/* * This file is part of the coreboot project. * * Copyright (C) 2013 Google, Inc. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and * may be copied, distributed, and modified under those terms. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include <cbfs.h> #include <string.h> #include <console/console.h> /* Simple memory-mapped ROM emulation. */ static int emu_rom_open(struct cbfs_media *media) { return 0; } static void *emu_rom_map(struct cbfs_media *media, size_t offset, size_t count) { return (void*)(offset + CONFIG_BOOTBLOCK_BASE); } static void *emu_rom_unmap(struct cbfs_media *media, const void *address) { return NULL; } static size_t emu_rom_read(struct cbfs_media *media, void *dest, size_t offset, size_t count) { void *ptr = emu_rom_map(media, offset, count); memcpy(dest, ptr, count); emu_rom_unmap(media, ptr); return count; } static int emu_rom_close(struct cbfs_media *media) { return 0; } int init_emu_rom_cbfs_media(struct cbfs_media *media); int init_emu_rom_cbfs_media(struct cbfs_media *media) { media->open = emu_rom_open; media->close = emu_rom_close; media->map = emu_rom_map; media->unmap = emu_rom_unmap; media->read = emu_rom_read; return 0; } int init_default_cbfs_media(struct cbfs_media *media) { return init_emu_rom_cbfs_media(media); }