patch-mxc-add-ARCH_MX1

Adds MX1 architecture to platform MXC. It will supersede mach-imx
and let it die.

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

9 files changed, 1050 insertions, 0 deletions

diff --git a/arch/arm/mach-mx1/Kconfig b/arch/arm/mach-mx1/Kconfig
new file mode 100644
index 00000000000..2b59fc74784
--- /dev/null
+++ b/arch/arm/mach-mx1/Kconfig
@@ -0,0 +1,14 @@
+if ARCH_MX1
+
+comment "MX1 Platforms"
+
+config MACH_MXLADS
+	bool
+
+config ARCH_MX1ADS
+	bool "MX1ADS platform"
+	select MACH_MXLADS
+	help
+	  Say Y here if you are using Motorola MX1ADS/MXLADS boards
+
+endif
diff --git a/arch/arm/mach-mx1/Makefile b/arch/arm/mach-mx1/Makefile
new file mode 100644
index 00000000000..b969719011f
--- /dev/null
+++ b/arch/arm/mach-mx1/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the linux kernel.
+#
+
+# Object file lists.
+
+obj-y			+= generic.o clock.o devices.o
+
+# Specific board support
+obj-$(CONFIG_ARCH_MX1ADS) += mx1ads.o
diff --git a/arch/arm/mach-mx1/Makefile.boot b/arch/arm/mach-mx1/Makefile.boot
new file mode 100644
index 00000000000..8ed1492288a
--- /dev/null
+++ b/arch/arm/mach-mx1/Makefile.boot
@@ -0,0 +1,4 @@
+   zreladdr-y	:= 0x08008000
+params_phys-y	:= 0x08000100
+initrd_phys-y	:= 0x08800000
+
diff --git a/arch/arm/mach-mx1/clock.c b/arch/arm/mach-mx1/clock.c
new file mode 100644
index 00000000000..4bcd1ece55f
--- /dev/null
+++ b/arch/arm/mach-mx1/clock.c
@@ -0,0 +1,656 @@
+/*
+ *  Copyright (C) 2008 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
+ *
+ * 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 <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/math64.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <mach/clock.h>
+#include <mach/hardware.h>
+#include "crm_regs.h"
+
+static int _clk_enable(struct clk *clk)
+{
+	unsigned int reg;
+
+	reg = __raw_readl(clk->enable_reg);
+	reg |= 1 << clk->enable_shift;
+	__raw_writel(reg, clk->enable_reg);
+
+	return 0;
+}
+
+static void _clk_disable(struct clk *clk)
+{
+	unsigned int reg;
+
+	reg = __raw_readl(clk->enable_reg);
+	reg &= ~(1 << clk->enable_shift);
+	__raw_writel(reg, clk->enable_reg);
+}
+
+static int _clk_can_use_parent(const struct clk *clk_arr[], unsigned int size,
+			       struct clk *parent)
+{
+	int i;
+
+	for (i = 0; i < size; i++)
+		if (parent == clk_arr[i])
+			return i;
+
+	return -EINVAL;
+}
+
+static unsigned long
+_clk_simple_round_rate(struct clk *clk, unsigned long rate, unsigned int limit)
+{
+	int div;
+	unsigned long parent_rate;
+
+	parent_rate = clk_get_rate(clk->parent);
+
+	div = parent_rate / rate;
+	if (parent_rate % rate)
+		div++;
+
+	if (div > limit)
+		div = limit;
+
+	return parent_rate / div;
+}
+
+static unsigned long _clk_parent_round_rate(struct clk *clk, unsigned long rate)
+{
+	return clk->parent->round_rate(clk->parent, rate);
+}
+
+static int _clk_parent_set_rate(struct clk *clk, unsigned long rate)
+{
+	return clk->parent->set_rate(clk->parent, rate);
+}
+
+/*
+ *  get the system pll clock in Hz
+ *
+ *                  mfi + mfn / (mfd +1)
+ *  f = 2 * f_ref * --------------------
+ *                        pd + 1
+ */
+static unsigned long mx1_decode_pll(unsigned int pll, u32 f_ref)
+{
+	unsigned long long ll;
+	unsigned long quot;
+
+	u32 mfi = (pll >> 10) & 0xf;
+	u32 mfn = pll & 0x3ff;
+	u32 mfd = (pll >> 16) & 0x3ff;
+	u32 pd =  (pll >> 26) & 0xf;
+
+	mfi = mfi <= 5 ? 5 : mfi;
+
+	ll = 2 * (unsigned long long)f_ref *
+		((mfi << 16) + (mfn << 16) / (mfd + 1));
+	quot = (pd + 1) * (1 << 16);
+	ll += quot / 2;
+	do_div(ll, quot);
+	return (unsigned long)ll;
+}
+
+static unsigned long clk16m_get_rate(struct clk *clk)
+{
+	return 16000000;
+}
+
+static struct clk clk16m = {
+	.name = "CLK16M",
+	.get_rate = clk16m_get_rate,
+	.enable = _clk_enable,
+	.enable_reg = CCM_CSCR,
+	.enable_shift = CCM_CSCR_OSC_EN_SHIFT,
+	.disable = _clk_disable,
+};
+
+/* in Hz */
+static unsigned long clk32_rate;
+
+static unsigned long clk32_get_rate(struct clk *clk)
+{
+	return clk32_rate;
+}
+
+static struct clk clk32 = {
+	.name = "CLK32",
+	.get_rate = clk32_get_rate,
+};
+
+static unsigned long clk32_premult_get_rate(struct clk *clk)
+{
+	return clk_get_rate(clk->parent) * 512;
+}
+
+static struct clk clk32_premult = {
+	.name = "CLK32_premultiplier",
+	.parent = &clk32,
+	.get_rate = clk32_premult_get_rate,
+};
+
+static const struct clk *prem_clk_clocks[] = {
+	&clk32_premult,
+	&clk16m,
+};
+
+static int prem_clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	int i;
+	unsigned int reg = __raw_readl(CCM_CSCR);
+
+	i = _clk_can_use_parent(prem_clk_clocks, ARRAY_SIZE(prem_clk_clocks),
+				parent);
+
+	switch (i) {
+	case 0:
+		reg &= ~CCM_CSCR_SYSTEM_SEL;
+		break;
+	case 1:
+		reg |= CCM_CSCR_SYSTEM_SEL;
+		break;
+	default:
+		return i;
+	}
+
+	__raw_writel(reg, CCM_CSCR);
+
+	return 0;
+}
+
+static struct clk prem_clk = {
+	.name = "prem_clk",
+	.set_parent = prem_clk_set_parent,
+};
+
+static unsigned long system_clk_get_rate(struct clk *clk)
+{
+	return mx1_decode_pll(__raw_readl(CCM_SPCTL0),
+			      clk_get_rate(clk->parent));
+}
+
+static struct clk system_clk = {
+	.name = "system_clk",
+	.parent = &prem_clk,
+	.get_rate = system_clk_get_rate,
+};
+
+static unsigned long mcu_clk_get_rate(struct clk *clk)
+{
+	return mx1_decode_pll(__raw_readl(CCM_MPCTL0),
+			      clk_get_rate(clk->parent));
+}
+
+static struct clk mcu_clk = {
+	.name = "mcu_clk",
+	.parent = &clk32_premult,
+	.get_rate = mcu_clk_get_rate,
+};
+
+static unsigned long fclk_get_rate(struct clk *clk)
+{
+	unsigned long fclk = clk_get_rate(clk->parent);
+
+	if (__raw_readl(CCM_CSCR) & CCM_CSCR_PRESC)
+		fclk /= 2;
+
+	return fclk;
+}
+
+static struct clk fclk = {
+	.name = "fclk",
+	.parent = &mcu_clk,
+	.get_rate = fclk_get_rate,
+};
+
+/*
+ *  get hclk ( SDRAM, CSI, Memory Stick, I2C, DMA )
+ */
+static unsigned long hclk_get_rate(struct clk *clk)
+{
+	return clk_get_rate(clk->parent) / (((__raw_readl(CCM_CSCR) &
+			CCM_CSCR_BCLK_MASK) >> CCM_CSCR_BCLK_OFFSET) + 1);
+}
+
+static unsigned long hclk_round_rate(struct clk *clk, unsigned long rate)
+{
+	return _clk_simple_round_rate(clk, rate, 16);
+}
+
+static int hclk_set_rate(struct clk *clk, unsigned long rate)
+{
+	unsigned int div;
+	unsigned int reg;
+	unsigned long parent_rate;
+
+	parent_rate = clk_get_rate(clk->parent);
+
+	div = parent_rate / rate;
+
+	if (div > 16 || div < 1 || ((parent_rate / div) != rate))
+		return -EINVAL;
+
+	div--;
+
+	reg = __raw_readl(CCM_CSCR);
+	reg &= ~CCM_CSCR_BCLK_MASK;
+	reg |= div << CCM_CSCR_BCLK_OFFSET;
+	__raw_writel(reg, CCM_CSCR);
+
+	return 0;
+}
+
+static struct clk hclk = {
+	.name = "hclk",
+	.parent = &system_clk,
+	.get_rate = hclk_get_rate,
+	.round_rate = hclk_round_rate,
+	.set_rate = hclk_set_rate,
+};
+
+static unsigned long clk48m_get_rate(struct clk *clk)
+{
+	return clk_get_rate(clk->parent) / (((__raw_readl(CCM_CSCR) &
+			CCM_CSCR_USB_MASK) >> CCM_CSCR_USB_OFFSET) + 1);
+}
+
+static unsigned long clk48m_round_rate(struct clk *clk, unsigned long rate)
+{
+	return _clk_simple_round_rate(clk, rate, 8);
+}
+
+static int clk48m_set_rate(struct clk *clk, unsigned long rate)
+{
+	unsigned int div;
+	unsigned int reg;
+	unsigned long parent_rate;
+
+	parent_rate = clk_get_rate(clk->parent);
+
+	div = parent_rate / rate;
+
+	if (div > 8 || div < 1 || ((parent_rate / div) != rate))
+		return -EINVAL;
+
+	div--;
+
+	reg = __raw_readl(CCM_CSCR);
+	reg &= ~CCM_CSCR_USB_MASK;
+	reg |= div << CCM_CSCR_USB_OFFSET;
+	__raw_writel(reg, CCM_CSCR);
+
+	return 0;
+}
+
+static struct clk clk48m = {
+	.name = "CLK48M",
+	.parent = &system_clk,
+	.get_rate = clk48m_get_rate,
+	.round_rate = clk48m_round_rate,
+	.set_rate = clk48m_set_rate,
+};
+
+/*
+ *  get peripheral clock 1 ( UART[12], Timer[12], PWM )
+ */
+static unsigned long perclk1_get_rate(struct clk *clk)
+{
+	return clk_get_rate(clk->parent) / (((__raw_readl(CCM_PCDR) &
+			CCM_PCDR_PCLK1_MASK) >> CCM_PCDR_PCLK1_OFFSET) + 1);
+}
+
+static unsigned long perclk1_round_rate(struct clk *clk, unsigned long rate)
+{
+	return _clk_simple_round_rate(clk, rate, 16);
+}
+
+static int perclk1_set_rate(struct clk *clk, unsigned long rate)
+{
+	unsigned int div;
+	unsigned int reg;
+	unsigned long parent_rate;
+
+	parent_rate = clk_get_rate(clk->parent);
+
+	div = parent_rate / rate;
+
+	if (div > 16 || div < 1 || ((parent_rate / div) != rate))
+		return -EINVAL;
+
+	div--;
+
+	reg = __raw_readl(CCM_PCDR);
+	reg &= ~CCM_PCDR_PCLK1_MASK;
+	reg |= div << CCM_PCDR_PCLK1_OFFSET;
+	__raw_writel(reg, CCM_PCDR);
+
+	return 0;
+}
+
+/*
+ *  get peripheral clock 2 ( LCD, SD, SPI[12] )
+ */
+static unsigned long perclk2_get_rate(struct clk *clk)
+{
+	return clk_get_rate(clk->parent) / (((__raw_readl(CCM_PCDR) &
+			CCM_PCDR_PCLK2_MASK) >> CCM_PCDR_PCLK2_OFFSET) + 1);
+}
+
+static unsigned long perclk2_round_rate(struct clk *clk, unsigned long rate)
+{
+	return _clk_simple_round_rate(clk, rate, 16);
+}
+
+static int perclk2_set_rate(struct clk *clk, unsigned long rate)
+{
+	unsigned int div;
+	unsigned int reg;
+	unsigned long parent_rate;
+
+	parent_rate = clk_get_rate(clk->parent);
+
+	div = parent_rate / rate;
+
+	if (div > 16 || div < 1 || ((parent_rate / div) != rate))
+		return -EINVAL;
+
+	div--;
+
+	reg = __raw_readl(CCM_PCDR);
+	reg &= ~CCM_PCDR_PCLK2_MASK;
+	reg |= div << CCM_PCDR_PCLK2_OFFSET;
+	__raw_writel(reg, CCM_PCDR);
+
+	return 0;
+}
+
+/*
+ *  get peripheral clock 3 ( SSI )
+ */
+static unsigned long perclk3_get_rate(struct clk *clk)
+{
+	return clk_get_rate(clk->parent) / (((__raw_readl(CCM_PCDR) &
+			CCM_PCDR_PCLK3_MASK) >> CCM_PCDR_PCLK3_OFFSET) + 1);
+}
+
+static unsigned long perclk3_round_rate(struct clk *clk, unsigned long rate)
+{
+	return _clk_simple_round_rate(clk, rate, 128);
+}
+
+static int perclk3_set_rate(struct clk *clk, unsigned long rate)
+{
+	unsigned int div;
+	unsigned int reg;
+	unsigned long parent_rate;
+
+	parent_rate = clk_get_rate(clk->parent);
+
+	div = parent_rate / rate;
+
+	if (div > 128 || div < 1 || ((parent_rate / div) != rate))
+		return -EINVAL;
+
+	div--;
+
+	reg = __raw_readl(CCM_PCDR);
+	reg &= ~CCM_PCDR_PCLK3_MASK;
+	reg |= div << CCM_PCDR_PCLK3_OFFSET;
+	__raw_writel(reg, CCM_PCDR);
+
+	return 0;
+}
+
+static struct clk perclk[] = {
+	{
+		.name = "perclk",
+		.id = 0,
+		.parent = &system_clk,
+		.get_rate = perclk1_get_rate,
+		.round_rate = perclk1_round_rate,
+		.set_rate = perclk1_set_rate,
+	}, {
+		.name = "perclk",
+		.id = 1,
+		.parent = &system_clk,
+		.get_rate = perclk2_get_rate,
+		.round_rate = perclk2_round_rate,
+		.set_rate = perclk2_set_rate,
+	}, {
+		.name = "perclk",
+		.id = 2,
+		.parent = &system_clk,
+		.get_rate = perclk3_get_rate,
+		.round_rate = perclk3_round_rate,
+		.set_rate = perclk3_set_rate,
+	}
+};
+
+static const struct clk *clko_clocks[] = {
+	&perclk[0],
+	&hclk,
+	&clk48m,
+	&clk16m,
+	&prem_clk,
+	&fclk,
+};
+
+static int clko_set_parent(struct clk *clk, struct clk *parent)
+{
+	int i;
+	unsigned int reg;
+
+	i = _clk_can_use_parent(clko_clocks, ARRAY_SIZE(clko_clocks), parent);
+	if (i < 0)
+		return i;
+
+	reg = __raw_readl(CCM_CSCR) & ~CCM_CSCR_CLKO_MASK;
+	reg |= i << CCM_CSCR_CLKO_OFFSET;
+	__raw_writel(reg, CCM_CSCR);
+
+	if (clko_clocks[i]->set_rate && clko_clocks[i]->round_rate) {
+		clk->set_rate = _clk_parent_set_rate;
+		clk->round_rate = _clk_parent_round_rate;
+	} else {
+		clk->set_rate = NULL;
+		clk->round_rate = NULL;
+	}
+
+	return 0;
+}
+
+static struct clk clko_clk = {
+	.name = "clko_clk",
+	.set_parent = clko_set_parent,
+};
+
+static struct clk dma_clk = {
+	.name = "dma_clk",
+	.parent = &hclk,
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+	.enable = _clk_enable,
+	.enable_reg = SCM_GCCR,
+	.enable_shift = SCM_GCCR_DMA_CLK_EN_OFFSET,
+	.disable = _clk_disable,
+};
+
+static struct clk csi_clk = {
+	.name = "csi_clk",
+	.parent = &hclk,
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+	.enable = _clk_enable,
+	.enable_reg = SCM_GCCR,
+	.enable_shift = SCM_GCCR_CSI_CLK_EN_OFFSET,
+	.disable = _clk_disable,
+};
+
+static struct clk mma_clk = {
+	.name = "mma_clk",
+	.parent = &hclk,
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+	.enable = _clk_enable,
+	.enable_reg = SCM_GCCR,
+	.enable_shift = SCM_GCCR_MMA_CLK_EN_OFFSET,
+	.disable = _clk_disable,
+};
+
+static struct clk usbd_clk = {
+	.name = "usbd_clk",
+	.parent = &clk48m,
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+	.enable = _clk_enable,
+	.enable_reg = SCM_GCCR,
+	.enable_shift = SCM_GCCR_USBD_CLK_EN_OFFSET,
+	.disable = _clk_disable,
+};
+
+static struct clk gpt_clk = {
+	.name = "gpt_clk",
+	.parent = &perclk[0],
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+};
+
+static struct clk uart_clk = {
+	.name = "uart_clk",
+	.parent = &perclk[0],
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+};
+
+static struct clk i2c_clk = {
+	.name = "i2c_clk",
+	.parent = &hclk,
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+};
+
+static struct clk spi_clk = {
+	.name = "spi_clk",
+	.parent = &perclk[1],
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+};
+
+static struct clk sdhc_clk = {
+	.name = "sdhc_clk",
+	.parent = &perclk[1],
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+};
+
+static struct clk lcdc_clk = {
+	.name = "lcdc_clk",
+	.parent = &perclk[1],
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+};
+
+static struct clk mshc_clk = {
+	.name = "mshc_clk",
+	.parent = &hclk,
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+};
+
+static struct clk ssi_clk = {
+	.name = "ssi_clk",
+	.parent = &perclk[2],
+	.round_rate = _clk_parent_round_rate,
+	.set_rate = _clk_parent_set_rate,
+};
+
+static struct clk rtc_clk = {
+	.name = "rtc_clk",
+	.parent = &clk32,
+};
+
+static struct clk *mxc_clks[] = {
+	&clk16m,
+	&clk32,
+	&clk32_premult,
+	&prem_clk,
+	&system_clk,
+	&mcu_clk,
+	&fclk,
+	&hclk,
+	&clk48m,
+	&perclk[0],
+	&perclk[1],
+	&perclk[2],
+	&clko_clk,
+	&dma_clk,
+	&csi_clk,
+	&mma_clk,
+	&usbd_clk,
+	&gpt_clk,
+	&uart_clk,
+	&i2c_clk,
+	&spi_clk,
+	&sdhc_clk,
+	&lcdc_clk,
+	&mshc_clk,
+	&ssi_clk,
+	&rtc_clk,
+};
+
+int __init mxc_clocks_init(unsigned long fref)
+{
+	struct clk **clkp;
+	unsigned int reg;
+
+	/* disable clocks we are able to */
+	__raw_writel(0, SCM_GCCR);
+
+	clk32_rate = fref;
+	reg = __raw_readl(CCM_CSCR);
+
+	/* detect clock reference for system PLL */
+	if (reg & CCM_CSCR_SYSTEM_SEL) {
+		prem_clk.parent = &clk16m;
+	} else {
+		/* ensure that oscillator is disabled */
+		reg &= ~(1 << CCM_CSCR_OSC_EN_SHIFT);
+		__raw_writel(reg, CCM_CSCR);
+		prem_clk.parent = &clk32_premult;
+	}
+
+	/* detect reference for CLKO */
+	reg = (reg & CCM_CSCR_CLKO_MASK) >> CCM_CSCR_CLKO_OFFSET;
+	clko_clk.parent = (struct clk *)clko_clocks[reg];
+
+	for (clkp = mxc_clks; clkp < mxc_clks + ARRAY_SIZE(mxc_clks); clkp++)
+		clk_register(*clkp);
+
+	clk_enable(&hclk);
+	clk_enable(&fclk);
+
+	return 0;
+}
diff --git a/arch/arm/mach-mx1/crm_regs.h b/arch/arm/mach-mx1/crm_regs.h
new file mode 100644
index 00000000000..22e866ff0c0
--- /dev/null
+++ b/arch/arm/mach-mx1/crm_regs.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright (c) 2008 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * This file may be distributed under the terms of the GNU General
+ * Public License, version 2.
+ */
+
+#ifndef __ARCH_ARM_MACH_MX1_CRM_REGS_H__
+#define __ARCH_ARM_MACH_MX1_CRM_REGS_H__
+
+#define CCM_BASE	IO_ADDRESS(CCM_BASE_ADDR)
+#define SCM_BASE	IO_ADDRESS(SCM_BASE_ADDR)
+
+/* CCM register addresses */
+#define CCM_CSCR	(CCM_BASE + 0x0)
+#define CCM_MPCTL0	(CCM_BASE + 0x4)
+#define CCM_MPCTL1	(CCM_BASE + 0x8)
+#define CCM_SPCTL0	(CCM_BASE + 0xC)
+#define CCM_SPCTL1	(CCM_BASE + 0x10)
+#define CCM_PCDR	(CCM_BASE + 0x20)
+
+#define CCM_CSCR_CLKO_OFFSET	29
+#define CCM_CSCR_CLKO_MASK	(0x7 << 29)
+#define CCM_CSCR_USB_OFFSET	26
+#define CCM_CSCR_USB_MASK	(0x7 << 26)
+#define CCM_CSCR_SPLL_RESTART	(1 << 22)
+#define CCM_CSCR_MPLL_RESTART	(1 << 21)
+#define CCM_CSCR_OSC_EN_SHIFT	17
+#define CCM_CSCR_SYSTEM_SEL	(1 << 16)
+#define CCM_CSCR_BCLK_OFFSET	10
+#define CCM_CSCR_BCLK_MASK	(0xF << 10)
+#define CCM_CSCR_PRESC		(1 << 15)
+#define CCM_CSCR_SPEN		(1 << 1)
+#define CCM_CSCR_MPEN		(1 << 0)
+
+#define CCM_PCDR_PCLK3_OFFSET	16
+#define CCM_PCDR_PCLK3_MASK	(0x7F << 16)
+#define CCM_PCDR_PCLK2_OFFSET	4
+#define CCM_PCDR_PCLK2_MASK	(0xF << 4)
+#define CCM_PCDR_PCLK1_OFFSET	0
+#define CCM_PCDR_PCLK1_MASK	0xF
+
+/* SCM register addresses */
+#define SCM_SIDR	(SCM_BASE + 0x0)
+#define SCM_FMCR	(SCM_BASE + 0x4)
+#define SCM_GPCR	(SCM_BASE + 0x8)
+#define SCM_GCCR	(SCM_BASE + 0xC)
+
+#define SCM_GCCR_DMA_CLK_EN_OFFSET	3
+#define SCM_GCCR_CSI_CLK_EN_OFFSET	2
+#define SCM_GCCR_MMA_CLK_EN_OFFSET	1
+#define SCM_GCCR_USBD_CLK_EN_OFFSET	0
+
+#endif /* __ARCH_ARM_MACH_MX2_CRM_REGS_H__ */
diff --git a/arch/arm/mach-mx1/devices.c b/arch/arm/mach-mx1/devices.c
new file mode 100644
index 00000000000..aa7b0b08dfc
--- /dev/null
+++ b/arch/arm/mach-mx1/devices.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Sascha Hauer, kernel@pengutronix.de
+ * Copyright (c) 2008 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <mach/hardware.h>
+
+static struct resource imx_uart1_resources[] = {
+	[0] = {
+		.start	= UART1_BASE_ADDR,
+		.end	= UART1_BASE_ADDR + 0xD0,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= UART1_MINT_RX,
+		.end	= UART1_MINT_RX,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= UART1_MINT_TX,
+		.end	= UART1_MINT_TX,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= UART1_MINT_RTS,
+		.end	= UART1_MINT_RTS,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device imx_uart1_device = {
+	.name		= "imx-uart",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(imx_uart1_resources),
+	.resource	= imx_uart1_resources,
+};
+
+static struct resource imx_uart2_resources[] = {
+	[0] = {
+		.start	= UART2_BASE_ADDR,
+		.end	= UART2_BASE_ADDR + 0xD0,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= UART2_MINT_RX,
+		.end	= UART2_MINT_RX,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= UART2_MINT_TX,
+		.end	= UART2_MINT_TX,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= UART2_MINT_RTS,
+		.end	= UART2_MINT_RTS,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device imx_uart2_device = {
+	.name		= "imx-uart",
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(imx_uart2_resources),
+	.resource	= imx_uart2_resources,
+};
+
+/* GPIO port description */
+static struct mxc_gpio_port imx_gpio_ports[] = {
+	[0] = {
+		.chip.label = "gpio-0",
+		.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR),
+		.irq = GPIO_INT_PORTA,
+		.virtual_irq_start = MXC_MAX_INT_LINES
+	},
+	[1] = {
+		.chip.label = "gpio-1",
+		.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x100),
+		.irq = GPIO_INT_PORTB,
+		.virtual_irq_start = MXC_MAX_INT_LINES + 32
+	},
+	[2] = {
+		.chip.label = "gpio-2",
+		.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x200),
+		.irq = GPIO_INT_PORTC,
+		.virtual_irq_start = MXC_MAX_INT_LINES + 64
+	},
+	[3] = {
+		.chip.label = "gpio-3",
+		.base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x300),
+		.irq = GPIO_INT_PORTD,
+		.virtual_irq_start = MXC_MAX_INT_LINES + 96
+	}
+};
+
+int __init mxc_register_gpios(void)
+{
+	return mxc_gpio_init(imx_gpio_ports, ARRAY_SIZE(imx_gpio_ports));
+}
diff --git a/arch/arm/mach-mx1/devices.h b/arch/arm/mach-mx1/devices.h
new file mode 100644
index 00000000000..408485b0acf
--- /dev/null
+++ b/arch/arm/mach-mx1/devices.h
@@ -0,0 +1,2 @@
+extern struct platform_device imx_uart1_device;
+extern struct platform_device imx_uart2_device;
diff --git a/arch/arm/mach-mx1/generic.c b/arch/arm/mach-mx1/generic.c
new file mode 100644
index 00000000000..0dec6f300ff
--- /dev/null
+++ b/arch/arm/mach-mx1/generic.c
@@ -0,0 +1,43 @@
+/*
+ *  author: Sascha Hauer
+ *  Created: april 20th, 2004
+ *  Copyright: Synertronixx GmbH
+ *
+ *  Common code for i.MX machines
+ *
+ * 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 <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+
+static struct map_desc imx_io_desc[] __initdata = {
+	{
+		.virtual	= IMX_IO_BASE,
+		.pfn		= __phys_to_pfn(IMX_IO_PHYS),
+		.length		= IMX_IO_SIZE,
+		.type		= MT_DEVICE
+	}
+};
+
+void __init mxc_map_io(void)
+{
+	iotable_init(imx_io_desc, ARRAY_SIZE(imx_io_desc));
+}
diff --git a/arch/arm/mach-mx1/mx1ads.c b/arch/arm/mach-mx1/mx1ads.c
new file mode 100644
index 00000000000..2e4b185fe4a
--- /dev/null
+++ b/arch/arm/mach-mx1/mx1ads.c
@@ -0,0 +1,148 @@
+/*
+ * arch/arm/mach-imx/mx1ads.c
+ *
+ * Initially based on:
+ *	linux-2.6.7-imx/arch/arm/mach-imx/scb9328.c
+ *	Copyright (c) 2004 Sascha Hauer <sascha@saschahauer.de>
+ *
+ * 2004 (c) MontaVista Software, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/imx-uart.h>
+#include <mach/iomux-mx1-mx2.h>
+#include "devices.h"
+
+/*
+ * UARTs platform data
+ */
+static int mxc_uart1_pins[] = {
+	PC9_PF_UART1_CTS,
+	PC10_PF_UART1_RTS,
+	PC11_PF_UART1_TXD,
+	PC12_PF_UART1_RXD,
+};
+
+static int uart1_mxc_init(struct platform_device *pdev)
+{
+	return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
+			ARRAY_SIZE(mxc_uart1_pins), "UART1");
+}
+
+static int uart1_mxc_exit(struct platform_device *pdev)
+{
+	mxc_gpio_release_multiple_pins(mxc_uart1_pins,
+			ARRAY_SIZE(mxc_uart1_pins));
+	return 0;
+}
+
+static int mxc_uart2_pins[] = {
+	PB28_PF_UART2_CTS,
+	PB29_PF_UART2_RTS,
+	PB30_PF_UART2_TXD,
+	PB31_PF_UART2_RXD,
+};
+
+static int uart2_mxc_init(struct platform_device *pdev)
+{
+	return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
+			ARRAY_SIZE(mxc_uart2_pins), "UART2");
+}
+
+static int uart2_mxc_exit(struct platform_device *pdev)
+{
+	mxc_gpio_release_multiple_pins(mxc_uart2_pins,
+			ARRAY_SIZE(mxc_uart2_pins));
+	return 0;
+}
+
+static struct imxuart_platform_data uart_pdata[] = {
+	{
+		.init = uart1_mxc_init,
+		.exit = uart1_mxc_exit,
+		.flags = IMXUART_HAVE_RTSCTS,
+	}, {
+		.init = uart2_mxc_init,
+		.exit = uart2_mxc_exit,
+		.flags = IMXUART_HAVE_RTSCTS,
+	},
+};
+
+/*
+ * Physmap flash
+ */
+
+static struct physmap_flash_data mx1ads_flash_data = {
+	.width		= 4,		/* bankwidth in bytes */
+};
+
+static struct resource flash_resource = {
+	.start	= IMX_CS0_PHYS,
+	.end	= IMX_CS0_PHYS + SZ_32M - 1,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device = {
+	.name	= "physmap-flash",
+	.id	= 0,
+	.resource = &flash_resource,
+	.num_resources = 1,
+};
+
+/*
+ * Board init
+ */
+static void __init mx1ads_init(void)
+{
+	/* UART */
+	mxc_register_device(&imx_uart1_device, &uart_pdata[0]);
+	mxc_register_device(&imx_uart2_device, &uart_pdata[1]);
+
+	/* Physmap flash */
+	mxc_register_device(&flash_device, &mx1ads_flash_data);
+}
+
+static void __init mx1ads_timer_init(void)
+{
+	mxc_clocks_init(32000);
+	mxc_timer_init("gpt_clk");
+}
+
+struct sys_timer mx1ads_timer = {
+	.init	= mx1ads_timer_init,
+};
+
+MACHINE_START(MX1ADS, "Freescale MX1ADS")
+	/* Maintainer: Sascha Hauer, Pengutronix */
+	.phys_io	= IMX_IO_PHYS,
+	.io_pg_offst	= (IMX_IO_BASE >> 18) & 0xfffc,
+	.boot_params	= PHYS_OFFSET + 0x100,
+	.map_io		= mxc_map_io,
+	.init_irq	= mxc_init_irq,
+	.timer		= &mx1ads_timer,
+	.init_machine	= mx1ads_init,
+MACHINE_END
+
+MACHINE_START(MXLADS, "Freescale MXLADS")
+	.phys_io	= IMX_IO_PHYS,
+	.io_pg_offst	= (IMX_IO_BASE >> 18) & 0xfffc,
+	.boot_params	= PHYS_OFFSET + 0x100,
+	.map_io		= mxc_map_io,
+	.init_irq	= mxc_init_irq,
+	.timer		= &mx1ads_timer,
+	.init_machine	= mx1ads_init,
+MACHINE_END