board/st/stm32f429-evaluation/stm32f429-evaluation.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
   4  * Author(s): Patrice Chotard, <patrice.chotard@foss.st.com> for STMicroelectronics.
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <env.h>
  10 #include <init.h>
  11 #include <log.h>
  12 #include <asm/global_data.h>
  13
  14 #include <asm/io.h>
  15 #include <asm/arch/stm32.h>
  16
  17 DECLARE_GLOBAL_DATA_PTR;
  18
  19 int dram_init(void)
  20 {
  21         int rv;
  22         struct udevice *dev;
  23
  24         rv = uclass_get_device(UCLASS_RAM, 0, &dev);
  25         if (rv) {
  26                 debug("DRAM init failed: %d\n", rv);
  27                 return rv;
  28         }
  29
  30         if (fdtdec_setup_mem_size_base() != 0)
  31                 rv = -EINVAL;
  32
  33         return rv;
  34 }
  35
  36 int dram_init_banksize(void)
  37 {
  38         fdtdec_setup_memory_banksize();
  39
  40         return 0;
  41 }
  42
  43 int board_init(void)
  44 {
  45         gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
  46
  47         return 0;
  48 }
  49
  50 #ifdef CONFIG_MISC_INIT_R
  51 int misc_init_r(void)
  52 {
  53         char serialno[25];
  54         u32 u_id_low, u_id_mid, u_id_high;
  55
  56         if (!env_get("serial#")) {
  57                 u_id_low  = readl(&STM32_U_ID->u_id_low);
  58                 u_id_mid  = readl(&STM32_U_ID->u_id_mid);
  59                 u_id_high = readl(&STM32_U_ID->u_id_high);
  60                 sprintf(serialno, "%08x%08x%08x",
  61                         u_id_high, u_id_mid, u_id_low);
  62                 env_set("serial#", serialno);
  63         }
  64
  65         return 0;
  66 }
  67 #endif