Merge branch 'imx/cpuidle' into late/dt

This resolves one non-obvious merge conflict between the imx cpuidle
patches and the imx DT changes for 3.9.

Conflicts:
	arch/arm/mach-imx/mach-imx6q.c
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/Kconfig.debug

@@ -219,12 +219,12 @@ choice
 		  Say Y here if you want kernel low-level debugging support
 		  on i.MX51.
 
-	config DEBUG_IMX50_IMX53_UART
-		bool "i.MX50 and i.MX53 Debug UART"
-		depends on SOC_IMX50 || SOC_IMX53
+	config DEBUG_IMX53_UART
+		bool "i.MX53 Debug UART"
+		depends on SOC_IMX53
 		help
 		  Say Y here if you want kernel low-level debugging support
-		  on i.MX50 or i.MX53.
+		  on i.MX53.
 
 	config DEBUG_IMX6Q_UART
 		bool "i.MX6Q Debug UART"
@@ -497,7 +497,7 @@ config DEBUG_LL_INCLUDE
 				 DEBUG_IMX21_IMX27_UART || \
 				 DEBUG_IMX31_IMX35_UART || \
 				 DEBUG_IMX51_UART || \
-				 DEBUG_IMX50_IMX53_UART ||\
+				 DEBUG_IMX53_UART ||\
 				 DEBUG_IMX6Q_UART
 	default "debug/highbank.S" if DEBUG_HIGHBANK_UART
 	default "debug/mvebu.S" if DEBUG_MVEBU_UART

arch/arm/configs/imx_v6_v7_defconfig

@@ -32,7 +32,6 @@ CONFIG_MACH_PCM043=y
 CONFIG_MACH_MX35_3DS=y
 CONFIG_MACH_VPR200=y
 CONFIG_MACH_IMX51_DT=y
-CONFIG_MACH_MX51_3DS=y
 CONFIG_MACH_EUKREA_CPUIMX51SD=y
 CONFIG_SOC_IMX53=y
 CONFIG_SOC_IMX6Q=y

arch/arm/include/debug/imx.S

@@ -34,7 +34,7 @@
 #define UART_PADDR	0x43f90000
 #elif defined (CONFIG_DEBUG_IMX51_UART)
 #define UART_PADDR	0x73fbc000
-#elif defined (CONFIG_DEBUG_IMX50_IMX53_UART)
+#elif defined (CONFIG_DEBUG_IMX53_UART)
 #define UART_PADDR	0x53fbc000
 #elif defined (CONFIG_DEBUG_IMX6Q_UART)
 #define UART_PADDR	IMX6Q_DEBUG_UART_BASE

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

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

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

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;

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);
@@ -109,27 +105,23 @@ 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
 #define imx6q_handle_irq gic_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);
@@ -139,7 +131,7 @@ 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);
 extern int imx_cpu_kill(unsigned int cpu);

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);

arch/arm/mach-imx/cpuidle-imx6q.c

+/*
+ * 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);
+}

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

arch/arm/mach-imx/devices-imx50.h

-/*
- * 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)

arch/arm/mach-imx/devices/Kconfig

 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

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 =

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)				\

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)				\

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;

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"

arch/arm/mach-imx/lluart.c

-/*
- * Copyright 2011 Freescale Semiconductor, Inc.
- * Copyright 2011 Linaro Ltd.
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-#include <linux/init.h>
-#include <asm/page.h>
-#include <asm/sizes.h>
-#include <asm/mach/map.h>
-
-#include "hardware.h"
-
-#define IMX6Q_UART1_BASE_ADDR	0x02020000
-#define IMX6Q_UART2_BASE_ADDR	0x021e8000
-#define IMX6Q_UART3_BASE_ADDR	0x021ec000
-#define IMX6Q_UART4_BASE_ADDR	0x021f0000
-#define IMX6Q_UART5_BASE_ADDR	0x021f4000
-
-/*
- * IMX6Q_UART_BASE_ADDR is put in the middle to force the expansion
- * of IMX6Q_UART##n##_BASE_ADDR.
- */
-#define IMX6Q_UART_BASE_ADDR(n)	IMX6Q_UART##n##_BASE_ADDR
-#define IMX6Q_UART_BASE(n)	IMX6Q_UART_BASE_ADDR(n)
-#define IMX6Q_DEBUG_UART_BASE	IMX6Q_UART_BASE(CONFIG_DEBUG_IMX6Q_UART_PORT)
-
-static struct map_desc imx_lluart_desc = {
-#ifdef CONFIG_DEBUG_IMX6Q_UART
-	.virtual	= IMX_IO_P2V(IMX6Q_DEBUG_UART_BASE),
-	.pfn		= __phys_to_pfn(IMX6Q_DEBUG_UART_BASE),
-	.length		= 0x4000,
-	.type		= MT_DEVICE,
-#endif
-};
-
-void __init imx_lluart_map_io(void)
-{
-	if (imx_lluart_desc.virtual)
-		iotable_init(&imx_lluart_desc, 1);
-}

arch/arm/mach-imx/mach-imx6q.c

@@ -13,7 +13,6 @@
 #include <linux/clk.h>
 #include <linux/clkdev.h>
 #include <linux/cpu.h>
-#include <linux/cpuidle.h>
 #include <linux/delay.h>
 #include <linux/export.h>
 #include <linux/init.h>
@@ -28,11 +27,11 @@
 #include <linux/regmap.h>
 #include <linux/micrel_phy.h>
 #include <linux/mfd/syscon.h>
-#include <asm/cpuidle.h>
 #include <asm/smp_twd.h>
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/hardware/gic.h>
 #include <asm/mach/arch.h>
+#include <asm/mach/map.h>
 #include <asm/mach/time.h>
 #include <asm/system_misc.h>
 
@@ -203,14 +202,6 @@ static void __init imx6q_init_machine(void)
 	imx6q_1588_init();
 }
 
-static struct cpuidle_driver imx6q_cpuidle_driver = {
-	.name			= "imx6q_cpuidle",
-	.owner			= THIS_MODULE,
-	.en_core_tk_irqen	= 1,
-	.states[0]		= ARM_CPUIDLE_WFI_STATE,
-	.state_count		= 1,
-};
-
 #define OCOTP_CFG3			0x440
 #define OCOTP_CFG3_SPEED_SHIFT		16
 #define OCOTP_CFG3_SPEED_1P2GHZ		0x3
@@ -271,7 +262,12 @@ struct platform_device imx6q_cpufreq_pdev = {
 
 static void __init imx6q_init_late(void)
 {
-	imx_cpuidle_init(&imx6q_cpuidle_driver);
+	/*
+	 * WAIT mode is broken on TO 1.0 and 1.1, so there is no point
+	 * to run cpuidle on them.
+	 */
+	if (imx6q_revision() > IMX_CHIP_REVISION_1_1)
+		imx6q_cpuidle_init();
 
 	if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ)) {
 		imx6q_opp_init(&imx6q_cpufreq_pdev.dev);
@@ -281,9 +277,8 @@ static void __init imx6q_init_late(void)
 
 static void __init imx6q_map_io(void)
 {
-	imx_lluart_map_io();
+	debug_ll_io_init();
 	imx_scu_map_io();
-	imx6q_clock_map_io();
 }
 
 static const struct of_device_id imx6q_irq_match[] __initconst = {

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

-/*
- * 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 <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-
-#include <asm/irq.h>
-#include <asm/setup.h>
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/time.h>
-
-#include "common.h"
-#include "devices-imx50.h"
-#include "hardware.h"
-#include "iomux-mx50.h"
-
-#define FEC_EN		IMX_GPIO_NR(6, 23)
-#define FEC_RESET_B	IMX_GPIO_NR(4, 12)
-
-static iomux_v3_cfg_t mx50_rdp_pads[] __initdata = {
-	/* SD1 */
-	MX50_PAD_ECSPI2_SS0__GPIO_4_19,
-	MX50_PAD_EIM_CRE__GPIO_1_27,
-	MX50_PAD_SD1_CMD__SD1_CMD,
-
-	MX50_PAD_SD1_CLK__SD1_CLK,
-	MX50_PAD_SD1_D0__SD1_D0,
-	MX50_PAD_SD1_D1__SD1_D1,
-	MX50_PAD_SD1_D2__SD1_D2,
-	MX50_PAD_SD1_D3__SD1_D3,
-
-	/* SD2 */
-	MX50_PAD_SD2_CD__GPIO_5_17,
-	MX50_PAD_SD2_WP__GPIO_5_16,
-	MX50_PAD_SD2_CMD__SD2_CMD,
-	MX50_PAD_SD2_CLK__SD2_CLK,
-	MX50_PAD_SD2_D0__SD2_D0,
-	MX50_PAD_SD2_D1__SD2_D1,
-	MX50_PAD_SD2_D2__SD2_D2,
-	MX50_PAD_SD2_D3__SD2_D3,
-	MX50_PAD_SD2_D4__SD2_D4,
-	MX50_PAD_SD2_D5__SD2_D5,
-	MX50_PAD_SD2_D6__SD2_D6,
-	MX50_PAD_SD2_D7__SD2_D7,
-
-	/* SD3 */
-	MX50_PAD_SD3_CMD__SD3_CMD,
-	MX50_PAD_SD3_CLK__SD3_CLK,
-	MX50_PAD_SD3_D0__SD3_D0,
-	MX50_PAD_SD3_D1__SD3_D1,
-	MX50_PAD_SD3_D2__SD3_D2,
-	MX50_PAD_SD3_D3__SD3_D3,
-	MX50_PAD_SD3_D4__SD3_D4,
-	MX50_PAD_SD3_D5__SD3_D5,
-	MX50_PAD_SD3_D6__SD3_D6,
-	MX50_PAD_SD3_D7__SD3_D7,
-
-	/* PWR_INT */
-	MX50_PAD_ECSPI2_MISO__GPIO_4_18,
-
-	/* UART pad setting */
-	MX50_PAD_UART1_TXD__UART1_TXD,
-	MX50_PAD_UART1_RXD__UART1_RXD,
-	MX50_PAD_UART1_RTS__UART1_RTS,
-	MX50_PAD_UART2_TXD__UART2_TXD,
-	MX50_PAD_UART2_RXD__UART2_RXD,
-	MX50_PAD_UART2_CTS__UART2_CTS,
-	MX50_PAD_UART2_RTS__UART2_RTS,
-
-	MX50_PAD_I2C1_SCL__I2C1_SCL,
-	MX50_PAD_I2C1_SDA__I2C1_SDA,
-	MX50_PAD_I2C2_SCL__I2C2_SCL,
-	MX50_PAD_I2C2_SDA__I2C2_SDA,
-
-	MX50_PAD_EPITO__USBH1_PWR,
-	/* Need to comment below line if
-	 * one needs to debug owire.
-	 */
-	MX50_PAD_OWIRE__USBH1_OC,
-	/* using gpio to control otg pwr */
-	MX50_PAD_PWM2__GPIO_6_25,
-	MX50_PAD_I2C3_SCL__USBOTG_OC,
-
-	MX50_PAD_SSI_RXC__FEC_MDIO,
-	MX50_PAD_SSI_RXFS__FEC_MDC,
-	MX50_PAD_DISP_D0__FEC_TXCLK,
-	MX50_PAD_DISP_D1__FEC_RX_ER,
-	MX50_PAD_DISP_D2__FEC_RX_DV,
-	MX50_PAD_DISP_D3__FEC_RXD1,
-	MX50_PAD_DISP_D4__FEC_RXD0,
-	MX50_PAD_DISP_D5__FEC_TX_EN,
-	MX50_PAD_DISP_D6__FEC_TXD1,
-	MX50_PAD_DISP_D7__FEC_TXD0,
-	MX50_PAD_I2C3_SDA__GPIO_6_23,
-	MX50_PAD_ECSPI1_SCLK__GPIO_4_12,
-
-	MX50_PAD_CSPI_SS0__CSPI_SS0,
-	MX50_PAD_ECSPI1_MOSI__CSPI_SS1,
-	MX50_PAD_CSPI_MOSI__CSPI_MOSI,
-	MX50_PAD_CSPI_MISO__CSPI_MISO,
-
-	/* SGTL500_OSC_EN */
-	MX50_PAD_UART1_CTS__GPIO_6_8,
-
-	/* SGTL_AMP_SHDN */
-	MX50_PAD_UART3_RXD__GPIO_6_15,
-
-	/* Keypad */
-	MX50_PAD_KEY_COL0__KEY_COL0,
-	MX50_PAD_KEY_ROW0__KEY_ROW0,
-	MX50_PAD_KEY_COL1__KEY_COL1,
-	MX50_PAD_KEY_ROW1__KEY_ROW1,
-	MX50_PAD_KEY_COL2__KEY_COL2,
-	MX50_PAD_KEY_ROW2__KEY_ROW2,
-	MX50_PAD_KEY_COL3__KEY_COL3,
-	MX50_PAD_KEY_ROW3__KEY_ROW3,
-	MX50_PAD_EIM_DA0__KEY_COL4,
-	MX50_PAD_EIM_DA1__KEY_ROW4,
-	MX50_PAD_EIM_DA2__KEY_COL5,
-	MX50_PAD_EIM_DA3__KEY_ROW5,
-	MX50_PAD_EIM_DA4__KEY_COL6,
-	MX50_PAD_EIM_DA5__KEY_ROW6,
-	MX50_PAD_EIM_DA6__KEY_COL7,
-	MX50_PAD_EIM_DA7__KEY_ROW7,
-	/*EIM pads */
-	MX50_PAD_EIM_DA8__GPIO_1_8,
-	MX50_PAD_EIM_DA9__GPIO_1_9,
-	MX50_PAD_EIM_DA10__GPIO_1_10,
-	MX50_PAD_EIM_DA11__GPIO_1_11,
-	MX50_PAD_EIM_DA12__GPIO_1_12,
-	MX50_PAD_EIM_DA13__GPIO_1_13,
-	MX50_PAD_EIM_DA14__GPIO_1_14,
-	MX50_PAD_EIM_DA15__GPIO_1_15,
-	MX50_PAD_EIM_CS2__GPIO_1_16,
-	MX50_PAD_EIM_CS1__GPIO_1_17,
-	MX50_PAD_EIM_CS0__GPIO_1_18,
-	MX50_PAD_EIM_EB0__GPIO_1_19,
-	MX50_PAD_EIM_EB1__GPIO_1_20,
-	MX50_PAD_EIM_WAIT__GPIO_1_21,
-	MX50_PAD_EIM_BCLK__GPIO_1_22,
-	MX50_PAD_EIM_RDY__GPIO_1_23,
-	MX50_PAD_EIM_OE__GPIO_1_24,
-};
-
-/* Serial ports */
-static const struct imxuart_platform_data uart_pdata __initconst = {
-	.flags = IMXUART_HAVE_RTSCTS,
-};
-
-static const struct fec_platform_data fec_data __initconst = {
-	.phy = PHY_INTERFACE_MODE_RMII,
-};
-
-static inline void mx50_rdp_fec_reset(void)
-{
-	gpio_request(FEC_EN, "fec-en");
-	gpio_direction_output(FEC_EN, 0);
-	gpio_request(FEC_RESET_B, "fec-reset_b");
-	gpio_direction_output(FEC_RESET_B, 0);
-	msleep(1);
-	gpio_set_value(FEC_RESET_B, 1);
-}
-
-static const struct imxi2c_platform_data i2c_data __initconst = {
-	.bitrate = 100000,
-};
-
-/*
- * Board specific initialization.
- */
-static void __init mx50_rdp_board_init(void)
-{
-	imx50_soc_init();
-
-	mxc_iomux_v3_setup_multiple_pads(mx50_rdp_pads,
-					ARRAY_SIZE(mx50_rdp_pads));
-
-	imx50_add_imx_uart(0, &uart_pdata);
-	imx50_add_imx_uart(1, &uart_pdata);
-	mx50_rdp_fec_reset();
-	imx50_add_fec(&fec_data);
-	imx50_add_imx_i2c(0, &i2c_data);
-	imx50_add_imx_i2c(1, &i2c_data);
-	imx50_add_imx_i2c(2, &i2c_data);
-}
-
-static void __init mx50_rdp_timer_init(void)
-{
-	mx50_clocks_init(32768, 24000000, 22579200);
-}
-
-static struct sys_timer mx50_rdp_timer = {
-	.init	= mx50_rdp_timer_init,
-};
-
-MACHINE_START(MX50_RDP, "Freescale MX50 Reference Design Platform")
-	.map_io = mx50_map_io,
-	.init_early = imx50_init_early,
-	.init_irq = mx50_init_irq,
-	.handle_irq = imx50_handle_irq,
-	.timer = &mx50_rdp_timer,
-	.init_machine = mx50_rdp_board_init,
-	.restart	= mxc_restart,
-MACHINE_END

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

-/*
- * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright (C) 2010 Jason Wang <jason77.wang@gmail.com>
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-#include <linux/irq.h>
-#include <linux/platform_device.h>
-#include <linux/spi/spi.h>
-#include <linux/gpio.h>
-
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/time.h>
-
-#include "3ds_debugboard.h"
-#include "common.h"
-#include "devices-imx51.h"
-#include "hardware.h"
-#include "iomux-mx51.h"
-
-#define MX51_3DS_ECSPI2_CS	(GPIO_PORTC + 28)
-
-static iomux_v3_cfg_t mx51_3ds_pads[] = {
-	/* UART1 */
-	MX51_PAD_UART1_RXD__UART1_RXD,
-	MX51_PAD_UART1_TXD__UART1_TXD,
-	MX51_PAD_UART1_RTS__UART1_RTS,
-	MX51_PAD_UART1_CTS__UART1_CTS,
-
-	/* UART2 */
-	MX51_PAD_UART2_RXD__UART2_RXD,
-	MX51_PAD_UART2_TXD__UART2_TXD,
-	MX51_PAD_EIM_D25__UART2_CTS,
-	MX51_PAD_EIM_D26__UART2_RTS,
-
-	/* UART3 */
-	MX51_PAD_UART3_RXD__UART3_RXD,
-	MX51_PAD_UART3_TXD__UART3_TXD,
-	MX51_PAD_EIM_D24__UART3_CTS,
-	MX51_PAD_EIM_D27__UART3_RTS,
-
-	/* CPLD PARENT IRQ PIN */
-	MX51_PAD_GPIO1_6__GPIO1_6,
-
-	/* KPP */
-	MX51_PAD_KEY_ROW0__KEY_ROW0,
-	MX51_PAD_KEY_ROW1__KEY_ROW1,
-	MX51_PAD_KEY_ROW2__KEY_ROW2,
-	MX51_PAD_KEY_ROW3__KEY_ROW3,
-	MX51_PAD_KEY_COL0__KEY_COL0,
-	MX51_PAD_KEY_COL1__KEY_COL1,
-	MX51_PAD_KEY_COL2__KEY_COL2,
-	MX51_PAD_KEY_COL3__KEY_COL3,
-	MX51_PAD_KEY_COL4__KEY_COL4,
-	MX51_PAD_KEY_COL5__KEY_COL5,
-
-	/* eCSPI2 */
-	MX51_PAD_NANDF_RB2__ECSPI2_SCLK,
-	MX51_PAD_NANDF_RB3__ECSPI2_MISO,
-	MX51_PAD_NANDF_D15__ECSPI2_MOSI,
-	MX51_PAD_NANDF_D12__GPIO3_28,
-};
-
-/* Serial ports */
-static const struct imxuart_platform_data uart_pdata __initconst = {
-	.flags = IMXUART_HAVE_RTSCTS,
-};
-
-static int mx51_3ds_board_keymap[] = {
-	KEY(0, 0, KEY_1),
-	KEY(0, 1, KEY_2),
-	KEY(0, 2, KEY_3),
-	KEY(0, 3, KEY_F1),
-	KEY(0, 4, KEY_UP),
-	KEY(0, 5, KEY_F2),
-
-	KEY(1, 0, KEY_4),
-	KEY(1, 1, KEY_5),
-	KEY(1, 2, KEY_6),
-	KEY(1, 3, KEY_LEFT),
-	KEY(1, 4, KEY_SELECT),
-	KEY(1, 5, KEY_RIGHT),
-
-	KEY(2, 0, KEY_7),
-	KEY(2, 1, KEY_8),
-	KEY(2, 2, KEY_9),
-	KEY(2, 3, KEY_F3),
-	KEY(2, 4, KEY_DOWN),
-	KEY(2, 5, KEY_F4),
-
-	KEY(3, 0, KEY_0),
-	KEY(3, 1, KEY_OK),
-	KEY(3, 2, KEY_ESC),
-	KEY(3, 3, KEY_ENTER),
-	KEY(3, 4, KEY_MENU),
-	KEY(3, 5, KEY_BACK)
-};
-
-static const struct matrix_keymap_data mx51_3ds_map_data __initconst = {
-	.keymap		= mx51_3ds_board_keymap,
-	.keymap_size	= ARRAY_SIZE(mx51_3ds_board_keymap),
-};
-
-static int mx51_3ds_spi2_cs[] = {
-	MXC_SPI_CS(0),
-	MX51_3DS_ECSPI2_CS,
-};
-
-static const struct spi_imx_master mx51_3ds_ecspi2_pdata __initconst = {
-	.chipselect	= mx51_3ds_spi2_cs,
-	.num_chipselect	= ARRAY_SIZE(mx51_3ds_spi2_cs),
-};
-
-static struct spi_board_info mx51_3ds_spi_nor_device[] = {
-	{
-	 .modalias = "m25p80",
-	 .max_speed_hz = 25000000,	/* max spi clock (SCK) speed in HZ */
-	 .bus_num = 1,
-	 .chip_select = 1,
-	 .mode = SPI_MODE_0,
-	 .platform_data = NULL,},
-};
-
-/*
- * Board specific initialization.
- */
-static void __init mx51_3ds_init(void)
-{
-	imx51_soc_init();
-
-	mxc_iomux_v3_setup_multiple_pads(mx51_3ds_pads,
-					ARRAY_SIZE(mx51_3ds_pads));
-
-	imx51_add_imx_uart(0, &uart_pdata);
-	imx51_add_imx_uart(1, &uart_pdata);
-	imx51_add_imx_uart(2, &uart_pdata);
-
-	imx51_add_ecspi(1, &mx51_3ds_ecspi2_pdata);
-	spi_register_board_info(mx51_3ds_spi_nor_device,
-				ARRAY_SIZE(mx51_3ds_spi_nor_device));
-
-	if (mxc_expio_init(MX51_CS5_BASE_ADDR, IMX_GPIO_NR(1, 6)))
-		printk(KERN_WARNING "Init of the debugboard failed, all "
-				    "devices on the board are unusable.\n");
-
-	imx51_add_sdhci_esdhc_imx(0, NULL);
-	imx51_add_imx_keypad(&mx51_3ds_map_data);
-	imx51_add_imx2_wdt(0);
-}
-
-static void __init mx51_3ds_timer_init(void)
-{
-	mx51_clocks_init(32768, 24000000, 22579200, 0);
-}
-
-static struct sys_timer mx51_3ds_timer = {
-	.init = mx51_3ds_timer_init,
-};
-
-MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board")
-	/* Maintainer: Freescale Semiconductor, Inc. */
-	.atag_offset = 0x100,
-	.map_io = mx51_map_io,
-	.init_early = imx51_init_early,
-	.init_irq = mx51_init_irq,
-	.handle_irq = imx51_handle_irq,
-	.timer = &mx51_3ds_timer,
-	.init_machine = mx51_3ds_init,
-	.init_late	= imx51_init_late,
-	.restart	= mxc_restart,
-MACHINE_END

arch/arm/mach-imx/mm-imx5.c

@@ -23,16 +23,6 @@
 #include "hardware.h"
 #include "iomux-v3.h"
 
-/*
- * Define the MX50 memory map.
- */
-static struct map_desc mx50_io_desc[] __initdata = {
-	imx_map_entry(MX50, TZIC, MT_DEVICE),
-	imx_map_entry(MX50, SPBA0, MT_DEVICE),
-	imx_map_entry(MX50, AIPS1, MT_DEVICE),
-	imx_map_entry(MX50, AIPS2, MT_DEVICE),
-};
-
 /*
  * Define the MX51 memory map.
  */
@@ -59,11 +49,6 @@ static struct map_desc mx53_io_desc[] __initdata = {
  * system startup to create static physical to virtual memory mappings
  * for the IO modules.
  */
-void __init mx50_map_io(void)
-{
-	iotable_init(mx50_io_desc, ARRAY_SIZE(mx50_io_desc));
-}
-
 void __init mx51_map_io(void)
 {
 	iotable_init(mx51_io_desc, ARRAY_SIZE(mx51_io_desc));
@@ -74,13 +59,6 @@ void __init mx53_map_io(void)
 	iotable_init(mx53_io_desc, ARRAY_SIZE(mx53_io_desc));
 }
 
-void __init imx50_init_early(void)
-{
-	mxc_set_cpu_type(MXC_CPU_MX50);
-	mxc_iomux_v3_init(MX50_IO_ADDRESS(MX50_IOMUXC_BASE_ADDR));
-	mxc_arch_reset_init(MX50_IO_ADDRESS(MX50_WDOG_BASE_ADDR));
-}
-
 /*
  * The MIPI HSC unit has been removed from the i.MX51 Reference Manual by
  * the Freescale marketing division. However this did not remove the
@@ -115,11 +93,6 @@ void __init imx53_init_early(void)
 	mxc_arch_reset_init(MX53_IO_ADDRESS(MX53_WDOG1_BASE_ADDR));
 }
 
-void __init mx50_init_irq(void)
-{
-	tzic_init_irq(MX50_IO_ADDRESS(MX50_TZIC_BASE_ADDR));
-}
-
 void __init mx51_init_irq(void)
 {
 	tzic_init_irq(MX51_IO_ADDRESS(MX51_TZIC_BASE_ADDR));
@@ -148,31 +121,10 @@ static struct sdma_platform_data imx51_sdma_pdata __initdata = {
 	.script_addrs = &imx51_sdma_script,
 };
 
-static const struct resource imx50_audmux_res[] __initconst = {
-	DEFINE_RES_MEM(MX50_AUDMUX_BASE_ADDR, SZ_16K),
-};
-
 static const struct resource imx51_audmux_res[] __initconst = {
 	DEFINE_RES_MEM(MX51_AUDMUX_BASE_ADDR, SZ_16K),
 };
 
-void __init imx50_soc_init(void)
-{
-	mxc_device_init();
-
-	/* i.mx50 has the i.mx35 type gpio */
-	mxc_register_gpio("imx35-gpio", 0, MX50_GPIO1_BASE_ADDR, SZ_16K, MX50_INT_GPIO1_LOW, MX50_INT_GPIO1_HIGH);
-	mxc_register_gpio("imx35-gpio", 1, MX50_GPIO2_BASE_ADDR, SZ_16K, MX50_INT_GPIO2_LOW, MX50_INT_GPIO2_HIGH);
-	mxc_register_gpio("imx35-gpio", 2, MX50_GPIO3_BASE_ADDR, SZ_16K, MX50_INT_GPIO3_LOW, MX50_INT_GPIO3_HIGH);
-	mxc_register_gpio("imx35-gpio", 3, MX50_GPIO4_BASE_ADDR, SZ_16K, MX50_INT_GPIO4_LOW, MX50_INT_GPIO4_HIGH);
-	mxc_register_gpio("imx35-gpio", 4, MX50_GPIO5_BASE_ADDR, SZ_16K, MX50_INT_GPIO5_LOW, MX50_INT_GPIO5_HIGH);
-	mxc_register_gpio("imx35-gpio", 5, MX50_GPIO6_BASE_ADDR, SZ_16K, MX50_INT_GPIO6_LOW, MX50_INT_GPIO6_HIGH);
-
-	/* i.mx50 has the i.mx31 type audmux */
-	platform_device_register_simple("imx31-audmux", 0, imx50_audmux_res,
-					ARRAY_SIZE(imx50_audmux_res));
-}
-
 void __init imx51_soc_init(void)
 {
 	mxc_device_init();

arch/arm/mach-imx/mxc.h

@@ -32,7 +32,6 @@
 #define MXC_CPU_MX27		27
 #define MXC_CPU_MX31		31
 #define MXC_CPU_MX35		35
-#define MXC_CPU_MX50		50
 #define MXC_CPU_MX51		51
 #define MXC_CPU_MX53		53
 
@@ -126,18 +125,6 @@ extern unsigned int __mxc_cpu_type;
 # define cpu_is_mx35()		(0)
 #endif
 
-#ifdef CONFIG_SOC_IMX50
-# ifdef mxc_cpu_type
-#  undef mxc_cpu_type
-#  define mxc_cpu_type __mxc_cpu_type
-# else
-#  define mxc_cpu_type MXC_CPU_MX50
-# endif
-# define cpu_is_mx50()		(mxc_cpu_type == MXC_CPU_MX50)
-#else
-# define cpu_is_mx50()		(0)
-#endif
-
 #ifdef CONFIG_SOC_IMX51
 # ifdef mxc_cpu_type
 #  undef mxc_cpu_type

arch/arm/mach-imx/platsmp.c

@@ -20,6 +20,8 @@
 #include "common.h"
 #include "hardware.h"
 
+#define SCU_STANDBY_ENABLE	(1 << 5)
+
 static void __iomem *scu_base;
 
 static struct map_desc scu_io_desc __initdata = {
@@ -42,6 +44,14 @@ void __init imx_scu_map_io(void)
 	scu_base = IMX_IO_ADDRESS(base);
 }
 
+void imx_scu_standby_enable(void)
+{
+	u32 val = readl_relaxed(scu_base);
+
+	val |= SCU_STANDBY_ENABLE;
+	writel_relaxed(val, scu_base);
+}
+
 static void __cpuinit imx_secondary_init(unsigned int cpu)
 {
 	/*

arch/arm/mach-imx/pm-imx5.c

@@ -34,7 +34,7 @@
 
 /*
  * set cpu low power mode before WFI instruction. This function is called
- * mx5 because it can be used for mx50, mx51, and mx53.
+ * mx5 because it can be used for mx51, and mx53.
  */
 static void mx5_cpu_lp_set(enum mxc_cpu_pwr_mode mode)
 {
@@ -85,9 +85,6 @@ static void mx5_cpu_lp_set(enum mxc_cpu_pwr_mode mode)
 	__raw_writel(plat_lpc, MXC_CORTEXA8_PLAT_LPC);
 	__raw_writel(ccm_clpcr, MXC_CCM_CLPCR);
 	__raw_writel(arm_srpgcr, MXC_SRPG_ARM_SRPGCR);
-
-	/* Enable NEON SRPG for all but MX50TO1.0. */
-	if (mx50_revision() != IMX_CHIP_REVISION_1_0)
 	__raw_writel(arm_srpgcr, MXC_SRPG_NEON_SRPGCR);
 
 	if (stop_mode) {

arch/arm/mach-imx/time.c

@@ -152,7 +152,8 @@ static int v2_set_next_event(unsigned long evt,
 
 	__raw_writel(tcmp, timer_base + V2_TCMP);
 
-	return (int)(tcmp - __raw_readl(timer_base + V2_TCN)) < 0 ?
+	return evt < 0x7fffffff &&
+		(int)(tcmp - __raw_readl(timer_base + V2_TCN)) < 0 ?
 				-ETIME : 0;
 }