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path: root/drivers/ide/gayle.c
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Diffstat (limited to 'drivers/ide/gayle.c')
-rw-r--r--drivers/ide/gayle.c166
1 files changed, 86 insertions, 80 deletions
diff --git a/drivers/ide/gayle.c b/drivers/ide/gayle.c
index c7119516c5a..97a2f9dc75d 100644
--- a/drivers/ide/gayle.c
+++ b/drivers/ide/gayle.c
@@ -16,6 +16,7 @@
#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>
@@ -24,15 +25,6 @@
/*
- * 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
*/
@@ -58,7 +50,7 @@
GAYLE_NUM_HWIFS-1)
#define GAYLE_HAS_CONTROL_REG (!ide_doubler)
-static int ide_doubler;
+static bool ide_doubler;
module_param_named(doubler, ide_doubler, bool, 0);
MODULE_PARM_DESC(doubler, "enable support for IDE doublers");
@@ -66,31 +58,26 @@ MODULE_PARM_DESC(doubler, "enable support for IDE doublers");
* Check and acknowledge the interrupt status
*/
-static int gayle_ack_intr_a4000(ide_hwif_t *hwif)
+static int gayle_test_irq(ide_hwif_t *hwif)
{
- unsigned char ch;
+ unsigned char ch;
- ch = z_readb(hwif->io_ports.irq_addr);
- if (!(ch & GAYLE_IRQ_IDE))
- return 0;
- return 1;
+ 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)
+static void gayle_a1200_clear_irq(ide_drive_t *drive)
{
- unsigned char ch;
+ ide_hwif_t *hwif = drive->hwif;
- 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;
+ (void)z_readb(hwif->io_ports.status_addr);
+ z_writeb(0x7c, hwif->io_ports.irq_addr);
}
-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)
+static void __init gayle_setup_ports(struct ide_hw *hw, unsigned long base,
+ unsigned long ctl, unsigned long irq_port)
{
int i;
@@ -105,79 +92,98 @@ static void __init gayle_setup_ports(hw_regs_t *hw, unsigned long base,
hw->io_ports.irq_addr = irq_port;
hw->irq = IRQ_AMIGA_PORTS;
- hw->ack_intr = ack_intr;
-
- hw->chipset = ide_generic;
}
+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 gayle_init(void)
+static int __init amiga_gayle_ide_probe(struct platform_device *pdev)
{
- 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,
- ide_doubler ? ", IDE doubler" : "");
-
- 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;
- }
-
- res_start = ((unsigned long)phys_base) & ~(GAYLE_NEXT_PORT-1);
- res_n = GAYLE_IDEREG_SIZE;
-
- if (!request_mem_region(res_start, res_n, "IDE"))
+ 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;
- 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;
+ 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];
+ }
- gayle_setup_ports(&hw[i], base, ctrlport, irqport, ack_intr);
+ error = ide_host_add(&d, hws, i, &host);
+ if (error)
+ goto out;
- hws[i] = &hw[i];
- }
+ platform_set_drvdata(pdev, host);
+ return 0;
- rc = ide_host_add(&gayle_port_info, hws, NULL);
- if (rc)
- release_mem_region(res_start, res_n);
+out:
+ release_mem_region(res->start, resource_size(res));
+ return error;
+}
- return rc;
+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;
}
-module_init(gayle_init);
+static struct platform_driver amiga_gayle_ide_driver = {
+ .remove = __exit_p(amiga_gayle_ide_remove),
+ .driver = {
+ .name = "amiga-gayle-ide",
+ .owner = THIS_MODULE,
+ },
+};
+
+module_platform_driver_probe(amiga_gayle_ide_driver, amiga_gayle_ide_probe);
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:amiga-gayle-ide");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 10:38:01 +0000