diff options
Diffstat (limited to 'drivers/ide/rz1000.c')
| -rw-r--r-- | drivers/ide/rz1000.c | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/drivers/ide/rz1000.c b/drivers/ide/rz1000.c deleted file mode 100644 index fce2b7de5a19..000000000000 --- a/drivers/ide/rz1000.c +++ /dev/null @@ -1,100 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1995-1998 Linus Torvalds & author (see below) - */ - -/* - * Principal Author: mlord@pobox.com (Mark Lord) - * - * See linux/MAINTAINERS for address of current maintainer. - * - * This file provides support for disabling the buggy read-ahead - * mode of the RZ1000 IDE chipset, commonly used on Intel motherboards. - * - * Dunno if this fixes both ports, or only the primary port (?). - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#define DRV_NAME "rz1000" - -static int rz1000_disable_readahead(struct pci_dev *dev) -{ - u16 reg; - - if (!pci_read_config_word (dev, 0x40, ®) && - !pci_write_config_word(dev, 0x40, reg & 0xdfff)) { - printk(KERN_INFO "%s: disabled chipset read-ahead " - "(buggy RZ1000/RZ1001)\n", pci_name(dev)); - return 0; - } else { - printk(KERN_INFO "%s: serialized, disabled unmasking " - "(buggy RZ1000/RZ1001)\n", pci_name(dev)); - return 1; - } -} - -static const struct ide_port_info rz1000_chipset = { - .name = DRV_NAME, - .host_flags = IDE_HFLAG_NO_DMA, -}; - -static int rz1000_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct ide_port_info d = rz1000_chipset; - int rc; - - rc = pci_enable_device(dev); - if (rc) - return rc; - - if (rz1000_disable_readahead(dev)) { - d.host_flags |= IDE_HFLAG_SERIALIZE; - d.host_flags |= IDE_HFLAG_NO_UNMASK_IRQS; - } - - return ide_pci_init_one(dev, &d, NULL); -} - -static void rz1000_remove(struct pci_dev *dev) -{ - ide_pci_remove(dev); - pci_disable_device(dev); -} - -static const struct pci_device_id rz1000_pci_tbl[] = { - { PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_RZ1000), 0 }, - { PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_RZ1001), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, rz1000_pci_tbl); - -static struct pci_driver rz1000_pci_driver = { - .name = "RZ1000_IDE", - .id_table = rz1000_pci_tbl, - .probe = rz1000_init_one, - .remove = rz1000_remove, -}; - -static int __init rz1000_ide_init(void) -{ - return ide_pci_register_driver(&rz1000_pci_driver); -} - -static void __exit rz1000_ide_exit(void) -{ - pci_unregister_driver(&rz1000_pci_driver); -} - -module_init(rz1000_ide_init); -module_exit(rz1000_ide_exit); - -MODULE_AUTHOR("Andre Hedrick"); -MODULE_DESCRIPTION("PCI driver module for RZ1000 IDE"); -MODULE_LICENSE("GPL"); - |