ENGR00117720-1 MX28: Add MSL codes to support MX28EVK

Add the MSL codes(New Framework) for MX28,
including clock, gpio, pinctrl, interrupt, timer, DMA, etc.

Signed-off-by: Fred Fan <r01011@freescale.com>
Signed-off-by: Robby Cai <R63905@freescale.com>
Signed-off-by: Alejandro Gonzalez <alex.gonzalez@digi.com>

15 files changed, 907 insertions, 0 deletions

diff --git a/arch/arm/plat-mxs/include/mach/clkdev.h b/arch/arm/plat-mxs/include/mach/clkdev.h
new file mode 100644
index 000000000000..d6a82c8d5782
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/clkdev.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2009-2010 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 __ASM_MACH_CLKDEV_H
+#define __ASM_MACH_CLKDEV_H
+
+extern int __clk_get(struct clk *clk);
+extern void __clk_put(struct clk *clk);
+
+#endif
diff --git a/arch/arm/plat-mxs/include/mach/clock.h b/arch/arm/plat-mxs/include/mach/clock.h
new file mode 100644
index 000000000000..4eae0f85e3b7
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/clock.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2009-2010 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 __ASM_ARM_ARCH_CLOCK_H
+#define __ASM_ARM_ARCH_CLOCK_H
+
+#ifndef __ASSEMBLER__
+
+#include <linux/list.h>
+#include <asm/clkdev.h>
+
+struct clk {
+	int id;
+	struct clk *parent;
+	struct clk *secondary;
+	unsigned long flags;
+
+	unsigned int ref;
+	unsigned int scale_bits;
+	unsigned int enable_bits;
+	unsigned int bypass_bits;
+	unsigned int busy_bits;
+
+	unsigned int wait:1;
+	unsigned int invert:1;
+
+	void __iomem *enable_reg;
+	void __iomem *scale_reg;
+	void __iomem *bypass_reg;
+	void __iomem *busy_reg;
+
+	/*
+	 * Function ptr to set the clock to a new rate. The rate must match a
+	 * supported rate returned from round_rate. Leave blank if clock is not
+	 * programmable
+	 */
+	int (*set_rate) (struct clk *, unsigned long);
+	/*
+	 * Function ptr to get the clock rate.
+	 */
+	unsigned long (*get_rate) (struct clk *);
+	/*
+	 * Function ptr to round the requested clock rate to the nearest
+	 * supported rate that is less than or equal to the requested rate.
+	 */
+	unsigned long (*round_rate) (struct clk *, unsigned long);
+	/*
+	 * Function ptr to enable the clock. Leave blank if clock can not
+	 * be gated.
+	 */
+	int (*enable) (struct clk *);
+	/*
+	 * Function ptr to disable the clock. Leave blank if clock can not
+	 * be gated.
+	 */
+	void (*disable) (struct clk *);
+	/* Function ptr to set the parent clock of the clock. */
+	int (*set_parent) (struct clk *, struct clk *);
+};
+
+int clk_get_usecount(struct clk *clk);
+extern int clk_register(struct clk_lookup *lookup);
+extern void clk_unregister(struct clk_lookup *lookup);
+
+static inline int clk_is_busy(struct clk *clk)
+{
+	return __raw_readl(clk->busy_reg) & (1 << clk->busy_bits);
+}
+
+/* Clock flags */
+/* 0 ~ 16 attribute flags */
+#define ALWAYS_ENABLED		(1 << 0)	/* Clock cannot be disabled */
+#define RATE_FIXED		(1 << 1)	/* Fixed clock rate */
+
+/* 16 ~ 23 reservied */
+/* 24 ~ 31 run time flags */
+
+#define CLK_REF_UNIT		0x00010000
+#define CLK_REF_LIMIT		0xFFFF0000
+#define CLK_EN_MASK		0x0000FFFF
+#endif /* __ASSEMBLER__ */
+
+#endif
diff --git a/arch/arm/plat-mxs/include/mach/device.h b/arch/arm/plat-mxs/include/mach/device.h
new file mode 100644
index 000000000000..2debcc89ffec
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/device.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2009-2010 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 __ASM_ARM_ARCH_DEVICE_H
+#define __ASM_ARM_ARCH_DEVICE_H
+
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+
+#include <asm/mach/time.h>
+
+#define MXS_MAX_DEVICES 128
+
+struct mxs_sys_timer {
+	struct sys_timer timer;
+	unsigned char id;
+	unsigned char clk_sel;
+	unsigned char resv[2];
+	int irq;
+	struct clk *clk;
+	void __iomem *base;
+};
+
+struct mxs_dev_lookup {
+	char *name;
+	unsigned long lock;
+	int size;
+	struct platform_device *pdev;
+};
+
+/* Define the Platform special structure for each device type*/
+struct mxs_dma_plat_data {
+	unsigned int burst8:1;
+	unsigned int burst:1;
+	unsigned int chan_base;
+	unsigned int chan_num;
+};
+
+extern void mxs_timer_init(struct mxs_sys_timer *timer);
+
+extern void mxs_nop_release(struct device *dev);
+extern int mxs_add_devices(struct platform_device *, int num, int level);
+extern int mxs_add_device(struct platform_device *, int level);
+extern struct platform_device *mxs_get_device(char *name, int id);
+extern struct mxs_dev_lookup *mxs_get_devices(char *name);
+
+#ifdef CONFIG_MXS_ICOLL
+extern void __init avic_init_irq(void __iomem *base, int nr_irqs);
+#endif
+
+#endif
diff --git a/arch/arm/plat-mxs/include/mach/dmaengine.h b/arch/arm/plat-mxs/include/mach/dmaengine.h
new file mode 100644
index 000000000000..7d7ab696f32f
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/dmaengine.h
@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2009-2010 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 __ASM_ARM_ARCH_DMA_H
+#define __ASM_ARM_ARCH_DMA_H
+
+#ifndef ARCH_DMA_PIO_WORDS
+#define DMA_PIO_WORDS	15
+#else
+#define DMA_PIO_WORDS	ARCH_DMA_PIO_WORDS
+#endif
+
+#define MXS_DMA_ALIGNMENT	8
+
+struct mxs_dma_cmd_bits {
+	unsigned int command:2;
+#define NO_DMA_XFER	0x00
+#define DMA_WRITE	0x01
+#define DMA_READ	0x02
+#define DMA_SENSE	0x03
+
+	unsigned int chain:1;
+	unsigned int irq:1;
+	unsigned int resv:2;
+	unsigned int dec_sem:1;
+	unsigned int wait4end:1;
+	unsigned int halt_on_terminate:1;
+	unsigned int terminate_flush:1;
+	unsigned int resv2:2;
+	unsigned int pio_words:4;
+	unsigned int bytes:16;
+};
+
+struct mxs_dma_cmd {
+	unsigned long next;
+	union {
+		unsigned long data;
+		struct mxs_dma_cmd_bits bits;
+	} cmd;
+	union {
+		unsigned long address;
+		unsigned long alternate;
+	};
+	unsigned long pio_words[DMA_PIO_WORDS];
+};
+
+struct mxs_dma_desc {
+	struct mxs_dma_cmd cmd;
+	unsigned int flags;
+#define MXS_DMA_DESC_READY 0x80000000
+	/* address is desc physcial address */
+	dma_addr_t address;
+	/* buffer address */
+	void *buffer;
+	struct list_head node;
+};
+
+struct mxs_dma_chan {
+	const char *name;
+	unsigned long dev;
+	spinlock_t lock;
+	struct mxs_dma_device *dma;
+	unsigned int flags;
+#define MXS_DMA_FLAGS_IDLE	0x00000000
+#define MXS_DMA_FLAGS_BUSY	0x00000001
+#define MXS_DMA_FLAGS_FREE	0x00000000
+#define MXS_DMA_FLAGS_ALLOCATED	0x00010000
+#define MXS_DMA_FLAGS_VALID	0x80000000
+	unsigned int active_num;
+	unsigned int pending_num;
+	struct list_head active;
+	struct list_head done;
+};
+
+/* dma controller devices */
+struct mxs_dma_device {
+	struct list_head node;
+	const char *name;
+	void __iomem *base;
+	unsigned int chan_base;
+	unsigned int chan_num;
+	unsigned int data;
+	struct platform_device *pdev;
+
+	/* operations */
+	int (*enable) (struct mxs_dma_chan *, unsigned int);
+	void (*disable) (struct mxs_dma_chan *, unsigned int);
+	void (*reset) (struct mxs_dma_device *, unsigned int);
+	void (*freeze) (struct mxs_dma_device *, unsigned int);
+	void (*unfreeze) (struct mxs_dma_device *, unsigned int);
+	int (*read_semaphore) (struct mxs_dma_device *, unsigned int);
+	void (*add_semaphore) (struct mxs_dma_device *, unsigned int, unsigned);
+	void (*enable_irq) (struct mxs_dma_device *, unsigned int, int);
+	int (*irq_is_pending) (struct mxs_dma_device *, unsigned int);
+	void (*ack_irq) (struct mxs_dma_device *, unsigned int);
+
+	void (*set_target) (struct mxs_dma_device *, unsigned int, int);
+};
+
+extern int mxs_dma_device_register(struct mxs_dma_device *pdev);
+
+/* request a dma channel */
+extern int mxs_dma_request(int channel, struct device *dev, const char *name);
+/* Release a dma channel */
+extern void mxs_dma_release(int channel, struct device *dev);
+
+/* Enable dma transfer */
+extern int mxs_dma_enable(int channel);
+
+/*
+ * Disable dma transfer and the desc will be putted into done list
+ * Before calling mxs_dma_release, mxs_dma_get_cooked must called to
+ * take dma desc back.
+ */
+extern void mxs_dma_disable(int channel);
+/* reset dma channel */
+extern void mxs_dma_reset(int channel);
+/* freeze dma channel */
+extern void mxs_dma_freeze(int channel);
+/* unfreeze dma channel */
+extern void mxs_dma_unfreeze(int channel);
+/*
+ * Called to task back the done desc. if head is NULL, they will be
+ * put into done list. And must called mxs_dma_get_cooked to take
+ * them back
+ */
+extern int mxs_dma_cooked(int channel, struct list_head *head);
+
+/* Read the dma semaphore to check if there are pending dma desc */
+extern int mxs_dma_read_semaphore(int channel);
+/* check dma irq is pending */
+extern int mxs_dma_irq_is_pending(int channel);
+/* enable or disable dma irq */
+extern void mxs_dma_enable_irq(int channel, int en);
+/* clear dma irq */
+extern void mxs_dma_ack_irq(int channel);
+
+/* Used to configure channel related device selection:NOUSED in i.MX28 */
+extern void mxs_dma_set_target(int channel, int target);
+
+/* mxs dma utility functions */
+extern struct mxs_dma_desc *mxs_dma_alloc_desc(void);
+extern void mxs_dma_free_desc(struct mxs_dma_desc *);
+
+static inline unsigned int mxs_dma_cmd_address(struct mxs_dma_desc *desc)
+{
+	return desc->address += offsetof(struct mxs_dma_desc, cmd);
+}
+
+static inline int mxs_dma_desc_pending(struct mxs_dma_desc *pdesc)
+{
+	return pdesc->flags & MXS_DMA_DESC_READY;
+}
+
+/* Add a dma desc to channel*/
+extern int mxs_dma_desc_append(int channel, struct mxs_dma_desc *pdesc);
+/* Add a list of dma desc to channel*/
+extern int mxs_dma_desc_add_list(int channel, struct list_head *head);
+/* Take the working done desc back */
+extern int mxs_dma_get_cooked(int channel, struct list_head *head);
+#endif
diff --git a/arch/arm/plat-mxs/include/mach/entry-macro.S b/arch/arm/plat-mxs/include/mach/entry-macro.S
new file mode 100644
index 000000000000..353a7b2cc8fd
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/entry-macro.S
@@ -0,0 +1,36 @@
+/*
+ * Low-level IRQ helper macros for Freescale MXS-based
+ *
+ * Copyright (C) 2009-2010 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.
+ */
+
+	.macro	disable_fiq
+	.endm
+
+	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+	ldr \base, =g_icoll_base
+	ldr \base, [\base]
+	ldr \irqnr, [\base, #0x70]
+	cmp \irqnr, #0x7F
+	moveqs \irqnr, #0
+	.endm
+
+	.macro  get_irqnr_preamble, base, tmp
+	.endm
+
+	.macro  arch_ret_to_user, tmp1, tmp2
+	.endm
diff --git a/arch/arm/plat-mxs/include/mach/gpio.h b/arch/arm/plat-mxs/include/mach/gpio.h
new file mode 100644
index 000000000000..7b634149ec23
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/gpio.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 1999 ARM Limited
+ * Copyright (C) 2009-2010 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 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 __ASM_ARCH_GPIO_H__
+#define __ASM_ARCH_GPIO_H__
+
+#include <mach/hardware.h>
+#include <asm-generic/gpio.h>
+
+#define	GPIO_ID_NAME		"gpio"
+/* use gpiolib dispatchers */
+#define gpio_get_value          __gpio_get_value
+#define gpio_set_value          __gpio_set_value
+#define gpio_cansleep           __gpio_cansleep
+#define gpio_to_irq		__gpio_to_irq
+#define irq_to_gpio(irq)	((irq) - MXS_GPIO_IRQ_START)
+
+struct mxs_gpio_port;
+struct mxs_gpio_chip {
+	int (*set_dir) (struct mxs_gpio_port *, int, unsigned int);
+	int (*get) (struct mxs_gpio_port *, int);
+	void (*set) (struct mxs_gpio_port *, int, int);
+	unsigned int (*get_irq_stat) (struct mxs_gpio_port *);
+	int (*set_irq_type) (struct mxs_gpio_port *, int, unsigned int);
+	void (*unmask_irq) (struct mxs_gpio_port *, int);
+	void (*mask_irq) (struct mxs_gpio_port *, int);
+	void (*ack_irq) (struct mxs_gpio_port *, int);
+};
+
+struct mxs_gpio_port {
+	int id;
+	int irq;
+	int child_irq;
+	struct mxs_gpio_chip *chip;
+	struct gpio_chip port;
+};
+
+extern int mxs_add_gpio_port(struct mxs_gpio_port *port);
+
+static inline void
+mxs_set_gpio_chip(struct mxs_gpio_port *port, struct mxs_gpio_chip *chip)
+{
+	if (port && chip)
+		port->chip = chip;
+}
+
+#endif /* __ASM_ARCH_GPIO_H__ */
diff --git a/arch/arm/plat-mxs/include/mach/hardware.h b/arch/arm/plat-mxs/include/mach/hardware.h
new file mode 100644
index 000000000000..7fdbd054bf41
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/hardware.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2009-2010 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 __ASM_ARM_ARCH_HARDWARE_H
+#define __ASM_ARM_ARCH_HARDWARE_H
+
+#ifdef CONFIG_ARCH_MX28
+# include <mach/mx28.h>
+# define cpu_is_mx28() 1
+# else
+# define cpu_is_mx28() 0
+#endif
+
+#ifndef MXS_EXTEND_IRQS
+#define MXS_EXTEND_IRQS	0
+#endif
+
+#ifndef MXS_ARCH_NR_GPIOS
+#define MXS_ARCH_NR_GPIOS	160
+#endif
+
+#ifndef MXS_EXTEND_NR_GPIOS
+#define MXS_EXTEND_NR_GPIOS	0
+#endif
+
+#define ARCH_NR_GPIOS	(MXS_ARCH_NR_GPIOS + MXS_EXTEND_NR_GPIOS)
+
+#define MXS_GPIO_IRQ_START	ARCH_NR_IRQS
+#define MXS_EXTEND_IRQ_START	(ARCH_NR_IRQS + ARCH_NR_GPIOS)
+
+#endif /* __ASM_ARM_ARCH_HARDWARE_H */
diff --git a/arch/arm/plat-mxs/include/mach/io.h b/arch/arm/plat-mxs/include/mach/io.h
new file mode 100644
index 000000000000..7dff55ef7f12
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/io.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2009-2010 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 __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+#define __io(a) 	__typesafe_io(a)
+#define __mem_pci(a)	(a)
+#define __mem_isa(a)	(a)
+
+#define SET_REGISTER	0x4
+#define CLR_REGISTER	0x8
+#define TOG_REGISTER	0xC
+
+struct mxs_io_bank {
+	unsigned int raw;
+	unsigned int set;
+	unsigned int clr;
+	unsigned int tog;
+};
+#endif
diff --git a/arch/arm/plat-mxs/include/mach/irqs.h b/arch/arm/plat-mxs/include/mach/irqs.h
new file mode 100644
index 000000000000..f2de0d22ad41
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/irqs.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 1999 ARM Limited
+ * Copyright (C) 2009-2010 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 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 __ASM_ARCH_IRQS_H__
+#define __ASM_ARCH_IRQS_H__
+
+#include <mach/hardware.h>
+
+#define NR_IRQS	(ARCH_NR_IRQS + ARCH_NR_GPIOS + MXS_EXTEND_IRQS)
+
+#ifndef __ASSEMBLY__
+struct irq_ic_info {
+	unsigned int id_val;
+	unsigned int id_mask;
+	const char *name;
+	unsigned int base;
+};
+
+#define __irq_ic_info_attr __attribute__((__section__(".irq_ic_info.array")))
+
+extern struct irq_ic_info *current_irq_ic_info;
+#endif
+#endif /* __ASM_ARCH_SYSTEM_H__ */
diff --git a/arch/arm/plat-mxs/include/mach/memory.h b/arch/arm/plat-mxs/include/mach/memory.h
new file mode 100644
index 000000000000..79c86db78d49
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/memory.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2009-2010 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 __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#include <asm/page.h>
+#include <asm/sizes.h>
+
+/*
+ * Physical DRAM offset.
+ */
+#define PHYS_OFFSET	UL(0x40000000)
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_DMA_ZONE_SIZE
+#define MXS_DMA_ZONE_SIZE	((CONFIG_DMA_ZONE_SIZE * SZ_1M) >> PAGE_SHIFT)
+#else
+#define MXS_DMA_ZONE_SIZE	((12 * SZ_1M) >> PAGE_SHIFT)
+#endif
+
+static inline void __arch_adjust_zones(int node, unsigned long *zone_size,
+				       unsigned long *zhole_size)
+{
+	if (node != 0)
+		return;
+	/* Create separate zone to reserve memory for DMA */
+	zone_size[1] = zone_size[0] - MXS_DMA_ZONE_SIZE;
+	zone_size[0] = MXS_DMA_ZONE_SIZE;
+	zhole_size[1] = zhole_size[0];
+	zhole_size[0] = 0;
+}
+
+#define arch_adjust_zones(node, size, holes) \
+	__arch_adjust_zones(node, size, holes)
+
+#endif
+/*
+ * Virtual view <-> DMA view memory address translations
+ * virt_to_bus: Used to translate the virtual address to an
+ *		address suitable to be passed to set_dma_addr
+ * bus_to_virt: Used to convert an address for DMA operations
+ *		to an address that the kernel can use.
+ */
+#define __virt_to_bus(x)	 __virt_to_phys(x)
+#define __bus_to_virt(x)	 __phys_to_virt(x)
+
+#define ISA_DMA_THRESHOLD	(0x0003ffffULL)
+
+#define CONSISTENT_DMA_SIZE	SZ_32M
+
+#endif
diff --git a/arch/arm/plat-mxs/include/mach/pinctrl.h b/arch/arm/plat-mxs/include/mach/pinctrl.h
new file mode 100644
index 000000000000..3299e4280b90
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/pinctrl.h
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2009-2010 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 __ASM_ARM_ARCH_PINCTRL_H
+#define __ASM_ARM_ARCH_PINCTRL_H
+
+#include <linux/types.h>
+#include <linux/gpio.h>
+
+#define PINS_PER_BANK		32
+#define GPIO_TO_PINS(gpio)	((gpio) % 32)
+#define GPIO_TO_BANK(gpio)	((gpio) / 32)
+
+#define MXS_PIN_TO_GPIO(p)	(((p) & MXS_PIN_PINID_MAX) |\
+				 ((((p) >> MXS_PIN_BANK_BIT) &\
+				 MXS_PIN_BANK_MAX) * PINS_PER_BANK))
+
+#define MXS_PIN_BANK_BIT	24
+#define MXS_PIN_BANK_MAX	(0x7FFFFFFF >> (MXS_PIN_BANK_BIT - 1))
+#define MXS_PIN_PINID_MAX	((1 << MXS_PIN_BANK_BIT) - 1)
+#define MXS_PIN_TO_BANK(p)	(((p) >> MXS_PIN_BANK_BIT) & MXS_PIN_BANK_MAX)
+#define MXS_PIN_TO_PINID(p)	((p) & MXS_PIN_PINID_MAX)
+
+#define MXS_PIN_ENCODE(b, p)	\
+		((((b) & MXS_PIN_BANK_MAX) << MXS_PIN_BANK_BIT) |\
+		 ((p) & MXS_PIN_PINID_MAX))
+
+#define MXS_GPIO_MASK		0x7FFFFFFF
+#define MXS_NON_GPIO		0x80000000
+/*
+ * Each pin may be routed up to four different HW interfaces
+ * including GPIO
+ */
+enum pin_fun {
+	PIN_FUN1 = 0,
+	PIN_FUN2,
+	PIN_FUN3,
+	PIN_GPIO,
+};
+
+/*
+ * Each pin may have different output drive strength in range from
+ * 4mA to 20mA. The most common case is 4, 8 and 12 mA strengths.
+ */
+enum pad_strength {
+	PAD_4MA = 0,
+	PAD_8MA,
+	PAD_12MA,
+	PAD_RESV,
+	PAD_CLEAR = PAD_RESV,
+};
+
+/*
+ * Each pin can be programmed for 1.8V or 3.3V
+ */
+enum pad_voltage {
+	PAD_1_8V = 0,
+	PAD_3_3V,
+};
+
+/*
+ * Structure to define a group of pins and their parameters
+ */
+struct pin_desc {
+	char *name;
+	unsigned int id;
+	enum pin_fun fun;
+	enum pad_strength strength;
+	enum pad_voltage voltage;
+	unsigned pullup:1;
+	unsigned drive:1;
+	unsigned pull:1;
+	unsigned input:1;
+	unsigned data:1;
+};
+
+struct pin_bank {
+	const char *lable[sizeof(long) * 8];
+	unsigned long id;
+	struct pinctrl_chip *chip;
+	unsigned long bitmap;
+	unsigned long gpio_port;
+};
+
+struct pinctrl_chip {
+	char *name;
+	unsigned int nouse;
+	unsigned int bank_size;
+	struct pin_bank *banks;
+	/* OPS */
+	int (*pin2id) (struct pinctrl_chip *, unsigned int, unsigned int *);
+	unsigned int (*get_gpio) (struct pin_bank *, unsigned int);
+	void (*set_strength) (struct pin_bank *, unsigned int,
+			      enum pad_strength);
+	void (*set_voltage) (struct pin_bank *, unsigned int, enum pad_voltage);
+	void (*set_pullup) (struct pin_bank *, unsigned int, int);
+	void (*set_type) (struct pin_bank *, unsigned int, enum pin_fun);
+};
+
+extern int __init mxs_set_pinctrl_chip(struct pinctrl_chip *);
+
+extern unsigned int mxs_pin2gpio(unsigned int);
+extern int mxs_request_pin(unsigned int, enum pin_fun, const char *);
+extern int mxs_set_type(unsigned int, enum pin_fun, const char *);
+extern int mxs_set_strength(unsigned int, enum pad_strength, const char *);
+extern int mxs_set_voltage(unsigned int, enum pad_voltage, const char *);
+extern int mxs_set_pullup(unsigned int, int, const char *);
+extern void mxs_release_pin(unsigned int, const char *);
+#endif
diff --git a/arch/arm/plat-mxs/include/mach/system.h b/arch/arm/plat-mxs/include/mach/system.h
new file mode 100644
index 000000000000..d777723fedf3
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/system.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 1999 ARM Limited
+ * Copyright (C) 2009-2010 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 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 __ASM_ARCH_SYSTEM_H__
+#define __ASM_ARCH_SYSTEM_H__
+
+extern void arch_idle(void);
+
+void arch_reset(char mode, const char *cmd);
+int mxs_reset_block(void __iomem *hwreg, int just_enable);
+
+#endif /* __ASM_ARCH_SYSTEM_H__ */
diff --git a/arch/arm/plat-mxs/include/mach/timex.h b/arch/arm/plat-mxs/include/mach/timex.h
new file mode 100644
index 000000000000..9db3d688223a
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/timex.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 1999 ARM Limited
+ * Copyright (C) 2009-2010 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 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.
+ */
+
+/*
+ * System time clock is sourced from the 32k clock
+ */
+#define CLOCK_TICK_RATE		32768
diff --git a/arch/arm/plat-mxs/include/mach/uncompress.h b/arch/arm/plat-mxs/include/mach/uncompress.h
new file mode 100644
index 000000000000..fd4e4f845472
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/uncompress.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2009-2010 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 __ASM_PLAT_UNCOMPRESS_H
+#define __ASM_PLAT_UNCOMPRESS_H
+
+#include <mach/hardware.h>
+
+/*
+ * Register includes are for when the MMU enabled; we need to define our
+ * own stuff here for pre-MMU use
+ */
+#define UART_PORT_BASE		DUART_PHYS_ADDR
+#define UART(c)			(((volatile unsigned *)UART_PORT_BASE)[c])
+
+/*
+ * This does not append a newline
+ */
+static void putc(char c)
+{
+	/* Wait for TX fifo empty */
+	while ((UART(6) & (1 << 7)) == 0)
+		continue;
+
+	/* Write byte */
+	UART(0) = c;
+
+	/* Wait for last bit to exit the UART */
+	while (UART(6) & (1 << 3))
+		continue;
+}
+
+#define flush()	do { } while (0)
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+
+#define arch_decomp_wdog()
+
+#endif /* __ASM_PLAT_UNCOMPRESS_H */
diff --git a/arch/arm/plat-mxs/include/mach/vmalloc.h b/arch/arm/plat-mxs/include/mach/vmalloc.h
new file mode 100644
index 000000000000..cc6d5cf3133a
--- /dev/null
+++ b/arch/arm/plat-mxs/include/mach/vmalloc.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2009-2010 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.
+ */
+
+#define VMALLOC_END       (0xF0000000)