board/theobroma-systems/puma_rk3399/puma-rk3399.c

   1 /*
   2  * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <misc.h>
   9 #include <ram.h>
  10 #include <dm/pinctrl.h>
  11 #include <dm/uclass-internal.h>
  12 #include <asm/arch/periph.h>
  13 #include <power/regulator.h>
  14 #include <u-boot/sha256.h>
  15
  16 DECLARE_GLOBAL_DATA_PTR;
  17
  18 #define RK3399_CPUID_OFF  0x7
  19 #define RK3399_CPUID_LEN  0x10
  20
  21 DECLARE_GLOBAL_DATA_PTR;
  22
  23 int board_init(void)
  24 {
  25         struct udevice *pinctrl, *regulator;
  26         int ret;
  27
  28         /*
  29          * The PWM does not have decicated interrupt number in dts and can
  30          * not get periph_id by pinctrl framework, so let's init them here.
  31          * The PWM2 and PWM3 are for pwm regulators.
  32          */
  33         ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
  34         if (ret) {
  35                 debug("%s: Cannot find pinctrl device\n", __func__);
  36                 goto out;
  37         }
  38
  39         ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2);
  40         if (ret) {
  41                 debug("%s PWM2 pinctrl init fail!\n", __func__);
  42                 goto out;
  43         }
  44
  45         /* rk3399 need to init vdd_center to get the correct output voltage */
  46         ret = regulator_get_by_platname("vdd_center", &regulator);
  47         if (ret)
  48                 debug("%s: Cannot get vdd_center regulator\n", __func__);
  49
  50         ret = regulator_get_by_platname("vcc5v0_host", &regulator);
  51         if (ret) {
  52                 debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
  53                 goto out;
  54         }
  55
  56         ret = regulator_set_enable(regulator, true);
  57         if (ret) {
  58                 debug("%s vcc5v0-host-en set fail!\n", __func__);
  59                 goto out;
  60         }
  61
  62 out:
  63         return 0;
  64 }
  65
  66 int dram_init(void)
  67 {
  68         struct ram_info ram;
  69         struct udevice *dev;
  70         int ret;
  71
  72         ret = uclass_get_device(UCLASS_RAM, 0, &dev);
  73         if (ret) {
  74                 debug("DRAM init failed: %d\n", ret);
  75                 return ret;
  76         }
  77         ret = ram_get_info(dev, &ram);
  78         if (ret) {
  79                 debug("Cannot get DRAM size: %d\n", ret);
  80                 return ret;
  81         }
  82         debug("SDRAM base=%llx, size=%x\n", ram.base, (unsigned int)ram.size);
  83         gd->ram_size = ram.size;
  84
  85         return 0;
  86 }
  87
  88 int dram_init_banksize(void)
  89 {
  90         /* Reserve 0x200000 for ATF bl31 */
  91         gd->bd->bi_dram[0].start = 0x200000;
  92         gd->bd->bi_dram[0].size = 0x7e000000;
  93
  94         return 0;
  95 }