Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2010 Advanced Micro Devices, Inc. |
Timothy Pearson | 730a043 | 2015-10-16 13:51:51 -0500 | [diff] [blame^] | 5 | * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; version 2 of the License. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 15 | */ |
| 16 | |
| 17 | static u32 mct_ControlRC(struct MCTStatStruc *pMCTstat, |
| 18 | struct DCTStatStruc *pDCTstat, u32 MrsChipSel, u32 CtrlWordNum) |
| 19 | { |
| 20 | u8 Dimms, DimmNum, MaxDimm, Speed; |
| 21 | u32 val; |
Kerry She | 99cfa1e | 2010-08-30 07:31:31 +0000 | [diff] [blame] | 22 | u32 dct = 0; |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 23 | |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 24 | DimmNum = (MrsChipSel >> 20) & 0xFE; |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 25 | |
| 26 | /* assume dct=0; */ |
| 27 | /* if (dct == 1) */ |
| 28 | /* DimmNum ++; */ |
| 29 | /* cl +=8; */ |
| 30 | |
| 31 | MaxDimm = mctGet_NVbits(NV_MAX_DIMMS); |
| 32 | Speed = pDCTstat->DIMMAutoSpeed; |
Kerry She | 99cfa1e | 2010-08-30 07:31:31 +0000 | [diff] [blame] | 33 | |
| 34 | if (pDCTstat->CSPresent_DCT[0] > 0) { |
| 35 | dct = 0; |
| 36 | } else if (pDCTstat->CSPresent_DCT[1] > 0 ){ |
| 37 | dct = 1; |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 38 | DimmNum ++; |
Kerry She | 99cfa1e | 2010-08-30 07:31:31 +0000 | [diff] [blame] | 39 | } |
Kerry She | 99cfa1e | 2010-08-30 07:31:31 +0000 | [diff] [blame] | 40 | Dimms = pDCTstat->MAdimms[dct]; |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 41 | |
| 42 | val = 0; |
| 43 | if (CtrlWordNum == 0) |
| 44 | val |= 1 << 1; |
| 45 | else if (CtrlWordNum == 1) { |
| 46 | if (!((pDCTstat->DimmDRPresent | pDCTstat->DimmQRPresent) & (1 << DimmNum))) |
| 47 | val |= 0xC; /* if single rank, set DBA1 and DBA0 */ |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 48 | } else if (CtrlWordNum == 2) { |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 49 | if (MaxDimm == 4) { |
| 50 | if (Speed == 4) { |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 51 | if (((pDCTstat->DimmQRPresent & (1 << DimmNum)) && (Dimms == 1)) || (Dimms == 2)) |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 52 | if (!(pDCTstat->MirrPresU_NumRegR & (1 << DimmNum))) |
| 53 | val |= 1 << 2; |
| 54 | } else { |
| 55 | if (pDCTstat->MirrPresU_NumRegR & (1 << DimmNum)) |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 56 | val |= 1 << 2; |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 57 | } |
| 58 | } else { |
| 59 | if (Dimms > 1) |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 60 | val |= 1 << 2; |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 61 | } |
| 62 | } else if (CtrlWordNum == 3) { |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 63 | val |= (pDCTstat->CtrlWrd3 >> (DimmNum << 2)) & 0xFF; |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 64 | } else if (CtrlWordNum == 4) { |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 65 | val |= (pDCTstat->CtrlWrd4 >> (DimmNum << 2)) & 0xFF; |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 66 | } else if (CtrlWordNum == 5) { |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 67 | val |= (pDCTstat->CtrlWrd5 >> (DimmNum << 2)) & 0xFF; |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 68 | } else if (CtrlWordNum == 8) { |
| 69 | if (MaxDimm == 4) |
| 70 | if (Speed == 4) |
| 71 | if (pDCTstat->MirrPresU_NumRegR & (1 << DimmNum)) |
| 72 | val |= 1 << 2; |
| 73 | } else if (CtrlWordNum == 9) { |
| 74 | val |= 0xD; /* DBA1, DBA0, DA3 = 0 */ |
| 75 | } |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 76 | val &= 0xffffff0f; |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 77 | |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 78 | val = MrsChipSel | ((val >> 2) & 3) << 16 | ((val & 3) << 3); |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 79 | |
| 80 | /* transfer Control word number to address [BA2,A2,A1,A0] */ |
| 81 | if (CtrlWordNum > 7) { |
| 82 | val |= 1 << 18; |
| 83 | CtrlWordNum &= 7; |
| 84 | } |
| 85 | val |= CtrlWordNum; |
| 86 | |
| 87 | return val; |
| 88 | } |
| 89 | |
| 90 | static void mct_SendCtrlWrd(struct MCTStatStruc *pMCTstat, |
| 91 | struct DCTStatStruc *pDCTstat, u32 val) |
| 92 | { |
Timothy Pearson | 730a043 | 2015-10-16 13:51:51 -0500 | [diff] [blame^] | 93 | uint8_t dct = 0; |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 94 | u32 dev = pDCTstat->dev_dct; |
| 95 | |
Kerry She | 99cfa1e | 2010-08-30 07:31:31 +0000 | [diff] [blame] | 96 | if (pDCTstat->CSPresent_DCT[0] > 0) { |
Timothy Pearson | 730a043 | 2015-10-16 13:51:51 -0500 | [diff] [blame^] | 97 | dct = 0; |
Kerry She | 99cfa1e | 2010-08-30 07:31:31 +0000 | [diff] [blame] | 98 | } else if (pDCTstat->CSPresent_DCT[1] > 0 ){ |
Timothy Pearson | 730a043 | 2015-10-16 13:51:51 -0500 | [diff] [blame^] | 99 | dct = 1; |
Kerry She | 99cfa1e | 2010-08-30 07:31:31 +0000 | [diff] [blame] | 100 | } |
| 101 | |
Timothy Pearson | 730a043 | 2015-10-16 13:51:51 -0500 | [diff] [blame^] | 102 | val |= Get_NB32_DCT(dev, dct, 0x7C) & ~0xFFFFFF; |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 103 | val |= 1 << SendControlWord; |
Timothy Pearson | 730a043 | 2015-10-16 13:51:51 -0500 | [diff] [blame^] | 104 | Set_NB32_DCT(dev, dct, 0x7C, val); |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 105 | |
| 106 | do { |
Timothy Pearson | 730a043 | 2015-10-16 13:51:51 -0500 | [diff] [blame^] | 107 | val = Get_NB32_DCT(dev, dct, 0x7C); |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 108 | } while (val & (1 << SendControlWord)); |
| 109 | } |
| 110 | |
| 111 | void mct_DramControlReg_Init_D(struct MCTStatStruc *pMCTstat, |
| 112 | struct DCTStatStruc *pDCTstat, u8 dct) |
| 113 | { |
| 114 | u8 MrsChipSel; |
| 115 | u32 dev = pDCTstat->dev_dct; |
| 116 | u32 val, cw; |
| 117 | |
| 118 | mct_Wait(1600); |
| 119 | |
| 120 | mct_Wait(1200); |
| 121 | |
| 122 | for (MrsChipSel = 0; MrsChipSel < 8; MrsChipSel ++, MrsChipSel ++) { |
| 123 | if (pDCTstat->CSPresent & (1 << MrsChipSel)) { |
Timothy Pearson | 730a043 | 2015-10-16 13:51:51 -0500 | [diff] [blame^] | 124 | val = Get_NB32_DCT(dev, dct, 0xa8); |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 125 | val &= ~(0xF << 8); |
| 126 | |
| 127 | switch (MrsChipSel) { |
| 128 | case 0: |
| 129 | case 1: |
| 130 | val |= 3 << 8; |
| 131 | case 2: |
| 132 | case 3: |
| 133 | val |= (3 << 2) << 8; |
| 134 | case 4: |
| 135 | case 5: |
| 136 | val |= (3 << 4) << 8; |
| 137 | case 6: |
| 138 | case 7: |
| 139 | val |= (3 << 6) << 8; |
| 140 | } |
Timothy Pearson | 730a043 | 2015-10-16 13:51:51 -0500 | [diff] [blame^] | 141 | Set_NB32_DCT(dev, dct, 0xa8, val); |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 142 | |
| 143 | for (cw=0; cw <=15; cw ++) { |
| 144 | mct_Wait(1600); |
| 145 | if (!(cw==6 || cw==7)) { |
| 146 | val = mct_ControlRC(pMCTstat, pDCTstat, MrsChipSel << 20, cw); |
| 147 | mct_SendCtrlWrd(pMCTstat, pDCTstat, val); |
| 148 | } |
| 149 | } |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | mct_Wait(1200); |
| 154 | } |
| 155 | |
| 156 | void FreqChgCtrlWrd(struct MCTStatStruc *pMCTstat, |
| 157 | struct DCTStatStruc *pDCTstat) |
| 158 | { |
| 159 | u32 SaveSpeed = pDCTstat->DIMMAutoSpeed; |
| 160 | u32 MrsChipSel; |
| 161 | u32 dev = pDCTstat->dev_dct; |
| 162 | u32 val; |
| 163 | |
| 164 | pDCTstat->DIMMAutoSpeed = pDCTstat->TargetFreq; |
| 165 | for (MrsChipSel=0; MrsChipSel < 8; MrsChipSel++, MrsChipSel++) { |
| 166 | if (pDCTstat->CSPresent & (1 << MrsChipSel)) { |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 167 | /* 2. Program F2x[1, 0]A8[CtrlWordCS]=bit mask for target chip selects. */ |
Timothy Pearson | 730a043 | 2015-10-16 13:51:51 -0500 | [diff] [blame^] | 168 | val = Get_NB32_DCT(dev, 0, 0xA8); /* TODO: dct 0 / 1 select */ |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 169 | val &= ~(0xFF << 8); |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 170 | val |= (0x3 << (MrsChipSel & 0xFE)) << 8; |
Timothy Pearson | 730a043 | 2015-10-16 13:51:51 -0500 | [diff] [blame^] | 171 | Set_NB32_DCT(dev, 0, 0xA8, val); /* TODO: dct 0 / 1 select */ |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 172 | |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 173 | /* Resend control word 10 */ |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 174 | mct_Wait(1600); |
| 175 | switch (pDCTstat->TargetFreq) { |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 176 | case 5: |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 177 | mct_SendCtrlWrd(pMCTstat, pDCTstat, MrsChipSel << 20 | 0x4000A); |
| 178 | break; |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 179 | case 6: |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 180 | mct_SendCtrlWrd(pMCTstat, pDCTstat, MrsChipSel << 20 | 0x40012); |
| 181 | break; |
| 182 | case 7: |
| 183 | mct_SendCtrlWrd(pMCTstat, pDCTstat, MrsChipSel << 20 | 0x4001A); |
| 184 | break; |
| 185 | } |
| 186 | |
| 187 | mct_Wait(1600); |
| 188 | |
Zheng Bao | 69436e1 | 2011-01-06 02:18:12 +0000 | [diff] [blame] | 189 | /* Resend control word 2 */ |
Zheng Bao | eb75f65 | 2010-04-23 17:32:48 +0000 | [diff] [blame] | 190 | val = mct_ControlRC(pMCTstat, pDCTstat, MrsChipSel << 20, 2); |
| 191 | mct_SendCtrlWrd(pMCTstat, pDCTstat, val); |
| 192 | |
| 193 | mct_Wait(1600); |
| 194 | |
| 195 | /* Resend control word 8 */ |
| 196 | val = mct_ControlRC(pMCTstat, pDCTstat, MrsChipSel << 20, 8); |
| 197 | mct_SendCtrlWrd(pMCTstat, pDCTstat, val); |
| 198 | |
| 199 | mct_Wait(1600); |
| 200 | } |
| 201 | } |
| 202 | pDCTstat->DIMMAutoSpeed = SaveSpeed; |
| 203 | } |