xref: /openbmc/u-boot/arch/x86/cpu/efi/sdram.c (revision 9b03f802)
1  /*
2   * Copyright (c) 2015 Google, Inc
3   *
4   * SPDX-License-Identifier:	GPL-2.0+
5   */
6  
7  #include <common.h>
8  #include <efi.h>
9  #include <asm/u-boot-x86.h>
10  
11  DECLARE_GLOBAL_DATA_PTR;
12  
13  ulong board_get_usable_ram_top(ulong total_size)
14  {
15  	return (ulong)efi_get_ram_base() + gd->ram_size;
16  }
17  
18  int dram_init(void)
19  {
20  	/* gd->ram_size is set as part of EFI init */
21  
22  	return 0;
23  }
24  
25  void dram_init_banksize(void)
26  {
27  	gd->bd->bi_dram[0].start = efi_get_ram_base();
28  	gd->bd->bi_dram[0].size = CONFIG_EFI_RAM_SIZE;
29  }
30