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

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