common/init/handoff.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Passing basic information from SPL to U-Boot proper
   4  *
   5  * Copyright 2018 Google, Inc
   6  */
   7
   8 #include <common.h>
   9 #include <handoff.h>
  10 #include <asm/global_data.h>
  11
  12 DECLARE_GLOBAL_DATA_PTR;
  13
  14 void handoff_save_dram(struct spl_handoff *ho)
  15 {
  16         struct bd_info *bd = gd->bd;
  17         int i;
  18
  19         ho->ram_size = gd->ram_size;
  20
  21         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
  22                 ho->ram_bank[i].start = bd->bi_dram[i].start;
  23                 ho->ram_bank[i].size = bd->bi_dram[i].size;
  24         }
  25 }
  26
  27 void handoff_load_dram_size(struct spl_handoff *ho)
  28 {
  29         gd->ram_size = ho->ram_size;
  30 }
  31
  32 void handoff_load_dram_banks(struct spl_handoff *ho)
  33 {
  34         struct bd_info *bd = gd->bd;
  35         int i;
  36
  37         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
  38                 bd->bi_dram[i].start = ho->ram_bank[i].start;
  39                 bd->bi_dram[i].size = ho->ram_bank[i].size;
  40         }
  41 }