat, uint8_t dct, uint16_t *latency) { uint32_t dword; uint8_t nb_pstate; @@ -1541,7 +1541,7 @@ static void write_max_read_latency_to_registers(struct MCTStatStruc *pMCTstat, for (nb_pstate = 0; nb_pstate < 2; nb_pstate++) { dword = Get_NB32_DCT_NBPstate(pDCTstat->dev_dct, dct, nb_pstate, 0x210); dword &= ~(0x3ff << 22); - dword |= ((latency & 0x3ff) << 22); + dword |= ((latency[nb_pstate] & 0x3ff) << 22); Set_NB32_DCT_NBPstate(pDCTstat->dev_dct, dct, nb_pstate, 0x210, dword); } } @@ -1665,7 +1665,7 @@ static void dqsTrainMaxRdLatency_SW_Fam15(struct MCTStatStruc *pMCTstat, /* 2.10.5.8.5.1.4 * Incrementally test each MaxRdLatency candidate */ - for (; pDCTstat->CH_MaxRdLat[Channel] < 0x3ff; pDCTstat->CH_MaxRdLat[Channel]++) { + for (; pDCTstat->CH_MaxRdLat[Channel][0] < 0x3ff; pDCTstat->CH_MaxRdLat[Channel][0]++) { write_max_read_latency_to_registers(pMCTstat, pDCTstat, Channel, pDCTstat->CH_MaxRdLat[Channel]); read_dram_dqs_training_pattern_fam15(pMCTstat, pDCTstat, Channel, current_worst_case_total_delay_dimm << 1, 0xff, 0); dword = Get_NB32_DCT(dev, Channel, 0x268) & 0x3ffff; @@ -1683,8 +1683,8 @@ static void dqsTrainMaxRdLatency_SW_Fam15(struct MCTStatStruc *pMCTstat, dword = Get_NB32(pDCTstat->dev_nbctl, (0x160 + (nb_pstate * 4))); /* Retrieve NbDid, NbFid */ nb_clk = (200 * (((dword >> 1) & 0x1f) + 0x4)) / (((dword >> 7) & 0x1)?2:1); - pDCTstat->CH_MaxRdLat[Channel]++; - pDCTstat->CH_MaxRdLat[Channel] += ((((uint64_t)15 * 100000000000ULL) / ((uint64_t)fam15h_freq_tab[mem_clk] * 1000000ULL)) + pDCTstat->CH_MaxRdLat[Channel][0]++; + pDCTstat->CH_MaxRdLat[Channel][0] += ((((uint64_t)15 * 100000000000ULL) / ((uint64_t)fam15h_freq_tab[mem_clk] * 1000000ULL)) * ((uint64_t)nb_clk * 1000)) / 1000000000ULL; write_max_read_latency_to_registers(pMCTstat, pDCTstat, Channel, pDCTstat->CH_MaxRdLat[Channel]); @@ -1712,7 +1712,7 @@ static void dqsTrainMaxRdLatency_SW_Fam15(struct MCTStatStruc *pMCTstat, printk(BIOS_DEBUG, "TrainMaxRdLatency: CH_MaxRdLat:\n"); for(ChannelDTD = 0; ChannelDTD<2; ChannelDTD++) { printk(BIOS_DEBUG, "Channel:%x: %x\n", - ChannelDTD, pDCTstat->CH_MaxRdLat[ChannelDTD]); + ChannelDTD, pDCTstat->CH_MaxRdLat[ChannelDTD][0]); } } #endif @@ -1904,9 +1904,9 @@ static void mct_SetMaxLatency_D(struct DCTStatStruc *pDCTstat, u8 Channel, u16 D */ SubTotal += (cpu_val_n) / 2; - pDCTstat->CH_MaxRdLat[Channel] = SubTotal; + pDCTstat->CH_MaxRdLat[Channel][0] = SubTotal; if(pDCTstat->GangedMode) { - pDCTstat->CH_MaxRdLat[1] = SubTotal; + pDCTstat->CH_MaxRdLat[1][0] = SubTotal; } /* Program the F2x[1, 0]78[MaxRdLatency] register with |