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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [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 | * |
| 33 | * To-do list: |
| 34 | * - VT6421 PATA support |
| 35 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | */ |
| 37 | |
| 38 | #include <linux/kernel.h> |
| 39 | #include <linux/module.h> |
| 40 | #include <linux/pci.h> |
| 41 | #include <linux/init.h> |
| 42 | #include <linux/blkdev.h> |
| 43 | #include <linux/delay.h> |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 44 | #include <linux/device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #include <scsi/scsi_host.h> |
| 46 | #include <linux/libata.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
| 48 | #define DRV_NAME "sata_via" |
Jeff Garzik | cb48cab | 2007-02-26 06:04:24 -0500 | [diff] [blame] | 49 | #define DRV_VERSION "2.1" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
| 51 | enum board_ids_enum { |
| 52 | vt6420, |
| 53 | vt6421, |
| 54 | }; |
| 55 | |
| 56 | enum { |
| 57 | SATA_CHAN_ENAB = 0x40, /* SATA channel enable */ |
| 58 | SATA_INT_GATE = 0x41, /* SATA interrupt gating */ |
| 59 | SATA_NATIVE_MODE = 0x42, /* Native mode enable */ |
| 60 | SATA_PATA_SHARING = 0x49, /* PATA/SATA sharing func ctrl */ |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 61 | PATA_UDMA_TIMING = 0xB3, /* PATA timing for DMA/ cable detect */ |
| 62 | PATA_PIO_TIMING = 0xAB, /* PATA timing register */ |
Jeff Garzik | a84471f | 2007-02-26 05:51:33 -0500 | [diff] [blame] | 63 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | PORT0 = (1 << 1), |
| 65 | PORT1 = (1 << 0), |
| 66 | ALL_PORTS = PORT0 | PORT1, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 67 | PATA_PORT = 2, /* PATA is port 2 */ |
| 68 | N_PORTS = 3, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
| 70 | NATIVE_MODE_ALL = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4), |
| 71 | |
| 72 | SATA_EXT_PHY = (1 << 6), /* 0==use PATA, 1==ext phy */ |
| 73 | SATA_2DEV = (1 << 5), /* SATA is master/slave */ |
| 74 | }; |
| 75 | |
| 76 | static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); |
| 77 | static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg); |
| 78 | static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 79 | static void svia_noop_freeze(struct ata_port *ap); |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 80 | static void vt6420_error_handler(struct ata_port *ap); |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame^] | 81 | static int vt6421_pata_cable_detect(struct ata_port *ap); |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 82 | static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev); |
| 83 | static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev); |
| 84 | static int vt6421_port_start(struct ata_port *ap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 86 | static const struct pci_device_id svia_pci_tbl[] = { |
Luca Pedrielli | 96bc103 | 2007-01-16 12:55:04 +0900 | [diff] [blame] | 87 | { PCI_VDEVICE(VIA, 0x5337), vt6420 }, |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 88 | { PCI_VDEVICE(VIA, 0x0591), vt6420 }, |
| 89 | { PCI_VDEVICE(VIA, 0x3149), vt6420 }, |
| 90 | { PCI_VDEVICE(VIA, 0x3249), vt6421 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | |
| 92 | { } /* terminate list */ |
| 93 | }; |
| 94 | |
| 95 | static struct pci_driver svia_pci_driver = { |
| 96 | .name = DRV_NAME, |
| 97 | .id_table = svia_pci_tbl, |
| 98 | .probe = svia_init_one, |
| 99 | .remove = ata_pci_remove_one, |
| 100 | }; |
| 101 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 102 | static struct scsi_host_template svia_sht = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | .module = THIS_MODULE, |
| 104 | .name = DRV_NAME, |
| 105 | .ioctl = ata_scsi_ioctl, |
| 106 | .queuecommand = ata_scsi_queuecmd, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | .can_queue = ATA_DEF_QUEUE, |
| 108 | .this_id = ATA_SHT_THIS_ID, |
| 109 | .sg_tablesize = LIBATA_MAX_PRD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 111 | .emulated = ATA_SHT_EMULATED, |
| 112 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 113 | .proc_name = DRV_NAME, |
| 114 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 115 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | ccf68c3 | 2006-05-31 18:28:09 +0900 | [diff] [blame] | 116 | .slave_destroy = ata_scsi_slave_destroy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | .bios_param = ata_std_bios_param, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | }; |
| 119 | |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 120 | static const struct ata_port_operations vt6420_sata_ops = { |
| 121 | .port_disable = ata_port_disable, |
| 122 | |
| 123 | .tf_load = ata_tf_load, |
| 124 | .tf_read = ata_tf_read, |
| 125 | .check_status = ata_check_status, |
| 126 | .exec_command = ata_exec_command, |
| 127 | .dev_select = ata_std_dev_select, |
| 128 | |
| 129 | .bmdma_setup = ata_bmdma_setup, |
| 130 | .bmdma_start = ata_bmdma_start, |
| 131 | .bmdma_stop = ata_bmdma_stop, |
| 132 | .bmdma_status = ata_bmdma_status, |
| 133 | |
| 134 | .qc_prep = ata_qc_prep, |
| 135 | .qc_issue = ata_qc_issue_prot, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 136 | .data_xfer = ata_data_xfer, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 137 | |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 138 | .freeze = svia_noop_freeze, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 139 | .thaw = ata_bmdma_thaw, |
| 140 | .error_handler = vt6420_error_handler, |
| 141 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 142 | |
| 143 | .irq_handler = ata_interrupt, |
| 144 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 145 | .irq_on = ata_irq_on, |
| 146 | .irq_ack = ata_irq_ack, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 147 | |
| 148 | .port_start = ata_port_start, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 149 | }; |
| 150 | |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 151 | static const struct ata_port_operations vt6421_pata_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | .port_disable = ata_port_disable, |
Jeff Garzik | a84471f | 2007-02-26 05:51:33 -0500 | [diff] [blame] | 153 | |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 154 | .set_piomode = vt6421_set_pio_mode, |
| 155 | .set_dmamode = vt6421_set_dma_mode, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | |
| 157 | .tf_load = ata_tf_load, |
| 158 | .tf_read = ata_tf_read, |
| 159 | .check_status = ata_check_status, |
| 160 | .exec_command = ata_exec_command, |
| 161 | .dev_select = ata_std_dev_select, |
| 162 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | .bmdma_setup = ata_bmdma_setup, |
| 164 | .bmdma_start = ata_bmdma_start, |
| 165 | .bmdma_stop = ata_bmdma_stop, |
| 166 | .bmdma_status = ata_bmdma_status, |
| 167 | |
| 168 | .qc_prep = ata_qc_prep, |
| 169 | .qc_issue = ata_qc_issue_prot, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 170 | .data_xfer = ata_data_xfer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | |
Tejun Heo | 40ef1d8 | 2006-06-16 15:13:53 +0900 | [diff] [blame] | 172 | .freeze = ata_bmdma_freeze, |
| 173 | .thaw = ata_bmdma_thaw, |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame^] | 174 | .error_handler = ata_bmdma_error_handler, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 175 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame^] | 176 | .cable_detect = vt6421_pata_cable_detect, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 177 | |
| 178 | .irq_handler = ata_interrupt, |
| 179 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 180 | .irq_on = ata_irq_on, |
| 181 | .irq_ack = ata_irq_ack, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 182 | |
| 183 | .port_start = vt6421_port_start, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 184 | }; |
| 185 | |
| 186 | static const struct ata_port_operations vt6421_sata_ops = { |
| 187 | .port_disable = ata_port_disable, |
Jeff Garzik | a84471f | 2007-02-26 05:51:33 -0500 | [diff] [blame] | 188 | |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 189 | .tf_load = ata_tf_load, |
| 190 | .tf_read = ata_tf_read, |
| 191 | .check_status = ata_check_status, |
| 192 | .exec_command = ata_exec_command, |
| 193 | .dev_select = ata_std_dev_select, |
| 194 | |
| 195 | .bmdma_setup = ata_bmdma_setup, |
| 196 | .bmdma_start = ata_bmdma_start, |
| 197 | .bmdma_stop = ata_bmdma_stop, |
| 198 | .bmdma_status = ata_bmdma_status, |
| 199 | |
| 200 | .qc_prep = ata_qc_prep, |
| 201 | .qc_issue = ata_qc_issue_prot, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 202 | .data_xfer = ata_data_xfer, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 203 | |
| 204 | .freeze = ata_bmdma_freeze, |
| 205 | .thaw = ata_bmdma_thaw, |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame^] | 206 | .error_handler = ata_bmdma_error_handler, |
Tejun Heo | 40ef1d8 | 2006-06-16 15:13:53 +0900 | [diff] [blame] | 207 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame^] | 208 | .cable_detect = ata_cable_sata, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
| 210 | .irq_handler = ata_interrupt, |
| 211 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 212 | .irq_on = ata_irq_on, |
| 213 | .irq_ack = ata_irq_ack, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | |
| 215 | .scr_read = svia_scr_read, |
| 216 | .scr_write = svia_scr_write, |
| 217 | |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 218 | .port_start = vt6421_port_start, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | }; |
| 220 | |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 221 | static struct ata_port_info vt6420_port_info = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | .sht = &svia_sht, |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 223 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | .pio_mask = 0x1f, |
| 225 | .mwdma_mask = 0x07, |
| 226 | .udma_mask = 0x7f, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 227 | .port_ops = &vt6420_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | }; |
| 229 | |
| 230 | MODULE_AUTHOR("Jeff Garzik"); |
| 231 | MODULE_DESCRIPTION("SCSI low-level driver for VIA SATA controllers"); |
| 232 | MODULE_LICENSE("GPL"); |
| 233 | MODULE_DEVICE_TABLE(pci, svia_pci_tbl); |
| 234 | MODULE_VERSION(DRV_VERSION); |
| 235 | |
| 236 | static u32 svia_scr_read (struct ata_port *ap, unsigned int sc_reg) |
| 237 | { |
| 238 | if (sc_reg > SCR_CONTROL) |
| 239 | return 0xffffffffU; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 240 | return ioread32(ap->ioaddr.scr_addr + (4 * sc_reg)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | } |
| 242 | |
| 243 | static void svia_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val) |
| 244 | { |
| 245 | if (sc_reg > SCR_CONTROL) |
| 246 | return; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 247 | iowrite32(val, ap->ioaddr.scr_addr + (4 * sc_reg)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | } |
| 249 | |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 250 | static void svia_noop_freeze(struct ata_port *ap) |
| 251 | { |
| 252 | /* Some VIA controllers choke if ATA_NIEN is manipulated in |
| 253 | * certain way. Leave it alone and just clear pending IRQ. |
| 254 | */ |
| 255 | ata_chk_status(ap); |
Tejun Heo | d0259872 | 2007-01-26 14:57:31 +0900 | [diff] [blame] | 256 | ata_bmdma_irq_clear(ap); |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 257 | } |
| 258 | |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 259 | /** |
| 260 | * vt6420_prereset - prereset for vt6420 |
| 261 | * @ap: target ATA port |
| 262 | * |
| 263 | * SCR registers on vt6420 are pieces of shit and may hang the |
| 264 | * whole machine completely if accessed with the wrong timing. |
| 265 | * To avoid such catastrophe, vt6420 doesn't provide generic SCR |
| 266 | * access operations, but uses SStatus and SControl only during |
| 267 | * boot probing in controlled way. |
| 268 | * |
| 269 | * As the old (pre EH update) probing code is proven to work, we |
| 270 | * strictly follow the access pattern. |
| 271 | * |
| 272 | * LOCKING: |
| 273 | * Kernel thread context (may sleep) |
| 274 | * |
| 275 | * RETURNS: |
| 276 | * 0 on success, -errno otherwise. |
| 277 | */ |
| 278 | static int vt6420_prereset(struct ata_port *ap) |
| 279 | { |
| 280 | struct ata_eh_context *ehc = &ap->eh_context; |
| 281 | unsigned long timeout = jiffies + (HZ * 5); |
| 282 | u32 sstatus, scontrol; |
| 283 | int online; |
| 284 | |
| 285 | /* don't do any SCR stuff if we're not loading */ |
Jeff Garzik | 68ff6e8 | 2006-11-08 07:46:02 -0500 | [diff] [blame] | 286 | if (!(ap->pflags & ATA_PFLAG_LOADING)) |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 287 | goto skip_scr; |
| 288 | |
| 289 | /* Resume phy. This is the old resume sequence from |
| 290 | * __sata_phy_reset(). |
| 291 | */ |
| 292 | svia_scr_write(ap, SCR_CONTROL, 0x300); |
| 293 | svia_scr_read(ap, SCR_CONTROL); /* flush */ |
| 294 | |
| 295 | /* wait for phy to become ready, if necessary */ |
| 296 | do { |
| 297 | msleep(200); |
| 298 | if ((svia_scr_read(ap, SCR_STATUS) & 0xf) != 1) |
| 299 | break; |
| 300 | } while (time_before(jiffies, timeout)); |
| 301 | |
| 302 | /* open code sata_print_link_status() */ |
| 303 | sstatus = svia_scr_read(ap, SCR_STATUS); |
| 304 | scontrol = svia_scr_read(ap, SCR_CONTROL); |
| 305 | |
| 306 | online = (sstatus & 0xf) == 0x3; |
| 307 | |
| 308 | ata_port_printk(ap, KERN_INFO, |
| 309 | "SATA link %s 1.5 Gbps (SStatus %X SControl %X)\n", |
| 310 | online ? "up" : "down", sstatus, scontrol); |
| 311 | |
| 312 | /* SStatus is read one more time */ |
| 313 | svia_scr_read(ap, SCR_STATUS); |
| 314 | |
| 315 | if (!online) { |
| 316 | /* tell EH to bail */ |
| 317 | ehc->i.action &= ~ATA_EH_RESET_MASK; |
| 318 | return 0; |
| 319 | } |
| 320 | |
| 321 | skip_scr: |
| 322 | /* wait for !BSY */ |
| 323 | ata_busy_sleep(ap, ATA_TMOUT_BOOT_QUICK, ATA_TMOUT_BOOT); |
| 324 | |
| 325 | return 0; |
| 326 | } |
| 327 | |
| 328 | static void vt6420_error_handler(struct ata_port *ap) |
| 329 | { |
| 330 | return ata_bmdma_drive_eh(ap, vt6420_prereset, ata_std_softreset, |
| 331 | NULL, ata_std_postreset); |
| 332 | } |
| 333 | |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame^] | 334 | static int vt6421_pata_cable_detect(struct ata_port *ap) |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 335 | { |
| 336 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 337 | u8 tmp; |
| 338 | |
| 339 | pci_read_config_byte(pdev, PATA_UDMA_TIMING, &tmp); |
| 340 | if (tmp & 0x10) |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame^] | 341 | return ATA_CBL_PATA40; |
| 342 | return ATA_CBL_PATA80; |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 343 | } |
| 344 | |
| 345 | static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev) |
| 346 | { |
| 347 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 348 | static const u8 pio_bits[] = { 0xA8, 0x65, 0x65, 0x31, 0x20 }; |
| 349 | pci_write_config_byte(pdev, PATA_PIO_TIMING, pio_bits[adev->pio_mode - XFER_PIO_0]); |
| 350 | } |
| 351 | |
| 352 | static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev) |
| 353 | { |
| 354 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 355 | static const u8 udma_bits[] = { 0xEE, 0xE8, 0xE6, 0xE4, 0xE2, 0xE1, 0xE0, 0xE0 }; |
| 356 | pci_write_config_byte(pdev, PATA_UDMA_TIMING, udma_bits[adev->pio_mode - XFER_UDMA_0]); |
| 357 | } |
| 358 | |
| 359 | static int vt6421_port_start(struct ata_port *ap) |
| 360 | { |
| 361 | if (ap->port_no == PATA_PORT) { |
| 362 | ap->ops = &vt6421_pata_ops; |
| 363 | ap->mwdma_mask = 0; |
| 364 | ap->flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_LEGACY | ATA_FLAG_SRST; |
| 365 | } |
| 366 | return ata_port_start(ap); |
| 367 | } |
| 368 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | static const unsigned int svia_bar_sizes[] = { |
| 370 | 8, 4, 8, 4, 16, 256 |
| 371 | }; |
| 372 | |
| 373 | static const unsigned int vt6421_bar_sizes[] = { |
| 374 | 16, 16, 16, 16, 32, 128 |
| 375 | }; |
| 376 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 377 | static void __iomem * svia_scr_addr(void __iomem *addr, unsigned int port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | { |
| 379 | return addr + (port * 128); |
| 380 | } |
| 381 | |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 382 | static void __iomem * vt6421_scr_addr(void __iomem *addr, unsigned int port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | { |
| 384 | return addr + (port * 64); |
| 385 | } |
| 386 | |
| 387 | static void vt6421_init_addrs(struct ata_probe_ent *probe_ent, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 388 | void __iomem * const *iomap, unsigned int port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | { |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 390 | void __iomem *reg_addr = iomap[port]; |
| 391 | void __iomem *bmdma_addr = iomap[4] + (port * 8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 392 | |
| 393 | probe_ent->port[port].cmd_addr = reg_addr; |
| 394 | probe_ent->port[port].altstatus_addr = |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 395 | probe_ent->port[port].ctl_addr = (void __iomem *) |
| 396 | ((unsigned long)(reg_addr + 8) | ATA_PCI_CTL_OFS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | probe_ent->port[port].bmdma_addr = bmdma_addr; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 398 | probe_ent->port[port].scr_addr = vt6421_scr_addr(iomap[5], port); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | |
| 400 | ata_std_ports(&probe_ent->port[port]); |
| 401 | } |
| 402 | |
| 403 | static struct ata_probe_ent *vt6420_init_probe_ent(struct pci_dev *pdev) |
| 404 | { |
| 405 | struct ata_probe_ent *probe_ent; |
Jeff Garzik | 29da9f6 | 2006-09-25 21:56:33 -0400 | [diff] [blame] | 406 | struct ata_port_info *ppi[2]; |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 407 | void __iomem *bar5; |
Jeff Garzik | f20b16f | 2006-12-11 11:14:06 -0500 | [diff] [blame] | 408 | |
Jeff Garzik | 29da9f6 | 2006-09-25 21:56:33 -0400 | [diff] [blame] | 409 | ppi[0] = ppi[1] = &vt6420_port_info; |
| 410 | probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | if (!probe_ent) |
| 412 | return NULL; |
| 413 | |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 414 | bar5 = pcim_iomap(pdev, 5, 0); |
| 415 | if (!bar5) { |
| 416 | dev_printk(KERN_ERR, &pdev->dev, "failed to iomap PCI BAR 5\n"); |
| 417 | return NULL; |
| 418 | } |
| 419 | |
| 420 | probe_ent->port[0].scr_addr = svia_scr_addr(bar5, 0); |
| 421 | probe_ent->port[1].scr_addr = svia_scr_addr(bar5, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | |
| 423 | return probe_ent; |
| 424 | } |
| 425 | |
| 426 | static struct ata_probe_ent *vt6421_init_probe_ent(struct pci_dev *pdev) |
| 427 | { |
| 428 | struct ata_probe_ent *probe_ent; |
| 429 | unsigned int i; |
| 430 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 431 | probe_ent = devm_kzalloc(&pdev->dev, sizeof(*probe_ent), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | if (!probe_ent) |
| 433 | return NULL; |
| 434 | |
| 435 | memset(probe_ent, 0, sizeof(*probe_ent)); |
| 436 | probe_ent->dev = pci_dev_to_dev(pdev); |
| 437 | INIT_LIST_HEAD(&probe_ent->node); |
| 438 | |
| 439 | probe_ent->sht = &svia_sht; |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 440 | probe_ent->port_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY; |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 441 | probe_ent->port_ops = &vt6421_sata_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | probe_ent->n_ports = N_PORTS; |
| 443 | probe_ent->irq = pdev->irq; |
Thomas Gleixner | 1d6f359 | 2006-07-01 19:29:42 -0700 | [diff] [blame] | 444 | probe_ent->irq_flags = IRQF_SHARED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | probe_ent->pio_mask = 0x1f; |
| 446 | probe_ent->mwdma_mask = 0x07; |
| 447 | probe_ent->udma_mask = 0x7f; |
| 448 | |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 449 | for (i = 0; i < 6; i++) |
| 450 | if (!pcim_iomap(pdev, i, 0)) { |
| 451 | dev_printk(KERN_ERR, &pdev->dev, |
| 452 | "failed to iomap PCI BAR %d\n", i); |
| 453 | return NULL; |
| 454 | } |
| 455 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | for (i = 0; i < N_PORTS; i++) |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 457 | vt6421_init_addrs(probe_ent, pcim_iomap_table(pdev), i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | |
| 459 | return probe_ent; |
| 460 | } |
| 461 | |
| 462 | static void svia_configure(struct pci_dev *pdev) |
| 463 | { |
| 464 | u8 tmp8; |
| 465 | |
| 466 | pci_read_config_byte(pdev, PCI_INTERRUPT_LINE, &tmp8); |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 467 | 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] | 468 | (int) (tmp8 & 0xf0) == 0xf0 ? 0 : tmp8 & 0x0f); |
| 469 | |
| 470 | /* make sure SATA channels are enabled */ |
| 471 | pci_read_config_byte(pdev, SATA_CHAN_ENAB, &tmp8); |
| 472 | if ((tmp8 & ALL_PORTS) != ALL_PORTS) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 473 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 474 | "enabling SATA channels (0x%x)\n", |
| 475 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | tmp8 |= ALL_PORTS; |
| 477 | pci_write_config_byte(pdev, SATA_CHAN_ENAB, tmp8); |
| 478 | } |
| 479 | |
| 480 | /* make sure interrupts for each channel sent to us */ |
| 481 | pci_read_config_byte(pdev, SATA_INT_GATE, &tmp8); |
| 482 | if ((tmp8 & ALL_PORTS) != ALL_PORTS) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 483 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 484 | "enabling SATA channel interrupts (0x%x)\n", |
| 485 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | tmp8 |= ALL_PORTS; |
| 487 | pci_write_config_byte(pdev, SATA_INT_GATE, tmp8); |
| 488 | } |
| 489 | |
| 490 | /* make sure native mode is enabled */ |
| 491 | pci_read_config_byte(pdev, SATA_NATIVE_MODE, &tmp8); |
| 492 | if ((tmp8 & NATIVE_MODE_ALL) != NATIVE_MODE_ALL) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 493 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 494 | "enabling SATA channel native mode (0x%x)\n", |
| 495 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | tmp8 |= NATIVE_MODE_ALL; |
| 497 | pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8); |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
| 502 | { |
| 503 | static int printed_version; |
| 504 | unsigned int i; |
| 505 | int rc; |
| 506 | struct ata_probe_ent *probe_ent; |
| 507 | int board_id = (int) ent->driver_data; |
| 508 | const int *bar_sizes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | u8 tmp8; |
| 510 | |
| 511 | if (!printed_version++) |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 512 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 513 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 514 | rc = pcim_enable_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | if (rc) |
| 516 | return rc; |
| 517 | |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 518 | rc = pci_request_regions(pdev, DRV_NAME); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | if (rc) { |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 520 | pcim_pin_device(pdev); |
| 521 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | } |
| 523 | |
| 524 | if (board_id == vt6420) { |
| 525 | pci_read_config_byte(pdev, SATA_PATA_SHARING, &tmp8); |
| 526 | if (tmp8 & SATA_2DEV) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 527 | dev_printk(KERN_ERR, &pdev->dev, |
| 528 | "SATA master/slave not supported (0x%x)\n", |
| 529 | (int) tmp8); |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 530 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | } |
| 532 | |
| 533 | bar_sizes = &svia_bar_sizes[0]; |
| 534 | } else { |
| 535 | bar_sizes = &vt6421_bar_sizes[0]; |
| 536 | } |
| 537 | |
| 538 | for (i = 0; i < ARRAY_SIZE(svia_bar_sizes); i++) |
| 539 | if ((pci_resource_start(pdev, i) == 0) || |
| 540 | (pci_resource_len(pdev, i) < bar_sizes[i])) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 541 | dev_printk(KERN_ERR, &pdev->dev, |
Greg Kroah-Hartman | e29419f | 2006-06-12 15:20:16 -0700 | [diff] [blame] | 542 | "invalid PCI BAR %u (sz 0x%llx, val 0x%llx)\n", |
| 543 | i, |
| 544 | (unsigned long long)pci_resource_start(pdev, i), |
| 545 | (unsigned long long)pci_resource_len(pdev, i)); |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 546 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | } |
| 548 | |
| 549 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 550 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 551 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 553 | if (rc) |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 554 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | |
| 556 | if (board_id == vt6420) |
| 557 | probe_ent = vt6420_init_probe_ent(pdev); |
| 558 | else |
| 559 | probe_ent = vt6421_init_probe_ent(pdev); |
Jeff Garzik | 8a60a07 | 2005-07-31 13:13:24 -0400 | [diff] [blame] | 560 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 561 | if (!probe_ent) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 562 | dev_printk(KERN_ERR, &pdev->dev, "out of memory\n"); |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 563 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | } |
| 565 | |
| 566 | svia_configure(pdev); |
| 567 | |
| 568 | pci_set_master(pdev); |
| 569 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 570 | if (!ata_device_add(probe_ent)) |
| 571 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 573 | devm_kfree(&pdev->dev, probe_ent); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | } |
| 576 | |
| 577 | static int __init svia_init(void) |
| 578 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 579 | return pci_register_driver(&svia_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | } |
| 581 | |
| 582 | static void __exit svia_exit(void) |
| 583 | { |
| 584 | pci_unregister_driver(&svia_pci_driver); |
| 585 | } |
| 586 | |
| 587 | module_init(svia_init); |
| 588 | module_exit(svia_exit); |