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
  11 DECLARE_GLOBAL_DATA_PTR;
  12
  13 void handoff_save_dram(struct spl_handoff *ho)
  14 {
  15         ho->ram_size = gd->ram_size;
  16 #ifdef CONFIG_NR_DRAM_BANKS
  17         {
  18                 struct bd_info *bd = gd->bd;
  19                 int i;
  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 #endif
  27 }
  28
  29 void handoff_load_dram_size(struct spl_handoff *ho)
  30 {
  31         gd->ram_size = ho->ram_size;
  32 }
  33
  34 void handoff_load_dram_banks(struct spl_handoff *ho)
  35 {
  36 #ifdef CONFIG_NR_DRAM_BANKS
  37         {
  38                 struct bd_info *bd = gd->bd;
  39                 int i;
  40
  41                 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
  42                         bd->bi_dram[i].start = ho->ram_bank[i].start;
  43                         bd->bi_dram[i].size = ho->ram_bank[i].size;
  44                 }
  45         }
  46 #endif
  47 }