xref: /openbmc/u-boot/arch/x86/cpu/efi/sdram.c (revision eb5ba3ae)
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 int 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 	return 0;
31 }
32