board/st/stm32f469-discovery/stm32f469-discovery.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) STMicroelectronics SA 2017
   4  * Author(s): Patrice CHOTARD, <[email protected]> for STMicroelectronics.
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <env.h>
  10 #include <init.h>
  11
  12 #include <asm/io.h>
  13 #include <asm/arch/stm32.h>
  14
  15 DECLARE_GLOBAL_DATA_PTR;
  16
  17 int dram_init(void)
  18 {
  19         int rv;
  20         struct udevice *dev;
  21
  22         rv = uclass_get_device(UCLASS_RAM, 0, &dev);
  23         if (rv) {
  24                 debug("DRAM init failed: %d\n", rv);
  25                 return rv;
  26         }
  27
  28         if (fdtdec_setup_mem_size_base() != 0)
  29                 rv = -EINVAL;
  30
  31         return rv;
  32 }
  33
  34 int dram_init_banksize(void)
  35 {
  36         fdtdec_setup_memory_banksize();
  37
  38         return 0;
  39 }
  40
  41 u32 get_board_rev(void)
  42 {
  43         return 0;
  44 }
  45
  46 int board_early_init_f(void)
  47 {
  48         return 0;
  49 }
  50
  51 int board_init(void)
  52 {
  53         gd->bd->bi_boot_params = gd->bd->bi_dram[0].start + 0x100;
  54
  55         return 0;
  56 }
  57
  58 #ifdef CONFIG_MISC_INIT_R
  59 int misc_init_r(void)
  60 {
  61         char serialno[25];
  62         u32 u_id_low, u_id_mid, u_id_high;
  63
  64         if (!env_get("serial#")) {
  65                 u_id_low  = readl(&STM32_U_ID->u_id_low);
  66                 u_id_mid  = readl(&STM32_U_ID->u_id_mid);
  67                 u_id_high = readl(&STM32_U_ID->u_id_high);
  68                 sprintf(serialno, "%08x%08x%08x",
  69                         u_id_high, u_id_mid, u_id_low);
  70                 env_set("serial#", serialno);
  71         }
  72
  73         return 0;
  74 }
  75 #endif