[ARM] 4437/1: PXA: move the GPIO IRQ initialization code to pxa_init_irq_gpio()

[karo-tx-linux.git] / arch / arm / mach-pxa / irq.c

diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c
index 4619d5fe606c2bad027ee2bf023f6c045d3ab882..256f8d2b3d9bc532ab4611af3980339f9bdbe6b2 100644 (file)
--- a/arch/arm/mach-pxa/irq.c
+++ b/arch/arm/mach-pxa/irq.c
@@ -30,12 +30,12 @@
 
 static void pxa_mask_low_irq(unsigned int irq)
 {
-       ICMR &= ~(1 << (irq + PXA_IRQ_SKIP));
+       ICMR &= ~(1 << irq);
 }
 
 static void pxa_unmask_low_irq(unsigned int irq)
 {
-       ICMR |= (1 << (irq + PXA_IRQ_SKIP));
+       ICMR |= (1 << irq);
 }
 
 static int pxa_set_wake(unsigned int irq, unsigned int on)
@@ -67,7 +67,27 @@ static struct irq_chip pxa_internal_chip_low = {
        .set_wake       = pxa_set_wake,
 };
 
-#if PXA_INTERNAL_IRQS > 32
+void __init pxa_init_irq_low(void)
+{
+       int irq;
+
+       /* disable all IRQs */
+       ICMR = 0;
+
+       /* all IRQs are IRQ, not FIQ */
+       ICLR = 0;
+
+       /* only unmasked interrupts kick us out of idle */
+       ICCR = 1;
+
+       for (irq = PXA_IRQ(0); irq <= PXA_IRQ(31); irq++) {
+               set_irq_chip(irq, &pxa_internal_chip_low);
+               set_irq_handler(irq, handle_level_irq);
+               set_irq_flags(irq, IRQF_VALID);
+       }
+}
+
+#ifdef CONFIG_PXA27x
 
 /*
  * This is for the second set of internal IRQs as found on the PXA27x.
@@ -75,12 +95,12 @@ static struct irq_chip pxa_internal_chip_low = {
 
 static void pxa_mask_high_irq(unsigned int irq)
 {
-       ICMR2 &= ~(1 << (irq - 32 + PXA_IRQ_SKIP));
+       ICMR2 &= ~(1 << (irq - 32));
 }
 
 static void pxa_unmask_high_irq(unsigned int irq)
 {
-       ICMR2 |= (1 << (irq - 32 + PXA_IRQ_SKIP));
+       ICMR2 |= (1 << (irq - 32));
 }
 
 static struct irq_chip pxa_internal_chip_high = {
@@ -90,6 +110,19 @@ static struct irq_chip pxa_internal_chip_high = {
        .unmask         = pxa_unmask_high_irq,
 };
 
+void __init pxa_init_irq_high(void)
+{
+       int irq;
+
+       ICMR2 = 0;
+       ICLR2 = 0;
+
+       for (irq = PXA_IRQ(32); irq < PXA_IRQ(64); irq++) {
+               set_irq_chip(irq, &pxa_internal_chip_high);
+               set_irq_handler(irq, handle_level_irq);
+               set_irq_flags(irq, IRQF_VALID);
+       }
+}
 #endif
 
 /* Note that if an input/irq line ever gets changed to an output during
@@ -314,64 +347,27 @@ static struct irq_chip pxa_muxed_gpio_chip = {
        .set_wake       = pxa_set_gpio_wake,
 };
 
-
-void __init pxa_init_irq(void)
+void __init pxa_init_irq_gpio(int gpio_nr)
 {
-       int irq;
-
-       /* disable all IRQs */
-       ICMR = 0;
-
-       /* all IRQs are IRQ, not FIQ */
-       ICLR = 0;
+       int irq, i;
 
        /* clear all GPIO edge detects */
-       GFER0 = 0;
-       GFER1 = 0;
-       GFER2 = 0;
-       GRER0 = 0;
-       GRER1 = 0;
-       GRER2 = 0;
-       GEDR0 = GEDR0;
-       GEDR1 = GEDR1;
-       GEDR2 = GEDR2;
-
-#ifdef CONFIG_PXA27x
-       /* And similarly for the extra regs on the PXA27x */
-       ICMR2 = 0;
-       ICLR2 = 0;
-       GFER3 = 0;
-       GRER3 = 0;
-       GEDR3 = GEDR3;
-#endif
-
-       /* only unmasked interrupts kick us out of idle */
-       ICCR = 1;
+       for (i = 0; i < gpio_nr; i += 32) {
+               GFER(i) = 0;
+               GRER(i) = 0;
+               GEDR(i) = GEDR(i);
+       }
 
        /* GPIO 0 and 1 must have their mask bit always set */
        GPIO_IRQ_mask[0] = 3;
 
-       for (irq = PXA_IRQ(PXA_IRQ_SKIP); irq <= PXA_IRQ(31); irq++) {
-               set_irq_chip(irq, &pxa_internal_chip_low);
-               set_irq_handler(irq, handle_level_irq);
-               set_irq_flags(irq, IRQF_VALID);
-       }
-
-#if PXA_INTERNAL_IRQS > 32
-       for (irq = PXA_IRQ(32); irq < PXA_IRQ(PXA_INTERNAL_IRQS); irq++) {
-               set_irq_chip(irq, &pxa_internal_chip_high);
-               set_irq_handler(irq, handle_level_irq);
-               set_irq_flags(irq, IRQF_VALID);
-       }
-#endif
-
        for (irq = IRQ_GPIO0; irq <= IRQ_GPIO1; irq++) {
                set_irq_chip(irq, &pxa_low_gpio_chip);
                set_irq_handler(irq, handle_edge_irq);
                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
        }
 
-       for (irq = IRQ_GPIO(2); irq <= IRQ_GPIO(PXA_LAST_GPIO); irq++) {
+       for (irq = IRQ_GPIO(2); irq <= IRQ_GPIO(gpio_nr); irq++) {
                set_irq_chip(irq, &pxa_muxed_gpio_chip);
                set_irq_handler(irq, handle_edge_irq);
                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
@@ -381,3 +377,12 @@ void __init pxa_init_irq(void)
        set_irq_chip(IRQ_GPIO_2_x, &pxa_internal_chip_low);
        set_irq_chained_handler(IRQ_GPIO_2_x, pxa_gpio_demux_handler);
 }
+
+void __init pxa_init_irq(void)
+{
+       pxa_init_irq_low();
+#ifdef CONFIG_PXA27x
+       pxa_init_irq_high();
+#endif
+       pxa_init_irq_gpio(PXA_LAST_GPIO + 1);
+}