diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-dove/irq.c')
-rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-dove/irq.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-dove/irq.c b/ANDROID_3.4.5/arch/arm/mach-dove/irq.c deleted file mode 100644 index f07fd16e..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-dove/irq.c +++ /dev/null @@ -1,129 +0,0 @@ -/* - * arch/arm/mach-dove/irq.c - * - * Dove IRQ handling. - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/irq.h> -#include <linux/gpio.h> -#include <linux/io.h> -#include <asm/mach/arch.h> -#include <plat/irq.h> -#include <asm/mach/irq.h> -#include <mach/pm.h> -#include <mach/bridge-regs.h> -#include "common.h" - -static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - int irqoff; - BUG_ON(irq < IRQ_DOVE_GPIO_0_7 || irq > IRQ_DOVE_HIGH_GPIO); - - irqoff = irq <= IRQ_DOVE_GPIO_16_23 ? irq - IRQ_DOVE_GPIO_0_7 : - 3 + irq - IRQ_DOVE_GPIO_24_31; - - orion_gpio_irq_handler(irqoff << 3); - if (irq == IRQ_DOVE_HIGH_GPIO) { - orion_gpio_irq_handler(40); - orion_gpio_irq_handler(48); - orion_gpio_irq_handler(56); - } -} - -static void pmu_irq_mask(struct irq_data *d) -{ - int pin = irq_to_pmu(d->irq); - u32 u; - - u = readl(PMU_INTERRUPT_MASK); - u &= ~(1 << (pin & 31)); - writel(u, PMU_INTERRUPT_MASK); -} - -static void pmu_irq_unmask(struct irq_data *d) -{ - int pin = irq_to_pmu(d->irq); - u32 u; - - u = readl(PMU_INTERRUPT_MASK); - u |= 1 << (pin & 31); - writel(u, PMU_INTERRUPT_MASK); -} - -static void pmu_irq_ack(struct irq_data *d) -{ - int pin = irq_to_pmu(d->irq); - u32 u; - - u = ~(1 << (pin & 31)); - writel(u, PMU_INTERRUPT_CAUSE); -} - -static struct irq_chip pmu_irq_chip = { - .name = "pmu_irq", - .irq_mask = pmu_irq_mask, - .irq_unmask = pmu_irq_unmask, - .irq_ack = pmu_irq_ack, -}; - -static void pmu_irq_handler(unsigned int irq, struct irq_desc *desc) -{ - unsigned long cause = readl(PMU_INTERRUPT_CAUSE); - - cause &= readl(PMU_INTERRUPT_MASK); - if (cause == 0) { - do_bad_IRQ(irq, desc); - return; - } - - for (irq = 0; irq < NR_PMU_IRQS; irq++) { - if (!(cause & (1 << irq))) - continue; - irq = pmu_to_irq(irq); - generic_handle_irq(irq); - } -} - -void __init dove_init_irq(void) -{ - int i; - - orion_irq_init(0, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF)); - orion_irq_init(32, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF)); - - /* - * Initialize gpiolib for GPIOs 0-71. - */ - orion_gpio_init(0, 32, DOVE_GPIO_LO_VIRT_BASE, 0, - IRQ_DOVE_GPIO_START); - irq_set_chained_handler(IRQ_DOVE_GPIO_0_7, gpio_irq_handler); - irq_set_chained_handler(IRQ_DOVE_GPIO_8_15, gpio_irq_handler); - irq_set_chained_handler(IRQ_DOVE_GPIO_16_23, gpio_irq_handler); - irq_set_chained_handler(IRQ_DOVE_GPIO_24_31, gpio_irq_handler); - - orion_gpio_init(32, 32, DOVE_GPIO_HI_VIRT_BASE, 0, - IRQ_DOVE_GPIO_START + 32); - irq_set_chained_handler(IRQ_DOVE_HIGH_GPIO, gpio_irq_handler); - - orion_gpio_init(64, 8, DOVE_GPIO2_VIRT_BASE, 0, - IRQ_DOVE_GPIO_START + 64); - - /* - * Mask and clear PMU interrupts - */ - writel(0, PMU_INTERRUPT_MASK); - writel(0, PMU_INTERRUPT_CAUSE); - - for (i = IRQ_DOVE_PMU_START; i < NR_IRQS; i++) { - irq_set_chip_and_handler(i, &pmu_irq_chip, handle_level_irq); - irq_set_status_flags(i, IRQ_LEVEL); - set_irq_flags(i, IRQF_VALID); - } - irq_set_chained_handler(IRQ_DOVE_PMU, pmu_irq_handler); -} |