mirror of
https://github.com/torvalds/linux.git
synced 2024-11-19 18:41:48 +00:00
3dd89a9b2a
It is no longer needed to set hwif->mmio flag to tell IDE layer to not manage resources so cleanup host drivers that used hwif->mmio flag only for this purpose. Ditto for ide_legacy_init_one(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
104 lines
2.0 KiB
C
104 lines
2.0 KiB
C
/*
|
|
* Atari Falcon IDE Driver
|
|
*
|
|
* Created 12 Jul 1997 by Geert Uytterhoeven
|
|
*
|
|
* 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/module.h>
|
|
#include <linux/types.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/blkdev.h>
|
|
#include <linux/hdreg.h>
|
|
#include <linux/ide.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <asm/setup.h>
|
|
#include <asm/atarihw.h>
|
|
#include <asm/atariints.h>
|
|
#include <asm/atari_stdma.h>
|
|
|
|
#define DRV_NAME "falconide"
|
|
|
|
/*
|
|
* Base of the IDE interface
|
|
*/
|
|
|
|
#define ATA_HD_BASE 0xfff00000
|
|
|
|
/*
|
|
* Offsets from the above base
|
|
*/
|
|
|
|
#define ATA_HD_CONTROL 0x39
|
|
|
|
/*
|
|
* falconide_intr_lock is used to obtain access to the IDE interrupt,
|
|
* which is shared between several drivers.
|
|
*/
|
|
|
|
int falconide_intr_lock;
|
|
EXPORT_SYMBOL(falconide_intr_lock);
|
|
|
|
static void __init falconide_setup_ports(hw_regs_t *hw)
|
|
{
|
|
int i;
|
|
|
|
memset(hw, 0, sizeof(*hw));
|
|
|
|
hw->io_ports[IDE_DATA_OFFSET] = ATA_HD_BASE;
|
|
|
|
for (i = 1; i < 8; i++)
|
|
hw->io_ports[i] = ATA_HD_BASE + 1 + i * 4;
|
|
|
|
hw->io_ports[IDE_CONTROL_OFFSET] = ATA_HD_BASE + ATA_HD_CONTROL;
|
|
|
|
hw->irq = IRQ_MFP_IDE;
|
|
hw->ack_intr = NULL;
|
|
}
|
|
|
|
/*
|
|
* Probe for a Falcon IDE interface
|
|
*/
|
|
|
|
static int __init falconide_init(void)
|
|
{
|
|
hw_regs_t hw;
|
|
ide_hwif_t *hwif;
|
|
|
|
if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE))
|
|
return 0;
|
|
|
|
printk(KERN_INFO "ide: Falcon IDE controller\n");
|
|
|
|
if (!request_mem_region(ATA_HD_BASE, 0x40, DRV_NAME)) {
|
|
printk(KERN_ERR "%s: resources busy\n", DRV_NAME);
|
|
return -EBUSY;
|
|
}
|
|
|
|
falconide_setup_ports(&hw);
|
|
|
|
hwif = ide_find_port();
|
|
if (hwif) {
|
|
u8 index = hwif->index;
|
|
u8 idx[4] = { index, 0xff, 0xff, 0xff };
|
|
|
|
ide_init_port_data(hwif, index);
|
|
ide_init_port_hw(hwif, &hw);
|
|
|
|
ide_get_lock(NULL, NULL);
|
|
ide_device_add(idx, NULL);
|
|
ide_release_lock();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
module_init(falconide_init);
|
|
|
|
MODULE_LICENSE("GPL");
|