Merge tag 'imx6q-cpudile-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/soc

From Shawn Guo:
imx6q cpuidle support for 3.9

 - It's based on imx-cleanup-3.9 to avoid conflicts.

* tag 'imx6q-cpudile-3.9' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: imx6q: support WAIT mode using cpuidle
  ARM: imx: move imx6q_cpuidle_driver into a separate file
  ARM: imx: mask gpc interrupts initially
  ARM: imx: return zero in case next event gets a large increment
  ARM: imx: Remove mx508 support
  ARM: imx: Remove mach-mx51_3ds board
  ARM: imx: use debug_ll_io_init() for imx6q
  ARM: imx: remove unused imx6q_clock_map_io()
  ARM: mach-imx: Kconfig: Do not select Babbage for MACH_IMX51_DT

Signed-off-by: Olof Johansson <olof@lixom.net>

Still, two delete/change conflicts caused by imx/cleanup:

	arch/arm/mach-imx/mach-mx50_rdp.c
	arch/arm/mach-imx/mach-mx51_3ds.c

26 files changed, 147 insertions, 1952 deletions

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 3e628fd7a67..74abf01ab9e 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -95,9 +95,6 @@ config MACH_MX27
 config ARCH_MX5
 	bool
 
-config ARCH_MX50
-	bool
-
 config ARCH_MX51
 	bool
 
@@ -164,11 +161,6 @@ config SOC_IMX5
 	select CPU_V7
 	select MXC_TZIC
 
-config SOC_IMX50
-	bool
-	select ARCH_MX50
-	select SOC_IMX5
-
 config	SOC_IMX51
 	bool
 	select ARCH_MX5
@@ -738,25 +730,10 @@ endif
 
 if ARCH_MULTI_V7
 
-comment "i.MX5 platforms:"
-
-config MACH_MX50_RDP
-	bool "Support MX50 reference design platform"
-	depends on BROKEN
-	select IMX_HAVE_PLATFORM_IMX_I2C
-	select IMX_HAVE_PLATFORM_IMX_UART
-	select IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX
-	select IMX_HAVE_PLATFORM_SPI_IMX
-	select SOC_IMX50
-	help
-	  Include support for MX50 reference design platform (RDP) board. This
-	  includes specific configurations for the board and its peripherals.
-
 comment "i.MX51 machines:"
 
 config MACH_IMX51_DT
 	bool "Support i.MX51 platforms from device tree"
-	select MACH_MX51_BABBAGE
 	select SOC_IMX51
 	help
 	  Include support for Freescale i.MX51 based platforms
@@ -777,19 +754,6 @@ config MACH_MX51_BABBAGE
 	  u-boot. This includes specific configurations for the board and its
 	  peripherals.
 
-config MACH_MX51_3DS
-	bool "Support MX51PDK (3DS)"
-	select IMX_HAVE_PLATFORM_IMX2_WDT
-	select IMX_HAVE_PLATFORM_IMX_KEYPAD
-	select IMX_HAVE_PLATFORM_IMX_UART
-	select IMX_HAVE_PLATFORM_SDHCI_ESDHC_IMX
-	select IMX_HAVE_PLATFORM_SPI_IMX
-	select MXC_DEBUG_BOARD
-	select SOC_IMX51
-	help
-	  Include support for MX51PDK (3DS) platform. This includes specific
-	  configurations for the board and its peripherals.
-
 config MACH_EUKREA_CPUIMX51SD
 	bool "Support Eukrea CPUIMX51SD module"
 	select IMX_HAVE_PLATFORM_FSL_USB2_UDC
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 0634b3152c2..c4ce0906d76 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -28,7 +28,11 @@ obj-$(CONFIG_MXC_ULPI) += ulpi.o
 obj-$(CONFIG_MXC_USE_EPIT) += epit.o
 obj-$(CONFIG_MXC_DEBUG_BOARD) += 3ds_debugboard.o
 obj-$(CONFIG_CPU_FREQ_IMX)    += cpufreq.o
-obj-$(CONFIG_CPU_IDLE) += cpuidle.o
+
+ifeq ($(CONFIG_CPU_IDLE),y)
+obj-y += cpuidle.o
+obj-$(CONFIG_SOC_IMX6Q) += cpuidle-imx6q.o
+endif
 
 ifdef CONFIG_SND_IMX_SOC
 obj-y += ssi-fiq.o
@@ -88,7 +92,6 @@ obj-$(CONFIG_MACH_EUKREA_CPUIMX35SD) += mach-cpuimx35.o
 obj-$(CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD) += eukrea_mbimxsd35-baseboard.o
 obj-$(CONFIG_MACH_VPR200) += mach-vpr200.o
 
-obj-$(CONFIG_DEBUG_LL) += lluart.o
 obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o
 obj-$(CONFIG_HAVE_IMX_MMDC) += mmdc.o
 obj-$(CONFIG_HAVE_IMX_SRC) += src.o
@@ -103,10 +106,8 @@ endif
 
 # i.MX5 based machines
 obj-$(CONFIG_MACH_MX51_BABBAGE) += mach-mx51_babbage.o
-obj-$(CONFIG_MACH_MX51_3DS) += mach-mx51_3ds.o
 obj-$(CONFIG_MACH_EUKREA_CPUIMX51SD) += mach-cpuimx51sd.o
 obj-$(CONFIG_MACH_EUKREA_MBIMXSD51_BASEBOARD) += eukrea_mbimxsd51-baseboard.o
-obj-$(CONFIG_MACH_MX50_RDP) += mach-mx50_rdp.o
 
 obj-$(CONFIG_MACH_IMX51_DT) += imx51-dt.o
 obj-$(CONFIG_SOC_IMX53) += mach-imx53.o
diff --git a/arch/arm/mach-imx/Makefile.boot b/arch/arm/mach-imx/Makefile.boot
index b27815de847..41ba1bb0437 100644
--- a/arch/arm/mach-imx/Makefile.boot
+++ b/arch/arm/mach-imx/Makefile.boot
@@ -22,10 +22,6 @@ zreladdr-$(CONFIG_SOC_IMX35)	+= 0x80008000
 params_phys-$(CONFIG_SOC_IMX35)	:= 0x80000100
 initrd_phys-$(CONFIG_SOC_IMX35)	:= 0x80800000
 
-zreladdr-$(CONFIG_SOC_IMX50)	+= 0x70008000
-params_phys-$(CONFIG_SOC_IMX50)	:= 0x70000100
-initrd_phys-$(CONFIG_SOC_IMX50)	:= 0x70800000
-
 zreladdr-$(CONFIG_SOC_IMX51)	+= 0x90008000
 params_phys-$(CONFIG_SOC_IMX51)	:= 0x90000100
 initrd_phys-$(CONFIG_SOC_IMX51)	:= 0x90800000
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index 7f2c10c7413..b30b65a8cce 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -54,9 +54,18 @@
 #define BM_CLPCR_MASK_SCU_IDLE		(0x1 << 26)
 #define BM_CLPCR_MASK_L2CC_IDLE		(0x1 << 27)
 
+#define CGPR				0x64
+#define BM_CGPR_CHICKEN_BIT		(0x1 << 17)
+
 static void __iomem *ccm_base;
 
-void __init imx6q_clock_map_io(void) { }
+void imx6q_set_chicken_bit(void)
+{
+	u32 val = readl_relaxed(ccm_base + CGPR);
+
+	val |= BM_CGPR_CHICKEN_BIT;
+	writel_relaxed(val, ccm_base + CGPR);
+}
 
 int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
 {
@@ -68,6 +77,7 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
 		break;
 	case WAIT_UNCLOCKED:
 		val |= 0x1 << BP_CLPCR_LPM;
+		val |= BM_CLPCR_ARM_CLK_DIS_ON_LPM;
 		break;
 	case STOP_POWER_ON:
 		val |= 0x2 << BP_CLPCR_LPM;
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index b0164da63b0..166e6d5ce42 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -21,7 +21,6 @@ extern void mx25_map_io(void);
 extern void mx27_map_io(void);
 extern void mx31_map_io(void);
 extern void mx35_map_io(void);
-extern void mx50_map_io(void);
 extern void mx51_map_io(void);
 extern void mx53_map_io(void);
 extern void imx1_init_early(void);
@@ -30,7 +29,6 @@ extern void imx25_init_early(void);
 extern void imx27_init_early(void);
 extern void imx31_init_early(void);
 extern void imx35_init_early(void);
-extern void imx50_init_early(void);
 extern void imx51_init_early(void);
 extern void imx53_init_early(void);
 extern void mxc_init_irq(void __iomem *);
@@ -41,7 +39,6 @@ extern void mx25_init_irq(void);
 extern void mx27_init_irq(void);
 extern void mx31_init_irq(void);
 extern void mx35_init_irq(void);
-extern void mx50_init_irq(void);
 extern void mx51_init_irq(void);
 extern void mx53_init_irq(void);
 extern void imx1_soc_init(void);
@@ -50,7 +47,6 @@ extern void imx25_soc_init(void);
 extern void imx27_soc_init(void);
 extern void imx31_soc_init(void);
 extern void imx35_soc_init(void);
-extern void imx50_soc_init(void);
 extern void imx51_soc_init(void);
 extern void imx51_init_late(void);
 extern void imx53_init_late(void);
@@ -109,26 +105,22 @@ void tzic_handle_irq(struct pt_regs *);
 #define imx27_handle_irq avic_handle_irq
 #define imx31_handle_irq avic_handle_irq
 #define imx35_handle_irq avic_handle_irq
-#define imx50_handle_irq tzic_handle_irq
 #define imx51_handle_irq tzic_handle_irq
 #define imx53_handle_irq tzic_handle_irq
 
 extern void imx_enable_cpu(int cpu, bool enable);
 extern void imx_set_cpu_jump(int cpu, void *jump_addr);
-#ifdef CONFIG_DEBUG_LL
-extern void imx_lluart_map_io(void);
-#else
-static inline void imx_lluart_map_io(void) {}
-#endif
 extern void v7_cpu_resume(void);
 extern u32 *pl310_get_save_ptr(void);
 #ifdef CONFIG_SMP
 extern void v7_secondary_startup(void);
 extern void imx_scu_map_io(void);
 extern void imx_smp_prepare(void);
+extern void imx_scu_standby_enable(void);
 #else
 static inline void imx_scu_map_io(void) {}
 static inline void imx_smp_prepare(void) {}
+static inline void imx_scu_standby_enable(void) {}
 #endif
 extern void imx_enable_cpu(int cpu, bool enable);
 extern void imx_set_cpu_jump(int cpu, void *jump_addr);
@@ -138,7 +130,7 @@ extern void imx_gpc_init(void);
 extern void imx_gpc_pre_suspend(void);
 extern void imx_gpc_post_resume(void);
 extern int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode);
-extern void imx6q_clock_map_io(void);
+extern void imx6q_set_chicken_bit(void);
 
 extern void imx_cpu_die(unsigned int cpu);
 
diff --git a/arch/arm/mach-imx/cpu-imx5.c b/arch/arm/mach-imx/cpu-imx5.c
index d88760014ff..d7ce72252a4 100644
--- a/arch/arm/mach-imx/cpu-imx5.c
+++ b/arch/arm/mach-imx/cpu-imx5.c
@@ -22,7 +22,6 @@
 static int mx5_cpu_rev = -1;
 
 #define IIM_SREV 0x24
-#define MX50_HW_ADADIG_DIGPROG	0xB0
 
 static int get_mx51_srev(void)
 {
@@ -108,41 +107,3 @@ int mx53_revision(void)
 	return mx5_cpu_rev;
 }
 EXPORT_SYMBOL(mx53_revision);
-
-static int get_mx50_srev(void)
-{
-	void __iomem *anatop = ioremap(MX50_ANATOP_BASE_ADDR, SZ_8K);
-	u32 rev;
-
-	if (!anatop) {
-		mx5_cpu_rev = -EINVAL;
-		return 0;
-	}
-
-	rev = readl(anatop + MX50_HW_ADADIG_DIGPROG);
-	rev &= 0xff;
-
-	iounmap(anatop);
-	if (rev == 0x0)
-		return IMX_CHIP_REVISION_1_0;
-	else if (rev == 0x1)
-		return IMX_CHIP_REVISION_1_1;
-	return 0;
-}
-
-/*
- * Returns:
- *	the silicon revision of the cpu
- *	-EINVAL - not a mx50
- */
-int mx50_revision(void)
-{
-	if (!cpu_is_mx50())
-		return -EINVAL;
-
-	if (mx5_cpu_rev == -1)
-		mx5_cpu_rev = get_mx50_srev();
-
-	return mx5_cpu_rev;
-}
-EXPORT_SYMBOL(mx50_revision);
diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c
new file mode 100644
index 00000000000..d533e2695f0
--- /dev/null
+++ b/arch/arm/mach-imx/cpuidle-imx6q.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clockchips.h>
+#include <linux/cpuidle.h>
+#include <linux/module.h>
+#include <asm/cpuidle.h>
+#include <asm/proc-fns.h>
+
+#include "common.h"
+#include "cpuidle.h"
+
+static atomic_t master = ATOMIC_INIT(0);
+static DEFINE_SPINLOCK(master_lock);
+
+static int imx6q_enter_wait(struct cpuidle_device *dev,
+			    struct cpuidle_driver *drv, int index)
+{
+	int cpu = dev->cpu;
+
+	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
+
+	if (atomic_inc_return(&master) == num_online_cpus()) {
+		/*
+		 * With this lock, we prevent other cpu to exit and enter
+		 * this function again and become the master.
+		 */
+		if (!spin_trylock(&master_lock))
+			goto idle;
+		imx6q_set_lpm(WAIT_UNCLOCKED);
+		cpu_do_idle();
+		imx6q_set_lpm(WAIT_CLOCKED);
+		spin_unlock(&master_lock);
+		goto done;
+	}
+
+idle:
+	cpu_do_idle();
+done:
+	atomic_dec(&master);
+	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
+
+	return index;
+}
+
+/*
+ * For each cpu, setup the broadcast timer because local timer
+ * stops for the states other than WFI.
+ */
+static void imx6q_setup_broadcast_timer(void *arg)
+{
+	int cpu = smp_processor_id();
+
+	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &cpu);
+}
+
+static struct cpuidle_driver imx6q_cpuidle_driver = {
+	.name = "imx6q_cpuidle",
+	.owner = THIS_MODULE,
+	.en_core_tk_irqen = 1,
+	.states = {
+		/* WFI */
+		ARM_CPUIDLE_WFI_STATE,
+		/* WAIT */
+		{
+			.exit_latency = 50,
+			.target_residency = 75,
+			.flags = CPUIDLE_FLAG_TIME_VALID,
+			.enter = imx6q_enter_wait,
+			.name = "WAIT",
+			.desc = "Clock off",
+		},
+	},
+	.state_count = 2,
+	.safe_state_index = 0,
+};
+
+int __init imx6q_cpuidle_init(void)
+{
+	/* Need to enable SCU standby for entering WAIT modes */
+	imx_scu_standby_enable();
+
+	/* Set chicken bit to get a reliable WAIT mode support */
+	imx6q_set_chicken_bit();
+
+	/* Configure the broadcast timer on each cpu */
+	on_each_cpu(imx6q_setup_broadcast_timer, NULL, 1);
+
+	return imx_cpuidle_init(&imx6q_cpuidle_driver);
+}
diff --git a/arch/arm/mach-imx/cpuidle.h b/arch/arm/mach-imx/cpuidle.h
index bc932d1af37..e092d1359d9 100644
--- a/arch/arm/mach-imx/cpuidle.h
+++ b/arch/arm/mach-imx/cpuidle.h
@@ -14,9 +14,14 @@
 
 #ifdef CONFIG_CPU_IDLE
 extern int imx_cpuidle_init(struct cpuidle_driver *drv);
+extern int imx6q_cpuidle_init(void);
 #else
 static inline int imx_cpuidle_init(struct cpuidle_driver *drv)
 {
 	return -ENODEV;
 }
+static inline int imx6q_cpuidle_init(void)
+{
+	return -ENODEV;
+}
 #endif
diff --git a/arch/arm/mach-imx/devices-imx50.h b/arch/arm/mach-imx/devices-imx50.h
deleted file mode 100644
index 2c290391f29..00000000000
--- a/arch/arm/mach-imx/devices-imx50.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
-
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
-
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "devices/devices-common.h"
-
-extern const struct imx_imx_uart_1irq_data imx50_imx_uart_data[];
-#define imx50_add_imx_uart(id, pdata)	\
-	imx_add_imx_uart_1irq(&imx50_imx_uart_data[id], pdata)
-
-extern const struct imx_fec_data imx50_fec_data;
-#define imx50_add_fec(pdata)	\
-	imx_add_fec(&imx50_fec_data, pdata)
-
-extern const struct imx_imx_i2c_data imx50_imx_i2c_data[];
-#define imx50_add_imx_i2c(id, pdata)	\
-	imx_add_imx_i2c(&imx50_imx_i2c_data[id], pdata)
diff --git a/arch/arm/mach-imx/devices/Kconfig b/arch/arm/mach-imx/devices/Kconfig
index 9a8f1ca7bcb..9b9ba1f4ffe 100644
--- a/arch/arm/mach-imx/devices/Kconfig
+++ b/arch/arm/mach-imx/devices/Kconfig
@@ -1,6 +1,6 @@
 config IMX_HAVE_PLATFORM_FEC
 	bool
-	default y if ARCH_MX25 || SOC_IMX27 || SOC_IMX35 || SOC_IMX50 || SOC_IMX51 || SOC_IMX53
+	default y if ARCH_MX25 || SOC_IMX27 || SOC_IMX35 || SOC_IMX51 || SOC_IMX53
 
 config IMX_HAVE_PLATFORM_FLEXCAN
 	bool
diff --git a/arch/arm/mach-imx/devices/platform-fec.c b/arch/arm/mach-imx/devices/platform-fec.c
index 2cb188ad9a0..63eba08f87b 100644
--- a/arch/arm/mach-imx/devices/platform-fec.c
+++ b/arch/arm/mach-imx/devices/platform-fec.c
@@ -35,12 +35,6 @@ const struct imx_fec_data imx35_fec_data __initconst =
 	imx_fec_data_entry_single(MX35, "imx27-fec");
 #endif
 
-#ifdef CONFIG_SOC_IMX50
-/* i.mx50 has the i.mx25 type fec */
-const struct imx_fec_data imx50_fec_data __initconst =
-	imx_fec_data_entry_single(MX50, "imx25-fec");
-#endif
-
 #ifdef CONFIG_SOC_IMX51
 /* i.mx51 has the i.mx27 type fec */
 const struct imx_fec_data imx51_fec_data __initconst =
diff --git a/arch/arm/mach-imx/devices/platform-imx-i2c.c b/arch/arm/mach-imx/devices/platform-imx-i2c.c
index 8e30e5703cd..57d342e85c2 100644
--- a/arch/arm/mach-imx/devices/platform-imx-i2c.c
+++ b/arch/arm/mach-imx/devices/platform-imx-i2c.c
@@ -70,16 +70,6 @@ const struct imx_imx_i2c_data imx35_imx_i2c_data[] __initconst = {
 };
 #endif /* ifdef CONFIG_SOC_IMX35 */
 
-#ifdef CONFIG_SOC_IMX50
-const struct imx_imx_i2c_data imx50_imx_i2c_data[] __initconst = {
-#define imx50_imx_i2c_data_entry(_id, _hwid)				\
-	imx_imx_i2c_data_entry(MX50, "imx21-i2c", _id, _hwid, SZ_4K)
-	imx50_imx_i2c_data_entry(0, 1),
-	imx50_imx_i2c_data_entry(1, 2),
-	imx50_imx_i2c_data_entry(2, 3),
-};
-#endif /* ifdef CONFIG_SOC_IMX51 */
-
 #ifdef CONFIG_SOC_IMX51
 const struct imx_imx_i2c_data imx51_imx_i2c_data[] __initconst = {
 #define imx51_imx_i2c_data_entry(_id, _hwid)				\
diff --git a/arch/arm/mach-imx/devices/platform-imx-uart.c b/arch/arm/mach-imx/devices/platform-imx-uart.c
index 67bf866a2cb..faac4aa6ca6 100644
--- a/arch/arm/mach-imx/devices/platform-imx-uart.c
+++ b/arch/arm/mach-imx/devices/platform-imx-uart.c
@@ -94,18 +94,6 @@ const struct imx_imx_uart_1irq_data imx35_imx_uart_data[] __initconst = {
 };
 #endif /* ifdef CONFIG_SOC_IMX35 */
 
-#ifdef CONFIG_SOC_IMX50
-const struct imx_imx_uart_1irq_data imx50_imx_uart_data[] __initconst = {
-#define imx50_imx_uart_data_entry(_id, _hwid)				\
-	imx_imx_uart_1irq_data_entry(MX50, _id, _hwid, SZ_4K)
-	imx50_imx_uart_data_entry(0, 1),
-	imx50_imx_uart_data_entry(1, 2),
-	imx50_imx_uart_data_entry(2, 3),
-	imx50_imx_uart_data_entry(3, 4),
-	imx50_imx_uart_data_entry(4, 5),
-};
-#endif /* ifdef CONFIG_SOC_IMX50 */
-
 #ifdef CONFIG_SOC_IMX51
 const struct imx_imx_uart_1irq_data imx51_imx_uart_data[] __initconst = {
 #define imx51_imx_uart_data_entry(_id, _hwid)				\
diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c
index ff24920699e..a96ccc7f501 100644
--- a/arch/arm/mach-imx/gpc.c
+++ b/arch/arm/mach-imx/gpc.c
@@ -101,11 +101,16 @@ static void imx_gpc_irq_mask(struct irq_data *d)
 void __init imx_gpc_init(void)
 {
 	struct device_node *np;
+	int i;
 
 	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpc");
 	gpc_base = of_iomap(np, 0);
 	WARN_ON(!gpc_base);
 
+	/* Initially mask all interrupts */
+	for (i = 0; i < IMR_NUM; i++)
+		writel_relaxed(~0, gpc_base + GPC_IMR1 + i * 4);
+
 	/* Register GPC as the secondary interrupt controller behind GIC */
 	gic_arch_extn.irq_mask = imx_gpc_irq_mask;
 	gic_arch_extn.irq_unmask = imx_gpc_irq_unmask;
diff --git a/arch/arm/mach-imx/hardware.h b/arch/arm/mach-imx/hardware.h
index 3ce7fa3bd43..911e9b31b03 100644
--- a/arch/arm/mach-imx/hardware.h
+++ b/arch/arm/mach-imx/hardware.h
@@ -72,11 +72,6 @@
  *	AVIC	0x68000000+0x100000	->	0xf5800000+0x100000
  *	X_MEMC	0xb8000000+0x010000	->	0xf5c00000+0x010000
  *	SPBA0	0x50000000+0x100000	->	0xf5400000+0x100000
- * mx50:
- *	TZIC	0x0fffc000+0x004000	->	0xf4bfc000+0x004000
- *	AIPS1	0x53f00000+0x100000	->	0xf5700000+0x100000
- *	SPBA0	0x50000000+0x100000	->	0xf5400000+0x100000
- *	AIPS2	0x63f00000+0x100000	->	0xf5300000+0x100000
  * mx51:
  *	TZIC	0x0fffc000+0x004000	->	0xf4bfc000+0x004000
  *	IRAM	0x1ffe0000+0x020000	->	0xf4fe0000+0x020000
@@ -108,7 +103,6 @@
 #include "mxc.h"
 
 #include "mx6q.h"
-#include "mx50.h"
 #include "mx51.h"
 #include "mx53.h"
 #include "mx3x.h"
diff --git a/arch/arm/mach-imx/iomux-mx50.h b/arch/arm/mach-imx/iomux-mx50.h
deleted file mode 100644
index 00f56e0e800..00000000000
--- a/arch/arm/mach-imx/iomux-mx50.h
+++ /dev/null
@@ -1,977 +0,0 @@
-/*
- * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
-
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
-
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef __MACH_IOMUX_MX50_H__
-#define __MACH_IOMUX_MX50_H__
-
-#include "iomux-v3.h"
-
-#define MX50_ELCDIF_PAD_CTRL	(PAD_CTL_PKE | PAD_CTL_DSE_HIGH)
-
-#define MX50_SD_PAD_CTRL	(PAD_CTL_HYS | PAD_CTL_PKE | PAD_CTL_PUE | \
-					PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_HIGH)
-
-#define MX50_UART_PAD_CTRL	(PAD_CTL_DSE_HIGH | PAD_CTL_PKE)
-
-#define MX50_I2C_PAD_CTRL	(PAD_CTL_ODE | PAD_CTL_DSE_HIGH | \
-					PAD_CTL_PUS_100K_UP | PAD_CTL_HYS)
-
-#define MX50_USB_PAD_CTRL	(PAD_CTL_PKE | PAD_CTL_PUE | \
-					PAD_CTL_DSE_HIGH | PAD_CTL_PUS_47K_UP)
-
-#define MX50_FEC_PAD_CTRL	(PAD_CTL_HYS | PAD_CTL_PKE | PAD_CTL_PUE | \
-					PAD_CTL_PUS_22K_UP | PAD_CTL_ODE | \
-					PAD_CTL_DSE_HIGH)
-
-#define MX50_OWIRE_PAD_CTRL	(PAD_CTL_HYS | PAD_CTL_PKE | PAD_CTL_PUE | \
-					PAD_CTL_PUS_100K_UP | PAD_CTL_ODE | \
-					PAD_CTL_DSE_HIGH | PAD_CTL_SRE_FAST)
-
-#define MX50_KEYPAD_CTRL        (PAD_CTL_HYS | PAD_CTL_PKE | PAD_CTL_PUE | \
-					PAD_CTL_PUS_100K_UP | PAD_CTL_DSE_HIGH)
-
-#define MX50_CSPI_SS_PAD	(PAD_CTL_PKE | PAD_CTL_PUE | \
-					PAD_CTL_PUS_22K_UP | PAD_CTL_DSE_HIGH)
-
-#define MX50_PAD_KEY_COL0__KEY_COL0	IOMUX_PAD(0x2CC, 0x20, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_KEY_COL0__GPIO_4_0	IOMUX_PAD(0x2CC, 0x20, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_KEY_COL0__NANDF_CLE	IOMUX_PAD(0x2CC, 0x20, 2, 0x0, 0, PAD_CTL_DSE_HIGH)
-
-#define MX50_PAD_KEY_ROW0__KEY_ROW0	IOMUX_PAD(0x2D0, 0x24, 0, 0x0, 0, MX50_KEYPAD_CTRL)
-#define MX50_PAD_KEY_ROW0__GPIO_4_1	IOMUX_PAD(0x2D0, 0x24, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_KEY_ROW0__NANDF_ALE	IOMUX_PAD(0x2D0, 0x24, 2, 0x0, 0, PAD_CTL_DSE_HIGH)
-
-#define MX50_PAD_KEY_COL1__KEY_COL1	IOMUX_PAD(0x2D4, 0x28, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_KEY_COL1__GPIO_4_2	IOMUX_PAD(0x2D4, 0x28, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_KEY_COL1__NANDF_CE0	IOMUX_PAD(0x2D4, 0x28, 2, 0x0, 0, PAD_CTL_DSE_HIGH)
-
-#define MX50_PAD_KEY_ROW1__KEY_ROW1	IOMUX_PAD(0x2D8, 0x2C, 0, 0x0, 0, MX50_KEYPAD_CTRL)
-#define MX50_PAD_KEY_ROW1__GPIO_4_3	IOMUX_PAD(0x2D8, 0x2C, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_KEY_ROW1__NANDF_CE1	IOMUX_PAD(0x2D8, 0x2C, 2, 0x0, 0, PAD_CTL_DSE_HIGH)
-
-#define MX50_PAD_KEY_COL2__KEY_COL2	IOMUX_PAD(0x2DC, 0x30, 0, 0x0, 0, MX50_KEYPAD_CTRL)
-#define MX50_PAD_KEY_COL2__GPIO_4_4	IOMUX_PAD(0x2DC, 0x30, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_KEY_COL2__NANDF_CE2	IOMUX_PAD(0x2DC, 0x30, 2, 0x0, 0, PAD_CTL_DSE_HIGH)
-
-#define MX50_PAD_KEY_ROW2__KEY_ROW2	IOMUX_PAD(0x2E0, 0x34, 0, 0x0, 0, MX50_KEYPAD_CTRL)
-#define MX50_PAD_KEY_ROW2__GPIO_4_5	IOMUX_PAD(0x2E0, 0x34, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_KEY_ROW2__NANDF_CE3	IOMUX_PAD(0x2E0, 0x34, 2, 0x0, 0, PAD_CTL_DSE_HIGH)
-
-#define MX50_PAD_KEY_COL3__KEY_COL3	IOMUX_PAD(0x2E4, 0x38, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_KEY_COL3__GPIO_4_6	IOMUX_PAD(0x2E4, 0x38, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_KEY_COL3__NANDF_READY	IOMUX_PAD(0x2E4, 0x38, 2, 0x7b4, 0, PAD_CTL_PKE | \
-							PAD_CTL_PUE | PAD_CTL_PUS_100K_UP)
-#define MX50_PAD_KEY_COL3__SDMA_EXT0	IOMUX_PAD(0x2E4, 0x38, 6, 0x7b8, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_KEY_ROW3__KEY_ROW3	IOMUX_PAD(0x2E8, 0x3C, 0, 0x0, 0, MX50_KEYPAD_CTRL)
-#define MX50_PAD_KEY_ROW3__GPIO_4_7	IOMUX_PAD(0x2E8, 0x3C, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_KEY_ROW3__NANDF_DQS	IOMUX_PAD(0x2E8, 0x3C, 2, 0x7b0, 0, PAD_CTL_DSE_HIGH)
-#define MX50_PAD_KEY_ROW3__SDMA_EXT1	IOMUX_PAD(0x2E8, 0x3C, 6, 0x7bc, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_I2C1_SCL__I2C1_SCL	IOMUX_PAD(0x2EC, 0x40, IOMUX_CONFIG_SION, 0x0, 0, \
-							MX50_I2C_PAD_CTRL)
-#define MX50_PAD_I2C1_SCL__GPIO_6_18	IOMUX_PAD(0x2EC, 0x40, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_I2C1_SCL__UART2_TXD	IOMUX_PAD(0x2EC, 0x40, 2, 0x0, 0, MX50_UART_PAD_CTRL)
-
-#define MX50_PAD_I2C1_SDA__I2C1_SDA	IOMUX_PAD(0x2F0, 0x44, IOMUX_CONFIG_SION, 0x0, 0, \
-							MX50_I2C_PAD_CTRL)
-#define MX50_PAD_I2C1_SDA__GPIO_6_19	IOMUX_PAD(0x2F0, 0x44, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_I2C1_SDA__UART2_RXD	IOMUX_PAD(0x2F0, 0x44, 2, 0x7cc, 1, MX50_UART_PAD_CTRL)
-
-#define MX50_PAD_I2C2_SCL__I2C2_SCL	IOMUX_PAD(0x2F4, 0x48, IOMUX_CONFIG_SION, 0x0, 0, \
-							MX50_I2C_PAD_CTRL)
-#define MX50_PAD_I2C2_SCL__GPIO_6_20	IOMUX_PAD(0x2F4, 0x48, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_I2C2_SCL__UART2_CTS	IOMUX_PAD(0x2F4, 0x48, 2, 0x0, 0, MX50_UART_PAD_CTRL)
-#define MX50_PAD_I2C2_SCL__DCDC_OK	IOMUX_PAD(0x2F4, 0x48, 7, 0x0, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_I2C2_SDA__I2C2_SDA	IOMUX_PAD(0x2F8, 0x4C, IOMUX_CONFIG_SION, 0x0, 0, \
-							MX50_I2C_PAD_CTRL)
-#define MX50_PAD_I2C2_SDA__GPIO_6_21	IOMUX_PAD(0x2F8, 0x4C, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_I2C2_SDA__UART2_RTS	IOMUX_PAD(0x2F8, 0x4C, 2, 0x7c8, 1, MX50_UART_PAD_CTRL)
-#define MX50_PAD_I2C2_SDA__PWRSTABLE	IOMUX_PAD(0x2F8, 0x4C, 7, 0x0, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_I2C3_SCL__I2C3_SCL	IOMUX_PAD(0x2FC, 0x50, IOMUX_CONFIG_SION, 0x0, 0, \
-							MX50_I2C_PAD_CTRL)
-#define MX50_PAD_I2C3_SCL__GPIO_6_22	IOMUX_PAD(0x2FC, 0x50, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_I2C3_SCL__FEC_MDC	IOMUX_PAD(0x2FC, 0x50, 2, 0x0, 0, PAD_CTL_DSE_HIGH)
-#define MX50_PAD_I2C3_SCL__PMIC_RDY	IOMUX_PAD(0x2FC, 0x50, 3, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_I2C3_SCL__GPT_CAPIN1	IOMUX_PAD(0x2FC, 0x50, 5, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_I2C3_SCL__USBOTG_OC	IOMUX_PAD(0x2FC, 0x50, 7, 0x7E8, 0, MX50_USB_PAD_CTRL)
-
-#define MX50_PAD_I2C3_SDA__I2C3_SDA	IOMUX_PAD(0x300, 0x54, IOMUX_CONFIG_SION, 0x0, 0, \
-								MX50_I2C_PAD_CTRL)
-#define MX50_PAD_I2C3_SDA__GPIO_6_23	IOMUX_PAD(0x300, 0x54, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_I2C3_SDA__FEC_MDIO	IOMUX_PAD(0x300, 0x54, 2, 0x774, 0, MX50_FEC_PAD_CTRL)
-#define MX50_PAD_I2C3_SDA__PWRFAIL_INT	IOMUX_PAD(0x300, 0x54, 3, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_I2C3_SDA__ALARM_DEB	IOMUX_PAD(0x300, 0x54, 4, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_I2C3_SDA__GPT_CAPIN1	IOMUX_PAD(0x300, 0x54, 5, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_I2C3_SDA__USBOTG_PWR	IOMUX_PAD(0x300, 0x54, 7, 0x0, 0, \
-							PAD_CTL_PKE | PAD_CTL_DSE_HIGH)
-
-#define MX50_PAD_PWM1__PWM1_PWMO	IOMUX_PAD(0x304, 0x58, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_PWM1__GPIO_6_24	IOMUX_PAD(0x304, 0x58, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_PWM1__USBOTG_OC	IOMUX_PAD(0x304, 0x58, 2, 0x7E8, 1, MX50_USB_PAD_CTRL)
-#define MX50_PAD_PWM1__GPT_CMPOUT1	IOMUX_PAD(0x304, 0x58, 5, 0x0, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_PWM2__PWM2_PWMO	IOMUX_PAD(0x308, 0x5C, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_PWM2__GPIO_6_25	IOMUX_PAD(0x308, 0x5C, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_PWM2__USBOTG_PWR	IOMUX_PAD(0x308, 0x5C, 2, 0x0, 0, \
-							PAD_CTL_PKE | PAD_CTL_DSE_HIGH)
-#define MX50_PAD_PWM2__DCDC_PWM		IOMUX_PAD(0x308, 0x5C, 4, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_PWM2__GPT_CMPOUT2	IOMUX_PAD(0x308, 0x5C, 5, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_PWM2__ANY_PU_RST	IOMUX_PAD(0x308, 0x5C, 7, 0x0, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_OWIRE__OWIRE		IOMUX_PAD(0x30C, 0x60, 0, 0x0, 0, MX50_OWIRE_PAD_CTRL)
-#define MX50_PAD_OWIRE__GPIO_6_26	IOMUX_PAD(0x30C, 0x60, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_OWIRE__USBH1_OC	IOMUX_PAD(0x30C, 0x60, 2, 0x0, 0, MX50_USB_PAD_CTRL)
-#define MX50_PAD_OWIRE__SSI_EXT1_CLK	IOMUX_PAD(0x30C, 0x60, 3, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_OWIRE__EPDC_PWRIRQ	IOMUX_PAD(0x30C, 0x60, 4, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_OWIRE__GPT_CMPOUT3	IOMUX_PAD(0x30C, 0x60, 5, 0x0, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_EPITO__EPITO		IOMUX_PAD(0x310, 0x64, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_EPITO__GPIO_6_27	IOMUX_PAD(0x310, 0x64, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_EPITO__USBH1_PWR	IOMUX_PAD(0x310, 0x64, 2, 0x0, 0, \
-							PAD_CTL_PKE | PAD_CTL_DSE_HIGH)
-#define MX50_PAD_EPITO__SSI_EXT2_CLK	IOMUX_PAD(0x310, 0x64, 3, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_EPITO__TOG_EN		IOMUX_PAD(0x310, 0x64, 4, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_EPITO__GPT_CLKIN	IOMUX_PAD(0x310, 0x64, 5, 0x0, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_WDOG__WDOG		IOMUX_PAD(0x314, 0x68, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_WDOG__GPIO_6_28	IOMUX_PAD(0x314, 0x68, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_WDOG__WDOG_RST		IOMUX_PAD(0x314, 0x68, 2, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_WDOG__XTAL32K		IOMUX_PAD(0x314, 0x68, 6, 0x0, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_SSI_TXFS__SSI_TXFS	IOMUX_PAD(0x318, 0x6C, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_SSI_TXFS__GPIO_6_0	IOMUX_PAD(0x318, 0x6C, 1, 0x0, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_SSI_TXC__SSI_TXC	IOMUX_PAD(0x31C, 0x70, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_SSI_TXC__GPIO_6_1	IOMUX_PAD(0x31C, 0x70, 1, 0x0, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_SSI_TXD__SSI_TXD	IOMUX_PAD(0x320, 0x74, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_SSI_TXD__GPIO_6_2	IOMUX_PAD(0x320, 0x74, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_SSI_TXD__CSPI_RDY	IOMUX_PAD(0x320, 0x74, 4, 0x6e8, 0, NO_PAD_CTRL)
-
-#define MX50_PAD_SSI_RXD__SSI_RXD	IOMUX_PAD(0x324, 0x78, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_SSI_RXD__GPIO_6_3	IOMUX_PAD(0x324, 0x78, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_SSI_RXD__CSPI_SS3	IOMUX_PAD(0x324, 0x78, 4, 0x6f4, 0, MX50_CSPI_SS_PAD)
-
-#define MX50_PAD_SSI_RXFS__AUD3_RXFS	IOMUX_PAD(0x328, 0x7C, 0, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_SSI_RXFS__GPIO_6_4	IOMUX_PAD(0x328, 0x7C, 1, 0x0, 0, NO_PAD_CTRL)
-#define MX50_PAD_SSI_RXFS__UART5_TXD	IOMUX_PAD(0x328, 0x7C, 2, 0x0, 0, MX50_UART_PAD_CTRL)
-#define MX50_PAD_SSI_RXFS__WEIM_D6	IOMUX_PAD(0x328, 0x7C, 3, 0x804, 0, NO_PAD_CTRL)
-#define MX50_PAD_SSI_RXFS__CSPI_SS2	IOMUX_PAD(0x328, 0x7C, 4, 0x6f0, 0, MX50_CSPI_SS_PAD)
-#define MX50_PAD_SSI_RXFS__FEC_C