Merge branches 'battery-scope', 'logitech' and 'multitouch' into for-linus

[sfrench/cifs-2.6.git] / arch / arm / mach-imx / clock-imx6q.c

/*
 * Copyright 2011 Freescale Semiconductor, Inc.
 * Copyright 2011 Linaro Ltd.
 *
 * The code contained herein is licensed under the GNU General Public
 * License. You may obtain a copy of the GNU General Public License
 * Version 2 or later at the following locations:
 *
 * http://www.opensource.org/licenses/gpl-license.html
 * http://www.gnu.org/copyleft/gpl.html
 */

#include <linux/init.h>
#include <linux/types.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <asm/div64.h>
#include <asm/mach/map.h>
#include <mach/clock.h>
#include <mach/common.h>
#include <mach/hardware.h>

#define PLL_BASE                IMX_IO_ADDRESS(MX6Q_ANATOP_BASE_ADDR)
#define PLL1_SYS                (PLL_BASE + 0x000)
#define PLL2_BUS                (PLL_BASE + 0x030)
#define PLL3_USB_OTG            (PLL_BASE + 0x010)
#define PLL4_AUDIO              (PLL_BASE + 0x070)
#define PLL5_VIDEO              (PLL_BASE + 0x0a0)
#define PLL6_MLB                (PLL_BASE + 0x0d0)
#define PLL7_USB_HOST           (PLL_BASE + 0x020)
#define PLL8_ENET               (PLL_BASE + 0x0e0)
#define PFD_480                 (PLL_BASE + 0x0f0)
#define PFD_528                 (PLL_BASE + 0x100)
#define PLL_NUM_OFFSET          0x010
#define PLL_DENOM_OFFSET        0x020

#define PFD0                    7
#define PFD1                    15
#define PFD2                    23
#define PFD3                    31
#define PFD_FRAC_MASK           0x3f

#define BM_PLL_BYPASS                   (0x1 << 16)
#define BM_PLL_ENABLE                   (0x1 << 13)
#define BM_PLL_POWER_DOWN               (0x1 << 12)
#define BM_PLL_LOCK                     (0x1 << 31)
#define BP_PLL_SYS_DIV_SELECT           0
#define BM_PLL_SYS_DIV_SELECT           (0x7f << 0)
#define BP_PLL_BUS_DIV_SELECT           0
#define BM_PLL_BUS_DIV_SELECT           (0x1 << 0)
#define BP_PLL_USB_DIV_SELECT           0
#define BM_PLL_USB_DIV_SELECT           (0x3 << 0)
#define BP_PLL_AV_DIV_SELECT            0
#define BM_PLL_AV_DIV_SELECT            (0x7f << 0)
#define BP_PLL_ENET_DIV_SELECT          0
#define BM_PLL_ENET_DIV_SELECT          (0x3 << 0)
#define BM_PLL_ENET_EN_PCIE             (0x1 << 19)
#define BM_PLL_ENET_EN_SATA             (0x1 << 20)

#define CCM_BASE        IMX_IO_ADDRESS(MX6Q_CCM_BASE_ADDR)
#define CCR             (CCM_BASE + 0x00)
#define CCDR            (CCM_BASE + 0x04)
#define CSR             (CCM_BASE + 0x08)
#define CCSR            (CCM_BASE + 0x0c)
#define CACRR           (CCM_BASE + 0x10)
#define CBCDR           (CCM_BASE + 0x14)
#define CBCMR           (CCM_BASE + 0x18)
#define CSCMR1          (CCM_BASE + 0x1c)
#define CSCMR2          (CCM_BASE + 0x20)
#define CSCDR1          (CCM_BASE + 0x24)
#define CS1CDR          (CCM_BASE + 0x28)
#define CS2CDR          (CCM_BASE + 0x2c)
#define CDCDR           (CCM_BASE + 0x30)
#define CHSCCDR         (CCM_BASE + 0x34)
#define CSCDR2          (CCM_BASE + 0x38)
#define CSCDR3          (CCM_BASE + 0x3c)
#define CSCDR4          (CCM_BASE + 0x40)
#define CWDR            (CCM_BASE + 0x44)
#define CDHIPR          (CCM_BASE + 0x48)
#define CDCR            (CCM_BASE + 0x4c)
#define CTOR            (CCM_BASE + 0x50)
#define CLPCR           (CCM_BASE + 0x54)
#define CISR            (CCM_BASE + 0x58)
#define CIMR            (CCM_BASE + 0x5c)
#define CCOSR           (CCM_BASE + 0x60)
#define CGPR            (CCM_BASE + 0x64)
#define CCGR0           (CCM_BASE + 0x68)
#define CCGR1           (CCM_BASE + 0x6c)
#define CCGR2           (CCM_BASE + 0x70)
#define CCGR3           (CCM_BASE + 0x74)
#define CCGR4           (CCM_BASE + 0x78)
#define CCGR5           (CCM_BASE + 0x7c)
#define CCGR6           (CCM_BASE + 0x80)
#define CCGR7           (CCM_BASE + 0x84)
#define CMEOR           (CCM_BASE + 0x88)

#define CG0             0
#define CG1             2
#define CG2             4
#define CG3             6
#define CG4             8
#define CG5             10
#define CG6             12
#define CG7             14
#define CG8             16
#define CG9             18
#define CG10            20
#define CG11            22
#define CG12            24
#define CG13            26
#define CG14            28
#define CG15            30

#define BM_CCSR_PLL1_SW_SEL             (0x1 << 2)
#define BM_CCSR_STEP_SEL                (0x1 << 8)

#define BP_CACRR_ARM_PODF               0
#define BM_CACRR_ARM_PODF               (0x7 << 0)

#define BP_CBCDR_PERIPH2_CLK2_PODF      0
#define BM_CBCDR_PERIPH2_CLK2_PODF      (0x7 << 0)
#define BP_CBCDR_MMDC_CH1_AXI_PODF      3
#define BM_CBCDR_MMDC_CH1_AXI_PODF      (0x7 << 3)
#define BP_CBCDR_AXI_SEL                6
#define BM_CBCDR_AXI_SEL                (0x3 << 6)
#define BP_CBCDR_IPG_PODF               8
#define BM_CBCDR_IPG_PODF               (0x3 << 8)
#define BP_CBCDR_AHB_PODF               10
#define BM_CBCDR_AHB_PODF               (0x7 << 10)
#define BP_CBCDR_AXI_PODF               16
#define BM_CBCDR_AXI_PODF               (0x7 << 16)
#define BP_CBCDR_MMDC_CH0_AXI_PODF      19
#define BM_CBCDR_MMDC_CH0_AXI_PODF      (0x7 << 19)
#define BP_CBCDR_PERIPH_CLK_SEL         25
#define BM_CBCDR_PERIPH_CLK_SEL         (0x1 << 25)
#define BP_CBCDR_PERIPH2_CLK_SEL        26
#define BM_CBCDR_PERIPH2_CLK_SEL        (0x1 << 26)
#define BP_CBCDR_PERIPH_CLK2_PODF       27
#define BM_CBCDR_PERIPH_CLK2_PODF       (0x7 << 27)

#define BP_CBCMR_GPU2D_AXI_SEL          0
#define BM_CBCMR_GPU2D_AXI_SEL          (0x1 << 0)
#define BP_CBCMR_GPU3D_AXI_SEL          1
#define BM_CBCMR_GPU3D_AXI_SEL          (0x1 << 1)
#define BP_CBCMR_GPU3D_CORE_SEL         4
#define BM_CBCMR_GPU3D_CORE_SEL         (0x3 << 4)
#define BP_CBCMR_GPU3D_SHADER_SEL       8
#define BM_CBCMR_GPU3D_SHADER_SEL       (0x3 << 8)
#define BP_CBCMR_PCIE_AXI_SEL           10
#define BM_CBCMR_PCIE_AXI_SEL           (0x1 << 10)
#define BP_CBCMR_VDO_AXI_SEL            11
#define BM_CBCMR_VDO_AXI_SEL            (0x1 << 11)
#define BP_CBCMR_PERIPH_CLK2_SEL        12
#define BM_CBCMR_PERIPH_CLK2_SEL        (0x3 << 12)
#define BP_CBCMR_VPU_AXI_SEL            14
#define BM_CBCMR_VPU_AXI_SEL            (0x3 << 14)
#define BP_CBCMR_GPU2D_CORE_SEL         16
#define BM_CBCMR_GPU2D_CORE_SEL         (0x3 << 16)
#define BP_CBCMR_PRE_PERIPH_CLK_SEL     18
#define BM_CBCMR_PRE_PERIPH_CLK_SEL     (0x3 << 18)
#define BP_CBCMR_PERIPH2_CLK2_SEL       20
#define BM_CBCMR_PERIPH2_CLK2_SEL       (0x1 << 20)
#define BP_CBCMR_PRE_PERIPH2_CLK_SEL    21
#define BM_CBCMR_PRE_PERIPH2_CLK_SEL    (0x3 << 21)
#define BP_CBCMR_GPU2D_CORE_PODF        23
#define BM_CBCMR_GPU2D_CORE_PODF        (0x7 << 23)
#define BP_CBCMR_GPU3D_CORE_PODF        26
#define BM_CBCMR_GPU3D_CORE_PODF        (0x7 << 26)
#define BP_CBCMR_GPU3D_SHADER_PODF      29
#define BM_CBCMR_GPU3D_SHADER_PODF      (0x7 << 29)

#define BP_CSCMR1_PERCLK_PODF           0
#define BM_CSCMR1_PERCLK_PODF           (0x3f << 0)
#define BP_CSCMR1_SSI1_SEL              10
#define BM_CSCMR1_SSI1_SEL              (0x3 << 10)
#define BP_CSCMR1_SSI2_SEL              12
#define BM_CSCMR1_SSI2_SEL              (0x3 << 12)
#define BP_CSCMR1_SSI3_SEL              14
#define BM_CSCMR1_SSI3_SEL              (0x3 << 14)
#define BP_CSCMR1_USDHC1_SEL            16
#define BM_CSCMR1_USDHC1_SEL            (0x1 << 16)
#define BP_CSCMR1_USDHC2_SEL            17
#define BM_CSCMR1_USDHC2_SEL            (0x1 << 17)
#define BP_CSCMR1_USDHC3_SEL            18
#define BM_CSCMR1_USDHC3_SEL            (0x1 << 18)
#define BP_CSCMR1_USDHC4_SEL            19
#define BM_CSCMR1_USDHC4_SEL            (0x1 << 19)
#define BP_CSCMR1_EMI_PODF              20
#define BM_CSCMR1_EMI_PODF              (0x7 << 20)
#define BP_CSCMR1_EMI_SLOW_PODF         23
#define BM_CSCMR1_EMI_SLOW_PODF         (0x7 << 23)
#define BP_CSCMR1_EMI_SEL               27
#define BM_CSCMR1_EMI_SEL               (0x3 << 27)
#define BP_CSCMR1_EMI_SLOW_SEL          29
#define BM_CSCMR1_EMI_SLOW_SEL          (0x3 << 29)

#define BP_CSCMR2_CAN_PODF              2
#define BM_CSCMR2_CAN_PODF              (0x3f << 2)
#define BM_CSCMR2_LDB_DI0_IPU_DIV       (0x1 << 10)
#define BM_CSCMR2_LDB_DI1_IPU_DIV       (0x1 << 11)
#define BP_CSCMR2_ESAI_SEL              19
#define BM_CSCMR2_ESAI_SEL              (0x3 << 19)

#define BP_CSCDR1_UART_PODF             0
#define BM_CSCDR1_UART_PODF             (0x3f << 0)
#define BP_CSCDR1_USDHC1_PODF           11
#define BM_CSCDR1_USDHC1_PODF           (0x7 << 11)
#define BP_CSCDR1_USDHC2_PODF           16
#define BM_CSCDR1_USDHC2_PODF           (0x7 << 16)
#define BP_CSCDR1_USDHC3_PODF           19
#define BM_CSCDR1_USDHC3_PODF           (0x7 << 19)
#define BP_CSCDR1_USDHC4_PODF           22
#define BM_CSCDR1_USDHC4_PODF           (0x7 << 22)
#define BP_CSCDR1_VPU_AXI_PODF          25
#define BM_CSCDR1_VPU_AXI_PODF          (0x7 << 25)

#define BP_CS1CDR_SSI1_PODF             0
#define BM_CS1CDR_SSI1_PODF             (0x3f << 0)
#define BP_CS1CDR_SSI1_PRED             6
#define BM_CS1CDR_SSI1_PRED             (0x7 << 6)
#define BP_CS1CDR_ESAI_PRED             9
#define BM_CS1CDR_ESAI_PRED             (0x7 << 9)
#define BP_CS1CDR_SSI3_PODF             16
#define BM_CS1CDR_SSI3_PODF             (0x3f << 16)
#define BP_CS1CDR_SSI3_PRED             22
#define BM_CS1CDR_SSI3_PRED             (0x7 << 22)
#define BP_CS1CDR_ESAI_PODF             25
#define BM_CS1CDR_ESAI_PODF             (0x7 << 25)

#define BP_CS2CDR_SSI2_PODF             0
#define BM_CS2CDR_SSI2_PODF             (0x3f << 0)
#define BP_CS2CDR_SSI2_PRED             6
#define BM_CS2CDR_SSI2_PRED             (0x7 << 6)
#define BP_CS2CDR_LDB_DI0_SEL           9
#define BM_CS2CDR_LDB_DI0_SEL           (0x7 << 9)
#define BP_CS2CDR_LDB_DI1_SEL           12
#define BM_CS2CDR_LDB_DI1_SEL           (0x7 << 12)
#define BP_CS2CDR_ENFC_SEL              16
#define BM_CS2CDR_ENFC_SEL              (0x3 << 16)
#define BP_CS2CDR_ENFC_PRED             18
#define BM_CS2CDR_ENFC_PRED             (0x7 << 18)
#define BP_CS2CDR_ENFC_PODF             21
#define BM_CS2CDR_ENFC_PODF             (0x3f << 21)

#define BP_CDCDR_ASRC_SERIAL_SEL        7
#define BM_CDCDR_ASRC_SERIAL_SEL        (0x3 << 7)
#define BP_CDCDR_ASRC_SERIAL_PODF       9
#define BM_CDCDR_ASRC_SERIAL_PODF       (0x7 << 9)
#define BP_CDCDR_ASRC_SERIAL_PRED       12
#define BM_CDCDR_ASRC_SERIAL_PRED       (0x7 << 12)
#define BP_CDCDR_SPDIF_SEL              20
#define BM_CDCDR_SPDIF_SEL              (0x3 << 20)
#define BP_CDCDR_SPDIF_PODF             22
#define BM_CDCDR_SPDIF_PODF             (0x7 << 22)
#define BP_CDCDR_SPDIF_PRED             25
#define BM_CDCDR_SPDIF_PRED             (0x7 << 25)
#define BP_CDCDR_HSI_TX_PODF            29
#define BM_CDCDR_HSI_TX_PODF            (0x7 << 29)
#define BP_CDCDR_HSI_TX_SEL             28
#define BM_CDCDR_HSI_TX_SEL             (0x1 << 28)

#define BP_CHSCCDR_IPU1_DI0_SEL         0
#define BM_CHSCCDR_IPU1_DI0_SEL         (0x7 << 0)
#define BP_CHSCCDR_IPU1_DI0_PRE_PODF    3
#define BM_CHSCCDR_IPU1_DI0_PRE_PODF    (0x7 << 3)
#define BP_CHSCCDR_IPU1_DI0_PRE_SEL     6
#define BM_CHSCCDR_IPU1_DI0_PRE_SEL     (0x7 << 6)
#define BP_CHSCCDR_IPU1_DI1_SEL         9
#define BM_CHSCCDR_IPU1_DI1_SEL         (0x7 << 9)
#define BP_CHSCCDR_IPU1_DI1_PRE_PODF    12
#define BM_CHSCCDR_IPU1_DI1_PRE_PODF    (0x7 << 12)
#define BP_CHSCCDR_IPU1_DI1_PRE_SEL     15
#define BM_CHSCCDR_IPU1_DI1_PRE_SEL     (0x7 << 15)

#define BP_CSCDR2_IPU2_DI0_SEL          0
#define BM_CSCDR2_IPU2_DI0_SEL          (0x7)
#define BP_CSCDR2_IPU2_DI0_PRE_PODF     3
#define BM_CSCDR2_IPU2_DI0_PRE_PODF     (0x7 << 3)
#define BP_CSCDR2_IPU2_DI0_PRE_SEL      6
#define BM_CSCDR2_IPU2_DI0_PRE_SEL      (0x7 << 6)
#define BP_CSCDR2_IPU2_DI1_SEL          9
#define BM_CSCDR2_IPU2_DI1_SEL          (0x7 << 9)
#define BP_CSCDR2_IPU2_DI1_PRE_PODF     12
#define BM_CSCDR2_IPU2_DI1_PRE_PODF     (0x7 << 12)
#define BP_CSCDR2_IPU2_DI1_PRE_SEL      15
#define BM_CSCDR2_IPU2_DI1_PRE_SEL      (0x7 << 15)
#define BP_CSCDR2_ECSPI_CLK_PODF        19
#define BM_CSCDR2_ECSPI_CLK_PODF        (0x3f << 19)

#define BP_CSCDR3_IPU1_HSP_SEL          9
#define BM_CSCDR3_IPU1_HSP_SEL          (0x3 << 9)
#define BP_CSCDR3_IPU1_HSP_PODF         11
#define BM_CSCDR3_IPU1_HSP_PODF         (0x7 << 11)
#define BP_CSCDR3_IPU2_HSP_SEL          14
#define BM_CSCDR3_IPU2_HSP_SEL          (0x3 << 14)
#define BP_CSCDR3_IPU2_HSP_PODF         16
#define BM_CSCDR3_IPU2_HSP_PODF         (0x7 << 16)

#define BM_CDHIPR_AXI_PODF_BUSY         (0x1 << 0)
#define BM_CDHIPR_AHB_PODF_BUSY         (0x1 << 1)
#define BM_CDHIPR_MMDC_CH1_PODF_BUSY    (0x1 << 2)
#define BM_CDHIPR_PERIPH2_SEL_BUSY      (0x1 << 3)
#define BM_CDHIPR_MMDC_CH0_PODF_BUSY    (0x1 << 4)
#define BM_CDHIPR_PERIPH_SEL_BUSY       (0x1 << 5)
#define BM_CDHIPR_ARM_PODF_BUSY         (0x1 << 16)

#define BP_CLPCR_LPM                    0
#define BM_CLPCR_LPM                    (0x3 << 0)
#define BM_CLPCR_BYPASS_PMIC_READY      (0x1 << 2)
#define BM_CLPCR_ARM_CLK_DIS_ON_LPM     (0x1 << 5)
#define BM_CLPCR_SBYOS                  (0x1 << 6)
#define BM_CLPCR_DIS_REF_OSC            (0x1 << 7)
#define BM_CLPCR_VSTBY                  (0x1 << 8)
#define BP_CLPCR_STBY_COUNT             9
#define BM_CLPCR_STBY_COUNT             (0x3 << 9)
#define BM_CLPCR_COSC_PWRDOWN           (0x1 << 11)
#define BM_CLPCR_WB_PER_AT_LPM          (0x1 << 16)
#define BM_CLPCR_WB_CORE_AT_LPM         (0x1 << 17)
#define BM_CLPCR_BYP_MMDC_CH0_LPM_HS    (0x1 << 19)
#define BM_CLPCR_BYP_MMDC_CH1_LPM_HS    (0x1 << 21)
#define BM_CLPCR_MASK_CORE0_WFI         (0x1 << 22)
#define BM_CLPCR_MASK_CORE1_WFI         (0x1 << 23)
#define BM_CLPCR_MASK_CORE2_WFI         (0x1 << 24)
#define BM_CLPCR_MASK_CORE3_WFI         (0x1 << 25)
#define BM_CLPCR_MASK_SCU_IDLE          (0x1 << 26)
#define BM_CLPCR_MASK_L2CC_IDLE         (0x1 << 27)

#define FREQ_480M       480000000
#define FREQ_528M       528000000
#define FREQ_594M       594000000
#define FREQ_650M       650000000
#define FREQ_1300M      1300000000

static struct clk pll1_sys;
static struct clk pll2_bus;
static struct clk pll3_usb_otg;
static struct clk pll4_audio;
static struct clk pll5_video;
static struct clk pll6_mlb;
static struct clk pll7_usb_host;
static struct clk pll8_enet;
static struct clk apbh_dma_clk;
static struct clk arm_clk;
static struct clk ipg_clk;
static struct clk ahb_clk;
static struct clk axi_clk;
static struct clk mmdc_ch0_axi_clk;
static struct clk mmdc_ch1_axi_clk;
static struct clk periph_clk;
static struct clk periph_pre_clk;
static struct clk periph_clk2_clk;
static struct clk periph2_clk;
static struct clk periph2_pre_clk;
static struct clk periph2_clk2_clk;
static struct clk gpu2d_core_clk;
static struct clk gpu3d_core_clk;
static struct clk gpu3d_shader_clk;
static struct clk ipg_perclk;
static struct clk emi_clk;
static struct clk emi_slow_clk;
static struct clk can1_clk;
static struct clk uart_clk;
static struct clk usdhc1_clk;
static struct clk usdhc2_clk;
static struct clk usdhc3_clk;
static struct clk usdhc4_clk;
static struct clk vpu_clk;
static struct clk hsi_tx_clk;
static struct clk ipu1_di0_pre_clk;
static struct clk ipu1_di1_pre_clk;
static struct clk ipu2_di0_pre_clk;
static struct clk ipu2_di1_pre_clk;
static struct clk ipu1_clk;
static struct clk ipu2_clk;
static struct clk ssi1_clk;
static struct clk ssi3_clk;
static struct clk esai_clk;
static struct clk ssi2_clk;
static struct clk spdif_clk;
static struct clk asrc_serial_clk;
static struct clk gpu2d_axi_clk;
static struct clk gpu3d_axi_clk;
static struct clk pcie_clk;
static struct clk vdo_axi_clk;
static struct clk ldb_di0_clk;
static struct clk ldb_di1_clk;
static struct clk ipu1_di0_clk;
static struct clk ipu1_di1_clk;
static struct clk ipu2_di0_clk;
static struct clk ipu2_di1_clk;
static struct clk enfc_clk;
static struct clk dummy_clk = {};

static unsigned long external_high_reference;
static unsigned long external_low_reference;
static unsigned long oscillator_reference;

static unsigned long get_oscillator_reference_clock_rate(struct clk *clk)
{
        return oscillator_reference;
}

static unsigned long get_high_reference_clock_rate(struct clk *clk)
{
        return external_high_reference;
}

static unsigned long get_low_reference_clock_rate(struct clk *clk)
{
        return external_low_reference;
}

static struct clk ckil_clk = {
        .get_rate = get_low_reference_clock_rate,
};

static struct clk ckih_clk = {
        .get_rate = get_high_reference_clock_rate,
};

static struct clk osc_clk = {
        .get_rate = get_oscillator_reference_clock_rate,
};

static inline void __iomem *pll_get_reg_addr(struct clk *pll)
{
        if (pll == &pll1_sys)
                return PLL1_SYS;
        else if (pll == &pll2_bus)
                return PLL2_BUS;
        else if (pll == &pll3_usb_otg)
                return PLL3_USB_OTG;
        else if (pll == &pll4_audio)
                return PLL4_AUDIO;
        else if (pll == &pll5_video)
                return PLL5_VIDEO;
        else if (pll == &pll6_mlb)
                return PLL6_MLB;
        else if (pll == &pll7_usb_host)
                return PLL7_USB_HOST;
        else if (pll == &pll8_enet)
                return PLL8_ENET;
        else
                BUG();

        return NULL;
}

static int pll_enable(struct clk *clk)
{
        int timeout = 0x100000;
        void __iomem *reg;
        u32 val;

        reg = pll_get_reg_addr(clk);
        val = readl_relaxed(reg);
        val &= ~BM_PLL_BYPASS;
        val &= ~BM_PLL_POWER_DOWN;
        /* 480MHz PLLs have the opposite definition for power bit */
        if (clk == &pll3_usb_otg || clk == &pll7_usb_host)
                val |= BM_PLL_POWER_DOWN;
        writel_relaxed(val, reg);

        /* Wait for PLL to lock */
        while (!(readl_relaxed(reg) & BM_PLL_LOCK) && --timeout)
                cpu_relax();

        if (unlikely(!timeout))
                return -EBUSY;

        /* Enable the PLL output now */
        val = readl_relaxed(reg);
        val |= BM_PLL_ENABLE;
        writel_relaxed(val, reg);

        return 0;
}

static void pll_disable(struct clk *clk)
{
        void __iomem *reg;
        u32 val;

        reg = pll_get_reg_addr(clk);
        val = readl_relaxed(reg);
        val &= ~BM_PLL_ENABLE;
        val |= BM_PLL_BYPASS;
        val |= BM_PLL_POWER_DOWN;
        if (clk == &pll3_usb_otg || clk == &pll7_usb_host)
                val &= ~BM_PLL_POWER_DOWN;
        writel_relaxed(val, reg);
}

static unsigned long pll1_sys_get_rate(struct clk *clk)
{
        u32 div = (readl_relaxed(PLL1_SYS) & BM_PLL_SYS_DIV_SELECT) >>
                  BP_PLL_SYS_DIV_SELECT;

        return clk_get_rate(clk->parent) * div / 2;
}

static int pll1_sys_set_rate(struct clk *clk, unsigned long rate)
{
        u32 val, div;

        if (rate < FREQ_650M || rate > FREQ_1300M)
                return -EINVAL;

        div = rate * 2 / clk_get_rate(clk->parent);
        val = readl_relaxed(PLL1_SYS);
        val &= ~BM_PLL_SYS_DIV_SELECT;
        val |= div << BP_PLL_SYS_DIV_SELECT;
        writel_relaxed(val, PLL1_SYS);

        return 0;
}

static unsigned long pll8_enet_get_rate(struct clk *clk)
{
        u32 div = (readl_relaxed(PLL8_ENET) & BM_PLL_ENET_DIV_SELECT) >>
                  BP_PLL_ENET_DIV_SELECT;

        switch (div) {
        case 0:
                return 25000000;
        case 1:
                return 50000000;
        case 2:
                return 100000000;
        case 3:
                return 125000000;
        }

        return 0;
}

static int pll8_enet_set_rate(struct clk *clk, unsigned long rate)
{
        u32 val, div;

        switch (rate) {
        case 25000000:
                div = 0;
                break;
        case 50000000:
                div = 1;
                break;
        case 100000000:
                div = 2;
                break;
        case 125000000:
                div = 3;
                break;
        default:
                return -EINVAL;
        }

        val = readl_relaxed(PLL8_ENET);
        val &= ~BM_PLL_ENET_DIV_SELECT;
        val |= div << BP_PLL_ENET_DIV_SELECT;
        writel_relaxed(val, PLL8_ENET);

        return 0;
}

static unsigned long pll_av_get_rate(struct clk *clk)
{
        void __iomem *reg = (clk == &pll4_audio) ? PLL4_AUDIO : PLL5_VIDEO;
        unsigned long parent_rate = clk_get_rate(clk->parent);
        u32 mfn = readl_relaxed(reg + PLL_NUM_OFFSET);
        u32 mfd = readl_relaxed(reg + PLL_DENOM_OFFSET);
        u32 div = (readl_relaxed(reg) & BM_PLL_AV_DIV_SELECT) >>
                  BP_PLL_AV_DIV_SELECT;

        return (parent_rate * div) + ((parent_rate / mfd) * mfn);
}

static int pll_av_set_rate(struct clk *clk, unsigned long rate)
{
        void __iomem *reg = (clk == &pll4_audio) ? PLL4_AUDIO : PLL5_VIDEO;
        unsigned int parent_rate = clk_get_rate(clk->parent);
        u32 val, div;
        u32 mfn, mfd = 1000000;
        s64 temp64;

        if (rate < FREQ_650M || rate > FREQ_1300M)
                return -EINVAL;

        div = rate / parent_rate;
        temp64 = (u64) (rate - div * parent_rate);
        temp64 *= mfd;
        do_div(temp64, parent_rate);
        mfn = temp64;

        val = readl_relaxed(reg);
        val &= ~BM_PLL_AV_DIV_SELECT;
        val |= div << BP_PLL_AV_DIV_SELECT;
        writel_relaxed(val, reg);
        writel_relaxed(mfn, reg + PLL_NUM_OFFSET);
        writel_relaxed(mfd, reg + PLL_DENOM_OFFSET);

        return 0;
}

static void __iomem *pll_get_div_reg_bit(struct clk *clk, u32 *bp, u32 *bm)
{
        void __iomem *reg;

        if (clk == &pll2_bus) {
                reg = PLL2_BUS;
                *bp = BP_PLL_BUS_DIV_SELECT;
                *bm = BM_PLL_BUS_DIV_SELECT;
        } else if (clk == &pll3_usb_otg) {
                reg = PLL3_USB_OTG;
                *bp = BP_PLL_USB_DIV_SELECT;
                *bm = BM_PLL_USB_DIV_SELECT;
        } else if (clk == &pll7_usb_host) {
                reg = PLL7_USB_HOST;
                *bp = BP_PLL_USB_DIV_SELECT;
                *bm = BM_PLL_USB_DIV_SELECT;
        } else {
                BUG();
        }

        return reg;
}

static unsigned long pll_get_rate(struct clk *clk)
{
        void __iomem *reg;
        u32 div, bp, bm;

        reg = pll_get_div_reg_bit(clk, &bp, &bm);
        div = (readl_relaxed(reg) & bm) >> bp;

        return (div == 1) ? clk_get_rate(clk->parent) * 22 :
                            clk_get_rate(clk->parent) * 20;
}

static int pll_set_rate(struct clk *clk, unsigned long rate)
{
        void __iomem *reg;
        u32 val, div, bp, bm;

        if (rate == FREQ_528M)
                div = 1;
        else if (rate == FREQ_480M)
                div = 0;
        else
                return -EINVAL;

        reg = pll_get_div_reg_bit(clk, &bp, &bm);
        val = readl_relaxed(reg);
        val &= ~bm;
        val |= div << bp;
        writel_relaxed(val, reg);

        return 0;
}

#define pll2_bus_get_rate       pll_get_rate
#define pll2_bus_set_rate       pll_set_rate
#define pll3_usb_otg_get_rate   pll_get_rate
#define pll3_usb_otg_set_rate   pll_set_rate
#define pll7_usb_host_get_rate  pll_get_rate
#define pll7_usb_host_set_rate  pll_set_rate
#define pll4_audio_get_rate     pll_av_get_rate
#define pll4_audio_set_rate     pll_av_set_rate
#define pll5_video_get_rate     pll_av_get_rate
#define pll5_video_set_rate     pll_av_set_rate
#define pll6_mlb_get_rate       NULL
#define pll6_mlb_set_rate       NULL

#define DEF_PLL(name)                                   \
        static struct clk name = {                      \
                .enable         = pll_enable,           \
                .disable        = pll_disable,          \
                .get_rate       = name##_get_rate,      \
                .set_rate       = name##_set_rate,      \
                .parent         = &osc_clk,             \
        }

DEF_PLL(pll1_sys);
DEF_PLL(pll2_bus);
DEF_PLL(pll3_usb_otg);
DEF_PLL(pll4_audio);
DEF_PLL(pll5_video);
DEF_PLL(pll6_mlb);
DEF_PLL(pll7_usb_host);
DEF_PLL(pll8_enet);

static unsigned long pfd_get_rate(struct clk *clk)
{
        u64 tmp = (u64) clk_get_rate(clk->parent) * 18;
        u32 frac, bp_frac;

        if (apbh_dma_clk.usecount == 0)
                apbh_dma_clk.enable(&apbh_dma_clk);

        bp_frac = clk->enable_shift - 7;
        frac = readl_relaxed(clk->enable_reg) >> bp_frac & PFD_FRAC_MASK;
        do_div(tmp, frac);

        return tmp;
}

static int pfd_set_rate(struct clk *clk, unsigned long rate)
{
        u32 val, frac, bp_frac;
        u64 tmp = (u64) clk_get_rate(clk->parent) * 18;

        if (apbh_dma_clk.usecount == 0)
                apbh_dma_clk.enable(&apbh_dma_clk);

        /*
         * Round up the divider so that we don't set a rate
         * higher than what is requested
         */
        tmp += rate / 2;
        do_div(tmp, rate);
        frac = tmp;
        frac = (frac < 12) ? 12 : frac;
        frac = (frac > 35) ? 35 : frac;

        /*
         * The frac field always starts from 7 bits lower
         * position of enable bit
         */
        bp_frac = clk->enable_shift - 7;
        val = readl_relaxed(clk->enable_reg);
        val &= ~(PFD_FRAC_MASK << bp_frac);
        val |= frac << bp_frac;
        writel_relaxed(val, clk->enable_reg);

        tmp = (u64) clk_get_rate(clk->parent) * 18;
        do_div(tmp, frac);

        if (apbh_dma_clk.usecount == 0)
                apbh_dma_clk.disable(&apbh_dma_clk);

        return 0;
}

static unsigned long pfd_round_rate(struct clk *clk, unsigned long rate)
{
        u32 frac;
        u64 tmp;

        tmp = (u64) clk_get_rate(clk->parent) * 18;
        tmp += rate / 2;
        do_div(tmp, rate);
        frac = tmp;
        frac = (frac < 12) ? 12 : frac;
        frac = (frac > 35) ? 35 : frac;
        tmp = (u64) clk_get_rate(clk->parent) * 18;
        do_div(tmp, frac);

        return tmp;
}

static int pfd_enable(struct clk *clk)
{
        u32 val;

        if (apbh_dma_clk.usecount == 0)
                apbh_dma_clk.enable(&apbh_dma_clk);

        val = readl_relaxed(clk->enable_reg);
        val &= ~(1 << clk->enable_shift);
        writel_relaxed(val, clk->enable_reg);

        if (apbh_dma_clk.usecount == 0)
                apbh_dma_clk.disable(&apbh_dma_clk);

        return 0;
}

static void pfd_disable(struct clk *clk)
{
        u32 val;

        if (apbh_dma_clk.usecount == 0)
                apbh_dma_clk.enable(&apbh_dma_clk);

        val = readl_relaxed(clk->enable_reg);
        val |= 1 << clk->enable_shift;
        writel_relaxed(val, clk->enable_reg);

        if (apbh_dma_clk.usecount == 0)
                apbh_dma_clk.disable(&apbh_dma_clk);
}

#define DEF_PFD(name, er, es, p)                        \
        static struct clk name = {                      \
                .enable_reg     = er,                   \
                .enable_shift   = es,                   \
                .enable         = pfd_enable,           \
                .disable        = pfd_disable,          \
                .get_rate       = pfd_get_rate,         \
                .set_rate       = pfd_set_rate,         \
                .round_rate     = pfd_round_rate,       \
                .parent         = p,                    \
        }

DEF_PFD(pll2_pfd_352m, PFD_528, PFD0, &pll2_bus);
DEF_PFD(pll2_pfd_594m, PFD_528, PFD1, &pll2_bus);
DEF_PFD(pll2_pfd_400m, PFD_528, PFD2, &pll2_bus);
DEF_PFD(pll3_pfd_720m, PFD_480, PFD0, &pll3_usb_otg);
DEF_PFD(pll3_pfd_540m, PFD_480, PFD1, &pll3_usb_otg);
DEF_PFD(pll3_pfd_508m, PFD_480, PFD2, &pll3_usb_otg);
DEF_PFD(pll3_pfd_454m, PFD_480, PFD3, &pll3_usb_otg);

static unsigned long twd_clk_get_rate(struct clk *clk)
{
        return clk_get_rate(clk->parent) / 2;
}

static struct clk twd_clk = {
        .parent = &arm_clk,
        .get_rate = twd_clk_get_rate,
};

static unsigned long pll2_200m_get_rate(struct clk *clk)
{
        return clk_get_rate(clk->parent) / 2;
}

static struct clk pll2_200m = {
        .parent = &pll2_pfd_400m,
        .get_rate = pll2_200m_get_rate,
};

static unsigned long pll3_120m_get_rate(struct clk *clk)
{
        return clk_get_rate(clk->parent) / 4;
}

static struct clk pll3_120m = {
        .parent = &pll3_usb_otg,
        .get_rate = pll3_120m_get_rate,
};

static unsigned long pll3_80m_get_rate(struct clk *clk)
{
        return clk_get_rate(clk->parent) / 6;
}

static struct clk pll3_80m = {
        .parent = &pll3_usb_otg,
        .get_rate = pll3_80m_get_rate,
};

static unsigned long pll3_60m_get_rate(struct clk *clk)
{
        return clk_get_rate(clk->parent) / 8;
}

static struct clk pll3_60m = {
        .parent = &pll3_usb_otg,
        .get_rate = pll3_60m_get_rate,
};

static int pll1_sw_clk_set_parent(struct clk *clk, struct clk *parent)
{
        u32 val = readl_relaxed(CCSR);

        if (parent == &pll1_sys) {
                val &= ~BM_CCSR_PLL1_SW_SEL;
                val &= ~BM_CCSR_STEP_SEL;
        } else if (parent == &osc_clk) {
                val |= BM_CCSR_PLL1_SW_SEL;
                val &= ~BM_CCSR_STEP_SEL;
        } else if (parent == &pll2_pfd_400m) {
                val |= BM_CCSR_PLL1_SW_SEL;
                val |= BM_CCSR_STEP_SEL;
        } else {
                return -EINVAL;
        }

        writel_relaxed(val, CCSR);

        return 0;
}

static struct clk pll1_sw_clk = {
        .parent = &pll1_sys,
        .set_parent = pll1_sw_clk_set_parent,
};

static void calc_pred_podf_dividers(u32 div, u32 *pred, u32 *podf)
{
        u32 min_pred, temp_pred, old_err, err;

        if (div >= 512) {
                *pred = 8;
                *podf = 64;
        } else if (div >= 8) {
                min_pred = (div - 1) / 64 + 1;
                old_err = 8;
                for (temp_pred = 8; temp_pred >= min_pred; temp_pred--) {
                        err = div % temp_pred;
                        if (err == 0) {
                                *pred = temp_pred;
                                break;
                        }
                        err = temp_pred - err;
                        if (err < old_err) {
                                old_err = err;
                                *pred = temp_pred;
                        }
                }
                *podf = (div + *pred - 1) / *pred;
        } else if (div < 8) {
                *pred = div;
                *podf = 1;
        }
}

static int _clk_enable(struct clk *clk)
{
        u32 reg;
        reg = readl_relaxed(clk->enable_reg);
        reg |= 0x3 << clk->enable_shift;
        writel_relaxed(reg, clk->enable_reg);

        return 0;
}

static void _clk_disable(struct clk *clk)
{
        u32 reg;
        reg = readl_relaxed(clk->enable_reg);
        reg &= ~(0x3 << clk->enable_shift);
        writel_relaxed(reg, clk->enable_reg);
}

struct divider {
        struct clk *clk;
        void __iomem *reg;
        u32 bp_pred;
        u32 bm_pred;
        u32 bp_podf;
        u32 bm_podf;
};

#define DEF_CLK_DIV1(d, c, r, b)                                \
        static struct divider d = {                             \
                .clk = c,                                       \
                .reg = r,                                       \
                .bp_podf = BP_##r##_##b##_PODF,                 \
                .bm_podf = BM_##r##_##b##_PODF,                 \
        }

DEF_CLK_DIV1(arm_div,           &arm_clk,               CACRR,  ARM);
DEF_CLK_DIV1(ipg_div,           &ipg_clk,               CBCDR,  IPG);
DEF_CLK_DIV1(ahb_div,           &ahb_clk,               CBCDR,  AHB);
DEF_CLK_DIV1(axi_div,           &axi_clk,               CBCDR,  AXI);
DEF_CLK_DIV1(mmdc_ch0_axi_div,  &mmdc_ch0_axi_clk,      CBCDR,  MMDC_CH0_AXI);
DEF_CLK_DIV1(mmdc_ch1_axi_div,  &mmdc_ch1_axi_clk,      CBCDR,  MMDC_CH1_AXI);
DEF_CLK_DIV1(periph_clk2_div,   &periph_clk2_clk,       CBCDR,  PERIPH_CLK2);
DEF_CLK_DIV1(periph2_clk2_div,  &periph2_clk2_clk,      CBCDR,  PERIPH2_CLK2);
DEF_CLK_DIV1(gpu2d_core_div,    &gpu2d_core_clk,        CBCMR,  GPU2D_CORE);
DEF_CLK_DIV1(gpu3d_core_div,    &gpu3d_core_clk,        CBCMR,  GPU3D_CORE);
DEF_CLK_DIV1(gpu3d_shader_div,  &gpu3d_shader_clk,      CBCMR,  GPU3D_SHADER);
DEF_CLK_DIV1(ipg_perclk_div,    &ipg_perclk,            CSCMR1, PERCLK);
DEF_CLK_DIV1(emi_div,           &emi_clk,               CSCMR1, EMI);
DEF_CLK_DIV1(emi_slow_div,      &emi_slow_clk,          CSCMR1, EMI_SLOW);
DEF_CLK_DIV1(can_div,           &can1_clk,              CSCMR2, CAN);
DEF_CLK_DIV1(uart_div,          &uart_clk,              CSCDR1, UART);
DEF_CLK_DIV1(usdhc1_div,        &usdhc1_clk,            CSCDR1, USDHC1);
DEF_CLK_DIV1(usdhc2_div,        &usdhc2_clk,            CSCDR1, USDHC2);
DEF_CLK_DIV1(usdhc3_div,        &usdhc3_clk,            CSCDR1, USDHC3);
DEF_CLK_DIV1(usdhc4_div,        &usdhc4_clk,            CSCDR1, USDHC4);
DEF_CLK_DIV1(vpu_div,           &vpu_clk,               CSCDR1, VPU_AXI);
DEF_CLK_DIV1(hsi_tx_div,        &hsi_tx_clk,            CDCDR,  HSI_TX);
DEF_CLK_DIV1(ipu1_di0_pre_div,  &ipu1_di0_pre_clk,      CHSCCDR, IPU1_DI0_PRE);
DEF_CLK_DIV1(ipu1_di1_pre_div,  &ipu1_di1_pre_clk,      CHSCCDR, IPU1_DI1_PRE);
DEF_CLK_DIV1(ipu2_di0_pre_div,  &ipu2_di0_pre_clk,      CSCDR2, IPU2_DI0_PRE);
DEF_CLK_DIV1(ipu2_di1_pre_div,  &ipu2_di1_pre_clk,      CSCDR2, IPU2_DI1_PRE);
DEF_CLK_DIV1(ipu1_div,          &ipu1_clk,              CSCDR3, IPU1_HSP);
DEF_CLK_DIV1(ipu2_div,          &ipu2_clk,              CSCDR3, IPU2_HSP);

#define DEF_CLK_DIV2(d, c, r, b)                                \
        static struct divider d = {                             \
                .clk = c,                                       \
                .reg = r,                                       \
                .bp_pred = BP_##r##_##b##_PRED,                 \
                .bm_pred = BM_##r##_##b##_PRED,                 \
                .bp_podf = BP_##r##_##b##_PODF,                 \
                .bm_podf = BM_##r##_##b##_PODF,                 \
        }

DEF_CLK_DIV2(ssi1_div,          &ssi1_clk,              CS1CDR, SSI1);
DEF_CLK_DIV2(ssi3_div,          &ssi3_clk,              CS1CDR, SSI3);
DEF_CLK_DIV2(esai_div,          &esai_clk,              CS1CDR, ESAI);
DEF_CLK_DIV2(ssi2_div,          &ssi2_clk,              CS2CDR, SSI2);
DEF_CLK_DIV2(enfc_div,          &enfc_clk,              CS2CDR, ENFC);
DEF_CLK_DIV2(spdif_div,         &spdif_clk,             CDCDR,  SPDIF);
DEF_CLK_DIV2(asrc_serial_div,   &asrc_serial_clk,       CDCDR,  ASRC_SERIAL);

static struct divider *dividers[] = {
        &arm_div,
        &ipg_div,
        &ahb_div,
        &axi_div,
        &mmdc_ch0_axi_div,
        &mmdc_ch1_axi_div,
        &periph_clk2_div,
        &periph2_clk2_div,
        &gpu2d_core_div,
        &gpu3d_core_div,
        &gpu3d_shader_div,
        &ipg_perclk_div,
        &emi_div,
        &emi_slow_div,
        &can_div,
        &uart_div,
        &usdhc1_div,
        &usdhc2_div,
        &usdhc3_div,
        &usdhc4_div,
        &vpu_div,
        &hsi_tx_div,
        &ipu1_di0_pre_div,
        &ipu1_di1_pre_div,
        &ipu2_di0_pre_div,
        &ipu2_di1_pre_div,
        &ipu1_div,
        &ipu2_div,
        &ssi1_div,
        &ssi3_div,
        &esai_div,
        &ssi2_div,
        &enfc_div,
        &spdif_div,
        &asrc_serial_div,
};

static unsigned long ldb_di_clk_get_rate(struct clk *clk)
{
        u32 val = readl_relaxed(CSCMR2);

        val &= (clk == &ldb_di0_clk) ? BM_CSCMR2_LDB_DI0_IPU_DIV :
                                       BM_CSCMR2_LDB_DI1_IPU_DIV;
        if (val)
                return clk_get_rate(clk->parent) / 7;
        else
                return clk_get_rate(clk->parent) * 2 / 7;
}

static int ldb_di_clk_set_rate(struct clk *clk, unsigned long rate)
{
        unsigned long parent_rate = clk_get_rate(clk->parent);
        u32 val = readl_relaxed(CSCMR2);

        if (rate * 7 <= parent_rate + parent_rate / 20)
                val |= BM_CSCMR2_LDB_DI0_IPU_DIV;
        else
                val &= ~BM_CSCMR2_LDB_DI0_IPU_DIV;

        writel_relaxed(val, CSCMR2);

        return 0;
}

static unsigned long ldb_di_clk_round_rate(struct clk *clk, unsigned long rate)
{
        unsigned long parent_rate = clk_get_rate(clk->parent);

        if (rate * 7 <= parent_rate + parent_rate / 20)
                return parent_rate / 7;
        else
                return 2 * parent_rate / 7;
}

static unsigned long _clk_get_rate(struct clk *clk)
{
        struct divider *d;
        u32 val, pred, podf;
        int i, num;

        if (clk == &ldb_di0_clk || clk == &ldb_di1_clk)
                return ldb_di_clk_get_rate(clk);

        num = ARRAY_SIZE(dividers);
        for (i = 0; i < num; i++)
                if (dividers[i]->clk == clk) {
                        d = dividers[i];
                        break;
                }
        if (i == num)
                return clk_get_rate(clk->parent);

        val = readl_relaxed(d->reg);
        pred = ((val & d->bm_pred) >> d->bp_pred) + 1;
        podf = ((val & d->bm_podf) >> d->bp_podf) + 1;

        return clk_get_rate(clk->parent) / (pred * podf);
}

static int clk_busy_wait(struct clk *clk)
{
        int timeout = 0x100000;
        u32 bm;

        if (clk == &axi_clk)
                bm = BM_CDHIPR_AXI_PODF_BUSY;
        else if (clk == &ahb_clk)
                bm = BM_CDHIPR_AHB_PODF_BUSY;
        else if (clk == &mmdc_ch0_axi_clk)
                bm = BM_CDHIPR_MMDC_CH0_PODF_BUSY;
        else if (clk == &periph_clk)
                bm = BM_CDHIPR_PERIPH_SEL_BUSY;
        else if (clk == &arm_clk)
                bm = BM_CDHIPR_ARM_PODF_BUSY;
        else
                return -EINVAL;

        while ((readl_relaxed(CDHIPR) & bm) && --timeout)
                cpu_relax();

        if (unlikely(!timeout))
                return -EBUSY;

        return 0;
}

static int _clk_set_rate(struct clk *clk, unsigned long rate)
{
        unsigned long parent_rate = clk_get_rate(clk->parent);
        struct divider *d;
        u32 val, div, max_div, pred = 0, podf;
        int i, num;

        if (clk == &ldb_di0_clk || clk == &ldb_di1_clk)
                return ldb_di_clk_set_rate(clk, rate);

        num = ARRAY_SIZE(dividers);
        for (i = 0; i < num; i++)
                if (dividers[i]->clk == clk) {
                        d = dividers[i];
                        break;
                }
        if (i == num)
                return -EINVAL;

        max_div = ((d->bm_pred >> d->bp_pred) + 1) *
                  ((d->bm_podf >> d->bp_podf) + 1);

        div = parent_rate / rate;
        if (div == 0)
                div++;

        if ((parent_rate / div != rate) || div > max_div)
                return -EINVAL;

        if (d->bm_pred) {
                calc_pred_podf_dividers(div, &pred, &podf);
        } else {
                pred = 1;
                podf = div;
        }

        val = readl_relaxed(d->reg);
        val &= ~(d->bm_pred | d->bm_podf);
        val |= (pred - 1) << d->bp_pred | (podf - 1) << d->bp_podf;
        writel_relaxed(val, d->reg);

        if (clk == &axi_clk || clk == &ahb_clk ||
            clk == &mmdc_ch0_axi_clk || clk == &arm_clk)
                return clk_busy_wait(clk);

        return 0;
}

static unsigned long _clk_round_rate(struct clk *clk, unsigned long rate)
{
        unsigned long parent_rate = clk_get_rate(clk->parent);
        u32 div = parent_rate / rate;
        u32 div_max, pred = 0, podf;
        struct divider *d;
        int i, num;

        if (clk == &ldb_di0_clk || clk == &ldb_di1_clk)
                return ldb_di_clk_round_rate(clk, rate);

        num = ARRAY_SIZE(dividers);
        for (i = 0; i < num; i++)
                if (dividers[i]->clk == clk) {
                        d = dividers[i];
                        break;
                }
        if (i == num)
                return -EINVAL;

        if (div == 0 || parent_rate % rate)
                div++;

        if (d->bm_pred) {
                calc_pred_podf_dividers(div, &pred, &podf);
                div = pred * podf;
        } else {
                div_max = (d->bm_podf >> d->bp_podf) + 1;
                if (div > div_max)
                        div = div_max;
        }

        return parent_rate / div;
}

struct multiplexer {
        struct clk *clk;
        void __iomem *reg;
        u32 bp;
        u32 bm;
        int pnum;
        struct clk *parents[];
};

static struct multiplexer axi_mux = {
        .clk = &axi_clk,
        .reg = CBCDR,
        .bp = BP_CBCDR_AXI_SEL,
        .bm = BM_CBCDR_AXI_SEL,
        .parents = {
                &periph_clk,
                &pll2_pfd_400m,
                &pll3_pfd_540m,
                NULL
        },
};

static struct multiplexer periph_mux = {
        .clk = &periph_clk,
        .reg = CBCDR,
        .bp = BP_CBCDR_PERIPH_CLK_SEL,
        .bm = BM_CBCDR_PERIPH_CLK_SEL,
        .parents = {
                &periph_pre_clk,
                &periph_clk2_clk,
                NULL
        },
};

static struct multiplexer periph_pre_mux = {
        .clk = &periph_pre_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_PRE_PERIPH_CLK_SEL,
        .bm = BM_CBCMR_PRE_PERIPH_CLK_SEL,
        .parents = {
                &pll2_bus,
                &pll2_pfd_400m,
                &pll2_pfd_352m,
                &pll2_200m,
                NULL
        },
};

static struct multiplexer periph_clk2_mux = {
        .clk = &periph_clk2_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_PERIPH_CLK2_SEL,
        .bm = BM_CBCMR_PERIPH_CLK2_SEL,
        .parents = {
                &pll3_usb_otg,
                &osc_clk,
                NULL
        },
};

static struct multiplexer periph2_mux = {
        .clk = &periph2_clk,
        .reg = CBCDR,
        .bp = BP_CBCDR_PERIPH2_CLK_SEL,
        .bm = BM_CBCDR_PERIPH2_CLK_SEL,
        .parents = {
                &periph2_pre_clk,
                &periph2_clk2_clk,
                NULL
        },
};

static struct multiplexer periph2_pre_mux = {
        .clk = &periph2_pre_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_PRE_PERIPH2_CLK_SEL,
        .bm = BM_CBCMR_PRE_PERIPH2_CLK_SEL,
        .parents = {
                &pll2_bus,
                &pll2_pfd_400m,
                &pll2_pfd_352m,
                &pll2_200m,
                NULL
        },
};

static struct multiplexer periph2_clk2_mux = {
        .clk = &periph2_clk2_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_PERIPH2_CLK2_SEL,
        .bm = BM_CBCMR_PERIPH2_CLK2_SEL,
        .parents = {
                &pll3_usb_otg,
                &osc_clk,
                NULL
        },
};

static struct multiplexer gpu2d_axi_mux = {
        .clk = &gpu2d_axi_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_GPU2D_AXI_SEL,
        .bm = BM_CBCMR_GPU2D_AXI_SEL,
        .parents = {
                &axi_clk,
                &ahb_clk,
                NULL
        },
};

static struct multiplexer gpu3d_axi_mux = {
        .clk = &gpu3d_axi_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_GPU3D_AXI_SEL,
        .bm = BM_CBCMR_GPU3D_AXI_SEL,
        .parents = {
                &axi_clk,
                &ahb_clk,
                NULL
        },
};

static struct multiplexer gpu3d_core_mux = {
        .clk = &gpu3d_core_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_GPU3D_CORE_SEL,
        .bm = BM_CBCMR_GPU3D_CORE_SEL,
        .parents = {
                &mmdc_ch0_axi_clk,
                &pll3_usb_otg,
                &pll2_pfd_594m,
                &pll2_pfd_400m,
                NULL
        },
};

static struct multiplexer gpu3d_shader_mux = {
        .clk = &gpu3d_shader_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_GPU3D_SHADER_SEL,
        .bm = BM_CBCMR_GPU3D_SHADER_SEL,
        .parents = {
                &mmdc_ch0_axi_clk,
                &pll3_usb_otg,
                &pll2_pfd_594m,
                &pll3_pfd_720m,
                NULL
        },
};

static struct multiplexer pcie_axi_mux = {
        .clk = &pcie_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_PCIE_AXI_SEL,
        .bm = BM_CBCMR_PCIE_AXI_SEL,
        .parents = {
                &axi_clk,
                &ahb_clk,
                NULL
        },
};

static struct multiplexer vdo_axi_mux = {
        .clk = &vdo_axi_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_VDO_AXI_SEL,
        .bm = BM_CBCMR_VDO_AXI_SEL,
        .parents = {
                &axi_clk,
                &ahb_clk,
                NULL
        },
};

static struct multiplexer vpu_axi_mux = {
        .clk = &vpu_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_VPU_AXI_SEL,
        .bm = BM_CBCMR_VPU_AXI_SEL,
        .parents = {
                &axi_clk,
                &pll2_pfd_400m,
                &pll2_pfd_352m,
                NULL
        },
};

static struct multiplexer gpu2d_core_mux = {
        .clk = &gpu2d_core_clk,
        .reg = CBCMR,
        .bp = BP_CBCMR_GPU2D_CORE_SEL,
        .bm = BM_CBCMR_GPU2D_CORE_SEL,
        .parents = {
                &axi_clk,
                &pll3_usb_otg,
                &pll2_pfd_352m,
                &pll2_pfd_400m,
                NULL
        },
};

#define DEF_SSI_MUX(id)                                                 \
        static struct multiplexer ssi##id##_mux = {                     \
                .clk = &ssi##id##_clk,                                  \
                .reg = CSCMR1,                                          \
                .bp = BP_CSCMR1_SSI##id##_SEL,                          \
                .bm = BM_CSCMR1_SSI##id##_SEL,                          \
                .parents = {                                            \
                        &pll3_pfd_508m,                                 \
                        &pll3_pfd_454m,                                 \
                        &pll4_audio,                                    \
                        NULL                                            \
                },                                                      \
        }

DEF_SSI_MUX(1);
DEF_SSI_MUX(2);
DEF_SSI_MUX(3);

#define DEF_USDHC_MUX(id)                                               \
        static struct multiplexer usdhc##id##_mux = {                   \
                .clk = &usdhc##id##_clk,                                \
                .reg = CSCMR1,                                          \
                .bp = BP_CSCMR1_USDHC##id##_SEL,                        \
                .bm = BM_CSCMR1_USDHC##id##_SEL,                        \
                .parents = {                                            \
                        &pll2_pfd_400m,                                 \
                        &pll2_pfd_352m,                                 \
                        NULL                                            \
                },                                                      \
        }

DEF_USDHC_MUX(1);
DEF_USDHC_MUX(2);
DEF_USDHC_MUX(3);
DEF_USDHC_MUX(4);

static struct multiplexer emi_mux = {
        .clk = &emi_clk,
        .reg = CSCMR1,
        .bp = BP_CSCMR1_EMI_SEL,
        .bm = BM_CSCMR1_EMI_SEL,
        .parents = {
                &axi_clk,
                &pll3_usb_otg,
                &pll2_pfd_400m,
                &pll2_pfd_352m,
                NULL
        },
};

static struct multiplexer emi_slow_mux = {
        .clk = &emi_slow_clk,
        .reg = CSCMR1,
        .bp = BP_CSCMR1_EMI_SLOW_SEL,
        .bm = BM_CSCMR1_EMI_SLOW_SEL,
        .parents = {
                &axi_clk,
                &pll3_usb_otg,
                &pll2_pfd_400m,
                &pll2_pfd_352m,
                NULL
        },
};

static struct multiplexer esai_mux = {
        .clk = &esai_clk,
        .reg = CSCMR2,
        .bp = BP_CSCMR2_ESAI_SEL,
        .bm = BM_CSCMR2_ESAI_SEL,
        .parents = {
                &pll4_audio,
                &pll3_pfd_508m,
                &pll3_pfd_454m,
                &pll3_usb_otg,
                NULL
        },
};

#define DEF_LDB_DI_MUX(id)                                              \
        static struct multiplexer ldb_di##id##_mux = {                  \
                .clk = &ldb_di##id##_clk,                               \
                .reg = CS2CDR,                                          \
                .bp = BP_CS2CDR_LDB_DI##id##_SEL,                       \
                .bm = BM_CS2CDR_LDB_DI##id##_SEL,                       \
                .parents = {                                            \
                        &pll5_video,                                    \
                        &pll2_pfd_352m,                                 \
                        &pll2_pfd_400m,                                 \
                        &pll3_pfd_540m,                                 \
                        &pll3_usb_otg,                                  \
                        NULL                                            \
                },                                                      \
        }

DEF_LDB_DI_MUX(0);
DEF_LDB_DI_MUX(1);

static struct multiplexer enfc_mux = {
        .clk = &enfc_clk,
        .reg = CS2CDR,
        .bp = BP_CS2CDR_ENFC_SEL,
        .bm = BM_CS2CDR_ENFC_SEL,
        .parents = {
                &pll2_pfd_352m,
                &pll2_bus,
                &pll3_usb_otg,
                &pll2_pfd_400m,
                NULL
        },
};

static struct multiplexer spdif_mux = {
        .clk = &spdif_clk,
        .reg = CDCDR,
        .bp = BP_CDCDR_SPDIF_SEL,
        .bm = BM_CDCDR_SPDIF_SEL,
        .parents = {
                &pll4_audio,
                &pll3_pfd_508m,
                &pll3_pfd_454m,
                &pll3_usb_otg,
                NULL
        },
};

static struct multiplexer asrc_serial_mux = {
        .clk = &asrc_serial_clk,
        .reg = CDCDR,
        .bp = BP_CDCDR_ASRC_SERIAL_SEL,
        .bm = BM_CDCDR_ASRC_SERIAL_SEL,
        .parents = {
                &pll4_audio,
                &pll3_pfd_508m,
                &pll3_pfd_454m,
                &pll3_usb_otg,
                NULL
        },
};

static struct multiplexer hsi_tx_mux = {
        .clk = &hsi_tx_clk,
        .reg = CDCDR,
        .bp = BP_CDCDR_HSI_TX_SEL,
        .bm = BM_CDCDR_HSI_TX_SEL,
        .parents = {
                &pll3_120m,
                &pll2_pfd_400m,
                NULL
        },
};

#define DEF_IPU_DI_PRE_MUX(r, i, d)                                     \
        static struct multiplexer ipu##i##_di##d##_pre_mux = {          \
                .clk = &ipu##i##_di##d##_pre_clk,                       \
                .reg = r,                                               \
                .bp = BP_##r##_IPU##i##_DI##d##_PRE_SEL,                \
                .bm = BM_##r##_IPU##i##_DI##d##_PRE_SEL,                \
                .parents = {                                            \
                        &mmdc_ch0_axi_clk,                              \
                        &pll3_usb_otg,                                  \
                        &pll5_video,                                    \
                        &pll2_pfd_352m,                                 \
                        &pll2_pfd_400m,                                 \
                        &pll3_pfd_540m,                                 \
                        NULL                                            \
                },                                                      \
        }

DEF_IPU_DI_PRE_MUX(CHSCCDR, 1, 0);
DEF_IPU_DI_PRE_MUX(CHSCCDR, 1, 1);
DEF_IPU_DI_PRE_MUX(CSCDR2, 2, 0);
DEF_IPU_DI_PRE_MUX(CSCDR2, 2, 1);

#define DEF_IPU_DI_MUX(r, i, d)                                         \
        static struct multiplexer ipu##i##_di##d##_mux = {              \
                .clk = &ipu##i##_di##d##_clk,                           \
                .reg = r,                                               \
                .bp = BP_##r##_IPU##i##_DI##d##_SEL,                    \
                .bm = BM_##r##_IPU##i##_DI##d##_SEL,                    \
                .parents = {                                            \
                        &ipu##i##_di##d##_pre_clk,                      \
                        &dummy_clk,                                     \
                        &dummy_clk,                                     \
                        &ldb_di0_clk,                                   \
                        &ldb_di1_clk,                                   \
                        NULL                                            \
                },                                                      \
        }

DEF_IPU_DI_MUX(CHSCCDR, 1, 0);
DEF_IPU_DI_MUX(CHSCCDR, 1, 1);
DEF_IPU_DI_MUX(CSCDR2, 2, 0);
DEF_IPU_DI_MUX(CSCDR2, 2, 1);

#define DEF_IPU_MUX(id)                                                 \
        static struct multiplexer ipu##id##_mux = {                     \
                .clk = &ipu##id##_clk,                                  \
                .reg = CSCDR3,                                          \
                .bp = BP_CSCDR3_IPU##id##_HSP_SEL,                      \
                .bm = BM_CSCDR3_IPU##id##_HSP_SEL,                      \
                .parents = {                                            \
                        &mmdc_ch0_axi_clk,                              \
                        &pll2_pfd_400m,                                 \
                        &pll3_120m,                                     \
                        &pll3_pfd_540m,                                 \
                        NULL                                            \
                },                                                      \
        }

DEF_IPU_MUX(1);
DEF_IPU_MUX(2);

static struct multiplexer *multiplexers[] = {
        &axi_mux,
        &periph_mux,
        &periph_pre_mux,
        &periph_clk2_mux,
        &periph2_mux,
        &periph2_pre_mux,
        &periph2_clk2_mux,
        &gpu2d_axi_mux,
        &gpu3d_axi_mux,
        &gpu3d_core_mux,
        &gpu3d_shader_mux,
        &pcie_axi_mux,
        &vdo_axi_mux,
        &vpu_axi_mux,
        &gpu2d_core_mux,
        &ssi1_mux,
        &ssi2_mux,
        &ssi3_mux,
        &usdhc1_mux,
        &usdhc2_mux,
        &usdhc3_mux,
        &usdhc4_mux,
        &emi_mux,
        &emi_slow_mux,
        &esai_mux,
        &ldb_di0_mux,
        &ldb_di1_mux,
        &enfc_mux,
        &spdif_mux,
        &asrc_serial_mux,
        &hsi_tx_mux,
        &ipu1_di0_pre_mux,
        &ipu1_di0_mux,
        &ipu1_di1_pre_mux,
        &ipu1_di1_mux,
        &ipu2_di0_pre_mux,
        &ipu2_di0_mux,
        &ipu2_di1_pre_mux,
        &ipu2_di1_mux,
        &ipu1_mux,
        &ipu2_mux,
};

static int _clk_set_parent(struct clk *clk, struct clk *parent)
{
        struct multiplexer *m;
        int i, num;
        u32 val;

        num = ARRAY_SIZE(multiplexers);
        for (i = 0; i < num; i++)
                if (multiplexers[i]->clk == clk) {
                        m = multiplexers[i];
                        break;
                }
        if (i == num)
                return -EINVAL;

        i = 0;
        while (m->parents[i]) {
                if (parent == m->parents[i])
                        break;
                i++;
        }
        if (!m->parents[i])
                return -EINVAL;

        val = readl_relaxed(m->reg);
        val &= ~m->bm;
        val |= i << m->bp;
        writel_relaxed(val, m->reg);

        if (clk == &periph_clk)
                return clk_busy_wait(clk);

        return 0;
}

#define DEF_NG_CLK(name, p)                             \
        static struct clk name = {                      \
                .get_rate       = _clk_get_rate,        \
                .set_rate       = _clk_set_rate,        \
                .round_rate     = _clk_round_rate,      \
                .set_parent     = _clk_set_parent,      \
                .parent         = p,                    \
        }

DEF_NG_CLK(periph_clk2_clk,     &osc_clk);
DEF_NG_CLK(periph_pre_clk,      &pll2_bus);
DEF_NG_CLK(periph_clk,          &periph_pre_clk);
DEF_NG_CLK(periph2_clk2_clk,    &osc_clk);
DEF_NG_CLK(periph2_pre_clk,     &pll2_bus);
DEF_NG_CLK(periph2_clk,         &periph2_pre_clk);
DEF_NG_CLK(axi_clk,             &periph_clk);
DEF_NG_CLK(emi_clk,             &axi_clk);
DEF_NG_CLK(arm_clk,             &pll1_sw_clk);
DEF_NG_CLK(ahb_clk,             &periph_clk);
DEF_NG_CLK(ipg_clk,             &ahb_clk);
DEF_NG_CLK(ipg_perclk,          &ipg_clk);
DEF_NG_CLK(ipu1_di0_pre_clk,    &pll3_pfd_540m);
DEF_NG_CLK(ipu1_di1_pre_clk,    &pll3_pfd_540m);
DEF_NG_CLK(ipu2_di0_pre_clk,    &pll3_pfd_540m);
DEF_NG_CLK(ipu2_di1_pre_clk,    &pll3_pfd_540m);
DEF_NG_CLK(asrc_serial_clk,     &pll3_usb_otg);

#define DEF_CLK(name, er, es, p, s)                     \
        static struct clk name = {                      \
                .enable_reg     = er,                   \
                .enable_shift   = es,                   \
                .enable         = _clk_enable,          \
                .disable        = _clk_disable,         \
                .get_rate       = _clk_get_rate,        \
                .set_rate       = _clk_set_rate,        \
                .round_rate     = _clk_round_rate,      \
                .set_parent     = _clk_set_parent,      \
                .parent         = p,                    \
                .secondary      = s,                    \
        }

DEF_CLK(aips_tz1_clk,     CCGR0, CG0,  &ahb_clk,          NULL);
DEF_CLK(aips_tz2_clk,     CCGR0, CG1,  &ahb_clk,          NULL);
DEF_CLK(apbh_dma_clk,     CCGR0, CG2,  &ahb_clk,          NULL);
DEF_CLK(asrc_clk,         CCGR0, CG3,  &pll4_audio,       NULL);
DEF_CLK(can1_serial_clk,  CCGR0, CG8,  &pll3_usb_otg,     NULL);
DEF_CLK(can1_clk,         CCGR0, CG7,  &pll3_usb_otg,     &can1_serial_clk);
DEF_CLK(can2_serial_clk,  CCGR0, CG10, &pll3_usb_otg,     NULL);
DEF_CLK(can2_clk,         CCGR0, CG9,  &pll3_usb_otg,     &can2_serial_clk);
DEF_CLK(ecspi1_clk,       CCGR1, CG0,  &pll3_60m,         NULL);
DEF_CLK(ecspi2_clk,       CCGR1, CG1,  &pll3_60m,         NULL);
DEF_CLK(ecspi3_clk,       CCGR1, CG2,  &pll3_60m,         NULL);
DEF_CLK(ecspi4_clk,       CCGR1, CG3,  &pll3_60m,         NULL);
DEF_CLK(ecspi5_clk,       CCGR1, CG4,  &pll3_60m,         NULL);
DEF_CLK(enet_clk,         CCGR1, CG5,  &ipg_clk,          NULL);
DEF_CLK(esai_clk,         CCGR1, CG8,  &pll3_usb_otg,     NULL);
DEF_CLK(gpt_serial_clk,   CCGR1, CG11, &ipg_perclk,       NULL);
DEF_CLK(gpt_clk,          CCGR1, CG10, &ipg_perclk,       &gpt_serial_clk);
DEF_CLK(gpu2d_core_clk,   CCGR1, CG12, &pll2_pfd_352m,    &gpu2d_axi_clk);
DEF_CLK(gpu3d_core_clk,   CCGR1, CG13, &pll2_pfd_594m,    &gpu3d_axi_clk);
DEF_CLK(gpu3d_shader_clk, CCGR1, CG13, &pll3_pfd_720m,    &gpu3d_axi_clk);
DEF_CLK(hdmi_iahb_clk,    CCGR2, CG0,  &ahb_clk,          NULL);
DEF_CLK(hdmi_isfr_clk,    CCGR2, CG2,  &pll3_pfd_540m,    &hdmi_iahb_clk);
DEF_CLK(i2c1_clk,         CCGR2, CG3,  &ipg_perclk,       NULL);
DEF_CLK(i2c2_clk,         CCGR2, CG4,  &ipg_perclk,       NULL);
DEF_CLK(i2c3_clk,         CCGR2, CG5,  &ipg_perclk,       NULL);
DEF_CLK(iim_clk,          CCGR2, CG6,  &ipg_clk,          NULL);
DEF_CLK(enfc_clk,         CCGR2, CG7,  &pll2_pfd_352m,    NULL);
DEF_CLK(ipu1_clk,         CCGR3, CG0,  &mmdc_ch0_axi_clk, NULL);
DEF_CLK(ipu1_di0_clk,     CCGR3, CG1,  &ipu1_di0_pre_clk, NULL);
DEF_CLK(ipu1_di1_clk,     CCGR3, CG2,  &ipu1_di1_pre_clk, NULL);
DEF_CLK(ipu2_clk,         CCGR3, CG3,  &mmdc_ch0_axi_clk, NULL);
DEF_CLK(ipu2_di0_clk,     CCGR3, CG4,  &ipu2_di0_pre_clk, NULL);
DEF_CLK(ipu2_di1_clk,     CCGR3, CG5,  &ipu2_di1_pre_clk, NULL);
DEF_CLK(ldb_di0_clk,      CCGR3, CG6,  &pll3_pfd_540m,    NULL);
DEF_CLK(ldb_di1_clk,      CCGR3, CG7,  &pll3_pfd_540m,    NULL);
DEF_CLK(hsi_tx_clk,       CCGR3, CG8,  &pll2_pfd_400m,    NULL);
DEF_CLK(mlb_clk,          CCGR3, CG9,  &pll6_mlb,         NULL);
DEF_CLK(mmdc_ch0_ipg_clk, CCGR3, CG12, &ipg_clk,          NULL);
DEF_CLK(mmdc_ch0_axi_clk, CCGR3, CG10, &periph_clk,       &mmdc_ch0_ipg_clk);
DEF_CLK(mmdc_ch1_ipg_clk, CCGR3, CG13, &ipg_clk,          NULL);
DEF_CLK(mmdc_ch1_axi_clk, CCGR3, CG11, &periph2_clk,      &mmdc_ch1_ipg_clk);
DEF_CLK(openvg_axi_clk,   CCGR3, CG13, &axi_clk,          NULL);
DEF_CLK(pwm1_clk,         CCGR4, CG8,  &ipg_perclk,       NULL);
DEF_CLK(pwm2_clk,         CCGR4, CG9,  &ipg_perclk,       NULL);
DEF_CLK(pwm3_clk,         CCGR4, CG10, &ipg_perclk,       NULL);
DEF_CLK(pwm4_clk,         CCGR4, CG11, &ipg_perclk,       NULL);
DEF_CLK(gpmi_bch_apb_clk, CCGR4, CG12, &usdhc3_clk,       NULL);
DEF_CLK(gpmi_bch_clk,     CCGR4, CG13, &usdhc4_clk,       &gpmi_bch_apb_clk);
DEF_CLK(gpmi_apb_clk,     CCGR4, CG15, &usdhc3_clk,       &gpmi_bch_clk);
DEF_CLK(gpmi_io_clk,      CCGR4, CG14, &enfc_clk,         &gpmi_apb_clk);
DEF_CLK(sdma_clk,         CCGR5, CG3,  &ahb_clk,          NULL);
DEF_CLK(spba_clk,         CCGR5, CG6,  &ipg_clk,          NULL);
DEF_CLK(spdif_clk,        CCGR5, CG7,  &pll3_usb_otg,     &spba_clk);
DEF_CLK(ssi1_clk,         CCGR5, CG9,  &pll3_pfd_508m,    NULL);
DEF_CLK(ssi2_clk,         CCGR5, CG10, &pll3_pfd_508m,    NULL);
DEF_CLK(ssi3_clk,         CCGR5, CG11, &pll3_pfd_508m,    NULL);
DEF_CLK(uart_serial_clk,  CCGR5, CG13, &pll3_usb_otg,     NULL);
DEF_CLK(uart_clk,         CCGR5, CG12, &pll3_80m,         &uart_serial_clk);
DEF_CLK(usboh3_clk,       CCGR6, CG0,  &ipg_clk,          NULL);
DEF_CLK(usdhc1_clk,       CCGR6, CG1,  &pll2_pfd_400m,    NULL);
DEF_CLK(usdhc2_clk,       CCGR6, CG2,  &pll2_pfd_400m,    NULL);
DEF_CLK(usdhc3_clk,       CCGR6, CG3,  &pll2_pfd_400m,    NULL);
DEF_CLK(usdhc4_clk,       CCGR6, CG4,  &pll2_pfd_400m,    NULL);
DEF_CLK(emi_slow_clk,     CCGR6, CG5,  &axi_clk,          NULL);
DEF_CLK(vdo_axi_clk,      CCGR6, CG6,  &axi_clk,          NULL);
DEF_CLK(vpu_clk,          CCGR6, CG7,  &axi_clk,          NULL);

static int pcie_clk_enable(struct clk *clk)
{
        u32 val;

        val = readl_relaxed(PLL8_ENET);
        val |= BM_PLL_ENET_EN_PCIE;
        writel_relaxed(val, PLL8_ENET);

        return _clk_enable(clk);
}

static void pcie_clk_disable(struct clk *clk)
{
        u32 val;

        _clk_disable(clk);

        val = readl_relaxed(PLL8_ENET);
        val &= BM_PLL_ENET_EN_PCIE;
        writel_relaxed(val, PLL8_ENET);
}

static struct clk pcie_clk = {
        .enable_reg = CCGR4,
        .enable_shift = CG0,
        .enable = pcie_clk_enable,
        .disable = pcie_clk_disable,
        .set_parent = _clk_set_parent,
        .parent = &axi_clk,
        .secondary = &pll8_enet,
};

static int sata_clk_enable(struct clk *clk)
{
        u32 val;

        val = readl_relaxed(PLL8_ENET);
        val |= BM_PLL_ENET_EN_SATA;
        writel_relaxed(val, PLL8_ENET);

        return _clk_enable(clk);
}

static void sata_clk_disable(struct clk *clk)
{
        u32 val;

        _clk_disable(clk);

        val = readl_relaxed(PLL8_ENET);
        val &= BM_PLL_ENET_EN_SATA;
        writel_relaxed(val, PLL8_ENET);
}

static struct clk sata_clk = {
        .enable_reg = CCGR5,
        .enable_shift = CG2,
        .enable = sata_clk_enable,
        .disable = sata_clk_disable,
        .parent = &ipg_clk,
        .secondary = &pll8_enet,
};

#define _REGISTER_CLOCK(d, n, c) \
        { \
                .dev_id = d, \
                .con_id = n, \
                .clk = &c, \
        }

static struct clk_lookup lookups[] = {
        _REGISTER_CLOCK("2020000.uart", NULL, uart_clk),
        _REGISTER_CLOCK("21e8000.uart", NULL, uart_clk),
        _REGISTER_CLOCK("21ec000.uart", NULL, uart_clk),
        _REGISTER_CLOCK("21f0000.uart", NULL, uart_clk),
        _REGISTER_CLOCK("21f4000.uart", NULL, uart_clk),
        _REGISTER_CLOCK("2188000.enet", NULL, enet_clk),
        _REGISTER_CLOCK("2190000.usdhc", NULL, usdhc1_clk),
        _REGISTER_CLOCK("2194000.usdhc", NULL, usdhc2_clk),
        _REGISTER_CLOCK("2198000.usdhc", NULL, usdhc3_clk),
        _REGISTER_CLOCK("219c000.usdhc", NULL, usdhc4_clk),
        _REGISTER_CLOCK("21a0000.i2c", NULL, i2c1_clk),
        _REGISTER_CLOCK("21a4000.i2c", NULL, i2c2_clk),
        _REGISTER_CLOCK("21a8000.i2c", NULL, i2c3_clk),
        _REGISTER_CLOCK("2008000.ecspi", NULL, ecspi1_clk),
        _REGISTER_CLOCK("200c000.ecspi", NULL, ecspi2_clk),
        _REGISTER_CLOCK("2010000.ecspi", NULL, ecspi3_clk),
        _REGISTER_CLOCK("2014000.ecspi", NULL, ecspi4_clk),
        _REGISTER_CLOCK("2018000.ecspi", NULL, ecspi5_clk),
        _REGISTER_CLOCK("20ec000.sdma", NULL, sdma_clk),
        _REGISTER_CLOCK("20bc000.wdog", NULL, dummy_clk),
        _REGISTER_CLOCK("20c0000.wdog", NULL, dummy_clk),
        _REGISTER_CLOCK("smp_twd", NULL, twd_clk),
        _REGISTER_CLOCK(NULL, "ckih", ckih_clk),
        _REGISTER_CLOCK(NULL, "ckil_clk", ckil_clk),
        _REGISTER_CLOCK(NULL, "aips_tz1_clk", aips_tz1_clk),
        _REGISTER_CLOCK(NULL, "aips_tz2_clk", aips_tz2_clk),
        _REGISTER_CLOCK(NULL, "asrc_clk", asrc_clk),
        _REGISTER_CLOCK(NULL, "can2_clk", can2_clk),
        _REGISTER_CLOCK(NULL, "hdmi_isfr_clk", hdmi_isfr_clk),
        _REGISTER_CLOCK(NULL, "iim_clk", iim_clk),
        _REGISTER_CLOCK(NULL, "mlb_clk", mlb_clk),
        _REGISTER_CLOCK(NULL, "openvg_axi_clk", openvg_axi_clk),
        _REGISTER_CLOCK(NULL, "pwm1_clk", pwm1_clk),
        _REGISTER_CLOCK(NULL, "pwm2_clk", pwm2_clk),
        _REGISTER_CLOCK(NULL, "pwm3_clk", pwm3_clk),
        _REGISTER_CLOCK(NULL, "pwm4_clk", pwm4_clk),
        _REGISTER_CLOCK(NULL, "gpmi_io_clk", gpmi_io_clk),
        _REGISTER_CLOCK(NULL, "usboh3_clk", usboh3_clk),
        _REGISTER_CLOCK(NULL, "sata_clk", sata_clk),
};

int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
{
        u32 val = readl_relaxed(CLPCR);

        val &= ~BM_CLPCR_LPM;
        switch (mode) {
        case WAIT_CLOCKED:
                break;
        case WAIT_UNCLOCKED:
                val |= 0x1 << BP_CLPCR_LPM;
                break;
        case STOP_POWER_ON:
                val |= 0x2 << BP_CLPCR_LPM;
                break;
        case WAIT_UNCLOCKED_POWER_OFF:
                val |= 0x1 << BP_CLPCR_LPM;
                val &= ~BM_CLPCR_VSTBY;
                val &= ~BM_CLPCR_SBYOS;
                break;
        case STOP_POWER_OFF:
                val |= 0x2 << BP_CLPCR_LPM;
                val |= 0x3 << BP_CLPCR_STBY_COUNT;
                val |= BM_CLPCR_VSTBY;
                val |= BM_CLPCR_SBYOS;
                break;
        default:
                return -EINVAL;
        }
        writel_relaxed(val, CLPCR);

        return 0;
}

static struct map_desc imx6q_clock_desc[] = {
        imx_map_entry(MX6Q, CCM, MT_DEVICE),
        imx_map_entry(MX6Q, ANATOP, MT_DEVICE),
};

void __init imx6q_clock_map_io(void)
{
        iotable_init(imx6q_clock_desc, ARRAY_SIZE(imx6q_clock_desc));
}

int __init mx6q_clocks_init(void)
{
        struct device_node *np;
        void __iomem *base;
        int i, irq;

        /* retrieve the freqency of fixed clocks from device tree */
        for_each_compatible_node(np, NULL, "fixed-clock") {
                u32 rate;
                if (of_property_read_u32(np, "clock-frequency", &rate))
                        continue;

                if (of_device_is_compatible(np, "fsl,imx-ckil"))
                        external_low_reference = rate;
                else if (of_device_is_compatible(np, "fsl,imx-ckih1"))
                        external_high_reference = rate;
                else if (of_device_is_compatible(np, "fsl,imx-osc"))
                        oscillator_reference = rate;
        }

        for (i = 0; i < ARRAY_SIZE(lookups); i++)
                clkdev_add(&lookups[i]);

        /* only keep necessary clocks on */
        writel_relaxed(0x3 << CG0  | 0x3 << CG1  | 0x3 << CG2,  CCGR0);
        writel_relaxed(0x3 << CG8  | 0x3 << CG9  | 0x3 << CG10, CCGR2);
        writel_relaxed(0x3 << CG10 | 0x3 << CG12,               CCGR3);
        writel_relaxed(0x3 << CG4  | 0x3 << CG6  | 0x3 << CG7,  CCGR4);
        writel_relaxed(0x3 << CG0,                              CCGR5);
        writel_relaxed(0,                                       CCGR6);
        writel_relaxed(0,                                       CCGR7);

        clk_enable(&uart_clk);
        clk_enable(&mmdc_ch0_axi_clk);

        clk_set_rate(&pll4_audio, FREQ_650M);
        clk_set_rate(&pll5_video, FREQ_650M);
        clk_set_parent(&ipu1_di0_clk, &ipu1_di0_pre_clk);
        clk_set_parent(&ipu1_di0_pre_clk, &pll5_video);
        clk_set_parent(&gpu3d_shader_clk, &pll2_pfd_594m);
        clk_set_rate(&gpu3d_shader_clk, FREQ_594M);
        clk_set_parent(&gpu3d_core_clk, &mmdc_ch0_axi_clk);
        clk_set_rate(&gpu3d_core_clk, FREQ_528M);
        clk_set_parent(&asrc_serial_clk, &pll3_usb_otg);
        clk_set_rate(&asrc_serial_clk, 1500000);
        clk_set_rate(&enfc_clk, 11000000);

        /*
         * Before pinctrl API is available, we have to rely on the pad
         * configuration set up by bootloader.  For usdhc example here,
         * u-boot sets up the pads for 49.5 MHz case, and we have to lower
         * the usdhc clock from 198 to 49.5 MHz to match the pad configuration.
         *
         * FIXME: This is should be removed after pinctrl API is available.
         * At that time, usdhc driver can call pinctrl API to change pad
         * configuration dynamically per different usdhc clock settings.
         */
        clk_set_rate(&usdhc1_clk, 49500000);
        clk_set_rate(&usdhc2_clk, 49500000);
        clk_set_rate(&usdhc3_clk, 49500000);
        clk_set_rate(&usdhc4_clk, 49500000);

        np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpt");
        base = of_iomap(np, 0);
        WARN_ON(!base);
        irq = irq_of_parse_and_map(np, 0);
        mxc_timer_init(&gpt_clk, base, irq);

        return 0;
}