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 #include <common.h>
   7 #include <dm.h>
   8 #include <dm/pinctrl.h>
   9 #include <dm/uclass-internal.h>
  10 #include <asm/arch/periph.h>
  11 #include <power/regulator.h>
  12
  13 DECLARE_GLOBAL_DATA_PTR;
  14
  15 int board_init(void)
  16 {
  17         struct udevice *pinctrl, *regulator;
  18         int ret;
  19
  20         /*
  21          * The PWM do not have decicated interrupt number in dts and can
  22          * not get periph_id by pinctrl framework, so let's init them here.
  23          * The PWM2 and PWM3 are for pwm regulater.
  24          */
  25         ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
  26         if (ret) {
  27                 debug("%s: Cannot find pinctrl device\n", __func__);
  28                 goto out;
  29         }
  30
  31         ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2);
  32         if (ret) {
  33                 debug("%s PWM2 pinctrl init fail!\n", __func__);
  34                 goto out;
  35         }
  36
  37         ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM3);
  38         if (ret) {
  39                 debug("%s PWM3 pinctrl init fail!\n", __func__);
  40                 goto out;
  41         }
  42
  43         /* rk3399 need init vdd_center to get correct output voltage */
  44         ret = regulator_get_by_platname("vdd_center", &regulator);
  45         if (ret)
  46                 debug("%s: Cannot get vdd_center regulator\n", __func__);
  47
  48         ret = regulator_get_by_platname("vcc5v0_host", &regulator);
  49         if (ret) {
  50                 debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
  51                 goto out;
  52         }
  53
  54         ret = regulator_set_enable(regulator, true);
  55         if (ret) {
  56                 debug("%s vcc5v0-host-en set fail!\n", __func__);
  57                 goto out;
  58         }
  59
  60 out:
  61         return 0;
  62 }
  63
  64 int dram_init(void)
  65 {
  66         gd->ram_size = 0x80000000;
  67         return 0;
  68 }
  69
  70 int dram_init_banksize(void)
  71 {
  72         /* Reserve 0x200000 for ATF bl31 */
  73         gd->bd->bi_dram[0].start = 0x200000;
  74         gd->bd->bi_dram[0].size = 0x7e000000;
  75
  76         return 0;
  77 }