diff options
Diffstat (limited to 'common/reset_source.c')
-rw-r--r-- | common/reset_source.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/common/reset_source.c b/common/reset_source.c new file mode 100644 index 0000000000..2a7f9ff6cc --- /dev/null +++ b/common/reset_source.c @@ -0,0 +1,44 @@ +/* + * (C) Copyright 2012 Juergen Beisert - <kernel@pengutronix.de> + * + * 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; either version 2 of + * the License, or (at your option) any later version. + * + * 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 <common.h> +#include <init.h> +#include <environment.h> +#include <globalvar.h> +#include <reset_source.h> + +static const char * const reset_src_names[] = { + [RESET_UKWN] = "unknown", + [RESET_POR] = "POR", + [RESET_RST] = "RST", + [RESET_WDG] = "WDG", + [RESET_WKE] = "WKE", + [RESET_JTAG] = "JTAG", +}; + +void set_reset_source(enum reset_src_type st) +{ + setenv("global.system.reset", reset_src_names[st]); +} +EXPORT_SYMBOL(set_reset_source); + +/* ensure this runs after the 'global' device is already registerd */ +static int init_reset_source(void) +{ + globalvar_add_simple("system.reset"); + set_reset_source(RESET_UKWN); + return 0; +} + +coredevice_initcall(init_reset_source); |