Aaron Durbin (adurbin@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8709
-gerrit
commit 31fd9cd52dcbb42f123a74e999f52cbdb70dc54e Author: Aaron Durbin adurbin@chromium.org Date: Tue Mar 17 13:17:06 2015 -0500
loaders: add run_romstage() function to bootblock
Provide a common run_romstage() function to be used by bootblocks to load and run romstage. This is similar to run_ramstage() in that it provides a single entry point for doing the necessary work of loading and running romstage.
Change-Id: Ia9643cc091f97a836cf5caefdff8df4a3443df4c Signed-off-by: Aaron Durbin adurbin@chromium.org --- src/include/program_loading.h | 6 +++++ src/lib/loaders/Makefile.inc | 1 + src/lib/loaders/load_and_run_romstage.c | 42 +++++++++++++++++++++++++++++++++ 3 files changed, 49 insertions(+)
diff --git a/src/include/program_loading.h b/src/include/program_loading.h index 8ceebc1..32f80e1 100644 --- a/src/include/program_loading.h +++ b/src/include/program_loading.h @@ -22,6 +22,12 @@ #include <stdint.h> #include <stddef.h>
+/************************ + * ROMSTAGE LOADING * + ************************/ + +/* Run romstage from bootblock. */ +void run_romstage(void);
/************************ * RAMSTAGE LOADING * diff --git a/src/lib/loaders/Makefile.inc b/src/lib/loaders/Makefile.inc index 356e47e..71d9c44 100644 --- a/src/lib/loaders/Makefile.inc +++ b/src/lib/loaders/Makefile.inc @@ -17,6 +17,7 @@ # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA #
+bootblock-y += load_and_run_romstage.c romstage-y += cbfs_ramstage_loader.c romstage-y += load_and_run_ramstage.c ramstage-y += cbfs_payload_loader.c diff --git a/src/lib/loaders/load_and_run_romstage.c b/src/lib/loaders/load_and_run_romstage.c new file mode 100644 index 0000000..ebc1243 --- /dev/null +++ b/src/lib/loaders/load_and_run_romstage.c @@ -0,0 +1,42 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 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 <stdlib.h> +#include <console/console.h> +#include <arch/stages.h> +#include <cbfs.h> +#include <halt.h> +#include <program_loading.h> + +void run_romstage(void) +{ + void *entry; + + entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, + CONFIG_CBFS_PREFIX "/romstage"); + + if (entry == (void *)-1) { + if (IS_ENABLED(CONFIG_BOOTBLOCK_CONSOLE)) + die("Couldn't load romstage.\n"); + halt(); + } + + stage_exit(entry); +}