uboot/board/technexion/pico-imx7d/pico-imx7d.c
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   1/*
   2 * Copyright (C) 2017 NXP Semiconductors
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <asm/arch/clock.h>
   8#include <asm/arch/crm_regs.h>
   9#include <asm/arch/imx-regs.h>
  10#include <asm/arch/mx7-pins.h>
  11#include <asm/arch/sys_proto.h>
  12#include <asm/gpio.h>
  13#include <asm/mach-imx/iomux-v3.h>
  14#include <asm/mach-imx/mxc_i2c.h>
  15#include <asm/io.h>
  16#include <common.h>
  17#include <fsl_esdhc.h>
  18#include <i2c.h>
  19#include <miiphy.h>
  20#include <mmc.h>
  21#include <netdev.h>
  22#include <usb.h>
  23#include <power/pmic.h>
  24#include <power/pfuze3000_pmic.h>
  25#include "../../freescale/common/pfuze.h"
  26
  27DECLARE_GLOBAL_DATA_PTR;
  28
  29#define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | \
  30        PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS)
  31
  32#define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \
  33        PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
  34
  35#define ENET_PAD_CTRL  (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM)
  36#define ENET_PAD_CTRL_MII  (PAD_CTL_DSE_3P3V_32OHM)
  37
  38#define ENET_RX_PAD_CTRL  (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM)
  39
  40#define I2C_PAD_CTRL    (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \
  41        PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU100KOHM)
  42
  43#ifdef CONFIG_SYS_I2C_MXC
  44#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
  45/* I2C4 for PMIC */
  46static struct i2c_pads_info i2c_pad_info4 = {
  47        .scl = {
  48                .i2c_mode = MX7D_PAD_SAI1_RX_SYNC__I2C4_SCL | PC,
  49                .gpio_mode = MX7D_PAD_SAI1_RX_SYNC__GPIO6_IO16 | PC,
  50                .gp = IMX_GPIO_NR(6, 16),
  51        },
  52        .sda = {
  53                .i2c_mode = MX7D_PAD_SAI1_RX_BCLK__I2C4_SDA | PC,
  54                .gpio_mode = MX7D_PAD_SAI1_RX_BCLK__GPIO6_IO17 | PC,
  55                .gp = IMX_GPIO_NR(6, 17),
  56        },
  57};
  58#endif
  59
  60int dram_init(void)
  61{
  62        gd->ram_size = PHYS_SDRAM_SIZE;
  63
  64        return 0;
  65}
  66
  67#ifdef CONFIG_POWER
  68#define I2C_PMIC        3
  69int power_init_board(void)
  70{
  71        struct pmic *p;
  72        int ret;
  73        unsigned int reg, rev_id;
  74
  75        ret = power_pfuze3000_init(I2C_PMIC);
  76        if (ret)
  77                return ret;
  78
  79        p = pmic_get("PFUZE3000");
  80        ret = pmic_probe(p);
  81        if (ret)
  82                return ret;
  83
  84        pmic_reg_read(p, PFUZE3000_DEVICEID, &reg);
  85        pmic_reg_read(p, PFUZE3000_REVID, &rev_id);
  86        printf("PMIC:  PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id);
  87
  88        /* disable Low Power Mode during standby mode */
  89        pmic_reg_read(p, PFUZE3000_LDOGCTL, &reg);
  90        reg |= 0x1;
  91        pmic_reg_write(p, PFUZE3000_LDOGCTL, reg);
  92
  93        /* SW1A/1B mode set to APS/APS */
  94        reg = 0x8;
  95        pmic_reg_write(p, PFUZE3000_SW1AMODE, reg);
  96        pmic_reg_write(p, PFUZE3000_SW1BMODE, reg);
  97
  98        /* SW1A/1B standby voltage set to 1.025V */
  99        reg = 0xd;
 100        pmic_reg_write(p, PFUZE3000_SW1ASTBY, reg);
 101        pmic_reg_write(p, PFUZE3000_SW1BSTBY, reg);
 102
 103        /* decrease SW1B normal voltage to 0.975V */
 104        pmic_reg_read(p, PFUZE3000_SW1BVOLT, &reg);
 105        reg &= ~0x1f;
 106        reg |= PFUZE3000_SW1AB_SETP(975);
 107        pmic_reg_write(p, PFUZE3000_SW1BVOLT, reg);
 108
 109        return 0;
 110}
 111#endif
 112
 113static iomux_v3_cfg_t const wdog_pads[] = {
 114        MX7D_PAD_GPIO1_IO00__WDOG1_WDOG_B | MUX_PAD_CTRL(NO_PAD_CTRL),
 115};
 116
 117static iomux_v3_cfg_t const uart5_pads[] = {
 118        MX7D_PAD_I2C4_SCL__UART5_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
 119        MX7D_PAD_I2C4_SDA__UART5_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
 120};
 121
 122static iomux_v3_cfg_t const usdhc3_emmc_pads[] = {
 123        MX7D_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 124        MX7D_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 125        MX7D_PAD_SD3_DATA0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 126        MX7D_PAD_SD3_DATA1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 127        MX7D_PAD_SD3_DATA2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 128        MX7D_PAD_SD3_DATA3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 129        MX7D_PAD_SD3_DATA4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 130        MX7D_PAD_SD3_DATA5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 131        MX7D_PAD_SD3_DATA6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 132        MX7D_PAD_SD3_DATA7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 133        MX7D_PAD_GPIO1_IO14__GPIO1_IO14 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 134};
 135
 136#ifdef CONFIG_FEC_MXC
 137static iomux_v3_cfg_t const fec1_pads[] = {
 138        MX7D_PAD_SD2_CD_B__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
 139        MX7D_PAD_SD2_WP__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL_MII),
 140        MX7D_PAD_ENET1_RGMII_TXC__ENET1_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
 141        MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 142        MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 143        MX7D_PAD_ENET1_RGMII_TD2__ENET1_RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 144        MX7D_PAD_ENET1_RGMII_TD3__ENET1_RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 145        MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
 146        MX7D_PAD_ENET1_RGMII_RXC__ENET1_RGMII_RXC | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 147        MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 148        MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 149        MX7D_PAD_ENET1_RGMII_RD2__ENET1_RGMII_RD2 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 150        MX7D_PAD_ENET1_RGMII_RD3__ENET1_RGMII_RD3 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 151        MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 152        MX7D_PAD_SD3_STROBE__GPIO6_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
 153        MX7D_PAD_SD3_RESET_B__GPIO6_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
 154};
 155
 156#define FEC1_RST_GPIO   IMX_GPIO_NR(6, 11)
 157
 158static void setup_iomux_fec(void)
 159{
 160        imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
 161
 162        gpio_direction_output(FEC1_RST_GPIO, 0);
 163        udelay(500);
 164        gpio_set_value(FEC1_RST_GPIO, 1);
 165}
 166
 167int board_eth_init(bd_t *bis)
 168{
 169        setup_iomux_fec();
 170
 171        return fecmxc_initialize_multi(bis, 0,
 172                CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE);
 173}
 174
 175static int setup_fec(void)
 176{
 177        struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
 178                = (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
 179
 180        /* Use 125M anatop REF_CLK1 for ENET1, clear gpr1[13], gpr1[17] */
 181        clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
 182                        (IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK |
 183                        IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK), 0);
 184
 185        return set_clk_enet(ENET_125MHZ);
 186}
 187
 188int board_phy_config(struct phy_device *phydev)
 189{
 190        unsigned short val;
 191
 192        /* To enable AR8035 ouput a 125MHz clk from CLK_25M */
 193        phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
 194        phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
 195        phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
 196
 197        val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
 198        val &= 0xffe7;
 199        val |= 0x18;
 200        phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
 201
 202        /* introduce tx clock delay */
 203        phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
 204        val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
 205        val |= 0x0100;
 206        phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
 207
 208        if (phydev->drv->config)
 209                phydev->drv->config(phydev);
 210
 211        return 0;
 212}
 213#endif
 214
 215static void setup_iomux_uart(void)
 216{
 217        imx_iomux_v3_setup_multiple_pads(uart5_pads, ARRAY_SIZE(uart5_pads));
 218}
 219
 220static struct fsl_esdhc_cfg usdhc_cfg[1] = {
 221        {USDHC3_BASE_ADDR},
 222};
 223
 224int board_mmc_getcd(struct mmc *mmc)
 225{
 226        /* Assume uSDHC3 emmc is always present */
 227        return 1;
 228}
 229
 230int board_mmc_init(bd_t *bis)
 231{
 232        imx_iomux_v3_setup_multiple_pads(
 233                        usdhc3_emmc_pads, ARRAY_SIZE(usdhc3_emmc_pads));
 234        usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
 235
 236        return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
 237}
 238
 239int board_early_init_f(void)
 240{
 241        setup_iomux_uart();
 242
 243#ifdef CONFIG_SYS_I2C_MXC
 244        setup_i2c(3, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info4);
 245#endif
 246
 247        return 0;
 248}
 249
 250int board_init(void)
 251{
 252        /* address of boot parameters */
 253        gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 254
 255#ifdef CONFIG_FEC_MXC
 256        setup_fec();
 257#endif
 258
 259        return 0;
 260}
 261
 262int board_late_init(void)
 263{
 264        struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
 265
 266        imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
 267
 268        set_wdog_reset(wdog);
 269
 270        /*
 271         * Do not assert internal WDOG_RESET_B_DEB(controlled by bit 4),
 272         * since we use PMIC_PWRON to reset the board.
 273         */
 274        clrsetbits_le16(&wdog->wcr, 0, 0x10);
 275
 276        return 0;
 277}
 278
 279int checkboard(void)
 280{
 281        puts("Board: i.MX7D PICOSOM\n");
 282
 283        return 0;
 284}
 285
 286int board_usb_phy_mode(int port)
 287{
 288        return USB_INIT_DEVICE;
 289}
 290