diff options
Diffstat (limited to 'drivers/ide/gayle.c')
| -rw-r--r-- | drivers/ide/gayle.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/drivers/ide/gayle.c b/drivers/ide/gayle.c deleted file mode 100644 index 901e6ebfeb96..000000000000 --- a/drivers/ide/gayle.c +++ /dev/null @@ -1,188 +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 <linux/platform_device.h> - -#include <asm/setup.h> -#include <asm/amigahw.h> -#include <asm/amigaints.h> -#include <asm/amigayle.h> - - - /* - * 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 - -#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 bool ide_doubler; -module_param_named(doubler, ide_doubler, bool, 0); -MODULE_PARM_DESC(doubler, "enable support for IDE doublers"); - - /* - * Check and acknowledge the interrupt status - */ - -static int gayle_test_irq(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 void gayle_a1200_clear_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - - (void)z_readb(hwif->io_ports.status_addr); - z_writeb(0x7c, hwif->io_ports.irq_addr); -} - -static void __init gayle_setup_ports(struct ide_hw *hw, unsigned long base, - unsigned long ctl, unsigned long irq_port) -{ - 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; -} - -static const struct ide_port_ops gayle_a4000_port_ops = { - .test_irq = gayle_test_irq, -}; - -static const struct ide_port_ops gayle_a1200_port_ops = { - .clear_irq = gayle_a1200_clear_irq, - .test_irq = gayle_test_irq, -}; - -static const struct ide_port_info gayle_port_info = { - .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE | - IDE_HFLAG_NO_DMA, - .irq_flags = IRQF_SHARED, - .chipset = ide_generic, -}; - - /* - * Probe for a Gayle IDE interface (and optionally for an IDE doubler) - */ - -static int __init amiga_gayle_ide_probe(struct platform_device *pdev) -{ - struct resource *res; - struct gayle_ide_platform_data *pdata; - unsigned long base, ctrlport, irqport; - unsigned int i; - int error; - struct ide_hw hw[GAYLE_NUM_HWIFS], *hws[GAYLE_NUM_HWIFS]; - struct ide_port_info d = gayle_port_info; - struct ide_host *host; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - - if (!request_mem_region(res->start, resource_size(res), "IDE")) - return -EBUSY; - - pdata = dev_get_platdata(&pdev->dev); - pr_info("ide: Gayle IDE controller (A%u style%s)\n", - pdata->explicit_ack ? 1200 : 4000, - ide_doubler ? ", IDE doubler" : ""); - - base = (unsigned long)ZTWO_VADDR(pdata->base); - ctrlport = 0; - irqport = (unsigned long)ZTWO_VADDR(pdata->irqport); - if (pdata->explicit_ack) - d.port_ops = &gayle_a1200_port_ops; - else - d.port_ops = &gayle_a4000_port_ops; - - for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++, base += GAYLE_NEXT_PORT) { - if (GAYLE_HAS_CONTROL_REG) - ctrlport = base + GAYLE_CONTROL; - - gayle_setup_ports(&hw[i], base, ctrlport, irqport); - hws[i] = &hw[i]; - } - - error = ide_host_add(&d, hws, i, &host); - if (error) - goto out; - - platform_set_drvdata(pdev, host); - return 0; - -out: - release_mem_region(res->start, resource_size(res)); - return error; -} - -static int __exit amiga_gayle_ide_remove(struct platform_device *pdev) -{ - struct ide_host *host = platform_get_drvdata(pdev); - struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - - ide_host_remove(host); - release_mem_region(res->start, resource_size(res)); - return 0; -} - -static struct platform_driver amiga_gayle_ide_driver = { - .remove = __exit_p(amiga_gayle_ide_remove), - .driver = { - .name = "amiga-gayle-ide", - }, -}; - -module_platform_driver_probe(amiga_gayle_ide_driver, amiga_gayle_ide_probe); - -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:amiga-gayle-ide"); |