board/warp7/warp7.c

   1 /*
   2  * Copyright (C) 2016 NXP Semiconductors
   3  * Author: Fabio Estevam <fabio.estevam@nxp.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <asm/arch/clock.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 <mmc.h>
  20 #include <asm/arch/crm_regs.h>
  21 #include <usb.h>
  22 #include <netdev.h>
  23 #include <power/pmic.h>
  24 #include <power/pfuze3000_pmic.h>
  25 #include "../freescale/common/pfuze.h"
  26 #include <asm/setup.h>
  27 #include <asm/bootm.h>
  28
  29 DECLARE_GLOBAL_DATA_PTR;
  30
  31 #define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU100KOHM | \
  32                         PAD_CTL_HYS)
  33 #define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW |     \
  34                         PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
  35
  36 #define I2C_PAD_CTRL    (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \
  37         PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU100KOHM)
  38
  39 #ifdef CONFIG_SYS_I2C_MXC
  40 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
  41 /* I2C1 for PMIC */
  42 static struct i2c_pads_info i2c_pad_info1 = {
  43         .scl = {
  44                 .i2c_mode = MX7D_PAD_I2C1_SCL__I2C1_SCL | PC,
  45                 .gpio_mode = MX7D_PAD_I2C1_SCL__GPIO4_IO8 | PC,
  46                 .gp = IMX_GPIO_NR(4, 8),
  47         },
  48         .sda = {
  49                 .i2c_mode = MX7D_PAD_I2C1_SDA__I2C1_SDA | PC,
  50                 .gpio_mode = MX7D_PAD_I2C1_SDA__GPIO4_IO9 | PC,
  51                 .gp = IMX_GPIO_NR(4, 9),
  52         },
  53 };
  54 #endif
  55
  56 int dram_init(void)
  57 {
  58         gd->ram_size = PHYS_SDRAM_SIZE;
  59
  60         return 0;
  61 }
  62
  63 static iomux_v3_cfg_t const wdog_pads[] = {
  64         MX7D_PAD_GPIO1_IO00__WDOG1_WDOG_B | MUX_PAD_CTRL(NO_PAD_CTRL),
  65 };
  66
  67 static iomux_v3_cfg_t const uart1_pads[] = {
  68         MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  69         MX7D_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  70 };
  71
  72 static iomux_v3_cfg_t const usdhc3_pads[] = {
  73         MX7D_PAD_SD3_CLK__SD3_CLK     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  74         MX7D_PAD_SD3_CMD__SD3_CMD     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  75         MX7D_PAD_SD3_DATA0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  76         MX7D_PAD_SD3_DATA1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  77         MX7D_PAD_SD3_DATA2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  78         MX7D_PAD_SD3_DATA3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  79         MX7D_PAD_SD3_DATA4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  80         MX7D_PAD_SD3_DATA5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  81         MX7D_PAD_SD3_DATA6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  82         MX7D_PAD_SD3_DATA7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  83         MX7D_PAD_SD3_RESET_B__SD3_RESET_B | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  84 };
  85
  86 static void setup_iomux_uart(void)
  87 {
  88         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
  89 };
  90
  91 static struct fsl_esdhc_cfg usdhc_cfg[1] = {
  92         {USDHC3_BASE_ADDR},
  93 };
  94
  95 int board_mmc_getcd(struct mmc *mmc)
  96 {
  97                 /* Assume uSDHC3 emmc is always present */
  98                 return 1;
  99 }
 100
 101 int board_mmc_init(bd_t *bis)
 102 {
 103         imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
 104         usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
 105
 106         return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
 107 }
 108
 109 int board_early_init_f(void)
 110 {
 111         setup_iomux_uart();
 112
 113         return 0;
 114 }
 115
 116 #ifdef CONFIG_POWER
 117 #define I2C_PMIC       0
 118 static struct pmic *pfuze;
 119 int power_init_board(void)
 120 {
 121         int ret;
 122         unsigned int reg, rev_id;
 123
 124         ret = power_pfuze3000_init(I2C_PMIC);
 125         if (ret)
 126                 return ret;
 127
 128         pfuze = pmic_get("PFUZE3000");
 129         ret = pmic_probe(pfuze);
 130         if (ret)
 131                 return ret;
 132
 133         pmic_reg_read(pfuze, PFUZE3000_DEVICEID, &reg);
 134         pmic_reg_read(pfuze, PFUZE3000_REVID, &rev_id);
 135         printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id);
 136
 137         /* disable Low Power Mode during standby mode */
 138         pmic_reg_write(pfuze, PFUZE3000_LDOGCTL, 0x1);
 139
 140         return 0;
 141 }
 142 #endif
 143
 144 int board_eth_init(bd_t *bis)
 145 {
 146         int ret = 0;
 147
 148 #ifdef CONFIG_USB_ETHER
 149         ret = usb_eth_initialize(bis);
 150         if (ret < 0)
 151                 printf("Error %d registering USB ether.\n", ret);
 152 #endif
 153
 154         return ret;
 155 }
 156
 157 int board_init(void)
 158 {
 159         /* address of boot parameters */
 160         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 161
 162         #ifdef CONFIG_SYS_I2C_MXC
 163                 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 164         #endif
 165
 166         return 0;
 167 }
 168
 169 int checkboard(void)
 170 {
 171         char *mode;
 172
 173         if (IS_ENABLED(CONFIG_ARMV7_BOOT_SEC_DEFAULT))
 174                 mode = "secure";
 175         else
 176                 mode = "non-secure";
 177
 178         printf("Board: WARP7 in %s mode\n", mode);
 179
 180         return 0;
 181 }
 182
 183 int board_usb_phy_mode(int port)
 184 {
 185         return USB_INIT_DEVICE;
 186 }
 187
 188 int board_late_init(void)
 189 {
 190         struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
 191 #ifdef CONFIG_SERIAL_TAG
 192         struct tag_serialnr serialnr;
 193         char serial_string[0x20];
 194 #endif
 195
 196         imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
 197
 198         set_wdog_reset(wdog);
 199
 200         /*
 201          * Do not assert internal WDOG_RESET_B_DEB(controlled by bit 4),
 202          * since we use PMIC_PWRON to reset the board.
 203          */
 204         clrsetbits_le16(&wdog->wcr, 0, 0x10);
 205
 206 #ifdef CONFIG_SERIAL_TAG
 207         /* Set serial# standard environment variable based on OTP settings */
 208         get_board_serial(&serialnr);
 209         snprintf(serial_string, sizeof(serial_string), "WaRP7-0x%08x%08x",
 210                  serialnr.low, serialnr.high);
 211         env_set("serial#", serial_string);
 212 #endif
 213
 214         return 0;
 215 }