xref: /OK3568_Linux_fs/u-boot/arch/x86/cpu/efi/sdram.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * Copyright (c) 2015 Google, Inc
3*4882a593Smuzhiyun  *
4*4882a593Smuzhiyun  * SPDX-License-Identifier:	GPL-2.0+
5*4882a593Smuzhiyun  */
6*4882a593Smuzhiyun 
7*4882a593Smuzhiyun #include <common.h>
8*4882a593Smuzhiyun #include <efi.h>
9*4882a593Smuzhiyun #include <asm/u-boot-x86.h>
10*4882a593Smuzhiyun 
11*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR;
12*4882a593Smuzhiyun 
board_get_usable_ram_top(ulong total_size)13*4882a593Smuzhiyun ulong board_get_usable_ram_top(ulong total_size)
14*4882a593Smuzhiyun {
15*4882a593Smuzhiyun 	return (ulong)efi_get_ram_base() + gd->ram_size;
16*4882a593Smuzhiyun }
17*4882a593Smuzhiyun 
dram_init(void)18*4882a593Smuzhiyun int dram_init(void)
19*4882a593Smuzhiyun {
20*4882a593Smuzhiyun 	/* gd->ram_size is set as part of EFI init */
21*4882a593Smuzhiyun 
22*4882a593Smuzhiyun 	return 0;
23*4882a593Smuzhiyun }
24*4882a593Smuzhiyun 
dram_init_banksize(void)25*4882a593Smuzhiyun int dram_init_banksize(void)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun 	gd->bd->bi_dram[0].start = efi_get_ram_base();
28*4882a593Smuzhiyun 	gd->bd->bi_dram[0].size = CONFIG_EFI_RAM_SIZE;
29*4882a593Smuzhiyun 
30*4882a593Smuzhiyun 	return 0;
31*4882a593Smuzhiyun }
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