board/samsung/smdk5250/smdk5250_spl.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2012 The Chromium OS Authors.
   4  */
   5
   6 #include <common.h>
   7 #include <asm/arch/cpu.h>
   8 #include <asm/arch/spl.h>
   9 #include <asm/arch/clk.h>
  10
  11 #define SIGNATURE       0xdeadbeef
  12
  13 /* Parameters of early board initialization in SPL */
  14 static struct spl_machine_param machine_param
  15                 __attribute__((section(".machine_param"))) = {
  16         .signature      = SIGNATURE,
  17         .version        = 1,
  18         .params         = "vmubfasirM",
  19         .size           = sizeof(machine_param),
  20
  21         .mem_iv_size    = 0x1f,
  22         .mem_type       = DDR_MODE_DDR3,
  23
  24         /*
  25          * Set uboot_size to 0x100000 bytes.
  26          *
  27          * This is an overly conservative value chosen to accommodate all
  28          * possible U-Boot image.  You are advised to set this value to a
  29          * smaller realistic size via scripts that modifies the .machine_param
  30          * section of output U-Boot image.
  31          */
  32         .uboot_size     = 0x100000,
  33
  34         .boot_source    = BOOT_MODE_OM,
  35         .frequency_mhz  = 800,
  36         .arm_freq_mhz   = 1700,
  37         .serial_base    = 0x12c30000,
  38         .i2c_base       = 0x12c60000,
  39         .mem_manuf      = MEM_MANUF_SAMSUNG,
  40 };
  41
  42 struct spl_machine_param *spl_get_machine_params(void)
  43 {
  44         if (machine_param.signature != SIGNATURE) {
  45                 /* Will hang if SIGNATURE dont match */
  46                 while (1)
  47                         ;
  48         }
  49
  50         return &machine_param;
  51 }