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cb5528ab19
* Tell IDE layer to not manage resources by setting hwif->mmio flag and request resources in falconide_init(). * Use request_mem_region() for resources reservation. * Use driver name for resources reservation. v2: * Fix missing printk() parameter. (Noticed by Geert Uytterhoeven) Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michael Schmitz <schmitz@debian.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
105 lines
2.0 KiB
C
105 lines
2.0 KiB
C
/*
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* Atari Falcon IDE Driver
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*
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* Created 12 Jul 1997 by Geert Uytterhoeven
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/blkdev.h>
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#include <linux/hdreg.h>
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#include <linux/ide.h>
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#include <linux/init.h>
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#include <asm/setup.h>
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#include <asm/atarihw.h>
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#include <asm/atariints.h>
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#include <asm/atari_stdma.h>
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#define DRV_NAME "falconide"
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/*
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* Base of the IDE interface
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*/
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#define ATA_HD_BASE 0xfff00000
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/*
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* Offsets from the above base
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*/
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#define ATA_HD_CONTROL 0x39
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/*
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* falconide_intr_lock is used to obtain access to the IDE interrupt,
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* which is shared between several drivers.
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*/
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int falconide_intr_lock;
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EXPORT_SYMBOL(falconide_intr_lock);
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static void __init falconide_setup_ports(hw_regs_t *hw)
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{
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int i;
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memset(hw, 0, sizeof(*hw));
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hw->io_ports[IDE_DATA_OFFSET] = ATA_HD_BASE;
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for (i = 1; i < 8; i++)
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hw->io_ports[i] = ATA_HD_BASE + 1 + i * 4;
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hw->io_ports[IDE_CONTROL_OFFSET] = ATA_HD_BASE + ATA_HD_CONTROL;
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hw->irq = IRQ_MFP_IDE;
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hw->ack_intr = NULL;
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}
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/*
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* Probe for a Falcon IDE interface
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*/
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static int __init falconide_init(void)
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{
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hw_regs_t hw;
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ide_hwif_t *hwif;
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if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE))
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return 0;
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printk(KERN_INFO "ide: Falcon IDE controller\n");
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if (!request_mem_region(ATA_HD_BASE, 0x40, DRV_NAME)) {
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printk(KERN_ERR "%s: resources busy\n", DRV_NAME);
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return -EBUSY;
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}
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falconide_setup_ports(&hw);
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hwif = ide_find_port();
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if (hwif) {
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u8 index = hwif->index;
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u8 idx[4] = { index, 0xff, 0xff, 0xff };
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ide_init_port_data(hwif, index);
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ide_init_port_hw(hwif, &hw);
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hwif->mmio = 1;
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ide_get_lock(NULL, NULL);
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ide_device_add(idx, NULL);
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ide_release_lock();
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}
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return 0;
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}
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module_init(falconide_init);
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MODULE_LICENSE("GPL");
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