WANG Siyuan | f77f734 | 2013-08-13 17:09:51 +0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2012-2013 Advanced Micro Devices, Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
WANG Siyuan | f77f734 | 2013-08-13 17:09:51 +0800 | [diff] [blame] | 14 | */ |
| 15 | |
| 16 | /* No IDE functionality */ |
| 17 | |
| 18 | #if 0 |
| 19 | /* |
| 20 | Scope (_SB) { |
| 21 | Device(PCI0) { |
| 22 | Device(IDEC) { |
| 23 | Name(_ADR, 0x00140001) |
| 24 | #include "ide.asl" |
| 25 | } |
| 26 | } |
| 27 | } |
| 28 | */ |
| 29 | |
| 30 | /* Some timing tables */ |
| 31 | Name(UDTT, Package(){ /* Udma timing table */ |
| 32 | 120, 90, 60, 45, 30, 20, 15, 0 /* UDMA modes 0 -> 6 */ |
| 33 | }) |
| 34 | |
| 35 | Name(MDTT, Package(){ /* MWDma timing table */ |
| 36 | 480, 150, 120, 0 /* Legacy DMA modes 0 -> 2 */ |
| 37 | }) |
| 38 | |
| 39 | Name(POTT, Package(){ /* Pio timing table */ |
| 40 | 600, 390, 270, 180, 120, 0 /* PIO modes 0 -> 4 */ |
| 41 | }) |
| 42 | |
| 43 | /* Some timing register value tables */ |
| 44 | Name(MDRT, Package(){ /* MWDma timing register table */ |
| 45 | 0x77, 0x21, 0x20, 0xFF /* Legacy DMA modes 0 -> 2 */ |
| 46 | }) |
| 47 | |
| 48 | Name(PORT, Package(){ |
| 49 | 0x99, 0x47, 0x34, 0x22, 0x20, 0x99 /* PIO modes 0 -> 4 */ |
| 50 | }) |
| 51 | |
| 52 | OperationRegion(ICRG, PCI_Config, 0x40, 0x20) /* ide control registers */ |
| 53 | Field(ICRG, AnyAcc, NoLock, Preserve) |
| 54 | { |
| 55 | PPTS, 8, /* Primary PIO Slave Timing */ |
| 56 | PPTM, 8, /* Primary PIO Master Timing */ |
| 57 | OFFSET(0x04), PMTS, 8, /* Primary MWDMA Slave Timing */ |
| 58 | PMTM, 8, /* Primary MWDMA Master Timing */ |
| 59 | OFFSET(0x08), PPCR, 8, /* Primary PIO Control */ |
| 60 | OFFSET(0x0A), PPMM, 4, /* Primary PIO master Mode */ |
| 61 | PPSM, 4, /* Primary PIO slave Mode */ |
| 62 | OFFSET(0x14), PDCR, 2, /* Primary UDMA Control */ |
| 63 | OFFSET(0x16), PDMM, 4, /* Primary UltraDMA Mode */ |
| 64 | PDSM, 4, /* Primary UltraDMA Mode */ |
| 65 | } |
| 66 | |
| 67 | Method(GTTM, 1) /* get total time*/ |
| 68 | { |
| 69 | Store(And(Arg0, 0x0F), Local0) /* Recovery Width */ |
| 70 | Increment(Local0) |
| 71 | Store(ShiftRight(Arg0, 4), Local1) /* Command Width */ |
| 72 | Increment(Local1) |
| 73 | Return(Multiply(30, Add(Local0, Local1))) |
| 74 | } |
| 75 | |
| 76 | Device(PRID) |
| 77 | { |
| 78 | Name (_ADR, Zero) |
| 79 | Method(_GTM, 0) |
| 80 | { |
| 81 | NAME(OTBF, Buffer(20) { /* out buffer */ |
| 82 | 0xFF, 0xFF, 0xFF, 0xFF, |
| 83 | 0xFF, 0xFF, 0xFF, 0xFF, |
| 84 | 0xFF, 0xFF, 0xFF, 0xFF, |
| 85 | 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 |
| 86 | }) |
| 87 | |
| 88 | CreateDwordField(OTBF, 0, PSD0) /* PIO spd0 */ |
| 89 | CreateDwordField(OTBF, 4, DSD0) /* DMA spd0 */ |
| 90 | CreateDwordField(OTBF, 8, PSD1) /* PIO spd1 */ |
| 91 | CreateDwordField(OTBF, 12, DSD1) /* DMA spd1 */ |
| 92 | CreateDwordField(OTBF, 16, BFFG) /* buffer flags */ |
| 93 | |
| 94 | /* Just return if the channel is disabled */ |
| 95 | If(And(PPCR, 0x01)) { /* primary PIO control */ |
| 96 | Return(OTBF) |
| 97 | } |
| 98 | |
| 99 | /* Always tell them independent timing available and IOChannelReady used on both drives */ |
| 100 | Or(BFFG, 0x1A, BFFG) |
| 101 | |
| 102 | /* save total time of primary PIO master timing to PIO spd0 */ |
| 103 | Store(GTTM(PPTM), PSD0) |
| 104 | /* save total time of primary PIO slave Timing to PIO spd1 */ |
| 105 | Store(GTTM(PPTS), PSD1) |
| 106 | |
| 107 | If(And(PDCR, 0x01)) { /* It's under UDMA mode */ |
| 108 | Or(BFFG, 0x01, BFFG) |
| 109 | Store(DerefOf(Index(UDTT, PDMM)), DSD0) |
| 110 | } |
| 111 | Else { |
| 112 | Store(GTTM(PMTM), DSD0) /* Primary MWDMA Master Timing, DmaSpd0 */ |
| 113 | } |
| 114 | |
| 115 | If(And(PDCR, 0x02)) { /* It's under UDMA mode */ |
| 116 | Or(BFFG, 0x04, BFFG) |
| 117 | Store(DerefOf(Index(UDTT, PDSM)), DSD1) |
| 118 | } |
| 119 | Else { |
| 120 | Store(GTTM(PMTS), DSD1) /* Primary MWDMA Slave Timing, DmaSpd0 */ |
| 121 | } |
| 122 | |
| 123 | Return(OTBF) /* out buffer */ |
| 124 | } /* End Method(_GTM) */ |
| 125 | |
| 126 | Method(_STM, 3, NotSerialized) |
| 127 | { |
| 128 | NAME(INBF, Buffer(20) { /* in buffer */ |
| 129 | 0xFF, 0xFF, 0xFF, 0xFF, |
| 130 | 0xFF, 0xFF, 0xFF, 0xFF, |
| 131 | 0xFF, 0xFF, 0xFF, 0xFF, |
| 132 | 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 |
| 133 | }) |
| 134 | |
| 135 | CreateDwordField(INBF, 0, PSD0) /* PIO spd0 */ |
| 136 | CreateDwordField(INBF, 4, DSD0) /* PIO spd0 */ |
| 137 | CreateDwordField(INBF, 8, PSD1) /* PIO spd1 */ |
| 138 | CreateDwordField(INBF, 12, DSD1) /* DMA spd1 */ |
| 139 | CreateDwordField(INBF, 16, BFFG) /*buffer flag */ |
| 140 | |
| 141 | Store(Match(POTT, MLE, PSD0, MTR, 0, 0), Local0) |
| 142 | Divide(Local0, 5, PPMM,) /* Primary PIO master Mode */ |
| 143 | Store(Match(POTT, MLE, PSD1, MTR, 0, 0), Local1) |
| 144 | Divide(Local1, 5, PPSM,) /* Primary PIO slave Mode */ |
| 145 | |
| 146 | Store(DerefOf(Index(PORT, Local0)), PPTM) /* Primary PIO Master Timing */ |
| 147 | Store(DerefOf(Index(PORT, Local1)), PPTS) /* Primary PIO Slave Timing */ |
| 148 | |
| 149 | If(And(BFFG, 0x01)) { /* Drive 0 is under UDMA mode */ |
| 150 | Store(Match(UDTT, MLE, DSD0, MTR, 0, 0), Local0) |
| 151 | Divide(Local0, 7, PDMM,) |
| 152 | Or(PDCR, 0x01, PDCR) |
| 153 | } |
| 154 | Else { |
| 155 | If(LNotEqual(DSD0, 0xFFFFFFFF)) { |
| 156 | Store(Match(MDTT, MLE, DSD0, MTR, 0, 0), Local0) |
| 157 | Store(DerefOf(Index(MDRT, Local0)), PMTM) |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | If(And(BFFG, 0x04)) { /* Drive 1 is under UDMA mode */ |
| 162 | Store(Match(UDTT, MLE, DSD1, MTR, 0, 0), Local0) |
| 163 | Divide(Local0, 7, PDSM,) |
| 164 | Or(PDCR, 0x02, PDCR) |
| 165 | } |
| 166 | Else { |
| 167 | If(LNotEqual(DSD1, 0xFFFFFFFF)) { |
| 168 | Store(Match(MDTT, MLE, DSD1, MTR, 0, 0), Local0) |
| 169 | Store(DerefOf(Index(MDRT, Local0)), PMTS) |
| 170 | } |
| 171 | } |
| 172 | /* Return(INBF) */ |
| 173 | } /*End Method(_STM) */ |
| 174 | Device(MST) |
| 175 | { |
| 176 | Name(_ADR, 0) |
| 177 | Method(_GTF) { |
| 178 | Name(CMBF, Buffer(21) { |
| 179 | 0x03, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xEF, |
| 180 | 0x03, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xEF, |
| 181 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF5 |
| 182 | }) |
| 183 | CreateByteField(CMBF, 1, POMD) |
| 184 | CreateByteField(CMBF, 8, DMMD) |
| 185 | CreateByteField(CMBF, 5, CMDA) |
| 186 | CreateByteField(CMBF, 12, CMDB) |
| 187 | CreateByteField(CMBF, 19, CMDC) |
| 188 | |
| 189 | Store(0xA0, CMDA) |
| 190 | Store(0xA0, CMDB) |
| 191 | Store(0xA0, CMDC) |
| 192 | |
| 193 | Or(PPMM, 0x08, POMD) |
| 194 | |
| 195 | If(And(PDCR, 0x01)) { |
| 196 | Or(PDMM, 0x40, DMMD) |
| 197 | } |
| 198 | Else { |
| 199 | Store(Match |
| 200 | (MDTT, MLE, GTTM(PMTM), |
| 201 | MTR, 0, 0), Local0) |
| 202 | If(LLess(Local0, 3)) { |
| 203 | Or(0x20, Local0, DMMD) |
| 204 | } |
| 205 | } |
| 206 | Return(CMBF) |
| 207 | } |
| 208 | } /* End Device(MST) */ |
| 209 | |
| 210 | Device(SLAV) |
| 211 | { |
| 212 | Name(_ADR, 1) |
| 213 | Method(_GTF) { |
| 214 | Name(CMBF, Buffer(21) { |
| 215 | 0x03, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xEF, |
| 216 | 0x03, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xEF, |
| 217 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF5 |
| 218 | }) |
| 219 | CreateByteField(CMBF, 1, POMD) |
| 220 | CreateByteField(CMBF, 8, DMMD) |
| 221 | CreateByteField(CMBF, 5, CMDA) |
| 222 | CreateByteField(CMBF, 12, CMDB) |
| 223 | CreateByteField(CMBF, 19, CMDC) |
| 224 | |
| 225 | Store(0xB0, CMDA) |
| 226 | Store(0xB0, CMDB) |
| 227 | Store(0xB0, CMDC) |
| 228 | |
| 229 | Or(PPSM, 0x08, POMD) |
| 230 | |
| 231 | If(And(PDCR, 0x02)) { |
| 232 | Or(PDSM, 0x40, DMMD) |
| 233 | } |
| 234 | Else { |
| 235 | Store(Match |
| 236 | (MDTT, MLE, GTTM(PMTS), |
| 237 | MTR, 0, 0), Local0) |
| 238 | If(LLess(Local0, 3)) { |
| 239 | Or(0x20, Local0, DMMD) |
| 240 | } |
| 241 | } |
| 242 | Return(CMBF) |
| 243 | } |
| 244 | } /* End Device(SLAV) */ |
| 245 | } |
| 246 | #endif |