| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com> |
| */ |
| |
| #include <common.h> |
| #include <init.h> |
| #include <asm/fsp/fsp_support.h> |
| #include <asm/global_data.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)) { |
| struct mrc_output *mrc = &gd->arch.mrc[MRC_TYPE_NORMAL]; |
| |
| mrc->buf = fsp_get_nvs_data(gd->arch.hob_list, &mrc->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); |
| } |