diff options
Diffstat (limited to 'arch/arm/mach-imx')
| -rw-r--r-- | arch/arm/mach-imx/clock.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-imx/include/mach/irqs.h | 5 | ||||
| -rw-r--r-- | arch/arm/mach-imx/irq.c | 38 | ||||
| -rw-r--r-- | arch/arm/mach-imx/leds-mx1ads.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-imx/time.c | 2 |
5 files changed, 38 insertions, 11 deletions
diff --git a/arch/arm/mach-imx/clock.c b/arch/arm/mach-imx/clock.c index 4b4230db376..7ec60fc9156 100644 --- a/arch/arm/mach-imx/clock.c +++ b/arch/arm/mach-imx/clock.c @@ -21,8 +21,8 @@ #include <linux/list.h> #include <linux/math64.h> #include <linux/err.h> +#include <linux/io.h> -#include <asm/io.h> #include <mach/imx-regs.h> /* diff --git a/arch/arm/mach-imx/include/mach/irqs.h b/arch/arm/mach-imx/include/mach/irqs.h index eb8d5bd05d5..67812c5ac1f 100644 --- a/arch/arm/mach-imx/include/mach/irqs.h +++ b/arch/arm/mach-imx/include/mach/irqs.h @@ -111,6 +111,11 @@ /* decode irq number to use with IMR(x), ISR(x) and friends */ #define IRQ_TO_REG(irq) ((irq - IMX_IRQS) >> 5) +/* all normal IRQs can be FIQs */ +#define FIQ_START 0 +/* switch betwean IRQ and FIQ */ +extern int imx_set_irq_fiq(unsigned int irq, unsigned int type); + #define NR_IRQS (IRQ_GPIOD(32) + 1) #define IRQ_GPIO(x) #endif diff --git a/arch/arm/mach-imx/irq.c b/arch/arm/mach-imx/irq.c index 798f221eb3b..531b95deadc 100644 --- a/arch/arm/mach-imx/irq.c +++ b/arch/arm/mach-imx/irq.c @@ -26,20 +26,17 @@ #include <linux/init.h> #include <linux/list.h> #include <linux/timer.h> +#include <linux/io.h> #include <mach/hardware.h> #include <asm/irq.h> -#include <asm/io.h> #include <asm/mach/irq.h> /* * * We simply use the ENABLE DISABLE registers inside of the IMX - * to turn on/off specific interrupts. FIXME- We should - * also add support for the accelerated interrupt controller - * by putting offets to irq jump code in the appropriate - * places. + * to turn on/off specific interrupts. * */ @@ -102,6 +99,28 @@ imx_unmask_irq(unsigned int irq) __raw_writel(irq, IMX_AITC_INTENNUM); } +#ifdef CONFIG_FIQ +int imx_set_irq_fiq(unsigned int irq, unsigned int type) +{ + unsigned int irqt; + + if (irq >= IMX_IRQS) + return -EINVAL; + + if (irq < IMX_IRQS / 2) { + irqt = __raw_readl(IMX_AITC_INTTYPEL) & ~(1 << irq); + __raw_writel(irqt | (!!type << irq), IMX_AITC_INTTYPEL); + } else { + irq -= IMX_IRQS / 2; + irqt = __raw_readl(IMX_AITC_INTTYPEH) & ~(1 << irq); + __raw_writel(irqt | (!!type << irq), IMX_AITC_INTTYPEH); + } + + return 0; +} +EXPORT_SYMBOL(imx_set_irq_fiq); +#endif /* CONFIG_FIQ */ + static int imx_gpio_irq_type(unsigned int _irq, unsigned int type) { @@ -182,14 +201,12 @@ static void imx_gpio_handler(unsigned int mask, unsigned int irq, struct irq_desc *desc) { - desc = irq_desc + irq; while (mask) { if (mask & 1) { DEBUG_IRQ("handling irq %d\n", irq); - desc_handle_irq(irq, desc); + generic_handle_irq(irq); } irq++; - desc++; mask >>= 1; } } @@ -286,4 +303,9 @@ imx_init_irq(void) /* Release masking of interrupts according to priority */ __raw_writel(-1, IMX_AITC_NIMASK); + +#ifdef CONFIG_FIQ + /* Initialize FIQ */ + init_FIQ(); +#endif } diff --git a/arch/arm/mach-imx/leds-mx1ads.c b/arch/arm/mach-imx/leds-mx1ads.c index af81621f689..1d48f2762cb 100644 --- a/arch/arm/mach-imx/leds-mx1ads.c +++ b/arch/arm/mach-imx/leds-mx1ads.c @@ -13,9 +13,9 @@ #include <linux/kernel.h> #include <linux/init.h> +#include <linux/io.h> #include <mach/hardware.h> #include <asm/system.h> -#include <asm/io.h> #include <asm/leds.h> #include "leds.h" diff --git a/arch/arm/mach-imx/time.c b/arch/arm/mach-imx/time.c index 08be3875c59..a11765f5f23 100644 --- a/arch/arm/mach-imx/time.c +++ b/arch/arm/mach-imx/time.c @@ -18,9 +18,9 @@ #include <linux/clocksource.h> #include <linux/clockchips.h> #include <linux/clk.h> +#include <linux/io.h> #include <mach/hardware.h> -#include <asm/io.h> #include <asm/leds.h> #include <asm/irq.h> #include <asm/mach/time.h> |