board/freescale/imx8qxp_mek/spl.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright 2018, 2021 NXP
   4  *
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <image.h>
  10 #include <init.h>
  11 #include <log.h>
  12 #include <spl.h>
  13 #include <asm/global_data.h>
  14 #include <dm/uclass.h>
  15 #include <dm/device.h>
  16 #include <dm/uclass-internal.h>
  17 #include <dm/device-internal.h>
  18 #include <dm/lists.h>
  19 #include <asm/io.h>
  20 #include <asm/gpio.h>
  21 #include <asm/arch/sci/sci.h>
  22 #include <asm/arch/imx8-pins.h>
  23 #include <asm/arch/iomux.h>
  24 #include <asm/arch/sys_proto.h>
  25
  26 DECLARE_GLOBAL_DATA_PTR;
  27
  28 #define GPIO_PAD_CTRL   ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \
  29                          (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
  30                          (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
  31                          (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
  32
  33 #define USDHC2_SD_PWR IMX_GPIO_NR(4, 19)
  34 static iomux_cfg_t usdhc2_sd_pwr[] = {
  35         SC_P_USDHC1_RESET_B | MUX_PAD_CTRL(GPIO_PAD_CTRL),
  36 };
  37
  38 void spl_board_init(void)
  39 {
  40         struct udevice *dev;
  41
  42         uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(imx8_scu), &dev);
  43
  44         uclass_find_first_device(UCLASS_MISC, &dev);
  45
  46         for (; dev; uclass_find_next_device(&dev)) {
  47                 if (device_probe(dev))
  48                         continue;
  49         }
  50
  51         arch_cpu_init();
  52
  53         board_early_init_f();
  54
  55         timer_init();
  56
  57         imx8_iomux_setup_multiple_pads(usdhc2_sd_pwr, ARRAY_SIZE(usdhc2_sd_pwr));
  58         gpio_direction_output(USDHC2_SD_PWR, 0);
  59
  60         preloader_console_init();
  61
  62         puts("Normal Boot\n");
  63 }
  64
  65 void spl_board_prepare_for_boot(void)
  66 {
  67         imx8_power_off_pd_devices(NULL, 0);
  68 }
  69
  70 #ifdef CONFIG_SPL_LOAD_FIT
  71 int board_fit_config_name_match(const char *name)
  72 {
  73         /* Just empty function now - can't decide what to choose */
  74         debug("%s: %s\n", __func__, name);
  75
  76         return 0;
  77 }
  78 #endif
  79
  80 void board_init_f(ulong dummy)
  81 {
  82         /* Clear global data */
  83         memset((void *)gd, 0, sizeof(gd_t));
  84
  85         /* Clear the BSS. */
  86         memset(__bss_start, 0, __bss_end - __bss_start);
  87
  88         board_init_r(NULL, 0);
  89 }