diff options
Diffstat (limited to 'drivers/ide/slc90e66.c')
| -rw-r--r-- | drivers/ide/slc90e66.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/drivers/ide/slc90e66.c b/drivers/ide/slc90e66.c deleted file mode 100644 index f521d5ebf916..000000000000 --- a/drivers/ide/slc90e66.c +++ /dev/null @@ -1,182 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2006-2007 MontaVista Software, Inc. <source@mvista.com> - * - * This is a look-alike variation of the ICH0 PIIX4 Ultra-66, - * but this keeps the ISA-Bridge and slots alive. - * - */ - -#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 "slc90e66" - -static DEFINE_SPINLOCK(slc90e66_lock); - -static void slc90e66_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - int is_slave = drive->dn & 1; - int master_port = hwif->channel ? 0x42 : 0x40; - int slave_port = 0x44; - unsigned long flags; - u16 master_data; - u8 slave_data; - int control = 0; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - /* ISP RTC */ - static const u8 timings[][2] = { - { 0, 0 }, - { 0, 0 }, - { 1, 0 }, - { 2, 1 }, - { 2, 3 }, }; - - spin_lock_irqsave(&slc90e66_lock, flags); - pci_read_config_word(dev, master_port, &master_data); - - if (pio > 1) - control |= 1; /* Programmable timing on */ - if (drive->media == ide_disk) - control |= 4; /* Prefetch, post write */ - if (ide_pio_need_iordy(drive, pio)) - control |= 2; /* IORDY */ - if (is_slave) { - master_data |= 0x4000; - master_data &= ~0x0070; - if (pio > 1) { - /* Set PPE, IE and TIME */ - master_data |= control << 4; - } - pci_read_config_byte(dev, slave_port, &slave_data); - slave_data &= hwif->channel ? 0x0f : 0xf0; - slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << - (hwif->channel ? 4 : 0); - } else { - master_data &= ~0x3307; - if (pio > 1) { - /* enable PPE, IE and TIME */ - master_data |= control; - } - master_data |= (timings[pio][0] << 12) | (timings[pio][1] << 8); - } - pci_write_config_word(dev, master_port, master_data); - if (is_slave) - pci_write_config_byte(dev, slave_port, slave_data); - spin_unlock_irqrestore(&slc90e66_lock, flags); -} - -static void slc90e66_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 maslave = hwif->channel ? 0x42 : 0x40; - int sitre = 0, a_speed = 7 << (drive->dn * 4); - int u_speed = 0, u_flag = 1 << drive->dn; - u16 reg4042, reg44, reg48, reg4a; - const u8 speed = drive->dma_mode; - - pci_read_config_word(dev, maslave, ®4042); - sitre = (reg4042 & 0x4000) ? 1 : 0; - pci_read_config_word(dev, 0x44, ®44); - pci_read_config_word(dev, 0x48, ®48); - pci_read_config_word(dev, 0x4a, ®4a); - - if (speed >= XFER_UDMA_0) { - u_speed = (speed - XFER_UDMA_0) << (drive->dn * 4); - - if (!(reg48 & u_flag)) - pci_write_config_word(dev, 0x48, reg48|u_flag); - if ((reg4a & a_speed) != u_speed) { - pci_write_config_word(dev, 0x4a, reg4a & ~a_speed); - pci_read_config_word(dev, 0x4a, ®4a); - pci_write_config_word(dev, 0x4a, reg4a|u_speed); - } - } else { - const u8 mwdma_to_pio[] = { 0, 3, 4 }; - - if (reg48 & u_flag) - pci_write_config_word(dev, 0x48, reg48 & ~u_flag); - if (reg4a & a_speed) - pci_write_config_word(dev, 0x4a, reg4a & ~a_speed); - - if (speed >= XFER_MW_DMA_0) - drive->pio_mode = - mwdma_to_pio[speed - XFER_MW_DMA_0] + XFER_PIO_0; - else - drive->pio_mode = XFER_PIO_2; /* for SWDMA2 */ - - slc90e66_set_pio_mode(hwif, drive); - } -} - -static u8 slc90e66_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 reg47 = 0, mask = hwif->channel ? 0x01 : 0x02; - - pci_read_config_byte(dev, 0x47, ®47); - - /* bit[0(1)]: 0:80, 1:40 */ - return (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80; -} - -static const struct ide_port_ops slc90e66_port_ops = { - .set_pio_mode = slc90e66_set_pio_mode, - .set_dma_mode = slc90e66_set_dma_mode, - .cable_detect = slc90e66_cable_detect, -}; - -static const struct ide_port_info slc90e66_chipset = { - .name = DRV_NAME, - .enablebits = { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} }, - .port_ops = &slc90e66_port_ops, - .pio_mask = ATA_PIO4, - .swdma_mask = ATA_SWDMA2_ONLY, - .mwdma_mask = ATA_MWDMA12_ONLY, - .udma_mask = ATA_UDMA4, -}; - -static int slc90e66_init_one(struct pci_dev *dev, - const struct pci_device_id *id) -{ - return ide_pci_init_one(dev, &slc90e66_chipset, NULL); -} - -static const struct pci_device_id slc90e66_pci_tbl[] = { - { PCI_VDEVICE(EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, slc90e66_pci_tbl); - -static struct pci_driver slc90e66_pci_driver = { - .name = "SLC90e66_IDE", - .id_table = slc90e66_pci_tbl, - .probe = slc90e66_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init slc90e66_ide_init(void) -{ - return ide_pci_register_driver(&slc90e66_pci_driver); -} - -static void __exit slc90e66_ide_exit(void) -{ - pci_unregister_driver(&slc90e66_pci_driver); -} - -module_init(slc90e66_ide_init); -module_exit(slc90e66_ide_exit); - -MODULE_AUTHOR("Andre Hedrick"); -MODULE_DESCRIPTION("PCI driver module for SLC90E66 IDE"); -MODULE_LICENSE("GPL"); |