board/warp7/warp7.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2016 NXP Semiconductors
   4  * Author: Fabio Estevam <fabio.estevam@nxp.com>
   5  */
   6
   7 #include <asm/arch/clock.h>
   8 #include <asm/arch/imx-regs.h>
   9 #include <asm/arch/mx7-pins.h>
  10 #include <asm/arch/sys_proto.h>
  11 #include <asm/gpio.h>
  12 #include <asm/mach-imx/hab.h>
  13 #include <asm/mach-imx/iomux-v3.h>
  14 #include <asm/io.h>
  15 #include <common.h>
  16 #include <env.h>
  17 #include <asm/arch/crm_regs.h>
  18 #include <netdev.h>
  19 #include <power/pmic.h>
  20 #include <power/pfuze3000_pmic.h>
  21 #include "../freescale/common/pfuze.h"
  22 #include <asm/setup.h>
  23 #include <asm/bootm.h>
  24
  25 DECLARE_GLOBAL_DATA_PTR;
  26
  27 #define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU100KOHM | \
  28                         PAD_CTL_HYS)
  29
  30 int dram_init(void)
  31 {
  32         gd->ram_size = PHYS_SDRAM_SIZE;
  33
  34         /* Subtract the defined OPTEE runtime firmware length */
  35 #ifdef CONFIG_OPTEE_TZDRAM_SIZE
  36                 gd->ram_size -= CONFIG_OPTEE_TZDRAM_SIZE;
  37 #endif
  38
  39         return 0;
  40 }
  41
  42 static iomux_v3_cfg_t const wdog_pads[] = {
  43         MX7D_PAD_GPIO1_IO00__WDOG1_WDOG_B | MUX_PAD_CTRL(NO_PAD_CTRL),
  44 };
  45
  46 static iomux_v3_cfg_t const uart1_pads[] = {
  47         MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  48         MX7D_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  49 };
  50
  51 static void setup_iomux_uart(void)
  52 {
  53         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
  54 };
  55
  56 int board_early_init_f(void)
  57 {
  58         setup_iomux_uart();
  59
  60         return 0;
  61 }
  62
  63 #ifdef CONFIG_DM_PMIC
  64 int power_init_board(void)
  65 {
  66         struct udevice *dev;
  67         int ret, dev_id, rev_id;
  68
  69         ret = pmic_get("pfuze3000", &dev);
  70         if (ret == -ENODEV)
  71                 return 0;
  72         if (ret != 0)
  73                 return ret;
  74
  75         dev_id = pmic_reg_read(dev, PFUZE3000_DEVICEID);
  76         rev_id = pmic_reg_read(dev, PFUZE3000_REVID);
  77         printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", dev_id, rev_id);
  78
  79         /* disable Low Power Mode during standby mode */
  80         pmic_reg_write(dev, PFUZE3000_LDOGCTL, 1);
  81
  82         return 0;
  83 }
  84 #endif
  85
  86 int board_eth_init(bd_t *bis)
  87 {
  88         int ret = 0;
  89
  90 #ifdef CONFIG_USB_ETHER
  91         ret = usb_eth_initialize(bis);
  92         if (ret < 0)
  93                 printf("Error %d registering USB ether.\n", ret);
  94 #endif
  95
  96         return ret;
  97 }
  98
  99 int board_init(void)
 100 {
 101         /* address of boot parameters */
 102         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 103
 104         return 0;
 105 }
 106
 107 int checkboard(void)
 108 {
 109         char *mode;
 110
 111         if (IS_ENABLED(CONFIG_ARMV7_BOOT_SEC_DEFAULT))
 112                 mode = "secure";
 113         else
 114                 mode = "non-secure";
 115
 116 #ifdef CONFIG_OPTEE_TZDRAM_SIZE
 117         unsigned long optee_start, optee_end;
 118
 119         optee_end = PHYS_SDRAM + PHYS_SDRAM_SIZE;
 120         optee_start = optee_end - CONFIG_OPTEE_TZDRAM_SIZE;
 121
 122         printf("Board: WARP7 in %s mode OPTEE DRAM 0x%08lx-0x%08lx\n",
 123                mode, optee_start, optee_end);
 124 #else
 125         printf("Board: WARP7 in %s mode\n", mode);
 126 #endif
 127
 128         return 0;
 129 }
 130
 131 int board_late_init(void)
 132 {
 133         struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
 134 #ifdef CONFIG_SERIAL_TAG
 135         struct tag_serialnr serialnr;
 136         char serial_string[0x20];
 137 #endif
 138
 139         imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
 140
 141         set_wdog_reset(wdog);
 142
 143         /*
 144          * Do not assert internal WDOG_RESET_B_DEB(controlled by bit 4),
 145          * since we use PMIC_PWRON to reset the board.
 146          */
 147         clrsetbits_le16(&wdog->wcr, 0, 0x10);
 148
 149 #ifdef CONFIG_SECURE_BOOT
 150         /* Determine HAB state */
 151         env_set_ulong(HAB_ENABLED_ENVNAME, imx_hab_is_enabled());
 152 #else
 153         env_set_ulong(HAB_ENABLED_ENVNAME, 0);
 154 #endif
 155
 156 #ifdef CONFIG_SERIAL_TAG
 157         /* Set serial# standard environment variable based on OTP settings */
 158         get_board_serial(&serialnr);
 159         snprintf(serial_string, sizeof(serial_string), "WaRP7-0x%08x%08x",
 160                  serialnr.low, serialnr.high);
 161         env_set("serial#", serial_string);
 162 #endif
 163
 164         return 0;
 165 }