board/rockchip/evb_rk3399/evb-rk3399.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2016 Rockchip Electronics Co., Ltd
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <dm/pinctrl.h>
   9 #include <asm/arch-rockchip/periph.h>
  10 #include <power/regulator.h>
  11 #include <spl.h>
  12
  13 int board_init(void)
  14 {
  15         struct udevice *pinctrl, *regulator;
  16         int ret;
  17
  18         /*
  19          * The PWM do not have decicated interrupt number in dts and can
  20          * not get periph_id by pinctrl framework, so let's init them here.
  21          * The PWM2 and PWM3 are for pwm regulater.
  22          */
  23         ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
  24         if (ret) {
  25                 debug("%s: Cannot find pinctrl device\n", __func__);
  26                 goto out;
  27         }
  28
  29         /* Enable pwm0 for panel backlight */
  30         ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM0);
  31         if (ret) {
  32                 debug("%s PWM0 pinctrl init fail! (ret=%d)\n", __func__, ret);
  33                 goto out;
  34         }
  35
  36         ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2);
  37         if (ret) {
  38                 debug("%s PWM2 pinctrl init fail!\n", __func__);
  39                 goto out;
  40         }
  41
  42         ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM3);
  43         if (ret) {
  44                 debug("%s PWM3 pinctrl init fail!\n", __func__);
  45                 goto out;
  46         }
  47
  48         ret = regulators_enable_boot_on(false);
  49         if (ret)
  50                 debug("%s: Cannot enable boot on regulator\n", __func__);
  51
  52         ret = regulator_get_by_platname("vcc5v0_host", &regulator);
  53         if (ret) {
  54                 debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
  55                 goto out;
  56         }
  57
  58         ret = regulator_set_enable(regulator, true);
  59         if (ret) {
  60                 debug("%s vcc5v0-host-en set fail!\n", __func__);
  61                 goto out;
  62         }
  63
  64 out:
  65         return 0;
  66 }
  67
  68 void spl_board_init(void)
  69 {
  70         preloader_console_init();
  71
  72         return;
  73 }