diff options
Diffstat (limited to 'drivers/ide/legacy/gayle.c')
| -rw-r--r-- | drivers/ide/legacy/gayle.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c deleted file mode 100644 index 691506886561..000000000000 --- a/drivers/ide/legacy/gayle.c +++ /dev/null @@ -1,190 +0,0 @@ -/* - * 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/types.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/blkdev.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <linux/zorro.h> -#include <linux/module.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 */ - -#define GAYLE_IDEREG_SIZE 0x2000 - - /* - * Offsets from one of the above bases - */ - -#define GAYLE_CONTROL 0x101a - - /* - * 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 -#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) - -static int ide_doubler; -module_param_named(doubler, ide_doubler, bool, 0); -MODULE_PARM_DESC(doubler, "enable support for 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.irq_addr); - 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.irq_addr); - if (!(ch & GAYLE_IRQ_IDE)) - return 0; - (void)z_readb(hwif->io_ports.status_addr); - z_writeb(0x7c, hwif->io_ports.irq_addr); - return 1; -} - -static void __init gayle_setup_ports(hw_regs_t *hw, unsigned long base, - unsigned long ctl, unsigned long irq_port, - ide_ack_intr_t *ack_intr) -{ - int i; - - memset(hw, 0, sizeof(*hw)); - - hw->io_ports.data_addr = base; - - for (i = 1; i < 8; i++) - hw->io_ports_array[i] = base + 2 + i * 4; - - hw->io_ports.ctl_addr = ctl; - hw->io_ports.irq_addr = irq_port; - - hw->irq = IRQ_AMIGA_PORTS; - hw->ack_intr = ack_intr; - - hw->chipset = ide_generic; -} - - /* - * Probe for a Gayle IDE interface (and optionally for an IDE doubler) - */ - -static int __init gayle_init(void) -{ - unsigned long phys_base, res_start, res_n; - unsigned long base, ctrlport, irqport; - ide_ack_intr_t *ack_intr; - int a4000, i, rc; - hw_regs_t hw[GAYLE_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL }; - - if (!MACH_IS_AMIGA) - return -ENODEV; - - 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 -ENODEV; - -found: - printk(KERN_INFO "ide: Gayle IDE controller (A%d style%s)\n", - a4000 ? 4000 : 1200, -#ifdef CONFIG_BLK_DEV_IDEDOUBLER - ide_doubler ? ", IDE doubler" : -#endif - ""); - - 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 - */ - - res_start = ((unsigned long)phys_base) & ~(GAYLE_NEXT_PORT-1); - res_n = GAYLE_IDEREG_SIZE; - - if (!request_mem_region(res_start, res_n, "IDE")) - return -EBUSY; - - for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++) { - base = (unsigned long)ZTWO_VADDR(phys_base + i * GAYLE_NEXT_PORT); - ctrlport = GAYLE_HAS_CONTROL_REG ? (base + GAYLE_CONTROL) : 0; - - gayle_setup_ports(&hw[i], base, ctrlport, irqport, ack_intr); - - hws[i] = &hw[i]; - } - - rc = ide_host_add(NULL, hws, NULL); - if (rc) - release_mem_region(res_start, res_n); - - return rc; -} - -module_init(gayle_init); - -MODULE_LICENSE("GPL"); |