diff --git a/arch/arm/mach-mx1/devices.c b/arch/arm/mach-mx1/devices.c
index ad4679b90870..686d8d2dbb24 100644
--- a/arch/arm/mach-mx1/devices.c
+++ b/arch/arm/mach-mx1/devices.c
@@ -232,25 +232,25 @@ static struct mxc_gpio_port imx_gpio_ports[] = {
 		.chip.label = "gpio-0",
 		.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR),
 		.irq = GPIO_INT_PORTA,
-		.virtual_irq_start = MXC_MAX_INT_LINES
+		.virtual_irq_start = MXC_GPIO_IRQ_START
 	},
 	[1] = {
 		.chip.label = "gpio-1",
 		.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x100),
 		.irq = GPIO_INT_PORTB,
-		.virtual_irq_start = MXC_MAX_INT_LINES + 32
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 32
 	},
 	[2] = {
 		.chip.label = "gpio-2",
 		.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x200),
 		.irq = GPIO_INT_PORTC,
-		.virtual_irq_start = MXC_MAX_INT_LINES + 64
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 64
 	},
 	[3] = {
 		.chip.label = "gpio-3",
 		.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x300),
 		.irq = GPIO_INT_PORTD,
-		.virtual_irq_start = MXC_MAX_INT_LINES + 96
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 96
 	}
 };
 
diff --git a/arch/arm/mach-mx2/devices.c b/arch/arm/mach-mx2/devices.c
index 0bad86527743..af121f5ab710 100644
--- a/arch/arm/mach-mx2/devices.c
+++ b/arch/arm/mach-mx2/devices.c
@@ -230,32 +230,32 @@ static struct mxc_gpio_port imx_gpio_ports[] = {
 		.chip.label = "gpio-0",
 		.irq = MXC_INT_GPIO,
 		.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 0),
-		.virtual_irq_start = MXC_MAX_INT_LINES,
+		.virtual_irq_start = MXC_GPIO_IRQ_START,
 	},
 	[1] = {
 		.chip.label = "gpio-1",
 		.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 1),
-		.virtual_irq_start = MXC_MAX_INT_LINES + 32,
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 32,
 	},
 	[2] = {
 		.chip.label = "gpio-2",
 		.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 2),
-		.virtual_irq_start = MXC_MAX_INT_LINES + 64,
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 64,
 	},
 	[3] = {
 		.chip.label = "gpio-3",
 		.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 3),
-		.virtual_irq_start = MXC_MAX_INT_LINES + 96,
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 96,
 	},
 	[4] = {
 		.chip.label = "gpio-4",
 		.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 4),
-		.virtual_irq_start = MXC_MAX_INT_LINES + 128,
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 128,
 	},
 	[5] = {
 		.chip.label = "gpio-5",
 		.base = (void*)(AIPI_BASE_ADDR_VIRT + 0x15000 + 0x100 * 5),
-		.virtual_irq_start = MXC_MAX_INT_LINES + 160,
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 160,
 	}
 };
 
diff --git a/arch/arm/mach-mx2/mx27ads.c b/arch/arm/mach-mx2/mx27ads.c
index a06497674436..2b5c67f54571 100644
--- a/arch/arm/mach-mx2/mx27ads.c
+++ b/arch/arm/mach-mx2/mx27ads.c
@@ -93,7 +93,7 @@ static int uart_mxc_port1_init(struct platform_device *pdev)
 
 static int uart_mxc_port1_exit(struct platform_device *pdev)
 {
-	mxc_gpio_setup_release_pins(mxc_uart1_pins,
+	mxc_gpio_release_multiple_pins(mxc_uart1_pins,
 			ARRAY_SIZE(mxc_uart1_pins));
 	return 0;
 }
diff --git a/arch/arm/mach-mx3/clock.c b/arch/arm/mach-mx3/clock.c
index 9f14a871ee7c..b1746aae1f89 100644
--- a/arch/arm/mach-mx3/clock.c
+++ b/arch/arm/mach-mx3/clock.c
@@ -24,6 +24,7 @@
 #include <linux/err.h>
 #include <linux/io.h>
 #include <mach/clock.h>
+#include <mach/hardware.h>
 #include <asm/div64.h>
 
 #include "crm_regs.h"
diff --git a/arch/arm/mach-mx3/devices.c b/arch/arm/mach-mx3/devices.c
index 3e61ff4646fe..1d46cb4adf96 100644
--- a/arch/arm/mach-mx3/devices.c
+++ b/arch/arm/mach-mx3/devices.c
@@ -125,19 +125,19 @@ static struct mxc_gpio_port imx_gpio_ports[] = {
 		.chip.label = "gpio-0",
 		.base = IO_ADDRESS(GPIO1_BASE_ADDR),
 		.irq = MXC_INT_GPIO1,
-		.virtual_irq_start = MXC_GPIO_INT_BASE
+		.virtual_irq_start = MXC_GPIO_IRQ_START,
 	},
 	[1] = {
 		.chip.label = "gpio-1",
 		.base = IO_ADDRESS(GPIO2_BASE_ADDR),
 		.irq = MXC_INT_GPIO2,
-		.virtual_irq_start = MXC_GPIO_INT_BASE + GPIO_NUM_PIN
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 32,
 	},
 	[2] = {
 		.chip.label = "gpio-2",
 		.base = IO_ADDRESS(GPIO3_BASE_ADDR),
 		.irq = MXC_INT_GPIO3,
-		.virtual_irq_start = MXC_GPIO_INT_BASE + GPIO_NUM_PIN * 2
+		.virtual_irq_start = MXC_GPIO_IRQ_START + 64,
 	}
 };
 
diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig
index 16cb07cd9162..9cc2b16fdf79 100644
--- a/arch/arm/plat-mxc/Kconfig
+++ b/arch/arm/plat-mxc/Kconfig
@@ -8,6 +8,7 @@ choice
 
 config ARCH_MX1
 	bool "MX1-based"
+	select CPU_ARM920T
 	help
 	  This enables support for systems based on the Freescale i.MX1 family
 
diff --git a/arch/arm/plat-mxc/dma-mx1-mx2.c b/arch/arm/plat-mxc/dma-mx1-mx2.c
index e1c2eb497fbc..2905ec758758 100644
--- a/arch/arm/plat-mxc/dma-mx1-mx2.c
+++ b/arch/arm/plat-mxc/dma-mx1-mx2.c
@@ -511,6 +511,7 @@ void imx_dma_disable(int channel)
 }
 EXPORT_SYMBOL(imx_dma_disable);
 
+#ifdef CONFIG_ARCH_MX2
 static void imx_dma_watchdog(unsigned long chno)
 {
 	struct imx_dma_channel *imxdma = &imx_dma_channels[chno];
@@ -522,6 +523,7 @@ static void imx_dma_watchdog(unsigned long chno)
 	if (imxdma->err_handler)
 		imxdma->err_handler(chno, imxdma->data, IMX_DMA_ERR_TIMEOUT);
 }
+#endif
 
 static irqreturn_t dma_err_handler(int irq, void *dev_id)
 {
@@ -674,7 +676,7 @@ int imx_dma_request(int channel, const char *name)
 {
 	struct imx_dma_channel *imxdma = &imx_dma_channels[channel];
 	unsigned long flags;
-	int ret;
+	int ret = 0;
 
 	/* basic sanity checks */
 	if (!name)
@@ -696,6 +698,7 @@ int imx_dma_request(int channel, const char *name)
 	ret = request_irq(MXC_INT_DMACH0 + channel, dma_irq_handler, 0, "DMA",
 			NULL);
 	if (ret) {
+		local_irq_restore(flags);
 		printk(KERN_CRIT "Can't register IRQ %d for DMA channel %d\n",
 				MXC_INT_DMACH0 + channel, channel);
 		return ret;
@@ -712,7 +715,7 @@ int imx_dma_request(int channel, const char *name)
 	imxdma->sg = NULL;
 
 	local_irq_restore(flags);
-	return 0;
+	return ret;
 }
 EXPORT_SYMBOL(imx_dma_request);
 
diff --git a/arch/arm/plat-mxc/include/mach/board-mx27ads.h b/arch/arm/plat-mxc/include/mach/board-mx27ads.h
index 0c748a8e157b..8f34a05afc87 100644
--- a/arch/arm/plat-mxc/include/mach/board-mx27ads.h
+++ b/arch/arm/plat-mxc/include/mach/board-mx27ads.h
@@ -15,7 +15,7 @@
 #define __ASM_ARCH_MXC_BOARD_MX27ADS_H__
 
 /* external interrupt multiplexer */
-#define MXC_EXP_IO_BASE		(MXC_GPIO_BASE + MXC_MAX_GPIO_LINES)
+#define MXC_EXP_IO_BASE		(MXC_BOARD_IRQ_START)
 
 #define MXC_VIRTUAL_INTS_BASE	(MXC_EXP_IO_BASE + MXC_MAX_EXP_IO_LINES)
 #define MXC_SDIO1_CARD_IRQ	MXC_VIRTUAL_INTS_BASE
diff --git a/arch/arm/plat-mxc/include/mach/board-mx31ads.h b/arch/arm/plat-mxc/include/mach/board-mx31ads.h
index 745b48864f93..451d510d08c3 100644
--- a/arch/arm/plat-mxc/include/mach/board-mx31ads.h
+++ b/arch/arm/plat-mxc/include/mach/board-mx31ads.h
@@ -90,7 +90,7 @@
 #define PBC_INTMASK_CLEAR_REG	(PBC_INTMASK_CLEAR + PBC_BASE_ADDRESS)
 #define EXPIO_PARENT_INT	IOMUX_TO_IRQ(MX31_PIN_GPIO1_4)
 
-#define MXC_EXP_IO_BASE		(MXC_MAX_INT_LINES + MXC_MAX_GPIO_LINES)
+#define MXC_EXP_IO_BASE		(MXC_BOARD_IRQ_START)
 #define MXC_IRQ_TO_EXPIO(irq)	((irq) - MXC_EXP_IO_BASE)
 
 #define EXPIO_INT_LOW_BAT	(MXC_EXP_IO_BASE + 0)
diff --git a/arch/arm/plat-mxc/include/mach/entry-macro.S b/arch/arm/plat-mxc/include/mach/entry-macro.S
index 11632028f7d1..5f01d60da845 100644
--- a/arch/arm/plat-mxc/include/mach/entry-macro.S
+++ b/arch/arm/plat-mxc/include/mach/entry-macro.S
@@ -9,6 +9,8 @@
  * published by the Free Software Foundation.
  */
 
+#include <mach/hardware.h>
+
 #define AVIC_NIMASK	0x04
 
 	@ this macro disables fast irq (not implemented)
diff --git a/arch/arm/plat-mxc/include/mach/gpio.h b/arch/arm/plat-mxc/include/mach/gpio.h
index 65eedc0d196f..ea509f1090fb 100644
--- a/arch/arm/plat-mxc/include/mach/gpio.h
+++ b/arch/arm/plat-mxc/include/mach/gpio.h
@@ -27,8 +27,8 @@
 #define gpio_set_value		__gpio_set_value
 #define gpio_cansleep		__gpio_cansleep
 
-#define gpio_to_irq(gpio)	(MXC_MAX_INT_LINES + (gpio))
-#define irq_to_gpio(irq)	((irq) - MXC_MAX_INT_LINES)
+#define gpio_to_irq(gpio)	(MXC_GPIO_IRQ_START + (gpio))
+#define irq_to_gpio(irq)	((irq) - MXC_GPIO_IRQ_START)
 
 struct mxc_gpio_port {
 	void __iomem *base;
diff --git a/arch/arm/plat-mxc/include/mach/io.h b/arch/arm/plat-mxc/include/mach/io.h
index c0cb267e7403..b4f2de769466 100644
--- a/arch/arm/plat-mxc/include/mach/io.h
+++ b/arch/arm/plat-mxc/include/mach/io.h
@@ -25,8 +25,8 @@ __mx3_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype)
 		/* Access all peripherals below 0x80000000 as nonshared device
 		 * but leave l2cc alone.
 		 */
-		if ((phys_addr < 0x80000000) && ((phys_addr < L2CC_BASE_ADDR) ||
-			(phys_addr >= L2CC_BASE_ADDR + L2CC_SIZE)))
+		if ((phys_addr < 0x80000000) && ((phys_addr < 0x30000000) ||
+			(phys_addr >= 0x30000000 + SZ_1M)))
 			mtype = MT_DEVICE_NONSHARED;
 	}
 
diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx1-mx2.h b/arch/arm/plat-mxc/include/mach/iomux-mx1-mx2.h
index 60b3c9b6ef7d..95a383be628e 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-mx1-mx2.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-mx1-mx2.h
@@ -405,9 +405,9 @@ extern void mxc_gpio_release_multiple_pins(const int *pin_list, int count);
 #endif
 
 /* decode irq number to use with IMR(x), ISR(x) and friends */
-#define IRQ_TO_REG(irq) ((irq - MXC_MAX_INT_LINES) >> 5)
+#define IRQ_TO_REG(irq) ((irq - MXC_INTERNAL_IRQS) >> 5)
 
-#define IRQ_GPIOA(x)  (MXC_MAX_INT_LINES + x)
+#define IRQ_GPIOA(x)  (MXC_GPIO_IRQ_START + x)
 #define IRQ_GPIOB(x)  (IRQ_GPIOA(32) + x)
 #define IRQ_GPIOC(x)  (IRQ_GPIOB(32) + x)
 #define IRQ_GPIOD(x)  (IRQ_GPIOC(32) + x)
diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx3.h b/arch/arm/plat-mxc/include/mach/iomux-mx3.h
index 20e5c4c63314..c9198c0aea18 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-mx3.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-mx3.h
@@ -141,7 +141,7 @@ void mxc_iomux_set_gpr(enum iomux_gp_func, bool);
 	((iomux_pin & IOMUX_GPIONUM_MASK) >> IOMUX_GPIONUM_SHIFT)
 #define IOMUX_TO_IRQ(iomux_pin) \
 	(((iomux_pin & IOMUX_GPIONUM_MASK) >> IOMUX_GPIONUM_SHIFT) + \
-	MXC_GPIO_INT_BASE)
+	MXC_GPIO_IRQ_START)
 
 /*
  * This enumeration is constructed based on the Section
diff --git a/arch/arm/plat-mxc/include/mach/irqs.h b/arch/arm/plat-mxc/include/mach/irqs.h
index b8ac91608a4f..e06d3cb0ee11 100644
--- a/arch/arm/plat-mxc/include/mach/irqs.h
+++ b/arch/arm/plat-mxc/include/mach/irqs.h
@@ -11,7 +11,32 @@
 #ifndef __ASM_ARCH_MXC_IRQS_H__
 #define __ASM_ARCH_MXC_IRQS_H__
 
-#include <mach/hardware.h>
+/*
+ * So far all i.MX SoCs have 64 internal interrupts
+ */
+#define MXC_INTERNAL_IRQS	64
+
+#define MXC_GPIO_IRQ_START	MXC_INTERNAL_IRQS
+
+#if defined CONFIG_ARCH_MX1
+#define MXC_GPIO_IRQS		(32 * 4)
+#elif defined CONFIG_ARCH_MX2
+#define MXC_GPIO_IRQS		(32 * 6)
+#elif defined CONFIG_ARCH_MX3
+#define MXC_GPIO_IRQS		(32 * 3)
+#endif
+
+/*
+ * The next 16 interrupts are for board specific purposes.  Since
+ * the kernel can only run on one machine at a time, we can re-use
+ * these.  If you need more, increase MXC_BOARD_IRQS, but keep it
+ * within sensible limits.
+ */
+#define MXC_BOARD_IRQ_START	(MXC_INTERNAL_IRQS + MXC_GPIO_IRQS)
+#define MXC_BOARD_IRQS	16
+
+#define NR_IRQS		(MXC_BOARD_IRQ_START + MXC_BOARD_IRQS)
+
 extern void imx_irq_set_priority(unsigned char irq, unsigned char prio);
 
 /* all normal IRQs can be FIQs */
diff --git a/arch/arm/plat-mxc/include/mach/memory.h b/arch/arm/plat-mxc/include/mach/memory.h
index 203688e6164e..0b808399097f 100644
--- a/arch/arm/plat-mxc/include/mach/memory.h
+++ b/arch/arm/plat-mxc/include/mach/memory.h
@@ -11,6 +11,12 @@
 #ifndef __ASM_ARCH_MXC_MEMORY_H__
 #define __ASM_ARCH_MXC_MEMORY_H__
 
-#include <mach/hardware.h>
+#if defined CONFIG_ARCH_MX1
+#define PHYS_OFFSET		UL(0x08000000)
+#elif defined CONFIG_ARCH_MX2
+#define PHYS_OFFSET		UL(0xA0000000)
+#elif defined CONFIG_ARCH_MX3
+#define PHYS_OFFSET		UL(0x80000000)
+#endif
 
 #endif /* __ASM_ARCH_MXC_MEMORY_H__ */
diff --git a/arch/arm/plat-mxc/include/mach/mx1.h b/arch/arm/plat-mxc/include/mach/mx1.h
index e7f6d00009a7..b92e02324d8e 100644
--- a/arch/arm/plat-mxc/include/mach/mx1.h
+++ b/arch/arm/plat-mxc/include/mach/mx1.h
@@ -18,13 +18,6 @@
 
 #include <mach/vmalloc.h>
 
-/*
- * defines the hardware clock tick rate
- */
-#define CLOCK_TICK_RATE	16000000
-
-#define PHYS_OFFSET	UL(0x08000000)
-
 /*
  * Memory map
  */
@@ -145,10 +138,6 @@
 #define GPIO_INT_PORTD		62
 #define WDT_INT			63
 
-#define MXC_MAX_INT_LINES	64
-
-#define NR_IRQS			256
-
 /* gpio and gpio based interrupt handling */
 #define GPIO_DR		 	0x1C
 #define GPIO_GDIR	 	0x00
diff --git a/arch/arm/plat-mxc/include/mach/mx27.h b/arch/arm/plat-mxc/include/mach/mx27.h
index aade46d90e73..0313be720552 100644
--- a/arch/arm/plat-mxc/include/mach/mx27.h
+++ b/arch/arm/plat-mxc/include/mach/mx27.h
@@ -289,16 +289,4 @@ extern int mx27_revision(void);
 /* this CPU supports up to 192 GPIOs (don't forget the baseboard!) */
 #define ARCH_NR_GPIOS		(192 + 16)
 
-/* OS clock tick rate */
-#define CLOCK_TICK_RATE         13300000
-
-/* Start of RAM */
-#define PHYS_OFFSET		SDRAM_BASE_ADDR
-
-/* max interrupt lines count */
-#define NR_IRQS			256
-
-/* count of internal interrupt sources */
-#define MXC_MAX_INT_LINES	64
-
 #endif /* __ASM_ARCH_MXC_MX27_H__ */
diff --git a/arch/arm/plat-mxc/include/mach/mx31.h b/arch/arm/plat-mxc/include/mach/mx31.h
index 0536f8917bc0..de026654b00e 100644
--- a/arch/arm/plat-mxc/include/mach/mx31.h
+++ b/arch/arm/plat-mxc/include/mach/mx31.h
@@ -15,11 +15,6 @@
 #error "Do not include directly."
 #endif
 
-/*!
- * defines the hardware clock tick rate
- */
-#define CLOCK_TICK_RATE		16625000
-
 /*
  * MX31 memory map:
  *
@@ -244,9 +239,6 @@
 #define PCMCIA_IO_ADDRESS(x) \
 	(((x) - X_MEMC_BASE_ADDR) + X_MEMC_BASE_ADDR_VIRT)
 
-/* Start of physical RAM - On many MX31 platforms, this is the first SDRAM bank (CSD0) */
-#define PHYS_OFFSET             CSD0_BASE_ADDR
-
 /*
  * Interrupt numbers
  */
@@ -315,23 +307,6 @@
 #define MXC_INT_EXT_WDOG	62
 #define MXC_INT_EXT_TV		63
 
-#define MXC_MAX_INT_LINES	64
-
-#define MXC_GPIO_INT_BASE	MXC_MAX_INT_LINES
-#define MXC_MAX_GPIO_LINES      (GPIO_NUM_PIN * GPIO_PORT_NUM)
-#define MXC_MAX_VIRTUAL_INTS	16
-
-#define NR_IRQS (MXC_MAX_INT_LINES + MXC_MAX_GPIO_LINES + MXC_MAX_VIRTUAL_INTS)
-
-/*!
- * Number of GPIO port as defined in the IC Spec
- */
-#define GPIO_PORT_NUM		3
-/*!
- * Number of GPIO pins per port
- */
-#define GPIO_NUM_PIN		32
-
 #define PROD_SIGNATURE		0x1	/* For MX31 */
 
 /* silicon revisions specific to i.MX31 */
diff --git a/arch/arm/plat-mxc/include/mach/timex.h b/arch/arm/plat-mxc/include/mach/timex.h
index 0b0af0253e91..07b4a73c9d2f 100644
--- a/arch/arm/plat-mxc/include/mach/timex.h
+++ b/arch/arm/plat-mxc/include/mach/timex.h
@@ -20,6 +20,12 @@
 #ifndef __ASM_ARCH_MXC_TIMEX_H__
 #define __ASM_ARCH_MXC_TIMEX_H__
 
-#include <mach/hardware.h>	/* for CLOCK_TICK_RATE */
+#if defined CONFIG_ARCH_MX1
+#define CLOCK_TICK_RATE		16000000
+#elif defined CONFIG_ARCH_MX2
+#define CLOCK_TICK_RATE		13300000
+#elif defined CONFIG_ARCH_MX3
+#define CLOCK_TICK_RATE		16625000
+#endif
 
 #endif				/* __ASM_ARCH_MXC_TIMEX_H__ */
diff --git a/arch/arm/plat-mxc/irq.c b/arch/arm/plat-mxc/irq.c
index e937c8759a97..6e7578a3514b 100644
--- a/arch/arm/plat-mxc/irq.c
+++ b/arch/arm/plat-mxc/irq.c
@@ -22,6 +22,7 @@
 #include <linux/io.h>
 #include <mach/common.h>
 #include <asm/mach/irq.h>
+#include <mach/hardware.h>
 
 #define AVIC_BASE		IO_ADDRESS(AVIC_BASE_ADDR)
 #define AVIC_INTCNTL		(AVIC_BASE + 0x00)	/* int control reg */
@@ -72,14 +73,14 @@ int mxc_set_irq_fiq(unsigned int irq, unsigned int type)
 {
 	unsigned int irqt;
 
-	if (irq >= MXC_MAX_INT_LINES)
+	if (irq >= MXC_INTERNAL_IRQS)
 		return -EINVAL;
 
-	if (irq < MXC_MAX_INT_LINES / 2) {
+	if (irq < MXC_INTERNAL_IRQS / 2) {
 		irqt = __raw_readl(AVIC_INTTYPEL) & ~(1 << irq);
 		__raw_writel(irqt | (!!type << irq), AVIC_INTTYPEL);
 	} else {
-		irq -= MXC_MAX_INT_LINES / 2;
+		irq -= MXC_INTERNAL_IRQS / 2;
 		irqt = __raw_readl(AVIC_INTTYPEH) & ~(1 << irq);
 		__raw_writel(irqt | (!!type << irq), AVIC_INTTYPEH);
 	}
@@ -129,7 +130,7 @@ void __init mxc_init_irq(void)
 	/* all IRQ no FIQ */
 	__raw_writel(0, AVIC_INTTYPEH);
 	__raw_writel(0, AVIC_INTTYPEL);
-	for (i = 0; i < MXC_MAX_INT_LINES; i++) {
+	for (i = 0; i < MXC_INTERNAL_IRQS; i++) {
 		set_irq_chip(i, &mxc_avic_chip);
 		set_irq_handler(i, handle_level_irq);
 		set_irq_flags(i, IRQF_VALID);
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 73dea88cceb3..a50954612b60 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -191,7 +191,7 @@
 #define SERIAL_IMX_MAJOR        207
 #define MINOR_START	        16
 #define DEV_NAME		"ttymxc"
-#define MAX_INTERNAL_IRQ	MXC_MAX_INT_LINES
+#define MAX_INTERNAL_IRQ	MXC_INTERNAL_IRQS
 #endif
 
 /*