2 files changed, 1627 insertions, 0 deletions

diff --git a/arch/arm/mach-mx2/Makefile b/arch/arm/mach-mx2/Makefile
index c9eac3b1e139..74fb9b3eb066 100644
--- a/arch/arm/mach-mx2/Makefile
+++ b/arch/arm/mach-mx2/Makefile
@@ -7,3 +7,4 @@
 obj-y   :=  system.o generic.o devices.o serial.o
 
 obj-$(CONFIG_MACH_MX27) += cpu_imx27.o
+obj-$(CONFIG_MACH_MX27) += clock_imx27.o
diff --git a/arch/arm/mach-mx2/clock_imx27.c b/arch/arm/mach-mx2/clock_imx27.c
new file mode 100644
index 000000000000..0a29ef29c73a
--- /dev/null
+++ b/arch/arm/mach-mx2/clock_imx27.c
@@ -0,0 +1,1626 @@
+/*
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
+ *
+ * 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/clk.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+
+#include <asm/arch/clock.h>
+#include <asm/arch/common.h>
+#include <asm/div64.h>
+#include <asm/mach-types.h>
+
+#include "crm_regs.h"
+
+static struct clk ckil_clk;
+static struct clk mpll_clk;
+static struct clk mpll_main_clk[];
+static struct clk spll_clk;
+
+static int _clk_enable(struct clk *clk)
+{
+        unsigned long 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 long reg;
+
+        reg = __raw_readl(clk->enable_reg);
+        reg &= ~(1 << clk->enable_shift);
+        __raw_writel(reg, clk->enable_reg);
+}
+
+static int _clk_spll_enable(struct clk *clk)
+{
+        unsigned long reg;
+
+        reg = __raw_readl(CCM_CSCR);
+        reg |= CCM_CSCR_SPEN;
+        __raw_writel(reg, CCM_CSCR);
+
+        while ((__raw_readl(CCM_SPCTL1) & CCM_SPCTL1_LF) == 0)
+                ;
+
+        return 0;
+}
+
+static void _clk_spll_disable(struct clk *clk)
+{
+        unsigned long reg;
+
+        reg = __raw_readl(CCM_CSCR);
+        reg &= ~CCM_CSCR_SPEN;
+        __raw_writel(reg, CCM_CSCR);
+}
+
+static void _clk_pccr01_enable(unsigned long mask0, unsigned long mask1)
+{
+        unsigned long reg;
+
+        reg = __raw_readl(CCM_PCCR0);
+        reg |= mask0;
+        __raw_writel(reg, CCM_PCCR0);
+
+        reg = __raw_readl(CCM_PCCR1);
+        reg |= mask1;
+        __raw_writel(reg, CCM_PCCR1);
+
+}
+
+static void _clk_pccr01_disable(unsigned long mask0, unsigned long mask1)
+{
+        unsigned long reg;
+
+        reg = __raw_readl(CCM_PCCR0);
+        reg &= ~mask0;
+        __raw_writel(reg, CCM_PCCR0);
+
+        reg = __raw_readl(CCM_PCCR1);
+        reg &= ~mask1;
+        __raw_writel(reg, CCM_PCCR1);
+}
+
+static void _clk_pccr10_enable(unsigned long mask1, unsigned long mask0)
+{
+        unsigned long reg;
+
+        reg = __raw_readl(CCM_PCCR1);
+        reg |= mask1;
+        __raw_writel(reg, CCM_PCCR1);
+
+        reg = __raw_readl(CCM_PCCR0);
+        reg |= mask0;
+        __raw_writel(reg, CCM_PCCR0);
+}
+
+static void _clk_pccr10_disable(unsigned long mask1, unsigned long mask0)
+{
+        unsigned long reg;
+
+        reg = __raw_readl(CCM_PCCR1);
+        reg &= ~mask1;
+        __raw_writel(reg, CCM_PCCR1);
+
+        reg = __raw_readl(CCM_PCCR0);
+        reg &= ~mask0;
+        __raw_writel(reg, CCM_PCCR0);
+}
+
+static int _clk_dma_enable(struct clk *clk)
+{
+        _clk_pccr01_enable(CCM_PCCR0_DMA_MASK, CCM_PCCR1_HCLK_DMA_MASK);
+
+        return 0;
+}
+
+static void _clk_dma_disable(struct clk *clk)
+{
+        _clk_pccr01_disable(CCM_PCCR0_DMA_MASK, CCM_PCCR1_HCLK_DMA_MASK);
+}
+
+static int _clk_rtic_enable(struct clk *clk)
+{
+        _clk_pccr01_enable(CCM_PCCR0_RTIC_MASK, CCM_PCCR1_HCLK_RTIC_MASK);
+
+        return 0;
+}
+
+static void _clk_rtic_disable(struct clk *clk)
+{
+        _clk_pccr01_disable(CCM_PCCR0_RTIC_MASK, CCM_PCCR1_HCLK_RTIC_MASK);
+}
+
+static int _clk_emma_enable(struct clk *clk)
+{
+        _clk_pccr01_enable(CCM_PCCR0_EMMA_MASK, CCM_PCCR1_HCLK_EMMA_MASK);
+
+        return 0;
+}
+
+static void _clk_emma_disable(struct clk *clk)
+{
+        _clk_pccr01_disable(CCM_PCCR0_EMMA_MASK, CCM_PCCR1_HCLK_EMMA_MASK);
+}
+
+static int _clk_slcdc_enable(struct clk *clk)
+{
+        _clk_pccr01_enable(CCM_PCCR0_SLCDC_MASK, CCM_PCCR1_HCLK_SLCDC_MASK);
+
+        return 0;
+}
+
+static void _clk_slcdc_disable(struct clk *clk)
+{
+        _clk_pccr01_disable(CCM_PCCR0_SLCDC_MASK, CCM_PCCR1_HCLK_SLCDC_MASK);
+}
+
+static int _clk_fec_enable(struct clk *clk)
+{
+        _clk_pccr01_enable(CCM_PCCR0_FEC_MASK, CCM_PCCR1_HCLK_FEC_MASK);
+
+        return 0;
+}
+
+static void _clk_fec_disable(struct clk *clk)
+{
+        _clk_pccr01_disable(CCM_PCCR0_FEC_MASK, CCM_PCCR1_HCLK_FEC_MASK);
+}
+
+static int _clk_vpu_enable(struct clk *clk)
+{
+        unsigned long reg;
+
+        reg = __raw_readl(CCM_PCCR1);
+        reg |= CCM_PCCR1_VPU_BAUD_MASK | CCM_PCCR1_HCLK_VPU_MASK;
+        __raw_writel(reg, CCM_PCCR1);
+
+        return 0;
+}
+
+static void _clk_vpu_disable(struct clk *clk)
+{
+        unsigned long reg;
+
+        reg = __raw_readl(CCM_PCCR1);
+        reg &= ~(CCM_PCCR1_VPU_BAUD_MASK | CCM_PCCR1_HCLK_VPU_MASK);
+        __raw_writel(reg, CCM_PCCR1);
+}
+
+static int _clk_sahara2_enable(struct clk *clk)
+{
+        _clk_pccr01_enable(CCM_PCCR0_SAHARA_MASK, CCM_PCCR1_HCLK_SAHARA_MASK);
+
+        return 0;
+}
+
+static void _clk_sahara2_disable(struct clk *clk)
+{
+        _clk_pccr01_disable(CCM_PCCR0_SAHARA_MASK, CCM_PCCR1_HCLK_SAHARA_MASK);
+}
+
+static int _clk_mstick1_enable(struct clk *clk)
+{
+        _clk_pccr10_enable(CCM_PCCR1_MSHC_BAUD_MASK, CCM_PCCR0_MSHC_MASK);
+
+        return 0;
+}
+
+static void _clk_mstick1_disable(struct clk *clk)
+{
+        _clk_pccr10_disable(CCM_PCCR1_MSHC_BAUD_MASK, CCM_PCCR0_MSHC_MASK);
+}
+
+#define CSCR() (__raw_readl(CCM_CSCR))
+#define PCDR0() (__raw_readl(CCM_PCDR0))
+#define PCDR1() (__raw_readl(CCM_PCDR1))
+
+static int _clk_cpu_set_parent(struct clk *clk, struct clk *parent)
+{
+        int cscr = CSCR();
+
+        if (clk->parent == parent)
+                return 0;
+
+        if (mx27_revision() >= CHIP_REV_2_0) {
+                if (parent == &mpll_main_clk[0]) {
+                        cscr |= CCM_CSCR_ARM_SRC;
+                } else {
+                        if (parent == &mpll_main_clk[1])
+                                cscr &= ~CCM_CSCR_ARM_SRC;
+                        else
+                                return -EINVAL;
+                }
+                __raw_writel(cscr, CCM_CSCR);
+        } else
+                return -ENODEV;
+
+        clk->parent = parent;
+        return 0;
+}
+
+static unsigned long _clk_cpu_round_rate(struct clk *clk, unsigned long rate)
+{
+        int div;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        div = parent_rate / rate;
+        if (parent_rate % rate)
+                div++;
+
+        if (div > 4)
+                div = 4;
+
+        return parent_rate / div;
+}
+
+static int _clk_cpu_set_rate(struct clk *clk, unsigned long rate)
+{
+        unsigned int div;
+        uint32_t reg;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        div = parent_rate / rate;
+
+        if (div > 4 || div < 1 || ((parent_rate / div) != rate))
+                return -EINVAL;
+
+        div--;
+
+        reg = __raw_readl(CCM_CSCR);
+        if (mx27_revision() >= CHIP_REV_2_0) {
+                reg &= ~CCM_CSCR_ARM_MASK;
+                reg |= div << CCM_CSCR_ARM_OFFSET;
+                reg &= ~0x06;
+                __raw_writel(reg | 0x80000000, CCM_CSCR);
+        } else {
+                printk(KERN_ERR "Cant set CPU frequency!\n");
+        }
+
+        return 0;
+}
+
+static unsigned long _clk_perclkx_round_rate(struct clk *clk,
+                                             unsigned long rate)
+{
+        u32 div;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        div = parent_rate / rate;
+        if (parent_rate % rate)
+                div++;
+
+        if (div > 64)
+                div = 64;
+
+        return parent_rate / div;
+}
+
+static int _clk_perclkx_set_rate(struct clk *clk, unsigned long rate)
+{
+        u32 reg;
+        u32 div;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        if (clk->id < 0 || clk->id > 3)
+                return -EINVAL;
+
+        div = parent_rate / rate;
+        if (div > 64 || div < 1 || ((parent_rate / div) != rate))
+                return -EINVAL;
+        div--;
+
+        reg =
+            __raw_readl(CCM_PCDR1) & ~(CCM_PCDR1_PERDIV1_MASK <<
+                                       (clk->id << 3));
+        reg |= div << (clk->id << 3);
+        __raw_writel(reg, CCM_PCDR1);
+
+        return 0;
+}
+
+static unsigned long _clk_usb_recalc(struct clk *clk)
+{
+        unsigned long usb_pdf;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        usb_pdf = (CSCR() & CCM_CSCR_USB_MASK) >> CCM_CSCR_USB_OFFSET;
+
+        return parent_rate / (usb_pdf + 1U);
+}
+
+static unsigned long _clk_ssi1_recalc(struct clk *clk)
+{
+        unsigned long ssi1_pdf;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        ssi1_pdf = (PCDR0() & CCM_PCDR0_SSI1BAUDDIV_MASK) >>
+                                        CCM_PCDR0_SSI1BAUDDIV_OFFSET;
+
+        if (mx27_revision() >= CHIP_REV_2_0)
+                ssi1_pdf += 4;
+        else
+                ssi1_pdf = (ssi1_pdf < 2) ? 124UL : ssi1_pdf;
+
+        return 2UL * parent_rate / ssi1_pdf;
+}
+
+static unsigned long _clk_ssi2_recalc(struct clk *clk)
+{
+        unsigned long ssi2_pdf;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        ssi2_pdf = (PCDR0() & CCM_PCDR0_SSI2BAUDDIV_MASK) >>
+            CCM_PCDR0_SSI2BAUDDIV_OFFSET;
+
+        if (mx27_revision() >= CHIP_REV_2_0)
+                ssi2_pdf += 4;
+        else
+                ssi2_pdf = (ssi2_pdf < 2) ? 124UL : ssi2_pdf;
+
+        return 2UL * parent_rate / ssi2_pdf;
+}
+
+static unsigned long _clk_nfc_recalc(struct clk *clk)
+{
+        unsigned long nfc_pdf;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        if (mx27_revision() >= CHIP_REV_2_0) {
+                nfc_pdf =
+                    (PCDR0() & CCM_PCDR0_NFCDIV2_MASK) >>
+                    CCM_PCDR0_NFCDIV2_OFFSET;
+        } else {
+                nfc_pdf =
+                    (PCDR0() & CCM_PCDR0_NFCDIV_MASK) >>
+                    CCM_PCDR0_NFCDIV_OFFSET;
+        }
+
+        return parent_rate / (nfc_pdf + 1);
+}
+
+static unsigned long _clk_vpu_recalc(struct clk *clk)
+{
+        unsigned long vpu_pdf;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        if (mx27_revision() >= CHIP_REV_2_0) {
+                vpu_pdf =
+                    (PCDR0() & CCM_PCDR0_VPUDIV2_MASK) >>
+                    CCM_PCDR0_VPUDIV2_OFFSET;
+                vpu_pdf += 4;
+        } else {
+                vpu_pdf =
+                    (PCDR0() & CCM_PCDR0_VPUDIV_MASK) >>
+                    CCM_PCDR0_VPUDIV_OFFSET;
+                vpu_pdf = (vpu_pdf < 2) ? 124 : vpu_pdf;
+        }
+        return 2UL * parent_rate / vpu_pdf;
+}
+
+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);
+}
+
+/* in Hz */
+static unsigned long external_high_reference = 26000000;
+
+static unsigned long get_high_reference_clock_rate(struct clk *clk)
+{
+        return external_high_reference;
+}
+
+/*
+ * the high frequency external clock reference
+ * Default case is 26MHz. Could be changed at runtime
+ * with a call to change_external_high_reference()
+ */
+static struct clk ckih_clk = {
+        .name = "ckih",
+        .get_rate = get_high_reference_clock_rate,
+};
+
+/* in Hz */
+static unsigned long external_low_reference = 32768;
+
+static unsigned long get_low_reference_clock_rate(struct clk *clk)
+{
+        return external_low_reference;
+}
+
+/*
+ * the low frequency external clock reference
+ * Default case is 32.768kHz Could be changed at runtime
+ * with a call to change_external_low_reference()
+ */
+static struct clk ckil_clk = {
+        .name = "ckil",
+        .get_rate = get_low_reference_clock_rate,
+};
+
+static unsigned long get_mpll_clk(struct clk *clk)
+{
+        uint32_t reg;
+        unsigned long ref_clk;
+        unsigned long mfi = 0, mfn = 0, mfd = 0, pdf = 0;
+        unsigned long long temp;
+
+        ref_clk = clk_get_rate(clk->parent);
+
+        reg = __raw_readl(CCM_MPCTL0);
+        pdf = (reg & CCM_MPCTL0_PD_MASK) >> CCM_MPCTL0_PD_OFFSET;
+        mfd = (reg & CCM_MPCTL0_MFD_MASK) >> CCM_MPCTL0_MFD_OFFSET;
+        mfi = (reg & CCM_MPCTL0_MFI_MASK) >> CCM_MPCTL0_MFI_OFFSET;
+        mfn = (reg & CCM_MPCTL0_MFN_MASK) >> CCM_MPCTL0_MFN_OFFSET;
+
+        mfi = (mfi <= 5) ? 5 : mfi;
+        temp = 2LL * ref_clk * mfn;
+        do_div(temp, mfd + 1);
+        temp = 2LL * ref_clk * mfi + temp;
+        do_div(temp, pdf + 1);
+
+        return (unsigned long)temp;
+}
+
+static struct clk mpll_clk = {
+        .name = "mpll",
+        .parent = &ckih_clk,
+        .get_rate = get_mpll_clk,
+};
+
+static unsigned long _clk_mpll_main_get_rate(struct clk *clk)
+{
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        /* i.MX27 TO2:
+         * clk->id == 0: arm clock source path 1 which is from 2*MPLL/DIV_2
+         * clk->id == 1: arm clock source path 2 which is from 2*MPLL/DIV_3
+         */
+
+        if (mx27_revision() >= CHIP_REV_2_0 && clk->id == 1)
+                return 2UL * parent_rate / 3UL;
+
+        return parent_rate;
+}
+
+static struct clk mpll_main_clk[] = {
+        {
+                /* For i.MX27 TO2, it is the MPLL path 1 of ARM core
+                 * It provide the clock source whose rate is same as MPLL
+                 */
+                .name = "mpll_main",
+                .id = 0,
+                .parent = &mpll_clk,
+                .get_rate = _clk_mpll_main_get_rate
+        }, {
+                /* For i.MX27 TO2, it is the MPLL path 2 of ARM core
+                 * It provide the clock source whose rate is same MPLL * 2/3
+                 */
+                .name = "mpll_main",
+                .id = 1,
+                .parent = &mpll_clk,
+                .get_rate = _clk_mpll_main_get_rate
+        }
+};
+
+static unsigned long get_spll_clk(struct clk *clk)
+{
+        uint32_t reg;
+        unsigned long ref_clk;
+        unsigned long mfi = 0, mfn = 0, mfd = 0, pdf = 0;
+        unsigned long long temp;
+
+        ref_clk = clk_get_rate(clk->parent);
+
+        reg = __raw_readl(CCM_SPCTL0);
+        /*TODO: This is TO2 Bug */
+        if (mx27_revision() >= CHIP_REV_2_0)
+                __raw_writel(reg, CCM_SPCTL0);
+
+        pdf = (reg & CCM_SPCTL0_PD_MASK) >> CCM_SPCTL0_PD_OFFSET;
+        mfd = (reg & CCM_SPCTL0_MFD_MASK) >> CCM_SPCTL0_MFD_OFFSET;
+        mfi = (reg & CCM_SPCTL0_MFI_MASK) >> CCM_SPCTL0_MFI_OFFSET;
+        mfn = (reg & CCM_SPCTL0_MFN_MASK) >> CCM_SPCTL0_MFN_OFFSET;
+
+        mfi = (mfi <= 5) ? 5 : mfi;
+        temp = 2LL * ref_clk * mfn;
+        do_div(temp, mfd + 1);
+        temp = 2LL * ref_clk * mfi + temp;
+        do_div(temp, pdf + 1);
+
+        return (unsigned long)temp;
+}
+
+static struct clk spll_clk = {
+        .name = "spll",
+        .parent = &ckih_clk,
+        .get_rate = get_spll_clk,
+        .enable = _clk_spll_enable,
+        .disable = _clk_spll_disable,
+};
+
+static unsigned long get_cpu_clk(struct clk *clk)
+{
+        u32 div;
+        unsigned long rate;
+
+        if (mx27_revision() >= CHIP_REV_2_0)
+                div = (CSCR() & CCM_CSCR_ARM_MASK) >> CCM_CSCR_ARM_OFFSET;
+        else
+                div = (CSCR() & CCM_CSCR_PRESC_MASK) >> CCM_CSCR_PRESC_OFFSET;
+
+        rate = clk_get_rate(clk->parent);
+        return rate / (div + 1);
+}
+
+static struct clk cpu_clk = {
+        .name = "cpu_clk",
+        .parent = &mpll_main_clk[1],
+        .set_parent = _clk_cpu_set_parent,
+        .round_rate = _clk_cpu_round_rate,
+        .get_rate = get_cpu_clk,
+        .set_rate = _clk_cpu_set_rate,
+};
+
+static unsigned long get_ahb_clk(struct clk *clk)
+{
+        unsigned long rate;
+        unsigned long bclk_pdf;
+
+        if (mx27_revision() >= CHIP_REV_2_0)
+                bclk_pdf = (CSCR() & CCM_CSCR_AHB_MASK)
+                                        >> CCM_CSCR_AHB_OFFSET;
+        else
+                bclk_pdf = (CSCR() & CCM_CSCR_BCLK_MASK)
+                                        >> CCM_CSCR_BCLK_OFFSET;
+
+        rate = clk_get_rate(clk->parent);
+        return rate / (bclk_pdf + 1);
+}
+
+static struct clk ahb_clk = {
+        .name = "ahb_clk",
+        .parent = &mpll_main_clk[1],
+        .get_rate = get_ahb_clk,
+};
+
+static unsigned long get_ipg_clk(struct clk *clk)
+{
+        unsigned long rate;
+        unsigned long ipg_pdf;
+
+        if (mx27_revision() >= CHIP_REV_2_0)
+                return clk_get_rate(clk->parent);
+        else
+                ipg_pdf = (CSCR() & CCM_CSCR_IPDIV) >> CCM_CSCR_IPDIV_OFFSET;
+
+        rate = clk_get_rate(clk->parent);
+        return rate / (ipg_pdf + 1);
+}
+
+static struct clk ipg_clk = {
+        .name = "ipg_clk",
+        .parent = &ahb_clk,
+        .get_rate = get_ipg_clk,
+};
+
+static unsigned long _clk_perclkx_recalc(struct clk *clk)
+{
+        unsigned long perclk_pdf;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        if (clk->id < 0 || clk->id > 3)
+                return 0;
+
+        perclk_pdf = (PCDR1() >> (clk->id << 3)) & CCM_PCDR1_PERDIV1_MASK;
+
+        return parent_rate / (perclk_pdf + 1);
+}
+
+static struct clk per_clk[] = {
+        {
+                .name = "per_clk",
+                .id = 0,
+                .parent = &mpll_main_clk[1],
+                .get_rate = _clk_perclkx_recalc,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_PERCLK1_OFFSET,
+                .disable = _clk_disable,
+        }, {
+                .name = "per_clk",
+                .id = 1,
+                .parent = &mpll_main_clk[1],
+                .get_rate = _clk_perclkx_recalc,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_PERCLK2_OFFSET,
+                .disable = _clk_disable,
+        }, {
+                .name = "per_clk",
+                .id = 2,
+                .parent = &mpll_main_clk[1],
+                .round_rate = _clk_perclkx_round_rate,
+                .set_rate = _clk_perclkx_set_rate,
+                .get_rate = _clk_perclkx_recalc,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_PERCLK3_OFFSET,
+                .disable = _clk_disable,
+        }, {
+                .name = "per_clk",
+                .id = 3,
+                .parent = &mpll_main_clk[1],
+                .round_rate = _clk_perclkx_round_rate,
+                .set_rate = _clk_perclkx_set_rate,
+                .get_rate = _clk_perclkx_recalc,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_PERCLK4_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+struct clk uart1_clk[] = {
+        {
+                .name = "uart_clk",
+                .id = 0,
+                .parent = &per_clk[0],
+                .secondary = &uart1_clk[1],
+        }, {
+                .name = "uart_ipg_clk",
+                .id = 0,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_UART1_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+struct clk uart2_clk[] = {
+        {
+                .name = "uart_clk",
+                .id = 1,
+                .parent = &per_clk[0],
+                .secondary = &uart2_clk[1],
+        }, {
+                .name = "uart_ipg_clk",
+                .id = 1,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_UART2_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+struct clk uart3_clk[] = {
+        {
+                .name = "uart_clk",
+                .id = 2,
+                .parent = &per_clk[0],
+                .secondary = &uart3_clk[1],
+        }, {
+                .name = "uart_ipg_clk",
+                .id = 2,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_UART3_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+struct clk uart4_clk[] = {
+        {
+                .name = "uart_clk",
+                .id = 3,
+                .parent = &per_clk[0],
+                .secondary = &uart4_clk[1],
+        }, {
+                .name = "uart_ipg_clk",
+                .id = 3,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_UART4_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+struct clk uart5_clk[] = {
+        {
+                .name = "uart_clk",
+                .id = 4,
+                .parent = &per_clk[0],
+                .secondary = &uart5_clk[1],
+        }, {
+                .name = "uart_ipg_clk",
+                .id = 4,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_UART5_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+struct clk uart6_clk[] = {
+        {
+                .name = "uart_clk",
+                .id = 5,
+                .parent = &per_clk[0],
+                .secondary = &uart6_clk[1],
+        }, {
+                .name = "uart_ipg_clk",
+                .id = 5,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_UART6_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk gpt1_clk[] = {
+        {
+                .name = "gpt_clk",
+                .id = 0,
+                .parent = &per_clk[0],
+                .secondary = &gpt1_clk[1],
+        }, {
+                .name = "gpt_ipg_clk",
+                .id = 0,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_GPT1_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk gpt2_clk[] = {
+        {
+                .name = "gpt_clk",
+                .id = 1,
+                .parent = &per_clk[0],
+                .secondary = &gpt2_clk[1],
+        }, {
+                .name = "gpt_ipg_clk",
+                .id = 1,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_GPT2_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk gpt3_clk[] = {
+        {
+                .name = "gpt_clk",
+                .id = 2,
+                .parent = &per_clk[0],
+                .secondary = &gpt3_clk[1],
+        }, {
+                .name = "gpt_ipg_clk",
+                .id = 2,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_GPT3_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk gpt4_clk[] = {
+        {
+                .name = "gpt_clk",
+                .id = 3,
+                .parent = &per_clk[0],
+                .secondary = &gpt4_clk[1],
+        }, {
+                .name = "gpt_ipg_clk",
+                .id = 3,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_GPT4_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk gpt5_clk[] = {
+        {
+                .name = "gpt_clk",
+                .id = 4,
+                .parent = &per_clk[0],
+                .secondary = &gpt5_clk[1],
+        }, {
+                .name = "gpt_ipg_clk",
+                .id = 4,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_GPT5_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk gpt6_clk[] = {
+        {
+                .name = "gpt_clk",
+                .id = 5,
+                .parent = &per_clk[0],
+                .secondary = &gpt6_clk[1],
+        }, {
+                .name = "gpt_ipg_clk",
+                .id = 5,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_GPT6_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk pwm_clk[] = {
+        {
+                .name = "pwm_clk",
+                .parent = &per_clk[0],
+                .secondary = &pwm_clk[1],
+        }, {
+                .name = "pwm_clk",
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_PWM_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk sdhc1_clk[] = {
+        {
+                .name = "sdhc_clk",
+                .id = 0,
+                .parent = &per_clk[1],
+                .secondary = &sdhc1_clk[1],
+        }, {
+                .name = "sdhc_ipg_clk",
+                .id = 0,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_SDHC1_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk sdhc2_clk[] = {
+        {
+                .name = "sdhc_clk",
+                .id = 1,
+                .parent = &per_clk[1],
+                .secondary = &sdhc2_clk[1],
+        }, {
+                .name = "sdhc_ipg_clk",
+                .id = 1,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_SDHC2_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk sdhc3_clk[] = {
+        {
+                .name = "sdhc_clk",
+                .id = 2,
+                .parent = &per_clk[1],
+                .secondary = &sdhc3_clk[1],
+        }, {
+                .name = "sdhc_ipg_clk",
+                .id = 2,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_SDHC3_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk cspi1_clk[] = {
+        {
+                .name = "cspi_clk",
+                .id = 0,
+                .parent = &per_clk[1],
+                .secondary = &cspi1_clk[1],
+        }, {
+                .name = "cspi_ipg_clk",
+                .id = 0,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_CSPI1_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk cspi2_clk[] = {
+        {
+                .name = "cspi_clk",
+                .id = 1,
+                .parent = &per_clk[1],
+                .secondary = &cspi2_clk[1],
+        }, {
+                .name = "cspi_ipg_clk",
+                .id = 1,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_CSPI2_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk cspi3_clk[] = {
+        {
+                .name = "cspi_clk",
+                .id = 2,
+                .parent = &per_clk[1],
+                .secondary = &cspi3_clk[1],
+        }, {
+                .name = "cspi_ipg_clk",
+                .id = 2,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_CSPI3_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk lcdc_clk[] = {
+        {
+                .name = "lcdc_clk",
+                .parent = &per_clk[2],
+                .secondary = &lcdc_clk[1],
+                .round_rate = _clk_parent_round_rate,
+                .set_rate = _clk_parent_set_rate,
+        }, {
+                .name = "lcdc_ipg_clk",
+                .parent = &ipg_clk,
+                .secondary = &lcdc_clk[2],
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_LCDC_OFFSET,
+                .disable = _clk_disable,
+        }, {
+                .name = "lcdc_ahb_clk",
+                .parent = &ahb_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_HCLK_LCDC_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk csi_clk[] = {
+        {
+                .name = "csi_perclk",
+                .parent = &per_clk[3],
+                .secondary = &csi_clk[1],
+                .round_rate = _clk_parent_round_rate,
+                .set_rate = _clk_parent_set_rate,
+        }, {
+                .name = "csi_ahb_clk",
+                .parent = &ahb_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_HCLK_CSI_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk usb_clk[] = {
+        {
+                .name = "usb_clk",
+                .parent = &spll_clk,
+                .get_rate = _clk_usb_recalc,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_USBOTG_OFFSET,
+                .disable = _clk_disable,
+        }, {
+                .name = "usb_ahb_clk",
+                .parent = &ahb_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_HCLK_USBOTG_OFFSET,
+                .disable = _clk_disable,
+        }
+};
+
+static struct clk ssi1_clk[] = {
+        {
+                .name = "ssi_clk",
+                .id = 0,
+                .parent = &mpll_main_clk[1],
+                .secondary = &ssi1_clk[1],
+                .get_rate = _clk_ssi1_recalc,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_SSI1_BAUD_OFFSET,
+                .disable = _clk_disable,
+        }, {
+                .name = "ssi_ipg_clk",
+                .id = 0,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_SSI1_IPG_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk ssi2_clk[] = {
+        {
+                .name = "ssi_clk",
+                .id = 1,
+                .parent = &mpll_main_clk[1],
+                .secondary = &ssi2_clk[1],
+                .get_rate = _clk_ssi2_recalc,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR1,
+                .enable_shift = CCM_PCCR1_SSI2_BAUD_OFFSET,
+                .disable = _clk_disable,
+        }, {
+                .name = "ssi_ipg_clk",
+                .id = 1,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_SSI2_IPG_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk nfc_clk = {
+        .name = "nfc_clk",
+        .parent = &cpu_clk,
+        .get_rate = _clk_nfc_recalc,
+        .enable = _clk_enable,
+        .enable_reg = CCM_PCCR1,
+        .enable_shift = CCM_PCCR1_NFC_BAUD_OFFSET,
+        .disable = _clk_disable,
+};
+
+static struct clk vpu_clk = {
+        .name = "vpu_clk",
+        .parent = &mpll_main_clk[1],
+        .get_rate = _clk_vpu_recalc,
+        .enable = _clk_vpu_enable,
+        .disable = _clk_vpu_disable,
+};
+
+static struct clk dma_clk = {
+        .name = "dma_clk",
+        .parent = &ahb_clk,
+        .enable = _clk_dma_enable,
+        .disable = _clk_dma_disable,
+};
+
+static struct clk rtic_clk = {
+        .name = "rtic_clk",
+        .parent = &ahb_clk,
+        .enable = _clk_rtic_enable,
+        .disable = _clk_rtic_disable,
+};
+
+static struct clk brom_clk = {
+        .name = "brom_clk",
+        .parent = &ahb_clk,
+        .enable = _clk_enable,
+        .enable_reg = CCM_PCCR1,
+        .enable_shift = CCM_PCCR1_HCLK_BROM_OFFSET,
+        .disable = _clk_disable,
+};
+
+static struct clk emma_clk = {
+        .name = "emma_clk",
+        .parent = &ahb_clk,
+        .enable = _clk_emma_enable,
+        .disable = _clk_emma_disable,
+};
+
+static struct clk slcdc_clk = {
+        .name = "slcdc_clk",
+        .parent = &ahb_clk,
+        .enable = _clk_slcdc_enable,
+        .disable = _clk_slcdc_disable,
+};
+
+static struct clk fec_clk = {
+        .name = "fec_clk",
+        .parent = &ahb_clk,
+        .enable = _clk_fec_enable,
+        .disable = _clk_fec_disable,
+};
+
+static struct clk emi_clk = {
+        .name = "emi_clk",
+        .parent = &ahb_clk,
+        .enable = _clk_enable,
+        .enable_reg = CCM_PCCR1,
+        .enable_shift = CCM_PCCR1_HCLK_EMI_OFFSET,
+        .disable = _clk_disable,
+};
+
+static struct clk sahara2_clk = {
+        .name = "sahara_clk",
+        .parent = &ahb_clk,
+        .enable = _clk_sahara2_enable,
+        .disable = _clk_sahara2_disable,
+};
+
+static struct clk ata_clk = {
+        .name = "ata_clk",
+        .parent = &ahb_clk,
+        .enable = _clk_enable,
+        .enable_reg = CCM_PCCR1,
+        .enable_shift = CCM_PCCR1_HCLK_ATA_OFFSET,
+        .disable = _clk_disable,
+};
+
+static struct clk mstick1_clk = {
+        .name = "mstick1_clk",
+        .parent = &ipg_clk,
+        .enable = _clk_mstick1_enable,
+        .disable = _clk_mstick1_disable,
+};
+
+static struct clk wdog_clk = {
+        .name = "wdog_clk",
+        .parent = &ipg_clk,
+        .enable = _clk_enable,
+        .enable_reg = CCM_PCCR1,
+        .enable_shift = CCM_PCCR1_WDT_OFFSET,
+        .disable = _clk_disable,
+};
+
+static struct clk gpio_clk = {
+        .name = "gpio_clk",
+        .parent = &ipg_clk,
+        .enable = _clk_enable,
+        .enable_reg = CCM_PCCR1,
+        .enable_shift = CCM_PCCR0_GPIO_OFFSET,
+        .disable = _clk_disable,
+};
+
+static struct clk i2c_clk[] = {
+        {
+                .name = "i2c_clk",
+                .id = 0,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_I2C1_OFFSET,
+                .disable = _clk_disable,
+        }, {
+                .name = "i2c_clk",
+                .id = 1,
+                .parent = &ipg_clk,
+                .enable = _clk_enable,
+                .enable_reg = CCM_PCCR0,
+                .enable_shift = CCM_PCCR0_I2C2_OFFSET,
+                .disable = _clk_disable,
+        },
+};
+
+static struct clk iim_clk = {
+        .name = "iim_clk",
+        .parent = &ipg_clk,
+        .enable = _clk_enable,
+        .enable_reg = CCM_PCCR0,
+        .enable_shift = CCM_PCCR0_IIM_OFFSET,
+        .disable = _clk_disable,
+};
+
+static struct clk kpp_clk = {
+        .name = "kpp_clk",
+        .parent = &ipg_clk,
+        .enable = _clk_enable,
+        .enable_reg = CCM_PCCR0,
+        .enable_shift = CCM_PCCR0_KPP_OFFSET,
+        .disable = _clk_disable,
+};
+
+static struct clk owire_clk = {
+        .name = "owire_clk",
+        .parent = &ipg_clk,
+        .enable = _clk_enable,
+        .enable_reg = CCM_PCCR0,
+        .enable_shift = CCM_PCCR0_OWIRE_OFFSET,
+        .disable = _clk_disable,
+};
+
+static struct clk rtc_clk = {
+        .name = "rtc_clk",
+        .parent = &ipg_clk,
+        .enable = _clk_enable,
+        .enable_reg = CCM_PCCR0,
+        .enable_shift = CCM_PCCR0_RTC_OFFSET,
+        .disable = _clk_disable,
+};
+
+static struct clk scc_clk = {
+        .name = "scc_clk",
+        .parent = &ipg_clk,
+        .enable = _clk_enable,
+        .enable_reg = CCM_PCCR0,
+        .enable_shift = CCM_PCCR0_SCC_OFFSET,
+        .disable = _clk_disable,
+};
+
+static unsigned long _clk_clko_round_rate(struct clk *clk, unsigned long rate)
+{
+        u32 div;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+        div = parent_rate / rate;
+        if (parent_rate % rate)
+                div++;
+
+        if (div > 8)
+                div = 8;
+
+        return parent_rate / div;
+}
+
+static int _clk_clko_set_rate(struct clk *clk, unsigned long rate)
+{
+        u32 reg;
+        u32 div;
+        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_PCDR0) & ~CCM_PCDR0_CLKODIV_MASK;
+        reg |= div << CCM_PCDR0_CLKODIV_OFFSET;
+        __raw_writel(reg, CCM_PCDR0);
+
+        return 0;
+}
+
+static unsigned long _clk_clko_recalc(struct clk *clk)
+{
+        u32 div;
+        unsigned long parent_rate;
+
+        parent_rate = clk_get_rate(clk->parent);
+
+        div = __raw_readl(CCM_PCDR0) & CCM_PCDR0_CLKODIV_MASK >>
+                CCM_PCDR0_CLKODIV_OFFSET;
+        div++;
+
+        return parent_rate / div;
+}
+
+static int _clk_clko_set_parent(struct clk *clk, struct clk *parent)
+{
+        u32 reg;
+
+        reg = __raw_readl(CCM_CCSR) & ~CCM_CCSR_CLKOSEL_MASK;
+
+        if (parent == &ckil_clk)
+                reg |= 0 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &ckih_clk)
+                reg |= 2 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == mpll_clk.parent)
+                reg |= 3 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == spll_clk.parent)
+                reg |= 4 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &mpll_clk)
+                reg |= 5 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &spll_clk)
+                reg |= 6 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &cpu_clk)
+                reg |= 7 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &ahb_clk)
+                reg |= 8 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &ipg_clk)
+                reg |= 9 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &per_clk[0])
+                reg |= 0xA << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &per_clk[1])
+                reg |= 0xB << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &per_clk[2])
+                reg |= 0xC << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &per_clk[3])
+                reg |= 0xD << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &ssi1_clk[0])
+                reg |= 0xE << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &ssi2_clk[0])
+                reg |= 0xF << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &nfc_clk)
+                reg |= 0x10 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &mstick1_clk)
+                reg |= 0x11 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &vpu_clk)
+                reg |= 0x12 << CCM_CCSR_CLKOSEL_OFFSET;
+        else if (parent == &usb_clk[0])
+                reg |= 0x15 << CCM_CCSR_CLKOSEL_OFFSET;
+        else
+                return -EINVAL;
+
+        __raw_writel(reg, CCM_CCSR);
+
+        return 0;
+}
+
+static int _clk_clko_enable(struct clk *clk)
+{
+        u32 reg;
+
+        reg = __raw_readl(CCM_PCDR0) | CCM_PCDR0_CLKO_EN;
+        __raw_writel(reg, CCM_PCDR0);
+
+        return 0;
+}
+
+static void _clk_clko_disable(struct clk *clk)
+{
+        u32 reg;
+
+        reg = __raw_readl(CCM_PCDR0) & ~CCM_PCDR0_CLKO_EN;
+        __raw_writel(reg, CCM_PCDR0);
+}
+
+static struct clk clko_clk = {
+        .name = "clko_clk",
+        .get_rate = _clk_clko_recalc,
+        .set_rate = _clk_clko_set_rate,
+        .round_rate = _clk_clko_round_rate,
+        .set_parent = _clk_clko_set_parent,
+        .enable = _clk_clko_enable,
+        .disable = _clk_clko_disable,
+};
+
+static struct clk *mxc_clks[] = {
+        &ckih_clk,
+        &ckil_clk,
+        &mpll_clk,
+        &mpll_main_clk[0],
+        &mpll_main_clk[1],
+        &spll_clk,
+        &cpu_clk,
+        &ahb_clk,
+        &ipg_clk,
+        &per_clk[0],
+        &per_clk[1],
+        &per_clk[2],
+        &per_clk[3],
+        &clko_clk,
+        &uart1_clk[0],
+        &uart1_clk[1],
+        &uart2_clk[0],
+        &uart2_clk[1],
+        &uart3_clk[0],
+        &uart3_clk[1],
+        &uart4_clk[0],
+        &uart4_clk[1],
+        &uart5_clk[0],
+        &uart5_clk[1],
+        &uart6_clk[0],
+        &uart6_clk[1],
+        &gpt1_clk[0],
+        &gpt1_clk[1],
+        &gpt2_clk[0],
+        &gpt2_clk[1],
+        &gpt3_clk[0],
+        &gpt3_clk[1],
+        &gpt4_clk[0],
+        &gpt4_clk[1],
+        &gpt5_clk[0],
+        &gpt5_clk[1],
+        &gpt6_clk[0],
+        &gpt6_clk[1],
+        &pwm_clk[0],
+        &pwm_clk[1],
+        &sdhc1_clk[0],
+        &sdhc1_clk[1],
+        &sdhc2_clk[0],
+        &sdhc2_clk[1],
+        &sdhc3_clk[0],
+        &sdhc3_clk[1],
+        &cspi1_clk[0],
+        &cspi1_clk[1],
+        &cspi2_clk[0],
+        &cspi2_clk[1],
+        &cspi3_clk[0],
+        &cspi3_clk[1],
+        &lcdc_clk[0],
+        &lcdc_clk[1],
+        &lcdc_clk[2],
+        &csi_clk[0],
+        &csi_clk[1],
+        &usb_clk[0],
+        &usb_clk[1],
+        &ssi1_clk[0],
+        &ssi1_clk[1],
+        &ssi2_clk[0],
+        &ssi2_clk[1],
+        &nfc_clk,
+        &vpu_clk,
+        &dma_clk,
+        &rtic_clk,
+        &brom_clk,
+        &emma_clk,
+        &slcdc_clk,
+        &fec_clk,
+        &emi_clk,
+        &sahara2_clk,
+        &ata_clk,
+        &mstick1_clk,
+        &wdog_clk,
+        &gpio_clk,
+        &i2c_clk[0],
+        &i2c_clk[1],
+        &iim_clk,
+        &kpp_clk,
+        &owire_clk,
+        &rtc_clk,
+        &scc_clk,
+};
+
+void __init change_external_low_reference(unsigned long new_ref)
+{
+        external_low_reference = new_ref;
+}
+
+unsigned long __init clk_early_get_timer_rate(void)
+{
+        return clk_get_rate(&per_clk[0]);
+}
+
+static void __init probe_mxc_clocks(void)
+{
+        int i;
+
+        if (mx27_revision() >= CHIP_REV_2_0) {
+                if (CSCR() & 0x8000)
+                        cpu_clk.parent = &mpll_main_clk[0];
+
+                if (!(CSCR() & 0x00800000))
+                        ssi2_clk[0].parent = &spll_clk;
+
+                if (!(CSCR() & 0x00400000))
+                        ssi1_clk[0].parent = &spll_clk;
+
+                if (!(CSCR() & 0x00200000))
+                        vpu_clk.parent = &spll_clk;
+        } else {
+                cpu_clk.parent = &mpll_clk;
+                cpu_clk.set_parent = NULL;
+                cpu_clk.round_rate = NULL;
+                cpu_clk.set_rate = NULL;
+                ahb_clk.parent = &mpll_clk;
+
+                for (i = 0; i < sizeof(per_clk) / sizeof(per_clk[0]); i++)
+                        per_clk[i].parent = &mpll_clk;
+
+                ssi1_clk[0].parent = &mpll_clk;
+                ssi2_clk[0].parent = &mpll_clk;
+
+                vpu_clk.parent = &mpll_clk;
+        }
+}
+
+/*
+ * must be called very early to get information about the
+ * available clock rate when the timer framework starts
+ */
+int __init mxc_clocks_init(unsigned long fref)
+{
+        u32 cscr;
+        struct clk **clkp;
+
+        external_high_reference = fref;
+
+        /* detect clock reference for both system PLL */
+        cscr = CSCR();
+        if (cscr & CCM_CSCR_MCU)
+                mpll_clk.parent = &ckih_clk;
+        else
+                mpll_clk.parent = &ckil_clk;
+
+        if (cscr & CCM_CSCR_SP)
+                spll_clk.parent = &ckih_clk;
+        else
+                spll_clk.parent = &ckil_clk;
+
+        probe_mxc_clocks();
+
+        per_clk[0].enable(&per_clk[0]);
+        gpt1_clk[1].enable(&gpt1_clk[1]);
+
+        for (clkp = mxc_clks; clkp < mxc_clks + ARRAY_SIZE(mxc_clks); clkp++)
+                clk_register(*clkp);
+
+        /* Turn off all possible clocks */
+        __raw_writel(CCM_PCCR0_GPT1_MASK, CCM_PCCR0);
+        __raw_writel(CCM_PCCR1_PERCLK1_MASK | CCM_PCCR1_HCLK_EMI_MASK,
+                     CCM_PCCR1);
+        spll_clk.disable(&spll_clk);
+
+        /* This will propagate to all children and init all the clock rates */
+
+        clk_enable(&emi_clk);
+        clk_enable(&gpio_clk);
+        clk_enable(&iim_clk);
+        clk_enable(&gpt1_clk[0]);
+#ifdef CONFIG_DEBUG_LL_CONSOLE
+        clk_enable(&uart1_clk[0]);
+#endif
+        return 0;
+}