Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 2 | * sata_via.c - VIA Serial ATA controllers |
| 3 | * |
| 4 | * Maintained by: Jeff Garzik <jgarzik@pobox.com> |
| 5 | * Please ALWAYS copy linux-ide@vger.kernel.org |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 6 | * on emails. |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 7 | * |
| 8 | * Copyright 2003-2004 Red Hat, Inc. All rights reserved. |
| 9 | * Copyright 2003-2004 Jeff Garzik |
| 10 | * |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU General Public License as published by |
| 14 | * the Free Software Foundation; either version 2, or (at your option) |
| 15 | * any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; see the file COPYING. If not, write to |
| 24 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
| 25 | * |
| 26 | * |
| 27 | * libata documentation is available via 'make {ps|pdf}docs', |
| 28 | * as Documentation/DocBook/libata.* |
| 29 | * |
| 30 | * Hardware documentation available under NDA. |
| 31 | * |
| 32 | * |
Jeff Garzik | af36d7f | 2005-08-28 20:18:39 -0400 | [diff] [blame] | 33 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | */ |
| 35 | |
| 36 | #include <linux/kernel.h> |
| 37 | #include <linux/module.h> |
| 38 | #include <linux/pci.h> |
| 39 | #include <linux/init.h> |
| 40 | #include <linux/blkdev.h> |
| 41 | #include <linux/delay.h> |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 42 | #include <linux/device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #include <scsi/scsi_host.h> |
| 44 | #include <linux/libata.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
| 46 | #define DRV_NAME "sata_via" |
Jeff Garzik | 2a3103c | 2007-08-31 04:54:06 -0400 | [diff] [blame] | 47 | #define DRV_VERSION "2.3" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
| 49 | enum board_ids_enum { |
| 50 | vt6420, |
| 51 | vt6421, |
| 52 | }; |
| 53 | |
| 54 | enum { |
| 55 | SATA_CHAN_ENAB = 0x40, /* SATA channel enable */ |
| 56 | SATA_INT_GATE = 0x41, /* SATA interrupt gating */ |
| 57 | SATA_NATIVE_MODE = 0x42, /* Native mode enable */ |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 58 | PATA_UDMA_TIMING = 0xB3, /* PATA timing for DMA/ cable detect */ |
| 59 | PATA_PIO_TIMING = 0xAB, /* PATA timing register */ |
Jeff Garzik | a84471f | 2007-02-26 05:51:33 -0500 | [diff] [blame] | 60 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | PORT0 = (1 << 1), |
| 62 | PORT1 = (1 << 0), |
| 63 | ALL_PORTS = PORT0 | PORT1, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | |
| 65 | NATIVE_MODE_ALL = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4), |
| 66 | |
| 67 | SATA_EXT_PHY = (1 << 6), /* 0==use PATA, 1==ext phy */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | }; |
| 69 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 70 | static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 71 | static int svia_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val); |
| 72 | static int svia_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val); |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame^] | 73 | static void svia_tf_load(struct ata_port *ap, const struct ata_taskfile *tf); |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 74 | static void svia_noop_freeze(struct ata_port *ap); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 75 | static int vt6420_prereset(struct ata_link *link, unsigned long deadline); |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 76 | static int vt6421_pata_cable_detect(struct ata_port *ap); |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 77 | static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev); |
| 78 | static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 80 | static const struct pci_device_id svia_pci_tbl[] = { |
Luca Pedrielli | 96bc103 | 2007-01-16 12:55:04 +0900 | [diff] [blame] | 81 | { PCI_VDEVICE(VIA, 0x5337), vt6420 }, |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 82 | { PCI_VDEVICE(VIA, 0x0591), vt6420 }, |
| 83 | { PCI_VDEVICE(VIA, 0x3149), vt6420 }, |
| 84 | { PCI_VDEVICE(VIA, 0x3249), vt6421 }, |
Jeff Garzik | 52df0ee | 2007-05-25 05:02:06 -0400 | [diff] [blame] | 85 | { PCI_VDEVICE(VIA, 0x5287), vt6420 }, |
| 86 | { PCI_VDEVICE(VIA, 0x5372), vt6420 }, |
| 87 | { PCI_VDEVICE(VIA, 0x7372), vt6420 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | |
| 89 | { } /* terminate list */ |
| 90 | }; |
| 91 | |
| 92 | static struct pci_driver svia_pci_driver = { |
| 93 | .name = DRV_NAME, |
| 94 | .id_table = svia_pci_tbl, |
| 95 | .probe = svia_init_one, |
Tejun Heo | e1e143c | 2007-05-04 15:30:34 +0200 | [diff] [blame] | 96 | #ifdef CONFIG_PM |
| 97 | .suspend = ata_pci_device_suspend, |
| 98 | .resume = ata_pci_device_resume, |
| 99 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | .remove = ata_pci_remove_one, |
| 101 | }; |
| 102 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 103 | static struct scsi_host_template svia_sht = { |
Tejun Heo | 68d1d07 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 104 | ATA_BMDMA_SHT(DRV_NAME), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | }; |
| 106 | |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame^] | 107 | static struct ata_port_operations svia_base_ops = { |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 108 | .inherits = &ata_bmdma_port_ops, |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame^] | 109 | .sff_tf_load = svia_tf_load, |
| 110 | }; |
| 111 | |
| 112 | static struct ata_port_operations vt6420_sata_ops = { |
| 113 | .inherits = &svia_base_ops, |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 114 | .freeze = svia_noop_freeze, |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 115 | .prereset = vt6420_prereset, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 116 | }; |
| 117 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 118 | static struct ata_port_operations vt6421_pata_ops = { |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame^] | 119 | .inherits = &svia_base_ops, |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 120 | .cable_detect = vt6421_pata_cable_detect, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 121 | .set_piomode = vt6421_set_pio_mode, |
| 122 | .set_dmamode = vt6421_set_dma_mode, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 123 | }; |
| 124 | |
Tejun Heo | 029cfd6 | 2008-03-25 12:22:49 +0900 | [diff] [blame] | 125 | static struct ata_port_operations vt6421_sata_ops = { |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame^] | 126 | .inherits = &svia_base_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | .scr_read = svia_scr_read, |
| 128 | .scr_write = svia_scr_write, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | }; |
| 130 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 131 | static const struct ata_port_info vt6420_port_info = { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 132 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | .pio_mask = 0x1f, |
| 134 | .mwdma_mask = 0x07, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 135 | .udma_mask = ATA_UDMA6, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 136 | .port_ops = &vt6420_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | }; |
| 138 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 139 | static struct ata_port_info vt6421_sport_info = { |
| 140 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, |
| 141 | .pio_mask = 0x1f, |
| 142 | .mwdma_mask = 0x07, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 143 | .udma_mask = ATA_UDMA6, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 144 | .port_ops = &vt6421_sata_ops, |
| 145 | }; |
| 146 | |
| 147 | static struct ata_port_info vt6421_pport_info = { |
| 148 | .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_LEGACY, |
| 149 | .pio_mask = 0x1f, |
| 150 | .mwdma_mask = 0, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 151 | .udma_mask = ATA_UDMA6, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 152 | .port_ops = &vt6421_pata_ops, |
| 153 | }; |
| 154 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | MODULE_AUTHOR("Jeff Garzik"); |
| 156 | MODULE_DESCRIPTION("SCSI low-level driver for VIA SATA controllers"); |
| 157 | MODULE_LICENSE("GPL"); |
| 158 | MODULE_DEVICE_TABLE(pci, svia_pci_tbl); |
| 159 | MODULE_VERSION(DRV_VERSION); |
| 160 | |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 161 | static int svia_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | { |
| 163 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 164 | return -EINVAL; |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 165 | *val = ioread32(link->ap->ioaddr.scr_addr + (4 * sc_reg)); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 166 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | } |
| 168 | |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 169 | static int svia_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | { |
| 171 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 172 | return -EINVAL; |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 173 | iowrite32(val, link->ap->ioaddr.scr_addr + (4 * sc_reg)); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 174 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | } |
| 176 | |
Tejun Heo | b78152e | 2008-10-22 00:45:57 +0900 | [diff] [blame^] | 177 | /** |
| 178 | * svia_tf_load - send taskfile registers to host controller |
| 179 | * @ap: Port to which output is sent |
| 180 | * @tf: ATA taskfile register set |
| 181 | * |
| 182 | * Outputs ATA taskfile to standard ATA host controller. |
| 183 | * |
| 184 | * This is to fix the internal bug of via chipsets, which will |
| 185 | * reset the device register after changing the IEN bit on ctl |
| 186 | * register. |
| 187 | */ |
| 188 | static void svia_tf_load(struct ata_port *ap, const struct ata_taskfile *tf) |
| 189 | { |
| 190 | struct ata_taskfile ttf; |
| 191 | |
| 192 | if (tf->ctl != ap->last_ctl) { |
| 193 | ttf = *tf; |
| 194 | ttf.flags |= ATA_TFLAG_DEVICE; |
| 195 | tf = &ttf; |
| 196 | } |
| 197 | ata_sff_tf_load(ap, tf); |
| 198 | } |
| 199 | |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 200 | static void svia_noop_freeze(struct ata_port *ap) |
| 201 | { |
| 202 | /* Some VIA controllers choke if ATA_NIEN is manipulated in |
| 203 | * certain way. Leave it alone and just clear pending IRQ. |
| 204 | */ |
Tejun Heo | 5682ed3 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 205 | ap->ops->sff_check_status(ap); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 206 | ata_sff_irq_clear(ap); |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 207 | } |
| 208 | |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 209 | /** |
| 210 | * vt6420_prereset - prereset for vt6420 |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 211 | * @link: target ATA link |
Tejun Heo | d4b2bab | 2007-02-02 16:50:52 +0900 | [diff] [blame] | 212 | * @deadline: deadline jiffies for the operation |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 213 | * |
| 214 | * SCR registers on vt6420 are pieces of shit and may hang the |
| 215 | * whole machine completely if accessed with the wrong timing. |
| 216 | * To avoid such catastrophe, vt6420 doesn't provide generic SCR |
| 217 | * access operations, but uses SStatus and SControl only during |
| 218 | * boot probing in controlled way. |
| 219 | * |
| 220 | * As the old (pre EH update) probing code is proven to work, we |
| 221 | * strictly follow the access pattern. |
| 222 | * |
| 223 | * LOCKING: |
| 224 | * Kernel thread context (may sleep) |
| 225 | * |
| 226 | * RETURNS: |
| 227 | * 0 on success, -errno otherwise. |
| 228 | */ |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 229 | static int vt6420_prereset(struct ata_link *link, unsigned long deadline) |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 230 | { |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 231 | struct ata_port *ap = link->ap; |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 232 | struct ata_eh_context *ehc = &ap->link.eh_context; |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 233 | unsigned long timeout = jiffies + (HZ * 5); |
| 234 | u32 sstatus, scontrol; |
| 235 | int online; |
| 236 | |
| 237 | /* don't do any SCR stuff if we're not loading */ |
Jeff Garzik | 68ff6e8 | 2006-11-08 07:46:02 -0500 | [diff] [blame] | 238 | if (!(ap->pflags & ATA_PFLAG_LOADING)) |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 239 | goto skip_scr; |
| 240 | |
Jeff Garzik | a09060f | 2007-05-28 08:17:06 -0400 | [diff] [blame] | 241 | /* Resume phy. This is the old SATA resume sequence */ |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 242 | svia_scr_write(link, SCR_CONTROL, 0x300); |
| 243 | svia_scr_read(link, SCR_CONTROL, &scontrol); /* flush */ |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 244 | |
| 245 | /* wait for phy to become ready, if necessary */ |
| 246 | do { |
| 247 | msleep(200); |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 248 | svia_scr_read(link, SCR_STATUS, &sstatus); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 249 | if ((sstatus & 0xf) != 1) |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 250 | break; |
| 251 | } while (time_before(jiffies, timeout)); |
| 252 | |
| 253 | /* open code sata_print_link_status() */ |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 254 | svia_scr_read(link, SCR_STATUS, &sstatus); |
| 255 | svia_scr_read(link, SCR_CONTROL, &scontrol); |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 256 | |
| 257 | online = (sstatus & 0xf) == 0x3; |
| 258 | |
| 259 | ata_port_printk(ap, KERN_INFO, |
| 260 | "SATA link %s 1.5 Gbps (SStatus %X SControl %X)\n", |
| 261 | online ? "up" : "down", sstatus, scontrol); |
| 262 | |
| 263 | /* SStatus is read one more time */ |
Tejun Heo | 82ef04f | 2008-07-31 17:02:40 +0900 | [diff] [blame] | 264 | svia_scr_read(link, SCR_STATUS, &sstatus); |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 265 | |
| 266 | if (!online) { |
| 267 | /* tell EH to bail */ |
Tejun Heo | cf48062 | 2008-01-24 00:05:14 +0900 | [diff] [blame] | 268 | ehc->i.action &= ~ATA_EH_RESET; |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 269 | return 0; |
| 270 | } |
| 271 | |
| 272 | skip_scr: |
| 273 | /* wait for !BSY */ |
Tejun Heo | 705e76b | 2008-04-07 22:47:19 +0900 | [diff] [blame] | 274 | ata_sff_wait_ready(link, deadline); |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 275 | |
| 276 | return 0; |
| 277 | } |
| 278 | |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 279 | static int vt6421_pata_cable_detect(struct ata_port *ap) |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 280 | { |
| 281 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 282 | u8 tmp; |
| 283 | |
| 284 | pci_read_config_byte(pdev, PATA_UDMA_TIMING, &tmp); |
| 285 | if (tmp & 0x10) |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 286 | return ATA_CBL_PATA40; |
| 287 | return ATA_CBL_PATA80; |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 288 | } |
| 289 | |
| 290 | static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev) |
| 291 | { |
| 292 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 293 | static const u8 pio_bits[] = { 0xA8, 0x65, 0x65, 0x31, 0x20 }; |
| 294 | pci_write_config_byte(pdev, PATA_PIO_TIMING, pio_bits[adev->pio_mode - XFER_PIO_0]); |
| 295 | } |
| 296 | |
| 297 | static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev) |
| 298 | { |
| 299 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 300 | static const u8 udma_bits[] = { 0xEE, 0xE8, 0xE6, 0xE4, 0xE2, 0xE1, 0xE0, 0xE0 }; |
Ondrej Zary | b4154d4 | 2007-09-01 00:55:21 +0200 | [diff] [blame] | 301 | pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->dma_mode - XFER_UDMA_0]); |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 302 | } |
| 303 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | static const unsigned int svia_bar_sizes[] = { |
| 305 | 8, 4, 8, 4, 16, 256 |
| 306 | }; |
| 307 | |
| 308 | static const unsigned int vt6421_bar_sizes[] = { |
| 309 | 16, 16, 16, 16, 32, 128 |
| 310 | }; |
| 311 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 312 | static void __iomem *svia_scr_addr(void __iomem *addr, unsigned int port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | { |
| 314 | return addr + (port * 128); |
| 315 | } |
| 316 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 317 | static void __iomem *vt6421_scr_addr(void __iomem *addr, unsigned int port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | { |
| 319 | return addr + (port * 64); |
| 320 | } |
| 321 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 322 | static void vt6421_init_addrs(struct ata_port *ap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 324 | void __iomem * const * iomap = ap->host->iomap; |
| 325 | void __iomem *reg_addr = iomap[ap->port_no]; |
| 326 | void __iomem *bmdma_addr = iomap[4] + (ap->port_no * 8); |
| 327 | struct ata_ioports *ioaddr = &ap->ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 329 | ioaddr->cmd_addr = reg_addr; |
| 330 | ioaddr->altstatus_addr = |
| 331 | ioaddr->ctl_addr = (void __iomem *) |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 332 | ((unsigned long)(reg_addr + 8) | ATA_PCI_CTL_OFS); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 333 | ioaddr->bmdma_addr = bmdma_addr; |
| 334 | ioaddr->scr_addr = vt6421_scr_addr(iomap[5], ap->port_no); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 336 | ata_sff_std_ports(ioaddr); |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame] | 337 | |
| 338 | ata_port_pbar_desc(ap, ap->port_no, -1, "port"); |
| 339 | ata_port_pbar_desc(ap, 4, ap->port_no * 8, "bmdma"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | } |
| 341 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 342 | static int vt6420_prepare_host(struct pci_dev *pdev, struct ata_host **r_host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 344 | const struct ata_port_info *ppi[] = { &vt6420_port_info, NULL }; |
| 345 | struct ata_host *host; |
| 346 | int rc; |
Jeff Garzik | f20b16f | 2006-12-11 11:14:06 -0500 | [diff] [blame] | 347 | |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 348 | rc = ata_pci_sff_prepare_host(pdev, ppi, &host); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 349 | if (rc) |
| 350 | return rc; |
| 351 | *r_host = host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 353 | rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME); |
| 354 | if (rc) { |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 355 | dev_printk(KERN_ERR, &pdev->dev, "failed to iomap PCI BAR 5\n"); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 356 | return rc; |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 357 | } |
| 358 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 359 | host->ports[0]->ioaddr.scr_addr = svia_scr_addr(host->iomap[5], 0); |
| 360 | host->ports[1]->ioaddr.scr_addr = svia_scr_addr(host->iomap[5], 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 362 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | } |
| 364 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 365 | static int vt6421_prepare_host(struct pci_dev *pdev, struct ata_host **r_host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 367 | const struct ata_port_info *ppi[] = |
| 368 | { &vt6421_sport_info, &vt6421_sport_info, &vt6421_pport_info }; |
| 369 | struct ata_host *host; |
| 370 | int i, rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 372 | *r_host = host = ata_host_alloc_pinfo(&pdev->dev, ppi, ARRAY_SIZE(ppi)); |
| 373 | if (!host) { |
| 374 | dev_printk(KERN_ERR, &pdev->dev, "failed to allocate host\n"); |
| 375 | return -ENOMEM; |
| 376 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | |
Tejun Heo | 8fd7d1b | 2007-05-17 13:37:12 +0200 | [diff] [blame] | 378 | rc = pcim_iomap_regions(pdev, 0x3f, DRV_NAME); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 379 | if (rc) { |
| 380 | dev_printk(KERN_ERR, &pdev->dev, "failed to request/iomap " |
| 381 | "PCI BARs (errno=%d)\n", rc); |
| 382 | return rc; |
| 383 | } |
| 384 | host->iomap = pcim_iomap_table(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 386 | for (i = 0; i < host->n_ports; i++) |
| 387 | vt6421_init_addrs(host->ports[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 389 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 390 | if (rc) |
| 391 | return rc; |
| 392 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 393 | if (rc) |
| 394 | return rc; |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 395 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 396 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | } |
| 398 | |
| 399 | static void svia_configure(struct pci_dev *pdev) |
| 400 | { |
| 401 | u8 tmp8; |
| 402 | |
| 403 | pci_read_config_byte(pdev, PCI_INTERRUPT_LINE, &tmp8); |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 404 | dev_printk(KERN_INFO, &pdev->dev, "routed to hard irq line %d\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | (int) (tmp8 & 0xf0) == 0xf0 ? 0 : tmp8 & 0x0f); |
| 406 | |
| 407 | /* make sure SATA channels are enabled */ |
| 408 | pci_read_config_byte(pdev, SATA_CHAN_ENAB, &tmp8); |
| 409 | if ((tmp8 & ALL_PORTS) != ALL_PORTS) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 410 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 411 | "enabling SATA channels (0x%x)\n", |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 412 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | tmp8 |= ALL_PORTS; |
| 414 | pci_write_config_byte(pdev, SATA_CHAN_ENAB, tmp8); |
| 415 | } |
| 416 | |
| 417 | /* make sure interrupts for each channel sent to us */ |
| 418 | pci_read_config_byte(pdev, SATA_INT_GATE, &tmp8); |
| 419 | if ((tmp8 & ALL_PORTS) != ALL_PORTS) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 420 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 421 | "enabling SATA channel interrupts (0x%x)\n", |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 422 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | tmp8 |= ALL_PORTS; |
| 424 | pci_write_config_byte(pdev, SATA_INT_GATE, tmp8); |
| 425 | } |
| 426 | |
| 427 | /* make sure native mode is enabled */ |
| 428 | pci_read_config_byte(pdev, SATA_NATIVE_MODE, &tmp8); |
| 429 | if ((tmp8 & NATIVE_MODE_ALL) != NATIVE_MODE_ALL) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 430 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 431 | "enabling SATA channel native mode (0x%x)\n", |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 432 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | tmp8 |= NATIVE_MODE_ALL; |
| 434 | pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8); |
| 435 | } |
| 436 | } |
| 437 | |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 438 | static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 439 | { |
| 440 | static int printed_version; |
| 441 | unsigned int i; |
| 442 | int rc; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 443 | struct ata_host *host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | int board_id = (int) ent->driver_data; |
Al Viro | b4482a4 | 2007-10-14 19:35:40 +0100 | [diff] [blame] | 445 | const unsigned *bar_sizes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | |
| 447 | if (!printed_version++) |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 448 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 450 | rc = pcim_enable_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | if (rc) |
| 452 | return rc; |
| 453 | |
Tejun Heo | b6d6c74 | 2007-09-21 17:55:44 +0900 | [diff] [blame] | 454 | if (board_id == vt6420) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | bar_sizes = &svia_bar_sizes[0]; |
Tejun Heo | b6d6c74 | 2007-09-21 17:55:44 +0900 | [diff] [blame] | 456 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | bar_sizes = &vt6421_bar_sizes[0]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | |
| 459 | for (i = 0; i < ARRAY_SIZE(svia_bar_sizes); i++) |
| 460 | if ((pci_resource_start(pdev, i) == 0) || |
| 461 | (pci_resource_len(pdev, i) < bar_sizes[i])) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 462 | dev_printk(KERN_ERR, &pdev->dev, |
Greg Kroah-Hartman | e29419f | 2006-06-12 15:20:16 -0700 | [diff] [blame] | 463 | "invalid PCI BAR %u (sz 0x%llx, val 0x%llx)\n", |
| 464 | i, |
Jeff Garzik | 5796d1c | 2007-10-26 00:03:37 -0400 | [diff] [blame] | 465 | (unsigned long long)pci_resource_start(pdev, i), |
| 466 | (unsigned long long)pci_resource_len(pdev, i)); |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 467 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 468 | } |
| 469 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | if (board_id == vt6420) |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 471 | rc = vt6420_prepare_host(pdev, &host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 472 | else |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 473 | rc = vt6421_prepare_host(pdev, &host); |
| 474 | if (rc) |
| 475 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | |
| 477 | svia_configure(pdev); |
| 478 | |
| 479 | pci_set_master(pdev); |
Tejun Heo | 9363c38 | 2008-04-07 22:47:16 +0900 | [diff] [blame] | 480 | return ata_host_activate(host, pdev->irq, ata_sff_interrupt, |
| 481 | IRQF_SHARED, &svia_sht); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | } |
| 483 | |
| 484 | static int __init svia_init(void) |
| 485 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 486 | return pci_register_driver(&svia_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | } |
| 488 | |
| 489 | static void __exit svia_exit(void) |
| 490 | { |
| 491 | pci_unregister_driver(&svia_pci_driver); |
| 492 | } |
| 493 | |
| 494 | module_init(svia_init); |
| 495 | module_exit(svia_exit); |