diff --git a/arch/arm/mach-imx/mach-mx25_3ds.c b/arch/arm/mach-imx/mach-mx25_3ds.c
index aa76cfd9f348..8382e7902078 100644
--- a/arch/arm/mach-imx/mach-mx25_3ds.c
+++ b/arch/arm/mach-imx/mach-mx25_3ds.c
@@ -180,7 +180,7 @@ static const uint32_t mx25pdk_keymap[] = {
 	KEY(3, 3, KEY_POWER),
 };
 
-static const struct matrix_keymap_data mx25pdk_keymap_data __initdata = {
+static const struct matrix_keymap_data mx25pdk_keymap_data __initconst = {
 	.keymap		= mx25pdk_keymap,
 	.keymap_size	= ARRAY_SIZE(mx25pdk_keymap),
 };
diff --git a/arch/arm/mach-mxs/clock-mx23.c b/arch/arm/mach-mxs/clock-mx23.c
index b1a362ebfded..ca72a05ed9c1 100644
--- a/arch/arm/mach-mxs/clock-mx23.c
+++ b/arch/arm/mach-mxs/clock-mx23.c
@@ -304,7 +304,7 @@ static int name##_set_rate(struct clk *clk, unsigned long rate)		\
 	reg = __raw_readl(CLKCTRL_BASE_ADDR + HW_CLKCTRL_##dr);		\
 	reg &= ~BM_CLKCTRL_##dr##_DIV;					\
 	reg |= div << BP_CLKCTRL_##dr##_DIV;				\
-	if (reg | (1 << clk->enable_shift)) {				\
+	if (reg & (1 << clk->enable_shift)) {				\
 		pr_err("%s: clock is gated\n", __func__);		\
 		return -EINVAL;						\
 	}								\
@@ -347,7 +347,7 @@ static int name##_set_parent(struct clk *clk, struct clk *parent)	\
 {									\
 	if (parent != clk->parent) {					\
 		__raw_writel(BM_CLKCTRL_CLKSEQ_BYPASS_##bit,		\
-			 HW_CLKCTRL_CLKSEQ_TOG);			\
+			 CLKCTRL_BASE_ADDR + HW_CLKCTRL_CLKSEQ_TOG);	\
 		clk->parent = parent;					\
 	}								\
 									\
diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c
index 56312c092a9e..fd1c4c54b8e5 100644
--- a/arch/arm/mach-mxs/clock-mx28.c
+++ b/arch/arm/mach-mxs/clock-mx28.c
@@ -355,12 +355,12 @@ static int name##_set_rate(struct clk *clk, unsigned long rate)		\
 	} else {							\
 		reg &= ~BM_CLKCTRL_##dr##_DIV;				\
 		reg |= div << BP_CLKCTRL_##dr##_DIV;			\
-		if (reg | (1 << clk->enable_shift)) {			\
+		if (reg & (1 << clk->enable_shift)) {			\
 			pr_err("%s: clock is gated\n", __func__);	\
 			return -EINVAL;					\
 		}							\
 	}								\
-	__raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_CPU);		\
+	__raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_##dr);		\
 									\
 	for (i = 10000; i; i--)						\
 		if (!(__raw_readl(CLKCTRL_BASE_ADDR +			\
@@ -483,7 +483,7 @@ static int name##_set_parent(struct clk *clk, struct clk *parent)	\
 {									\
 	if (parent != clk->parent) {					\
 		__raw_writel(BM_CLKCTRL_CLKSEQ_BYPASS_##bit,		\
-			 HW_CLKCTRL_CLKSEQ_TOG);			\
+			 CLKCTRL_BASE_ADDR + HW_CLKCTRL_CLKSEQ_TOG);	\
 		clk->parent = parent;					\
 	}								\
 									\
@@ -609,7 +609,6 @@ static struct clk_lookup lookups[] = {
 	_REGISTER_CLOCK("duart", NULL, uart_clk)
 	_REGISTER_CLOCK("imx28-fec.0", NULL, fec_clk)
 	_REGISTER_CLOCK("imx28-fec.1", NULL, fec_clk)
-	_REGISTER_CLOCK("fec.0", NULL, fec_clk)
 	_REGISTER_CLOCK("rtc", NULL, rtc_clk)
 	_REGISTER_CLOCK("pll2", NULL, pll2_clk)
 	_REGISTER_CLOCK(NULL, "hclk", hbus_clk)
diff --git a/arch/arm/mach-mxs/clock.c b/arch/arm/mach-mxs/clock.c
index e7d2269cf70e..a7093c88e6a6 100644
--- a/arch/arm/mach-mxs/clock.c
+++ b/arch/arm/mach-mxs/clock.c
@@ -57,7 +57,6 @@ static void __clk_disable(struct clk *clk)
 		if (clk->disable)
 			clk->disable(clk);
 		__clk_disable(clk->parent);
-		__clk_disable(clk->secondary);
 	}
 }
 
@@ -68,7 +67,6 @@ static int __clk_enable(struct clk *clk)
 
 	if (clk->usecount++ == 0) {
 		__clk_enable(clk->parent);
-		__clk_enable(clk->secondary);
 
 		if (clk->enable)
 			clk->enable(clk);
diff --git a/arch/arm/mach-mxs/gpio.c b/arch/arm/mach-mxs/gpio.c
index d7ad7a61366d..cb0c0e83a527 100644
--- a/arch/arm/mach-mxs/gpio.c
+++ b/arch/arm/mach-mxs/gpio.c
@@ -139,6 +139,8 @@ static void mxs_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 	struct mxs_gpio_port *port = (struct mxs_gpio_port *)get_irq_data(irq);
 	u32 gpio_irq_no_base = port->virtual_irq_start;
 
+	desc->irq_data.chip->irq_ack(&desc->irq_data);
+
 	irq_stat = __raw_readl(port->base + PINCTRL_IRQSTAT(port->id)) &
 			__raw_readl(port->base + PINCTRL_IRQEN(port->id));
 
diff --git a/arch/arm/mach-mxs/include/mach/clock.h b/arch/arm/mach-mxs/include/mach/clock.h
index 041e276d8a32..592c9ab5d760 100644
--- a/arch/arm/mach-mxs/include/mach/clock.h
+++ b/arch/arm/mach-mxs/include/mach/clock.h
@@ -29,8 +29,6 @@ struct clk {
 	int id;
 	/* Source clock this clk depends on */
 	struct clk *parent;
-	/* Secondary clock to enable/disable with this clock */
-	struct clk *secondary;
 	/* Reference count of clock enable/disable */
 	__s8 usecount;
 	/* Register bit position for clock's enable/disable control. */
diff --git a/arch/arm/plat-mxc/include/mach/uncompress.h b/arch/arm/plat-mxc/include/mach/uncompress.h
index 3a70ebf0477f..ff469c4f1d76 100644
--- a/arch/arm/plat-mxc/include/mach/uncompress.h
+++ b/arch/arm/plat-mxc/include/mach/uncompress.h
@@ -95,6 +95,7 @@ static __inline__ void __arch_decomp_setup(unsigned long arch_id)
 	case MACH_TYPE_MX35_3DS:
 	case MACH_TYPE_PCM043:
 	case MACH_TYPE_LILLY1131:
+	case MACH_TYPE_VPR200:
 		uart_base = MX3X_UART1_BASE_ADDR;
 		break;
 	case MACH_TYPE_MAGX_ZN5:
@@ -102,6 +103,7 @@ static __inline__ void __arch_decomp_setup(unsigned long arch_id)
 		break;
 	case MACH_TYPE_MX51_BABBAGE:
 	case MACH_TYPE_EUKREA_CPUIMX51SD:
+	case MACH_TYPE_MX51_3DS:
 		uart_base = MX51_UART1_BASE_ADDR;
 		break;
 	case MACH_TYPE_MX50_RDP: