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
  18 #include <asm/io.h>
  19 #include <asm/arch/stm32.h>
  20
  21 DECLARE_GLOBAL_DATA_PTR;
  22
  23 int dram_init(void)
  24 {
  25         int rv;
  26         struct udevice *dev;
  27
  28         rv = uclass_get_device(UCLASS_RAM, 0, &dev);
  29         if (rv) {
  30                 debug("DRAM init failed: %d\n", rv);
  31                 return rv;
  32         }
  33
  34         if (fdtdec_setup_mem_size_base() != 0)
  35                 rv = -EINVAL;
  36
  37         return rv;
  38 }
  39
  40 int dram_init_banksize(void)
  41 {
  42         fdtdec_setup_memory_banksize();
  43
  44         return 0;
  45 }
  46
  47 u32 get_board_rev(void)
  48 {
  49         return 0;
  50 }
  51
  52 int board_early_init_f(void)
  53 {
  54         return 0;
  55 }
  56
  57 int board_init(void)
  58 {
  59         gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
  60
  61         return 0;
  62 }
  63
  64 #ifdef CONFIG_MISC_INIT_R
  65 int misc_init_r(void)
  66 {
  67         char serialno[25];
  68         uint32_t u_id_low, u_id_mid, u_id_high;
  69
  70         if (!env_get("serial#")) {
  71                 u_id_low  = readl(&STM32_U_ID->u_id_low);
  72                 u_id_mid  = readl(&STM32_U_ID->u_id_mid);
  73                 u_id_high = readl(&STM32_U_ID->u_id_high);
  74                 sprintf(serialno, "%08x%08x%08x",
  75                         u_id_high, u_id_mid, u_id_low);
  76                 env_set("serial#", serialno);
  77         }
  78
  79         return 0;
  80 }
  81 #endif