#include <asm/mach-ar71xx/ar71xx.h>
-static int ip2_flush_reg;
-
static void ar71xx_gpio_irq_dispatch(void)
{
void __iomem *base = ar71xx_gpio_base;
spurious_interrupt();
}
-static void ar71xx_gpio_irq_unmask(unsigned int irq)
+static void ar71xx_gpio_irq_unmask(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_GPIO_IRQ_BASE;
void __iomem *base = ar71xx_gpio_base;
u32 t;
- irq -= AR71XX_GPIO_IRQ_BASE;
-
t = __raw_readl(base + GPIO_REG_INT_ENABLE);
__raw_writel(t | (1 << irq), base + GPIO_REG_INT_ENABLE);
(void) __raw_readl(base + GPIO_REG_INT_ENABLE);
}
-static void ar71xx_gpio_irq_mask(unsigned int irq)
+static void ar71xx_gpio_irq_mask(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_GPIO_IRQ_BASE;
void __iomem *base = ar71xx_gpio_base;
u32 t;
- irq -= AR71XX_GPIO_IRQ_BASE;
-
t = __raw_readl(base + GPIO_REG_INT_ENABLE);
__raw_writel(t & ~(1 << irq), base + GPIO_REG_INT_ENABLE);
(void) __raw_readl(base + GPIO_REG_INT_ENABLE);
}
-#if 0
-static int ar71xx_gpio_irq_set_type(unsigned int irq, unsigned int flow_type)
-{
- /* TODO: implement */
- return 0;
-}
-#else
-#define ar71xx_gpio_irq_set_type NULL
-#endif
-
static struct irq_chip ar71xx_gpio_irq_chip = {
.name = "AR71XX GPIO",
- .unmask = ar71xx_gpio_irq_unmask,
- .mask = ar71xx_gpio_irq_mask,
- .mask_ack = ar71xx_gpio_irq_mask,
- .set_type = ar71xx_gpio_irq_set_type,
+ .irq_unmask = ar71xx_gpio_irq_unmask,
+ .irq_mask = ar71xx_gpio_irq_mask,
+ .irq_mask_ack = ar71xx_gpio_irq_mask,
};
static struct irqaction ar71xx_gpio_irqaction = {
for (i = AR71XX_GPIO_IRQ_BASE;
i < AR71XX_GPIO_IRQ_BASE + AR71XX_GPIO_IRQ_COUNT; i++)
- set_irq_chip_and_handler(i, &ar71xx_gpio_irq_chip,
+ irq_set_chip_and_handler(i, &ar71xx_gpio_irq_chip,
handle_level_irq);
setup_irq(AR71XX_MISC_IRQ_GPIO, &ar71xx_gpio_irqaction);
spurious_interrupt();
}
-static void ar71xx_misc_irq_unmask(unsigned int irq)
+static void ar71xx_misc_irq_unmask(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_MISC_IRQ_BASE;
void __iomem *base = ar71xx_reset_base;
u32 t;
- irq -= AR71XX_MISC_IRQ_BASE;
-
t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
__raw_writel(t | (1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE);
(void) __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
}
-static void ar71xx_misc_irq_mask(unsigned int irq)
+static void ar71xx_misc_irq_mask(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_MISC_IRQ_BASE;
void __iomem *base = ar71xx_reset_base;
u32 t;
- irq -= AR71XX_MISC_IRQ_BASE;
-
t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
__raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_ENABLE);
(void) __raw_readl(base + AR71XX_RESET_REG_MISC_INT_ENABLE);
}
-static void ar724x_misc_irq_ack(unsigned int irq)
+static void ar724x_misc_irq_ack(struct irq_data *d)
{
+ unsigned int irq = d->irq - AR71XX_MISC_IRQ_BASE;
void __iomem *base = ar71xx_reset_base;
u32 t;
- irq -= AR71XX_MISC_IRQ_BASE;
-
t = __raw_readl(base + AR71XX_RESET_REG_MISC_INT_STATUS);
__raw_writel(t & ~(1 << irq), base + AR71XX_RESET_REG_MISC_INT_STATUS);
static struct irq_chip ar71xx_misc_irq_chip = {
.name = "AR71XX MISC",
- .unmask = ar71xx_misc_irq_unmask,
- .mask = ar71xx_misc_irq_mask,
+ .irq_unmask = ar71xx_misc_irq_unmask,
+ .irq_mask = ar71xx_misc_irq_mask,
};
static struct irqaction ar71xx_misc_irqaction = {
case AR71XX_SOC_AR9341:
case AR71XX_SOC_AR9342:
case AR71XX_SOC_AR9344:
- ar71xx_misc_irq_chip.ack = ar724x_misc_irq_ack;
+ ar71xx_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
break;
default:
- ar71xx_misc_irq_chip.mask_ack = ar71xx_misc_irq_mask;
+ ar71xx_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask;
break;
}
for (i = AR71XX_MISC_IRQ_BASE;
i < AR71XX_MISC_IRQ_BASE + AR71XX_MISC_IRQ_COUNT; i++)
- set_irq_chip_and_handler(i, &ar71xx_misc_irq_chip,
+ irq_set_chip_and_handler(i, &ar71xx_misc_irq_chip,
handle_level_irq);
setup_irq(AR71XX_CPU_IRQ_MISC, &ar71xx_misc_irqaction);
}
+/*
+ * The IP2/IP3 lines are tied to a PCI/WMAC/USB device. Drivers for
+ * these devices typically allocate coherent DMA memory, however the
+ * DMA controller may still have some unsynchronized data in the FIFO.
+ * Issue a flush in the handlers to ensure that the driver sees
+ * the update.
+ */
+static void ar71xx_ip2_handler(void)
+{
+ ar71xx_ddr_flush(AR71XX_DDR_REG_FLUSH_PCI);
+ do_IRQ(AR71XX_CPU_IRQ_IP2);
+}
+
+static void ar724x_ip2_handler(void)
+{
+ ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_PCIE);
+ do_IRQ(AR71XX_CPU_IRQ_IP2);
+}
+
+static void ar913x_ip2_handler(void)
+{
+ ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_WMAC);
+ do_IRQ(AR71XX_CPU_IRQ_IP2);
+}
+
+static void ar933x_ip2_handler(void)
+{
+ ar71xx_ddr_flush(AR933X_DDR_REG_FLUSH_WMAC);
+ do_IRQ(AR71XX_CPU_IRQ_IP2);
+}
+
+static void ar934x_ip2_handler(void)
+{
+ ar71xx_ddr_flush(AR934X_DDR_REG_FLUSH_PCIE);
+ do_IRQ(AR71XX_CPU_IRQ_IP2);
+}
+
+static void ar71xx_ip3_handler(void)
+{
+ ar71xx_ddr_flush(AR71XX_DDR_REG_FLUSH_USB);
+ do_IRQ(AR71XX_CPU_IRQ_USB);
+}
+
+static void ar724x_ip3_handler(void)
+{
+ ar71xx_ddr_flush(AR724X_DDR_REG_FLUSH_USB);
+ do_IRQ(AR71XX_CPU_IRQ_USB);
+}
+
+static void ar913x_ip3_handler(void)
+{
+ ar71xx_ddr_flush(AR91XX_DDR_REG_FLUSH_USB);
+ do_IRQ(AR71XX_CPU_IRQ_USB);
+}
+
+static void ar933x_ip3_handler(void)
+{
+ ar71xx_ddr_flush(AR933X_DDR_REG_FLUSH_USB);
+ do_IRQ(AR71XX_CPU_IRQ_USB);
+}
+
+static void ar934x_ip3_handler(void)
+{
+ do_IRQ(AR71XX_CPU_IRQ_USB);
+}
+
+static void (*ip2_handler)(void);
+static void (*ip3_handler)(void);
+
asmlinkage void plat_irq_dispatch(void)
{
unsigned long pending;
if (pending & STATUSF_IP7)
do_IRQ(AR71XX_CPU_IRQ_TIMER);
- else if (pending & STATUSF_IP2) {
- /*
- * This IRQ is meant for a PCI device. Drivers for PCI devices
- * typically allocate coherent DMA memory for the descriptor
- * ring, however the DMA controller may still have some
- * unsynchronized data in the FIFO.
- * Issue a flush here to ensure that the driver sees the update.
- */
- ar71xx_ddr_flush(ip2_flush_reg);
- do_IRQ(AR71XX_CPU_IRQ_IP2);
- }
+ else if (pending & STATUSF_IP2)
+ ip2_handler();
else if (pending & STATUSF_IP4)
do_IRQ(AR71XX_CPU_IRQ_GE0);
do_IRQ(AR71XX_CPU_IRQ_GE1);
else if (pending & STATUSF_IP3)
- do_IRQ(AR71XX_CPU_IRQ_USB);
+ ip3_handler();
else if (pending & STATUSF_IP6)
ar71xx_misc_irq_dispatch();
case AR71XX_SOC_AR7130:
case AR71XX_SOC_AR7141:
case AR71XX_SOC_AR7161:
- ip2_flush_reg = AR71XX_DDR_REG_FLUSH_PCI;
+ ip2_handler = ar71xx_ip2_handler;
+ ip3_handler = ar71xx_ip3_handler;
break;
case AR71XX_SOC_AR7240:
case AR71XX_SOC_AR7241:
case AR71XX_SOC_AR7242:
- ip2_flush_reg = AR724X_DDR_REG_FLUSH_PCIE;
+ ip2_handler = ar724x_ip2_handler;
+ ip3_handler = ar724x_ip3_handler;
break;
case AR71XX_SOC_AR9130:
case AR71XX_SOC_AR9132:
- ip2_flush_reg = AR91XX_DDR_REG_FLUSH_WMAC;
+ ip2_handler = ar913x_ip2_handler;
+ ip3_handler = ar913x_ip3_handler;
break;
case AR71XX_SOC_AR9330:
case AR71XX_SOC_AR9331:
- ip2_flush_reg = AR933X_DDR_REG_FLUSH_WMAC;
+ ip2_handler = ar933x_ip2_handler;
+ ip3_handler = ar933x_ip3_handler;
break;
case AR71XX_SOC_AR9341:
case AR71XX_SOC_AR9342:
case AR71XX_SOC_AR9344:
- ip2_flush_reg = AR934X_DDR_REG_FLUSH_PCIE;
+ ip2_handler = ar934x_ip2_handler;
+ ip3_handler = ar934x_ip3_handler;
break;
default:
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