IDE: palm_bk3710: use ioremap instead of arch-specific IO_ADDRESS()

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
[bart: minor CodingStyle fixup per Sergei's suggestion]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/palm_bk3710.c

@@ -347,7 +347,7 @@ static int __init palm_bk3710_probe(struct platform_device *pdev)
 	struct clk *clk;
 	struct resource *mem, *irq;
 	void __iomem *base;
-	unsigned long rate;
+	unsigned long rate, mem_size;
 	int i, rc;
 	hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
 
@@ -374,13 +374,18 @@ static int __init palm_bk3710_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	if (request_mem_region(mem->start, mem->end - mem->start + 1,
-			       "palm_bk3710") == NULL) {
+	mem_size = mem->end - mem->start + 1;
+	if (request_mem_region(mem->start, mem_size, "palm_bk3710") == NULL) {
 		printk(KERN_ERR "failed to request memory region\n");
 		return -EBUSY;
 	}
 
-	base = IO_ADDRESS(mem->start);
+	base = ioremap(mem->start, mem_size);
+	if (!base) {
+		printk(KERN_ERR "failed to map IO memory\n");
+		release_mem_region(mem->start, mem_size);
+		return -ENOMEM;
+	}
 
 	/* Configure the Palm Chip controller */
 	palm_bk3710_chipinit(base);