9 files changed, 1197 insertions, 0 deletions

diff --git a/arch/arm/mach-mx1/Kconfig b/arch/arm/mach-mx1/Kconfig
new file mode 100644
index 000000000000..2b59fc74784f
--- /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 000000000000..b969719011fa
--- /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 000000000000..8ed1492288a2
--- /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 000000000000..4bcd1ece55f5
--- /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 000000000000..22e866ff0c09
--- /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 000000000000..686d8d2dbb24
--- /dev/null
+++ b/arch/arm/mach-mx1/devices.c
@@ -0,0 +1,260 @@
+/*
+ * 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>
+ * Copyright (c) 2008 Darius Augulis <darius.augulis@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_csi_resources[] = {
+        [0] = {
+                .start  = 0x00224000,
+                .end    = 0x00224010,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = CSI_INT,
+                .end    = CSI_INT,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static u64 imx_csi_dmamask = 0xffffffffUL;
+
+struct platform_device imx_csi_device = {
+        .name           = "imx-csi",
+        .id             = 0, /* This is used to put cameras on this interface */
+        .dev            = {
+                .dma_mask = &imx_csi_dmamask,
+                .coherent_dma_mask = 0xffffffff,
+        },
+        .resource       = imx_csi_resources,
+        .num_resources  = ARRAY_SIZE(imx_csi_resources),
+};
+
+static struct resource imx_i2c_resources[] = {
+        [0] = {
+                .start  = 0x00217000,
+                .end    = 0x00217010,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = I2C_INT,
+                .end    = I2C_INT,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device imx_i2c_device = {
+        .name           = "imx-i2c",
+        .id             = 0,
+        .resource       = imx_i2c_resources,
+        .num_resources  = ARRAY_SIZE(imx_i2c_resources),
+};
+
+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,
+};
+
+static struct resource imx_rtc_resources[] = {
+        [0] = {
+                .start  = 0x00204000,
+                .end    = 0x00204024,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = RTC_INT,
+                .end    = RTC_INT,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [2] = {
+                .start  = RTC_SAMINT,
+                .end    = RTC_SAMINT,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device imx_rtc_device = {
+        .name           = "rtc-imx",
+        .id             = 0,
+        .resource       = imx_rtc_resources,
+        .num_resources  = ARRAY_SIZE(imx_rtc_resources),
+};
+
+static struct resource imx_wdt_resources[] = {
+        [0] = {
+                .start  = 0x00201000,
+                .end    = 0x00201008,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = WDT_INT,
+                .end    = WDT_INT,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device imx_wdt_device = {
+        .name           = "imx-wdt",
+        .id             = 0,
+        .resource       = imx_wdt_resources,
+        .num_resources  = ARRAY_SIZE(imx_wdt_resources),
+};
+
+static struct resource imx_usb_resources[] = {
+        [0] = {
+                .start  = 0x00212000,
+                .end    = 0x00212148,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = USBD_INT0,
+                .end    = USBD_INT0,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [2] = {
+                .start  = USBD_INT1,
+                .end    = USBD_INT1,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [3] = {
+                .start  = USBD_INT2,
+                .end    = USBD_INT2,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [4] = {
+                .start  = USBD_INT3,
+                .end    = USBD_INT3,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [5] = {
+                .start  = USBD_INT4,
+                .end    = USBD_INT4,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [6] = {
+                .start  = USBD_INT5,
+                .end    = USBD_INT5,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [7] = {
+                .start  = USBD_INT6,
+                .end    = USBD_INT6,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device imx_usb_device = {
+        .name           = "imx_udc",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(imx_usb_resources),
+        .resource       = imx_usb_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_GPIO_IRQ_START
+        },
+        [1] = {
+                .chip.label = "gpio-1",
+                .base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x100),
+                .irq = GPIO_INT_PORTB,
+                .virtual_irq_start = MXC_GPIO_IRQ_START + 32
+        },
+        [2] = {
+                .chip.label = "gpio-2",
+                .base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x200),
+                .irq = GPIO_INT_PORTC,
+                .virtual_irq_start = MXC_GPIO_IRQ_START + 64
+        },
+        [3] = {
+                .chip.label = "gpio-3",
+                .base = (void __iomem *)IO_ADDRESS(GPIO_BASE_ADDR + 0x300),
+                .irq = GPIO_INT_PORTD,
+                .virtual_irq_start = MXC_GPIO_IRQ_START + 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 000000000000..0da5d7cce3a2
--- /dev/null
+++ b/arch/arm/mach-mx1/devices.h
@@ -0,0 +1,7 @@
+extern struct platform_device imx_csi_device;
+extern struct platform_device imx_i2c_device;
+extern struct platform_device imx_uart1_device;
+extern struct platform_device imx_uart2_device;
+extern struct platform_device imx_rtc_device;
+extern struct platform_device imx_wdt_device;
+extern struct platform_device imx_usb_device;
diff --git a/arch/arm/mach-mx1/generic.c b/arch/arm/mach-mx1/generic.c
new file mode 100644
index 000000000000..0dec6f300ffc
--- /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 000000000000..2e4b185fe4a9
--- /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