Merge branch 'linus' into x86/memory-corruption-check

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>