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| author | Michal Simek <michal.simek@xilinx.com> | 2013-08-27 12:49:00 +0400 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2013-09-03 13:25:01 +0400 |
| commit | bcff661d38400c2c16d6dff65a94b1ed23d57564 (patch) | |
| tree | a6824c3023223a7d208dcc0c4b57fff1738f2a64 /arch/microblaze/kernel/intc.c | |
| parent | 8a9e90a12816d0d26ccfb98cf6ac224a5a45d453 (diff) | |
| download | linux-bcff661d38400c2c16d6dff65a94b1ed23d57564.tar.xz | |
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/kernel/intc.c')
| -rw-r--r-- | arch/microblaze/kernel/intc.c | 29 |
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 |