[ARM] rapide: use MMIO for IDE registers.

drivers/ide/arm/rapide.c

@@ -13,32 +13,91 @@
 
 #include <asm/ecard.h>
 
-static int __devinit
-rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
+/*
+ * Something like this really should be in generic code, but isn't.
+ */
+static ide_hwif_t *
+rapide_locate_hwif(void __iomem *base, void *ctrl, unsigned int sz, int irq)
 {
-	unsigned long port = ecard_address (ec, ECARD_MEMC, 0);
-	hw_regs_t hw;
-	int i, ret;
+	unsigned long port = (unsigned long)base;
+	ide_hwif_t *hwif;
+	int index, i;
+
+	for (index = 0; index < MAX_HWIFS; ++index) {
+		hwif = ide_hwifs + index;
+		if (hwif->io_ports[IDE_DATA_OFFSET] == port)
+			goto found;
+	}
+
+	for (index = 0; index < MAX_HWIFS; ++index) {
+		hwif = ide_hwifs + index;
+		if (hwif->io_ports[IDE_DATA_OFFSET] == 0)
+			goto found;
+	}
 
-	memset(&hw, 0, sizeof(hw));
+	return NULL;
 
+ found:
 	for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
-		hw.io_ports[i] = port;
-		port += 1 << 4;
+		hwif->hw.io_ports[i] = port;
+		hwif->io_ports[i] = port;
+		port += sz;
 	}
-	hw.io_ports[IDE_CONTROL_OFFSET] = port + 0x206;
-	hw.irq = ec->irq;
+	hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
+	hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl;
+	hwif->hw.irq = hwif->irq = irq;
+	hwif->mmio = 2;
+	default_hwif_mmiops(hwif);
+
+	return hwif;
+}
 
-	ret = ide_register_hw(&hw, NULL);
+static int __devinit
+rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
+{
+	ide_hwif_t *hwif;
+	void __iomem *base;
+	int ret;
 
+	ret = ecard_request_resources(ec);
 	if (ret)
-		ecard_release(ec);
+		goto out;
+
+	base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
+		       ecard_resource_len(ec, ECARD_RES_MEMC));
+	if (!base) {
+		ret = -ENOMEM;
+		goto release;
+	}
+
+	hwif = rapide_locate_hwif(base, base + 0x818, 1 << 6, ec->irq);
+	if (hwif) {
+		hwif->hwif_data = base;
+		hwif->gendev.parent = &ec->dev;
+		hwif->noprobe = 0;
+		probe_hwif_init(hwif);
+		create_proc_ide_interfaces();
+		ecard_set_drvdata(ec, hwif);
+		goto out;
+	}
+
+	iounmap(base);
+ release:
+	ecard_release_resources(ec);
+ out:
 	return ret;
 }
 
 static void __devexit rapide_remove(struct expansion_card *ec)
 {
-	/* need to do more */
+	ide_hwif_t *hwif = ecard_get_drvdata(ec);
+
+	ecard_set_drvdata(ec, NULL);
+
+	/* there must be a better way */
+	ide_unregister(hwif - ide_hwifs);
+	iounmap(hwif->hwif_data);
+	ecard_release_resources(ec);
 }
 
 static struct ecard_id rapide_ids[] = {