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) 1997-1998 Mark Lord <mlord@pobox.com> |
| 3 | * Copyright (C) 1998 Eddie C. Dost <ecd@skynet.be> |
| 4 | * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org> |
| 5 | * Copyright (C) 2004 Grant Grundler <grundler at parisc-linux.org> |
| 6 | * |
| 7 | * Inspired by an earlier effort from David S. Miller <davem@redhat.com> |
| 8 | */ |
| 9 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | #include <linux/module.h> |
| 11 | #include <linux/types.h> |
| 12 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/interrupt.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/pci.h> |
| 15 | #include <linux/delay.h> |
| 16 | #include <linux/ide.h> |
| 17 | #include <linux/init.h> |
| 18 | |
| 19 | #include <asm/io.h> |
| 20 | |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 21 | #define DRV_NAME "ns87415" |
| 22 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #ifdef CONFIG_SUPERIO |
| 24 | /* SUPERIO 87560 is a PoS chip that NatSem denies exists. |
| 25 | * Unfortunately, it's built-in on all Astro-based PA-RISC workstations |
| 26 | * which use the integrated NS87514 cell for CD-ROM support. |
| 27 | * i.e we have to support for CD-ROM installs. |
| 28 | * See drivers/parisc/superio.c for more gory details. |
| 29 | */ |
| 30 | #include <asm/superio.h> |
| 31 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #define SUPERIO_IDE_MAX_RETRIES 25 |
| 33 | |
| 34 | /* Because of a defect in Super I/O, all reads of the PCI DMA status |
| 35 | * registers, IDE status register and the IDE select register need to be |
| 36 | * retried |
| 37 | */ |
| 38 | static u8 superio_ide_inb (unsigned long port) |
| 39 | { |
Bartlomiej Zolnierkiewicz | 761052e | 2008-07-23 19:55:54 +0200 | [diff] [blame] | 40 | u8 tmp; |
| 41 | int retries = SUPERIO_IDE_MAX_RETRIES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
Bartlomiej Zolnierkiewicz | 761052e | 2008-07-23 19:55:54 +0200 | [diff] [blame] | 43 | /* printk(" [ reading port 0x%x with retry ] ", port); */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
Bartlomiej Zolnierkiewicz | 761052e | 2008-07-23 19:55:54 +0200 | [diff] [blame] | 45 | do { |
| 46 | tmp = inb(port); |
| 47 | if (tmp == 0) |
| 48 | udelay(50); |
| 49 | } while (tmp == 0 && retries-- > 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
Bartlomiej Zolnierkiewicz | 761052e | 2008-07-23 19:55:54 +0200 | [diff] [blame] | 51 | return tmp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | } |
| 53 | |
Bartlomiej Zolnierkiewicz | b73c7ee | 2008-07-23 19:55:52 +0200 | [diff] [blame] | 54 | static u8 superio_read_status(ide_hwif_t *hwif) |
| 55 | { |
| 56 | return superio_ide_inb(hwif->io_ports.status_addr); |
| 57 | } |
| 58 | |
Sergei Shtylyov | 592b531 | 2009-01-06 17:21:02 +0100 | [diff] [blame] | 59 | static u8 superio_dma_sff_read_status(ide_hwif_t *hwif) |
Bartlomiej Zolnierkiewicz | b2f951a | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 60 | { |
Bartlomiej Zolnierkiewicz | cab7f8e | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 61 | return superio_ide_inb(hwif->dma_base + ATA_DMA_STATUS); |
Bartlomiej Zolnierkiewicz | b2f951a | 2008-07-23 19:55:50 +0200 | [diff] [blame] | 62 | } |
| 63 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 64 | static void superio_tf_read(ide_drive_t *drive, struct ide_cmd *cmd) |
Bartlomiej Zolnierkiewicz | ea23b8b | 2008-04-28 23:44:40 +0200 | [diff] [blame] | 65 | { |
| 66 | struct ide_io_ports *io_ports = &drive->hwif->io_ports; |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 67 | struct ide_taskfile *tf = &cmd->tf; |
Bartlomiej Zolnierkiewicz | ea23b8b | 2008-04-28 23:44:40 +0200 | [diff] [blame] | 68 | |
Bartlomiej Zolnierkiewicz | ea23b8b | 2008-04-28 23:44:40 +0200 | [diff] [blame] | 69 | /* be sure we're looking at the low order bits */ |
Sergei Shtylyov | 4d74c3f | 2009-03-31 20:15:29 +0200 | [diff] [blame] | 70 | outb(ATA_DEVCTL_OBS, io_ports->ctl_addr); |
Bartlomiej Zolnierkiewicz | ea23b8b | 2008-04-28 23:44:40 +0200 | [diff] [blame] | 71 | |
Sergei Shtylyov | 6762511 | 2009-03-31 20:15:30 +0200 | [diff] [blame] | 72 | if (cmd->tf_flags & IDE_TFLAG_IN_ERROR) |
| 73 | tf->error = inb(io_ports->feature_addr); |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 74 | if (cmd->tf_flags & IDE_TFLAG_IN_NSECT) |
Bartlomiej Zolnierkiewicz | ea23b8b | 2008-04-28 23:44:40 +0200 | [diff] [blame] | 75 | tf->nsect = inb(io_ports->nsect_addr); |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 76 | if (cmd->tf_flags & IDE_TFLAG_IN_LBAL) |
Bartlomiej Zolnierkiewicz | ea23b8b | 2008-04-28 23:44:40 +0200 | [diff] [blame] | 77 | tf->lbal = inb(io_ports->lbal_addr); |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 78 | if (cmd->tf_flags & IDE_TFLAG_IN_LBAM) |
Bartlomiej Zolnierkiewicz | ea23b8b | 2008-04-28 23:44:40 +0200 | [diff] [blame] | 79 | tf->lbam = inb(io_ports->lbam_addr); |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 80 | if (cmd->tf_flags & IDE_TFLAG_IN_LBAH) |
Bartlomiej Zolnierkiewicz | ea23b8b | 2008-04-28 23:44:40 +0200 | [diff] [blame] | 81 | tf->lbah = inb(io_ports->lbah_addr); |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 82 | if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE) |
Bartlomiej Zolnierkiewicz | ea23b8b | 2008-04-28 23:44:40 +0200 | [diff] [blame] | 83 | tf->device = superio_ide_inb(io_ports->device_addr); |
| 84 | |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 85 | if (cmd->tf_flags & IDE_TFLAG_LBA48) { |
Sergei Shtylyov | 4d74c3f | 2009-03-31 20:15:29 +0200 | [diff] [blame] | 86 | outb(ATA_HOB | ATA_DEVCTL_OBS, io_ports->ctl_addr); |
Bartlomiej Zolnierkiewicz | ea23b8b | 2008-04-28 23:44:40 +0200 | [diff] [blame] | 87 | |
Sergei Shtylyov | 6762511 | 2009-03-31 20:15:30 +0200 | [diff] [blame] | 88 | if (cmd->tf_flags & IDE_TFLAG_IN_HOB_ERROR) |
| 89 | tf->hob_error = inb(io_ports->feature_addr); |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 90 | if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT) |
Sergei Shtylyov | 6762511 | 2009-03-31 20:15:30 +0200 | [diff] [blame] | 91 | tf->hob_nsect = inb(io_ports->nsect_addr); |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 92 | if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL) |
Sergei Shtylyov | 6762511 | 2009-03-31 20:15:30 +0200 | [diff] [blame] | 93 | tf->hob_lbal = inb(io_ports->lbal_addr); |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 94 | if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM) |
Sergei Shtylyov | 6762511 | 2009-03-31 20:15:30 +0200 | [diff] [blame] | 95 | tf->hob_lbam = inb(io_ports->lbam_addr); |
Bartlomiej Zolnierkiewicz | 22aa4b3 | 2009-03-27 12:46:37 +0100 | [diff] [blame] | 96 | if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH) |
Sergei Shtylyov | 6762511 | 2009-03-31 20:15:30 +0200 | [diff] [blame] | 97 | tf->hob_lbah = inb(io_ports->lbah_addr); |
Bartlomiej Zolnierkiewicz | ea23b8b | 2008-04-28 23:44:40 +0200 | [diff] [blame] | 98 | } |
| 99 | } |
| 100 | |
Sergei Shtylyov | abb596b | 2009-03-31 20:15:32 +0200 | [diff] [blame] | 101 | static void ns87415_dev_select(ide_drive_t *drive); |
| 102 | |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 103 | static const struct ide_tp_ops superio_tp_ops = { |
| 104 | .exec_command = ide_exec_command, |
| 105 | .read_status = superio_read_status, |
| 106 | .read_altstatus = ide_read_altstatus, |
Sergei Shtylyov | ecf3a31 | 2009-03-31 20:15:30 +0200 | [diff] [blame] | 107 | .write_devctl = ide_write_devctl, |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 108 | |
Sergei Shtylyov | abb596b | 2009-03-31 20:15:32 +0200 | [diff] [blame] | 109 | .dev_select = ns87415_dev_select, |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 110 | .tf_load = ide_tf_load, |
| 111 | .tf_read = superio_tf_read, |
| 112 | |
| 113 | .input_data = ide_input_data, |
| 114 | .output_data = ide_output_data, |
| 115 | }; |
| 116 | |
| 117 | static void __devinit superio_init_iops(struct hwif_s *hwif) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 118 | { |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 119 | struct pci_dev *pdev = to_pci_dev(hwif->dev); |
Bartlomiej Zolnierkiewicz | 761052e | 2008-07-23 19:55:54 +0200 | [diff] [blame] | 120 | u32 dma_stat; |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 121 | u8 port = hwif->channel, tmp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | |
Bartlomiej Zolnierkiewicz | 761052e | 2008-07-23 19:55:54 +0200 | [diff] [blame] | 123 | dma_stat = (pci_resource_start(pdev, 4) & ~3) + (!port ? 2 : 0xa); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | |
| 125 | /* Clear error/interrupt, enable dma */ |
Bartlomiej Zolnierkiewicz | 761052e | 2008-07-23 19:55:54 +0200 | [diff] [blame] | 126 | tmp = superio_ide_inb(dma_stat); |
| 127 | outb(tmp | 0x66, dma_stat); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | } |
Sergei Shtylyov | 592b531 | 2009-01-06 17:21:02 +0100 | [diff] [blame] | 129 | #else |
| 130 | #define superio_dma_sff_read_status ide_dma_sff_read_status |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | #endif |
| 132 | |
| 133 | static unsigned int ns87415_count = 0, ns87415_control[MAX_HWIFS] = { 0 }; |
| 134 | |
| 135 | /* |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 136 | * This routine either enables/disables (according to IDE_DFLAG_PRESENT) |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 137 | * the IRQ associated with the port, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | * and selects either PIO or DMA handshaking for the next I/O operation. |
| 139 | */ |
| 140 | static void ns87415_prepare_drive (ide_drive_t *drive, unsigned int use_dma) |
| 141 | { |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 142 | ide_hwif_t *hwif = drive->hwif; |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 143 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | unsigned int bit, other, new, *old = (unsigned int *) hwif->select_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | unsigned long flags; |
| 146 | |
| 147 | local_irq_save(flags); |
| 148 | new = *old; |
| 149 | |
| 150 | /* Adjust IRQ enable bit */ |
| 151 | bit = 1 << (8 + hwif->channel); |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 152 | |
| 153 | if (drive->dev_flags & IDE_DFLAG_PRESENT) |
| 154 | new &= ~bit; |
| 155 | else |
| 156 | new |= bit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | |
| 158 | /* Select PIO or DMA, DMA may only be selected for one drive/channel. */ |
Bartlomiej Zolnierkiewicz | 123995b | 2008-10-13 21:39:40 +0200 | [diff] [blame] | 159 | bit = 1 << (20 + (drive->dn & 1) + (hwif->channel << 1)); |
| 160 | other = 1 << (20 + (1 - (drive->dn & 1)) + (hwif->channel << 1)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | new = use_dma ? ((new & ~other) | bit) : (new & ~bit); |
| 162 | |
| 163 | if (new != *old) { |
| 164 | unsigned char stat; |
| 165 | |
| 166 | /* |
| 167 | * Don't change DMA engine settings while Write Buffers |
| 168 | * are busy. |
| 169 | */ |
| 170 | (void) pci_read_config_byte(dev, 0x43, &stat); |
| 171 | while (stat & 0x03) { |
| 172 | udelay(1); |
| 173 | (void) pci_read_config_byte(dev, 0x43, &stat); |
| 174 | } |
| 175 | |
| 176 | *old = new; |
| 177 | (void) pci_write_config_dword(dev, 0x40, new); |
| 178 | |
| 179 | /* |
| 180 | * And let things settle... |
| 181 | */ |
| 182 | udelay(10); |
| 183 | } |
| 184 | |
| 185 | local_irq_restore(flags); |
| 186 | } |
| 187 | |
Sergei Shtylyov | abb596b | 2009-03-31 20:15:32 +0200 | [diff] [blame] | 188 | static void ns87415_dev_select(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | { |
Bartlomiej Zolnierkiewicz | 97100fc | 2008-10-13 21:39:36 +0200 | [diff] [blame] | 190 | ns87415_prepare_drive(drive, |
| 191 | !!(drive->dev_flags & IDE_DFLAG_USING_DMA)); |
Sergei Shtylyov | abb596b | 2009-03-31 20:15:32 +0200 | [diff] [blame] | 192 | |
| 193 | outb(drive->select | ATA_DEVICE_OBS, drive->hwif->io_ports.device_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | } |
| 195 | |
Bartlomiej Zolnierkiewicz | a6d67ff | 2009-03-31 20:15:20 +0200 | [diff] [blame] | 196 | static void ns87415_dma_start(ide_drive_t *drive) |
| 197 | { |
| 198 | ns87415_prepare_drive(drive, 1); |
| 199 | ide_dma_start(drive); |
| 200 | } |
| 201 | |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 202 | static int ns87415_dma_end(ide_drive_t *drive) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | { |
Bartlomiej Zolnierkiewicz | 898ec22 | 2009-01-06 17:20:52 +0100 | [diff] [blame] | 204 | ide_hwif_t *hwif = drive->hwif; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | u8 dma_stat = 0, dma_cmd = 0; |
| 206 | |
Sergei Shtylyov | 592b531 | 2009-01-06 17:21:02 +0100 | [diff] [blame] | 207 | dma_stat = hwif->dma_ops->dma_sff_read_status(hwif); |
Bartlomiej Zolnierkiewicz | cab7f8e | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 208 | /* get DMA command mode */ |
| 209 | dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | /* stop DMA */ |
Bartlomiej Zolnierkiewicz | cab7f8e | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 211 | outb(dma_cmd & ~1, hwif->dma_base + ATA_DMA_CMD); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | /* from ERRATA: clear the INTR & ERROR bits */ |
Bartlomiej Zolnierkiewicz | cab7f8e | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 213 | dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); |
| 214 | outb(dma_cmd | 6, hwif->dma_base + ATA_DMA_CMD); |
Bartlomiej Zolnierkiewicz | a6d67ff | 2009-03-31 20:15:20 +0200 | [diff] [blame] | 215 | |
| 216 | ns87415_prepare_drive(drive, 0); |
| 217 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | /* verify good DMA status */ |
| 219 | return (dma_stat & 7) != 4; |
| 220 | } |
| 221 | |
Herbert Xu | c20530e | 2005-07-03 16:31:04 +0200 | [diff] [blame] | 222 | static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | { |
Bartlomiej Zolnierkiewicz | 3650165 | 2008-02-01 23:09:31 +0100 | [diff] [blame] | 224 | struct pci_dev *dev = to_pci_dev(hwif->dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | unsigned int ctrl, using_inta; |
| 226 | u8 progif; |
| 227 | #ifdef __sparc_v9__ |
| 228 | int timeout; |
| 229 | u8 stat; |
| 230 | #endif |
| 231 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | /* |
| 233 | * We cannot probe for IRQ: both ports share common IRQ on INTA. |
| 234 | * Also, leave IRQ masked during drive probing, to prevent infinite |
| 235 | * interrupts from a potentially floating INTA.. |
| 236 | * |
Sergei Shtylyov | abb596b | 2009-03-31 20:15:32 +0200 | [diff] [blame] | 237 | * IRQs get unmasked in dev_select() when drive is first used. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | */ |
| 239 | (void) pci_read_config_dword(dev, 0x40, &ctrl); |
| 240 | (void) pci_read_config_byte(dev, 0x09, &progif); |
| 241 | /* is irq in "native" mode? */ |
| 242 | using_inta = progif & (1 << (hwif->channel << 1)); |
| 243 | if (!using_inta) |
| 244 | using_inta = ctrl & (1 << (4 + hwif->channel)); |
| 245 | if (hwif->mate) { |
| 246 | hwif->select_data = hwif->mate->select_data; |
| 247 | } else { |
| 248 | hwif->select_data = (unsigned long) |
| 249 | &ns87415_control[ns87415_count++]; |
| 250 | ctrl |= (1 << 8) | (1 << 9); /* mask both IRQs */ |
| 251 | if (using_inta) |
| 252 | ctrl &= ~(1 << 6); /* unmask INTA */ |
| 253 | *((unsigned int *)hwif->select_data) = ctrl; |
| 254 | (void) pci_write_config_dword(dev, 0x40, ctrl); |
| 255 | |
| 256 | /* |
| 257 | * Set prefetch size to 512 bytes for both ports, |
| 258 | * but don't turn on/off prefetching here. |
| 259 | */ |
| 260 | pci_write_config_byte(dev, 0x55, 0xee); |
| 261 | |
| 262 | #ifdef __sparc_v9__ |
| 263 | /* |
Bartlomiej Zolnierkiewicz | 9d50152 | 2008-02-01 23:09:36 +0100 | [diff] [blame] | 264 | * XXX: Reset the device, if we don't it will not respond to |
Sergei Shtylyov | fdd88f0 | 2009-03-31 20:15:33 +0200 | [diff] [blame] | 265 | * dev_select() properly during first ide_probe_port(). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | */ |
| 267 | timeout = 10000; |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 268 | outb(12, hwif->io_ports.ctl_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | udelay(10); |
Bartlomiej Zolnierkiewicz | 4c3032d | 2008-04-27 15:38:32 +0200 | [diff] [blame] | 270 | outb(8, hwif->io_ports.ctl_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | do { |
| 272 | udelay(50); |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 273 | stat = hwif->tp_ops->read_status(hwif); |
Bartlomiej Zolnierkiewicz | 3a7d248 | 2008-10-10 22:39:21 +0200 | [diff] [blame] | 274 | if (stat == 0xff) |
| 275 | break; |
| 276 | } while ((stat & ATA_BUSY) && --timeout); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | #endif |
| 278 | } |
| 279 | |
| 280 | if (!using_inta) |
Bartlomiej Zolnierkiewicz | 973d9e7 | 2009-03-24 23:22:48 +0100 | [diff] [blame] | 281 | hwif->irq = pci_get_legacy_ide_irq(dev, hwif->channel); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | |
| 283 | if (!hwif->dma_base) |
| 284 | return; |
| 285 | |
Bartlomiej Zolnierkiewicz | cab7f8e | 2008-07-23 19:55:51 +0200 | [diff] [blame] | 286 | outb(0x60, hwif->dma_base + ATA_DMA_STATUS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | } |
| 288 | |
Sergei Shtylyov | abb596b | 2009-03-31 20:15:32 +0200 | [diff] [blame] | 289 | static const struct ide_tp_ops ns87415_tp_ops = { |
| 290 | .exec_command = ide_exec_command, |
| 291 | .read_status = ide_read_status, |
| 292 | .read_altstatus = ide_read_altstatus, |
| 293 | .write_devctl = ide_write_devctl, |
| 294 | |
| 295 | .dev_select = ns87415_dev_select, |
| 296 | .tf_load = ide_tf_load, |
| 297 | .tf_read = ide_tf_read, |
| 298 | |
| 299 | .input_data = ide_input_data, |
| 300 | .output_data = ide_output_data, |
Bartlomiej Zolnierkiewicz | ac95bee | 2008-04-26 22:25:14 +0200 | [diff] [blame] | 301 | }; |
| 302 | |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 303 | static const struct ide_dma_ops ns87415_dma_ops = { |
| 304 | .dma_host_set = ide_dma_host_set, |
Bartlomiej Zolnierkiewicz | a6d67ff | 2009-03-31 20:15:20 +0200 | [diff] [blame] | 305 | .dma_setup = ide_dma_setup, |
| 306 | .dma_start = ns87415_dma_start, |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 307 | .dma_end = ns87415_dma_end, |
Bartlomiej Zolnierkiewicz | f37afda | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 308 | .dma_test_irq = ide_dma_test_irq, |
| 309 | .dma_lost_irq = ide_dma_lost_irq, |
Bartlomiej Zolnierkiewicz | 22117d6 | 2009-03-27 12:46:47 +0100 | [diff] [blame] | 310 | .dma_timer_expiry = ide_dma_sff_timer_expiry, |
Sergei Shtylyov | 592b531 | 2009-01-06 17:21:02 +0100 | [diff] [blame] | 311 | .dma_sff_read_status = superio_dma_sff_read_status, |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 312 | }; |
| 313 | |
Bartlomiej Zolnierkiewicz | 8562043 | 2007-10-20 00:32:34 +0200 | [diff] [blame] | 314 | static const struct ide_port_info ns87415_chipset __devinitdata = { |
Bartlomiej Zolnierkiewicz | ced3ec8 | 2008-07-24 22:53:32 +0200 | [diff] [blame] | 315 | .name = DRV_NAME, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | .init_hwif = init_hwif_ns87415, |
Sergei Shtylyov | abb596b | 2009-03-31 20:15:32 +0200 | [diff] [blame] | 317 | .tp_ops = &ns87415_tp_ops, |
Bartlomiej Zolnierkiewicz | 5e37bdc | 2008-04-26 22:25:24 +0200 | [diff] [blame] | 318 | .dma_ops = &ns87415_dma_ops, |
Bartlomiej Zolnierkiewicz | 33c1002 | 2007-10-19 00:30:06 +0200 | [diff] [blame] | 319 | .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | |
Bartlomiej Zolnierkiewicz | 5e71d9c | 2008-04-26 17:36:35 +0200 | [diff] [blame] | 320 | IDE_HFLAG_NO_ATAPI_DMA, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | }; |
| 322 | |
| 323 | static int __devinit ns87415_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
| 324 | { |
Bartlomiej Zolnierkiewicz | 374e042 | 2008-07-23 19:55:56 +0200 | [diff] [blame] | 325 | struct ide_port_info d = ns87415_chipset; |
| 326 | |
| 327 | #ifdef CONFIG_SUPERIO |
| 328 | if (PCI_SLOT(dev->devfn) == 0xE) { |
| 329 | /* Built-in - assume it's under superio. */ |
| 330 | d.init_iops = superio_init_iops; |
| 331 | d.tp_ops = &superio_tp_ops; |
| 332 | } |
| 333 | #endif |
Bartlomiej Zolnierkiewicz | 6cdf6eb | 2008-07-24 22:53:14 +0200 | [diff] [blame] | 334 | return ide_pci_init_one(dev, &d, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | } |
| 336 | |
Bartlomiej Zolnierkiewicz | 9cbcc5e | 2007-10-16 22:29:56 +0200 | [diff] [blame] | 337 | static const struct pci_device_id ns87415_pci_tbl[] = { |
| 338 | { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87415), 0 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | { 0, }, |
| 340 | }; |
| 341 | MODULE_DEVICE_TABLE(pci, ns87415_pci_tbl); |
| 342 | |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 343 | static struct pci_driver ns87415_pci_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | .name = "NS87415_IDE", |
| 345 | .id_table = ns87415_pci_tbl, |
| 346 | .probe = ns87415_init_one, |
Bartlomiej Zolnierkiewicz | aa6e518 | 2008-07-24 22:53:23 +0200 | [diff] [blame] | 347 | .remove = ide_pci_remove, |
Bartlomiej Zolnierkiewicz | feb22b7 | 2008-10-10 22:39:32 +0200 | [diff] [blame] | 348 | .suspend = ide_pci_suspend, |
| 349 | .resume = ide_pci_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | }; |
| 351 | |
Bartlomiej Zolnierkiewicz | 82ab1ee | 2007-01-27 13:46:56 +0100 | [diff] [blame] | 352 | static int __init ns87415_ide_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | { |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 354 | return ide_pci_register_driver(&ns87415_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | } |
| 356 | |
Bartlomiej Zolnierkiewicz | aa6e518 | 2008-07-24 22:53:23 +0200 | [diff] [blame] | 357 | static void __exit ns87415_ide_exit(void) |
| 358 | { |
Bartlomiej Zolnierkiewicz | a9ab09e | 2008-10-13 21:39:41 +0200 | [diff] [blame] | 359 | pci_unregister_driver(&ns87415_pci_driver); |
Bartlomiej Zolnierkiewicz | aa6e518 | 2008-07-24 22:53:23 +0200 | [diff] [blame] | 360 | } |
| 361 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | module_init(ns87415_ide_init); |
Bartlomiej Zolnierkiewicz | aa6e518 | 2008-07-24 22:53:23 +0200 | [diff] [blame] | 363 | module_exit(ns87415_ide_exit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | |
| 365 | MODULE_AUTHOR("Mark Lord, Eddie Dost, Andre Hedrick"); |
| 366 | MODULE_DESCRIPTION("PCI driver module for NS87415 IDE"); |
| 367 | MODULE_LICENSE("GPL"); |