diff options
Diffstat (limited to 'src/soc/nvidia/tegra132/ccplex.c')
-rw-r--r-- | src/soc/nvidia/tegra132/ccplex.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/soc/nvidia/tegra132/ccplex.c b/src/soc/nvidia/tegra132/ccplex.c new file mode 100644 index 0000000000..b569bd2124 --- /dev/null +++ b/src/soc/nvidia/tegra132/ccplex.c @@ -0,0 +1,61 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <string.h> +#include <console/console.h> +#include <arch/io.h> +#include <cbfs.h> +#include <soc/addressmap.h> +#include "ccplex.h" +#include "mc.h" + +#define MTS_FILE_NAME "mts" + +int ccplex_load_mts(void) +{ + struct cbfs_file file; + ssize_t offset; + size_t nread; + /* + * MTS location is hard coded to this magic address. The hardware will + * take the MTS from this location and place it in the final resting + * place in the carveout region. + */ + void * const mts = (void *)(uintptr_t)MTS_LOAD_ADDRESS; + struct cbfs_media *media = CBFS_DEFAULT_MEDIA; + + offset = cbfs_locate_file(media, &file, MTS_FILE_NAME); + if (offset < 0) { + printk(BIOS_DEBUG, "MTS file not found: %s\n", MTS_FILE_NAME); + return -1; + } + + /* Read MTS file into the carveout region. */ + nread = cbfs_read(media, mts, offset, file.len); + + if (nread != file.len) { + printk(BIOS_DEBUG, "MTS bytes read (%zu) != file length(%u)!\n", + nread, file.len); + return -1; + } + + printk(BIOS_DEBUG, "MTS: %zu bytes loaded @ %p\n", nread, mts); + + return 0; +} |