diff options
Diffstat (limited to 'drivers/ide/legacy/gayle.c')
| -rw-r--r-- | drivers/ide/legacy/gayle.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c deleted file mode 100644 index 3fac3e9ec47..00000000000 --- a/drivers/ide/legacy/gayle.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * linux/drivers/ide/legacy/gayle.c -- Amiga Gayle IDE Driver - * - * Created 9 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/config.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 <linux/zorro.h> - -#include <asm/setup.h> -#include <asm/amigahw.h> -#include <asm/amigaints.h> -#include <asm/amigayle.h> - - - /* - * Bases of the IDE interfaces - */ - -#define GAYLE_BASE_4000 0xdd2020 /* A4000/A4000T */ -#define GAYLE_BASE_1200 0xda0000 /* A1200/A600 and E-Matrix 530 */ - - /* - * Offsets from one of the above bases - */ - -#define GAYLE_DATA 0x00 -#define GAYLE_ERROR 0x06 /* see err-bits */ -#define GAYLE_NSECTOR 0x0a /* nr of sectors to read/write */ -#define GAYLE_SECTOR 0x0e /* starting sector */ -#define GAYLE_LCYL 0x12 /* starting cylinder */ -#define GAYLE_HCYL 0x16 /* high byte of starting cyl */ -#define GAYLE_SELECT 0x1a /* 101dhhhh , d=drive, hhhh=head */ -#define GAYLE_STATUS 0x1e /* see status-bits */ -#define GAYLE_CONTROL 0x101a - -static int gayle_offsets[IDE_NR_PORTS] __initdata = { - GAYLE_DATA, GAYLE_ERROR, GAYLE_NSECTOR, GAYLE_SECTOR, GAYLE_LCYL, - GAYLE_HCYL, GAYLE_SELECT, GAYLE_STATUS, -1, -1 -}; - - - /* - * These are at different offsets from the base - */ - -#define GAYLE_IRQ_4000 0xdd3020 /* MSB = 1, Harddisk is source of */ -#define GAYLE_IRQ_1200 0xda9000 /* interrupt */ - - - /* - * Offset of the secondary port for IDE doublers - * Note that GAYLE_CONTROL is NOT available then! - */ - -#define GAYLE_NEXT_PORT 0x1000 - -#ifndef CONFIG_BLK_DEV_IDEDOUBLER -#define GAYLE_NUM_HWIFS 1 -#define GAYLE_NUM_PROBE_HWIFS GAYLE_NUM_HWIFS -#define GAYLE_HAS_CONTROL_REG 1 -#define GAYLE_IDEREG_SIZE 0x2000 -#else /* CONFIG_BLK_DEV_IDEDOUBLER */ -#define GAYLE_NUM_HWIFS 2 -#define GAYLE_NUM_PROBE_HWIFS (ide_doubler ? GAYLE_NUM_HWIFS : \ - GAYLE_NUM_HWIFS-1) -#define GAYLE_HAS_CONTROL_REG (!ide_doubler) -#define GAYLE_IDEREG_SIZE (ide_doubler ? 0x1000 : 0x2000) -int ide_doubler = 0; /* support IDE doublers? */ -#endif /* CONFIG_BLK_DEV_IDEDOUBLER */ - - - /* - * Check and acknowledge the interrupt status - */ - -static int gayle_ack_intr_a4000(ide_hwif_t *hwif) -{ - unsigned char ch; - - ch = z_readb(hwif->io_ports[IDE_IRQ_OFFSET]); - if (!(ch & GAYLE_IRQ_IDE)) - return 0; - return 1; -} - -static int gayle_ack_intr_a1200(ide_hwif_t *hwif) -{ - unsigned char ch; - - ch = z_readb(hwif->io_ports[IDE_IRQ_OFFSET]); - if (!(ch & GAYLE_IRQ_IDE)) - return 0; - (void)z_readb(hwif->io_ports[IDE_STATUS_OFFSET]); - z_writeb(0x7c, hwif->io_ports[IDE_IRQ_OFFSET]); - return 1; -} - - /* - * Probe for a Gayle IDE interface (and optionally for an IDE doubler) - */ - -void __init gayle_init(void) -{ - int a4000, i; - - if (!MACH_IS_AMIGA) - return; - - if ((a4000 = AMIGAHW_PRESENT(A4000_IDE)) || AMIGAHW_PRESENT(A1200_IDE)) - goto found; - -#ifdef CONFIG_ZORRO - if (zorro_find_device(ZORRO_PROD_MTEC_VIPER_MK_V_E_MATRIX_530_SCSI_IDE, - NULL)) - goto found; -#endif - return; - -found: - for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++) { - unsigned long base, ctrlport, irqport; - ide_ack_intr_t *ack_intr; - hw_regs_t hw; - ide_hwif_t *hwif; - int index; - unsigned long phys_base, res_start, res_n; - - if (a4000) { - phys_base = GAYLE_BASE_4000; - irqport = (unsigned long)ZTWO_VADDR(GAYLE_IRQ_4000); - ack_intr = gayle_ack_intr_a4000; - } else { - phys_base = GAYLE_BASE_1200; - irqport = (unsigned long)ZTWO_VADDR(GAYLE_IRQ_1200); - ack_intr = gayle_ack_intr_a1200; - } -/* - * FIXME: we now have selectable modes between mmio v/s iomio - */ - - phys_base += i*GAYLE_NEXT_PORT; - - res_start = ((unsigned long)phys_base) & ~(GAYLE_NEXT_PORT-1); - res_n = GAYLE_IDEREG_SIZE; - - if (!request_mem_region(res_start, res_n, "IDE")) - continue; - - base = (unsigned long)ZTWO_VADDR(phys_base); - ctrlport = GAYLE_HAS_CONTROL_REG ? (base + GAYLE_CONTROL) : 0; - - ide_setup_ports(&hw, base, gayle_offsets, - ctrlport, irqport, ack_intr, -// &gayle_iops, - IRQ_AMIGA_PORTS); - - index = ide_register_hw(&hw, &hwif); - if (index != -1) { - hwif->mmio = 2; - switch (i) { - case 0: - printk("ide%d: Gayle IDE interface (A%d style)\n", index, - a4000 ? 4000 : 1200); - break; -#ifdef CONFIG_BLK_DEV_IDEDOUBLER - case 1: - printk("ide%d: IDE doubler\n", index); - break; -#endif /* CONFIG_BLK_DEV_IDEDOUBLER */ - } - } else - release_mem_region(res_start, res_n); - } -} |