git.sur5r.net Git - u-boot/blob - 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
  16 #include <asm/io.h>
  17 #include <asm/arch/stm32.h>
  18
  19 DECLARE_GLOBAL_DATA_PTR;
  20
  21 int dram_init(void)
  22 {
  23         int rv;
  24         struct udevice *dev;
  25
  26         rv = uclass_get_device(UCLASS_RAM, 0, &dev);
  27         if (rv) {
  28                 debug("DRAM init failed: %d\n", rv);
  29                 return rv;
  30         }
  31
  32         if (fdtdec_setup_memory_size() != 0)
  33                 rv = -EINVAL;
  34
  35         return rv;
  36 }
  37
  38 int dram_init_banksize(void)
  39 {
  40         fdtdec_setup_memory_banksize();
  41
  42         return 0;
  43 }
  44
  45 u32 get_board_rev(void)
  46 {
  47         return 0;
  48 }
  49
  50 int board_early_init_f(void)
  51 {
  52         return 0;
  53 }
  54
  55 int board_init(void)
  56 {
  57         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
  58
  59         return 0;
  60 }
  61
  62 #ifdef CONFIG_MISC_INIT_R
  63 int misc_init_r(void)
  64 {
  65         char serialno[25];
  66         uint32_t u_id_low, u_id_mid, u_id_high;
  67
  68         if (!env_get("serial#")) {
  69                 u_id_low  = readl(&STM32_U_ID->u_id_low);
  70                 u_id_mid  = readl(&STM32_U_ID->u_id_mid);
  71                 u_id_high = readl(&STM32_U_ID->u_id_high);
  72                 sprintf(serialno, "%08x%08x%08x",
  73                         u_id_high, u_id_mid, u_id_low);
  74                 env_set("serial#", serialno);
  75         }
  76
  77         return 0;
  78 }
  79 #endif