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Diffstat (limited to 'arch/arm/plat-mxc/irq.c')
-rw-r--r--arch/arm/plat-mxc/irq.c36
1 files changed, 23 insertions, 13 deletions
diff --git a/arch/arm/plat-mxc/irq.c b/arch/arm/plat-mxc/irq.c
index 1053b666c676..d862c9e5f8db 100644
--- a/arch/arm/plat-mxc/irq.c
+++ b/arch/arm/plat-mxc/irq.c
@@ -18,7 +18,7 @@
*/
#include <linux/irq.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include <mach/common.h>
#define AVIC_BASE IO_ADDRESS(AVIC_BASE_ADDR)
@@ -30,14 +30,7 @@
#define AVIC_INTENABLEL (AVIC_BASE + 0x14) /* int enable reg low */
#define AVIC_INTTYPEH (AVIC_BASE + 0x18) /* int type reg high */
#define AVIC_INTTYPEL (AVIC_BASE + 0x1C) /* int type reg low */
-#define AVIC_NIPRIORITY7 (AVIC_BASE + 0x20) /* norm int priority lvl7 */
-#define AVIC_NIPRIORITY6 (AVIC_BASE + 0x24) /* norm int priority lvl6 */
-#define AVIC_NIPRIORITY5 (AVIC_BASE + 0x28) /* norm int priority lvl5 */
-#define AVIC_NIPRIORITY4 (AVIC_BASE + 0x2C) /* norm int priority lvl4 */
-#define AVIC_NIPRIORITY3 (AVIC_BASE + 0x30) /* norm int priority lvl3 */
-#define AVIC_NIPRIORITY2 (AVIC_BASE + 0x34) /* norm int priority lvl2 */
-#define AVIC_NIPRIORITY1 (AVIC_BASE + 0x38) /* norm int priority lvl1 */
-#define AVIC_NIPRIORITY0 (AVIC_BASE + 0x3C) /* norm int priority lvl0 */
+#define AVIC_NIPRIORITY(x) (AVIC_BASE + (0x20 + 4 * (7 - (x)))) /* int priority */
#define AVIC_NIVECSR (AVIC_BASE + 0x40) /* norm int vector/status */
#define AVIC_FIVECSR (AVIC_BASE + 0x44) /* fast int vector/status */
#define AVIC_INTSRCH (AVIC_BASE + 0x48) /* int source reg high */
@@ -54,6 +47,24 @@
#define IIM_PROD_REV_SH 3
#define IIM_PROD_REV_LEN 5
+#ifdef CONFIG_MXC_IRQ_PRIOR
+void imx_irq_set_priority(unsigned char irq, unsigned char prio)
+{
+ unsigned int temp;
+ unsigned int mask = 0x0F << irq % 8 * 4;
+
+ if (irq > 63)
+ return;
+
+ temp = __raw_readl(AVIC_NIPRIORITY(irq / 8));
+ temp &= ~mask;
+ temp |= prio & mask;
+
+ __raw_writel(temp, AVIC_NIPRIORITY(irq / 8));
+}
+EXPORT_SYMBOL(imx_irq_set_priority);
+#endif
+
/* Disable interrupt number "irq" in the AVIC */
static void mxc_mask_irq(unsigned int irq)
{
@@ -101,10 +112,9 @@ void __init mxc_init_irq(void)
set_irq_flags(i, IRQF_VALID);
}
- /* Set WDOG2's interrupt the highest priority level (bit 28-31) */
- reg = __raw_readl(AVIC_NIPRIORITY6);
- reg |= (0xF << 28);
- __raw_writel(reg, AVIC_NIPRIORITY6);
+ /* Set default priority value (0) for all IRQ's */
+ for (i = 0; i < 8; i++)
+ __raw_writel(0, AVIC_NIPRIORITY(i));
/* init architectures chained interrupt handler */
mxc_register_gpios();