This patch adds generic code to support Freescale's i.MX27 SoCs.
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
--- /dev/null
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@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 = generic.o reset.o timer.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
+
+#########################################################################
--- /dev/null
+/*
+ * Copyright (c) 2008 Eric Jarrige <eric.jarrige@armadeus.org>
+ * Copyright (c) 2009 Ilya Yanok <yanok@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/io.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_MX27_CLK32;
+}
+
+static ulong clk_in_26m(void)
+{
+ struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+
+ if (readl(&pll->cscr) & CSCR_OSC26M_DIV1P5) {
+ /* divide by 1.5 */
+ return 26000000 * 2 / 3;
+ } else {
+ return 26000000;
+ }
+}
+
+ulong imx_get_mpllclk(void)
+{
+ struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+ ulong cscr = readl(&pll->cscr);
+ ulong fref;
+
+ if (cscr & CSCR_MCU_SEL)
+ fref = clk_in_26m();
+ else
+ fref = clk_in_32k();
+
+ return imx_decode_pll(readl(&pll->mpctl0), fref);
+}
+
+ulong imx_get_armclk(void)
+{
+ struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+ ulong cscr = readl(&pll->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)
+{
+ struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+ ulong cscr = readl(&pll->cscr);
+ ulong fref = imx_get_mpllclk();
+ ulong div;
+
+ div = ((cscr >> 8) & 0x3) + 1;
+
+ return lldiv(fref * 2, 3 * div);
+}
+
+ulong imx_get_spllclk(void)
+{
+ struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+ ulong cscr = readl(&pll->cscr);
+ ulong fref;
+
+ if (cscr & CSCR_SP_SEL)
+ fref = clk_in_26m();
+ else
+ fref = clk_in_32k();
+
+ return imx_decode_pll(readl(&pll->spctl0), fref);
+}
+
+static ulong imx_decode_perclk(ulong div)
+{
+ return lldiv((imx_get_mpllclk() * 2), (div * 3));
+}
+
+ulong imx_get_perclk1(void)
+{
+ struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+
+ return imx_decode_perclk((readl(&pll->pcdr1) & 0x3f) + 1);
+}
+
+ulong imx_get_perclk2(void)
+{
+ struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+
+ return imx_decode_perclk(((readl(&pll->pcdr1) >> 8) & 0x3f) + 1);
+}
+
+ulong imx_get_perclk3(void)
+{
+ struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+
+ return imx_decode_perclk(((readl(&pll->pcdr1) >> 16) & 0x3f) + 1);
+}
+
+ulong imx_get_perclk4(void)
+{
+ struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+
+ return imx_decode_perclk(((readl(&pll->pcdr1) >> 24) & 0x3f) + 1);
+}
+
+#if defined(CONFIG_DISPLAY_CPUINFO)
+int print_cpuinfo (void)
+{
+ char buf[32];
+
+ printf("CPU: Freescale i.MX27 at %s MHz\n\n",
+ strmhz(buf, imx_get_mpllclk()));
+ return 0;
+}
+#endif
+
+void imx_gpio_mode(int gpio_mode)
+{
+ struct gpio_regs *regs = (struct gpio_regs *)IMX_GPIO_BASE;
+ 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) {
+ writel(readl(®s->port[port].puen) | (1 << pin),
+ ®s->port[port].puen);
+ } else {
+ writel(readl(®s->port[port].puen) & ~(1 << pin),
+ ®s->port[port].puen);
+ }
+
+ /* Data direction */
+ if (gpio_mode & GPIO_OUT) {
+ writel(readl(®s->port[port].ddir) | 1 << pin,
+ ®s->port[port].ddir);
+ } else {
+ writel(readl(®s->port[port].ddir) & ~(1 << pin),
+ ®s->port[port].ddir);
+ }
+
+ /* Primary / alternate function */
+ if (gpio_mode & GPIO_AF) {
+ writel(readl(®s->port[port].gpr) | (1 << pin),
+ ®s->port[port].gpr);
+ } else {
+ writel(readl(®s->port[port].gpr) & ~(1 << pin),
+ ®s->port[port].gpr);
+ }
+
+ /* use as gpio? */
+ if (!(gpio_mode & (GPIO_PF | GPIO_AF))) {
+ writel(readl(®s->port[port].gius) | (1 << pin),
+ ®s->port[port].gius);
+ } else {
+ writel(readl(®s->port[port].gius) & ~(1 << pin),
+ ®s->port[port].gius);
+ }
+
+ /* Output / input configuration */
+ if (pin < 16) {
+ tmp = readl(®s->port[port].ocr1);
+ tmp &= ~(3 << (pin * 2));
+ tmp |= (ocr << (pin * 2));
+ writel(tmp, ®s->port[port].ocr1);
+
+ writel(readl(®s->port[port].iconfa1) & ~(3 << (pin * 2)),
+ ®s->port[port].iconfa1);
+ writel(readl(®s->port[port].iconfa1) | aout << (pin * 2),
+ ®s->port[port].iconfa1);
+ writel(readl(®s->port[port].iconfb1) & ~(3 << (pin * 2)),
+ ®s->port[port].iconfb1);
+ writel(readl(®s->port[port].iconfb1) | bout << (pin * 2),
+ ®s->port[port].iconfb1);
+ } else {
+ pin -= 16;
+
+ tmp = readl(®s->port[port].ocr2);
+ tmp &= ~(3 << (pin * 2));
+ tmp |= (ocr << (pin * 2));
+ writel(tmp, ®s->port[port].ocr2);
+
+ writel(readl(®s->port[port].iconfa2) & ~(3 << (pin * 2)),
+ ®s->port[port].iconfa2);
+ writel(readl(®s->port[port].iconfa2) | aout << (pin * 2),
+ ®s->port[port].iconfa2);
+ writel(readl(®s->port[port].iconfb2) & ~(3 << (pin * 2)),
+ ®s->port[port].iconfb2);
+ writel(readl(®s->port[port].iconfb2) | bout << (pin * 2),
+ ®s->port[port].iconfb2);
+ }
+}
+
--- /dev/null
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * (C) Copyright 2009
+ * Ilya Yanok, Emcraft Systems Ltd, <yanok@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 <asm/io.h>
+#include <asm/arch/imx-regs.h>
+
+/*
+ * Reset the cpu by setting up the watchdog timer and let it time out
+ */
+void reset_cpu (ulong ignored)
+{
+ struct wdog_regs *regs = (struct wdog_regs *)IMX_WDT_BASE;
+ /* Disable watchdog and set Time-Out field to 0 */
+ writel(0x00000000, ®s->wcr);
+
+ /* Write Service Sequence */
+ writel(0x00005555, ®s->wsr);
+ writel(0x0000AAAA, ®s->wsr);
+
+ /* Enable watchdog */
+ writel(WCR_WDE, ®s->wcr);
+
+ while (1);
+ /*NOTREACHED*/
+}
--- /dev/null
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * (C) Copyright 2009
+ * Ilya Yanok, Emcraft Systems Ltd, <yanok@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/io.h>
+#include <asm/arch/imx-regs.h>
+
+/* 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_MX27_CLK32);
+ return tick;
+}
+
+static inline unsigned long long time_to_tick(unsigned long long time)
+{
+ time *= CONFIG_MX27_CLK32;
+ do_div(time, CONFIG_SYS_HZ);
+ return time;
+}
+
+static inline unsigned long long us_to_tick(unsigned long long us)
+{
+ us = us * CONFIG_MX27_CLK32 + 999999;
+ do_div(us, 1000000);
+ return us;
+}
+#else
+/* ~2% error */
+#define TICK_PER_TIME ((CONFIG_MX27_CLK32 + CONFIG_SYS_HZ / 2) / \
+ CONFIG_SYS_HZ)
+#define US_PER_TICK (1000000 / CONFIG_MX27_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;
+ struct gpt_regs *regs = (struct gpt_regs *)IMX_TIM1_BASE;
+ struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+
+ /* setup GP Timer 1 */
+ writel(GPTCR_SWR, ®s->gpt_tctl);
+
+ writel(readl(&pll->pccr0) | PCCR0_GPT1_EN, &pll->pccr0);
+ writel(readl(&pll->pccr1) | PCCR1_PERCLK1_EN, &pll->pccr1);
+
+ for (i = 0; i < 100; i++)
+ writel(0, ®s->gpt_tctl); /* We have no udelay by now */
+ writel(0, ®s->gpt_tprer); /* 32Khz */
+ /* Freerun Mode, PERCLK1 input */
+ writel(readl(®s->gpt_tctl) | GPTCR_CLKSOURCE_32 | GPTCR_FRR,
+ ®s->gpt_tctl);
+ writel(readl(®s->gpt_tctl) | GPTCR_TEN, ®s->gpt_tctl);
+
+ return 0;
+}
+
+void reset_timer_masked(void)
+{
+ struct gpt_regs *regs = (struct gpt_regs *)IMX_TIM1_BASE;
+ /* reset time */
+ /* capture current incrementer value time */
+ lastinc = readl(®s->gpt_tcn);
+ timestamp = 0; /* start "advancing" time stamp from 0 */
+}
+
+void reset_timer(void)
+{
+ reset_timer_masked();
+}
+
+unsigned long long get_ticks (void)
+{
+ struct gpt_regs *regs = (struct gpt_regs *)IMX_TIM1_BASE;
+ ulong now = readl(®s->gpt_tcn); /* 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_MX27_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*/;
+}
+
--- /dev/null
+#define AIPI1_PSR0 0x10000000
+#define AIPI1_PSR1 0x10000004
+#define AIPI2_PSR0 0x10020000
+#define AIPI2_PSR1 0x10020004
+#define CSCR 0x10027000
+#define MPCTL0 0x10027004
+#define SPCTL0 0x1002700c
+#define PCDR0 0x10027018
+#define PCDR1 0x1002701c
+#define PCCR0 0x10027020
+#define PCCR1 0x10027024
+#define ESDCTL0_ROF 0x00
+#define ESDCFG0_ROF 0x04
+#define ESDCTL1_ROF 0x08
+#define ESDCFG1_ROF 0x0C
+#define ESDMISC_ROF 0x10
--- /dev/null
+/*
+ *
+ * (c) 2009 Ilya Yanok, Emcraft Systems <yanok@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
+ */
+
+#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 */
--- /dev/null
+/*
+ *
+ * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ * (c) 2009 Ilya Yanok, Emcraft Systems <yanok@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
+ */
+
+#ifndef _IMX_REGS_H
+#define _IMX_REGS_H
+
+#ifndef __ASSEMBLY__
+
+extern void imx_gpio_mode (int gpio_mode);
+
+/* AIPI */
+struct aipi_regs {
+ u32 psr0;
+ u32 psr1;
+};
+
+/* System Control */
+struct system_control_regs {
+ u32 res[5];
+ u32 fmcr;
+ u32 gpcr;
+ u32 wbcr;
+ u32 dscr1;
+ u32 dscr2;
+ u32 dscr3;
+ u32 dscr4;
+ u32 dscr5;
+ u32 dscr6;
+ u32 dscr7;
+ u32 dscr8;
+ u32 dscr9;
+ u32 dscr10;
+ u32 dscr11;
+ u32 dscr12;
+ u32 dscr13;
+ u32 pscr;
+ u32 pmcr;
+ u32 res1;
+ u32 dcvr0;
+ u32 dcvr1;
+ u32 dcvr2;
+ u32 dcvr3;
+};
+
+/* Chip Select Registers */
+struct weim_regs {
+ u32 cs0u; /* Chip Select 0 Upper Register */
+ u32 cs0l; /* Chip Select 0 Lower Register */
+ u32 cs0a; /* Chip Select 0 Addition Register */
+ u32 pad0;
+ u32 cs1u; /* Chip Select 1 Upper Register */
+ u32 cs1l; /* Chip Select 1 Lower Register */
+ u32 cs1a; /* Chip Select 1 Addition Register */
+ u32 pad1;
+ u32 cs2u; /* Chip Select 2 Upper Register */
+ u32 cs2l; /* Chip Select 2 Lower Register */
+ u32 cs2a; /* Chip Select 2 Addition Register */
+ u32 pad2;
+ u32 cs3u; /* Chip Select 3 Upper Register */
+ u32 cs3l; /* Chip Select 3 Lower Register */
+ u32 cs3a; /* Chip Select 3 Addition Register */
+ u32 pad3;
+ u32 cs4u; /* Chip Select 4 Upper Register */
+ u32 cs4l; /* Chip Select 4 Lower Register */
+ u32 cs4a; /* Chip Select 4 Addition Register */
+ u32 pad4;
+ u32 cs5u; /* Chip Select 5 Upper Register */
+ u32 cs5l; /* Chip Select 5 Lower Register */
+ u32 cs5a; /* Chip Select 5 Addition Register */
+ u32 pad5;
+ u32 eim; /* WEIM Configuration Register */
+};
+
+/* SDRAM Controller registers */
+struct esdramc_regs {
+/* Enhanced SDRAM Control Register 0 */
+ u32 esdctl0;
+/* Enhanced SDRAM Configuration Register 0 */
+ u32 esdcfg0;
+/* Enhanced SDRAM Control Register 1 */
+ u32 esdctl1;
+/* Enhanced SDRAM Configuration Register 1 */
+ u32 esdcfg1;
+/* Enhanced SDRAM Miscellanious Register */
+ u32 esdmisc;
+};
+
+/* Watchdog Registers*/
+struct wdog_regs {
+ u32 wcr;
+ u32 wsr;
+ u32 wstr;
+};
+
+/* PLL registers */
+struct pll_regs {
+ u32 cscr; /* Clock Source Control Register */
+ u32 mpctl0; /* MCU PLL Control Register 0 */
+ u32 mpctl1; /* MCU PLL Control Register 1 */
+ u32 spctl0; /* System PLL Control Register 0 */
+ u32 spctl1; /* System PLL Control Register 1 */
+ u32 osc26mctl; /* Oscillator 26M Register */
+ u32 pcdr0; /* Peripheral Clock Divider Register 0 */
+ u32 pcdr1; /* Peripheral Clock Divider Register 1 */
+ u32 pccr0; /* Peripheral Clock Control Register 0 */
+ u32 pccr1; /* Peripheral Clock Control Register 1 */
+ u32 ccsr; /* Clock Control Status Register */
+};
+
+/*
+ * Definitions for the clocksource registers
+ */
+struct gpt_regs {
+ u32 gpt_tctl;
+ u32 gpt_tprer;
+ u32 gpt_tcmp;
+ u32 gpt_tcr;
+ u32 gpt_tcn;
+ u32 gpt_tstat;
+};
+
+/*
+ * GPIO Module and I/O Multiplexer
+ */
+#define PORTA 0
+#define PORTB 1
+#define PORTC 2
+#define PORTD 3
+#define PORTE 4
+#define PORTF 5
+
+struct gpio_regs {
+ struct {
+ u32 ddir;
+ u32 ocr1;
+ u32 ocr2;
+ u32 iconfa1;
+ u32 iconfa2;
+ u32 iconfb1;
+ u32 iconfb2;
+ u32 dr;
+ u32 gius;
+ u32 ssr;
+ u32 icr1;
+ u32 icr2;
+ u32 imr;
+ u32 isr;
+ u32 gpr;
+ u32 swr;
+ u32 puen;
+ u32 res[0x2f];
+ } port[6];
+};
+
+/* IIM Control Registers */
+struct iim_regs {
+ u32 iim_stat;
+ u32 iim_statm;
+ u32 iim_err;
+ u32 iim_emask;
+ u32 iim_fctl;
+ u32 iim_ua;
+ u32 iim_la;
+ u32 iim_sdat;
+ u32 iim_prev;
+ u32 iim_srev;
+ u32 iim_prog_p;
+ u32 iim_scs0;
+ u32 iim_scs1;
+ u32 iim_scs2;
+ u32 iim_scs3;
+ u32 res[0x1F0];
+ u32 iim_bank_area0[0x100];
+};
+#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)
+
+/* 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)
+
+
+/* important definition of some bits of WCR */
+#define WCR_WDE 0x04
+
+#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)
+
+/* Clocksource 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 */
+
+#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)
+
+#define IIM_STAT_BUSY (1 << 7)
+#define IIM_STAT_PRGD (1 << 1)
+#define IIM_STAT_SNSD (1 << 0)
+#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)
+
+/* Definitions for i.MX27 TO2 */
+#define IIM0_MAC 5
+#define IIM0_SCC_KEY 11
+#define IIM1_SUID 1
+
+#endif /* _IMX_REGS_H */
+
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