Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * Copyright (C) 1998-1999 Andrzej Krzysztofowicz, Author and Maintainer |
| 3 | * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org> |
Alan Cox | ccd32e2 | 2008-11-02 21:40:08 +0100 | [diff] [blame] | 4 | * Copyright (C) 2003 Red Hat |
Sergei Shtylyov | 07af427 | 2007-03-03 17:48:53 +0100 | [diff] [blame] | 5 | * Copyright (C) 2006-2007 MontaVista Software, Inc. <source@mvista.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | * |
| 7 | * May be copied or modified under the terms of the GNU General Public License |
| 8 | * |
Bartlomiej Zolnierkiewicz | 2be564b | 2008-02-01 23:09:30 +0100 | [diff] [blame] | 9 | * Documentation: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | * Publically available from Intel web site. Errata documentation |
| 12 | * is also publically available. As an aide to anyone hacking on this |
| 13 | * driver the list of errata that are relevant is below.going back to |
| 14 | * PIIX4. Older device documentation is now a bit tricky to find. |
| 15 | * |
| 16 | * Errata of note: |
| 17 | * |
| 18 | * Unfixable |
| 19 | * PIIX4 errata #9 - Only on ultra obscure hw |
| 20 | * ICH3 errata #13 - Not observed to affect real hw |
| 21 | * by Intel |
| 22 | * |
| 23 | * Things we must deal with |
| 24 | * PIIX4 errata #10 - BM IDE hang with non UDMA |
| 25 | * (must stop/start dma to recover) |
| 26 | * 440MX errata #15 - As PIIX4 errata #10 |
| 27 | * PIIX4 errata #15 - Must not read control registers |
| 28 | * during a PIO transfer |
| 29 | * 440MX errata #13 - As PIIX4 errata #15 |
| 30 | * ICH2 errata #21 - DMA mode 0 doesn't work right |
| 31 | * ICH0/1 errata #55 - As ICH2 errata #21 |
| 32 | * ICH2 spec c #9 - Extra operations needed to handle |
| 33 | * drive hotswap [NOT YET SUPPORTED] |
| 34 | * ICH2 spec c #20 - IDE PRD must not cross a 64K boundary |
| 35 | * and must be dword aligned |
| 36 | * ICH2 spec c #24 - UDMA mode 4,5 t85/86 should be 6ns not 3.3 |
| 37 | * |
| 38 | * Should have been BIOS fixed: |
| 39 | * 450NX: errata #19 - DMA hangs on old 450NX |
| 40 | * 450NX: errata #20 - DMA hangs on old 450NX |
| 41 | * 450NX: errata #25 - Corruption with DMA on old 450NX |
| 42 | * ICH3 errata #15 - IDE deadlock under high load |
| 43 | * (BIOS must set dev 31 fn 0 bit 23) |
| 44 | * ICH3 errata #18 - Don't use native mode |
| 45 | */ |
| 46 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | #include <linux/types.h> |
| 48 | #include <linux/module.h> |
| 49 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | #include <linux/pci.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | #include <linux/ide.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #include <linux/init.h> |
| 53 | |
| 54 | #include <asm/io.h> |
| 55 | |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 56 | #define DRV_NAME "piix" |
| 57 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | static int no_piix_dma; |
| 59 | |
| 60 | /** |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 61 | * piix_set_pio_mode - set host controller for PIO mode |
| 62 | * @drive: drive |
| 63 | * @pio: PIO mode number |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | * |
Sergei Shtylyov | 07af427 | 2007-03-03 17:48:53 +0100 | [diff] [blame] | 65 | * Set the interface PIO mode based upon the settings done by AMI BIOS. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | */ |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 67 | |
| 68 | static void piix_set_pio_mode(ide_drive_t *drive, const u8 pio) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | { |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 70 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 71 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
Sergei Shtylyov | 30dfd12 | 2007-02-07 18:18:28 +0100 | [diff] [blame] | 72 | int is_slave = drive->dn & 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | int master_port = hwif->channel ? 0x42 : 0x40; |
| 74 | int slave_port = 0x44; |
| 75 | unsigned long flags; |
| 76 | u16 master_data; |
| 77 | u8 slave_data; |
Alan Cox | 4fb0f76 | 2006-06-26 00:26:12 -0700 | [diff] [blame] | 78 | static DEFINE_SPINLOCK(tune_lock); |
Alan Cox | 5ac2469 | 2006-10-03 01:14:23 -0700 | [diff] [blame] | 79 | int control = 0; |
Alan Cox | 4fb0f76 | 2006-06-26 00:26:12 -0700 | [diff] [blame] | 80 | |
Sergei Shtylyov | 30dfd12 | 2007-02-07 18:18:28 +0100 | [diff] [blame] | 81 | /* ISP RTC */ |
Alan Cox | 5ac2469 | 2006-10-03 01:14:23 -0700 | [diff] [blame] | 82 | static const u8 timings[][2]= { |
| 83 | { 0, 0 }, |
| 84 | { 0, 0 }, |
| 85 | { 1, 0 }, |
| 86 | { 2, 1 }, |
| 87 | { 2, 3 }, }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | |
Alan Cox | 4fb0f76 | 2006-06-26 00:26:12 -0700 | [diff] [blame] | 89 | /* |
| 90 | * Master vs slave is synchronized above us but the slave register is |
| 91 | * shared by the two hwifs so the corner case of two slave timeouts in |
| 92 | * parallel must be locked. |
| 93 | */ |
| 94 | spin_lock_irqsave(&tune_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | pci_read_config_word(dev, master_port, &master_data); |
Alan Cox | 5ac2469 | 2006-10-03 01:14:23 -0700 | [diff] [blame] | 96 | |
Sergei Shtylyov | 30dfd12 | 2007-02-07 18:18:28 +0100 | [diff] [blame] | 97 | if (pio > 1) |
Alan Cox | 5ac2469 | 2006-10-03 01:14:23 -0700 | [diff] [blame] | 98 | control |= 1; /* Programmable timing on */ |
| 99 | if (drive->media == ide_disk) |
| 100 | control |= 4; /* Prefetch, post write */ |
Sergei Shtylyov | 30dfd12 | 2007-02-07 18:18:28 +0100 | [diff] [blame] | 101 | if (pio > 2) |
Alan Cox | 5ac2469 | 2006-10-03 01:14:23 -0700 | [diff] [blame] | 102 | control |= 2; /* IORDY */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | if (is_slave) { |
Sergei Shtylyov | 30dfd12 | 2007-02-07 18:18:28 +0100 | [diff] [blame] | 104 | master_data |= 0x4000; |
| 105 | master_data &= ~0x0070; |
Alan Cox | 5ac2469 | 2006-10-03 01:14:23 -0700 | [diff] [blame] | 106 | if (pio > 1) { |
Sergei Shtylyov | 07af427 | 2007-03-03 17:48:53 +0100 | [diff] [blame] | 107 | /* Set PPE, IE and TIME */ |
| 108 | master_data |= control << 4; |
Alan Cox | 5ac2469 | 2006-10-03 01:14:23 -0700 | [diff] [blame] | 109 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | pci_read_config_byte(dev, slave_port, &slave_data); |
Sergei Shtylyov | 07af427 | 2007-03-03 17:48:53 +0100 | [diff] [blame] | 111 | slave_data &= hwif->channel ? 0x0f : 0xf0; |
| 112 | slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << |
| 113 | (hwif->channel ? 4 : 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | } else { |
Sergei Shtylyov | 30dfd12 | 2007-02-07 18:18:28 +0100 | [diff] [blame] | 115 | master_data &= ~0x3307; |
Alan Cox | 5ac2469 | 2006-10-03 01:14:23 -0700 | [diff] [blame] | 116 | if (pio > 1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | /* enable PPE, IE and TIME */ |
Sergei Shtylyov | 07af427 | 2007-03-03 17:48:53 +0100 | [diff] [blame] | 118 | master_data |= control; |
Alan Cox | 5ac2469 | 2006-10-03 01:14:23 -0700 | [diff] [blame] | 119 | } |
Sergei Shtylyov | 07af427 | 2007-03-03 17:48:53 +0100 | [diff] [blame] | 120 | master_data |= (timings[pio][0] << 12) | (timings[pio][1] << 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | } |
| 122 | pci_write_config_word(dev, master_port, master_data); |
| 123 | if (is_slave) |
| 124 | pci_write_config_byte(dev, slave_port, slave_data); |
Alan Cox | 4fb0f76 | 2006-06-26 00:26:12 -0700 | [diff] [blame] | 125 | spin_unlock_irqrestore(&tune_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | } |
| 127 | |
| 128 | /** |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 129 | * piix_set_dma_mode - set host controller for DMA mode |
| 130 | * @drive: drive |
| 131 | * @speed: DMA mode |
Sergei Shtylyov | 07af427 | 2007-03-03 17:48:53 +0100 | [diff] [blame] | 132 | * |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 133 | * Set a PIIX host controller to the desired DMA mode. This involves |
| 134 | * programming the right timing data into the PCI configuration space. |
Sergei Shtylyov | 07af427 | 2007-03-03 17:48:53 +0100 | [diff] [blame] | 135 | */ |
Bartlomiej Zolnierkiewicz | 26bcb87 | 2007-10-11 23:54:00 +0200 | [diff] [blame] | 136 | |
Bartlomiej Zolnierkiewicz | 88b2b32 | 2007-10-13 17:47:51 +0200 | [diff] [blame] | 137 | static void piix_set_dma_mode(ide_drive_t *drive, const u8 speed) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | { |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 139 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 140 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | u8 maslave = hwif->channel ? 0x42 : 0x40; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | int a_speed = 3 << (drive->dn * 4); |
| 143 | int u_flag = 1 << drive->dn; |
| 144 | int v_flag = 0x01 << drive->dn; |
| 145 | int w_flag = 0x10 << drive->dn; |
| 146 | int u_speed = 0; |
| 147 | int sitre; |
| 148 | u16 reg4042, reg4a; |
Bartlomiej Zolnierkiewicz | 1c54a93 | 2007-10-16 22:29:56 +0200 | [diff] [blame] | 149 | u8 reg48, reg54, reg55; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | |
| 151 | pci_read_config_word(dev, maslave, ®4042); |
| 152 | sitre = (reg4042 & 0x4000) ? 1 : 0; |
| 153 | pci_read_config_byte(dev, 0x48, ®48); |
| 154 | pci_read_config_word(dev, 0x4a, ®4a); |
| 155 | pci_read_config_byte(dev, 0x54, ®54); |
| 156 | pci_read_config_byte(dev, 0x55, ®55); |
| 157 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | if (speed >= XFER_UDMA_0) { |
Bartlomiej Zolnierkiewicz | 4db90a1 | 2008-01-25 22:17:18 +0100 | [diff] [blame] | 159 | u8 udma = speed - XFER_UDMA_0; |
| 160 | |
| 161 | u_speed = min_t(u8, 2 - (udma & 1), udma) << (drive->dn * 4); |
| 162 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | if (!(reg48 & u_flag)) |
| 164 | pci_write_config_byte(dev, 0x48, reg48 | u_flag); |
| 165 | if (speed == XFER_UDMA_5) { |
| 166 | pci_write_config_byte(dev, 0x55, (u8) reg55|w_flag); |
| 167 | } else { |
| 168 | pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag); |
| 169 | } |
| 170 | if ((reg4a & a_speed) != u_speed) |
| 171 | pci_write_config_word(dev, 0x4a, (reg4a & ~a_speed) | u_speed); |
| 172 | if (speed > XFER_UDMA_2) { |
| 173 | if (!(reg54 & v_flag)) |
| 174 | pci_write_config_byte(dev, 0x54, reg54 | v_flag); |
| 175 | } else |
| 176 | pci_write_config_byte(dev, 0x54, reg54 & ~v_flag); |
| 177 | } else { |
Bartlomiej Zolnierkiewicz | 8c91abf | 2007-10-16 22:29:54 +0200 | [diff] [blame] | 178 | const u8 mwdma_to_pio[] = { 0, 3, 4 }; |
Bartlomiej Zolnierkiewicz | 1c54a93 | 2007-10-16 22:29:56 +0200 | [diff] [blame] | 179 | u8 pio; |
Bartlomiej Zolnierkiewicz | 8c91abf | 2007-10-16 22:29:54 +0200 | [diff] [blame] | 180 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | if (reg48 & u_flag) |
| 182 | pci_write_config_byte(dev, 0x48, reg48 & ~u_flag); |
| 183 | if (reg4a & a_speed) |
| 184 | pci_write_config_word(dev, 0x4a, reg4a & ~a_speed); |
| 185 | if (reg54 & v_flag) |
| 186 | pci_write_config_byte(dev, 0x54, reg54 & ~v_flag); |
| 187 | if (reg55 & w_flag) |
| 188 | pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag); |
Bartlomiej Zolnierkiewicz | 8c91abf | 2007-10-16 22:29:54 +0200 | [diff] [blame] | 189 | |
| 190 | if (speed >= XFER_MW_DMA_0) |
| 191 | pio = mwdma_to_pio[speed - XFER_MW_DMA_0]; |
| 192 | else |
| 193 | pio = 2; /* only SWDMA2 is allowed */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | |
Bartlomiej Zolnierkiewicz | 1c54a93 | 2007-10-16 22:29:56 +0200 | [diff] [blame] | 195 | piix_set_pio_mode(drive, pio); |
| 196 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | } |
| 198 | |
| 199 | /** |
Bartlomiej Zolnierkiewicz | 40d2dd7 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 200 | * init_chipset_ich - set up the ICH chipset |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 201 | * @dev: PCI device to set up |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 202 | * |
Bartlomiej Zolnierkiewicz | 40d2dd7 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 203 | * Initialize the PCI device as required. For the ICH this turns |
| 204 | * out to be nice and simple. |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 205 | */ |
| 206 | |
Bartlomiej Zolnierkiewicz | feb22b7 | 2008-10-10 22:39:32 +0200 | [diff] [blame] | 207 | static unsigned int init_chipset_ich(struct pci_dev *dev) |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 208 | { |
Bartlomiej Zolnierkiewicz | 40d2dd7 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 209 | u32 extra = 0; |
| 210 | |
| 211 | pci_read_config_dword(dev, 0x54, &extra); |
| 212 | pci_write_config_dword(dev, 0x54, extra | 0x400); |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 213 | |
| 214 | return 0; |
| 215 | } |
| 216 | |
| 217 | /** |
Bartlomiej Zolnierkiewicz | bfa7d8e | 2008-10-13 21:39:42 +0200 | [diff] [blame] | 218 | * ich_clear_irq - clear BMDMA status |
| 219 | * @drive: IDE drive |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 220 | * |
Bartlomiej Zolnierkiewicz | bfa7d8e | 2008-10-13 21:39:42 +0200 | [diff] [blame] | 221 | * ICHx contollers set DMA INTR no matter DMA or PIO. |
| 222 | * BMDMA status might need to be cleared even for |
| 223 | * PIO interrupts to prevent spurious/lost IRQ. |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 224 | */ |
Bartlomiej Zolnierkiewicz | bfa7d8e | 2008-10-13 21:39:42 +0200 | [diff] [blame] | 225 | static void ich_clear_irq(ide_drive_t *drive) |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 226 | { |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 227 | ide_hwif_t *hwif = drive->hwif; |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 228 | u8 dma_stat; |
| 229 | |
Bartlomiej Zolnierkiewicz | bfa7d8e | 2008-10-13 21:39:42 +0200 | [diff] [blame] | 230 | /* |
| 231 | * ide_dma_end() needs BMDMA status for error checking. |
| 232 | * So, skip clearing BMDMA status here and leave it |
| 233 | * to ide_dma_end() if this is DMA interrupt. |
| 234 | */ |
| 235 | if (drive->waiting_for_dma || hwif->dma_base == 0) |
| 236 | return; |
| 237 | |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 238 | /* clear the INTR & ERROR bits */ |
Bartlomiej Zolnierkiewicz | cab7f8e | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 239 | dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 240 | /* Should we force the bit as well ? */ |
Bartlomiej Zolnierkiewicz | cab7f8e | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 241 | outb(dma_stat, hwif->dma_base + ATA_DMA_STATUS); |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 242 | } |
| 243 | |
Bartlomiej Zolnierkiewicz | 7207626 | 2007-07-09 23:17:58 +0200 | [diff] [blame] | 244 | struct ich_laptop { |
| 245 | u16 device; |
| 246 | u16 subvendor; |
| 247 | u16 subdevice; |
| 248 | }; |
| 249 | |
| 250 | /* |
| 251 | * List of laptops that use short cables rather than 80 wire |
| 252 | */ |
| 253 | |
| 254 | static const struct ich_laptop ich_laptop[] = { |
| 255 | /* devid, subvendor, subdev */ |
sebdeg@ngi.it | afda5e4 | 2007-11-05 21:42:25 +0100 | [diff] [blame] | 256 | { 0x27DF, 0x1025, 0x0102 }, /* ICH7 on Acer 5602aWLMi */ |
Bartlomiej Zolnierkiewicz | 7207626 | 2007-07-09 23:17:58 +0200 | [diff] [blame] | 257 | { 0x27DF, 0x0005, 0x0280 }, /* ICH7 on Acer 5602WLMi */ |
| 258 | { 0x27DF, 0x1025, 0x0110 }, /* ICH7 on Acer 3682WLMi */ |
| 259 | { 0x27DF, 0x1043, 0x1267 }, /* ICH7 on Asus W5F */ |
Bartlomiej Zolnierkiewicz | dd0fd40 | 2007-11-27 21:35:56 +0100 | [diff] [blame] | 260 | { 0x27DF, 0x103C, 0x30A1 }, /* ICH7 on HP Compaq nc2400 */ |
Herton Ronaldo Krzesinski | a8269e5 | 2008-10-13 21:39:50 +0200 | [diff] [blame] | 261 | { 0x27DF, 0x1071, 0xD221 }, /* ICH7 on Hercules EC-900 */ |
Bartlomiej Zolnierkiewicz | 7207626 | 2007-07-09 23:17:58 +0200 | [diff] [blame] | 262 | { 0x24CA, 0x1025, 0x0061 }, /* ICH4 on Acer Aspire 2023WLMi */ |
Bartlomiej Zolnierkiewicz | 1fa5a40 | 2008-04-28 23:44:43 +0200 | [diff] [blame] | 263 | { 0x2653, 0x1043, 0x82D8 }, /* ICH6M on Asus Eee 701 */ |
Bartlomiej Zolnierkiewicz | 7207626 | 2007-07-09 23:17:58 +0200 | [diff] [blame] | 264 | /* end marker */ |
| 265 | { 0, } |
| 266 | }; |
| 267 | |
Bartlomiej Zolnierkiewicz | f454cbe | 2008-08-05 18:17:04 +0200 | [diff] [blame] | 268 | static u8 piix_cable_detect(ide_hwif_t *hwif) |
Bartlomiej Zolnierkiewicz | 74594fd | 2007-02-17 02:40:23 +0100 | [diff] [blame] | 269 | { |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 270 | struct pci_dev *pdev = to_pci_dev(hwif->dev); |
Bartlomiej Zolnierkiewicz | 7207626 | 2007-07-09 23:17:58 +0200 | [diff] [blame] | 271 | const struct ich_laptop *lap = &ich_laptop[0]; |
Bartlomiej Zolnierkiewicz | 74594fd | 2007-02-17 02:40:23 +0100 | [diff] [blame] | 272 | u8 reg54h = 0, mask = hwif->channel ? 0xc0 : 0x30; |
| 273 | |
Bartlomiej Zolnierkiewicz | 7207626 | 2007-07-09 23:17:58 +0200 | [diff] [blame] | 274 | /* check for specials */ |
| 275 | while (lap->device) { |
| 276 | if (lap->device == pdev->device && |
| 277 | lap->subvendor == pdev->subsystem_vendor && |
| 278 | lap->subdevice == pdev->subsystem_device) { |
| 279 | return ATA_CBL_PATA40_SHORT; |
| 280 | } |
| 281 | lap++; |
| 282 | } |
| 283 | |
| 284 | pci_read_config_byte(pdev, 0x54, ®54h); |
Bartlomiej Zolnierkiewicz | 74594fd | 2007-02-17 02:40:23 +0100 | [diff] [blame] | 285 | |
Bartlomiej Zolnierkiewicz | 49521f9 | 2007-07-09 23:17:58 +0200 | [diff] [blame] | 286 | return (reg54h & mask) ? ATA_CBL_PATA80 : ATA_CBL_PATA40; |
Bartlomiej Zolnierkiewicz | 74594fd | 2007-02-17 02:40:23 +0100 | [diff] [blame] | 287 | } |
| 288 | |
Albert Lee | f0dd871 | 2007-02-17 02:40:21 +0100 | [diff] [blame] | 289 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | * init_hwif_piix - fill in the hwif for the PIIX |
| 291 | * @hwif: IDE interface |
| 292 | * |
| 293 | * Set up the ide_hwif_t for the PIIX interface according to the |
| 294 | * capabilities of the hardware. |
| 295 | */ |
| 296 | |
| 297 | static void __devinit init_hwif_piix(ide_hwif_t *hwif) |
| 298 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | if (!hwif->dma_base) |
| 300 | return; |
| 301 | |
Bartlomiej Zolnierkiewicz | 74594fd | 2007-02-17 02:40:23 +0100 | [diff] [blame] | 302 | if (no_piix_dma) |
| 303 | hwif->ultra_mask = hwif->mwdma_mask = hwif->swdma_mask = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | } |
| 305 | |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 306 | static const struct ide_port_ops piix_port_ops = { |
| 307 | .set_pio_mode = piix_set_pio_mode, |
| 308 | .set_dma_mode = piix_set_dma_mode, |
| 309 | .cable_detect = piix_cable_detect, |
| 310 | }; |
| 311 | |
Bartlomiej Zolnierkiewicz | bfa7d8e | 2008-10-13 21:39:42 +0200 | [diff] [blame] | 312 | static const struct ide_port_ops ich_port_ops = { |
| 313 | .set_pio_mode = piix_set_pio_mode, |
| 314 | .set_dma_mode = piix_set_dma_mode, |
| 315 | .clear_irq = ich_clear_irq, |
| 316 | .cable_detect = piix_cable_detect, |
| 317 | }; |
| 318 | |
Bartlomiej Zolnierkiewicz | 3985ee3 | 2007-10-19 00:30:11 +0200 | [diff] [blame] | 319 | #ifndef CONFIG_IA64 |
Bartlomiej Zolnierkiewicz | 5e71d9c | 2008-04-26 17:36:35 +0200 | [diff] [blame] | 320 | #define IDE_HFLAGS_PIIX IDE_HFLAG_LEGACY_IRQS |
Bartlomiej Zolnierkiewicz | 3985ee3 | 2007-10-19 00:30:11 +0200 | [diff] [blame] | 321 | #else |
Bartlomiej Zolnierkiewicz | 5e71d9c | 2008-04-26 17:36:35 +0200 | [diff] [blame] | 322 | #define IDE_HFLAGS_PIIX 0 |
Bartlomiej Zolnierkiewicz | 3985ee3 | 2007-10-19 00:30:11 +0200 | [diff] [blame] | 323 | #endif |
| 324 | |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 325 | #define DECLARE_PIIX_DEV(udma) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | { \ |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 327 | .name = DRV_NAME, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | .init_hwif = init_hwif_piix, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \ |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 330 | .port_ops = &piix_port_ops, \ |
Bartlomiej Zolnierkiewicz | 3985ee3 | 2007-10-19 00:30:11 +0200 | [diff] [blame] | 331 | .host_flags = IDE_HFLAGS_PIIX, \ |
Bartlomiej Zolnierkiewicz | 4099d14 | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 332 | .pio_mask = ATA_PIO4, \ |
Bartlomiej Zolnierkiewicz | 5f8b6c3 | 2007-10-19 00:30:07 +0200 | [diff] [blame] | 333 | .swdma_mask = ATA_SWDMA2_ONLY, \ |
| 334 | .mwdma_mask = ATA_MWDMA12_ONLY, \ |
Bartlomiej Zolnierkiewicz | 1813720 | 2007-05-10 00:01:07 +0200 | [diff] [blame] | 335 | .udma_mask = udma, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | } |
| 337 | |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 338 | #define DECLARE_ICH_DEV(udma) \ |
Bartlomiej Zolnierkiewicz | 40d2dd7 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 339 | { \ |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 340 | .name = DRV_NAME, \ |
Bartlomiej Zolnierkiewicz | 40d2dd7 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 341 | .init_chipset = init_chipset_ich, \ |
Bartlomiej Zolnierkiewicz | bfa7d8e | 2008-10-13 21:39:42 +0200 | [diff] [blame] | 342 | .init_hwif = init_hwif_piix, \ |
Bartlomiej Zolnierkiewicz | 40d2dd7 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 343 | .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \ |
Bartlomiej Zolnierkiewicz | bfa7d8e | 2008-10-13 21:39:42 +0200 | [diff] [blame] | 344 | .port_ops = &ich_port_ops, \ |
Bartlomiej Zolnierkiewicz | 3985ee3 | 2007-10-19 00:30:11 +0200 | [diff] [blame] | 345 | .host_flags = IDE_HFLAGS_PIIX, \ |
Bartlomiej Zolnierkiewicz | 40d2dd7 | 2007-10-19 00:30:10 +0200 | [diff] [blame] | 346 | .pio_mask = ATA_PIO4, \ |
| 347 | .swdma_mask = ATA_SWDMA2_ONLY, \ |
| 348 | .mwdma_mask = ATA_MWDMA12_ONLY, \ |
| 349 | .udma_mask = udma, \ |
| 350 | } |
| 351 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 352 | static const struct ide_port_info piix_pci_info[] __devinitdata = { |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 353 | /* 0: MPIIX */ |
Sergei Shtylyov | d287223 | 2007-02-07 18:18:25 +0100 | [diff] [blame] | 354 | { /* |
| 355 | * MPIIX actually has only a single IDE channel mapped to |
| 356 | * the primary or secondary ports depending on the value |
| 357 | * of the bit 14 of the IDETIM register at offset 0x6c |
| 358 | */ |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 359 | .name = DRV_NAME, |
Sergei Shtylyov | d287223 | 2007-02-07 18:18:25 +0100 | [diff] [blame] | 360 | .enablebits = {{0x6d,0xc0,0x80}, {0x6d,0xc0,0xc0}}, |
Bartlomiej Zolnierkiewicz | 47b6878 | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 361 | .host_flags = IDE_HFLAG_ISA_PORTS | IDE_HFLAG_NO_DMA | |
Bartlomiej Zolnierkiewicz | 3985ee3 | 2007-10-19 00:30:11 +0200 | [diff] [blame] | 362 | IDE_HFLAGS_PIIX, |
Bartlomiej Zolnierkiewicz | 4099d14 | 2007-07-20 01:11:59 +0200 | [diff] [blame] | 363 | .pio_mask = ATA_PIO4, |
Bartlomiej Zolnierkiewicz | 3985ee3 | 2007-10-19 00:30:11 +0200 | [diff] [blame] | 364 | /* This is a painful system best to let it self tune for now */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 365 | }, |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 366 | /* 1: PIIXa/PIIXb/PIIX3 */ |
| 367 | DECLARE_PIIX_DEV(0x00), /* no udma */ |
| 368 | /* 2: PIIX4 */ |
| 369 | DECLARE_PIIX_DEV(ATA_UDMA2), |
| 370 | /* 3: ICH0 */ |
| 371 | DECLARE_ICH_DEV(ATA_UDMA2), |
| 372 | /* 4: ICH */ |
| 373 | DECLARE_ICH_DEV(ATA_UDMA4), |
| 374 | /* 5: PIIX4 */ |
| 375 | DECLARE_PIIX_DEV(ATA_UDMA4), |
| 376 | /* 6: ICH[2-7]/ICH[2-3]M/C-ICH/ICH5-SATA/ESB2/ICH8M */ |
| 377 | DECLARE_ICH_DEV(ATA_UDMA5), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | }; |
| 379 | |
| 380 | /** |
| 381 | * piix_init_one - called when a PIIX is found |
| 382 | * @dev: the piix device |
| 383 | * @id: the matching pci id |
| 384 | * |
| 385 | * Called when the PCI registration layer (or the IDE initialization) |
| 386 | * finds a device matching our IDE device tables. |
| 387 | */ |
| 388 | |
| 389 | static int __devinit piix_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
| 390 | { |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 391 | return ide_pci_init_one(dev, &piix_pci_info[id->driver_data], NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | } |
| 393 | |
| 394 | /** |
| 395 | * piix_check_450nx - Check for problem 450NX setup |
| 396 | * |
| 397 | * Check for the present of 450NX errata #19 and errata #25. If |
| 398 | * they are found, disable use of DMA IDE |
| 399 | */ |
| 400 | |
| 401 | static void __devinit piix_check_450nx(void) |
| 402 | { |
| 403 | struct pci_dev *pdev = NULL; |
| 404 | u16 cfg; |
Alan Cox | 1424e50 | 2006-09-30 23:27:28 -0700 | [diff] [blame] | 405 | while((pdev=pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, pdev))!=NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 406 | { |
| 407 | /* Look for 450NX PXB. Check for problem configurations |
| 408 | A PCI quirk checks bit 6 already */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | pci_read_config_word(pdev, 0x41, &cfg); |
| 410 | /* Only on the original revision: IDE DMA can hang */ |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 411 | if (pdev->revision == 0x00) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | no_piix_dma = 1; |
| 413 | /* On all revisions below 5 PXB bus lock must be disabled for IDE */ |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 414 | else if (cfg & (1<<14) && pdev->revision < 5) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | no_piix_dma = 2; |
| 416 | } |
| 417 | if(no_piix_dma) |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 418 | printk(KERN_WARNING DRV_NAME ": 450NX errata present, disabling IDE DMA.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | if(no_piix_dma == 2) |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 420 | printk(KERN_WARNING DRV_NAME ": A BIOS update may resolve this.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | } |
| 422 | |
Bartlomiej Zolnierkiewicz | 9cbcc5e | 2007-10-16 22:29:56 +0200 | [diff] [blame] | 423 | static const struct pci_device_id piix_pci_tbl[] = { |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 424 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371FB_0), 1 }, |
| 425 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371FB_1), 1 }, |
| 426 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371MX), 0 }, |
| 427 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371SB_1), 1 }, |
| 428 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371AB), 2 }, |
| 429 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801AB_1), 3 }, |
| 430 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82443MX_1), 2 }, |
| 431 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801AA_1), 4 }, |
| 432 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82372FB_1), 5 }, |
| 433 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82451NX), 2 }, |
| 434 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801BA_9), 6 }, |
| 435 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801BA_8), 6 }, |
| 436 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801CA_10), 6 }, |
| 437 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801CA_11), 6 }, |
| 438 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_11), 6 }, |
| 439 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801EB_11), 6 }, |
| 440 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801E_11), 6 }, |
| 441 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_10), 6 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | #ifdef CONFIG_BLK_DEV_IDE_SATA |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 443 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801EB_1), 6 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | #endif |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 445 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ESB_2), 6 }, |
| 446 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH6_19), 6 }, |
| 447 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH7_21), 6 }, |
| 448 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_1), 6 }, |
| 449 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ESB2_18), 6 }, |
| 450 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH8_6), 6 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | { 0, }, |
| 452 | }; |
| 453 | MODULE_DEVICE_TABLE(pci, piix_pci_tbl); |
| 454 | |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 455 | static struct pci_driver piix_pci_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | .name = "PIIX_IDE", |
| 457 | .id_table = piix_pci_tbl, |
| 458 | .probe = piix_init_one, |
Bartlomiej Zolnierkiewicz | da8c3e0 | 2008-07-24 22:53:24 +0200 | [diff] [blame] | 459 | .remove = ide_pci_remove, |
Bartlomiej Zolnierkiewicz | feb22b7 | 2008-10-10 22:39:32 +0200 | [diff] [blame] | 460 | .suspend = ide_pci_suspend, |
| 461 | .resume = ide_pci_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | }; |
| 463 | |
| 464 | static int __init piix_ide_init(void) |
| 465 | { |
| 466 | piix_check_450nx(); |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 467 | return ide_pci_register_driver(&piix_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | } |
| 469 | |
Bartlomiej Zolnierkiewicz | da8c3e0 | 2008-07-24 22:53:24 +0200 | [diff] [blame] | 470 | static void __exit piix_ide_exit(void) |
| 471 | { |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 472 | pci_unregister_driver(&piix_pci_driver); |
Bartlomiej Zolnierkiewicz | da8c3e0 | 2008-07-24 22:53:24 +0200 | [diff] [blame] | 473 | } |
| 474 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 475 | module_init(piix_ide_init); |
Bartlomiej Zolnierkiewicz | da8c3e0 | 2008-07-24 22:53:24 +0200 | [diff] [blame] | 476 | module_exit(piix_ide_exit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | |
| 478 | MODULE_AUTHOR("Andre Hedrick, Andrzej Krzysztofowicz"); |
| 479 | MODULE_DESCRIPTION("PCI driver module for Intel PIIX IDE"); |
| 480 | MODULE_LICENSE("GPL"); |