Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6

[mv-sheeva.git] / arch / arm / mach-imx / irq.c

diff --git a/arch/arm/mach-imx/irq.c b/arch/arm/mach-imx/irq.c
index 2688bd82c2a242addcc62822b90b461d509ec0f3..a7465db8489373a54bc785a4d0a72a809698c327 100644 (file)
--- a/arch/arm/mach-imx/irq.c
+++ b/arch/arm/mach-imx/irq.c
@@ -43,12 +43,46 @@
  *
  */
 
-#define INTENNUM_OFF              0x8
-#define INTDISNUM_OFF             0xC
+#define INTCNTL_OFF               0x00
+#define NIMASK_OFF                0x04
+#define INTENNUM_OFF              0x08
+#define INTDISNUM_OFF             0x0C
+#define INTENABLEH_OFF            0x10
+#define INTENABLEL_OFF            0x14
+#define INTTYPEH_OFF              0x18
+#define INTTYPEL_OFF              0x1C
+#define NIPRIORITY_OFF(x)         (0x20+4*(7-(x)))
+#define NIVECSR_OFF               0x40
+#define FIVECSR_OFF               0x44
+#define INTSRCH_OFF               0x48
+#define INTSRCL_OFF               0x4C
+#define INTFRCH_OFF               0x50
+#define INTFRCL_OFF               0x54
+#define NIPNDH_OFF                0x58
+#define NIPNDL_OFF                0x5C
+#define FIPNDH_OFF                0x60
+#define FIPNDL_OFF                0x64
 
 #define VA_AITC_BASE              IO_ADDRESS(IMX_AITC_BASE)
-#define IMX_AITC_INTDISNUM       (VA_AITC_BASE + INTDISNUM_OFF)
+#define IMX_AITC_INTCNTL         (VA_AITC_BASE + INTCNTL_OFF)
+#define IMX_AITC_NIMASK          (VA_AITC_BASE + NIMASK_OFF)
 #define IMX_AITC_INTENNUM        (VA_AITC_BASE + INTENNUM_OFF)
+#define IMX_AITC_INTDISNUM       (VA_AITC_BASE + INTDISNUM_OFF)
+#define IMX_AITC_INTENABLEH      (VA_AITC_BASE + INTENABLEH_OFF)
+#define IMX_AITC_INTENABLEL      (VA_AITC_BASE + INTENABLEL_OFF)
+#define IMX_AITC_INTTYPEH        (VA_AITC_BASE + INTTYPEH_OFF)
+#define IMX_AITC_INTTYPEL        (VA_AITC_BASE + INTTYPEL_OFF)
+#define IMX_AITC_NIPRIORITY(x)   (VA_AITC_BASE + NIPRIORITY_OFF(x))
+#define IMX_AITC_NIVECSR         (VA_AITC_BASE + NIVECSR_OFF)
+#define IMX_AITC_FIVECSR         (VA_AITC_BASE + FIVECSR_OFF)
+#define IMX_AITC_INTSRCH         (VA_AITC_BASE + INTSRCH_OFF)
+#define IMX_AITC_INTSRCL         (VA_AITC_BASE + INTSRCL_OFF)
+#define IMX_AITC_INTFRCH         (VA_AITC_BASE + INTFRCH_OFF)
+#define IMX_AITC_INTFRCL         (VA_AITC_BASE + INTFRCL_OFF)
+#define IMX_AITC_NIPNDH          (VA_AITC_BASE + NIPNDH_OFF)
+#define IMX_AITC_NIPNDL          (VA_AITC_BASE + NIPNDL_OFF)
+#define IMX_AITC_FIPNDH          (VA_AITC_BASE + FIPNDH_OFF)
+#define IMX_AITC_FIPNDL          (VA_AITC_BASE + FIPNDL_OFF)
 
 #if 0
 #define DEBUG_IRQ(fmt...)      printk(fmt)
@@ -146,13 +180,13 @@ imx_gpio_unmask_irq(unsigned int irq)
 
 static void
 imx_gpio_handler(unsigned int mask, unsigned int irq,
-                 struct irqdesc *desc, struct pt_regs *regs)
+                 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, regs);
+                       desc_handle_irq(irq, desc);
                }
                irq++;
                desc++;
@@ -161,47 +195,43 @@ imx_gpio_handler(unsigned int mask, unsigned int irq,
 }
 
 static void
-imx_gpioa_demux_handler(unsigned int irq_unused, struct irqdesc *desc,
-                       struct pt_regs *regs)
+imx_gpioa_demux_handler(unsigned int irq_unused, struct irq_desc *desc)
 {
        unsigned int mask, irq;
 
        mask = ISR(0);
        irq = IRQ_GPIOA(0);
-       imx_gpio_handler(mask, irq, desc, regs);
+       imx_gpio_handler(mask, irq, desc);
 }
 
 static void
-imx_gpiob_demux_handler(unsigned int irq_unused, struct irqdesc *desc,
-                       struct pt_regs *regs)
+imx_gpiob_demux_handler(unsigned int irq_unused, struct irq_desc *desc)
 {
        unsigned int mask, irq;
 
        mask = ISR(1);
        irq = IRQ_GPIOB(0);
-       imx_gpio_handler(mask, irq, desc, regs);
+       imx_gpio_handler(mask, irq, desc);
 }
 
 static void
-imx_gpioc_demux_handler(unsigned int irq_unused, struct irqdesc *desc,
-                       struct pt_regs *regs)
+imx_gpioc_demux_handler(unsigned int irq_unused, struct irq_desc *desc)
 {
        unsigned int mask, irq;
 
        mask = ISR(2);
        irq = IRQ_GPIOC(0);
-       imx_gpio_handler(mask, irq, desc, regs);
+       imx_gpio_handler(mask, irq, desc);
 }
 
 static void
-imx_gpiod_demux_handler(unsigned int irq_unused, struct irqdesc *desc,
-                       struct pt_regs *regs)
+imx_gpiod_demux_handler(unsigned int irq_unused, struct irq_desc *desc)
 {
        unsigned int mask, irq;
 
        mask = ISR(3);
        irq = IRQ_GPIOD(0);
-       imx_gpio_handler(mask, irq, desc, regs);
+       imx_gpio_handler(mask, irq, desc);
 }
 
 static struct irq_chip imx_internal_chip = {
@@ -226,7 +256,12 @@ imx_init_irq(void)
 
        DEBUG_IRQ("Initializing imx interrupts\n");
 
-       /* Mask all interrupts initially */
+       /* Disable all interrupts initially. */
+       /* Do not rely on the bootloader. */
+       __raw_writel(0, IMX_AITC_INTENABLEH);
+       __raw_writel(0, IMX_AITC_INTENABLEL);
+
+       /* Mask all GPIO interrupts as well */
        IMR(0) = 0;
        IMR(1) = 0;
        IMR(2) = 0;
@@ -234,13 +269,13 @@ imx_init_irq(void)
 
        for (irq = 0; irq < IMX_IRQS; irq++) {
                set_irq_chip(irq, &imx_internal_chip);
-               set_irq_handler(irq, do_level_IRQ);
+               set_irq_handler(irq, handle_level_irq);
                set_irq_flags(irq, IRQF_VALID);
        }
 
        for (irq = IRQ_GPIOA(0); irq < IRQ_GPIOD(32); irq++) {
                set_irq_chip(irq, &imx_gpio_chip);
-               set_irq_handler(irq, do_edge_IRQ);
+               set_irq_handler(irq, handle_edge_irq);
                set_irq_flags(irq, IRQF_VALID);
        }
 
@@ -249,6 +284,6 @@ imx_init_irq(void)
        set_irq_chained_handler(GPIO_INT_PORTC, imx_gpioc_demux_handler);
        set_irq_chained_handler(GPIO_INT_PORTD, imx_gpiod_demux_handler);
 
-       /* Disable all interrupts initially. */
-       /* In IMX this is done in the bootloader. */
+       /* Release masking of interrupts according to priority */
+       __raw_writel(-1, IMX_AITC_NIMASK);
 }