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authorMichal Simek <michal.simek@xilinx.com>2013-08-27 10:49:00 +0200
committerMichal Simek <michal.simek@xilinx.com>2013-09-03 11:25:01 +0200
commitbcff661d38400c2c16d6dff65a94b1ed23d57564 (patch)
treea6824c3023223a7d208dcc0c4b57fff1738f2a64 /arch/microblaze
parent8a9e90a12816d0d26ccfb98cf6ac224a5a45d453 (diff)
microblaze: intc: Clean driver init function
- Use of_iomap - Use of_property_read_u32 - Fix printk Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/kernel/intc.c29
1 files changed, 19 insertions, 10 deletions
diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c
index 07be937b3d9a..3b441e255880 100644
--- a/arch/microblaze/kernel/intc.c
+++ b/arch/microblaze/kernel/intc.c
@@ -12,7 +12,7 @@
#include <linux/init.h>
#include <linux/irqdomain.h>
#include <linux/irq.h>
-#include <asm/page.h>
+#include <linux/of_address.h>
#include <linux/io.h>
#include <linux/bug.h>
@@ -20,7 +20,7 @@
#include <asm/irq.h>
#include "../../drivers/irqchip/irqchip.h"
-static unsigned int intc_baseaddr;
+static void __iomem *intc_baseaddr;
/* No one else should require these constants, so define them locally here. */
#define ISR 0x00 /* Interrupt Status Register */
@@ -120,19 +120,28 @@ static int __init xilinx_intc_of_init(struct device_node *intc,
struct device_node *parent)
{
u32 nr_irq, intr_mask;
+ int ret;
- intc_baseaddr = be32_to_cpup(of_get_property(intc, "reg", NULL));
- intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE);
- nr_irq = be32_to_cpup(of_get_property(intc,
- "xlnx,num-intr-inputs", NULL));
+ intc_baseaddr = of_iomap(intc, 0);
+ BUG_ON(!intc_baseaddr);
+
+ ret = of_property_read_u32(intc, "xlnx,num-intr-inputs", &nr_irq);
+ if (ret < 0) {
+ pr_err("%s: unable to read xlnx,num-intr-inputs\n", __func__);
+ return -EINVAL;
+ }
+
+ ret = of_property_read_u32(intc, "xlnx,kind-of-intr", &intr_mask);
+ if (ret < 0) {
+ pr_err("%s: unable to read xlnx,kind-of-intr\n", __func__);
+ return -EINVAL;
+ }
- intr_mask =
- be32_to_cpup(of_get_property(intc, "xlnx,kind-of-intr", NULL));
if (intr_mask > (u32)((1ULL << nr_irq) - 1))
pr_info(" ERROR: Mismatch in kind-of-intr param\n");
- pr_info("%s #0 at 0x%08x, num_irq=%d, edge=0x%x\n",
- intc->name, intc_baseaddr, nr_irq, intr_mask);
+ pr_info("%s: num_irq=%d, edge=0x%x\n",
+ intc->full_name, nr_irq, intr_mask);
/*
* Disable all external interrupts until they are