LXR uboot/board/rockchip/evb_rk3399/evb-rk3399.c

   1/*
   2 * (C) Copyright 2016 Rockchip Electronics Co., Ltd
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <common.h>
   8#include <dm.h>
   9#include <dm/pinctrl.h>
  10#include <dm/uclass-internal.h>
  11#include <asm/arch/periph.h>
  12#include <power/regulator.h>
  13#include <spl.h>
  14
  15DECLARE_GLOBAL_DATA_PTR;
  16
  17int board_init(void)
  18{
  19        struct udevice *pinctrl, *regulator;
  20        int ret;
  21
  22        /*
  23         * The PWM do not have decicated interrupt number in dts and can
  24         * not get periph_id by pinctrl framework, so let's init them here.
  25         * The PWM2 and PWM3 are for pwm regulater.
  26         */
  27        ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
  28        if (ret) {
  29                debug("%s: Cannot find pinctrl device\n", __func__);
  30                goto out;
  31        }
  32
  33        /* Enable pwm0 for panel backlight */
  34        ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM0);
  35        if (ret) {
  36                debug("%s PWM0 pinctrl init fail! (ret=%d)\n", __func__, ret);
  37                goto out;
  38        }
  39
  40        ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2);
  41        if (ret) {
  42                debug("%s PWM2 pinctrl init fail!\n", __func__);
  43                goto out;
  44        }
  45
  46        ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM3);
  47        if (ret) {
  48                debug("%s PWM3 pinctrl init fail!\n", __func__);
  49                goto out;
  50        }
  51
  52        ret = regulators_enable_boot_on(false);
  53        if (ret)
  54                debug("%s: Cannot enable boot on regulator\n", __func__);
  55
  56        ret = regulator_get_by_platname("vcc5v0_host", &regulator);
  57        if (ret) {
  58                debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
  59                goto out;
  60        }
  61
  62        ret = regulator_set_enable(regulator, true);
  63        if (ret) {
  64                debug("%s vcc5v0-host-en set fail!\n", __func__);
  65                goto out;
  66        }
  67
  68out:
  69        return 0;
  70}
  71
  72void spl_board_init(void)
  73{
  74        struct udevice *pinctrl;
  75        int ret;
  76
  77        ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
  78        if (ret) {
  79                debug("%s: Cannot find pinctrl device\n", __func__);
  80                goto err;
  81        }
  82
  83        /* Enable debug UART */
  84        ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART_DBG);
  85        if (ret) {
  86                debug("%s: Failed to set up console UART\n", __func__);
  87                goto err;
  88        }
  89
  90        preloader_console_init();
  91        return;
  92err:
  93        printf("%s: Error %d\n", __func__, ret);
  94
  95        /* No way to report error here */
  96        hang();
  97}
  98