[people/ms/u-boot.git] / arch / arm / cpu / armv7 / exynos / exynos5_setup.h

/*
 * Machine Specific Values for SMDK5250 board based on EXYNOS5
 *
 * Copyright (C) 2012 Samsung Electronics
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#ifndef _SMDK5250_SETUP_H
#define _SMDK5250_SETUP_H

#include <config.h>
#include <asm/arch/dmc.h>

/* APLL_CON1    */
#define APLL_CON1_VAL   (0x00203800)

/* MPLL_CON1    */
#define MPLL_CON1_VAL   (0x00203800)

/* CPLL_CON1    */
#define CPLL_CON1_VAL   (0x00203800)

/* GPLL_CON1    */
#define GPLL_CON1_VAL   (0x00203800)

/* EPLL_CON1, CON2      */
#define EPLL_CON1_VAL   0x00000000
#define EPLL_CON2_VAL   0x00000080

/* VPLL_CON1, CON2      */
#define VPLL_CON1_VAL   0x00000000
#define VPLL_CON2_VAL   0x00000080

/* BPLL_CON1    */
#define BPLL_CON1_VAL   0x00203800

/* Set PLL */
#define set_pll(mdiv, pdiv, sdiv)       (1<<31 | mdiv<<16 | pdiv<<8 | sdiv)

/* CLK_SRC_CPU  */
/* 0 = MOUTAPLL,  1 = SCLKMPLL  */
#define MUX_HPM_SEL             0
#define MUX_CPU_SEL             0
#define MUX_APLL_SEL            1

#define CLK_SRC_CPU_VAL         ((MUX_HPM_SEL << 20)    \
                                | (MUX_CPU_SEL << 16)  \
                                | (MUX_APLL_SEL))

/* MEMCONTROL register bit fields */
#define DMC_MEMCONTROL_CLK_STOP_DISABLE (0 << 0)
#define DMC_MEMCONTROL_DPWRDN_DISABLE   (0 << 1)
#define DMC_MEMCONTROL_DPWRDN_ACTIVE_PRECHARGE  (0 << 2)
#define DMC_MEMCONTROL_TP_DISABLE       (0 << 4)
#define DMC_MEMCONTROL_DSREF_DISABLE    (0 << 5)
#define DMC_MEMCONTROL_DSREF_ENABLE     (1 << 5)
#define DMC_MEMCONTROL_ADD_LAT_PALL_CYCLE(x)    (x << 6)

#define DMC_MEMCONTROL_MEM_TYPE_LPDDR3  (7 << 8)
#define DMC_MEMCONTROL_MEM_TYPE_DDR3    (6 << 8)
#define DMC_MEMCONTROL_MEM_TYPE_LPDDR2  (5 << 8)

#define DMC_MEMCONTROL_MEM_WIDTH_32BIT  (2 << 12)

#define DMC_MEMCONTROL_NUM_CHIP_1       (0 << 16)
#define DMC_MEMCONTROL_NUM_CHIP_2       (1 << 16)

#define DMC_MEMCONTROL_BL_8             (3 << 20)
#define DMC_MEMCONTROL_BL_4             (2 << 20)

#define DMC_MEMCONTROL_PZQ_DISABLE      (0 << 24)

#define DMC_MEMCONTROL_MRR_BYTE_7_0     (0 << 25)
#define DMC_MEMCONTROL_MRR_BYTE_15_8    (1 << 25)
#define DMC_MEMCONTROL_MRR_BYTE_23_16   (2 << 25)
#define DMC_MEMCONTROL_MRR_BYTE_31_24   (3 << 25)

/* MEMCONFIG0 register bit fields */
#define DMC_MEMCONFIGX_CHIP_MAP_INTERLEAVED     (1 << 12)
#define DMC_MEMCONFIGX_CHIP_COL_10              (3 << 8)
#define DMC_MEMCONFIGX_CHIP_ROW_14              (2 << 4)
#define DMC_MEMCONFIGX_CHIP_ROW_15              (3 << 4)
#define DMC_MEMCONFIGX_CHIP_BANK_8              (3 << 0)

#define DMC_MEMBASECONFIGX_CHIP_BASE(x)         (x << 16)
#define DMC_MEMBASECONFIGX_CHIP_MASK(x)         (x << 0)
#define DMC_MEMBASECONFIG_VAL(x)        (       \
        DMC_MEMBASECONFIGX_CHIP_BASE(x) |       \
        DMC_MEMBASECONFIGX_CHIP_MASK(0x780)     \
)

#define DMC_MEMBASECONFIG0_VAL  DMC_MEMBASECONFIG_VAL(0x40)
#define DMC_MEMBASECONFIG1_VAL  DMC_MEMBASECONFIG_VAL(0x80)

#define DMC_PRECHCONFIG_VAL             0xFF000000
#define DMC_PWRDNCONFIG_VAL             0xFFFF00FF

#define DMC_CONCONTROL_RESET_VAL        0x0FFF0000
#define DFI_INIT_START          (1 << 28)
#define EMPTY                   (1 << 8)
#define AREF_EN                 (1 << 5)

#define DFI_INIT_COMPLETE_CHO   (1 << 2)
#define DFI_INIT_COMPLETE_CH1   (1 << 3)

#define RDLVL_COMPLETE_CHO      (1 << 14)
#define RDLVL_COMPLETE_CH1      (1 << 15)

#define CLK_STOP_EN     (1 << 0)
#define DPWRDN_EN       (1 << 1)
#define DSREF_EN        (1 << 5)

/* COJCONTROL register bit fields */
#define DMC_CONCONTROL_IO_PD_CON_DISABLE        (0 << 3)
#define DMC_CONCONTROL_AREF_EN_DISABLE          (0 << 5)
#define DMC_CONCONTROL_EMPTY_DISABLE            (0 << 8)
#define DMC_CONCONTROL_EMPTY_ENABLE             (1 << 8)
#define DMC_CONCONTROL_RD_FETCH_DISABLE         (0x0 << 12)
#define DMC_CONCONTROL_TIMEOUT_LEVEL0           (0xFFF << 16)
#define DMC_CONCONTROL_DFI_INIT_START_DISABLE   (0 << 28)

/* CLK_DIV_CPU0_VAL */
#define CLK_DIV_CPU0_VAL        ((ARM2_RATIO << 28)             \
                                | (APLL_RATIO << 24)            \
                                | (PCLK_DBG_RATIO << 20)        \
                                | (ATB_RATIO << 16)             \
                                | (PERIPH_RATIO << 12)          \
                                | (ACP_RATIO << 8)              \
                                | (CPUD_RATIO << 4)             \
                                | (ARM_RATIO))


/* CLK_FSYS */
#define CLK_SRC_FSYS0_VAL              0x66666
#define CLK_DIV_FSYS0_VAL              0x0BB00000

/* CLK_DIV_CPU1 */
#define HPM_RATIO               0x2
#define COPY_RATIO              0x0

/* CLK_DIV_CPU1 = 0x00000003 */
#define CLK_DIV_CPU1_VAL        ((HPM_RATIO << 4)               \
                                | (COPY_RATIO))

/* CLK_SRC_CORE0 */
#define CLK_SRC_CORE0_VAL       0x00000000

/* CLK_SRC_CORE1 */
#define CLK_SRC_CORE1_VAL       0x100

/* CLK_DIV_CORE0 */
#define CLK_DIV_CORE0_VAL       0x00120000

/* CLK_DIV_CORE1 */
#define CLK_DIV_CORE1_VAL       0x07070700

/* CLK_DIV_SYSRGT */
#define CLK_DIV_SYSRGT_VAL      0x00000111

/* CLK_DIV_ACP */
#define CLK_DIV_ACP_VAL         0x12

/* CLK_DIV_SYSLFT */
#define CLK_DIV_SYSLFT_VAL      0x00000311

/* CLK_SRC_CDREX */
#define CLK_SRC_CDREX_VAL       0x1

/* CLK_DIV_CDREX */
#define MCLK_CDREX2_RATIO       0x0
#define ACLK_EFCON_RATIO        0x1
#define MCLK_DPHY_RATIO         0x1
#define MCLK_CDREX_RATIO        0x1
#define ACLK_C2C_200_RATIO      0x1
#define C2C_CLK_400_RATIO       0x1
#define PCLK_CDREX_RATIO        0x1
#define ACLK_CDREX_RATIO        0x1

#define CLK_DIV_CDREX_VAL       ((MCLK_DPHY_RATIO << 24)        \
                                | (C2C_CLK_400_RATIO << 6)      \
                                | (PCLK_CDREX_RATIO << 4)       \
                                | (ACLK_CDREX_RATIO))

/* CLK_SRC_TOP0 */
#define MUX_ACLK_300_GSCL_SEL           0x0
#define MUX_ACLK_300_GSCL_MID_SEL       0x0
#define MUX_ACLK_400_G3D_MID_SEL        0x0
#define MUX_ACLK_333_SEL                0x0
#define MUX_ACLK_300_DISP1_SEL          0x0
#define MUX_ACLK_300_DISP1_MID_SEL      0x0
#define MUX_ACLK_200_SEL                0x0
#define MUX_ACLK_166_SEL                0x0
#define CLK_SRC_TOP0_VAL        ((MUX_ACLK_300_GSCL_SEL  << 25)         \
                                | (MUX_ACLK_300_GSCL_MID_SEL << 24)     \
                                | (MUX_ACLK_400_G3D_MID_SEL << 20)      \
                                | (MUX_ACLK_333_SEL << 16)              \
                                | (MUX_ACLK_300_DISP1_SEL << 15)        \
                                | (MUX_ACLK_300_DISP1_MID_SEL << 14)    \
                                | (MUX_ACLK_200_SEL << 12)              \
                                | (MUX_ACLK_166_SEL << 8))

/* CLK_SRC_TOP1 */
#define MUX_ACLK_400_G3D_SEL            0x1
#define MUX_ACLK_400_ISP_SEL            0x0
#define MUX_ACLK_400_IOP_SEL            0x0
#define MUX_ACLK_MIPI_HSI_TXBASE_SEL    0x0
#define MUX_ACLK_300_GSCL_MID1_SEL      0x0
#define MUX_ACLK_300_DISP1_MID1_SEL     0x0
#define CLK_SRC_TOP1_VAL        ((MUX_ACLK_400_G3D_SEL << 28)           \
                                |(MUX_ACLK_400_ISP_SEL << 24)           \
                                |(MUX_ACLK_400_IOP_SEL << 20)           \
                                |(MUX_ACLK_MIPI_HSI_TXBASE_SEL << 16)   \
                                |(MUX_ACLK_300_GSCL_MID1_SEL << 12)     \
                                |(MUX_ACLK_300_DISP1_MID1_SEL << 8))

/* CLK_SRC_TOP2 */
#define MUX_GPLL_SEL                    0x1
#define MUX_BPLL_USER_SEL               0x0
#define MUX_MPLL_USER_SEL               0x0
#define MUX_VPLL_SEL                    0x1
#define MUX_EPLL_SEL                    0x1
#define MUX_CPLL_SEL                    0x1
#define VPLLSRC_SEL                     0x0
#define CLK_SRC_TOP2_VAL        ((MUX_GPLL_SEL << 28)           \
                                | (MUX_BPLL_USER_SEL << 24)     \
                                | (MUX_MPLL_USER_SEL << 20)     \
                                | (MUX_VPLL_SEL << 16)          \
                                | (MUX_EPLL_SEL << 12)          \
                                | (MUX_CPLL_SEL << 8)           \
                                | (VPLLSRC_SEL))
/* CLK_SRC_TOP3 */
#define MUX_ACLK_333_SUB_SEL            0x1
#define MUX_ACLK_400_SUB_SEL            0x1
#define MUX_ACLK_266_ISP_SUB_SEL        0x1
#define MUX_ACLK_266_GPS_SUB_SEL        0x0
#define MUX_ACLK_300_GSCL_SUB_SEL       0x1
#define MUX_ACLK_266_GSCL_SUB_SEL       0x1
#define MUX_ACLK_300_DISP1_SUB_SEL      0x1
#define MUX_ACLK_200_DISP1_SUB_SEL      0x1
#define CLK_SRC_TOP3_VAL        ((MUX_ACLK_333_SUB_SEL << 24)           \
                                | (MUX_ACLK_400_SUB_SEL << 20)          \
                                | (MUX_ACLK_266_ISP_SUB_SEL << 16)      \
                                | (MUX_ACLK_266_GPS_SUB_SEL << 12)      \
                                | (MUX_ACLK_300_GSCL_SUB_SEL << 10)     \
                                | (MUX_ACLK_266_GSCL_SUB_SEL << 8)      \
                                | (MUX_ACLK_300_DISP1_SUB_SEL << 6)     \
                                | (MUX_ACLK_200_DISP1_SUB_SEL << 4))

/* CLK_DIV_TOP0 */
#define ACLK_300_DISP1_RATIO    0x2
#define ACLK_400_G3D_RATIO      0x0
#define ACLK_333_RATIO          0x0
#define ACLK_266_RATIO          0x2
#define ACLK_200_RATIO          0x3
#define ACLK_166_RATIO          0x1
#define ACLK_133_RATIO          0x1
#define ACLK_66_RATIO           0x5

#define CLK_DIV_TOP0_VAL        ((ACLK_300_DISP1_RATIO << 28)   \
                                | (ACLK_400_G3D_RATIO << 24)    \
                                | (ACLK_333_RATIO  << 20)       \
                                | (ACLK_266_RATIO << 16)        \
                                | (ACLK_200_RATIO << 12)        \
                                | (ACLK_166_RATIO << 8)         \
                                | (ACLK_133_RATIO << 4)         \
                                | (ACLK_66_RATIO))

/* CLK_DIV_TOP1 */
#define ACLK_MIPI_HSI_TX_BASE_RATIO     0x3
#define ACLK_66_PRE_RATIO               0x1
#define ACLK_400_ISP_RATIO              0x1
#define ACLK_400_IOP_RATIO              0x1
#define ACLK_300_GSCL_RATIO             0x2

#define CLK_DIV_TOP1_VAL        ((ACLK_MIPI_HSI_TX_BASE_RATIO << 28)    \
                                | (ACLK_66_PRE_RATIO << 24)             \
                                | (ACLK_400_ISP_RATIO  << 20)           \
                                | (ACLK_400_IOP_RATIO << 16)            \
                                | (ACLK_300_GSCL_RATIO << 12))

/* APLL_LOCK    */
#define APLL_LOCK_VAL   (0x546)
/* MPLL_LOCK    */
#define MPLL_LOCK_VAL   (0x546)
/* CPLL_LOCK    */
#define CPLL_LOCK_VAL   (0x546)
/* GPLL_LOCK    */
#define GPLL_LOCK_VAL   (0x546)
/* EPLL_LOCK    */
#define EPLL_LOCK_VAL   (0x3A98)
/* VPLL_LOCK    */
#define VPLL_LOCK_VAL   (0x3A98)
/* BPLL_LOCK    */
#define BPLL_LOCK_VAL   (0x546)

#define MUX_APLL_SEL_MASK       (1 << 0)
#define MUX_MPLL_SEL_MASK       (1 << 8)
#define MPLL_SEL_MOUT_MPLLFOUT  (2 << 8)
#define MUX_CPLL_SEL_MASK       (1 << 8)
#define MUX_EPLL_SEL_MASK       (1 << 12)
#define MUX_VPLL_SEL_MASK       (1 << 16)
#define MUX_GPLL_SEL_MASK       (1 << 28)
#define MUX_BPLL_SEL_MASK       (1 << 0)
#define MUX_HPM_SEL_MASK        (1 << 20)
#define HPM_SEL_SCLK_MPLL       (1 << 21)
#define APLL_CON0_LOCKED        (1 << 29)
#define MPLL_CON0_LOCKED        (1 << 29)
#define BPLL_CON0_LOCKED        (1 << 29)
#define CPLL_CON0_LOCKED        (1 << 29)
#define EPLL_CON0_LOCKED        (1 << 29)
#define GPLL_CON0_LOCKED        (1 << 29)
#define VPLL_CON0_LOCKED        (1 << 29)
#define CLK_REG_DISABLE         0x0
#define TOP2_VAL                0x0110000

/* CLK_SRC_PERIC0 */
#define PWM_SEL         6
#define UART3_SEL       6
#define UART2_SEL       6
#define UART1_SEL       6
#define UART0_SEL       6
/* SRC_CLOCK = SCLK_MPLL */
#define CLK_SRC_PERIC0_VAL      ((PWM_SEL << 24)        \
                                | (UART3_SEL << 12)     \
                                | (UART2_SEL << 8)       \
                                | (UART1_SEL << 4)      \
                                | (UART0_SEL))

/* CLK_SRC_PERIC1 */
/* SRC_CLOCK = SCLK_MPLL */
#define SPI0_SEL                6
#define SPI1_SEL                6
#define SPI2_SEL                6
#define CLK_SRC_PERIC1_VAL      ((SPI2_SEL << 24) \
                                | (SPI1_SEL << 20) \
                                | (SPI0_SEL << 16))

/* SCLK_SRC_ISP - set SPI0/1 to 6 = SCLK_MPLL_USER */
#define SPI0_ISP_SEL            6
#define SPI1_ISP_SEL            6
#define SCLK_SRC_ISP_VAL        (SPI1_ISP_SEL << 4) \
                                | (SPI0_ISP_SEL << 0)

/* SCLK_DIV_ISP - set SPI0/1 to 0xf = divide by 16 */
#define SPI0_ISP_RATIO          0xf
#define SPI1_ISP_RATIO          0xf
#define SCLK_DIV_ISP_VAL        (SPI1_ISP_RATIO << 12) \
                                | (SPI0_ISP_RATIO << 0)

/* CLK_DIV_PERIL0       */
#define UART5_RATIO     7
#define UART4_RATIO     7
#define UART3_RATIO     7
#define UART2_RATIO     7
#define UART1_RATIO     7
#define UART0_RATIO     7

#define CLK_DIV_PERIC0_VAL      ((UART3_RATIO << 12)    \
                                | (UART2_RATIO << 8)    \
                                | (UART1_RATIO << 4)    \
                                | (UART0_RATIO))
/* CLK_DIV_PERIC1 */
#define SPI1_RATIO              0x7
#define SPI0_RATIO              0xf
#define SPI1_SUB_RATIO          0x0
#define SPI0_SUB_RATIO          0x0
#define CLK_DIV_PERIC1_VAL      ((SPI1_SUB_RATIO << 24) \
                                | ((SPI1_RATIO << 16) \
                                | (SPI0_SUB_RATIO << 8) \
                                | (SPI0_RATIO << 0)))

/* CLK_DIV_PERIC2 */
#define SPI2_RATIO              0xf
#define SPI2_SUB_RATIO          0x0
#define CLK_DIV_PERIC2_VAL      ((SPI2_SUB_RATIO << 8) \
                                | (SPI2_RATIO << 0))

/* CLK_DIV_PERIC3 */
#define PWM_RATIO               8
#define CLK_DIV_PERIC3_VAL      (PWM_RATIO << 0)

/* CLK_DIV_FSYS2 */
#define MMC2_RATIO_MASK         0xf
#define MMC2_RATIO_VAL          0x3
#define MMC2_RATIO_OFFSET       0

#define MMC2_PRE_RATIO_MASK     0xff
#define MMC2_PRE_RATIO_VAL      0x9
#define MMC2_PRE_RATIO_OFFSET   8

#define MMC3_RATIO_MASK         0xf
#define MMC3_RATIO_VAL          0x1
#define MMC3_RATIO_OFFSET       16

#define MMC3_PRE_RATIO_MASK     0xff
#define MMC3_PRE_RATIO_VAL      0x0
#define MMC3_PRE_RATIO_OFFSET   24

/* CLK_SRC_LEX */
#define CLK_SRC_LEX_VAL         0x0

/* CLK_DIV_LEX */
#define CLK_DIV_LEX_VAL         0x10

/* CLK_DIV_R0X */
#define CLK_DIV_R0X_VAL         0x10

/* CLK_DIV_L0X */
#define CLK_DIV_R1X_VAL         0x10

/* CLK_DIV_ISP0 */
#define CLK_DIV_ISP0_VAL        0x31

/* CLK_DIV_ISP1 */
#define CLK_DIV_ISP1_VAL        0x0

/* CLK_DIV_ISP2 */
#define CLK_DIV_ISP2_VAL        0x1

/* CLK_SRC_DISP1_0 */
#define CLK_SRC_DISP1_0_VAL     0x6

/*
 * DIV_DISP1_0
 * For DP, divisor should be 2
 */
#define CLK_DIV_DISP1_0_FIMD1   (2 << 0)

/* CLK_GATE_IP_DISP1 */
#define CLK_GATE_DP1_ALLOW      (1 << 4)

#define DDR3PHY_CTRL_PHY_RESET  (1 << 0)
#define DDR3PHY_CTRL_PHY_RESET_OFF      (0 << 0)

#define PHY_CON0_RESET_VAL      0x17020a40
#define P0_CMD_EN               (1 << 14)
#define BYTE_RDLVL_EN           (1 << 13)
#define CTRL_SHGATE             (1 << 8)

#define PHY_CON1_RESET_VAL      0x09210100
#define CTRL_GATEDURADJ_MASK    (0xf << 20)

#define PHY_CON2_RESET_VAL      0x00010004
#define INIT_DESKEW_EN          (1 << 6)
#define RDLVL_GATE_EN           (1 << 24)

/*ZQ Configurations */
#define PHY_CON16_RESET_VAL     0x08000304

#define ZQ_CLK_DIV_EN           (1 << 18)
#define ZQ_MANUAL_STR           (1 << 1)
#define ZQ_DONE                 (1 << 0)

#define CTRL_RDLVL_GATE_ENABLE  1
#define CTRL_RDLVL_GATE_DISABLE 1

/* Direct Command */
#define DIRECT_CMD_NOP                  0x07000000
#define DIRECT_CMD_PALL                 0x01000000
#define DIRECT_CMD_ZQINIT               0x0a000000
#define DIRECT_CMD_CHANNEL_SHIFT        28
#define DIRECT_CMD_CHIP_SHIFT           20

/* DMC PHY Control0 register */
#define PHY_CONTROL0_RESET_VAL  0x0
#define MEM_TERM_EN     (1 << 31)       /* Termination enable for memory */
#define PHY_TERM_EN     (1 << 30)       /* Termination enable for PHY */
#define DMC_CTRL_SHGATE (1 << 29)       /* Duration of DQS gating signal */
#define FP_RSYNC        (1 << 3)        /* Force DLL resyncronization */

/* Driver strength for CK, CKE, CS & CA */
#define IMP_OUTPUT_DRV_40_OHM   0x5
#define IMP_OUTPUT_DRV_30_OHM   0x7
#define CA_CK_DRVR_DS_OFFSET    9
#define CA_CKE_DRVR_DS_OFFSET   6
#define CA_CS_DRVR_DS_OFFSET    3
#define CA_ADR_DRVR_DS_OFFSET   0

#define PHY_CON42_CTRL_BSTLEN_SHIFT     8
#define PHY_CON42_CTRL_RDLAT_SHIFT      0

struct mem_timings;

/* Errors that we can encourter in low-level setup */
enum {
        SETUP_ERR_OK,
        SETUP_ERR_RDLV_COMPLETE_TIMEOUT = -1,
        SETUP_ERR_ZQ_CALIBRATION_FAILURE = -2,
};

/*
 * Memory variant specific initialization code
 *
 * @param mem           Memory timings for this memory type.
 * @param mem_iv_size   Memory interleaving size is a configurable parameter
 *                      which the DMC uses to decide how to split a memory
 *                      chunk into smaller chunks to support concurrent
 *                      accesses; may vary across boards.
 * @param reset         Reset DDR PHY during initialization.
 * @return 0 if ok, SETUP_ERR_... if there is a problem
 */
int ddr3_mem_ctrl_init(struct mem_timings *mem, unsigned long mem_iv_size,
                        int reset);

/*
 * Configure ZQ I/O interface
 *
 * @param mem           Memory timings for this memory type.
 * @param phy0_ctrl     Pointer to struct containing PHY0 control reg
 * @param phy1_ctrl     Pointer to struct containing PHY1 control reg
 * @return 0 if ok, -1 on error
 */
int dmc_config_zq(struct mem_timings *mem,
                  struct exynos5_phy_control *phy0_ctrl,
                  struct exynos5_phy_control *phy1_ctrl);

/*
 * Send NOP and MRS/EMRS Direct commands
 *
 * @param mem           Memory timings for this memory type.
 * @param dmc           Pointer to struct of DMC registers
 */
void dmc_config_mrs(struct mem_timings *mem, struct exynos5_dmc *dmc);

/*
 * Send PALL Direct commands
 *
 * @param mem           Memory timings for this memory type.
 * @param dmc           Pointer to struct of DMC registers
 */
void dmc_config_prech(struct mem_timings *mem, struct exynos5_dmc *dmc);

/*
 * Configure the memconfig and membaseconfig registers
 *
 * @param mem           Memory timings for this memory type.
 * @param exynos5_dmc   Pointer to struct of DMC registers
 */
void dmc_config_memory(struct mem_timings *mem, struct exynos5_dmc *dmc);

/*
 * Reset the DLL. This function is common between DDR3 and LPDDR2.
 * However, the reset value is different. So we are passing a flag
 * ddr_mode to distinguish between LPDDR2 and DDR3.
 *
 * @param exynos5_dmc   Pointer to struct of DMC registers
 * @param ddr_mode      Type of DDR memory
 */
void update_reset_dll(struct exynos5_dmc *, enum ddr_mode);
#endif