From 99cfa1e6bdc7e89f571a52ed636704be894418d1 Mon Sep 17 00:00:00 2001 From: Kerry She Date: Mon, 30 Aug 2010 07:31:31 +0000 Subject: Multi-DIMMS on AMD ddr3 MCT channel B works. Signed-off-by: Kerry She Acked-by: Stefan Reinauer git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5748 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c | 5 ++--- src/northbridge/amd/amdmct/mct_ddr3/mctrci.c | 30 ++++++++++++++++++++------ src/northbridge/amd/amdmct/mct_ddr3/mctwl.c | 2 +- 3 files changed, 26 insertions(+), 11 deletions(-) (limited to 'src/northbridge/amd/amdmct/mct_ddr3') diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c b/src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c index db930eff9f..c853b88ff6 100644 --- a/src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c +++ b/src/northbridge/amd/amdmct/mct_ddr3/mctdqs_d.c @@ -332,7 +332,6 @@ static void TrainDQSRdWrPos_D(struct MCTStatStruc *pMCTstat, if (pDCTstat->DIMMValidDCT[Channel] == 0) /* mct_BeforeTrainDQSRdWrPos_D */ continue; - pDCTstat->DqsRdWrPos_Saved = 0; for ( DQSWrDelay = 0; DQSWrDelay < dqsWrDelay_end; DQSWrDelay++) { pDCTstat->DQSDelay = DQSWrDelay; @@ -1174,12 +1173,12 @@ u32 mct_GetMCTSysAddr_D(struct MCTStatStruc *pMCTstat, *valid = 0; - if (!pDCTstat->GangedMode) { /* FIXME: not used. */ + if (!pDCTstat->GangedMode) { reg_off = 0x100 * Channel; } /* get the local base addr of the chipselect */ - reg = 0x40 + (receiver << 2); + reg = 0x40 + (receiver << 2) + reg_off; val = Get_NB32(dev, reg); val &= ~0x0F; diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mctrci.c b/src/northbridge/amd/amdmct/mct_ddr3/mctrci.c index 647e63719c..4f5a360f94 100644 --- a/src/northbridge/amd/amdmct/mct_ddr3/mctrci.c +++ b/src/northbridge/amd/amdmct/mct_ddr3/mctrci.c @@ -22,6 +22,8 @@ static u32 mct_ControlRC(struct MCTStatStruc *pMCTstat, { u8 Dimms, DimmNum, MaxDimm, Speed; u32 val; + u32 dct = 0; + u32 reg_off = 0; DimmNum = MrsChipSel >> 20; @@ -32,8 +34,14 @@ static u32 mct_ControlRC(struct MCTStatStruc *pMCTstat, MaxDimm = mctGet_NVbits(NV_MAX_DIMMS); Speed = pDCTstat->DIMMAutoSpeed; - /* if (dct == 0) */ - Dimms = pDCTstat->MAdimms[0]; + + if (pDCTstat->CSPresent_DCT[0] > 0) { + dct = 0; + } else if (pDCTstat->CSPresent_DCT[1] > 0 ){ + dct = 1; + } + reg_off = 0x100 * dct; + Dimms = pDCTstat->MAdimms[dct]; val = 0; if (CtrlWordNum == 0) @@ -87,14 +95,21 @@ static u32 mct_ControlRC(struct MCTStatStruc *pMCTstat, static void mct_SendCtrlWrd(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstat, u32 val) { + u32 reg_off = 0; u32 dev = pDCTstat->dev_dct; - val |= Get_NB32(dev, 0x7C) & ~0xFFFFFF; + if (pDCTstat->CSPresent_DCT[0] > 0) { + reg_off = 0; + } else if (pDCTstat->CSPresent_DCT[1] > 0 ){ + reg_off = 0x100; + } + + val |= Get_NB32(dev, reg_off + 0x7C) & ~0xFFFFFF; val |= 1 << SendControlWord; - Set_NB32(dev, 0x7C, val); + Set_NB32(dev, reg_off + 0x7C, val); do { - val = Get_NB32(dev, 0x7C); + val = Get_NB32(dev, reg_off + 0x7C); } while (val & (1 << SendControlWord)); } @@ -104,6 +119,7 @@ void mct_DramControlReg_Init_D(struct MCTStatStruc *pMCTstat, u8 MrsChipSel; u32 dev = pDCTstat->dev_dct; u32 val, cw; + u32 reg_off = 0x100 * dct; mct_Wait(1600); @@ -111,7 +127,7 @@ void mct_DramControlReg_Init_D(struct MCTStatStruc *pMCTstat, for (MrsChipSel = 0; MrsChipSel < 8; MrsChipSel ++, MrsChipSel ++) { if (pDCTstat->CSPresent & (1 << MrsChipSel)) { - val = Get_NB32(dev, 0xA8); + val = Get_NB32(dev, reg_off + 0xA8); val &= ~(0xF << 8); switch (MrsChipSel) { @@ -128,7 +144,7 @@ void mct_DramControlReg_Init_D(struct MCTStatStruc *pMCTstat, case 7: val |= (3 << 6) << 8; } - Set_NB32(dev, 0xA8, val); + Set_NB32(dev, reg_off + 0xA8 , val); for (cw=0; cw <=15; cw ++) { mct_Wait(1600); diff --git a/src/northbridge/amd/amdmct/mct_ddr3/mctwl.c b/src/northbridge/amd/amdmct/mct_ddr3/mctwl.c index d14bc0dd58..d4b531f3af 100644 --- a/src/northbridge/amd/amdmct/mct_ddr3/mctwl.c +++ b/src/northbridge/amd/amdmct/mct_ddr3/mctwl.c @@ -86,7 +86,7 @@ void PrepareC_DCT(struct MCTStatStruc *pMCTstat, for (dimm = 0; dimm < MAX_TOTAL_DIMMS; dimm++) { u8 DimmRanks; - if (DimmValid & (1 << dimm)) { + if (DimmValid & (1 << (dimm << 1))) { DimmRanks = 1; if (pDCTstat->DimmDRPresent & (1 << (dimm+dct))) DimmRanks = 2; -- cgit v1.2.3