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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [ide/] [pci/] [adma100.c] - Rev 1275
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/* * linux/drivers/ide/pci/adma100.c -- basic support for Pacific Digital ADMA-100 boards * * Created 09 Apr 2002 by Mark Lord * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive for * more details. */ #include <linux/config.h> /* for CONFIG_BLK_DEV_IDEPCI */ #include <linux/types.h> #include <linux/module.h> #include <linux/mm.h> #include <linux/blkdev.h> #include <linux/hdreg.h> #include <linux/ide.h> #include <linux/init.h> #include <linux/pci.h> #include <asm/io.h> #include "adma100.h" void __init init_hwif_adma100 (ide_hwif_t *hwif) { unsigned long phy_admctl = pci_resource_start(hwif->pci_dev, 4) + 0x80 + (hwif->channel * 0x20); void *v_admctl; hwif->autodma = 0; // not compatible with normal IDE DMA transfers hwif->dma_base = 0; // disable DMA completely hwif->io_ports[IDE_CONTROL_OFFSET] += 4; // chip needs offset of 6 instead of 2 v_admctl = ioremap_nocache(phy_admctl, 1024); // map config regs, so we can turn on drive IRQs *((unsigned short *)v_admctl) &= 3; // enable aIEN; preserve PIO mode iounmap(v_admctl); // all done; unmap config regs printk("ADMA100: initialized %s for basic PIO-only operation\n", hwif->name); } extern void ide_setup_pci_device(struct pci_dev *, ide_pci_device_t *); static int __devinit adma100_init_one (struct pci_dev *dev, const struct pci_device_id *id) { ide_pci_device_t *d = &adma100_chipsets[id->driver_data]; if (dev->device != d->device) BUG(); ide_setup_pci_device(dev, d); MOD_INC_USE_COUNT; return 0; } static struct pci_device_id adma100_pci_tbl[] __devinitdata = { { PCI_VENDOR_ID_PDC, PCI_DEVICE_ID_PDC_ADMA100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { 0, }, }; static struct pci_driver driver = { .name = "ADMA100 IDE", .id_table = adma100_pci_tbl, .probe = adma100_init_one, }; static int adma100_ide_init (void) { return ide_pci_register_driver(&driver); } static void adma100_ide_exit (void) { ide_pci_unregister_driver(&driver); } module_init(adma100_ide_init); module_exit(adma100_ide_exit); MODULE_AUTHOR("Mark Lord"); MODULE_DESCRIPTION("Basic PIO support for ADMA100 IDE"); MODULE_LICENSE("GPL"); EXPORT_NO_SYMBOLS;
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