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 | 2a3103c | 2007-08-31 04:54:06 -0400 | [diff] [blame] | 49 | #define DRV_VERSION "2.3" |
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, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
| 68 | NATIVE_MODE_ALL = (1 << 7) | (1 << 6) | (1 << 5) | (1 << 4), |
| 69 | |
| 70 | SATA_EXT_PHY = (1 << 6), /* 0==use PATA, 1==ext phy */ |
| 71 | SATA_2DEV = (1 << 5), /* SATA is master/slave */ |
| 72 | }; |
| 73 | |
| 74 | static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 75 | static int svia_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val); |
| 76 | static int 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] | 77 | static void svia_noop_freeze(struct ata_port *ap); |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 78 | static void vt6420_error_handler(struct ata_port *ap); |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 79 | static int vt6421_pata_cable_detect(struct ata_port *ap); |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 80 | static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev); |
| 81 | 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] | 82 | |
Jeff Garzik | 3b7d697 | 2005-11-10 11:04:11 -0500 | [diff] [blame] | 83 | static const struct pci_device_id svia_pci_tbl[] = { |
Luca Pedrielli | 96bc103 | 2007-01-16 12:55:04 +0900 | [diff] [blame] | 84 | { PCI_VDEVICE(VIA, 0x5337), vt6420 }, |
Jeff Garzik | 2d2744f | 2006-09-28 20:21:59 -0400 | [diff] [blame] | 85 | { PCI_VDEVICE(VIA, 0x0591), vt6420 }, |
| 86 | { PCI_VDEVICE(VIA, 0x3149), vt6420 }, |
| 87 | { PCI_VDEVICE(VIA, 0x3249), vt6421 }, |
Jeff Garzik | 52df0ee | 2007-05-25 05:02:06 -0400 | [diff] [blame] | 88 | { PCI_VDEVICE(VIA, 0x5287), vt6420 }, |
| 89 | { PCI_VDEVICE(VIA, 0x5372), vt6420 }, |
| 90 | { PCI_VDEVICE(VIA, 0x7372), vt6420 }, |
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, |
Tejun Heo | e1e143c | 2007-05-04 15:30:34 +0200 | [diff] [blame] | 99 | #ifdef CONFIG_PM |
| 100 | .suspend = ata_pci_device_suspend, |
| 101 | .resume = ata_pci_device_resume, |
| 102 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | .remove = ata_pci_remove_one, |
| 104 | }; |
| 105 | |
Jeff Garzik | 193515d | 2005-11-07 00:59:37 -0500 | [diff] [blame] | 106 | static struct scsi_host_template svia_sht = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | .module = THIS_MODULE, |
| 108 | .name = DRV_NAME, |
| 109 | .ioctl = ata_scsi_ioctl, |
| 110 | .queuecommand = ata_scsi_queuecmd, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | .can_queue = ATA_DEF_QUEUE, |
| 112 | .this_id = ATA_SHT_THIS_ID, |
| 113 | .sg_tablesize = LIBATA_MAX_PRD, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 115 | .emulated = ATA_SHT_EMULATED, |
| 116 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 117 | .proc_name = DRV_NAME, |
| 118 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 119 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | ccf68c3 | 2006-05-31 18:28:09 +0900 | [diff] [blame] | 120 | .slave_destroy = ata_scsi_slave_destroy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | .bios_param = ata_std_bios_param, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | }; |
| 123 | |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 124 | static const struct ata_port_operations vt6420_sata_ops = { |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 125 | .tf_load = ata_tf_load, |
| 126 | .tf_read = ata_tf_read, |
| 127 | .check_status = ata_check_status, |
| 128 | .exec_command = ata_exec_command, |
| 129 | .dev_select = ata_std_dev_select, |
| 130 | |
| 131 | .bmdma_setup = ata_bmdma_setup, |
| 132 | .bmdma_start = ata_bmdma_start, |
| 133 | .bmdma_stop = ata_bmdma_stop, |
| 134 | .bmdma_status = ata_bmdma_status, |
| 135 | |
| 136 | .qc_prep = ata_qc_prep, |
| 137 | .qc_issue = ata_qc_issue_prot, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 138 | .data_xfer = ata_data_xfer, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 139 | |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 140 | .freeze = svia_noop_freeze, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 141 | .thaw = ata_bmdma_thaw, |
| 142 | .error_handler = vt6420_error_handler, |
| 143 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
| 144 | |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 145 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 146 | .irq_on = ata_irq_on, |
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 = { |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 152 | .set_piomode = vt6421_set_pio_mode, |
| 153 | .set_dmamode = vt6421_set_dma_mode, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | |
| 155 | .tf_load = ata_tf_load, |
| 156 | .tf_read = ata_tf_read, |
| 157 | .check_status = ata_check_status, |
| 158 | .exec_command = ata_exec_command, |
| 159 | .dev_select = ata_std_dev_select, |
| 160 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | .bmdma_setup = ata_bmdma_setup, |
| 162 | .bmdma_start = ata_bmdma_start, |
| 163 | .bmdma_stop = ata_bmdma_stop, |
| 164 | .bmdma_status = ata_bmdma_status, |
| 165 | |
| 166 | .qc_prep = ata_qc_prep, |
| 167 | .qc_issue = ata_qc_issue_prot, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 168 | .data_xfer = ata_data_xfer, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | |
Tejun Heo | 40ef1d8 | 2006-06-16 15:13:53 +0900 | [diff] [blame] | 170 | .freeze = ata_bmdma_freeze, |
| 171 | .thaw = ata_bmdma_thaw, |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 172 | .error_handler = ata_bmdma_error_handler, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 173 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 174 | .cable_detect = vt6421_pata_cable_detect, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 175 | |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 176 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 177 | .irq_on = ata_irq_on, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 178 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 179 | .port_start = ata_port_start, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 180 | }; |
| 181 | |
| 182 | static const struct ata_port_operations vt6421_sata_ops = { |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 183 | .tf_load = ata_tf_load, |
| 184 | .tf_read = ata_tf_read, |
| 185 | .check_status = ata_check_status, |
| 186 | .exec_command = ata_exec_command, |
| 187 | .dev_select = ata_std_dev_select, |
| 188 | |
| 189 | .bmdma_setup = ata_bmdma_setup, |
| 190 | .bmdma_start = ata_bmdma_start, |
| 191 | .bmdma_stop = ata_bmdma_stop, |
| 192 | .bmdma_status = ata_bmdma_status, |
| 193 | |
| 194 | .qc_prep = ata_qc_prep, |
| 195 | .qc_issue = ata_qc_issue_prot, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 196 | .data_xfer = ata_data_xfer, |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 197 | |
| 198 | .freeze = ata_bmdma_freeze, |
| 199 | .thaw = ata_bmdma_thaw, |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 200 | .error_handler = ata_bmdma_error_handler, |
Tejun Heo | 40ef1d8 | 2006-06-16 15:13:53 +0900 | [diff] [blame] | 201 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 202 | .cable_detect = ata_cable_sata, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 205 | .irq_on = ata_irq_on, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | |
| 207 | .scr_read = svia_scr_read, |
| 208 | .scr_write = svia_scr_write, |
| 209 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 210 | .port_start = ata_port_start, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | }; |
| 212 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 213 | static const struct ata_port_info vt6420_port_info = { |
Jeff Garzik | cca3974 | 2006-08-24 03:19:22 -0400 | [diff] [blame] | 214 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | .pio_mask = 0x1f, |
| 216 | .mwdma_mask = 0x07, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 217 | .udma_mask = ATA_UDMA6, |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 218 | .port_ops = &vt6420_sata_ops, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | }; |
| 220 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 221 | static struct ata_port_info vt6421_sport_info = { |
| 222 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY, |
| 223 | .pio_mask = 0x1f, |
| 224 | .mwdma_mask = 0x07, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 225 | .udma_mask = ATA_UDMA6, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 226 | .port_ops = &vt6421_sata_ops, |
| 227 | }; |
| 228 | |
| 229 | static struct ata_port_info vt6421_pport_info = { |
| 230 | .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_LEGACY, |
| 231 | .pio_mask = 0x1f, |
| 232 | .mwdma_mask = 0, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 233 | .udma_mask = ATA_UDMA6, |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 234 | .port_ops = &vt6421_pata_ops, |
| 235 | }; |
| 236 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | MODULE_AUTHOR("Jeff Garzik"); |
| 238 | MODULE_DESCRIPTION("SCSI low-level driver for VIA SATA controllers"); |
| 239 | MODULE_LICENSE("GPL"); |
| 240 | MODULE_DEVICE_TABLE(pci, svia_pci_tbl); |
| 241 | MODULE_VERSION(DRV_VERSION); |
| 242 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 243 | static int svia_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | { |
| 245 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 246 | return -EINVAL; |
| 247 | *val = ioread32(ap->ioaddr.scr_addr + (4 * sc_reg)); |
| 248 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | } |
| 250 | |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 251 | static int svia_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | { |
| 253 | if (sc_reg > SCR_CONTROL) |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 254 | return -EINVAL; |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 255 | iowrite32(val, ap->ioaddr.scr_addr + (4 * sc_reg)); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 256 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | } |
| 258 | |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 259 | static void svia_noop_freeze(struct ata_port *ap) |
| 260 | { |
| 261 | /* Some VIA controllers choke if ATA_NIEN is manipulated in |
| 262 | * certain way. Leave it alone and just clear pending IRQ. |
| 263 | */ |
| 264 | ata_chk_status(ap); |
Tejun Heo | d0259872 | 2007-01-26 14:57:31 +0900 | [diff] [blame] | 265 | ata_bmdma_irq_clear(ap); |
Tejun Heo | 1723424 | 2007-01-25 20:46:59 +0900 | [diff] [blame] | 266 | } |
| 267 | |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 268 | /** |
| 269 | * vt6420_prereset - prereset for vt6420 |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 270 | * @link: target ATA link |
Tejun Heo | d4b2bab | 2007-02-02 16:50:52 +0900 | [diff] [blame] | 271 | * @deadline: deadline jiffies for the operation |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 272 | * |
| 273 | * SCR registers on vt6420 are pieces of shit and may hang the |
| 274 | * whole machine completely if accessed with the wrong timing. |
| 275 | * To avoid such catastrophe, vt6420 doesn't provide generic SCR |
| 276 | * access operations, but uses SStatus and SControl only during |
| 277 | * boot probing in controlled way. |
| 278 | * |
| 279 | * As the old (pre EH update) probing code is proven to work, we |
| 280 | * strictly follow the access pattern. |
| 281 | * |
| 282 | * LOCKING: |
| 283 | * Kernel thread context (may sleep) |
| 284 | * |
| 285 | * RETURNS: |
| 286 | * 0 on success, -errno otherwise. |
| 287 | */ |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 288 | static int vt6420_prereset(struct ata_link *link, unsigned long deadline) |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 289 | { |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 290 | struct ata_port *ap = link->ap; |
Tejun Heo | 9af5c9c | 2007-08-06 18:36:22 +0900 | [diff] [blame] | 291 | struct ata_eh_context *ehc = &ap->link.eh_context; |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 292 | unsigned long timeout = jiffies + (HZ * 5); |
| 293 | u32 sstatus, scontrol; |
| 294 | int online; |
| 295 | |
| 296 | /* don't do any SCR stuff if we're not loading */ |
Jeff Garzik | 68ff6e8 | 2006-11-08 07:46:02 -0500 | [diff] [blame] | 297 | if (!(ap->pflags & ATA_PFLAG_LOADING)) |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 298 | goto skip_scr; |
| 299 | |
Jeff Garzik | a09060f | 2007-05-28 08:17:06 -0400 | [diff] [blame] | 300 | /* Resume phy. This is the old SATA resume sequence */ |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 301 | svia_scr_write(ap, SCR_CONTROL, 0x300); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 302 | svia_scr_read(ap, SCR_CONTROL, &scontrol); /* flush */ |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 303 | |
| 304 | /* wait for phy to become ready, if necessary */ |
| 305 | do { |
| 306 | msleep(200); |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 307 | svia_scr_read(ap, SCR_STATUS, &sstatus); |
| 308 | if ((sstatus & 0xf) != 1) |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 309 | break; |
| 310 | } while (time_before(jiffies, timeout)); |
| 311 | |
| 312 | /* open code sata_print_link_status() */ |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 313 | svia_scr_read(ap, SCR_STATUS, &sstatus); |
| 314 | svia_scr_read(ap, SCR_CONTROL, &scontrol); |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 315 | |
| 316 | online = (sstatus & 0xf) == 0x3; |
| 317 | |
| 318 | ata_port_printk(ap, KERN_INFO, |
| 319 | "SATA link %s 1.5 Gbps (SStatus %X SControl %X)\n", |
| 320 | online ? "up" : "down", sstatus, scontrol); |
| 321 | |
| 322 | /* SStatus is read one more time */ |
Tejun Heo | da3dbb1 | 2007-07-16 14:29:40 +0900 | [diff] [blame] | 323 | svia_scr_read(ap, SCR_STATUS, &sstatus); |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 324 | |
| 325 | if (!online) { |
| 326 | /* tell EH to bail */ |
| 327 | ehc->i.action &= ~ATA_EH_RESET_MASK; |
| 328 | return 0; |
| 329 | } |
| 330 | |
| 331 | skip_scr: |
| 332 | /* wait for !BSY */ |
Tejun Heo | d4b2bab | 2007-02-02 16:50:52 +0900 | [diff] [blame] | 333 | ata_wait_ready(ap, deadline); |
Tejun Heo | ac2164d | 2006-08-23 01:00:27 +0900 | [diff] [blame] | 334 | |
| 335 | return 0; |
| 336 | } |
| 337 | |
| 338 | static void vt6420_error_handler(struct ata_port *ap) |
| 339 | { |
| 340 | return ata_bmdma_drive_eh(ap, vt6420_prereset, ata_std_softreset, |
| 341 | NULL, ata_std_postreset); |
| 342 | } |
| 343 | |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 344 | static int vt6421_pata_cable_detect(struct ata_port *ap) |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 345 | { |
| 346 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 347 | u8 tmp; |
| 348 | |
| 349 | pci_read_config_byte(pdev, PATA_UDMA_TIMING, &tmp); |
| 350 | if (tmp & 0x10) |
Jeff Garzik | a0fcdc0 | 2007-03-09 07:24:15 -0500 | [diff] [blame] | 351 | return ATA_CBL_PATA40; |
| 352 | return ATA_CBL_PATA80; |
Alan | d73f30e | 2007-01-08 17:11:13 +0000 | [diff] [blame] | 353 | } |
| 354 | |
| 355 | static void vt6421_set_pio_mode(struct ata_port *ap, struct ata_device *adev) |
| 356 | { |
| 357 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 358 | static const u8 pio_bits[] = { 0xA8, 0x65, 0x65, 0x31, 0x20 }; |
| 359 | pci_write_config_byte(pdev, PATA_PIO_TIMING, pio_bits[adev->pio_mode - XFER_PIO_0]); |
| 360 | } |
| 361 | |
| 362 | static void vt6421_set_dma_mode(struct ata_port *ap, struct ata_device *adev) |
| 363 | { |
| 364 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 365 | 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] | 366 | 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] | 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 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 387 | static void vt6421_init_addrs(struct ata_port *ap) |
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 | void __iomem * const * iomap = ap->host->iomap; |
| 390 | void __iomem *reg_addr = iomap[ap->port_no]; |
| 391 | void __iomem *bmdma_addr = iomap[4] + (ap->port_no * 8); |
| 392 | struct ata_ioports *ioaddr = &ap->ioaddr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 394 | ioaddr->cmd_addr = reg_addr; |
| 395 | ioaddr->altstatus_addr = |
| 396 | ioaddr->ctl_addr = (void __iomem *) |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 397 | ((unsigned long)(reg_addr + 8) | ATA_PCI_CTL_OFS); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 398 | ioaddr->bmdma_addr = bmdma_addr; |
| 399 | ioaddr->scr_addr = vt6421_scr_addr(iomap[5], ap->port_no); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 401 | ata_std_ports(ioaddr); |
Tejun Heo | cbcdd87 | 2007-08-18 13:14:55 +0900 | [diff] [blame^] | 402 | |
| 403 | ata_port_pbar_desc(ap, ap->port_no, -1, "port"); |
| 404 | ata_port_pbar_desc(ap, 4, ap->port_no * 8, "bmdma"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | } |
| 406 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 407 | 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] | 408 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 409 | const struct ata_port_info *ppi[] = { &vt6420_port_info, NULL }; |
| 410 | struct ata_host *host; |
| 411 | int rc; |
Jeff Garzik | f20b16f | 2006-12-11 11:14:06 -0500 | [diff] [blame] | 412 | |
Tejun Heo | d583bc1 | 2007-07-04 18:02:07 +0900 | [diff] [blame] | 413 | rc = ata_pci_prepare_sff_host(pdev, ppi, &host); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 414 | if (rc) |
| 415 | return rc; |
| 416 | *r_host = host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 418 | rc = pcim_iomap_regions(pdev, 1 << 5, DRV_NAME); |
| 419 | if (rc) { |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 420 | 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] | 421 | return rc; |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 422 | } |
| 423 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 424 | host->ports[0]->ioaddr.scr_addr = svia_scr_addr(host->iomap[5], 0); |
| 425 | 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] | 426 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 427 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | } |
| 429 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 430 | 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] | 431 | { |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 432 | const struct ata_port_info *ppi[] = |
| 433 | { &vt6421_sport_info, &vt6421_sport_info, &vt6421_pport_info }; |
| 434 | struct ata_host *host; |
| 435 | int i, rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 437 | *r_host = host = ata_host_alloc_pinfo(&pdev->dev, ppi, ARRAY_SIZE(ppi)); |
| 438 | if (!host) { |
| 439 | dev_printk(KERN_ERR, &pdev->dev, "failed to allocate host\n"); |
| 440 | return -ENOMEM; |
| 441 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | |
Tejun Heo | 8fd7d1b | 2007-05-17 13:37:12 +0200 | [diff] [blame] | 443 | rc = pcim_iomap_regions(pdev, 0x3f, DRV_NAME); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 444 | if (rc) { |
| 445 | dev_printk(KERN_ERR, &pdev->dev, "failed to request/iomap " |
| 446 | "PCI BARs (errno=%d)\n", rc); |
| 447 | return rc; |
| 448 | } |
| 449 | host->iomap = pcim_iomap_table(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 450 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 451 | for (i = 0; i < host->n_ports; i++) |
| 452 | vt6421_init_addrs(host->ports[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 454 | rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); |
| 455 | if (rc) |
| 456 | return rc; |
| 457 | rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); |
| 458 | if (rc) |
| 459 | return rc; |
Tejun Heo | e1be5d7 | 2007-02-20 20:01:53 +0900 | [diff] [blame] | 460 | |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 461 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | } |
| 463 | |
| 464 | static void svia_configure(struct pci_dev *pdev) |
| 465 | { |
| 466 | u8 tmp8; |
| 467 | |
| 468 | pci_read_config_byte(pdev, PCI_INTERRUPT_LINE, &tmp8); |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 469 | 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] | 470 | (int) (tmp8 & 0xf0) == 0xf0 ? 0 : tmp8 & 0x0f); |
| 471 | |
| 472 | /* make sure SATA channels are enabled */ |
| 473 | pci_read_config_byte(pdev, SATA_CHAN_ENAB, &tmp8); |
| 474 | if ((tmp8 & ALL_PORTS) != ALL_PORTS) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 475 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 476 | "enabling SATA channels (0x%x)\n", |
| 477 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | tmp8 |= ALL_PORTS; |
| 479 | pci_write_config_byte(pdev, SATA_CHAN_ENAB, tmp8); |
| 480 | } |
| 481 | |
| 482 | /* make sure interrupts for each channel sent to us */ |
| 483 | pci_read_config_byte(pdev, SATA_INT_GATE, &tmp8); |
| 484 | if ((tmp8 & ALL_PORTS) != ALL_PORTS) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 485 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 486 | "enabling SATA channel interrupts (0x%x)\n", |
| 487 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | tmp8 |= ALL_PORTS; |
| 489 | pci_write_config_byte(pdev, SATA_INT_GATE, tmp8); |
| 490 | } |
| 491 | |
| 492 | /* make sure native mode is enabled */ |
| 493 | pci_read_config_byte(pdev, SATA_NATIVE_MODE, &tmp8); |
| 494 | if ((tmp8 & NATIVE_MODE_ALL) != NATIVE_MODE_ALL) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 495 | dev_printk(KERN_DEBUG, &pdev->dev, |
| 496 | "enabling SATA channel native mode (0x%x)\n", |
| 497 | (int) tmp8); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | tmp8 |= NATIVE_MODE_ALL; |
| 499 | pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8); |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | static int svia_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) |
| 504 | { |
| 505 | static int printed_version; |
| 506 | unsigned int i; |
| 507 | int rc; |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 508 | struct ata_host *host; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | int board_id = (int) ent->driver_data; |
| 510 | const int *bar_sizes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | u8 tmp8; |
| 512 | |
| 513 | if (!printed_version++) |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 514 | dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 515 | |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 516 | rc = pcim_enable_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | if (rc) |
| 518 | return rc; |
| 519 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | if (board_id == vt6420) { |
| 521 | pci_read_config_byte(pdev, SATA_PATA_SHARING, &tmp8); |
| 522 | if (tmp8 & SATA_2DEV) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 523 | dev_printk(KERN_ERR, &pdev->dev, |
| 524 | "SATA master/slave not supported (0x%x)\n", |
| 525 | (int) tmp8); |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 526 | return -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | } |
| 528 | |
| 529 | bar_sizes = &svia_bar_sizes[0]; |
| 530 | } else { |
| 531 | bar_sizes = &vt6421_bar_sizes[0]; |
| 532 | } |
| 533 | |
| 534 | for (i = 0; i < ARRAY_SIZE(svia_bar_sizes); i++) |
| 535 | if ((pci_resource_start(pdev, i) == 0) || |
| 536 | (pci_resource_len(pdev, i) < bar_sizes[i])) { |
Jeff Garzik | a9524a7 | 2005-10-30 14:39:11 -0500 | [diff] [blame] | 537 | dev_printk(KERN_ERR, &pdev->dev, |
Greg Kroah-Hartman | e29419f | 2006-06-12 15:20:16 -0700 | [diff] [blame] | 538 | "invalid PCI BAR %u (sz 0x%llx, val 0x%llx)\n", |
| 539 | i, |
| 540 | (unsigned long long)pci_resource_start(pdev, i), |
| 541 | (unsigned long long)pci_resource_len(pdev, i)); |
Tejun Heo | 24dc5f3 | 2007-01-20 16:00:28 +0900 | [diff] [blame] | 542 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 543 | } |
| 544 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | if (board_id == vt6420) |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 546 | rc = vt6420_prepare_host(pdev, &host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | else |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 548 | rc = vt6421_prepare_host(pdev, &host); |
| 549 | if (rc) |
| 550 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | |
| 552 | svia_configure(pdev); |
| 553 | |
| 554 | pci_set_master(pdev); |
Tejun Heo | eca25dc | 2007-04-17 23:44:07 +0900 | [diff] [blame] | 555 | return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED, |
| 556 | &svia_sht); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | } |
| 558 | |
| 559 | static int __init svia_init(void) |
| 560 | { |
Pavel Roskin | b788719 | 2006-08-10 18:13:18 +0900 | [diff] [blame] | 561 | return pci_register_driver(&svia_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | } |
| 563 | |
| 564 | static void __exit svia_exit(void) |
| 565 | { |
| 566 | pci_unregister_driver(&svia_pci_driver); |
| 567 | } |
| 568 | |
| 569 | module_init(svia_init); |
| 570 | module_exit(svia_exit); |