board/engicam/common/board.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2016 Amarula Solutions B.V.
   4  * Copyright (C) 2016 Engicam S.r.l.
   5  * Author: Jagan Teki <jagan@amarulasolutions.com>
   6  */
   7
   8 #include <common.h>
   9 #include <command.h>
  10 #include <env.h>
  11 #include <init.h>
  12 #include <mmc.h>
  13 #include <asm/arch/sys_proto.h>
  14 #include <watchdog.h>
  15
  16 #include "board.h"
  17
  18 DECLARE_GLOBAL_DATA_PTR;
  19
  20 #ifdef CONFIG_ENV_IS_IN_MMC
  21 static void mmc_late_init(void)
  22 {
  23         char cmd[32];
  24         char mmcblk[32];
  25         u32 dev_no = mmc_get_env_dev();
  26
  27         env_set_ulong("mmcdev", dev_no);
  28
  29         /* Set mmcblk env */
  30         sprintf(mmcblk, "/dev/mmcblk%dp2 rootwait rw", dev_no);
  31         env_set("mmcroot", mmcblk);
  32
  33         sprintf(cmd, "mmc dev %d", dev_no);
  34         run_command(cmd, 0);
  35 }
  36 #endif
  37
  38 enum engicam_boards {
  39         IMX6Q_ICORE,
  40         IMX6DL_ICORE,
  41         IMX6Q_ICORE_MIPI,
  42         IMX6DL_ICORE_MIPI,
  43         IMX6Q_ICORE_RQS,
  44         IMX6DL_ICORE_RQS,
  45         IMX6UL_GEAM,
  46         IMX6UL_ISIOT_EMMC,
  47         IMX6UL_ISIOT_NAND,
  48         ENGICAM_BOARDS,
  49 };
  50
  51 static const char * const board_fdt_file[ENGICAM_BOARDS] = {
  52         [IMX6Q_ICORE] = "imx6q-icore.dtb",
  53         [IMX6DL_ICORE] = "imx6dl-icore.dtb",
  54         [IMX6Q_ICORE_MIPI] = "imx6q-icore-mipi.dtb",
  55         [IMX6DL_ICORE_MIPI] = "imx6dl-icore-mipi.dtb",
  56         [IMX6Q_ICORE_RQS] = "imx6q-icore-rqs.dtb",
  57         [IMX6DL_ICORE_RQS] = "imx6dl-icore-rqs.dtb",
  58         [IMX6UL_GEAM] = "imx6ul-geam.dtb",
  59         [IMX6UL_ISIOT_EMMC] = "imx6ul-isiot-emmc.dtb",
  60         [IMX6UL_ISIOT_NAND] = "imx6ul-isiot-nand.dtb",
  61 };
  62
  63 static int setenv_fdt_file(int board_detected)
  64 {
  65         if (board_detected < 0 || board_detected >= ENGICAM_BOARDS)
  66                 return -EINVAL;
  67
  68         if (!board_fdt_file[board_detected])
  69                 return -ENODEV;
  70
  71         env_set("fdt_file", board_fdt_file[board_detected]);
  72         return 0;
  73 }
  74
  75 static enum engicam_boards engicam_board_detect(void)
  76 {
  77         const char *cmp_dtb = CONFIG_DEFAULT_DEVICE_TREE;
  78
  79         if (!strcmp(cmp_dtb, "imx6q-icore")) {
  80                 if (is_mx6dq())
  81                         return IMX6Q_ICORE;
  82                 else if (is_mx6dl() || is_mx6solo())
  83                         return IMX6DL_ICORE;
  84         } else if (!strcmp(cmp_dtb, "imx6q-icore-mipi")) {
  85                 if (is_mx6dq())
  86                         return IMX6Q_ICORE_MIPI;
  87                 else if (is_mx6dl() || is_mx6solo())
  88                         return IMX6DL_ICORE_MIPI;
  89         } else if (!strcmp(cmp_dtb, "imx6q-icore-rqs")) {
  90                 if (is_mx6dq())
  91                         return IMX6Q_ICORE_RQS;
  92                 else if (is_mx6dl() || is_mx6solo())
  93                         return IMX6DL_ICORE_RQS;
  94         } else if (!strcmp(cmp_dtb, "imx6ul-geam"))
  95                         return IMX6UL_GEAM;
  96         else if (!strcmp(cmp_dtb, "imx6ul-isiot-emmc"))
  97                         return IMX6UL_ISIOT_EMMC;
  98         else if (!strcmp(cmp_dtb, "imx6ul-isiot-nand"))
  99                         return IMX6UL_ISIOT_NAND;
 100
 101         return -EINVAL;
 102 }
 103
 104 int board_late_init(void)
 105 {
 106         enum engicam_boards board_detected = IMX6Q_ICORE;
 107
 108         switch ((imx6_src_get_boot_mode() & IMX6_BMODE_MASK) >>
 109                         IMX6_BMODE_SHIFT) {
 110         case IMX6_BMODE_SD:
 111         case IMX6_BMODE_ESD:
 112         case IMX6_BMODE_MMC:
 113         case IMX6_BMODE_EMMC:
 114 #ifdef CONFIG_ENV_IS_IN_MMC
 115                 mmc_late_init();
 116 #endif
 117                 env_set("modeboot", "mmcboot");
 118                 break;
 119         case IMX6_BMODE_NAND_MIN ... IMX6_BMODE_NAND_MAX:
 120                 env_set("modeboot", "nandboot");
 121                 break;
 122         default:
 123                 env_set("modeboot", "");
 124                 break;
 125         }
 126
 127         if (is_mx6ul())
 128                 env_set("console", "ttymxc0");
 129         else
 130                 env_set("console", "ttymxc3");
 131
 132         board_detected = engicam_board_detect();
 133         if (board_detected < 0)
 134                 hang();
 135
 136         setenv_fdt_file(board_detected);
 137
 138 #ifdef CONFIG_HW_WATCHDOG
 139         hw_watchdog_init();
 140 #endif
 141
 142         return 0;
 143 }
 144
 145 int board_init(void)
 146 {
 147         /* Address of boot parameters */
 148         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 149
 150 #ifdef CONFIG_NAND_MXS
 151         setup_gpmi_nand();
 152 #endif
 153
 154 #ifdef CONFIG_VIDEO_IPUV3
 155         setup_display();
 156 #endif
 157
 158         return 0;
 159 }
 160
 161 int dram_init(void)
 162 {
 163         gd->ram_size = imx_ddr_size();
 164
 165         return 0;
 166 }