Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Marvell PATA driver. |
| 3 | * |
| 4 | * For the moment we drive the PATA port in legacy mode. That |
| 5 | * isn't making full use of the device functionality but it is |
| 6 | * easy to get working. |
| 7 | * |
| 8 | * (c) 2006 Red Hat <alan@redhat.com> |
| 9 | */ |
| 10 | |
| 11 | #include <linux/kernel.h> |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/pci.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/blkdev.h> |
| 16 | #include <linux/delay.h> |
| 17 | #include <linux/device.h> |
| 18 | #include <scsi/scsi_host.h> |
| 19 | #include <linux/libata.h> |
| 20 | #include <linux/ata.h> |
| 21 | |
| 22 | #define DRV_NAME "pata_marvell" |
Alan Cox | 307c605 | 2007-03-07 16:48:09 +0000 | [diff] [blame] | 23 | #define DRV_VERSION "0.1.4" |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 24 | |
| 25 | /** |
| 26 | * marvell_pre_reset - check for 40/80 pin |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 27 | * @link: link |
Tejun Heo | d4b2bab | 2007-02-02 16:50:52 +0900 | [diff] [blame] | 28 | * @deadline: deadline jiffies for the operation |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 29 | * |
| 30 | * Perform the PATA port setup we need. |
| 31 | */ |
| 32 | |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 33 | static int marvell_pre_reset(struct ata_link *link, unsigned long deadline) |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 34 | { |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 35 | struct ata_port *ap = link->ap; |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 36 | struct pci_dev *pdev = to_pci_dev(ap->host->dev); |
| 37 | u32 devices; |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 38 | void __iomem *barp; |
| 39 | int i; |
| 40 | |
| 41 | /* Check if our port is enabled */ |
| 42 | |
Jeff Garzik | 6e9d862 | 2006-10-21 15:54:13 -0400 | [diff] [blame] | 43 | barp = pci_iomap(pdev, 5, 0x10); |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 44 | if (barp == NULL) |
| 45 | return -ENOMEM; |
| 46 | printk("BAR5:"); |
| 47 | for(i = 0; i <= 0x0F; i++) |
Jiri Slaby | 90925d3 | 2007-10-02 13:53:01 -0700 | [diff] [blame] | 48 | printk("%02X:%02X ", i, ioread8(barp + i)); |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 49 | printk("\n"); |
Jeff Garzik | f20b16f | 2006-12-11 11:14:06 -0500 | [diff] [blame] | 50 | |
Jiri Slaby | 90925d3 | 2007-10-02 13:53:01 -0700 | [diff] [blame] | 51 | devices = ioread32(barp + 0x0C); |
Jeff Garzik | 6e9d862 | 2006-10-21 15:54:13 -0400 | [diff] [blame] | 52 | pci_iounmap(pdev, barp); |
Jeff Garzik | f20b16f | 2006-12-11 11:14:06 -0500 | [diff] [blame] | 53 | |
Jeff Garzik | 6e9d862 | 2006-10-21 15:54:13 -0400 | [diff] [blame] | 54 | if ((pdev->device == 0x6145) && (ap->port_no == 0) && |
| 55 | (!(devices & 0x10))) /* PATA enable ? */ |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 56 | return -ENOENT; |
Jeff Garzik | 27c78b3 | 2007-03-09 09:41:19 -0500 | [diff] [blame] | 57 | |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 58 | return ata_std_prereset(link, deadline); |
Alan Cox | 307c605 | 2007-03-07 16:48:09 +0000 | [diff] [blame] | 59 | } |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 60 | |
Alan Cox | 307c605 | 2007-03-07 16:48:09 +0000 | [diff] [blame] | 61 | static int marvell_cable_detect(struct ata_port *ap) |
| 62 | { |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 63 | /* Cable type */ |
| 64 | switch(ap->port_no) |
| 65 | { |
Jeff Garzik | 6e9d862 | 2006-10-21 15:54:13 -0400 | [diff] [blame] | 66 | case 0: |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 67 | if (ioread8(ap->ioaddr.bmdma_addr + 1) & 1) |
Alan Cox | 307c605 | 2007-03-07 16:48:09 +0000 | [diff] [blame] | 68 | return ATA_CBL_PATA40; |
| 69 | return ATA_CBL_PATA80; |
Jeff Garzik | 6e9d862 | 2006-10-21 15:54:13 -0400 | [diff] [blame] | 70 | case 1: /* Legacy SATA port */ |
Alan Cox | 307c605 | 2007-03-07 16:48:09 +0000 | [diff] [blame] | 71 | return ATA_CBL_SATA; |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 72 | } |
Tejun Heo | d4b2bab | 2007-02-02 16:50:52 +0900 | [diff] [blame] | 73 | |
Alan Cox | 307c605 | 2007-03-07 16:48:09 +0000 | [diff] [blame] | 74 | BUG(); |
| 75 | return 0; /* Our BUG macro needs the right markup */ |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 76 | } |
| 77 | |
| 78 | /** |
| 79 | * marvell_error_handler - Setup and error handler |
| 80 | * @ap: Port to handle |
| 81 | * |
| 82 | * LOCKING: |
| 83 | * None (inherited from caller). |
| 84 | */ |
| 85 | |
| 86 | static void marvell_error_handler(struct ata_port *ap) |
| 87 | { |
Jeff Garzik | 6e9d862 | 2006-10-21 15:54:13 -0400 | [diff] [blame] | 88 | return ata_bmdma_drive_eh(ap, marvell_pre_reset, ata_std_softreset, |
| 89 | NULL, ata_std_postreset); |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 90 | } |
| 91 | |
| 92 | /* No PIO or DMA methods needed for this device */ |
| 93 | |
| 94 | static struct scsi_host_template marvell_sht = { |
| 95 | .module = THIS_MODULE, |
| 96 | .name = DRV_NAME, |
| 97 | .ioctl = ata_scsi_ioctl, |
| 98 | .queuecommand = ata_scsi_queuecmd, |
| 99 | .can_queue = ATA_DEF_QUEUE, |
| 100 | .this_id = ATA_SHT_THIS_ID, |
| 101 | .sg_tablesize = LIBATA_MAX_PRD, |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 102 | .cmd_per_lun = ATA_SHT_CMD_PER_LUN, |
| 103 | .emulated = ATA_SHT_EMULATED, |
| 104 | .use_clustering = ATA_SHT_USE_CLUSTERING, |
| 105 | .proc_name = DRV_NAME, |
| 106 | .dma_boundary = ATA_DMA_BOUNDARY, |
| 107 | .slave_configure = ata_scsi_slave_config, |
Tejun Heo | c972b60 | 2006-11-29 12:10:46 +0900 | [diff] [blame] | 108 | .slave_destroy = ata_scsi_slave_destroy, |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 109 | /* Use standard CHS mapping rules */ |
| 110 | .bios_param = ata_std_bios_param, |
| 111 | }; |
| 112 | |
| 113 | static const struct ata_port_operations marvell_ops = { |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 114 | /* Task file is PCI ATA format, use helpers */ |
| 115 | .tf_load = ata_tf_load, |
| 116 | .tf_read = ata_tf_read, |
| 117 | .check_status = ata_check_status, |
| 118 | .exec_command = ata_exec_command, |
| 119 | .dev_select = ata_std_dev_select, |
| 120 | |
| 121 | .freeze = ata_bmdma_freeze, |
| 122 | .thaw = ata_bmdma_thaw, |
| 123 | .error_handler = marvell_error_handler, |
| 124 | .post_internal_cmd = ata_bmdma_post_internal_cmd, |
Alan Cox | 307c605 | 2007-03-07 16:48:09 +0000 | [diff] [blame] | 125 | .cable_detect = marvell_cable_detect, |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 126 | |
| 127 | /* BMDMA handling is PCI ATA format, use helpers */ |
| 128 | .bmdma_setup = ata_bmdma_setup, |
| 129 | .bmdma_start = ata_bmdma_start, |
| 130 | .bmdma_stop = ata_bmdma_stop, |
| 131 | .bmdma_status = ata_bmdma_status, |
| 132 | .qc_prep = ata_qc_prep, |
| 133 | .qc_issue = ata_qc_issue_prot, |
Tejun Heo | 0d5ff56 | 2007-02-01 15:06:36 +0900 | [diff] [blame] | 134 | .data_xfer = ata_data_xfer, |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 135 | |
| 136 | /* Timeout handling */ |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 137 | .irq_handler = ata_interrupt, |
| 138 | .irq_clear = ata_bmdma_irq_clear, |
Akira Iguchi | 246ce3b | 2007-01-26 16:27:58 +0900 | [diff] [blame] | 139 | .irq_on = ata_irq_on, |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 140 | |
| 141 | /* Generic PATA PCI ATA helpers */ |
Alan Cox | 81ad183 | 2007-08-22 22:55:41 +0100 | [diff] [blame^] | 142 | .port_start = ata_sff_port_start, |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 143 | }; |
| 144 | |
| 145 | |
| 146 | /** |
| 147 | * marvell_init_one - Register Marvell ATA PCI device with kernel services |
| 148 | * @pdev: PCI device to register |
| 149 | * @ent: Entry in marvell_pci_tbl matching with @pdev |
| 150 | * |
| 151 | * Called from kernel PCI layer. |
| 152 | * |
| 153 | * LOCKING: |
| 154 | * Inherited from PCI layer (may sleep). |
| 155 | * |
| 156 | * RETURNS: |
| 157 | * Zero on success, or -ERRNO value. |
| 158 | */ |
| 159 | |
| 160 | static int marvell_init_one (struct pci_dev *pdev, const struct pci_device_id *id) |
| 161 | { |
Tejun Heo | 1626aeb | 2007-05-04 12:43:58 +0200 | [diff] [blame] | 162 | static const struct ata_port_info info = { |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 163 | .sht = &marvell_sht, |
Jeff Garzik | 1d2808f | 2007-05-28 06:59:48 -0400 | [diff] [blame] | 164 | .flags = ATA_FLAG_SLAVE_POSS, |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 165 | |
| 166 | .pio_mask = 0x1f, |
| 167 | .mwdma_mask = 0x07, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 168 | .udma_mask = ATA_UDMA5, |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 169 | |
| 170 | .port_ops = &marvell_ops, |
| 171 | }; |
Tejun Heo | 1626aeb | 2007-05-04 12:43:58 +0200 | [diff] [blame] | 172 | static const struct ata_port_info info_sata = { |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 173 | .sht = &marvell_sht, |
| 174 | /* Slave possible as its magically mapped not real */ |
Jeff Garzik | 1d2808f | 2007-05-28 06:59:48 -0400 | [diff] [blame] | 175 | .flags = ATA_FLAG_SLAVE_POSS, |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 176 | |
| 177 | .pio_mask = 0x1f, |
| 178 | .mwdma_mask = 0x07, |
Jeff Garzik | bf6263a | 2007-07-09 12:16:50 -0400 | [diff] [blame] | 179 | .udma_mask = ATA_UDMA6, |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 180 | |
| 181 | .port_ops = &marvell_ops, |
| 182 | }; |
Tejun Heo | 1626aeb | 2007-05-04 12:43:58 +0200 | [diff] [blame] | 183 | const struct ata_port_info *ppi[] = { &info, &info_sata }; |
Jeff Garzik | 6e9d862 | 2006-10-21 15:54:13 -0400 | [diff] [blame] | 184 | |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 185 | if (pdev->device == 0x6101) |
Tejun Heo | 1626aeb | 2007-05-04 12:43:58 +0200 | [diff] [blame] | 186 | ppi[1] = &ata_dummy_port_info; |
Jeff Garzik | 6e9d862 | 2006-10-21 15:54:13 -0400 | [diff] [blame] | 187 | |
Tejun Heo | 1626aeb | 2007-05-04 12:43:58 +0200 | [diff] [blame] | 188 | return ata_pci_init_one(pdev, ppi); |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | static const struct pci_device_id marvell_pci_tbl[] = { |
| 192 | { PCI_DEVICE(0x11AB, 0x6101), }, |
Alan Cox | d36ee18 | 2007-08-23 20:19:55 +0100 | [diff] [blame] | 193 | { PCI_DEVICE(0x11AB, 0x6121), }, |
| 194 | { PCI_DEVICE(0x11AB, 0x6123), }, |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 195 | { PCI_DEVICE(0x11AB, 0x6145), }, |
| 196 | { } /* terminate list */ |
| 197 | }; |
| 198 | |
| 199 | static struct pci_driver marvell_pci_driver = { |
| 200 | .name = DRV_NAME, |
| 201 | .id_table = marvell_pci_tbl, |
| 202 | .probe = marvell_init_one, |
| 203 | .remove = ata_pci_remove_one, |
Tejun Heo | 438ac6d | 2007-03-02 17:31:26 +0900 | [diff] [blame] | 204 | #ifdef CONFIG_PM |
Alan | 30ced0f | 2006-11-22 16:57:36 +0000 | [diff] [blame] | 205 | .suspend = ata_pci_device_suspend, |
| 206 | .resume = ata_pci_device_resume, |
Tejun Heo | 438ac6d | 2007-03-02 17:31:26 +0900 | [diff] [blame] | 207 | #endif |
Alan Cox | 75742cb | 2006-10-16 16:40:06 +0100 | [diff] [blame] | 208 | }; |
| 209 | |
| 210 | static int __init marvell_init(void) |
| 211 | { |
| 212 | return pci_register_driver(&marvell_pci_driver); |
| 213 | } |
| 214 | |
| 215 | static void __exit marvell_exit(void) |
| 216 | { |
| 217 | pci_unregister_driver(&marvell_pci_driver); |
| 218 | } |
| 219 | |
| 220 | module_init(marvell_init); |
| 221 | module_exit(marvell_exit); |
| 222 | |
| 223 | MODULE_AUTHOR("Alan Cox"); |
| 224 | MODULE_DESCRIPTION("SCSI low-level driver for Marvell ATA in legacy mode"); |
| 225 | MODULE_LICENSE("GPL"); |
| 226 | MODULE_DEVICE_TABLE(pci, marvell_pci_tbl); |
| 227 | MODULE_VERSION(DRV_VERSION); |
| 228 | |