board/st/stm32f429-discovery/stm32f429-discovery.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2011, 2012, 2013
   4  * Yuri Tikhonov, Emcraft Systems, yur@emcraft.com
   5  * Alexander Potashev, Emcraft Systems, aspotashev@emcraft.com
   6  * Vladimir Khusainov, Emcraft Systems, vlad@emcraft.com
   7  * Pavel Boldin, Emcraft Systems, paboldin@emcraft.com
   8  *
   9  * (C) Copyright 2015
  10  * Kamil Lulko, <kamil.lulko@gmail.com>
  11  */
  12
  13 #include <common.h>
  14 #include <dm.h>
  15 #include <env.h>
  16 #include <init.h>
  17 #include <log.h>
  18
  19 #include <asm/io.h>
  20 #include <asm/arch/stm32.h>
  21
  22 DECLARE_GLOBAL_DATA_PTR;
  23
  24 int dram_init(void)
  25 {
  26         int rv;
  27         struct udevice *dev;
  28
  29         rv = uclass_get_device(UCLASS_RAM, 0, &dev);
  30         if (rv) {
  31                 debug("DRAM init failed: %d\n", rv);
  32                 return rv;
  33         }
  34
  35         if (fdtdec_setup_mem_size_base() != 0)
  36                 rv = -EINVAL;
  37
  38         return rv;
  39 }
  40
  41 int dram_init_banksize(void)
  42 {
  43         fdtdec_setup_memory_banksize();
  44
  45         return 0;
  46 }
  47
  48 u32 get_board_rev(void)
  49 {
  50         return 0;
  51 }
  52
  53 int board_early_init_f(void)
  54 {
  55         return 0;
  56 }
  57
  58 int board_init(void)
  59 {
  60         gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
  61
  62         return 0;
  63 }
  64
  65 #ifdef CONFIG_MISC_INIT_R
  66 int misc_init_r(void)
  67 {
  68         char serialno[25];
  69         uint32_t u_id_low, u_id_mid, u_id_high;
  70
  71         if (!env_get("serial#")) {
  72                 u_id_low  = readl(&STM32_U_ID->u_id_low);
  73                 u_id_mid  = readl(&STM32_U_ID->u_id_mid);
  74                 u_id_high = readl(&STM32_U_ID->u_id_high);
  75                 sprintf(serialno, "%08x%08x%08x",
  76                         u_id_high, u_id_mid, u_id_low);
  77                 env_set("serial#", serialno);
  78         }
  79
  80         return 0;
  81 }
  82 #endif