Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * Copyright (C) 1996-1998 Linus Torvalds & authors (see below) |
| 3 | */ |
| 4 | |
| 5 | /* |
| 6 | * Authors: |
| 7 | * Jaromir Koutek <miri@punknet.cz>, |
| 8 | * Jan Harkes <jaharkes@cwi.nl>, |
| 9 | * Mark Lord <mlord@pobox.com> |
| 10 | * Some parts of code are from ali14xx.c and from rz1000.c. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | */ |
| 12 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/types.h> |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <linux/pci.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include <linux/ide.h> |
| 18 | |
| 19 | #include <asm/io.h> |
| 20 | |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 21 | #define DRV_NAME "opti621" |
| 22 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #define READ_REG 0 /* index of Read cycle timing register */ |
| 24 | #define WRITE_REG 1 /* index of Write cycle timing register */ |
| 25 | #define CNTRL_REG 3 /* index of Control register */ |
| 26 | #define STRAP_REG 5 /* index of Strap register */ |
| 27 | #define MISC_REG 6 /* index of Miscellaneous register */ |
| 28 | |
| 29 | static int reg_base; |
| 30 | |
Bartlomiej Zolnierkiewicz | e65dde7 | 2007-10-20 00:32:35 +0200 | [diff] [blame] | 31 | static DEFINE_SPINLOCK(opti621_lock); |
| 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | /* Write value to register reg, base of register |
| 34 | * is at reg_base (0x1f0 primary, 0x170 secondary, |
| 35 | * if not changed by PCI configuration). |
| 36 | * This is from setupvic.exe program. |
| 37 | */ |
Bartlomiej Zolnierkiewicz | 0ecdca2 | 2007-02-17 02:40:25 +0100 | [diff] [blame] | 38 | static void write_reg(u8 value, int reg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | { |
Bartlomiej Zolnierkiewicz | 0ecdca2 | 2007-02-17 02:40:25 +0100 | [diff] [blame] | 40 | inw(reg_base + 1); |
| 41 | inw(reg_base + 1); |
| 42 | outb(3, reg_base + 2); |
| 43 | outb(value, reg_base + reg); |
| 44 | outb(0x83, reg_base + 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | } |
| 46 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | /* Read value from register reg, base of register |
| 48 | * is at reg_base (0x1f0 primary, 0x170 secondary, |
| 49 | * if not changed by PCI configuration). |
| 50 | * This is from setupvic.exe program. |
| 51 | */ |
Bartlomiej Zolnierkiewicz | 0ecdca2 | 2007-02-17 02:40:25 +0100 | [diff] [blame] | 52 | static u8 read_reg(int reg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | { |
| 54 | u8 ret = 0; |
| 55 | |
Bartlomiej Zolnierkiewicz | 0ecdca2 | 2007-02-17 02:40:25 +0100 | [diff] [blame] | 56 | inw(reg_base + 1); |
| 57 | inw(reg_base + 1); |
| 58 | outb(3, reg_base + 2); |
| 59 | ret = inb(reg_base + reg); |
| 60 | outb(0x83, reg_base + 2); |
| 61 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | return ret; |
| 63 | } |
| 64 | |
Bartlomiej Zolnierkiewicz | e085b3c | 2010-01-19 01:44:41 -0800 | [diff] [blame] | 65 | static void opti621_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | { |
Bartlomiej Zolnierkiewicz | 7e59ea2 | 2008-10-10 22:39:26 +0200 | [diff] [blame] | 67 | ide_drive_t *pair = ide_get_pair_dev(drive); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | unsigned long flags; |
Bartlomiej Zolnierkiewicz | e085b3c | 2010-01-19 01:44:41 -0800 | [diff] [blame] | 69 | unsigned long mode = drive->pio_mode, pair_mode; |
| 70 | const u8 pio = mode - XFER_PIO_0; |
Bartlomiej Zolnierkiewicz | 810253d | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 71 | u8 tim, misc, addr_pio = pio, clk; |
| 72 | |
| 73 | /* DRDY is default 2 (by OPTi Databook) */ |
Bartlomiej Zolnierkiewicz | 80a65fc | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 74 | static const u8 addr_timings[2][5] = { |
| 75 | { 0x20, 0x10, 0x00, 0x00, 0x00 }, /* 33 MHz */ |
| 76 | { 0x10, 0x10, 0x00, 0x00, 0x00 }, /* 25 MHz */ |
Bartlomiej Zolnierkiewicz | 810253d | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 77 | }; |
Bartlomiej Zolnierkiewicz | 80a65fc | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 78 | static const u8 data_rec_timings[2][5] = { |
| 79 | { 0x5b, 0x45, 0x32, 0x21, 0x20 }, /* 33 MHz */ |
| 80 | { 0x48, 0x34, 0x21, 0x10, 0x10 } /* 25 MHz */ |
Bartlomiej Zolnierkiewicz | 810253d | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 81 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | |
Joao Ramos | 5bfb151f | 2009-06-15 22:13:44 +0200 | [diff] [blame] | 83 | ide_set_drivedata(drive, (void *)mode); |
Bartlomiej Zolnierkiewicz | 6c98718 | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 84 | |
Bartlomiej Zolnierkiewicz | 7e59ea2 | 2008-10-10 22:39:26 +0200 | [diff] [blame] | 85 | if (pair) { |
Joao Ramos | 5bfb151f | 2009-06-15 22:13:44 +0200 | [diff] [blame] | 86 | pair_mode = (unsigned long)ide_get_drivedata(pair); |
| 87 | if (pair_mode && pair_mode < mode) |
| 88 | addr_pio = pair_mode - XFER_PIO_0; |
Bartlomiej Zolnierkiewicz | 6c98718 | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 89 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | |
Bartlomiej Zolnierkiewicz | 21bd33a | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 91 | spin_lock_irqsave(&opti621_lock, flags); |
| 92 | |
| 93 | reg_base = hwif->io_ports.data_addr; |
| 94 | |
| 95 | /* allow Register-B */ |
| 96 | outb(0xc0, reg_base + CNTRL_REG); |
| 97 | /* hmm, setupvic.exe does this ;-) */ |
| 98 | outb(0xff, reg_base + 5); |
| 99 | /* if reads 0xff, adapter not exist? */ |
| 100 | (void)inb(reg_base + CNTRL_REG); |
| 101 | /* if reads 0xc0, no interface exist? */ |
| 102 | read_reg(CNTRL_REG); |
| 103 | |
| 104 | /* check CLK speed */ |
| 105 | clk = read_reg(STRAP_REG) & 1; |
| 106 | |
| 107 | printk(KERN_INFO "%s: CLK = %d MHz\n", hwif->name, clk ? 25 : 33); |
| 108 | |
Bartlomiej Zolnierkiewicz | 810253d | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 109 | tim = data_rec_timings[clk][pio]; |
| 110 | misc = addr_timings[clk][addr_pio]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | |
Bartlomiej Zolnierkiewicz | 6c98718 | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 112 | /* select Index-0/1 for Register-A/B */ |
Bartlomiej Zolnierkiewicz | 123995b | 2008-10-13 21:39:40 +0200 | [diff] [blame] | 113 | write_reg(drive->dn & 1, MISC_REG); |
Bartlomiej Zolnierkiewicz | 0ecdca2 | 2007-02-17 02:40:25 +0100 | [diff] [blame] | 114 | /* set read cycle timings */ |
Bartlomiej Zolnierkiewicz | 810253d | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 115 | write_reg(tim, READ_REG); |
Bartlomiej Zolnierkiewicz | 0ecdca2 | 2007-02-17 02:40:25 +0100 | [diff] [blame] | 116 | /* set write cycle timings */ |
Bartlomiej Zolnierkiewicz | 810253d | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 117 | write_reg(tim, WRITE_REG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | /* use Register-A for drive 0 */ |
| 120 | /* use Register-B for drive 1 */ |
Bartlomiej Zolnierkiewicz | 0ecdca2 | 2007-02-17 02:40:25 +0100 | [diff] [blame] | 121 | write_reg(0x85, CNTRL_REG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | |
| 123 | /* set address setup, DRDY timings, */ |
| 124 | /* and read prefetch for both drives */ |
Bartlomiej Zolnierkiewicz | 0ecdca2 | 2007-02-17 02:40:25 +0100 | [diff] [blame] | 125 | write_reg(misc, MISC_REG); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | |
Bartlomiej Zolnierkiewicz | e65dde7 | 2007-10-20 00:32:35 +0200 | [diff] [blame] | 127 | spin_unlock_irqrestore(&opti621_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | } |
| 129 | |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 130 | static const struct ide_port_ops opti621_port_ops = { |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 131 | .set_pio_mode = opti621_set_pio_mode, |
| 132 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | |
Andi Kleen | e6b5370 | 2012-10-04 17:11:48 -0700 | [diff] [blame] | 134 | static const struct ide_port_info opti621_chipset __devinitconst = { |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 135 | .name = DRV_NAME, |
Bartlomiej Zolnierkiewicz | 80a65fc | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 136 | .enablebits = { {0x45, 0x80, 0x00}, {0x40, 0x08, 0x00} }, |
| 137 | .port_ops = &opti621_port_ops, |
| 138 | .host_flags = IDE_HFLAG_NO_DMA, |
| 139 | .pio_mask = ATA_PIO4, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | }; |
| 141 | |
| 142 | static int __devinit opti621_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
| 143 | { |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 144 | return ide_pci_init_one(dev, &opti621_chipset, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | } |
| 146 | |
Bartlomiej Zolnierkiewicz | 9cbcc5e | 2007-10-16 22:29:56 +0200 | [diff] [blame] | 147 | static const struct pci_device_id opti621_pci_tbl[] = { |
| 148 | { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C621), 0 }, |
Bartlomiej Zolnierkiewicz | 80a65fc | 2008-06-15 21:00:22 +0200 | [diff] [blame] | 149 | { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C825), 0 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | { 0, }, |
| 151 | }; |
| 152 | MODULE_DEVICE_TABLE(pci, opti621_pci_tbl); |
| 153 | |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 154 | static struct pci_driver opti621_pci_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | .name = "Opti621_IDE", |
| 156 | .id_table = opti621_pci_tbl, |
| 157 | .probe = opti621_init_one, |
Bartlomiej Zolnierkiewicz | adc7f85 | 2008-07-24 22:53:23 +0200 | [diff] [blame] | 158 | .remove = ide_pci_remove, |
Bartlomiej Zolnierkiewicz | feb22b7 | 2008-10-10 22:39:32 +0200 | [diff] [blame] | 159 | .suspend = ide_pci_suspend, |
| 160 | .resume = ide_pci_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | }; |
| 162 | |
Bartlomiej Zolnierkiewicz | 82ab1ee | 2007-01-27 13:46:56 +0100 | [diff] [blame] | 163 | static int __init opti621_ide_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | { |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 165 | return ide_pci_register_driver(&opti621_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | } |
| 167 | |
Bartlomiej Zolnierkiewicz | adc7f85 | 2008-07-24 22:53:23 +0200 | [diff] [blame] | 168 | static void __exit opti621_ide_exit(void) |
| 169 | { |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 170 | pci_unregister_driver(&opti621_pci_driver); |
Bartlomiej Zolnierkiewicz | adc7f85 | 2008-07-24 22:53:23 +0200 | [diff] [blame] | 171 | } |
| 172 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | module_init(opti621_ide_init); |
Bartlomiej Zolnierkiewicz | adc7f85 | 2008-07-24 22:53:23 +0200 | [diff] [blame] | 174 | module_exit(opti621_ide_exit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | |
| 176 | MODULE_AUTHOR("Jaromir Koutek, Jan Harkes, Mark Lord"); |
| 177 | MODULE_DESCRIPTION("PCI driver module for Opti621 IDE"); |
| 178 | MODULE_LICENSE("GPL"); |