37 lines
985 B
C
37 lines
985 B
C
|
// SPDX-License-Identifier: GPL-2.0+
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <asm/fsp/fsp_support.h>
|
||
|
|
|
||
|
|
int dram_init(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
/* The FSP has already set up DRAM, so grab the info we need */
|
||
|
|
ret = fsp_scan_for_ram_size();
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
if (IS_ENABLED(CONFIG_ENABLE_MRC_CACHE))
|
||
|
|
gd->arch.mrc_output = fsp_get_nvs_data(gd->arch.hob_list,
|
||
|
|
&gd->arch.mrc_output_len);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This function looks for the highest region of memory lower than 4GB which
|
||
|
|
* has enough space for U-Boot where U-Boot is aligned on a page boundary.
|
||
|
|
* It overrides the default implementation found elsewhere which simply
|
||
|
|
* picks the end of ram, wherever that may be. The location of the stack,
|
||
|
|
* the relocation address, and how far U-Boot is moved by relocation are
|
||
|
|
* set in the global data structure.
|
||
|
|
*/
|
||
|
|
ulong board_get_usable_ram_top(ulong total_size)
|
||
|
|
{
|
||
|
|
return fsp_get_usable_lowmem_top(gd->arch.hob_list);
|
||
|
|
}
|