[U-Boot] [PATCH 01/10] mx27: basic cpu support

Ilya Yanok yanok at emcraft.com
Wed May 6 20:30:24 CEST 2009


This patch adds generic code to support Freescale's i.MX27 SoCs.

Signed-off-by: Ilya Yanok <yanok at emcraft.com>
---
 cpu/arm926ejs/mx27/Makefile          |   44 +++
 cpu/arm926ejs/mx27/generic.c         |  205 ++++++++++++++
 cpu/arm926ejs/mx27/interrupt.c       |  201 ++++++++++++++
 include/asm-arm/arch-mx27/clock.h    |   17 ++
 include/asm-arm/arch-mx27/imx-regs.h |  504 ++++++++++++++++++++++++++++++++++
 5 files changed, 971 insertions(+), 0 deletions(-)
 create mode 100644 cpu/arm926ejs/mx27/Makefile
 create mode 100644 cpu/arm926ejs/mx27/generic.c
 create mode 100644 cpu/arm926ejs/mx27/interrupt.c
 create mode 100644 include/asm-arm/arch-mx27/clock.h
 create mode 100644 include/asm-arm/arch-mx27/imx-regs.h

diff --git a/cpu/arm926ejs/mx27/Makefile b/cpu/arm926ejs/mx27/Makefile
new file mode 100644
index 0000000..c86f3c2
--- /dev/null
+++ b/cpu/arm926ejs/mx27/Makefile
@@ -0,0 +1,44 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# 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., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(SOC).a
+
+COBJS	= interrupt.o generic.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+
+all:	$(obj).depend $(LIB)
+
+$(LIB):	$(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/cpu/arm926ejs/mx27/generic.c b/cpu/arm926ejs/mx27/generic.c
new file mode 100644
index 0000000..fdbc8b7
--- /dev/null
+++ b/cpu/arm926ejs/mx27/generic.c
@@ -0,0 +1,205 @@
+/*
+ *  Copyright (c) 2008 Eric Jarrige <eric.jarrige at armadeus.org>
+ *  Copyright (c) 2009 Ilya Yanok <yanok at emcraft.com>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <div64.h>
+#include <asm/arch/imx-regs.h>
+/*
+ *  get the system pll clock in Hz
+ *
+ *                  mfi + mfn / (mfd +1)
+ *  f = 2 * f_ref * --------------------
+ *                        pd + 1
+ */
+unsigned int imx_decode_pll(unsigned int pll, unsigned int f_ref)
+{
+	unsigned int mfi = (pll >> 10) & 0xf;
+	unsigned int mfn = pll & 0x3ff;
+	unsigned int mfd = (pll >> 16) & 0x3ff;
+	unsigned int pd =  (pll >> 26) & 0xf;
+
+	mfi = mfi <= 5 ? 5 : mfi;
+
+	return lldiv((2*(u64)f_ref* (mfi*(mfd+1) + mfn)), ((mfd+1)*(pd+1)));
+}
+
+static ulong clk_in_32k(void)
+{
+	return 1024 * CONFIG_MX31_CLK32;
+}
+
+static ulong clk_in_26m(void)
+{
+	if (CSCR & CSCR_OSC26M_DIV1P5) {
+		/* divide by 1.5 */
+		return 26000000 / 1.5;
+	} else {
+		/* divide by 1 */
+		return 26000000;
+	}
+}
+
+ulong imx_get_mpllclk(void)
+{
+	ulong cscr = CSCR;
+	ulong fref;
+
+	if (cscr & CSCR_MCU_SEL)
+		fref = clk_in_26m();
+	else
+		fref = clk_in_32k();
+
+	return imx_decode_pll(MPCTL0, fref);
+}
+
+ulong imx_get_armclk(void)
+{
+	ulong cscr = CSCR;
+	ulong fref = imx_get_mpllclk();
+	ulong div;
+
+	if (!(cscr & CSCR_ARM_SRC_MPLL))
+		fref = lldiv((fref * 2), 3);
+
+	div = ((cscr >> 12) & 0x3) + 1;
+
+	return lldiv(fref, div);
+}
+
+ulong imx_get_ahbclk(void)
+{
+	ulong cscr = CSCR;
+	ulong fref = imx_get_mpllclk();
+	ulong div;
+
+	div = ((cscr >> 8) & 0x3) + 1;
+
+	return lldiv(fref * 2, 3 * div);
+
+}
+
+ulong imx_get_spllclk(void)
+{
+	ulong cscr = CSCR;
+	ulong fref;
+
+	if (cscr & CSCR_SP_SEL)
+		fref = clk_in_26m();
+	else
+		fref = clk_in_32k();
+
+	return imx_decode_pll(SPCTL0, fref);
+}
+
+static ulong imx_decode_perclk(ulong div)
+{
+        return lldiv((imx_get_mpllclk() * 2), (div * 3));
+}
+
+ulong imx_get_perclk1(void)
+{
+	return imx_decode_perclk((PCDR1 & 0x3f) + 1);
+}
+
+ulong imx_get_perclk2(void)
+{
+	return imx_decode_perclk(((PCDR1 >> 8) & 0x3f) + 1);
+}
+
+ulong imx_get_perclk3(void)
+{
+	return imx_decode_perclk(((PCDR1 >> 16) & 0x3f) + 1);
+}
+
+ulong imx_get_perclk4(void)
+{
+	return imx_decode_perclk(((PCDR1 >> 24) & 0x3f) + 1);
+}
+
+#if defined(CONFIG_DISPLAY_CPUINFO)
+int print_cpuinfo (void)
+{
+       printf("CPU:   Freescale i.MX27 at %llu MHz\n",
+               lldiv(imx_get_mpllclk(), 1000000));
+       printf("\n");
+       return 0;
+}
+#endif
+
+void imx_gpio_mode(int gpio_mode)
+{
+	unsigned int pin = gpio_mode & GPIO_PIN_MASK;
+	unsigned int port = (gpio_mode & GPIO_PORT_MASK) >> GPIO_PORT_SHIFT;
+	unsigned int ocr = (gpio_mode & GPIO_OCR_MASK) >> GPIO_OCR_SHIFT;
+	unsigned int aout = (gpio_mode & GPIO_AOUT_MASK) >> GPIO_AOUT_SHIFT;
+	unsigned int bout = (gpio_mode & GPIO_BOUT_MASK) >> GPIO_BOUT_SHIFT;
+	unsigned int tmp;
+
+	/* Pullup enable */
+	if(gpio_mode & GPIO_PUEN)
+		PUEN(port) |= (1 << pin);
+	else
+		PUEN(port) &= ~(1 << pin);
+
+	/* Data direction */
+	if(gpio_mode & GPIO_OUT)
+		DDIR(port) |= 1 << pin;
+	else
+		DDIR(port) &= ~(1 << pin);
+
+	/* Primary / alternate function */
+	if(gpio_mode & GPIO_AF)
+		GPR(port) |= (1 << pin);
+	else
+		GPR(port) &= ~(1 << pin);
+
+	/* use as gpio? */
+	if(!(gpio_mode & (GPIO_PF | GPIO_AF)))
+		GIUS(port) |= (1 << pin);
+	else
+		GIUS(port) &= ~(1 << pin);
+
+	/* Output / input configuration */
+	if (pin < 16) {
+		tmp = OCR1(port);
+		tmp &= ~(3 << (pin * 2));
+		tmp |= (ocr << (pin * 2));
+		OCR1(port) = tmp;
+
+		ICONFA1(port) &= ~(3 << (pin * 2));
+		ICONFA1(port) |= aout << (pin * 2);
+		ICONFB1(port) &= ~(3 << (pin * 2));
+		ICONFB1(port) |= bout << (pin * 2);
+	} else {
+		pin -= 16;
+
+		tmp = OCR2(port);
+		tmp &= ~(3 << (pin * 2));
+		tmp |= (ocr << (pin * 2));
+		OCR2(port) = tmp;
+
+		ICONFA2(port) &= ~(3 << (pin * 2));
+		ICONFA2(port) |= aout << (pin * 2);
+		ICONFB2(port) &= ~(3 << (pin * 2));
+		ICONFB2(port) |= bout << (pin * 2);
+	}
+
+}
+
diff --git a/cpu/arm926ejs/mx27/interrupt.c b/cpu/arm926ejs/mx27/interrupt.c
new file mode 100644
index 0000000..6138d91
--- /dev/null
+++ b/cpu/arm926ejs/mx27/interrupt.c
@@ -0,0 +1,201 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger at sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu at sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj at denx.de>
+ *
+ * (C) Copyright 2009
+ * Ilya Yanok, Emcraft Systems Ltd, <yanok at emcraft.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <div64.h>
+#include <asm/arch/imx-regs.h>
+
+/* General purpose timers registers */
+#define GPTCR	__REG(IMX_TIM1_BASE)		/* Control register	*/
+#define GPTPR	__REG(IMX_TIM1_BASE + 0x4)	/* Prescaler register	*/
+#define GPTCNT	__REG(IMX_TIM1_BASE + 0x10)	/* Counter register	*/
+#define GPTSR	__REG(IMX_TIM1_BASE + 0x14)	/* Status register	*/
+
+/* General purpose timers bitfields */
+#define GPTCR_SWR		(1 << 15)	/* Software reset	*/
+#define GPTCR_FRR		(1 << 8)	/* Freerun / restart	*/
+#define GPTCR_CLKSOURCE_32	(4 << 1)	/* Clock source		*/
+#define GPTCR_TEN		1		/* Timer enable		*/
+
+static ulong timestamp;
+static ulong lastinc;
+
+/* "time" is measured in 1 / CONFIG_SYS_HZ seconds, "tick" is internal timer period */
+#ifdef CONFIG_MX27_TIMER_HIGH_PRECISION
+/* ~0.4% error - measured with stop-watch on 100s boot-delay */
+static inline unsigned long long tick_to_time(unsigned long long tick)
+{
+	tick *= CONFIG_SYS_HZ;
+	do_div(tick, CONFIG_MX31_CLK32);
+	return tick;
+}
+
+static inline unsigned long long time_to_tick(unsigned long long time)
+{
+	time *= CONFIG_MX31_CLK32;
+	do_div(time, CONFIG_SYS_HZ);
+	return time;
+}
+
+static inline unsigned long long us_to_tick(unsigned long long us)
+{
+	us = us * CONFIG_MX31_CLK32 + 999999;
+	do_div(us, 1000000);
+	return us;
+}
+#else
+/* ~2% error */
+#define TICK_PER_TIME	((CONFIG_MX31_CLK32 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ)
+#define US_PER_TICK	(1000000 / CONFIG_MX31_CLK32)
+
+static inline unsigned long long tick_to_time(unsigned long long tick)
+{
+	do_div(tick, TICK_PER_TIME);
+	return tick;
+}
+
+static inline unsigned long long time_to_tick(unsigned long long time)
+{
+	return time * TICK_PER_TIME;
+}
+
+static inline unsigned long long us_to_tick(unsigned long long us)
+{
+	us += US_PER_TICK - 1;
+	do_div(us, US_PER_TICK);
+	return us;
+}
+#endif
+
+/* nothing really to do with interrupts, just starts up a counter. */
+/* The 32768Hz 32-bit timer overruns in 131072 seconds */
+int timer_init (void)
+{
+	int i;
+
+	/* setup GP Timer 1 */
+	GPTCR = GPTCR_SWR;
+
+#ifdef CONFIG_IMX27
+	PCCR0 |= PCCR0_GPT1_EN;
+	PCCR1 |= PCCR1_PERCLK1_EN;
+#endif
+
+	for (i = 0; i < 100; i++)
+		GPTCR = 0; /* We have no udelay by now */
+	GPTPR = 0; /* 32Khz */
+	/* Freerun Mode, PERCLK1 input */
+	GPTCR |= GPTCR_CLKSOURCE_32 | GPTCR_FRR;
+	GPTCR |= GPTCR_TEN;
+
+	return 0;
+}
+
+void reset_timer_masked (void)
+{
+	/* reset time */
+	lastinc = GPTCNT; /* capture current incrementer value time */
+	timestamp = 0; /* start "advancing" time stamp from 0 */
+}
+
+void reset_timer(void)
+{
+	reset_timer_masked();
+}
+
+unsigned long long get_ticks (void)
+{
+	ulong now = GPTCNT; /* current tick value */
+
+	if (now >= lastinc)	/* normal mode (non roll) */
+		/* move stamp forward with absolut diff ticks */
+		timestamp += (now - lastinc);
+	else			/* we have rollover of incrementer */
+		timestamp += (0xFFFFFFFF - lastinc) + now;
+	lastinc = now;
+	return timestamp;
+}
+
+ulong get_timer_masked (void)
+{
+	/*
+	 * get_ticks() returns a long long (64 bit), it wraps in
+	 * 2^64 / CONFIG_MX31_CLK32 = 2^64 / 2^15 = 2^49 ~ 5 * 10^14 (s) ~
+	 * 5 * 10^9 days... and get_ticks() * CONFIG_SYS_HZ wraps in
+	 * 5 * 10^6 days - long enough.
+	 */
+	return tick_to_time(get_ticks());
+}
+
+ulong get_timer (ulong base)
+{
+	return get_timer_masked () - base;
+}
+
+void set_timer (ulong t)
+{
+	timestamp = time_to_tick(t);
+}
+
+/* delay x useconds AND perserve advance timstamp value */
+void udelay (unsigned long usec)
+{
+	unsigned long long tmp;
+	ulong tmo;
+
+	tmo = us_to_tick(usec);
+	tmp = get_ticks() + tmo;	/* get current timestamp */
+
+	while (get_ticks() < tmp)	/* loop till event */
+		 /*NOP*/;
+}
+
+/*
+ * Reset the cpu by setting up the watchdog timer and let it time out
+ */
+void reset_cpu (ulong ignored)
+{
+	/* Disable watchdog and set Time-Out field to 0 */
+	WCR = 0x00000000;
+
+	/* Write Service Sequence */
+	WSR = 0x00005555;
+	WSR = 0x0000AAAA;
+
+	/* Enable watchdog */
+	WCR = WCR_WDE;
+
+	while (1);
+	/*NOTREACHED*/
+}
diff --git a/include/asm-arm/arch-mx27/clock.h b/include/asm-arm/arch-mx27/clock.h
new file mode 100644
index 0000000..f6615d9
--- /dev/null
+++ b/include/asm-arm/arch-mx27/clock.h
@@ -0,0 +1,17 @@
+
+#ifndef __ASM_ARCH_CLOCK_H
+#define __ASM_ARCH_CLOCK_H
+unsigned int imx_decode_pll(unsigned int pll, unsigned int f_ref);
+
+ulong imx_get_mpllclk(void);
+ulong imx_get_armclk(void);
+ulong imx_get_spllclk(void);
+ulong imx_get_fclk(void);
+ulong imx_get_hclk(void);
+ulong imx_get_bclk(void);
+ulong imx_get_perclk1(void);
+ulong imx_get_perclk2(void);
+ulong imx_get_perclk3(void);
+ulong imx_get_ahbclk(void);
+
+#endif /* __ASM_ARCH_CLOCK_H */
diff --git a/include/asm-arm/arch-mx27/imx-regs.h b/include/asm-arm/arch-mx27/imx-regs.h
new file mode 100644
index 0000000..a856f7e
--- /dev/null
+++ b/include/asm-arm/arch-mx27/imx-regs.h
@@ -0,0 +1,504 @@
+/*
+ *
+ * (c) 2007 Pengutronix, Sascha Hauer <s.hauer at pengutronix.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _IMX_REGS_H
+#define _IMX_REGS_H
+
+/* ------------------------------------------------------------------------
+ *  Motorola IMX system registers
+ * ------------------------------------------------------------------------
+ */
+
+# ifndef __ASSEMBLY__
+# define __REG(x)	(*((volatile u32 *)(x)))
+# define __REG16(x)     (*(volatile u16 *)(x))
+# define __REG2(x,y)    (*(volatile u32 *)((u32)&__REG(x) + (y)))
+
+extern void imx_gpio_mode (int gpio_mode);
+
+# else
+#  define __REG(x) (x)
+#  define __REG16(x) (x)
+#  define __REG2(x,y) ((x)+(y))
+#endif
+
+#define IMX_IO_BASE		0x10000000
+
+#define IMX_AIPI1_BASE             (0x00000 + IMX_IO_BASE)
+#define IMX_WDT_BASE               (0x02000 + IMX_IO_BASE)
+#define IMX_TIM1_BASE              (0x03000 + IMX_IO_BASE)
+#define IMX_TIM2_BASE              (0x04000 + IMX_IO_BASE)
+#define IMX_TIM3_BASE              (0x05000 + IMX_IO_BASE)
+#define IMX_UART1_BASE             (0x0a000 + IMX_IO_BASE)
+#define IMX_UART2_BASE             (0x0b000 + IMX_IO_BASE)
+#define IMX_UART3_BASE             (0x0c000 + IMX_IO_BASE)
+#define IMX_UART4_BASE             (0x0d000 + IMX_IO_BASE)
+#define IMX_I2C1_BASE              (0x12000 + IMX_IO_BASE)
+#define IMX_GPIO_BASE              (0x15000 + IMX_IO_BASE)
+#define IMX_TIM4_BASE              (0x19000 + IMX_IO_BASE)
+#define IMX_TIM5_BASE              (0x1a000 + IMX_IO_BASE)
+#define IMX_UART5_BASE             (0x1b000 + IMX_IO_BASE)
+#define IMX_UART6_BASE             (0x1c000 + IMX_IO_BASE)
+#define IMX_I2C2_BASE              (0x1D000 + IMX_IO_BASE)
+#define IMX_TIM6_BASE              (0x1f000 + IMX_IO_BASE)
+#define IMX_AIPI2_BASE             (0x20000 + IMX_IO_BASE)
+#define IMX_PLL_BASE               (0x27000 + IMX_IO_BASE)
+#define IMX_SYSTEM_CTL_BASE        (0x27800 + IMX_IO_BASE)
+#define IMX_IIM_BASE               (0x28000 + IMX_IO_BASE)
+#define IMX_FEC_BASE               (0x2b000 + IMX_IO_BASE)
+
+#define IMX_ESD_BASE               (0xD8001000)
+#define IMX_WEIM_BASE              (0xD8002000)
+
+
+/* AIPI */
+#define AIPI1_PSR0	__REG(IMX_AIPI1_BASE + 0x00)
+#define AIPI1_PSR1	__REG(IMX_AIPI1_BASE + 0x04)
+#define AIPI2_PSR0	__REG(IMX_AIPI2_BASE + 0x00)
+#define AIPI2_PSR1	__REG(IMX_AIPI2_BASE + 0x04)
+
+/* System Control */
+#define FMCR	__REG(IMX_SYSTEM_CTL_BASE + 0x14)
+#define GPCR	__REG(IMX_SYSTEM_CTL_BASE + 0x18)
+#define WBCR	__REG(IMX_SYSTEM_CTL_BASE + 0x1C)
+#define DSCR1	__REG(IMX_SYSTEM_CTL_BASE + 0x20)
+#define DSCR2	__REG(IMX_SYSTEM_CTL_BASE + 0x24)
+#define DSCR3	__REG(IMX_SYSTEM_CTL_BASE + 0x28)
+#define DSCR4	__REG(IMX_SYSTEM_CTL_BASE + 0x2C)
+#define DSCR5	__REG(IMX_SYSTEM_CTL_BASE + 0x30)
+#define DSCR6	__REG(IMX_SYSTEM_CTL_BASE + 0x34)
+#define DSCR7	__REG(IMX_SYSTEM_CTL_BASE + 0x38)
+#define DSCR8	__REG(IMX_SYSTEM_CTL_BASE + 0x3C)
+#define DSCR9	__REG(IMX_SYSTEM_CTL_BASE + 0x40)
+#define DSCR10	__REG(IMX_SYSTEM_CTL_BASE + 0x44)
+#define DSCR11	__REG(IMX_SYSTEM_CTL_BASE + 0x48)
+#define DSCR12	__REG(IMX_SYSTEM_CTL_BASE + 0x4C)
+#define DSCR13	__REG(IMX_SYSTEM_CTL_BASE + 0x50)
+#define PSCR	__REG(IMX_SYSTEM_CTL_BASE + 0x54)
+#define PMCR	__REG(IMX_SYSTEM_CTL_BASE + 0x58)
+#define DCVR0	__REG(IMX_SYSTEM_CTL_BASE + 0x60)
+#define DCVR1	__REG(IMX_SYSTEM_CTL_BASE + 0x64)
+#define DCVR2	__REG(IMX_SYSTEM_CTL_BASE + 0x68)
+#define DCVR3	__REG(IMX_SYSTEM_CTL_BASE + 0x6C)
+
+/* FMCR System Control bit definition*/
+#define UART4_RXD_CTL	(1<<25)
+#define UART4_RTS_CTL	(1<<24)
+#define KP_COL6_CTL	(1<<18)
+#define KP_ROW7_CTL	(1<<17)
+#define KP_ROW6_CTL	(1<<16)
+#define PC_WAIT_B_CTL	(1<<14)
+#define PC_READY_CTL	(1<<13)
+#define PC_VS1_CTL	(1<<12)
+#define PC_VS2_CTL	(1<<11)
+#define PC_BVD1_CTL	(1<<10)
+#define PC_BVD2_CTL	(1<<9)
+#define IOS16_CTL	(1<<8)
+#define NF_FMS		(1<<5)
+#define NF_16BIT_SEL	(1<<4)
+#define SLCDC_SEL	(1<<2)
+#define SDCS1_SEL	(1<<1)
+#define SDCS0_SEL	(1<<0)
+
+
+/* Chip Select Registers */
+#define CS0U __REG(IMX_WEIM_BASE + 0x00) /* Chip Select 0 Upper Register    */
+#define CS0L __REG(IMX_WEIM_BASE + 0x04) /* Chip Select 0 Lower Register    */
+#define CS0A __REG(IMX_WEIM_BASE + 0x08) /* Chip Select 0 Addition Register */
+#define CS1U __REG(IMX_WEIM_BASE + 0x10) /* Chip Select 1 Upper Register    */
+#define CS1L __REG(IMX_WEIM_BASE + 0x14) /* Chip Select 1 Lower Register    */
+#define CS1A __REG(IMX_WEIM_BASE + 0x18) /* Chip Select 1 Addition Register */
+#define CS2U __REG(IMX_WEIM_BASE + 0x20) /* Chip Select 2 Upper Register    */
+#define CS2L __REG(IMX_WEIM_BASE + 0x24) /* Chip Select 2 Lower Register    */
+#define CS2A __REG(IMX_WEIM_BASE + 0x28) /* Chip Select 2 Addition Register */
+#define CS3U __REG(IMX_WEIM_BASE + 0x30) /* Chip Select 3 Upper Register    */
+#define CS3L __REG(IMX_WEIM_BASE + 0x34) /* Chip Select 3 Lower Register    */
+#define CS3A __REG(IMX_WEIM_BASE + 0x38) /* Chip Select 3 Addition Register */
+#define CS4U __REG(IMX_WEIM_BASE + 0x40) /* Chip Select 4 Upper Register    */
+#define CS4L __REG(IMX_WEIM_BASE + 0x44) /* Chip Select 4 Lower Register    */
+#define CS4A __REG(IMX_WEIM_BASE + 0x48) /* Chip Select 4 Addition Register */
+#define CS5U __REG(IMX_WEIM_BASE + 0x50) /* Chip Select 5 Upper Register    */
+#define CS5L __REG(IMX_WEIM_BASE + 0x54) /* Chip Select 5 Lower Register    */
+#define CS5A __REG(IMX_WEIM_BASE + 0x58) /* Chip Select 5 Addition Register */
+#define EIM  __REG(IMX_WEIM_BASE + 0x60) /* WEIM Configuration Register     */
+
+/* SDRAM Controller registers */
+#define ESDCTL0_ROF	0x00
+#define ESDCFG0_ROF	0x04
+#define ESDCTL1_ROF	0x08
+#define ESDCFG1_ROF	0x0C
+#define ESDMISC_ROF	0x10
+/* Enhanced SDRAM Control Register 0 */
+#define ESDCTL0 __REG(IMX_ESD_BASE + ESDCTL0_ROF)
+/* Enhanced SDRAM Configuration Register 0 */
+#define ESDCFG0 __REG(IMX_ESD_BASE + ESDCFG0_ROF)
+/* Enhanced SDRAM Control Register 1 */
+#define ESDCTL1 __REG(IMX_ESD_BASE + ESDCTL1_ROF)
+/* Enhanced SDRAM Configuration Register 1 */
+#define ESDCFG1 __REG(IMX_ESD_BASE + ESDCFG1_ROF)
+/* Enhanced SDRAM Miscellanious Register */
+#define ESDMISC __REG(IMX_ESD_BASE + ESDMISC_ROF)
+
+/* Watchdog Registers*/
+#define WCR  __REG16(IMX_WDT_BASE + 0x00) /* Watchdog Control Register */
+#define WSR  __REG16(IMX_WDT_BASE + 0x04) /* Watchdog Service Register */
+#define WSTR __REG16(IMX_WDT_BASE + 0x08) /* Watchdog Status Register  */
+
+/* important definition of some bits of WCR */
+#define WCR_WDE 0x04
+
+/* PLL registers */
+#define CSCR		__REG(IMX_PLL_BASE + 0x00) /* Clock Source Control Register       */
+#define MPCTL0		__REG(IMX_PLL_BASE + 0x04) /* MCU PLL Control Register 0          */
+#define MPCTL1		__REG(IMX_PLL_BASE + 0x08) /* MCU PLL Control Register 1          */
+#define SPCTL0		__REG(IMX_PLL_BASE + 0x0c) /* System PLL Control Register 0       */
+#define SPCTL1		__REG(IMX_PLL_BASE + 0x10) /* System PLL Control Register 1       */
+#define OSC26MCTL	__REG(IMX_PLL_BASE + 0x14) /* Oscillator 26M Register             */
+#define PCDR0		__REG(IMX_PLL_BASE + 0x18) /* Peripheral Clock Divider Register 0 */
+#define PCDR1		__REG(IMX_PLL_BASE + 0x1c) /* Peripheral Clock Divider Register 1 */
+#define PCCR0		__REG(IMX_PLL_BASE + 0x20) /* Peripheral Clock Control Register 0 */
+#define PCCR1		__REG(IMX_PLL_BASE + 0x24) /* Peripheral Clock Control Register 1 */
+#define CCSR		__REG(IMX_PLL_BASE + 0x28) /* Clock Control Status Register       */
+
+#define CSCR_MPEN		(1 << 0)
+#define CSCR_SPEN		(1 << 1)
+#define CSCR_FPM_EN		(1 << 2)
+#define CSCR_OSC26M_DIS		(1 << 3)
+#define CSCR_OSC26M_DIV1P5	(1 << 4)
+#define CSCR_AHB_DIV
+#define CSCR_ARM_DIV
+#define CSCR_ARM_SRC_MPLL	(1 << 15)
+#define CSCR_MCU_SEL		(1 << 16)
+#define CSCR_SP_SEL		(1 << 17)
+#define CSCR_MPLL_RESTART	(1 << 18)
+#define CSCR_SPLL_RESTART	(1 << 19)
+#define CSCR_MSHC_SEL		(1 << 20)
+#define CSCR_H264_SEL		(1 << 21)
+#define CSCR_SSI1_SEL		(1 << 22)
+#define CSCR_SSI2_SEL		(1 << 23)
+#define CSCR_SD_CNT
+#define CSCR_USB_DIV
+#define CSCR_UPDATE_DIS		(1 << 31)
+
+#define MPCTL1_BRMO		(1 << 6)
+#define MPCTL1_LF		(1 << 15)
+
+#define PCCR0_SSI2_EN	(1 << 0)
+#define PCCR0_SSI1_EN	(1 << 1)
+#define PCCR0_SLCDC_EN	(1 << 2)
+#define PCCR0_SDHC3_EN	(1 << 3)
+#define PCCR0_SDHC2_EN	(1 << 4)
+#define PCCR0_SDHC1_EN	(1 << 5)
+#define PCCR0_SDC_EN	(1 << 6)
+#define PCCR0_SAHARA_EN	(1 << 7)
+#define PCCR0_RTIC_EN	(1 << 8)
+#define PCCR0_RTC_EN	(1 << 9)
+#define PCCR0_PWM_EN	(1 << 11)
+#define PCCR0_OWIRE_EN	(1 << 12)
+#define PCCR0_MSHC_EN	(1 << 13)
+#define PCCR0_LCDC_EN	(1 << 14)
+#define PCCR0_KPP_EN	(1 << 15)
+#define PCCR0_IIM_EN	(1 << 16)
+#define PCCR0_I2C2_EN	(1 << 17)
+#define PCCR0_I2C1_EN	(1 << 18)
+#define PCCR0_GPT6_EN	(1 << 19)
+#define PCCR0_GPT5_EN	(1 << 20)
+#define PCCR0_GPT4_EN	(1 << 21)
+#define PCCR0_GPT3_EN	(1 << 22)
+#define PCCR0_GPT2_EN	(1 << 23)
+#define PCCR0_GPT1_EN	(1 << 24)
+#define PCCR0_GPIO_EN	(1 << 25)
+#define PCCR0_FEC_EN	(1 << 26)
+#define PCCR0_EMMA_EN	(1 << 27)
+#define PCCR0_DMA_EN	(1 << 28)
+#define PCCR0_CSPI3_EN	(1 << 29)
+#define PCCR0_CSPI2_EN	(1 << 30)
+#define PCCR0_CSPI1_EN	(1 << 31)
+
+#define PCCR1_MSHC_BAUDEN	(1 << 2)
+#define PCCR1_NFC_BAUDEN	(1 << 3)
+#define PCCR1_SSI2_BAUDEN	(1 << 4)
+#define PCCR1_SSI1_BAUDEN	(1 << 5)
+#define PCCR1_H264_BAUDEN	(1 << 6)
+#define PCCR1_PERCLK4_EN	(1 << 7)
+#define PCCR1_PERCLK3_EN	(1 << 8)
+#define PCCR1_PERCLK2_EN	(1 << 9)
+#define PCCR1_PERCLK1_EN	(1 << 10)
+#define PCCR1_HCLK_USB		(1 << 11)
+#define PCCR1_HCLK_SLCDC	(1 << 12)
+#define PCCR1_HCLK_SAHARA	(1 << 13)
+#define PCCR1_HCLK_RTIC		(1 << 14)
+#define PCCR1_HCLK_LCDC		(1 << 15)
+#define PCCR1_HCLK_H264		(1 << 16)
+#define PCCR1_HCLK_FEC		(1 << 17)
+#define PCCR1_HCLK_EMMA		(1 << 18)
+#define PCCR1_HCLK_EMI		(1 << 19)
+#define PCCR1_HCLK_DMA		(1 << 20)
+#define PCCR1_HCLK_CSI		(1 << 21)
+#define PCCR1_HCLK_BROM		(1 << 22)
+#define PCCR1_HCLK_ATA		(1 << 23)
+#define PCCR1_WDT_EN		(1 << 24)
+#define PCCR1_USB_EN		(1 << 25)
+#define PCCR1_UART6_EN		(1 << 26)
+#define PCCR1_UART5_EN		(1 << 27)
+#define PCCR1_UART4_EN		(1 << 28)
+#define PCCR1_UART3_EN		(1 << 29)
+#define PCCR1_UART2_EN		(1 << 30)
+#define PCCR1_UART1_EN		(1 << 31)
+
+/* SDRAM Controller registers bitfields */
+#define ESDCTL_PRCT(x)		(((x) & 0x3f) << 0)
+#define ESDCTL_BL		(1 << 7)
+#define ESDCTL_FP		(1 << 8)
+#define ESDCTL_PWDT(x)		(((x) & 3) << 10)
+#define ESDCTL_SREFR(x)		(((x) & 7) << 13)
+#define ESDCTL_DSIZ_16_UPPER	(0 << 16)
+#define ESDCTL_DSIZ_16_LOWER	(1 << 16)
+#define ESDCTL_DSIZ_32		(2 << 16)
+#define ESDCTL_COL8		(0 << 20)
+#define ESDCTL_COL9		(1 << 20)
+#define ESDCTL_COL10		(2 << 20)
+#define ESDCTL_ROW11		(0 << 24)
+#define ESDCTL_ROW12		(1 << 24)
+#define ESDCTL_ROW13		(2 << 24)
+#define ESDCTL_ROW14		(3 << 24)
+#define ESDCTL_ROW15		(4 << 24)
+#define ESDCTL_SP		(1 << 27)
+#define ESDCTL_SMODE_NORMAL	(0 << 28)
+#define ESDCTL_SMODE_PRECHARGE	(1 << 28)
+#define ESDCTL_SMODE_AUTO_REF	(2 << 28)
+#define ESDCTL_SMODE_LOAD_MODE	(3 << 28)
+#define ESDCTL_SMODE_MAN_REF	(4 << 28)
+#define ESDCTL_SDE		(1 << 31)
+
+#define ESDCFG_TRC(x)		(((x) & 0xf) << 0)
+#define ESDCFG_TRCD(x)		(((x) & 0x7) << 4)
+#define ESDCFG_TCAS(x)		(((x) & 0x3) << 8)
+#define ESDCFG_TRRD(x)		(((x) & 0x3) << 10)
+#define ESDCFG_TRAS(x)		(((x) & 0x7) << 12)
+#define ESDCFG_TWR		(1 << 15)
+#define ESDCFG_TMRD(x)		(((x) & 0x3) << 16)
+#define ESDCFG_TRP(x)		(((x) & 0x3) << 18)
+#define ESDCFG_TWTR		(1 << 20)
+#define ESDCFG_TXP(x)		(((x) & 0x3) << 21)
+
+#define ESDMISC_RST		(1 << 1)
+#define ESDMISC_MDDREN		(1 << 2)
+#define ESDMISC_MDDR_DL_RST	(1 << 3)
+#define ESDMISC_MDDR_MDIS	(1 << 4)
+#define ESDMISC_LHD		(1 << 5)
+#define ESDMISC_MA10_SHARE	(1 << 6)
+#define ESDMISC_SDRAM_RDY	(1 << 31)
+
+#define PC5_PF_I2C2_DATA	(GPIO_PORTC | GPIO_OUT | GPIO_PF | 5)
+#define PC6_PF_I2C2_CLK		(GPIO_PORTC | GPIO_OUT | GPIO_PF | 6)
+#define PC7_PF_USBOTG_DATA5	(GPIO_PORTC | GPIO_OUT | GPIO_PF | 7)
+#define PC8_PF_USBOTG_DATA6	(GPIO_PORTC | GPIO_OUT | GPIO_PF | 8)
+#define PC9_PF_USBOTG_DATA0	(GPIO_PORTC | GPIO_OUT | GPIO_PF | 9)
+#define PC10_PF_USBOTG_DATA2	(GPIO_PORTC | GPIO_OUT | GPIO_PF | 10)
+#define PC11_PF_USBOTG_DATA1	(GPIO_PORTC | GPIO_OUT | GPIO_PF | 11)
+#define PC12_PF_USBOTG_DATA4	(GPIO_PORTC | GPIO_OUT | GPIO_PF | 12)
+#define PC13_PF_USBOTG_DATA3	(GPIO_PORTC | GPIO_OUT | GPIO_PF | 13)
+
+#define PD0_AIN_FEC_TXD0	(GPIO_PORTD | GPIO_OUT | GPIO_AIN | 0)
+#define PD1_AIN_FEC_TXD1	(GPIO_PORTD | GPIO_OUT | GPIO_AIN | 1)
+#define PD2_AIN_FEC_TXD2	(GPIO_PORTD | GPIO_OUT | GPIO_AIN | 2)
+#define PD3_AIN_FEC_TXD3	(GPIO_PORTD | GPIO_OUT | GPIO_AIN | 3)
+#define PD4_AOUT_FEC_RX_ER	(GPIO_PORTD | GPIO_IN | GPIO_AOUT | 4)
+#define PD5_AOUT_FEC_RXD1	(GPIO_PORTD | GPIO_IN | GPIO_AOUT | 5)
+#define PD6_AOUT_FEC_RXD2	(GPIO_PORTD | GPIO_IN | GPIO_AOUT | 6)
+#define PD7_AOUT_FEC_RXD3	(GPIO_PORTD | GPIO_IN | GPIO_AOUT | 7)
+#define PD8_AF_FEC_MDIO		(GPIO_PORTD | GPIO_IN | GPIO_AF | 8)
+#define PD9_AIN_FEC_MDC		(GPIO_PORTD | GPIO_OUT | GPIO_AIN | 9)
+#define PD10_AOUT_FEC_CRS	(GPIO_PORTD | GPIO_IN | GPIO_AOUT | 10)
+#define PD11_AOUT_FEC_TX_CLK	(GPIO_PORTD | GPIO_IN | GPIO_AOUT | 11)
+#define PD12_AOUT_FEC_RXD0	(GPIO_PORTD | GPIO_IN | GPIO_AOUT | 12)
+#define PD13_AOUT_FEC_RX_DV	(GPIO_PORTD | GPIO_IN | GPIO_AOUT | 13)
+#define PD14_AOUT_FEC_CLR	(GPIO_PORTD | GPIO_IN | GPIO_AOUT | 14)
+#define PD15_AOUT_FEC_COL	(GPIO_PORTD | GPIO_IN | GPIO_AOUT | 15)
+#define PD16_AIN_FEC_TX_ER	(GPIO_PORTD | GPIO_OUT | GPIO_AIN | 16)
+#define PF23_AIN_FEC_TX_EN	(GPIO_PORTF | GPIO_OUT | GPIO_AIN | 23)
+
+#define PE0_PF_USBOTG_NXT	(GPIO_PORTE | GPIO_OUT | GPIO_PF | 0)
+#define PE1_PF_USBOTG_STP	(GPIO_PORTE | GPIO_OUT | GPIO_PF | 1)
+#define PE2_PF_USBOTG_DIR	(GPIO_PORTE | GPIO_OUT | GPIO_PF | 2)
+#define PE3_PF_UART2_CTS	(GPIO_PORTE | GPIO_OUT | GPIO_PF | 3)
+#define PE4_PF_UART2_RTS	(GPIO_PORTE | GPIO_IN  | GPIO_PF | 4)
+#define PE6_PF_UART2_TXD	(GPIO_PORTE | GPIO_OUT | GPIO_PF | 6)
+#define PE7_PF_UART2_RXD	(GPIO_PORTE | GPIO_IN  | GPIO_PF | 7)
+#define PE8_PF_UART3_TXD	(GPIO_PORTE | GPIO_OUT | GPIO_PF | 8)
+#define PE9_PF_UART3_RXD	(GPIO_PORTE | GPIO_IN  | GPIO_PF | 9)
+#define PE10_PF_UART3_CTS	(GPIO_PORTE | GPIO_OUT | GPIO_PF | 10)
+#define PE11_PF_UART3_RTS	(GPIO_PORTE | GPIO_IN  | GPIO_PF | 11)
+#define PE12_PF_UART1_TXD	(GPIO_PORTE | GPIO_OUT | GPIO_PF | 12)
+#define PE13_PF_UART1_RXD	(GPIO_PORTE | GPIO_IN  | GPIO_PF | 13)
+#define PE14_PF_UART1_CTS	(GPIO_PORTE | GPIO_OUT | GPIO_PF | 14)
+#define PE15_PF_UART1_RTS	(GPIO_PORTE | GPIO_IN  | GPIO_PF | 15)
+#define PE18_PF_SD1_D0          (GPIO_PORTE | GPIO_PF | 18)
+#define PE19_PF_SD1_D1          (GPIO_PORTE | GPIO_PF | 19)
+#define PE20_PF_SD1_D2          (GPIO_PORTE | GPIO_PF | 20)
+#define PE21_PF_SD1_D3          (GPIO_PORTE | GPIO_PF | 21)
+#define PE22_PF_SD1_CMD         (GPIO_PORTE | GPIO_PF | 22)
+#define PE23_PF_SD1_CLK         (GPIO_PORTE | GPIO_PF | 23)
+#define PB4_PF_SD2_D0           (GPIO_PORTB | GPIO_PF | 4)
+#define PB5_PF_SD2_D1           (GPIO_PORTB | GPIO_PF | 5)
+#define PB6_PF_SD2_D2           (GPIO_PORTB | GPIO_PF | 6)
+#define PB7_PF_SD2_D3           (GPIO_PORTB | GPIO_PF | 7)
+#define PB8_PF_SD2_CMD          (GPIO_PORTB | GPIO_PF | 8)
+#define PB9_PF_SD2_CLK          (GPIO_PORTB | GPIO_PF | 9)
+#define PD17_PF_I2C_DATA	(GPIO_PORTD | GPIO_OUT | GPIO_PF | 17)
+#define PD18_PF_I2C_CLK		(GPIO_PORTD | GPIO_OUT | GPIO_PF | 18)
+#define PE24_PF_USBOTG_CLK	(GPIO_PORTE | GPIO_OUT | GPIO_PF | 24)
+#define PE25_PF_USBOTG_DATA7	(GPIO_PORTE | GPIO_OUT | GPIO_PF | 25)
+
+/*
+ * Definitions for the clocksource driver
+ */
+/* Part 1: Registers */
+# define GPT_TCTL   0x00
+# define GPT_TPRER  0x04
+# define GPT_TCMP   0x08
+# define GPT_TCR    0x0c
+# define GPT_TCN    0x10
+# define GPT_TSTAT  0x14
+
+/* Part 2: Bitfields */
+#define TCTL_SWR       (1<<15) /* Software reset */
+#define TCTL_FRR       (1<<8)  /* Freerun / restart */
+#define TCTL_CAP       (3<<6)  /* Capture Edge */
+#define TCTL_OM        (1<<5)  /* output mode */
+#define TCTL_IRQEN     (1<<4)  /* interrupt enable */
+#define TCTL_CLKSOURCE (1)     /* Clock source bit position */
+#define TCTL_TEN       (1)     /* Timer enable */
+#define TPRER_PRES     (0xff)  /* Prescale */
+#define TSTAT_CAPT     (1<<1)  /* Capture event */
+#define TSTAT_COMP     (1)     /* Compare event */
+
+/*
+ *  GPIO Module and I/O Multiplexer
+ *  x = 0..3 for reg_A, reg_B, reg_C, reg_D
+ *
+ *  i.MX1 and i.MXL: 0 <= x <= 3
+ *  i.MX27         : 0 <= x <= 5
+ */
+#define PORTA 0
+#define PORTB 1
+#define PORTC 2
+#define PORTD 3
+#define PORTE 4
+#define PORTF 5
+
+#define DDIR(x)    __REG2(IMX_GPIO_BASE + 0x00, ((x) & 7) << 8)
+#define OCR1(x)    __REG2(IMX_GPIO_BASE + 0x04, ((x) & 7) << 8)
+#define OCR2(x)    __REG2(IMX_GPIO_BASE + 0x08, ((x) & 7) << 8)
+#define ICONFA1(x) __REG2(IMX_GPIO_BASE + 0x0c, ((x) & 7) << 8)
+#define ICONFA2(x) __REG2(IMX_GPIO_BASE + 0x10, ((x) & 7) << 8)
+#define ICONFB1(x) __REG2(IMX_GPIO_BASE + 0x14, ((x) & 7) << 8)
+#define ICONFB2(x) __REG2(IMX_GPIO_BASE + 0x18, ((x) & 7) << 8)
+#define DR(x)      __REG2(IMX_GPIO_BASE + 0x1c, ((x) & 7) << 8)
+#define GIUS(x)    __REG2(IMX_GPIO_BASE + 0x20, ((x) & 7) << 8)
+#define SSR(x)     __REG2(IMX_GPIO_BASE + 0x24, ((x) & 7) << 8)
+#define ICR1(x)    __REG2(IMX_GPIO_BASE + 0x28, ((x) & 7) << 8)
+#define ICR2(x)    __REG2(IMX_GPIO_BASE + 0x2c, ((x) & 7) << 8)
+#define IMR(x)     __REG2(IMX_GPIO_BASE + 0x30, ((x) & 7) << 8)
+#define ISR(x)     __REG2(IMX_GPIO_BASE + 0x34, ((x) & 7) << 8)
+#define GPR(x)     __REG2(IMX_GPIO_BASE + 0x38, ((x) & 7) << 8)
+#define SWR(x)     __REG2(IMX_GPIO_BASE + 0x3c, ((x) & 7) << 8)
+#define PUEN(x)    __REG2(IMX_GPIO_BASE + 0x40, ((x) & 7) << 8)
+
+#define GPIO_PIN_MASK 0x1f
+
+#define GPIO_PORT_SHIFT 5
+#define GPIO_PORT_MASK (0x7 << GPIO_PORT_SHIFT)
+
+#define GPIO_PORTA (PORTA << GPIO_PORT_SHIFT)
+#define GPIO_PORTB (PORTB << GPIO_PORT_SHIFT)
+#define GPIO_PORTC (PORTC << GPIO_PORT_SHIFT)
+#define GPIO_PORTD (PORTD << GPIO_PORT_SHIFT)
+#define GPIO_PORTE (PORTE << GPIO_PORT_SHIFT)
+#define GPIO_PORTF (PORTF << GPIO_PORT_SHIFT)
+
+#define GPIO_OUT   (1 << 8)
+#define GPIO_IN    (0 << 8)
+#define GPIO_PUEN  (1 << 9)
+
+#define GPIO_PF    (1 << 10)
+#define GPIO_AF    (1 << 11)
+
+#define GPIO_OCR_SHIFT 12
+#define GPIO_OCR_MASK (3 << GPIO_OCR_SHIFT)
+#define GPIO_AIN   (0 << GPIO_OCR_SHIFT)
+#define GPIO_BIN   (1 << GPIO_OCR_SHIFT)
+#define GPIO_CIN   (2 << GPIO_OCR_SHIFT)
+#define GPIO_GPIO  (3 << GPIO_OCR_SHIFT)
+
+#define GPIO_AOUT_SHIFT 14
+#define GPIO_AOUT_MASK (3 << GPIO_AOUT_SHIFT)
+#define GPIO_AOUT     (0 << GPIO_AOUT_SHIFT)
+#define GPIO_AOUT_ISR (1 << GPIO_AOUT_SHIFT)
+#define GPIO_AOUT_0   (2 << GPIO_AOUT_SHIFT)
+#define GPIO_AOUT_1   (3 << GPIO_AOUT_SHIFT)
+
+#define GPIO_BOUT_SHIFT 16
+#define GPIO_BOUT_MASK (3 << GPIO_BOUT_SHIFT)
+#define GPIO_BOUT      (0 << GPIO_BOUT_SHIFT)
+#define GPIO_BOUT_ISR  (1 << GPIO_BOUT_SHIFT)
+#define GPIO_BOUT_0    (2 << GPIO_BOUT_SHIFT)
+#define GPIO_BOUT_1    (3 << GPIO_BOUT_SHIFT)
+
+/* IIM Control Registers */
+#define IIM_STAT	__REG(IMX_IIM_BASE + 0x00)
+#define IIM_STAT_BUSY	(1 << 7)
+#define IIM_STAT_PRGD	(1 << 1)
+#define IIM_STAT_SNSD	(1 << 0)
+#define IIM_STATM	__REG(IMX_IIM_BASE + 0x04)
+#define IIM_ERR		__REG(IMX_IIM_BASE + 0x08)
+#define IIM_ERR_PRGE	(1 << 7)
+#define IIM_ERR_WPE	(1 << 6)
+#define IIM_ERR_OPE	(1 << 5)
+#define IIM_ERR_RPE	(1 << 4)
+#define IIM_ERR_WLRE	(1 << 3)
+#define IIM_ERR_SNSE	(1 << 2)
+#define IIM_ERR_PARITYE	(1 << 1)
+#define IIM_EMASK	__REG(IMX_IIM_BASE + 0x0C)
+#define IIM_FCTL	__REG(IMX_IIM_BASE + 0x10)
+#define IIM_UA		__REG(IMX_IIM_BASE + 0x14)
+#define IIM_LA		__REG(IMX_IIM_BASE + 0x18)
+#define IIM_SDAT	__REG(IMX_IIM_BASE + 0x1C)
+#define IIM_PREV	__REG(IMX_IIM_BASE + 0x20)
+#define IIM_SREV	__REG(IMX_IIM_BASE + 0x24)
+#define IIM_PROG_P	__REG(IMX_IIM_BASE + 0x28)
+#define IIM_SCS0	__REG(IMX_IIM_BASE + 0x2C)
+#define IIM_SCS1	__REG(IMX_IIM_BASE + 0x30)
+#define IIM_SCS2	__REG(IMX_IIM_BASE + 0x34)
+#define IIM_SCS3	__REG(IMX_IIM_BASE + 0x38)
+#define IIM_BANK_AREA	IMX_IIM_BASE + 0x800
+#define IIM_BANK_REG(x,y) __REG2(IIM_BANK_AREA + 0x400 * x, y<<2)
+/* Definitions for i.MX27 TO2 */
+#define IIM0_MAC		5
+#define IIM0_SCC_KEY		11
+#define IIM1_SUID		1
+
+
+#endif				/* _IMX_REGS_H */
+
-- 
1.6.0.6



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