[U-Boot] [PATCH 01/31] iMX28: Initial support for iMX28 CPU

Marek Vasut marek.vasut at gmail.com
Thu Sep 8 22:42:29 CEST 2011


This patch supports:
- Timers
- Debug UART
- Clock

Signed-off-by: Marek Vasut <marek.vasut at gmail.com>
Cc: Stefano Babic <sbabic at denx.de>
Cc: Wolfgang Denk <wd at denx.de>
Cc: Detlev Zundel <dzu at denx.de>
---
 arch/arm/cpu/arm926ejs/mx28/Makefile          |   46 +++
 arch/arm/cpu/arm926ejs/mx28/clock.c           |  359 ++++++++++++++++++++++
 arch/arm/cpu/arm926ejs/mx28/mx28.c            |  131 ++++++++
 arch/arm/cpu/arm926ejs/mx28/timer.c           |  143 +++++++++
 arch/arm/include/asm/arch-mx28/clock.h        |   48 +++
 arch/arm/include/asm/arch-mx28/imx-regs.h     |   33 ++
 arch/arm/include/asm/arch-mx28/mx28.h         |   30 ++
 arch/arm/include/asm/arch-mx28/regs-base.h    |   88 ++++++
 arch/arm/include/asm/arch-mx28/regs-clkctrl.h |  308 +++++++++++++++++++
 arch/arm/include/asm/arch-mx28/regs-common.h  |   66 ++++
 arch/arm/include/asm/arch-mx28/regs-power.h   |  409 +++++++++++++++++++++++++
 arch/arm/include/asm/arch-mx28/regs-ssp.h     |  345 +++++++++++++++++++++
 arch/arm/include/asm/arch-mx28/regs-timrot.h  |  167 ++++++++++
 arch/arm/include/asm/arch-mx28/regs-uartdbg.h |  182 +++++++++++
 14 files changed, 2355 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/cpu/arm926ejs/mx28/Makefile
 create mode 100644 arch/arm/cpu/arm926ejs/mx28/clock.c
 create mode 100644 arch/arm/cpu/arm926ejs/mx28/mx28.c
 create mode 100644 arch/arm/cpu/arm926ejs/mx28/timer.c
 create mode 100644 arch/arm/include/asm/arch-mx28/clock.h
 create mode 100644 arch/arm/include/asm/arch-mx28/imx-regs.h
 create mode 100644 arch/arm/include/asm/arch-mx28/mx28.h
 create mode 100644 arch/arm/include/asm/arch-mx28/regs-base.h
 create mode 100644 arch/arm/include/asm/arch-mx28/regs-clkctrl.h
 create mode 100644 arch/arm/include/asm/arch-mx28/regs-common.h
 create mode 100644 arch/arm/include/asm/arch-mx28/regs-power.h
 create mode 100644 arch/arm/include/asm/arch-mx28/regs-ssp.h
 create mode 100644 arch/arm/include/asm/arch-mx28/regs-timrot.h
 create mode 100644 arch/arm/include/asm/arch-mx28/regs-uartdbg.h

diff --git a/arch/arm/cpu/arm926ejs/mx28/Makefile b/arch/arm/cpu/arm926ejs/mx28/Makefile
new file mode 100644
index 0000000..98504f9
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/mx28/Makefile
@@ -0,0 +1,46 @@
+#
+# (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).o
+
+COBJS	= clock.o mx28.o timer.o
+
+SRCS	:= $(START:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+START	:= $(addprefix $(obj),$(START))
+
+all:	$(obj).depend $(LIB)
+
+$(LIB):	$(OBJS)
+	$(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/arm/cpu/arm926ejs/mx28/clock.c b/arch/arm/cpu/arm926ejs/mx28/clock.c
new file mode 100644
index 0000000..c81c305
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/mx28/clock.c
@@ -0,0 +1,359 @@
+/*
+ * Freescale i.MX28 clock setup code
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * Based on code from LTIB:
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ *
+ * 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/errno.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/regs-common.h>
+#include <asm/arch/regs-base.h>
+#include <asm/arch/regs-clkctrl.h>
+#include <asm/arch/regs-ssp.h>
+
+/* The PLL frequency is always 480MHz, see section 10.2 in iMX28 datasheet. */
+#define	PLL_FREQ_KHZ	480000
+#define	PLL_FREQ_COEF	18
+/* The XTAL frequency is always 24MHz, see section 10.2 in iMX28 datasheet. */
+#define	XTAL_FREQ_KHZ	24000
+
+#define	PLL_FREQ_MHZ	(PLL_FREQ_KHZ / 1000)
+#define	XTAL_FREQ_MHZ	(XTAL_FREQ_KHZ / 1000)
+
+uint32_t mx28_get_pclk(void)
+{
+	struct mx28_clkctrl_regs *clkctrl_regs =
+		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+
+	uint32_t clkctrl, clkseq, clkfrac;
+	uint32_t frac, div;
+
+	clkctrl = readl(&clkctrl_regs->hw_clkctrl_cpu);
+
+	/* No support of fractional divider calculation */
+	if (clkctrl &
+		(CLKCTRL_CPU_DIV_XTAL_FRAC_EN | CLKCTRL_CPU_DIV_CPU_FRAC_EN)) {
+		return 0;
+	}
+
+	clkseq = readl(&clkctrl_regs->hw_clkctrl_clkseq);
+
+	/* XTAL Path */
+	if (clkseq & CLKCTRL_CLKSEQ_BYPASS_CPU) {
+		div = (clkctrl & CLKCTRL_CPU_DIV_XTAL_MASK) >>
+			CLKCTRL_CPU_DIV_XTAL_OFFSET;
+		return XTAL_FREQ_MHZ / div;
+	}
+
+	/* REF Path */
+	clkfrac = readl(&clkctrl_regs->hw_clkctrl_frac0);
+	frac = clkfrac & CLKCTRL_FRAC0_CPUFRAC_MASK;
+	div = clkctrl & CLKCTRL_CPU_DIV_CPU_MASK;
+	return (PLL_FREQ_MHZ * PLL_FREQ_COEF / frac) / div;
+}
+
+uint32_t mx28_get_hclk(void)
+{
+	struct mx28_clkctrl_regs *clkctrl_regs =
+		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+
+	uint32_t div;
+	uint32_t clkctrl;
+
+	clkctrl = readl(&clkctrl_regs->hw_clkctrl_hbus);
+
+	/* No support of fractional divider calculation */
+	if (clkctrl & CLKCTRL_HBUS_DIV_FRAC_EN)
+		return 0;
+
+	div = clkctrl & CLKCTRL_HBUS_DIV_MASK;
+	return mx28_get_pclk() / div;
+}
+
+uint32_t mx28_get_emiclk(void)
+{
+	struct mx28_clkctrl_regs *clkctrl_regs =
+		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+
+	uint32_t frac, div;
+	uint32_t clkctrl, clkseq, clkfrac;
+
+	clkseq = readl(&clkctrl_regs->hw_clkctrl_clkseq);
+	clkctrl = readl(&clkctrl_regs->hw_clkctrl_emi);
+
+	/* XTAL Path */
+	if (clkseq & CLKCTRL_CLKSEQ_BYPASS_EMI) {
+		div = (clkctrl & CLKCTRL_EMI_DIV_XTAL_MASK) >>
+			CLKCTRL_EMI_DIV_XTAL_OFFSET;
+		return XTAL_FREQ_MHZ / div;
+	}
+
+	clkfrac = readl(&clkctrl_regs->hw_clkctrl_frac0);
+
+	/* REF Path */
+	frac = (clkfrac & CLKCTRL_FRAC0_EMIFRAC_MASK) >>
+		CLKCTRL_FRAC0_EMIFRAC_OFFSET;
+	div = clkctrl & CLKCTRL_EMI_DIV_EMI_MASK;
+	return (PLL_FREQ_MHZ * PLL_FREQ_COEF / frac) / div;
+}
+
+static inline void enable_gpmi_clk(void)
+{
+	struct mx28_clkctrl_regs *clkctrl_regs =
+		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+
+	/* Clear bypass bit */
+	writel(CLKCTRL_CLKSEQ_BYPASS_GPMI,
+		&clkctrl_regs->hw_clkctrl_clkseq_set);
+
+	/* Set GPMI clock to ref_gpmi / 12 */
+	clrsetbits_le32(&clkctrl_regs->hw_clkctrl_gpmi,
+		CLKCTRL_GPMI_CLKGATE | CLKCTRL_GPMI_DIV_MASK, 1);
+}
+
+uint32_t mx28_get_gpmiclk(void)
+{
+	struct mx28_clkctrl_regs *clkctrl_regs =
+		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+
+	uint32_t frac, div;
+	uint32_t clkctrl, clkseq, clkfrac;
+
+	/* Enable GPMI clock */
+	enable_gpmi_clk();
+
+	clkseq = readl(&clkctrl_regs->hw_clkctrl_clkseq);
+	clkctrl = readl(&clkctrl_regs->hw_clkctrl_gpmi);
+
+	/* XTAL Path */
+	if (clkseq & CLKCTRL_CLKSEQ_BYPASS_GPMI) {
+		div = clkctrl & CLKCTRL_GPMI_DIV_MASK;
+		return XTAL_FREQ_MHZ / div;
+	}
+
+	clkfrac = readl(&clkctrl_regs->hw_clkctrl_frac1);
+
+	/* REF Path */
+	frac = (clkfrac & CLKCTRL_FRAC1_GPMIFRAC_MASK) >>
+		CLKCTRL_FRAC1_GPMIFRAC_OFFSET;
+	div = clkctrl & CLKCTRL_GPMI_DIV_MASK;
+	return (PLL_FREQ_MHZ * PLL_FREQ_COEF / frac) / div;
+}
+
+/*
+ * Set IO clock frequency, in kHz
+ */
+void mx28_set_ioclk(unsigned int io, uint32_t freq)
+{
+	struct mx28_clkctrl_regs *clkctrl_regs =
+		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+	uint32_t div;
+
+	if (freq == 0)
+		return;
+
+	if (io > 1)
+		return;
+
+	div = (PLL_FREQ_KHZ * PLL_FREQ_COEF) / freq;
+
+	if (div < 18)
+		div = 18;
+
+	if (div > 35)
+		div = 35;
+
+	if (io == 0) {
+		writel(CLKCTRL_FRAC0_CLKGATEIO0,
+			&clkctrl_regs->hw_clkctrl_frac0_set);
+		clrsetbits_le32(&clkctrl_regs->hw_clkctrl_frac0,
+				CLKCTRL_FRAC0_IO0FRAC_MASK,
+				div << CLKCTRL_FRAC0_IO0FRAC_OFFSET);
+		writel(CLKCTRL_FRAC0_CLKGATEIO0,
+			&clkctrl_regs->hw_clkctrl_frac0_clr);
+	} else {
+		writel(CLKCTRL_FRAC0_CLKGATEIO1,
+			&clkctrl_regs->hw_clkctrl_frac0_set);
+		clrsetbits_le32(&clkctrl_regs->hw_clkctrl_frac0,
+				CLKCTRL_FRAC0_IO1FRAC_MASK,
+				div << CLKCTRL_FRAC0_IO1FRAC_OFFSET);
+		writel(CLKCTRL_FRAC0_CLKGATEIO1,
+			&clkctrl_regs->hw_clkctrl_frac0_clr);
+	}
+}
+
+/*
+ * Get IO clock, returns IO clock in kHz
+ */
+uint32_t mx28_get_ioclk(unsigned int io)
+{
+	struct mx28_clkctrl_regs *clkctrl_regs =
+		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+	uint32_t tmp, ret;
+
+	if (io > 1)
+		return 0;
+
+	tmp = readl(&clkctrl_regs->hw_clkctrl_frac0);
+
+	if (io == 0)
+		ret = (tmp & CLKCTRL_FRAC0_IO0FRAC_MASK) >>
+			CLKCTRL_FRAC0_IO0FRAC_OFFSET;
+	else
+		ret = (tmp & CLKCTRL_FRAC0_IO1FRAC_MASK) >>
+			CLKCTRL_FRAC0_IO1FRAC_OFFSET;
+
+	return (PLL_FREQ_KHZ * PLL_FREQ_COEF) / ret;
+}
+
+/*
+ * Configure SSP clock frequency, in kHz
+ */
+void mx28_set_sspclk(unsigned int ssp, uint32_t freq, int xtal)
+{
+	struct mx28_clkctrl_regs *clkctrl_regs =
+		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+	uint32_t clk, clkreg;
+
+	if (ssp > 3)
+		return;
+
+	clkreg = (uint32_t)(&clkctrl_regs->hw_clkctrl_ssp0) + (ssp * 0x10);
+
+	clrbits_le32(clkreg, CLKCTRL_SSP_CLKGATE);
+	while (readl(clkreg) & CLKCTRL_SSP_CLKGATE)
+		;
+
+	if (xtal)
+		clk = XTAL_FREQ_KHZ;
+	else
+		clk = mx28_get_ioclk(ssp >> 1);
+
+	if (freq > clk)
+		return;
+
+	/* Calculate the divider and cap it if necessary */
+	clk /= freq;
+	if (clk > CLKCTRL_SSP_DIV_MASK)
+		clk = CLKCTRL_SSP_DIV_MASK;
+
+	clrsetbits_le32(clkreg, CLKCTRL_SSP_DIV_MASK, clk);
+	while (readl(clkreg) & CLKCTRL_SSP_BUSY)
+		;
+
+	if (xtal)
+		writel(CLKCTRL_CLKSEQ_BYPASS_SSP0 << ssp,
+			&clkctrl_regs->hw_clkctrl_clkseq_set);
+	else
+		writel(CLKCTRL_CLKSEQ_BYPASS_SSP0 << ssp,
+			&clkctrl_regs->hw_clkctrl_clkseq_clr);
+}
+
+/*
+ * Return SSP frequency, in kHz
+ */
+uint32_t mx28_get_sspclk(unsigned int ssp)
+{
+	struct mx28_clkctrl_regs *clkctrl_regs =
+		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+	uint32_t clkreg;
+	uint32_t clk, tmp;
+
+	if (ssp > 3)
+		return 0;
+
+	tmp = readl(&clkctrl_regs->hw_clkctrl_clkseq);
+	if (tmp & (CLKCTRL_CLKSEQ_BYPASS_SSP0 << ssp))
+		return XTAL_FREQ_KHZ;
+
+	clkreg = (uint32_t)(&clkctrl_regs->hw_clkctrl_ssp0) + (ssp * 0x10);
+
+	tmp = readl(clkreg) & CLKCTRL_SSP_DIV_MASK;
+
+	if (tmp == 0)
+		return 0;
+
+	clk = mx28_get_ioclk(ssp >> 1);
+
+	return clk / tmp;
+}
+
+/*
+ * Set SSP/MMC bus frequency, in kHz)
+ */
+void mx28_set_ssp_busclock(unsigned int bus, uint32_t freq)
+{
+	struct mx28_ssp_regs *ssp_regs;
+	const uint32_t sspclk = mx28_get_sspclk(bus);
+	uint32_t reg;
+	uint32_t divide, rate, tgtclk;
+
+	ssp_regs = (struct mx28_ssp_regs *)(MXS_SSP0_BASE + (bus * 0x2000));
+
+	/*
+	 * SSP bit rate = SSPCLK / (CLOCK_DIVIDE * (1 + CLOCK_RATE)),
+	 * CLOCK_DIVIDE has to be an even value from 2 to 254, and
+	 * CLOCK_RATE could be any integer from 0 to 255.
+	 */
+	for (divide = 2; divide < 254; divide += 2) {
+		rate = sspclk / freq / divide;
+		if (rate <= 256)
+			break;
+	}
+
+	tgtclk = sspclk / divide / rate;
+	while (tgtclk > freq) {
+		rate++;
+		tgtclk = sspclk / divide / rate;
+	}
+	if (rate > 256)
+		rate = 256;
+
+	/* Always set timeout the maximum */
+	reg = SSP_TIMING_TIMEOUT_MASK |
+		(divide << SSP_TIMING_CLOCK_DIVIDE_OFFSET) |
+		((rate - 1) << SSP_TIMING_CLOCK_RATE_OFFSET);
+	writel(reg, &ssp_regs->hw_ssp_timing);
+
+	debug("SPI%d: Set freq rate to %d KHz (requested %d KHz)\n",
+		bus, tgtclk, freq);
+}
+
+uint32_t mxc_get_clock(enum mxc_clock clk)
+{
+	switch (clk) {
+	case MXC_ARM_CLK:
+		return mx28_get_pclk() * 1000000;
+	case MXC_GPMI_CLK:
+		return mx28_get_gpmiclk() * 1000000;
+	case MXC_AHB_CLK:
+	case MXC_IPG_CLK:
+		return mx28_get_hclk() * 1000000;
+	}
+
+	return 0;
+}
diff --git a/arch/arm/cpu/arm926ejs/mx28/mx28.c b/arch/arm/cpu/arm926ejs/mx28/mx28.c
new file mode 100644
index 0000000..e3df76b
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/mx28/mx28.c
@@ -0,0 +1,131 @@
+/*
+ * Freescale i.MX28 common code
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * Based on code from LTIB:
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ *
+ * 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/errno.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/regs-common.h>
+#include <asm/arch/regs-base.h>
+#include <asm/arch/regs-clkctrl.h>
+#include <asm/arch/regs-power.h>
+#include <asm/arch/mx28.h>
+
+/* 1 second delay should be plenty of time for block reset. */
+#define	RESET_MAX_TIMEOUT	1000000
+
+#define	MX28_BLOCK_SFTRST	(1 << 31)
+#define	MX28_BLOCK_CLKGATE	(1 << 30)
+
+/* Lowlevel init isn't used on i.MX28, so just have a dummy here */
+inline void lowlevel_init(void) {}
+
+void reset_cpu(ulong ignored) __attribute__((noreturn));
+
+void reset_cpu(ulong ignored)
+{
+	struct mx28_clkctrl_regs *clkctrl_regs =
+		(struct mx28_clkctrl_regs *)MXS_CLKCTRL_BASE;
+	struct mx28_power_regs *power_regs =
+		(struct mx28_power_regs *)MXS_POWER_BASE;
+
+	writel(0, &power_regs->hw_power_charge);
+	writel(0, &power_regs->hw_power_minpwr);
+	writel(CLKCTRL_RESET_DIG, &clkctrl_regs->hw_clkctrl_reset);
+
+	/* Endless loop, reset will exit from here */
+	for (;;)
+		;
+}
+
+int mx28_wait_mask_set(struct mx28_register *reg, uint32_t mask, int timeout)
+{
+	while (--timeout) {
+		if ((readl(&reg->reg) & mask) == mask)
+			break;
+		udelay(1);
+	}
+
+	return !timeout;
+}
+
+int mx28_wait_mask_clr(struct mx28_register *reg, uint32_t mask, int timeout)
+{
+	while (--timeout) {
+		if ((readl(&reg->reg) & mask) == 0)
+			break;
+		udelay(1);
+	}
+
+	return !timeout;
+}
+
+int mx28_reset_block(struct mx28_register *reg)
+{
+	/* Clear SFTRST */
+	writel(MX28_BLOCK_SFTRST, &reg->reg_clr);
+
+	if (mx28_wait_mask_clr(reg, MX28_BLOCK_SFTRST, RESET_MAX_TIMEOUT))
+		return 1;
+
+	/* Clear CLKGATE */
+	writel(MX28_BLOCK_CLKGATE, &reg->reg_clr);
+
+	/* Set SFTRST */
+	writel(MX28_BLOCK_SFTRST, &reg->reg_set);
+
+	/* Wait for CLKGATE being set */
+	if (mx28_wait_mask_set(reg, MX28_BLOCK_CLKGATE, RESET_MAX_TIMEOUT))
+		return 1;
+
+	/* Clear SFTRST */
+	writel(MX28_BLOCK_SFTRST, &reg->reg_clr);
+
+	if (mx28_wait_mask_clr(reg, MX28_BLOCK_SFTRST, RESET_MAX_TIMEOUT))
+		return 1;
+
+	/* Clear CLKGATE */
+	writel(MX28_BLOCK_CLKGATE, &reg->reg_clr);
+
+	if (mx28_wait_mask_clr(reg, MX28_BLOCK_CLKGATE, RESET_MAX_TIMEOUT))
+		return 1;
+
+	return 0;
+}
+
+#if defined(CONFIG_DISPLAY_CPUINFO)
+int print_cpuinfo(void)
+{
+	printf("Freescale i.MX28 family\n");
+	printf("CPU:   %3d MHz\n", mx28_get_pclk());
+	printf("BUS:   %3d MHz\n", mx28_get_hclk());
+	printf("EMI:   %3d MHz\n", mx28_get_emiclk());
+	printf("GPMI:  %3d MHz\n", mx28_get_gpmiclk());
+	return 0;
+}
+#endif
diff --git a/arch/arm/cpu/arm926ejs/mx28/timer.c b/arch/arm/cpu/arm926ejs/mx28/timer.c
new file mode 100644
index 0000000..548cfe3
--- /dev/null
+++ b/arch/arm/cpu/arm926ejs/mx28/timer.c
@@ -0,0 +1,143 @@
+/*
+ * Freescale i.MX28 timer driver
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * Based on code from LTIB:
+ * (C) Copyright 2009-2010 Freescale Semiconductor, Inc.
+ *
+ * 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/regs-common.h>
+#include <asm/arch/regs-base.h>
+#include <asm/arch/regs-timrot.h>
+#include <asm/arch/mx28.h>
+
+/* Maximum fixed count */
+#define TIMER_LOAD_VAL	0xffffffff
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define timestamp (gd->tbl)
+#define lastdec (gd->lastinc)
+
+/*
+ * This driver uses 1kHz clock source.
+ */
+#define	MX28_INCREMENTER_HZ		1000
+
+static inline unsigned long tick_to_time(unsigned long tick)
+{
+	return tick / (MX28_INCREMENTER_HZ / CONFIG_SYS_HZ);
+}
+
+static inline unsigned long time_to_tick(unsigned long time)
+{
+	return time * (MX28_INCREMENTER_HZ / CONFIG_SYS_HZ);
+}
+
+/* Calculate how many ticks happen in "us" microseconds */
+static inline unsigned long us_to_tick(unsigned long us)
+{
+	return (us * MX28_INCREMENTER_HZ) / 1000000;
+}
+
+int timer_init(void)
+{
+	struct mx28_timrot_regs *timrot_regs =
+		(struct mx28_timrot_regs *)MXS_TIMROT_BASE;
+
+	/* Reset Timers and Rotary Encoder module */
+	mx28_reset_block(&timrot_regs->hw_timrot_rotctrl_reg);
+
+	/* Set fixed_count to 0 */
+	writel(0, &timrot_regs->hw_timrot_fixed_count0);
+
+	/* Set UPDATE bit and 1Khz frequency */
+	writel(TIMROT_TIMCTRLn_UPDATE | TIMROT_TIMCTRLn_RELOAD |
+		TIMROT_TIMCTRLn_SELECT_1KHZ_XTAL,
+		&timrot_regs->hw_timrot_timctrl0);
+
+	/* Set fixed_count to maximal value */
+	writel(TIMER_LOAD_VAL, &timrot_regs->hw_timrot_fixed_count0);
+
+	return 0;
+}
+
+ulong get_timer(ulong base)
+{
+	struct mx28_timrot_regs *timrot_regs =
+		(struct mx28_timrot_regs *)MXS_TIMROT_BASE;
+
+	/* Current tick value */
+	uint32_t now = readl(&timrot_regs->hw_timrot_running_count0);
+
+	if (lastdec >= now) {
+		/*
+		 * normal mode (non roll)
+		 * move stamp forward with absolut diff ticks
+		 */
+		timestamp += (lastdec - now);
+	} else {
+		/* we have rollover of decrementer */
+		timestamp += (TIMER_LOAD_VAL - now) + lastdec;
+
+	}
+	lastdec = now;
+
+	return tick_to_time(timestamp) - base;
+}
+
+/* We use the HW_DIGCTL_MICROSECONDS register for sub-millisecond timer. */
+#define	MX28_HW_DIGCTL_MICROSECONDS	0x8001c0c0
+
+void __udelay(unsigned long usec)
+{
+	uint32_t old, new, incr;
+	uint32_t counter = 0;
+
+	old = readl(MX28_HW_DIGCTL_MICROSECONDS);
+
+	while (counter < usec) {
+		new = readl(MX28_HW_DIGCTL_MICROSECONDS);
+
+		/* Check if the timer wrapped. */
+		if (new < old) {
+			incr = 0xffffffff - old;
+			incr += new;
+		} else {
+			incr = new - old;
+		}
+
+		/*
+		 * Check if we are close to the maximum time and the counter
+		 * would wrap if incremented. If that's the case, break out
+		 * from the loop as the requested delay time passed.
+		 */
+		if (counter + incr < counter)
+			break;
+
+		counter += incr;
+		old = new;
+	}
+}
diff --git a/arch/arm/include/asm/arch-mx28/clock.h b/arch/arm/include/asm/arch-mx28/clock.h
new file mode 100644
index 0000000..5e13a51
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/clock.h
@@ -0,0 +1,48 @@
+/*
+ * Freescale i.MX28 Clock
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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 __CLOCK_H__
+#define __CLOCK_H__
+
+enum mxc_clock {
+	MXC_ARM_CLK = 0,
+	MXC_AHB_CLK,
+	MXC_IPG_CLK,
+	MXC_GPMI_CLK,
+};
+
+uint32_t mxc_get_clock(enum mxc_clock clk);
+uint32_t mx28_get_pclk(void);
+uint32_t mx28_get_hclk(void);
+uint32_t mx28_get_emiclk(void);
+uint32_t mx28_get_gpmiclk(void);
+
+void mx28_set_ioclk(unsigned int io, uint32_t freq);
+uint32_t mx28_get_ioclk(unsigned int io);
+void mx28_set_sspclk(unsigned int ssp, uint32_t freq, int xtal);
+uint32_t mx28_get_sspclk(unsigned int ssp);
+void mx28_set_ssp_busclock(unsigned int bus, uint32_t freq);
+
+/* Compatibility with the FEC Ethernet driver */
+#define	imx_get_fecclk()	(mx28_get_hclk() * 1000000)
+
+#endif	/* __CLOCK_H__ */
diff --git a/arch/arm/include/asm/arch-mx28/imx-regs.h b/arch/arm/include/asm/arch-mx28/imx-regs.h
new file mode 100644
index 0000000..a082f1d
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/imx-regs.h
@@ -0,0 +1,33 @@
+/*
+ * Freescale i.MX28 Registers
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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__
+
+#include <asm/arch/regs-common.h>
+#include <asm/arch/regs-base.h>
+#include <asm/arch/regs-clkctrl.h>
+#include <asm/arch/regs-ssp.h>
+#include <asm/arch/regs-timrot.h>
+#include <asm/arch/regs-uartdbg.h>
+
+#endif	/* __IMX_REGS_H__ */
diff --git a/arch/arm/include/asm/arch-mx28/mx28.h b/arch/arm/include/asm/arch-mx28/mx28.h
new file mode 100644
index 0000000..a262c05
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/mx28.h
@@ -0,0 +1,30 @@
+/*
+ * Freescale i.MX28 MX28 specific functions
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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 __MX28_H__
+#define __MX28_H__
+
+int mx28_reset_block(struct mx28_register *reg);
+int mx28_wait_mask_set(struct mx28_register *reg, uint32_t mask, int timeout);
+int mx28_wait_mask_clr(struct mx28_register *reg, uint32_t mask, int timeout);
+
+#endif	/* __MX28_H__ */
diff --git a/arch/arm/include/asm/arch-mx28/regs-base.h b/arch/arm/include/asm/arch-mx28/regs-base.h
new file mode 100644
index 0000000..71e6b98
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-base.h
@@ -0,0 +1,88 @@
+/*
+ * Freescale i.MX28 Peripheral Base Addresses
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * Based on code from LTIB:
+ * Copyright (C) 2008 Embedded Alley Solutions Inc.
+ *
+ * (C) Copyright 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef __REGS_BASE_H__
+#define __REGS_BASE_H__
+
+/*
+ * Register base address
+ */
+#define	MXS_ICOL_BASE		0x80000000
+#define	MXS_HSADC_BASE		0x80002000
+#define	MXS_APBH_BASE		0x80004000
+#define	MXS_PERFMON_BASE	0x80006000
+#define	MXS_BCH_BASE		0x8000A000
+#define	MXS_GPMI_BASE		0x8000C000
+#define	MXS_SSP0_BASE		0x80010000
+#define	MXS_SSP1_BASE		0x80012000
+#define	MXS_SSP2_BASE		0x80014000
+#define	MXS_SSP3_BASE		0x80016000
+#define	MXS_PINCTRL_BASE	0x80018000
+#define	MXS_DIGCTL_BASE		0x8001C000
+#define	MXS_ETM_BASE		0x80022000
+#define	MXS_APBX_BASE		0x80024000
+#define	MXS_DCP_BASE		0x80028000
+#define	MXS_PXP_BASE		0x8002A000
+#define	MXS_OCOTP_BASE		0x8002C000
+#define	MXS_AXI_AHB0_BASE	0x8002E000
+#define	MXS_LCDIF_BASE		0x80030000
+#define	MXS_CAN0_BASE		0x80032000
+#define	MXS_CAN1_BASE		0x80034000
+#define	MXS_SIMDBG_BASE		0x8003C000
+#define	MXS_SIMGPMISEL_BASE	0x8003C200
+#define	MXS_SIMSSPSEL_BASE	0x8003C300
+#define	MXS_SIMMEMSEL_BASE	0x8003C400
+#define	MXS_GPIOMON_BASE	0x8003C500
+#define	MXS_SIMENET_BASE	0x8003C700
+#define	MXS_ARMJTAG_BASE	0x8003C800
+#define	MXS_CLKCTRL_BASE	0x80040000
+#define	MXS_SAIF0_BASE		0x80042000
+#define	MXS_POWER_BASE		0x80044000
+#define	MXS_SAIF1_BASE		0x80046000
+#define	MXS_LRADC_BASE		0x80050000
+#define	MXS_SPDIF_BASE		0x80054000
+#define	MXS_RTC_BASE		0x80056000
+#define	MXS_I2C0_BASE		0x80058000
+#define	MXS_I2C1_BASE		0x8005A000
+#define	MXS_PWM_BASE		0x80064000
+#define	MXS_TIMROT_BASE		0x80068000
+#define	MXS_UARTAPP0_BASE	0x8006A000
+#define	MXS_UARTAPP1_BASE	0x8006C000
+#define	MXS_UARTAPP2_BASE	0x8006E000
+#define	MXS_UARTAPP3_BASE	0x80070000
+#define	MXS_UARTAPP4_BASE	0x80072000
+#define	MXS_UARTDBG_BASE	0x80074000
+#define	MXS_USBPHY0_BASE	0x8007C000
+#define	MXS_USBPHY1_BASE	0x8007E000
+#define	MXS_USBCTRL0_BASE	0x80080000
+#define	MXS_USBCTRL1_BASE	0x80090000
+#define	MXS_DFLPT_BASE		0x800C0000
+#define	MXS_DRAM_BASE		0x800E0000
+#define	MXS_ENET0_BASE		0x800F0000
+#define	MXS_ENET1_BASE		0x800F4000
+
+#endif /* __REGS_BASE_H__ */
diff --git a/arch/arm/include/asm/arch-mx28/regs-clkctrl.h b/arch/arm/include/asm/arch-mx28/regs-clkctrl.h
new file mode 100644
index 0000000..66d492f
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-clkctrl.h
@@ -0,0 +1,308 @@
+/*
+ * Freescale i.MX28 CLKCTRL Register Definitions
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * Based on code from LTIB:
+ * Copyright 2008-2010 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#ifndef __REGS_CLKCTRL_H__
+#define __REGS_CLKCTRL_H__
+
+struct mx28_clkctrl_regs {
+	mx28_reg(hw_clkctrl_pll0ctrl0)		/* 0x00 */
+	mx28_reg(hw_clkctrl_pll0ctrl1)		/* 0x10 */
+	mx28_reg(hw_clkctrl_pll1ctrl0)		/* 0x20 */
+	mx28_reg(hw_clkctrl_pll1ctrl1)		/* 0x30 */
+	mx28_reg(hw_clkctrl_pll2ctrl0)		/* 0x40 */
+	mx28_reg(hw_clkctrl_cpu)		/* 0x50 */
+	mx28_reg(hw_clkctrl_hbus)		/* 0x60 */
+	mx28_reg(hw_clkctrl_xbus)		/* 0x70 */
+	mx28_reg(hw_clkctrl_xtal)		/* 0x80 */
+	mx28_reg(hw_clkctrl_ssp0)		/* 0x90 */
+	mx28_reg(hw_clkctrl_ssp1)		/* 0xa0 */
+	mx28_reg(hw_clkctrl_ssp2)		/* 0xb0 */
+	mx28_reg(hw_clkctrl_ssp3)		/* 0xc0 */
+	mx28_reg(hw_clkctrl_gpmi)		/* 0xd0 */
+	mx28_reg(hw_clkctrl_spdif)		/* 0xe0 */
+	mx28_reg(hw_clkctrl_emi)		/* 0xf0 */
+	mx28_reg(hw_clkctrl_saif0)		/* 0x100 */
+	mx28_reg(hw_clkctrl_saif1)		/* 0x110 */
+	mx28_reg(hw_clkctrl_lcdif)		/* 0x120 */
+	mx28_reg(hw_clkctrl_etm)		/* 0x130 */
+	mx28_reg(hw_clkctrl_enet)		/* 0x140 */
+	mx28_reg(hw_clkctrl_hsadc)		/* 0x150 */
+	mx28_reg(hw_clkctrl_flexcan)		/* 0x160 */
+
+	uint32_t	reserved[16];
+
+	mx28_reg(hw_clkctrl_frac0)		/* 0x1b0 */
+	mx28_reg(hw_clkctrl_frac1)		/* 0x1c0 */
+	mx28_reg(hw_clkctrl_clkseq)		/* 0x1d0 */
+	mx28_reg(hw_clkctrl_reset)		/* 0x1e0 */
+	mx28_reg(hw_clkctrl_status)		/* 0x1f0 */
+	mx28_reg(hw_clkctrl_version)		/* 0x200 */
+};
+
+#define	CLKCTRL_PLL0CTRL0_LFR_SEL_MASK		(0x3 << 28)
+#define	CLKCTRL_PLL0CTRL0_LFR_SEL_OFFSET	28
+#define	CLKCTRL_PLL0CTRL0_LFR_SEL_DEFAULT	(0x0 << 28)
+#define	CLKCTRL_PLL0CTRL0_LFR_SEL_TIMES_2	(0x1 << 28)
+#define	CLKCTRL_PLL0CTRL0_LFR_SEL_TIMES_05	(0x2 << 28)
+#define	CLKCTRL_PLL0CTRL0_LFR_SEL_UNDEFINED	(0x3 << 28)
+#define	CLKCTRL_PLL0CTRL0_CP_SEL_MASK		(0x3 << 24)
+#define	CLKCTRL_PLL0CTRL0_CP_SEL_OFFSET		24
+#define	CLKCTRL_PLL0CTRL0_CP_SEL_DEFAULT	(0x0 << 24)
+#define	CLKCTRL_PLL0CTRL0_CP_SEL_TIMES_2	(0x1 << 24)
+#define	CLKCTRL_PLL0CTRL0_CP_SEL_TIMES_05	(0x2 << 24)
+#define	CLKCTRL_PLL0CTRL0_CP_SEL_UNDEFINED	(0x3 << 24)
+#define	CLKCTRL_PLL0CTRL0_DIV_SEL_MASK		(0x3 << 20)
+#define	CLKCTRL_PLL0CTRL0_DIV_SEL_OFFSET	20
+#define	CLKCTRL_PLL0CTRL0_DIV_SEL_DEFAULT	(0x0 << 20)
+#define	CLKCTRL_PLL0CTRL0_DIV_SEL_LOWER		(0x1 << 20)
+#define	CLKCTRL_PLL0CTRL0_DIV_SEL_LOWEST	(0x2 << 20)
+#define	CLKCTRL_PLL0CTRL0_DIV_SEL_UNDEFINED	(0x3 << 20)
+#define	CLKCTRL_PLL0CTRL0_EN_USB_CLKS		(1 << 18)
+#define	CLKCTRL_PLL0CTRL0_POWER			(1 << 17)
+
+#define	CLKCTRL_PLL0CTRL1_LOCK			(1 << 31)
+#define	CLKCTRL_PLL0CTRL1_FORCE_LOCK		(1 << 30)
+#define	CLKCTRL_PLL0CTRL1_LOCK_COUNT_MASK	0xffff
+#define	CLKCTRL_PLL0CTRL1_LOCK_COUNT_OFFSET	0
+
+#define	CLKCTRL_PLL1CTRL0_CLKGATEEMI		(1 << 31)
+#define	CLKCTRL_PLL1CTRL0_LFR_SEL_MASK		(0x3 << 28)
+#define	CLKCTRL_PLL1CTRL0_LFR_SEL_OFFSET	28
+#define	CLKCTRL_PLL1CTRL0_LFR_SEL_DEFAULT	(0x0 << 28)
+#define	CLKCTRL_PLL1CTRL0_LFR_SEL_TIMES_2	(0x1 << 28)
+#define	CLKCTRL_PLL1CTRL0_LFR_SEL_TIMES_05	(0x2 << 28)
+#define	CLKCTRL_PLL1CTRL0_LFR_SEL_UNDEFINED	(0x3 << 28)
+#define	CLKCTRL_PLL1CTRL0_CP_SEL_MASK		(0x3 << 24)
+#define	CLKCTRL_PLL1CTRL0_CP_SEL_OFFSET		24
+#define	CLKCTRL_PLL1CTRL0_CP_SEL_DEFAULT	(0x0 << 24)
+#define	CLKCTRL_PLL1CTRL0_CP_SEL_TIMES_2	(0x1 << 24)
+#define	CLKCTRL_PLL1CTRL0_CP_SEL_TIMES_05	(0x2 << 24)
+#define	CLKCTRL_PLL1CTRL0_CP_SEL_UNDEFINED	(0x3 << 24)
+#define	CLKCTRL_PLL1CTRL0_DIV_SEL_MASK		(0x3 << 20)
+#define	CLKCTRL_PLL1CTRL0_DIV_SEL_OFFSET	20
+#define	CLKCTRL_PLL1CTRL0_DIV_SEL_DEFAULT	(0x0 << 20)
+#define	CLKCTRL_PLL1CTRL0_DIV_SEL_LOWER		(0x1 << 20)
+#define	CLKCTRL_PLL1CTRL0_DIV_SEL_LOWEST	(0x2 << 20)
+#define	CLKCTRL_PLL1CTRL0_DIV_SEL_UNDEFINED	(0x3 << 20)
+#define	CLKCTRL_PLL1CTRL0_EN_USB_CLKS		(1 << 18)
+#define	CLKCTRL_PLL1CTRL0_POWER			(1 << 17)
+
+#define	CLKCTRL_PLL1CTRL1_LOCK			(1 << 31)
+#define	CLKCTRL_PLL1CTRL1_FORCE_LOCK		(1 << 30)
+#define	CLKCTRL_PLL1CTRL1_LOCK_COUNT_MASK	0xffff
+#define	CLKCTRL_PLL1CTRL1_LOCK_COUNT_OFFSET	0
+
+#define	CLKCTRL_PLL2CTRL0_CLKGATE		(1 << 31)
+#define	CLKCTRL_PLL2CTRL0_LFR_SEL_MASK		(0x3 << 28)
+#define	CLKCTRL_PLL2CTRL0_LFR_SEL_OFFSET	28
+#define	CLKCTRL_PLL2CTRL0_HOLD_RING_OFF_B	(1 << 26)
+#define	CLKCTRL_PLL2CTRL0_CP_SEL_MASK		(0x3 << 24)
+#define	CLKCTRL_PLL2CTRL0_CP_SEL_OFFSET		24
+#define	CLKCTRL_PLL2CTRL0_POWER			(1 << 23)
+
+#define	CLKCTRL_CPU_BUSY_REF_XTAL		(1 << 29)
+#define	CLKCTRL_CPU_BUSY_REF_CPU		(1 << 28)
+#define	CLKCTRL_CPU_DIV_XTAL_FRAC_EN		(1 << 26)
+#define	CLKCTRL_CPU_DIV_XTAL_MASK		(0x3ff << 16)
+#define	CLKCTRL_CPU_DIV_XTAL_OFFSET		16
+#define	CLKCTRL_CPU_INTERRUPT_WAIT		(1 << 12)
+#define	CLKCTRL_CPU_DIV_CPU_FRAC_EN		(1 << 10)
+#define	CLKCTRL_CPU_DIV_CPU_MASK		0x3f
+#define	CLKCTRL_CPU_DIV_CPU_OFFSET		0
+
+#define	CLKCTRL_HBUS_ASM_BUSY			(1 << 31)
+#define	CLKCTRL_HBUS_DCP_AS_ENABLE		(1 << 30)
+#define	CLKCTRL_HBUS_PXP_AS_ENABLE		(1 << 29)
+#define	CLKCTRL_HBUS_ASM_EMIPORT_AS_ENABLE	(1 << 27)
+#define	CLKCTRL_HBUS_APBHDMA_AS_ENABLE		(1 << 26)
+#define	CLKCTRL_HBUS_APBXDMA_AS_ENABLE		(1 << 25)
+#define	CLKCTRL_HBUS_TRAFFIC_JAM_AS_ENABLE	(1 << 24)
+#define	CLKCTRL_HBUS_TRAFFIC_AS_ENABLE		(1 << 23)
+#define	CLKCTRL_HBUS_CPU_DATA_AS_ENABLE		(1 << 22)
+#define	CLKCTRL_HBUS_CPU_INSTR_AS_ENABLE	(1 << 21)
+#define	CLKCTRL_HBUS_ASM_ENABLE			(1 << 20)
+#define	CLKCTRL_HBUS_AUTO_CLEAR_DIV_ENABLE	(1 << 19)
+#define	CLKCTRL_HBUS_SLOW_DIV_MASK		(0x7 << 16)
+#define	CLKCTRL_HBUS_SLOW_DIV_OFFSET		16
+#define	CLKCTRL_HBUS_SLOW_DIV_BY1		(0x0 << 16)
+#define	CLKCTRL_HBUS_SLOW_DIV_BY2		(0x1 << 16)
+#define	CLKCTRL_HBUS_SLOW_DIV_BY4		(0x2 << 16)
+#define	CLKCTRL_HBUS_SLOW_DIV_BY8		(0x3 << 16)
+#define	CLKCTRL_HBUS_SLOW_DIV_BY16		(0x4 << 16)
+#define	CLKCTRL_HBUS_SLOW_DIV_BY32		(0x5 << 16)
+#define	CLKCTRL_HBUS_DIV_FRAC_EN		(1 << 5)
+#define	CLKCTRL_HBUS_DIV_MASK			0x1f
+#define	CLKCTRL_HBUS_DIV_OFFSET			0
+
+#define	CLKCTRL_XBUS_BUSY			(1 << 31)
+#define	CLKCTRL_XBUS_AUTO_CLEAR_DIV_ENABLE	(1 << 11)
+#define	CLKCTRL_XBUS_DIV_FRAC_EN		(1 << 10)
+#define	CLKCTRL_XBUS_DIV_MASK			0x3ff
+#define	CLKCTRL_XBUS_DIV_OFFSET			0
+
+#define	CLKCTRL_XTAL_UART_CLK_GATE		(1 << 31)
+#define	CLKCTRL_XTAL_PWM_CLK24M_GATE		(1 << 29)
+#define	CLKCTRL_XTAL_TIMROT_CLK32K_GATE		(1 << 26)
+#define	CLKCTRL_XTAL_DIV_UART_MASK		0x3
+#define	CLKCTRL_XTAL_DIV_UART_OFFSET		0
+
+#define	CLKCTRL_SSP_CLKGATE			(1 << 31)
+#define	CLKCTRL_SSP_BUSY			(1 << 29)
+#define	CLKCTRL_SSP_DIV_FRAC_EN			(1 << 9)
+#define	CLKCTRL_SSP_DIV_MASK			0x1ff
+#define	CLKCTRL_SSP_DIV_OFFSET			0
+
+#define	CLKCTRL_GPMI_CLKGATE			(1 << 31)
+#define	CLKCTRL_GPMI_BUSY			(1 << 29)
+#define	CLKCTRL_GPMI_DIV_FRAC_EN		(1 << 10)
+#define	CLKCTRL_GPMI_DIV_MASK			0x3ff
+#define	CLKCTRL_GPMI_DIV_OFFSET			0
+
+#define	CLKCTRL_SPDIF_CLKGATE			(1 << 31)
+
+#define	CLKCTRL_EMI_CLKGATE			(1 << 31)
+#define	CLKCTRL_EMI_SYNC_MODE_EN		(1 << 30)
+#define	CLKCTRL_EMI_BUSY_REF_XTAL		(1 << 29)
+#define	CLKCTRL_EMI_BUSY_REF_EMI		(1 << 28)
+#define	CLKCTRL_EMI_BUSY_REF_CPU		(1 << 27)
+#define	CLKCTRL_EMI_BUSY_SYNC_MODE		(1 << 26)
+#define	CLKCTRL_EMI_BUSY_DCC_RESYNC		(1 << 17)
+#define	CLKCTRL_EMI_DCC_RESYNC_ENABLE		(1 << 16)
+#define	CLKCTRL_EMI_DIV_XTAL_MASK		(0xf << 8)
+#define	CLKCTRL_EMI_DIV_XTAL_OFFSET		8
+#define	CLKCTRL_EMI_DIV_EMI_MASK		0x3f
+#define	CLKCTRL_EMI_DIV_EMI_OFFSET		0
+
+#define	CLKCTRL_SAIF0_CLKGATE			(1 << 31)
+#define	CLKCTRL_SAIF0_BUSY			(1 << 29)
+#define	CLKCTRL_SAIF0_DIV_FRAC_EN		(1 << 16)
+#define	CLKCTRL_SAIF0_DIV_MASK			0xffff
+#define	CLKCTRL_SAIF0_DIV_OFFSET		0
+
+#define	CLKCTRL_SAIF1_CLKGATE			(1 << 31)
+#define	CLKCTRL_SAIF1_BUSY			(1 << 29)
+#define	CLKCTRL_SAIF1_DIV_FRAC_EN		(1 << 16)
+#define	CLKCTRL_SAIF1_DIV_MASK			0xffff
+#define	CLKCTRL_SAIF1_DIV_OFFSET		0
+
+#define	CLKCTRL_DIS_LCDIF_CLKGATE		(1 << 31)
+#define	CLKCTRL_DIS_LCDIF_BUSY			(1 << 29)
+#define	CLKCTRL_DIS_LCDIF_DIV_FRAC_EN		(1 << 13)
+#define	CLKCTRL_DIS_LCDIF_DIV_MASK		0x1fff
+#define	CLKCTRL_DIS_LCDIF_DIV_OFFSET		0
+
+#define	CLKCTRL_ETM_CLKGATE			(1 << 31)
+#define	CLKCTRL_ETM_BUSY			(1 << 29)
+#define	CLKCTRL_ETM_DIV_FRAC_EN			(1 << 7)
+#define	CLKCTRL_ETM_DIV_MASK			0x7f
+#define	CLKCTRL_ETM_DIV_OFFSET			0
+
+#define	CLKCTRL_ENET_SLEEP			(1 << 31)
+#define	CLKCTRL_ENET_DISABLE			(1 << 30)
+#define	CLKCTRL_ENET_STATUS			(1 << 29)
+#define	CLKCTRL_ENET_BUSY_TIME			(1 << 27)
+#define	CLKCTRL_ENET_DIV_TIME_MASK		(0x3f << 21)
+#define	CLKCTRL_ENET_DIV_TIME_OFFSET		21
+#define	CLKCTRL_ENET_TIME_SEL_MASK		(0x3 << 19)
+#define	CLKCTRL_ENET_TIME_SEL_OFFSET		19
+#define	CLKCTRL_ENET_TIME_SEL_XTAL		(0x0 << 19)
+#define	CLKCTRL_ENET_TIME_SEL_PLL		(0x1 << 19)
+#define	CLKCTRL_ENET_TIME_SEL_RMII_CLK		(0x2 << 19)
+#define	CLKCTRL_ENET_TIME_SEL_UNDEFINED		(0x3 << 19)
+#define	CLKCTRL_ENET_CLK_OUT_EN			(1 << 18)
+#define	CLKCTRL_ENET_RESET_BY_SW_CHIP		(1 << 17)
+#define	CLKCTRL_ENET_RESET_BY_SW		(1 << 16)
+
+#define	CLKCTRL_HSADC_RESETB			(1 << 30)
+#define	CLKCTRL_HSADC_FREQDIV_MASK		(0x3 << 28)
+#define	CLKCTRL_HSADC_FREQDIV_OFFSET		28
+
+#define	CLKCTRL_FLEXCAN_STOP_CAN0		(1 << 30)
+#define	CLKCTRL_FLEXCAN_CAN0_STATUS		(1 << 29)
+#define	CLKCTRL_FLEXCAN_STOP_CAN1		(1 << 28)
+#define	CLKCTRL_FLEXCAN_CAN1_STATUS		(1 << 27)
+
+#define	CLKCTRL_FRAC0_CLKGATEIO0		(1 << 31)
+#define	CLKCTRL_FRAC0_IO0_STABLE		(1 << 30)
+#define	CLKCTRL_FRAC0_IO0FRAC_MASK		(0x3f << 24)
+#define	CLKCTRL_FRAC0_IO0FRAC_OFFSET		24
+#define	CLKCTRL_FRAC0_CLKGATEIO1		(1 << 23)
+#define	CLKCTRL_FRAC0_IO1_STABLE		(1 << 22)
+#define	CLKCTRL_FRAC0_IO1FRAC_MASK		(0x3f << 16)
+#define	CLKCTRL_FRAC0_IO1FRAC_OFFSET		16
+#define	CLKCTRL_FRAC0_CLKGATEEMI		(1 << 15)
+#define	CLKCTRL_FRAC0_EMI_STABLE		(1 << 14)
+#define	CLKCTRL_FRAC0_EMIFRAC_MASK		(0x3f << 8)
+#define	CLKCTRL_FRAC0_EMIFRAC_OFFSET		8
+#define	CLKCTRL_FRAC0_CLKGATECPU		(1 << 7)
+#define	CLKCTRL_FRAC0_CPU_STABLE		(1 << 6)
+#define	CLKCTRL_FRAC0_CPUFRAC_MASK		0x3f
+#define	CLKCTRL_FRAC0_CPUFRAC_OFFSET		0
+
+#define	CLKCTRL_FRAC1_CLKGATEGPMI		(1 << 23)
+#define	CLKCTRL_FRAC1_GPMI_STABLE		(1 << 22)
+#define	CLKCTRL_FRAC1_GPMIFRAC_MASK		(0x3f << 16)
+#define	CLKCTRL_FRAC1_GPMIFRAC_OFFSET		16
+#define	CLKCTRL_FRAC1_CLKGATEHSADC		(1 << 15)
+#define	CLKCTRL_FRAC1_HSADC_STABLE		(1 << 14)
+#define	CLKCTRL_FRAC1_HSADCFRAC_MASK		(0x3f << 8)
+#define	CLKCTRL_FRAC1_HSADCFRAC_OFFSET		8
+#define	CLKCTRL_FRAC1_CLKGATEPIX		(1 << 7)
+#define	CLKCTRL_FRAC1_PIX_STABLE		(1 << 6)
+#define	CLKCTRL_FRAC1_PIXFRAC_MASK		0x3f
+#define	CLKCTRL_FRAC1_PIXFRAC_OFFSET		0
+
+#define	CLKCTRL_CLKSEQ_BYPASS_CPU		(1 << 18)
+#define	CLKCTRL_CLKSEQ_BYPASS_DIS_LCDIF		(1 << 14)
+#define	CLKCTRL_CLKSEQ_BYPASS_DIS_LCDIF_BYPASS	(0x1 << 14)
+#define	CLKCTRL_CLKSEQ_BYPASS_DIS_LCDIF_PFD	(0x0 << 14)
+#define	CLKCTRL_CLKSEQ_BYPASS_ETM		(1 << 8)
+#define	CLKCTRL_CLKSEQ_BYPASS_EMI		(1 << 7)
+#define	CLKCTRL_CLKSEQ_BYPASS_SSP3		(1 << 6)
+#define	CLKCTRL_CLKSEQ_BYPASS_SSP2		(1 << 5)
+#define	CLKCTRL_CLKSEQ_BYPASS_SSP1		(1 << 4)
+#define	CLKCTRL_CLKSEQ_BYPASS_SSP0		(1 << 3)
+#define	CLKCTRL_CLKSEQ_BYPASS_GPMI		(1 << 2)
+#define	CLKCTRL_CLKSEQ_BYPASS_SAIF1		(1 << 1)
+#define	CLKCTRL_CLKSEQ_BYPASS_SAIF0		(1 << 0)
+
+#define	CLKCTRL_RESET_WDOG_POR_DISABLE		(1 << 5)
+#define	CLKCTRL_RESET_EXTERNAL_RESET_ENABLE	(1 << 4)
+#define	CLKCTRL_RESET_THERMAL_RESET_ENABLE	(1 << 3)
+#define	CLKCTRL_RESET_THERMAL_RESET_DEFAULT	(1 << 2)
+#define	CLKCTRL_RESET_CHIP			(1 << 1)
+#define	CLKCTRL_RESET_DIG			(1 << 0)
+
+#define	CLKCTRL_STATUS_CPU_LIMIT_MASK		(0x3 << 30)
+#define	CLKCTRL_STATUS_CPU_LIMIT_OFFSET		30
+
+#define	CLKCTRL_VERSION_MAJOR_MASK		(0xff << 24)
+#define	CLKCTRL_VERSION_MAJOR_OFFSET		24
+#define	CLKCTRL_VERSION_MINOR_MASK		(0xff << 16)
+#define	CLKCTRL_VERSION_MINOR_OFFSET		16
+#define	CLKCTRL_VERSION_STEP_MASK		0xffff
+#define	CLKCTRL_VERSION_STEP_OFFSET		0
+
+#endif /* __REGS_CLKCTRL_H__ */
diff --git a/arch/arm/include/asm/arch-mx28/regs-common.h b/arch/arm/include/asm/arch-mx28/regs-common.h
new file mode 100644
index 0000000..774cfa1
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-common.h
@@ -0,0 +1,66 @@
+/*
+ * Freescale i.MX28 Register Accessors
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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 __REGS_COMMON_H__
+#define __REGS_COMMON_H__
+
+/*
+ * The i.MX28 has interesting feature when it comes to register access. There
+ * are four kinds of access to one particular register. Those are:
+ *
+ * 1) Common read/write access. To use this mode, just write to the address of
+ *    the register.
+ * 2) Set bits only access. To set bits, write which bits you want to set to the
+ *    address of the register + 0x4.
+ * 3) Clear bits only access. To clear bits, write which bits you want to clear
+ *    to the address of the register + 0x8.
+ * 4) Toggle bits only access. To toggle bits, write which bits you want to
+ *    toggle to the address of the register + 0xc.
+ *
+ * IMPORTANT NOTE: Not all registers support accesses 2-4! Also, not all bits
+ * can be set/cleared by pure write as in access type 1, some need to be
+ * explicitly set/cleared by using access type 2-3.
+ *
+ * The following macros and structures allow the user to either access the
+ * register in all aforementioned modes (by accessing reg_name, reg_name_set,
+ * reg_name_clr, reg_name_tog) or pass the register structure further into
+ * various functions with correct type information (by accessing reg_name_reg).
+ *
+ */
+
+#define	__mx28_reg(name)		\
+	uint32_t name;			\
+	uint32_t name##_set;		\
+	uint32_t name##_clr;		\
+	uint32_t name##_tog;
+
+struct mx28_register {
+	__mx28_reg(reg)
+};
+
+#define	mx28_reg(name)					\
+	union {						\
+		struct { __mx28_reg(name) };		\
+		struct mx28_register name##_reg;	\
+	};
+
+#endif	/* __REGS_COMMON_H__ */
diff --git a/arch/arm/include/asm/arch-mx28/regs-power.h b/arch/arm/include/asm/arch-mx28/regs-power.h
new file mode 100644
index 0000000..a17514e
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-power.h
@@ -0,0 +1,409 @@
+/*
+ * Freescale i.MX28 Power Controller Register Definitions
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.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
+ *
+ */
+
+#ifndef __REGS_POWER_H__
+#define __REGS_POWER_H__
+
+struct mx28_power_regs {
+	mx28_reg(hw_power_ctrl)
+	mx28_reg(hw_power_5vctrl)
+	mx28_reg(hw_power_minpwr)
+	mx28_reg(hw_power_charge)
+	uint32_t	hw_power_vdddctrl;
+	uint32_t	reserved_vddd[3];
+	uint32_t	hw_power_vddactrl;
+	uint32_t	reserved_vdda[3];
+	uint32_t	hw_power_vddioctrl;
+	uint32_t	reserved_vddio[3];
+	uint32_t	hw_power_vddmemctrl;
+	uint32_t	reserved_vddmem[3];
+	uint32_t	hw_power_dcdc4p2;
+	uint32_t	reserved_dcdc4p2[3];
+	uint32_t	hw_power_misc;
+	uint32_t	reserved_misc[3];
+	uint32_t	hw_power_dclimits;
+	uint32_t	reserved_dclimits[3];
+	mx28_reg(hw_power_loopctrl)
+	uint32_t	hw_power_sts;
+	uint32_t	reserved_sts[3];
+	mx28_reg(hw_power_speed)
+	uint32_t	hw_power_battmonitor;
+	uint32_t	reserved_battmonitor[3];
+
+	uint32_t	reserved[4];
+
+	mx28_reg(hw_power_reset)
+	mx28_reg(hw_power_debug)
+	mx28_reg(hw_power_thermal)
+	mx28_reg(hw_power_usb1ctrl)
+	mx28_reg(hw_power_special)
+	mx28_reg(hw_power_version)
+	mx28_reg(hw_power_anaclkctrl)
+	mx28_reg(hw_power_refctrl)
+};
+
+#define	POWER_CTRL_PSWITCH_MID_TRAN			(1 << 27)
+#define	POWER_CTRL_DCDC4P2_BO_IRQ			(1 << 24)
+#define	POWER_CTRL_ENIRQ_DCDC4P2_BO			(1 << 23)
+#define	POWER_CTRL_VDD5V_DROOP_IRQ			(1 << 22)
+#define	POWER_CTRL_ENIRQ_VDD5V_DROOP			(1 << 21)
+#define	POWER_CTRL_PSWITCH_IRQ				(1 << 20)
+#define	POWER_CTRL_PSWITCH_IRQ_SRC			(1 << 19)
+#define	POWER_CTRL_POLARITY_PSWITCH			(1 << 18)
+#define	POWER_CTRL_ENIRQ_PSWITCH			(1 << 17)
+#define	POWER_CTRL_POLARITY_DC_OK			(1 << 16)
+#define	POWER_CTRL_DC_OK_IRQ				(1 << 15)
+#define	POWER_CTRL_ENIRQ_DC_OK				(1 << 14)
+#define	POWER_CTRL_BATT_BO_IRQ				(1 << 13)
+#define	POWER_CTRL_ENIRQ_BATT_BO			(1 << 12)
+#define	POWER_CTRL_VDDIO_BO_IRQ				(1 << 11)
+#define	POWER_CTRL_ENIRQ_VDDIO_BO			(1 << 10)
+#define	POWER_CTRL_VDDA_BO_IRQ				(1 << 9)
+#define	POWER_CTRL_ENIRQ_VDDA_BO			(1 << 8)
+#define	POWER_CTRL_VDDD_BO_IRQ				(1 << 7)
+#define	POWER_CTRL_ENIRQ_VDDD_BO			(1 << 6)
+#define	POWER_CTRL_POLARITY_VBUSVALID			(1 << 5)
+#define	POWER_CTRL_VBUS_VALID_IRQ			(1 << 4)
+#define	POWER_CTRL_ENIRQ_VBUS_VALID			(1 << 3)
+#define	POWER_CTRL_POLARITY_VDD5V_GT_VDDIO		(1 << 2)
+#define	POWER_CTRL_VDD5V_GT_VDDIO_IRQ			(1 << 1)
+#define	POWER_CTRL_ENIRQ_VDD5V_GT_VDDIO			(1 << 0)
+
+#define	POWER_5VCTRL_VBUSDROOP_TRSH_MASK		(0x3 << 30)
+#define	POWER_5VCTRL_VBUSDROOP_TRSH_OFFSET		30
+#define	POWER_5VCTRL_VBUSDROOP_TRSH_4V3			(0x0 << 30)
+#define	POWER_5VCTRL_VBUSDROOP_TRSH_4V4			(0x1 << 30)
+#define	POWER_5VCTRL_VBUSDROOP_TRSH_4V5			(0x2 << 30)
+#define	POWER_5VCTRL_VBUSDROOP_TRSH_4V7			(0x3 << 30)
+#define	POWER_5VCTRL_HEADROOM_ADJ_MASK			(0x7 << 24)
+#define	POWER_5VCTRL_HEADROOM_ADJ_OFFSET		24
+#define	POWER_5VCTRL_PWD_CHARGE_4P2_MASK		(0x3 << 20)
+#define	POWER_5VCTRL_PWD_CHARGE_4P2_OFFSET		20
+#define	POWER_5VCTRL_CHARGE_4P2_ILIMIT_MASK		(0x3f << 12)
+#define	POWER_5VCTRL_CHARGE_4P2_ILIMIT_OFFSET		12
+#define	POWER_5VCTRL_VBUSVALID_TRSH_MASK		(0x7 << 8)
+#define	POWER_5VCTRL_VBUSVALID_TRSH_OFFSET		8
+#define	POWER_5VCTRL_VBUSVALID_TRSH_2V9			(0x0 << 8)
+#define	POWER_5VCTRL_VBUSVALID_TRSH_4V0			(0x1 << 8)
+#define	POWER_5VCTRL_VBUSVALID_TRSH_4V1			(0x2 << 8)
+#define	POWER_5VCTRL_VBUSVALID_TRSH_4V2			(0x3 << 8)
+#define	POWER_5VCTRL_VBUSVALID_TRSH_4V3			(0x4 << 8)
+#define	POWER_5VCTRL_VBUSVALID_TRSH_4V4			(0x5 << 8)
+#define	POWER_5VCTRL_VBUSVALID_TRSH_4V5			(0x6 << 8)
+#define	POWER_5VCTRL_VBUSVALID_TRSH_4V6			(0x7 << 8)
+#define	POWER_5VCTRL_PWDN_5VBRNOUT			(1 << 7)
+#define	POWER_5VCTRL_ENABLE_LINREG_ILIMIT		(1 << 6)
+#define	POWER_5VCTRL_DCDC_XFER				(1 << 5)
+#define	POWER_5VCTRL_VBUSVALID_5VDETECT			(1 << 4)
+#define	POWER_5VCTRL_VBUSVALID_TO_B			(1 << 3)
+#define	POWER_5VCTRL_ILIMIT_EQ_ZERO			(1 << 2)
+#define	POWER_5VCTRL_PWRUP_VBUS_CMPS			(1 << 1)
+#define	POWER_5VCTRL_ENABLE_DCDC			(1 << 0)
+
+#define	POWER_MINPWR_LOWPWR_4P2				(1 << 14)
+#define	POWER_MINPWR_PWD_BO				(1 << 12)
+#define	POWER_MINPWR_USE_VDDXTAL_VBG			(1 << 11)
+#define	POWER_MINPWR_PWD_ANA_CMPS			(1 << 10)
+#define	POWER_MINPWR_ENABLE_OSC				(1 << 9)
+#define	POWER_MINPWR_SELECT_OSC				(1 << 8)
+#define	POWER_MINPWR_FBG_OFF				(1 << 7)
+#define	POWER_MINPWR_DOUBLE_FETS			(1 << 6)
+#define	POWER_MINPWR_HALFFETS				(1 << 5)
+#define	POWER_MINPWR_LESSANA_I				(1 << 4)
+#define	POWER_MINPWR_PWD_XTAL24				(1 << 3)
+#define	POWER_MINPWR_DC_STOPCLK				(1 << 2)
+#define	POWER_MINPWR_EN_DC_PFM				(1 << 1)
+#define	POWER_MINPWR_DC_HALFCLK				(1 << 0)
+
+#define	POWER_CHARGE_ADJ_VOLT_MASK			(0x7 << 24)
+#define	POWER_CHARGE_ADJ_VOLT_OFFSET			24
+#define	POWER_CHARGE_ADJ_VOLT_M025P			(0x1 << 24)
+#define	POWER_CHARGE_ADJ_VOLT_P050P			(0x2 << 24)
+#define	POWER_CHARGE_ADJ_VOLT_M075P			(0x3 << 24)
+#define	POWER_CHARGE_ADJ_VOLT_P025P			(0x4 << 24)
+#define	POWER_CHARGE_ADJ_VOLT_M050P			(0x5 << 24)
+#define	POWER_CHARGE_ADJ_VOLT_P075P			(0x6 << 24)
+#define	POWER_CHARGE_ADJ_VOLT_M100P			(0x7 << 24)
+#define	POWER_CHARGE_ENABLE_LOAD			(1 << 22)
+#define	POWER_CHARGE_ENABLE_FAULT_DETECT		(1 << 20)
+#define	POWER_CHARGE_CHRG_STS_OFF			(1 << 19)
+#define	POWER_CHARGE_LIION_4P1				(1 << 18)
+#define	POWER_CHARGE_PWD_BATTCHRG			(1 << 16)
+#define	POWER_CHARGE_ENABLE_CHARGER_USB1		(1 << 13)
+#define	POWER_CHARGE_ENABLE_CHARGER_USB0		(1 << 12)
+#define	POWER_CHARGE_STOP_ILIMIT_MASK			(0xf << 8)
+#define	POWER_CHARGE_STOP_ILIMIT_OFFSET			8
+#define	POWER_CHARGE_STOP_ILIMIT_10MA			(0x1 << 8)
+#define	POWER_CHARGE_STOP_ILIMIT_20MA			(0x2 << 8)
+#define	POWER_CHARGE_STOP_ILIMIT_50MA			(0x4 << 8)
+#define	POWER_CHARGE_STOP_ILIMIT_100MA			(0x8 << 8)
+#define	POWER_CHARGE_BATTCHRG_I_MASK			0x3f
+#define	POWER_CHARGE_BATTCHRG_I_OFFSET			0
+#define	POWER_CHARGE_BATTCHRG_I_10MA			0x01
+#define	POWER_CHARGE_BATTCHRG_I_20MA			0x02
+#define	POWER_CHARGE_BATTCHRG_I_50MA			0x04
+#define	POWER_CHARGE_BATTCHRG_I_100MA			0x08
+#define	POWER_CHARGE_BATTCHRG_I_200MA			0x10
+#define	POWER_CHARGE_BATTCHRG_I_400MA			0x20
+
+#define	POWER_VDDDCTRL_ADJTN_MASK			(0xf << 28)
+#define	POWER_VDDDCTRL_ADJTN_OFFSET			28
+#define	POWER_VDDDCTRL_PWDN_BRNOUT			(1 << 23)
+#define	POWER_VDDDCTRL_DISABLE_STEPPING			(1 << 22)
+#define	POWER_VDDDCTRL_ENABLE_LINREG			(1 << 21)
+#define	POWER_VDDDCTRL_DISABLE_FET			(1 << 20)
+#define	POWER_VDDDCTRL_LINREG_OFFSET_MASK		(0x3 << 16)
+#define	POWER_VDDDCTRL_LINREG_OFFSET_OFFSET		16
+#define	POWER_VDDDCTRL_LINREG_OFFSET_0STEPS		(0x0 << 16)
+#define	POWER_VDDDCTRL_LINREG_OFFSET_1STEPS_ABOVE	(0x1 << 16)
+#define	POWER_VDDDCTRL_LINREG_OFFSET_1STEPS_BELOW	(0x2 << 16)
+#define	POWER_VDDDCTRL_LINREG_OFFSET_2STEPS_BELOW	(0x3 << 16)
+#define	POWER_VDDDCTRL_BO_OFFSET_MASK			(0x7 << 8)
+#define	POWER_VDDDCTRL_BO_OFFSET_OFFSET			8
+#define	POWER_VDDDCTRL_TRG_MASK				0x1f
+#define	POWER_VDDDCTRL_TRG_OFFSET			0
+
+#define	POWER_VDDACTRL_PWDN_BRNOUT			(1 << 19)
+#define	POWER_VDDACTRL_DISABLE_STEPPING			(1 << 18)
+#define	POWER_VDDACTRL_ENABLE_LINREG			(1 << 17)
+#define	POWER_VDDACTRL_DISABLE_FET			(1 << 16)
+#define	POWER_VDDACTRL_LINREG_OFFSET_MASK		(0x3 << 12)
+#define	POWER_VDDACTRL_LINREG_OFFSET_OFFSET		12
+#define	POWER_VDDACTRL_LINREG_OFFSET_0STEPS		(0x0 << 12)
+#define	POWER_VDDACTRL_LINREG_OFFSET_1STEPS_ABOVE	(0x1 << 12)
+#define	POWER_VDDACTRL_LINREG_OFFSET_1STEPS_BELOW	(0x2 << 12)
+#define	POWER_VDDACTRL_LINREG_OFFSET_2STEPS_BELOW	(0x3 << 12)
+#define	POWER_VDDACTRL_BO_OFFSET_MASK			(0x7 << 8)
+#define	POWER_VDDACTRL_BO_OFFSET_OFFSET			8
+#define	POWER_VDDACTRL_TRG_MASK				0x1f
+#define	POWER_VDDACTRL_TRG_OFFSET			0
+
+#define	POWER_VDDIOCTRL_ADJTN_MASK			(0xf << 20)
+#define	POWER_VDDIOCTRL_ADJTN_OFFSET			20
+#define	POWER_VDDIOCTRL_PWDN_BRNOUT			(1 << 18)
+#define	POWER_VDDIOCTRL_DISABLE_STEPPING		(1 << 17)
+#define	POWER_VDDIOCTRL_DISABLE_FET			(1 << 16)
+#define	POWER_VDDIOCTRL_LINREG_OFFSET_MASK		(0x3 << 12)
+#define	POWER_VDDIOCTRL_LINREG_OFFSET_OFFSET		12
+#define	POWER_VDDIOCTRL_LINREG_OFFSET_0STEPS		(0x0 << 12)
+#define	POWER_VDDIOCTRL_LINREG_OFFSET_1STEPS_ABOVE	(0x1 << 12)
+#define	POWER_VDDIOCTRL_LINREG_OFFSET_1STEPS_BELOW	(0x2 << 12)
+#define	POWER_VDDIOCTRL_LINREG_OFFSET_2STEPS_BELOW	(0x3 << 12)
+#define	POWER_VDDIOCTRL_BO_OFFSET_MASK			(0x7 << 8)
+#define	POWER_VDDIOCTRL_BO_OFFSET_OFFSET		8
+#define	POWER_VDDIOCTRL_TRG_MASK			0x1f
+#define	POWER_VDDIOCTRL_TRG_OFFSET			0
+
+#define	POWER_VDDMEMCTRL_PULLDOWN_ACTIVE		(1 << 10)
+#define	POWER_VDDMEMCTRL_ENABLE_ILIMIT			(1 << 9)
+#define	POWER_VDDMEMCTRL_ENABLE_LINREG			(1 << 8)
+#define	POWER_VDDMEMCTRL_BO_OFFSET_MASK			(0x7 << 5)
+#define	POWER_VDDMEMCTRL_BO_OFFSET_OFFSET		5
+#define	POWER_VDDMEMCTRL_TRG_MASK			0x1f
+#define	POWER_VDDMEMCTRL_TRG_OFFSET			0
+
+#define	POWER_DCDC4P2_DROPOUT_CTRL_MASK			(0xf << 28)
+#define	POWER_DCDC4P2_DROPOUT_CTRL_OFFSET		28
+#define	POWER_DCDC4P2_DROPOUT_CTRL_200MV		(0x3 << 30)
+#define	POWER_DCDC4P2_DROPOUT_CTRL_100MV		(0x2 << 30)
+#define	POWER_DCDC4P2_DROPOUT_CTRL_50MV			(0x1 << 30)
+#define	POWER_DCDC4P2_DROPOUT_CTRL_25MV			(0x0 << 30)
+#define	POWER_DCDC4P2_DROPOUT_CTRL_SRC_4P2		(0x0 << 28)
+#define	POWER_DCDC4P2_DROPOUT_CTRL_SRC_4P2_LT_BATT	(0x1 << 28)
+#define	POWER_DCDC4P2_DROPOUT_CTRL_SRC_SEL		(0x2 << 28)
+#define	POWER_DCDC4P2_ISTEAL_THRESH_MASK		(0x3 << 24)
+#define	POWER_DCDC4P2_ISTEAL_THRESH_OFFSET		24
+#define	POWER_DCDC4P2_ENABLE_4P2			(1 << 23)
+#define	POWER_DCDC4P2_ENABLE_DCDC			(1 << 22)
+#define	POWER_DCDC4P2_HYST_DIR				(1 << 21)
+#define	POWER_DCDC4P2_HYST_THRESH			(1 << 20)
+#define	POWER_DCDC4P2_TRG_MASK				(0x7 << 16)
+#define	POWER_DCDC4P2_TRG_OFFSET			16
+#define	POWER_DCDC4P2_TRG_4V2				(0x0 << 16)
+#define	POWER_DCDC4P2_TRG_4V1				(0x1 << 16)
+#define	POWER_DCDC4P2_TRG_4V0				(0x2 << 16)
+#define	POWER_DCDC4P2_TRG_3V9				(0x3 << 16)
+#define	POWER_DCDC4P2_TRG_BATT				(0x4 << 16)
+#define	POWER_DCDC4P2_BO_MASK				(0x1f << 8)
+#define	POWER_DCDC4P2_BO_OFFSET				8
+#define	POWER_DCDC4P2_CMPTRIP_MASK			0x1f
+#define	POWER_DCDC4P2_CMPTRIP_OFFSET			0
+
+#define	POWER_MISC_FREQSEL_MASK				(0x7 << 4)
+#define	POWER_MISC_FREQSEL_OFFSET			4
+#define	POWER_MISC_FREQSEL_20MHZ			(0x1 << 4)
+#define	POWER_MISC_FREQSEL_24MHZ			(0x2 << 4)
+#define	POWER_MISC_FREQSEL_19MHZ			(0x3 << 4)
+#define	POWER_MISC_FREQSEL_14MHZ			(0x4 << 4)
+#define	POWER_MISC_FREQSEL_18MHZ			(0x5 << 4)
+#define	POWER_MISC_FREQSEL_21MHZ			(0x6 << 4)
+#define	POWER_MISC_FREQSEL_17MHZ			(0x7 << 4)
+#define	POWER_MISC_DISABLE_FET_BO_LOGIC			(1 << 3)
+#define	POWER_MISC_DELAY_TIMING				(1 << 2)
+#define	POWER_MISC_TEST					(1 << 1)
+#define	POWER_MISC_SEL_PLLCLK				(1 << 0)
+
+#define	POWER_DCLIMITS_POSLIMIT_BUCK_MASK		(0x7f << 8)
+#define	POWER_DCLIMITS_POSLIMIT_BUCK_OFFSET		8
+#define	POWER_DCLIMITS_NEGLIMIT_MASK			0x7f
+#define	POWER_DCLIMITS_NETLIMIT_OFFSET			0
+
+#define	POWER_LOOPCTRL_TOGGLE_DIF			(1 << 20)
+#define	POWER_LOOPCTRL_HYST_SIGN			(1 << 19)
+#define	POWER_LOOPCTRL_EN_CM_HYST			(1 << 18)
+#define	POWER_LOOPCTRL_EN_DF_HYST			(1 << 17)
+#define	POWER_LOOPCTRL_CM_HYST_THRESH			(1 << 16)
+#define	POWER_LOOPCTRL_DF_HYST_THRESH			(1 << 15)
+#define	POWER_LOOPCTRL_RCSCALE_THRESH			(1 << 14)
+#define	POWER_LOOPCTRL_EN_RCSCALE_MASK			(0x3 << 12)
+#define	POWER_LOOPCTRL_EN_RCSCALE_OFFSET		12
+#define	POWER_LOOPCTRL_EN_RCSCALE_DIS			(0x0 << 12)
+#define	POWER_LOOPCTRL_EN_RCSCALE_2X			(0x1 << 12)
+#define	POWER_LOOPCTRL_EN_RCSCALE_4X			(0x2 << 12)
+#define	POWER_LOOPCTRL_EN_RCSCALE_8X			(0x3 << 12)
+#define	POWER_LOOPCTRL_DC_FF_MASK			(0x7 << 8)
+#define	POWER_LOOPCTRL_DC_FF_OFFSET			8
+#define	POWER_LOOPCTRL_DC_R_MASK			(0xf << 4)
+#define	POWER_LOOPCTRL_DC_R_OFFSET			4
+#define	POWER_LOOPCTRL_DC_C_MASK			0x3
+#define	POWER_LOOPCTRL_DC_C_OFFSET			0
+#define	POWER_LOOPCTRL_DC_C_MAX				0x0
+#define	POWER_LOOPCTRL_DC_C_2X				0x1
+#define	POWER_LOOPCTRL_DC_C_4X				0x2
+#define	POWER_LOOPCTRL_DC_C_MIN				0x3
+
+#define	POWER_STS_PWRUP_SOURCE_MASK			(0x3f << 24)
+#define	POWER_STS_PWRUP_SOURCE_OFFSET			24
+#define	POWER_STS_PWRUP_SOURCE_5V			(0x20 << 24)
+#define	POWER_STS_PWRUP_SOURCE_RTC			(0x10 << 24)
+#define	POWER_STS_PWRUP_SOURCE_PSWITCH_HIGH		(0x02 << 24)
+#define	POWER_STS_PWRUP_SOURCE_PSWITCH_MID		(0x01 << 24)
+#define	POWER_STS_PSWITCH_MASK				(0x3 << 20)
+#define	POWER_STS_PSWITCH_OFFSET			20
+#define	POWER_STS_THERMAL_WARNING			(1 << 19)
+#define	POWER_STS_VDDMEM_BO				(1 << 18)
+#define	POWER_STS_AVALID0_STATUS			(1 << 17)
+#define	POWER_STS_BVALID0_STATUS			(1 << 16)
+#define	POWER_STS_VBUSVALID0_STATUS			(1 << 15)
+#define	POWER_STS_SESSEND0_STATUS			(1 << 14)
+#define	POWER_STS_BATT_BO				(1 << 13)
+#define	POWER_STS_VDD5V_FAULT				(1 << 12)
+#define	POWER_STS_CHRGSTS				(1 << 11)
+#define	POWER_STS_DCDC_4P2_BO				(1 << 10)
+#define	POWER_STS_DC_OK					(1 << 9)
+#define	POWER_STS_VDDIO_BO				(1 << 8)
+#define	POWER_STS_VDDA_BO				(1 << 7)
+#define	POWER_STS_VDDD_BO				(1 << 6)
+#define	POWER_STS_VDD5V_GT_VDDIO			(1 << 5)
+#define	POWER_STS_VDD5V_DROOP				(1 << 4)
+#define	POWER_STS_AVALID0				(1 << 3)
+#define	POWER_STS_BVALID0				(1 << 2)
+#define	POWER_STS_VBUSVALID0				(1 << 1)
+#define	POWER_STS_SESSEND0				(1 << 0)
+
+#define	POWER_SPEED_STATUS_MASK				(0xffff << 8)
+#define	POWER_SPEED_STATUS_OFFSET			8
+#define	POWER_SPEED_STATUS_SEL_MASK			(0x3 << 6)
+#define	POWER_SPEED_STATUS_SEL_OFFSET			6
+#define	POWER_SPEED_STATUS_SEL_DCDC_STAT		(0x0 << 6)
+#define	POWER_SPEED_STATUS_SEL_CORE_STAT		(0x1 << 6)
+#define	POWER_SPEED_STATUS_SEL_ARM_STAT			(0x2 << 6)
+#define	POWER_SPEED_CTRL_MASK				0x3
+#define	POWER_SPEED_CTRL_OFFSET				0
+#define	POWER_SPEED_CTRL_SS_OFF				0x0
+#define	POWER_SPEED_CTRL_SS_ON				0x1
+#define	POWER_SPEED_CTRL_SS_ENABLE			0x3
+
+#define	POWER_BATTMONITOR_BATT_VAL_MASK			(0x3ff << 16)
+#define	POWER_BATTMONITOR_BATT_VAL_OFFSET		16
+#define	POWER_BATTMONITOR_PWDN_BATTBRNOUT_5VDETECT_EN	(1 << 11)
+#define	POWER_BATTMONITOR_EN_BATADJ			(1 << 10)
+#define	POWER_BATTMONITOR_PWDN_BATTBRNOUT		(1 << 9)
+#define	POWER_BATTMONITOR_BRWNOUT_PWD			(1 << 8)
+#define	POWER_BATTMONITOR_BRWNOUT_LVL_MASK		0x1f
+#define	POWER_BATTMONITOR_BRWNOUT_LVL_OFFSET		0
+
+#define	POWER_RESET_UNLOCK_MASK				(0xffff << 16)
+#define	POWER_RESET_UNLOCK_OFFSET			16
+#define	POWER_RESET_UNLOCK_KEY				(0x3e77 << 16)
+#define	POWER_RESET_FASTFALL_PSWITCH_OFF		(1 << 2)
+#define	POWER_RESET_PWD_OFF				(1 << 1)
+#define	POWER_RESET_PWD					(1 << 0)
+
+#define	POWER_DEBUG_VBUSVALIDPIOLOCK			(1 << 3)
+#define	POWER_DEBUG_AVALIDPIOLOCK			(1 << 2)
+#define	POWER_DEBUG_BVALIDPIOLOCK			(1 << 1)
+#define	POWER_DEBUG_SESSENDPIOLOCK			(1 << 0)
+
+#define	POWER_THERMAL_TEST				(1 << 8)
+#define	POWER_THERMAL_PWD				(1 << 7)
+#define	POWER_THERMAL_LOW_POWER				(1 << 6)
+#define	POWER_THERMAL_OFFSET_ADJ_MASK			(0x3 << 4)
+#define	POWER_THERMAL_OFFSET_ADJ_OFFSET			4
+#define	POWER_THERMAL_OFFSET_ADJ_ENABLE			(1 << 3)
+#define	POWER_THERMAL_TEMP_THRESHOLD_MASK		0x7
+#define	POWER_THERMAL_TEMP_THRESHOLD_OFFSET		0
+
+#define	POWER_USB1CTRL_AVALID1				(1 << 3)
+#define	POWER_USB1CTRL_BVALID1				(1 << 2)
+#define	POWER_USB1CTRL_VBUSVALID1			(1 << 1)
+#define	POWER_USB1CTRL_SESSEND1				(1 << 0)
+
+#define	POWER_SPECIAL_TEST_MASK				0xffffffff
+#define	POWER_SPECIAL_TEST_OFFSET			0
+
+#define	POWER_VERSION_MAJOR_MASK			(0xff << 24)
+#define	POWER_VERSION_MAJOR_OFFSET			24
+#define	POWER_VERSION_MINOR_MASK			(0xff << 16)
+#define	POWER_VERSION_MINOR_OFFSET			16
+#define	POWER_VERSION_STEP_MASK				0xffff
+#define	POWER_VERSION_STEP_OFFSET			0
+
+#define	POWER_ANACLKCTRL_CLKGATE_0			(1 << 31)
+#define	POWER_ANACLKCTRL_OUTDIV_MASK			(0x7 << 28)
+#define	POWER_ANACLKCTRL_OUTDIV_OFFSET			28
+#define	POWER_ANACLKCTRL_INVERT_OUTCLK			(1 << 27)
+#define	POWER_ANACLKCTRL_CLKGATE_I			(1 << 26)
+#define	POWER_ANACLKCTRL_DITHER_OFF			(1 << 10)
+#define	POWER_ANACLKCTRL_SLOW_DITHER			(1 << 9)
+#define	POWER_ANACLKCTRL_INVERT_INCLK			(1 << 8)
+#define	POWER_ANACLKCTRL_INCLK_SHIFT_MASK		(0x3 << 4)
+#define	POWER_ANACLKCTRL_INCLK_SHIFT_OFFSET		4
+#define	POWER_ANACLKCTRL_INDIV_MASK			0x7
+#define	POWER_ANACLKCTRL_INDIV_OFFSET			0
+
+#define	POWER_REFCTRL_FASTSETTLING			(1 << 26)
+#define	POWER_REFCTRL_RAISE_REF				(1 << 25)
+#define	POWER_REFCTRL_XTAL_BGR_BIAS			(1 << 24)
+#define	POWER_REFCTRL_VBG_ADJ_MASK			(0x7 << 20)
+#define	POWER_REFCTRL_VBG_ADJ_OFFSET			20
+#define	POWER_REFCTRL_LOW_PWR				(1 << 19)
+#define	POWER_REFCTRL_BIAS_CTRL_MASK			(0x3 << 16)
+#define	POWER_REFCTRL_BIAS_CTRL_OFFSET			16
+#define	POWER_REFCTRL_VDDXTAL_TO_VDDD			(1 << 14)
+#define	POWER_REFCTRL_ADJ_ANA				(1 << 13)
+#define	POWER_REFCTRL_ADJ_VAG				(1 << 12)
+#define	POWER_REFCTRL_ANA_REFVAL_MASK			(0xf << 8)
+#define	POWER_REFCTRL_ANA_REFVAL_OFFSET			8
+#define	POWER_REFCTRL_VAG_VAL_MASK			(0xf << 4)
+#define	POWER_REFCTRL_VAG_VAL_OFFSET			4
+
+#endif	/* __REGS_POWER_H__ */
diff --git a/arch/arm/include/asm/arch-mx28/regs-ssp.h b/arch/arm/include/asm/arch-mx28/regs-ssp.h
new file mode 100644
index 0000000..6a275c0
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-ssp.h
@@ -0,0 +1,345 @@
+/*
+ * Freescale i.MX28 SSP Register Definitions
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ *
+ * Based on code from LTIB:
+ * Copyright 2008-2010 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#ifndef __REGS_SSP_H__
+#define __REGS_SSP_H__
+
+struct mx28_ssp_regs {
+	mx28_reg(hw_ssp_ctrl0)
+	mx28_reg(hw_ssp_cmd0)
+	mx28_reg(hw_ssp_cmd1)
+	mx28_reg(hw_ssp_xfer_size)
+	mx28_reg(hw_ssp_block_size)
+	mx28_reg(hw_ssp_compref)
+	mx28_reg(hw_ssp_compmask)
+	mx28_reg(hw_ssp_timing)
+	mx28_reg(hw_ssp_ctrl1)
+	mx28_reg(hw_ssp_data)
+	mx28_reg(hw_ssp_sdresp0)
+	mx28_reg(hw_ssp_sdresp1)
+	mx28_reg(hw_ssp_sdresp2)
+	mx28_reg(hw_ssp_sdresp3)
+	mx28_reg(hw_ssp_ddr_ctrl)
+	mx28_reg(hw_ssp_dll_ctrl)
+	mx28_reg(hw_ssp_status)
+	mx28_reg(hw_ssp_dll_sts)
+	mx28_reg(hw_ssp_debug)
+	mx28_reg(hw_ssp_version)
+};
+
+#define	SSP_CTRL0_SFTRST			(1 << 31)
+#define	SSP_CTRL0_CLKGATE			(1 << 30)
+#define	SSP_CTRL0_RUN				(1 << 29)
+#define	SSP_CTRL0_SDIO_IRQ_CHECK		(1 << 28)
+#define	SSP_CTRL0_LOCK_CS			(1 << 27)
+#define	SSP_CTRL0_IGNORE_CRC			(1 << 26)
+#define	SSP_CTRL0_READ				(1 << 25)
+#define	SSP_CTRL0_DATA_XFER			(1 << 24)
+#define	SSP_CTRL0_BUS_WIDTH_MASK		(0x3 << 22)
+#define	SSP_CTRL0_BUS_WIDTH_OFFSET		22
+#define	SSP_CTRL0_BUS_WIDTH_ONE_BIT		(0x0 << 22)
+#define	SSP_CTRL0_BUS_WIDTH_FOUR_BIT		(0x1 << 22)
+#define	SSP_CTRL0_BUS_WIDTH_EIGHT_BIT		(0x2 << 22)
+#define	SSP_CTRL0_WAIT_FOR_IRQ			(1 << 21)
+#define	SSP_CTRL0_WAIT_FOR_CMD			(1 << 20)
+#define	SSP_CTRL0_LONG_RESP			(1 << 19)
+#define	SSP_CTRL0_CHECK_RESP			(1 << 18)
+#define	SSP_CTRL0_GET_RESP			(1 << 17)
+#define	SSP_CTRL0_ENABLE			(1 << 16)
+
+#define	SSP_CMD0_SOFT_TERMINATE			(1 << 26)
+#define	SSP_CMD0_DBL_DATA_RATE_EN		(1 << 25)
+#define	SSP_CMD0_PRIM_BOOT_OP_EN		(1 << 24)
+#define	SSP_CMD0_BOOT_ACK_EN			(1 << 23)
+#define	SSP_CMD0_SLOW_CLKING_EN			(1 << 22)
+#define	SSP_CMD0_CONT_CLKING_EN			(1 << 21)
+#define	SSP_CMD0_APPEND_8CYC			(1 << 20)
+#define	SSP_CMD0_CMD_MASK			0xff
+#define	SSP_CMD0_CMD_OFFSET			0
+#define	SSP_CMD0_CMD_MMC_GO_IDLE_STATE		0x00
+#define	SSP_CMD0_CMD_MMC_SEND_OP_COND		0x01
+#define	SSP_CMD0_CMD_MMC_ALL_SEND_CID		0x02
+#define	SSP_CMD0_CMD_MMC_SET_RELATIVE_ADDR	0x03
+#define	SSP_CMD0_CMD_MMC_SET_DSR		0x04
+#define	SSP_CMD0_CMD_MMC_RESERVED_5		0x05
+#define	SSP_CMD0_CMD_MMC_SWITCH			0x06
+#define	SSP_CMD0_CMD_MMC_SELECT_DESELECT_CARD	0x07
+#define	SSP_CMD0_CMD_MMC_SEND_EXT_CSD		0x08
+#define	SSP_CMD0_CMD_MMC_SEND_CSD		0x09
+#define	SSP_CMD0_CMD_MMC_SEND_CID		0x0a
+#define	SSP_CMD0_CMD_MMC_READ_DAT_UNTIL_STOP	0x0b
+#define	SSP_CMD0_CMD_MMC_STOP_TRANSMISSION	0x0c
+#define	SSP_CMD0_CMD_MMC_SEND_STATUS		0x0d
+#define	SSP_CMD0_CMD_MMC_BUSTEST_R		0x0e
+#define	SSP_CMD0_CMD_MMC_GO_INACTIVE_STATE	0x0f
+#define	SSP_CMD0_CMD_MMC_SET_BLOCKLEN		0x10
+#define	SSP_CMD0_CMD_MMC_READ_SINGLE_BLOCK	0x11
+#define	SSP_CMD0_CMD_MMC_READ_MULTIPLE_BLOCK	0x12
+#define	SSP_CMD0_CMD_MMC_BUSTEST_W		0x13
+#define	SSP_CMD0_CMD_MMC_WRITE_DAT_UNTIL_STOP	0x14
+#define	SSP_CMD0_CMD_MMC_SET_BLOCK_COUNT	0x17
+#define	SSP_CMD0_CMD_MMC_WRITE_BLOCK		0x18
+#define	SSP_CMD0_CMD_MMC_WRITE_MULTIPLE_BLOCK	0x19
+#define	SSP_CMD0_CMD_MMC_PROGRAM_CID		0x1a
+#define	SSP_CMD0_CMD_MMC_PROGRAM_CSD		0x1b
+#define	SSP_CMD0_CMD_MMC_SET_WRITE_PROT		0x1c
+#define	SSP_CMD0_CMD_MMC_CLR_WRITE_PROT		0x1d
+#define	SSP_CMD0_CMD_MMC_SEND_WRITE_PROT	0x1e
+#define	SSP_CMD0_CMD_MMC_ERASE_GROUP_START	0x23
+#define	SSP_CMD0_CMD_MMC_ERASE_GROUP_END	0x24
+#define	SSP_CMD0_CMD_MMC_ERASE			0x26
+#define	SSP_CMD0_CMD_MMC_FAST_IO		0x27
+#define	SSP_CMD0_CMD_MMC_GO_IRQ_STATE		0x28
+#define	SSP_CMD0_CMD_MMC_LOCK_UNLOCK		0x2a
+#define	SSP_CMD0_CMD_MMC_APP_CMD		0x37
+#define	SSP_CMD0_CMD_MMC_GEN_CMD		0x38
+#define	SSP_CMD0_CMD_SD_GO_IDLE_STATE		0x00
+#define	SSP_CMD0_CMD_SD_ALL_SEND_CID		0x02
+#define	SSP_CMD0_CMD_SD_SEND_RELATIVE_ADDR	0x03
+#define	SSP_CMD0_CMD_SD_SET_DSR			0x04
+#define	SSP_CMD0_CMD_SD_IO_SEND_OP_COND		0x05
+#define	SSP_CMD0_CMD_SD_SELECT_DESELECT_CARD	0x07
+#define	SSP_CMD0_CMD_SD_SEND_CSD		0x09
+#define	SSP_CMD0_CMD_SD_SEND_CID		0x0a
+#define	SSP_CMD0_CMD_SD_STOP_TRANSMISSION	0x0c
+#define	SSP_CMD0_CMD_SD_SEND_STATUS		0x0d
+#define	SSP_CMD0_CMD_SD_GO_INACTIVE_STATE	0x0f
+#define	SSP_CMD0_CMD_SD_SET_BLOCKLEN		0x10
+#define	SSP_CMD0_CMD_SD_READ_SINGLE_BLOCK	0x11
+#define	SSP_CMD0_CMD_SD_READ_MULTIPLE_BLOCK	0x12
+#define	SSP_CMD0_CMD_SD_WRITE_BLOCK		0x18
+#define	SSP_CMD0_CMD_SD_WRITE_MULTIPLE_BLOCK	0x19
+#define	SSP_CMD0_CMD_SD_PROGRAM_CSD		0x1b
+#define	SSP_CMD0_CMD_SD_SET_WRITE_PROT		0x1c
+#define	SSP_CMD0_CMD_SD_CLR_WRITE_PROT		0x1d
+#define	SSP_CMD0_CMD_SD_SEND_WRITE_PROT		0x1e
+#define	SSP_CMD0_CMD_SD_ERASE_WR_BLK_START	0x20
+#define	SSP_CMD0_CMD_SD_ERASE_WR_BLK_END	0x21
+#define	SSP_CMD0_CMD_SD_ERASE_GROUP_START	0x23
+#define	SSP_CMD0_CMD_SD_ERASE_GROUP_END		0x24
+#define	SSP_CMD0_CMD_SD_ERASE			0x26
+#define	SSP_CMD0_CMD_SD_LOCK_UNLOCK		0x2a
+#define	SSP_CMD0_CMD_SD_IO_RW_DIRECT		0x34
+#define	SSP_CMD0_CMD_SD_IO_RW_EXTENDED		0x35
+#define	SSP_CMD0_CMD_SD_APP_CMD			0x37
+#define	SSP_CMD0_CMD_SD_GEN_CMD			0x38
+
+#define	SSP_CMD1_CMD_ARG_MASK			0xffffffff
+#define	SSP_CMD1_CMD_ARG_OFFSET			0
+
+#define	SSP_XFER_SIZE_XFER_COUNT_MASK		0xffffffff
+#define	SSP_XFER_SIZE_XFER_COUNT_OFFSET		0
+
+#define	SSP_BLOCK_SIZE_BLOCK_COUNT_MASK		(0xffffff << 4)
+#define	SSP_BLOCK_SIZE_BLOCK_COUNT_OFFSET	4
+#define	SSP_BLOCK_SIZE_BLOCK_SIZE_MASK		0xf
+#define	SSP_BLOCK_SIZE_BLOCK_SIZE_OFFSET	0
+
+#define	SSP_COMPREF_REFERENCE_MASK		0xffffffff
+#define	SSP_COMPREF_REFERENCE_OFFSET		0
+
+#define	SSP_COMPMASK_MASK_MASK			0xffffffff
+#define	SSP_COMPMASK_MASK_OFFSET		0
+
+#define	SSP_TIMING_TIMEOUT_MASK			(0xffff << 16)
+#define	SSP_TIMING_TIMEOUT_OFFSET		16
+#define	SSP_TIMING_CLOCK_DIVIDE_MASK		(0xff << 8)
+#define	SSP_TIMING_CLOCK_DIVIDE_OFFSET		8
+#define	SSP_TIMING_CLOCK_RATE_MASK		0xff
+#define	SSP_TIMING_CLOCK_RATE_OFFSET		0
+
+#define	SSP_CTRL1_SDIO_IRQ			(1 << 31)
+#define	SSP_CTRL1_SDIO_IRQ_EN			(1 << 30)
+#define	SSP_CTRL1_RESP_ERR_IRQ			(1 << 29)
+#define	SSP_CTRL1_RESP_ERR_IRQ_EN		(1 << 28)
+#define	SSP_CTRL1_RESP_TIMEOUT_IRQ		(1 << 27)
+#define	SSP_CTRL1_RESP_TIMEOUT_IRQ_EN		(1 << 26)
+#define	SSP_CTRL1_DATA_TIMEOUT_IRQ		(1 << 25)
+#define	SSP_CTRL1_DATA_TIMEOUT_IRQ_EN		(1 << 24)
+#define	SSP_CTRL1_DATA_CRC_IRQ			(1 << 23)
+#define	SSP_CTRL1_DATA_CRC_IRQ_EN		(1 << 22)
+#define	SSP_CTRL1_FIFO_UNDERRUN_IRQ		(1 << 21)
+#define	SSP_CTRL1_FIFO_UNDERRUN_EN		(1 << 20)
+#define	SSP_CTRL1_CEATA_CCS_ERR_IRQ		(1 << 19)
+#define	SSP_CTRL1_CEATA_CCS_ERR_IRQ_EN		(1 << 18)
+#define	SSP_CTRL1_RECV_TIMEOUT_IRQ		(1 << 17)
+#define	SSP_CTRL1_RECV_TIMEOUT_IRQ_EN		(1 << 16)
+#define	SSP_CTRL1_FIFO_OVERRUN_IRQ		(1 << 15)
+#define	SSP_CTRL1_FIFO_OVERRUN_IRQ_EN		(1 << 14)
+#define	SSP_CTRL1_DMA_ENABLE			(1 << 13)
+#define	SSP_CTRL1_CEATA_CCS_ERR_EN		(1 << 12)
+#define	SSP_CTRL1_SLAVE_OUT_DISABLE		(1 << 11)
+#define	SSP_CTRL1_PHASE				(1 << 10)
+#define	SSP_CTRL1_POLARITY			(1 << 9)
+#define	SSP_CTRL1_SLAVE_MODE			(1 << 8)
+#define	SSP_CTRL1_WORD_LENGTH_MASK		(0xf << 4)
+#define	SSP_CTRL1_WORD_LENGTH_OFFSET		4
+#define	SSP_CTRL1_WORD_LENGTH_RESERVED0		(0x0 << 4)
+#define	SSP_CTRL1_WORD_LENGTH_RESERVED1		(0x1 << 4)
+#define	SSP_CTRL1_WORD_LENGTH_RESERVED2		(0x2 << 4)
+#define	SSP_CTRL1_WORD_LENGTH_FOUR_BITS		(0x3 << 4)
+#define	SSP_CTRL1_WORD_LENGTH_EIGHT_BITS	(0x7 << 4)
+#define	SSP_CTRL1_WORD_LENGTH_SIXTEEN_BITS	(0xf << 4)
+#define	SSP_CTRL1_SSP_MODE_MASK			0xf
+#define	SSP_CTRL1_SSP_MODE_OFFSET		0
+#define	SSP_CTRL1_SSP_MODE_SPI			0x0
+#define	SSP_CTRL1_SSP_MODE_SSI			0x1
+#define	SSP_CTRL1_SSP_MODE_SD_MMC		0x3
+#define	SSP_CTRL1_SSP_MODE_MS			0x4
+
+#define	SSP_DATA_DATA_MASK			0xffffffff
+#define	SSP_DATA_DATA_OFFSET			0
+
+#define	SSP_SDRESP0_RESP0_MASK			0xffffffff
+#define	SSP_SDRESP0_RESP0_OFFSET		0
+
+#define	SSP_SDRESP1_RESP1_MASK			0xffffffff
+#define	SSP_SDRESP1_RESP1_OFFSET		0
+
+#define	SSP_SDRESP2_RESP2_MASK			0xffffffff
+#define	SSP_SDRESP2_RESP2_OFFSET		0
+
+#define	SSP_SDRESP3_RESP3_MASK			0xffffffff
+#define	SSP_SDRESP3_RESP3_OFFSET		0
+
+#define	SSP_DDR_CTRL_DMA_BURST_TYPE_MASK	(0x3 << 30)
+#define	SSP_DDR_CTRL_DMA_BURST_TYPE_OFFSET	30
+#define	SSP_DDR_CTRL_NIBBLE_POS			(1 << 1)
+#define	SSP_DDR_CTRL_TXCLK_DELAY_TYPE		(1 << 0)
+
+#define	SSP_DLL_CTRL_REF_UPDATE_INT_MASK	(0xf << 28)
+#define	SSP_DLL_CTRL_REF_UPDATE_INT_OFFSET	28
+#define	SSP_DLL_CTRL_SLV_UPDATE_INT_MASK	(0xff << 20)
+#define	SSP_DLL_CTRL_SLV_UPDATE_INT_OFFSET	20
+#define	SSP_DLL_CTRL_SLV_OVERRIDE_VAL_MASK	(0x3f << 10)
+#define	SSP_DLL_CTRL_SLV_OVERRIDE_VAL_OFFSET	10
+#define	SSP_DLL_CTRL_SLV_OVERRIDE		(1 << 9)
+#define	SSP_DLL_CTRL_GATE_UPDATE		(1 << 7)
+#define	SSP_DLL_CTRL_SLV_DLY_TARGET_MASK	(0xf << 3)
+#define	SSP_DLL_CTRL_SLV_DLY_TARGET_OFFSET	3
+#define	SSP_DLL_CTRL_SLV_FORCE_UPD		(1 << 2)
+#define	SSP_DLL_CTRL_RESET			(1 << 1)
+#define	SSP_DLL_CTRL_ENABLE			(1 << 0)
+
+#define	SSP_STATUS_PRESENT			(1 << 31)
+#define	SSP_STATUS_MS_PRESENT			(1 << 30)
+#define	SSP_STATUS_SD_PRESENT			(1 << 29)
+#define	SSP_STATUS_CARD_DETECT			(1 << 28)
+#define	SSP_STATUS_DMABURST			(1 << 22)
+#define	SSP_STATUS_DMASENSE			(1 << 21)
+#define	SSP_STATUS_DMATERM			(1 << 20)
+#define	SSP_STATUS_DMAREQ			(1 << 19)
+#define	SSP_STATUS_DMAEND			(1 << 18)
+#define	SSP_STATUS_SDIO_IRQ			(1 << 17)
+#define	SSP_STATUS_RESP_CRC_ERR			(1 << 16)
+#define	SSP_STATUS_RESP_ERR			(1 << 15)
+#define	SSP_STATUS_RESP_TIMEOUT			(1 << 14)
+#define	SSP_STATUS_DATA_CRC_ERR			(1 << 13)
+#define	SSP_STATUS_TIMEOUT			(1 << 12)
+#define	SSP_STATUS_RECV_TIMEOUT_STAT		(1 << 11)
+#define	SSP_STATUS_CEATA_CCS_ERR		(1 << 10)
+#define	SSP_STATUS_FIFO_OVRFLW			(1 << 9)
+#define	SSP_STATUS_FIFO_FULL			(1 << 8)
+#define	SSP_STATUS_FIFO_EMPTY			(1 << 5)
+#define	SSP_STATUS_FIFO_UNDRFLW			(1 << 4)
+#define	SSP_STATUS_CMD_BUSY			(1 << 3)
+#define	SSP_STATUS_DATA_BUSY			(1 << 2)
+#define	SSP_STATUS_BUSY				(1 << 0)
+
+#define	SSP_DLL_STS_REF_SEL_MASK		(0x3f << 8)
+#define	SSP_DLL_STS_REF_SEL_OFFSET		8
+#define	SSP_DLL_STS_SLV_SEL_MASK		(0x3f << 2)
+#define	SSP_DLL_STS_SLV_SEL_OFFSET		2
+#define	SSP_DLL_STS_REF_LOCK			(1 << 1)
+#define	SSP_DLL_STS_SLV_LOCK			(1 << 0)
+
+#define	SSP_DEBUG_DATACRC_ERR_MASK		(0xf << 28)
+#define	SSP_DEBUG_DATACRC_ERR_OFFSET		28
+#define	SSP_DEBUG_DATA_STALL			(1 << 27)
+#define	SSP_DEBUG_DAT_SM_MASK			(0x7 << 24)
+#define	SSP_DEBUG_DAT_SM_OFFSET			24
+#define	SSP_DEBUG_DAT_SM_DSM_IDLE		(0x0 << 24)
+#define	SSP_DEBUG_DAT_SM_DSM_WORD		(0x2 << 24)
+#define	SSP_DEBUG_DAT_SM_DSM_CRC1		(0x3 << 24)
+#define	SSP_DEBUG_DAT_SM_DSM_CRC2		(0x4 << 24)
+#define	SSP_DEBUG_DAT_SM_DSM_END		(0x5 << 24)
+#define	SSP_DEBUG_MSTK_SM_MASK			(0xf << 20)
+#define	SSP_DEBUG_MSTK_SM_OFFSET		20
+#define	SSP_DEBUG_MSTK_SM_MSTK_IDLE		(0x0 << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_CKON		(0x1 << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_BS1		(0x2 << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_TPC		(0x3 << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_BS2		(0x4 << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_HDSHK		(0x5 << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_BS3		(0x6 << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_RW		(0x7 << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_CRC1		(0x8 << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_CRC2		(0x9 << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_BS0		(0xa << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_END1		(0xb << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_END2W		(0xc << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_END2R		(0xd << 20)
+#define	SSP_DEBUG_MSTK_SM_MSTK_DONE		(0xe << 20)
+#define	SSP_DEBUG_CMD_OE			(1 << 19)
+#define	SSP_DEBUG_DMA_SM_MASK			(0x7 << 16)
+#define	SSP_DEBUG_DMA_SM_OFFSET			16
+#define	SSP_DEBUG_DMA_SM_DMA_IDLE		(0x0 << 16)
+#define	SSP_DEBUG_DMA_SM_DMA_DMAREQ		(0x1 << 16)
+#define	SSP_DEBUG_DMA_SM_DMA_DMAACK		(0x2 << 16)
+#define	SSP_DEBUG_DMA_SM_DMA_STALL		(0x3 << 16)
+#define	SSP_DEBUG_DMA_SM_DMA_BUSY		(0x4 << 16)
+#define	SSP_DEBUG_DMA_SM_DMA_DONE		(0x5 << 16)
+#define	SSP_DEBUG_DMA_SM_DMA_COUNT		(0x6 << 16)
+#define	SSP_DEBUG_MMC_SM_MASK			(0xf << 12)
+#define	SSP_DEBUG_MMC_SM_OFFSET			12
+#define	SSP_DEBUG_MMC_SM_MMC_IDLE		(0x0 << 12)
+#define	SSP_DEBUG_MMC_SM_MMC_CMD		(0x1 << 12)
+#define	SSP_DEBUG_MMC_SM_MMC_TRC		(0x2 << 12)
+#define	SSP_DEBUG_MMC_SM_MMC_RESP		(0x3 << 12)
+#define	SSP_DEBUG_MMC_SM_MMC_RPRX		(0x4 << 12)
+#define	SSP_DEBUG_MMC_SM_MMC_TX			(0x5 << 12)
+#define	SSP_DEBUG_MMC_SM_MMC_CTOK		(0x6 << 12)
+#define	SSP_DEBUG_MMC_SM_MMC_RX			(0x7 << 12)
+#define	SSP_DEBUG_MMC_SM_MMC_CCS		(0x8 << 12)
+#define	SSP_DEBUG_MMC_SM_MMC_PUP		(0x9 << 12)
+#define	SSP_DEBUG_MMC_SM_MMC_WAIT		(0xa << 12)
+#define	SSP_DEBUG_CMD_SM_MASK			(0x3 << 10)
+#define	SSP_DEBUG_CMD_SM_OFFSET			10
+#define	SSP_DEBUG_CMD_SM_CSM_IDLE		(0x0 << 10)
+#define	SSP_DEBUG_CMD_SM_CSM_INDEX		(0x1 << 10)
+#define	SSP_DEBUG_CMD_SM_CSM_ARG		(0x2 << 10)
+#define	SSP_DEBUG_CMD_SM_CSM_CRC		(0x3 << 10)
+#define	SSP_DEBUG_SSP_CMD			(1 << 9)
+#define	SSP_DEBUG_SSP_RESP			(1 << 8)
+#define	SSP_DEBUG_SSP_RXD_MASK			0xff
+#define	SSP_DEBUG_SSP_RXD_OFFSET		0
+
+#define	SSP_VERSION_MAJOR_MASK			(0xff << 24)
+#define	SSP_VERSION_MAJOR_OFFSET		24
+#define	SSP_VERSION_MINOR_MASK			(0xff << 16)
+#define	SSP_VERSION_MINOR_OFFSET		16
+#define	SSP_VERSION_STEP_MASK			0xffff
+#define	SSP_VERSION_STEP_OFFSET			0
+
+#endif /* __REGS_SSP_H__ */
diff --git a/arch/arm/include/asm/arch-mx28/regs-timrot.h b/arch/arm/include/asm/arch-mx28/regs-timrot.h
new file mode 100644
index 0000000..27e511e
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-timrot.h
@@ -0,0 +1,167 @@
+/*
+ * Freescale i.MX28 TIMROT Register Definitions
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ *
+ * Based on code from LTIB:
+ * Copyright 2008-2010 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#ifndef __REGS_TIMROT_H__
+#define __REGS_TIMROT_H__
+
+struct mx28_timrot_regs {
+	mx28_reg(hw_timrot_rotctrl)
+	mx28_reg(hw_timrot_rotcount)
+	mx28_reg(hw_timrot_timctrl0)
+	mx28_reg(hw_timrot_running_count0)
+	mx28_reg(hw_timrot_fixed_count0)
+	mx28_reg(hw_timrot_match_count0)
+	mx28_reg(hw_timrot_timctrl1)
+	mx28_reg(hw_timrot_running_count1)
+	mx28_reg(hw_timrot_fixed_count1)
+	mx28_reg(hw_timrot_match_count1)
+	mx28_reg(hw_timrot_timctrl2)
+	mx28_reg(hw_timrot_running_count2)
+	mx28_reg(hw_timrot_fixed_count2)
+	mx28_reg(hw_timrot_match_count2)
+	mx28_reg(hw_timrot_timctrl3)
+	mx28_reg(hw_timrot_running_count3)
+	mx28_reg(hw_timrot_fixed_count3)
+	mx28_reg(hw_timrot_match_count3)
+	mx28_reg(hw_timrot_version)
+};
+
+#define	TIMROT_ROTCTRL_SFTRST				(1 << 31)
+#define	TIMROT_ROTCTRL_CLKGATE				(1 << 30)
+#define	TIMROT_ROTCTRL_ROTARY_PRESENT			(1 << 29)
+#define	TIMROT_ROTCTRL_TIM3_PRESENT			(1 << 28)
+#define	TIMROT_ROTCTRL_TIM2_PRESENT			(1 << 27)
+#define	TIMROT_ROTCTRL_TIM1_PRESENT			(1 << 26)
+#define	TIMROT_ROTCTRL_TIM0_PRESENT			(1 << 25)
+#define	TIMROT_ROTCTRL_STATE_MASK			(0x7 << 22)
+#define	TIMROT_ROTCTRL_STATE_OFFSET			22
+#define	TIMROT_ROTCTRL_DIVIDER_MASK			(0x3f << 16)
+#define	TIMROT_ROTCTRL_DIVIDER_OFFSET			16
+#define	TIMROT_ROTCTRL_RELATIVE				(1 << 12)
+#define	TIMROT_ROTCTRL_OVERSAMPLE_MASK			(0x3 << 10)
+#define	TIMROT_ROTCTRL_OVERSAMPLE_OFFSET		10
+#define	TIMROT_ROTCTRL_OVERSAMPLE_8X			(0x0 << 10)
+#define	TIMROT_ROTCTRL_OVERSAMPLE_4X			(0x1 << 10)
+#define	TIMROT_ROTCTRL_OVERSAMPLE_2X			(0x2 << 10)
+#define	TIMROT_ROTCTRL_OVERSAMPLE_1X			(0x3 << 10)
+#define	TIMROT_ROTCTRL_POLARITY_B			(1 << 9)
+#define	TIMROT_ROTCTRL_POLARITY_A			(1 << 8)
+#define	TIMROT_ROTCTRL_SELECT_B_MASK			(0xf << 4)
+#define	TIMROT_ROTCTRL_SELECT_B_OFFSET			4
+#define	TIMROT_ROTCTRL_SELECT_B_NEVER_TICK		(0x0 << 4)
+#define	TIMROT_ROTCTRL_SELECT_B_PWM0			(0x1 << 4)
+#define	TIMROT_ROTCTRL_SELECT_B_PWM1			(0x2 << 4)
+#define	TIMROT_ROTCTRL_SELECT_B_PWM2			(0x3 << 4)
+#define	TIMROT_ROTCTRL_SELECT_B_PWM3			(0x4 << 4)
+#define	TIMROT_ROTCTRL_SELECT_B_PWM4			(0x5 << 4)
+#define	TIMROT_ROTCTRL_SELECT_B_PWM5			(0x6 << 4)
+#define	TIMROT_ROTCTRL_SELECT_B_PWM6			(0x7 << 4)
+#define	TIMROT_ROTCTRL_SELECT_B_PWM7			(0x8 << 4)
+#define	TIMROT_ROTCTRL_SELECT_B_ROTARYA			(0x9 << 4)
+#define	TIMROT_ROTCTRL_SELECT_B_ROTARYB			(0xa << 4)
+#define	TIMROT_ROTCTRL_SELECT_A_MASK			0xf
+#define	TIMROT_ROTCTRL_SELECT_A_OFFSET			0
+#define	TIMROT_ROTCTRL_SELECT_A_NEVER_TICK		0x0
+#define	TIMROT_ROTCTRL_SELECT_A_PWM0			0x1
+#define	TIMROT_ROTCTRL_SELECT_A_PWM1			0x2
+#define	TIMROT_ROTCTRL_SELECT_A_PWM2			0x3
+#define	TIMROT_ROTCTRL_SELECT_A_PWM3			0x4
+#define	TIMROT_ROTCTRL_SELECT_A_PWM4			0x5
+#define	TIMROT_ROTCTRL_SELECT_A_PWM5			0x6
+#define	TIMROT_ROTCTRL_SELECT_A_PWM6			0x7
+#define	TIMROT_ROTCTRL_SELECT_A_PWM7			0x8
+#define	TIMROT_ROTCTRL_SELECT_A_ROTARYA			0x9
+#define	TIMROT_ROTCTRL_SELECT_A_ROTARYB			0xa
+
+#define	TIMROT_ROTCOUNT_UPDOWN_MASK			0xffff
+#define	TIMROT_ROTCOUNT_UPDOWN_OFFSET			0
+
+#define	TIMROT_TIMCTRLn_IRQ				(1 << 15)
+#define	TIMROT_TIMCTRLn_IRQ_EN				(1 << 14)
+#define	TIMROT_TIMCTRLn_MATCH_MODE			(1 << 11)
+#define	TIMROT_TIMCTRLn_POLARITY			(1 << 8)
+#define	TIMROT_TIMCTRLn_UPDATE				(1 << 7)
+#define	TIMROT_TIMCTRLn_RELOAD				(1 << 6)
+#define	TIMROT_TIMCTRLn_PRESCALE_MASK			(0x3 << 4)
+#define	TIMROT_TIMCTRLn_PRESCALE_OFFSET			4
+#define	TIMROT_TIMCTRLn_PRESCALE_DIV_BY_1		(0x0 << 4)
+#define	TIMROT_TIMCTRLn_PRESCALE_DIV_BY_2		(0x1 << 4)
+#define	TIMROT_TIMCTRLn_PRESCALE_DIV_BY_4		(0x2 << 4)
+#define	TIMROT_TIMCTRLn_PRESCALE_DIV_BY_8		(0x3 << 4)
+#define	TIMROT_TIMCTRLn_SELECT_MASK			0xf
+#define	TIMROT_TIMCTRLn_SELECT_OFFSET			0
+#define	TIMROT_TIMCTRLn_SELECT_NEVER_TICK		0x0
+#define	TIMROT_TIMCTRLn_SELECT_PWM0			0x1
+#define	TIMROT_TIMCTRLn_SELECT_PWM1			0x2
+#define	TIMROT_TIMCTRLn_SELECT_PWM2			0x3
+#define	TIMROT_TIMCTRLn_SELECT_PWM3			0x4
+#define	TIMROT_TIMCTRLn_SELECT_PWM4			0x5
+#define	TIMROT_TIMCTRLn_SELECT_PWM5			0x6
+#define	TIMROT_TIMCTRLn_SELECT_PWM6			0x7
+#define	TIMROT_TIMCTRLn_SELECT_PWM7			0x8
+#define	TIMROT_TIMCTRLn_SELECT_ROTARYA			0x9
+#define	TIMROT_TIMCTRLn_SELECT_ROTARYB			0xa
+#define	TIMROT_TIMCTRLn_SELECT_32KHZ_XTAL		0xb
+#define	TIMROT_TIMCTRLn_SELECT_8KHZ_XTAL		0xc
+#define	TIMROT_TIMCTRLn_SELECT_4KHZ_XTAL		0xd
+#define	TIMROT_TIMCTRLn_SELECT_1KHZ_XTAL		0xe
+#define	TIMROT_TIMCTRLn_SELECT_TICK_ALWAYS		0xf
+
+#define	TIMROT_RUNNING_COUNTn_RUNNING_COUNT_MASK	0xffffffff
+#define	TIMROT_RUNNING_COUNTn_RUNNING_COUNT_OFFSET	0
+
+#define	TIMROT_FIXED_COUNTn_FIXED_COUNT_MASK		0xffffffff
+#define	TIMROT_FIXED_COUNTn_FIXED_COUNT_OFFSET		0
+
+#define	TIMROT_MATCH_COUNTn_MATCH_COUNT_MASK		0xffffffff
+#define	TIMROT_MATCH_COUNTn_MATCH_COUNT_OFFSET		0
+
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_MASK		(0xf << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_OFFSET		16
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_NEVER_TICK		(0x0 << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_PWM0		(0x1 << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_PWM1		(0x2 << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_PWM2		(0x3 << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_PWM3		(0x4 << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_PWM4		(0x5 << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_PWM5		(0x6 << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_PWM6		(0x7 << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_PWM7		(0x8 << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_ROTARYA		(0x9 << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_ROTARYB		(0xa << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_32KHZ_XTAL		(0xb << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_8KHZ_XTAL		(0xc << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_4KHZ_XTAL		(0xd << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_1KHZ_XTAL		(0xe << 16)
+#define	TIMROT_TIMCTRL3_TEST_SIGNAL_TICK_ALWAYS		(0xf << 16)
+#define	TIMROT_TIMCTRL3_DUTY_CYCLE			(1 << 9)
+
+#define	TIMROT_VERSION_MAJOR_MASK			(0xff << 24)
+#define	TIMROT_VERSION_MAJOR_OFFSET			24
+#define	TIMROT_VERSION_MINOR_MASK			(0xff << 16)
+#define	TIMROT_VERSION_MINOR_OFFSET			16
+#define	TIMROT_VERSION_STEP_MASK			0xffff
+#define	TIMROT_VERSION_STEP_OFFSET			0
+
+#endif /* __REGS_TIMROT_H__ */
diff --git a/arch/arm/include/asm/arch-mx28/regs-uartdbg.h b/arch/arm/include/asm/arch-mx28/regs-uartdbg.h
new file mode 100644
index 0000000..a2819e5
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-uartdbg.h
@@ -0,0 +1,182 @@
+/*
+ * Freescale i.MX28 UARTDBG Register Definitions
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at gmail.com>
+ *
+ * Based on code from LTIB:
+ * Copyright 2008-2010 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#ifndef __REGS_UARTDBG_H__
+#define __REGS_UARTDBG_H__
+
+struct mx28_uartdbg_regs {
+	uint32_t	hw_uartdbg_dr;		/* 0x00 */
+	uint32_t	hw_uartdbg_ecr;
+
+	uint32_t	reserved1[4];
+
+	uint32_t	hw_uartdbg_fr;
+
+	uint32_t	reserved2;
+
+	uint32_t	hw_uartdbg_ilpr;	/* 0x20 */
+	uint32_t	hw_uartdbg_ibrd;
+	uint32_t	hw_uartdbg_fbrd;
+	uint32_t	hw_uartdbg_lcr_h;
+	uint32_t	hw_uartdbg_cr;		/* 0x30 */
+	uint32_t	hw_uartdbg_ifls;
+	uint32_t	hw_uartdbg_imsc;
+	uint32_t	hw_uartdbg_ris;
+	uint32_t	hw_uartdbg_mis;		/* 0x40 */
+	uint32_t	hw_uartdbg_icr;
+	uint32_t	hw_uartdbg_dmacr;
+};
+
+#define	UARTDBG_DR_OE				(1 << 11)
+#define	UARTDBG_DR_BE				(1 << 10)
+#define	UARTDBG_DR_PE				(1 << 9)
+#define	UARTDBG_DR_FE				(1 << 8)
+#define	UARTDBG_DR_DATA_MASK			0xff
+#define	UARTDBG_DR_DATA_OFFSET			0
+
+#define	UARTDBG_RSR_ECR_EC_MASK			(0xf << 4)
+#define	UARTDBG_RSR_ECR_EC_OFFSET		4
+#define	UARTDBG_RSR_ECR_OE			(1 << 3)
+#define	UARTDBG_RSR_ECR_BE			(1 << 2)
+#define	UARTDBG_RSR_ECR_PE			(1 << 1)
+#define	UARTDBG_RSR_ECR_FE			(1 << 0)
+
+#define	UARTDBG_FR_RI				(1 << 8)
+#define	UARTDBG_FR_TXFE				(1 << 7)
+#define	UARTDBG_FR_RXFF				(1 << 6)
+#define	UARTDBG_FR_TXFF				(1 << 5)
+#define	UARTDBG_FR_RXFE				(1 << 4)
+#define	UARTDBG_FR_BUSY				(1 << 3)
+#define	UARTDBG_FR_DCD				(1 << 2)
+#define	UARTDBG_FR_DSR				(1 << 1)
+#define	UARTDBG_FR_CTS				(1 << 0)
+
+#define	UARTDBG_ILPR_ILPDVSR_MASK		0xff
+#define	UARTDBG_ILPR_ILPDVSR_OFFSET		0
+
+#define	UARTDBG_IBRD_BAUD_DIVINT_MASK		0xffff
+#define	UARTDBG_IBRD_BAUD_DIVINT_OFFSET		0
+
+#define	UARTDBG_FBRD_BAUD_DIVFRAC_MASK		0x3f
+#define	UARTDBG_FBRD_BAUD_DIVFRAC_OFFSET	0
+
+#define	UARTDBG_LCR_H_SPS			(1 << 7)
+#define	UARTDBG_LCR_H_WLEN_MASK			(0x3 << 5)
+#define	UARTDBG_LCR_H_WLEN_OFFSET		5
+#define	UARTDBG_LCR_H_FEN			(1 << 4)
+#define	UARTDBG_LCR_H_STP2			(1 << 3)
+#define	UARTDBG_LCR_H_EPS			(1 << 2)
+#define	UARTDBG_LCR_H_PEN			(1 << 1)
+#define	UARTDBG_LCR_H_BRK			(1 << 0)
+
+
+#define	UARTDBG_CR_CTSEN			(1 << 15)
+#define	UARTDBG_CR_RTSEN			(1 << 14)
+#define	UARTDBG_CR_OUT2				(1 << 13)
+#define	UARTDBG_CR_OUT1				(1 << 12)
+#define	UARTDBG_CR_RTS				(1 << 11)
+#define	UARTDBG_CR_DTR				(1 << 10)
+#define	UARTDBG_CR_RXE				(1 << 9)
+#define	UARTDBG_CR_TXE				(1 << 8)
+#define	UARTDBG_CR_LBE				(1 << 7)
+#define	UARTDBG_CR_RESERVED_MASK		(0xf << 3)
+#define	UARTDBG_CR_RESERVED_OFFSET		3
+#define	UARTDBG_CR_SIRLP			(1 << 2)
+#define	UARTDBG_CR_SIREN			(1 << 1)
+#define	UARTDBG_CR_UARTEN			(1 << 0)
+
+#define	UARTDBG_IFLS_RXIFLSEL_MASK		(0x7 << 3)
+#define	UARTDBG_IFLS_RXIFLSEL_OFFSET		3
+#define	UARTDBG_IFLS_RXIFLSEL_ONE_EIGHT		(0x0 << 3)
+#define	UARTDBG_IFLS_RXIFLSEL_ONE_QUARTER	(0x1 << 3)
+#define	UARTDBG_IFLS_RXIFLSEL_ONE_HALF		(0x2 << 3)
+#define	UARTDBG_IFLS_RXIFLSEL_THREE_QUARTERS	(0x3 << 3)
+#define	UARTDBG_IFLS_RXIFLSEL_SEVEN_EIGHTHS	(0x4 << 3)
+#define	UARTDBG_IFLS_RXIFLSEL_INVALID5		(0x5 << 3)
+#define	UARTDBG_IFLS_RXIFLSEL_INVALID6		(0x6 << 3)
+#define	UARTDBG_IFLS_RXIFLSEL_INVALID7		(0x7 << 3)
+#define	UARTDBG_IFLS_TXIFLSEL_MASK		0x7
+#define	UARTDBG_IFLS_TXIFLSEL_OFFSET		0
+#define	UARTDBG_IFLS_TXIFLSEL_ONE_EIGHT		0x0
+#define	UARTDBG_IFLS_TXIFLSEL_ONE_QUARTER	0x1
+#define	UARTDBG_IFLS_TXIFLSEL_ONE_HALF		0x2
+#define	UARTDBG_IFLS_TXIFLSEL_THREE_QUARTERS	0x3
+#define	UARTDBG_IFLS_TXIFLSEL_SEVEN_EIGHTHS	0x4
+#define	UARTDBG_IFLS_TXIFLSEL_INVALID5		0x5
+#define	UARTDBG_IFLS_TXIFLSEL_INVALID6		0x6
+#define	UARTDBG_IFLS_TXIFLSEL_INVALID7		0x7
+
+#define	UARTDBG_IMSC_OEIM			(1 << 10)
+#define	UARTDBG_IMSC_BEIM			(1 << 9)
+#define	UARTDBG_IMSC_PEIM			(1 << 8)
+#define	UARTDBG_IMSC_FEIM			(1 << 7)
+#define	UARTDBG_IMSC_RTIM			(1 << 6)
+#define	UARTDBG_IMSC_TXIM			(1 << 5)
+#define	UARTDBG_IMSC_RXIM			(1 << 4)
+#define	UARTDBG_IMSC_DSRMIM			(1 << 3)
+#define	UARTDBG_IMSC_DCDMIM			(1 << 2)
+#define	UARTDBG_IMSC_CTSMIM			(1 << 1)
+#define	UARTDBG_IMSC_RIMIM			(1 << 0)
+
+#define	UARTDBG_RIS_OERIS			(1 << 10)
+#define	UARTDBG_RIS_BERIS			(1 << 9)
+#define	UARTDBG_RIS_PERIS			(1 << 8)
+#define	UARTDBG_RIS_FERIS			(1 << 7)
+#define	UARTDBG_RIS_RTRIS			(1 << 6)
+#define	UARTDBG_RIS_TXRIS			(1 << 5)
+#define	UARTDBG_RIS_RXRIS			(1 << 4)
+#define	UARTDBG_RIS_DSRRMIS			(1 << 3)
+#define	UARTDBG_RIS_DCDRMIS			(1 << 2)
+#define	UARTDBG_RIS_CTSRMIS			(1 << 1)
+#define	UARTDBG_RIS_RIRMIS			(1 << 0)
+
+#define	UARTDBG_MIS_OEMIS			(1 << 10)
+#define	UARTDBG_MIS_BEMIS			(1 << 9)
+#define	UARTDBG_MIS_PEMIS			(1 << 8)
+#define	UARTDBG_MIS_FEMIS			(1 << 7)
+#define	UARTDBG_MIS_RTMIS			(1 << 6)
+#define	UARTDBG_MIS_TXMIS			(1 << 5)
+#define	UARTDBG_MIS_RXMIS			(1 << 4)
+#define	UARTDBG_MIS_DSRMMIS			(1 << 3)
+#define	UARTDBG_MIS_DCDMMIS			(1 << 2)
+#define	UARTDBG_MIS_CTSMMIS			(1 << 1)
+#define	UARTDBG_MIS_RIMMIS			(1 << 0)
+
+#define	UARTDBG_ICR_OEIC			(1 << 10)
+#define	UARTDBG_ICR_BEIC			(1 << 9)
+#define	UARTDBG_ICR_PEIC			(1 << 8)
+#define	UARTDBG_ICR_FEIC			(1 << 7)
+#define	UARTDBG_ICR_RTIC			(1 << 6)
+#define	UARTDBG_ICR_TXIC			(1 << 5)
+#define	UARTDBG_ICR_RXIC			(1 << 4)
+#define	UARTDBG_ICR_DSRMIC			(1 << 3)
+#define	UARTDBG_ICR_DCDMIC			(1 << 2)
+#define	UARTDBG_ICR_CTSMIC			(1 << 1)
+#define	UARTDBG_ICR_RIMIC			(1 << 0)
+
+#define	UARTDBG_DMACR_DMAONERR			(1 << 2)
+#define	UARTDBG_DMACR_TXDMAE			(1 << 1)
+#define	UARTDBG_DMACR_RXDMAE			(1 << 0)
+
+#endif /* __REGS_UARTDBG_H__ */
-- 
1.7.5.4



More information about the U-Boot mailing list