mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 10:20:51 +07:00
9ff6f72f43
* hpt34x.c: disable DMA masks for HPT345 (hwif->autodma is zero so DMA won't be enabled anyway). * trm290.c: disable IDE_HFLAG_TRUST_BIOS_FOR_DMA flag (hwif->autodma is zero so DMA won't be enabled anyway). * Check noautodma global variable instead of drive->autodma in ide_tune_dma(). This fixes handling of "ide=nodma" kernel parameter for icside, ide-cris, au1xxx-ide, pmac, it821x, jmicron, sgiioc4 and siimage host drivers. * Remove hwif->autodma (it was not checked by IDE core code anyway) and drive->autodma (was set by all host drivers - except HPT345/TRM290 special cases - unless "ide=nodma" was used). While at it: - remove needless printk() from icside.c - remove stale FIXME/comment from ide-probe.c - don't force DMA off if PCI bus-mastering had to be enabled in setup-pci.c (this setting was always later over-ridden by host drivers anyway) Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
151 lines
3.6 KiB
C
151 lines
3.6 KiB
C
/*
|
|
* triflex.c
|
|
*
|
|
* IDE Chipset driver for the Compaq TriFlex IDE controller.
|
|
*
|
|
* Known to work with the Compaq Workstation 5x00 series.
|
|
*
|
|
* Copyright (C) 2002 Hewlett-Packard Development Group, L.P.
|
|
* Author: Torben Mathiasen <torben.mathiasen@hp.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* Loosely based on the piix & svwks drivers.
|
|
*
|
|
* Documentation:
|
|
* Not publically available.
|
|
*/
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/blkdev.h>
|
|
#include <linux/hdreg.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/ide.h>
|
|
#include <linux/init.h>
|
|
|
|
static void triflex_set_mode(ide_drive_t *drive, const u8 speed)
|
|
{
|
|
ide_hwif_t *hwif = HWIF(drive);
|
|
struct pci_dev *dev = hwif->pci_dev;
|
|
u8 channel_offset = hwif->channel ? 0x74 : 0x70;
|
|
u16 timing = 0;
|
|
u32 triflex_timings = 0;
|
|
u8 unit = (drive->select.b.unit & 0x01);
|
|
|
|
pci_read_config_dword(dev, channel_offset, &triflex_timings);
|
|
|
|
switch(speed) {
|
|
case XFER_MW_DMA_2:
|
|
timing = 0x0103;
|
|
break;
|
|
case XFER_MW_DMA_1:
|
|
timing = 0x0203;
|
|
break;
|
|
case XFER_MW_DMA_0:
|
|
timing = 0x0808;
|
|
break;
|
|
case XFER_SW_DMA_2:
|
|
case XFER_SW_DMA_1:
|
|
case XFER_SW_DMA_0:
|
|
timing = 0x0f0f;
|
|
break;
|
|
case XFER_PIO_4:
|
|
timing = 0x0202;
|
|
break;
|
|
case XFER_PIO_3:
|
|
timing = 0x0204;
|
|
break;
|
|
case XFER_PIO_2:
|
|
timing = 0x0404;
|
|
break;
|
|
case XFER_PIO_1:
|
|
timing = 0x0508;
|
|
break;
|
|
case XFER_PIO_0:
|
|
timing = 0x0808;
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
triflex_timings &= ~(0xFFFF << (16 * unit));
|
|
triflex_timings |= (timing << (16 * unit));
|
|
|
|
pci_write_config_dword(dev, channel_offset, triflex_timings);
|
|
}
|
|
|
|
static void triflex_set_pio_mode(ide_drive_t *drive, const u8 pio)
|
|
{
|
|
triflex_set_mode(drive, XFER_PIO_0 + pio);
|
|
}
|
|
|
|
static void __devinit init_hwif_triflex(ide_hwif_t *hwif)
|
|
{
|
|
hwif->set_pio_mode = &triflex_set_pio_mode;
|
|
hwif->set_dma_mode = &triflex_set_mode;
|
|
|
|
if (hwif->dma_base == 0)
|
|
return;
|
|
|
|
hwif->atapi_dma = 1;
|
|
hwif->mwdma_mask = 0x07;
|
|
hwif->swdma_mask = 0x07;
|
|
}
|
|
|
|
static ide_pci_device_t triflex_device __devinitdata = {
|
|
.name = "TRIFLEX",
|
|
.init_hwif = init_hwif_triflex,
|
|
.autodma = AUTODMA,
|
|
.enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
|
|
.bootable = ON_BOARD,
|
|
.pio_mask = ATA_PIO4,
|
|
};
|
|
|
|
static int __devinit triflex_init_one(struct pci_dev *dev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
return ide_setup_pci_device(dev, &triflex_device);
|
|
}
|
|
|
|
static const struct pci_device_id triflex_pci_tbl[] = {
|
|
{ PCI_VDEVICE(COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE), 0 },
|
|
{ 0, },
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, triflex_pci_tbl);
|
|
|
|
static struct pci_driver driver = {
|
|
.name = "TRIFLEX_IDE",
|
|
.id_table = triflex_pci_tbl,
|
|
.probe = triflex_init_one,
|
|
};
|
|
|
|
static int __init triflex_ide_init(void)
|
|
{
|
|
return ide_pci_register_driver(&driver);
|
|
}
|
|
|
|
module_init(triflex_ide_init);
|
|
|
|
MODULE_AUTHOR("Torben Mathiasen");
|
|
MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|