diff options
Diffstat (limited to 'arch/arm/mach-omap2/irq.c')
| -rw-r--r-- | arch/arm/mach-omap2/irq.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c index bcd83db41bb..35b8590c322 100644 --- a/arch/arm/mach-omap2/irq.c +++ b/arch/arm/mach-omap2/irq.c @@ -23,8 +23,7 @@ #include <linux/of_address.h> #include <linux/of_irq.h> -#include <mach/hardware.h> - +#include "soc.h" #include "iomap.h" #include "common.h" @@ -49,6 +48,8 @@ #define OMAP3_IRQ_BASE OMAP2_L4_IO_ADDRESS(OMAP34XX_IC_BASE) #define INTCPS_SIR_IRQ_OFFSET 0x0040 /* omap2/3 active interrupt offset */ #define ACTIVEIRQ_MASK 0x7f /* omap2/3 active interrupt bits */ +#define INTCPS_NR_MIR_REGS 3 +#define INTCPS_NR_IRQS 96 /* * OMAP2 has a number of different interrupt controllers, each interrupt @@ -82,12 +83,12 @@ struct omap3_intc_regs { static void intc_bank_write_reg(u32 val, struct omap_irq_bank *bank, u16 reg) { - __raw_writel(val, bank->base_reg + reg); + writel_relaxed(val, bank->base_reg + reg); } static u32 intc_bank_read_reg(struct omap_irq_bank *bank, u16 reg) { - return __raw_readl(bank->base_reg + reg); + return readl_relaxed(bank->base_reg + reg); } /* XXX: FIQ and additional INTC support (only MPU at the moment) */ @@ -107,9 +108,8 @@ static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank) unsigned long tmp; tmp = intc_bank_read_reg(bank, INTC_REVISION) & 0xff; - printk(KERN_INFO "IRQ: Found an INTC at 0x%p " - "(revision %ld.%ld) with %d interrupts\n", - bank->base_reg, tmp >> 4, tmp & 0xf, bank->nr_irqs); + pr_info("IRQ: Found an INTC at 0x%p (revision %ld.%ld) with %d interrupts\n", + bank->base_reg, tmp >> 4, tmp & 0xf, bank->nr_irqs); tmp = intc_bank_read_reg(bank, INTC_SYSCONFIG); tmp |= 1 << 1; /* soft reset */ @@ -222,6 +222,7 @@ void __init ti81xx_init_irq(void) static inline void omap_intc_handle_irq(void __iomem *base_addr, struct pt_regs *regs) { u32 irqnr; + int handled_irq = 0; do { irqnr = readl_relaxed(base_addr + 0x98); @@ -233,7 +234,7 @@ static inline void omap_intc_handle_irq(void __iomem *base_addr, struct pt_regs goto out; irqnr = readl_relaxed(base_addr + 0xd8); -#ifdef CONFIG_SOC_TI81XX +#if IS_ENABLED(CONFIG_SOC_TI81XX) || IS_ENABLED(CONFIG_SOC_AM33XX) if (irqnr) goto out; irqnr = readl_relaxed(base_addr + 0xf8); @@ -249,8 +250,15 @@ out: if (irqnr) { irqnr = irq_find_mapping(domain, irqnr); handle_IRQ(irqnr, regs); + handled_irq = 1; } } while (irqnr); + + /* If an irq is masked or deasserted while active, we will + * keep ending up here with no irq handled. So remove it from + * the INTC with an ack.*/ + if (!handled_irq) + omap_ack_irq(NULL); } asmlinkage void __exception_irq_entry omap2_intc_handle_irq(struct pt_regs *regs) |