diff options
Diffstat (limited to 'src/arch/x86/include/cf9_reset.h')
| -rw-r--r-- | src/arch/x86/include/cf9_reset.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/arch/x86/include/cf9_reset.h b/src/arch/x86/include/cf9_reset.h new file mode 100644 index 0000000000..c0dcc92bd1 --- /dev/null +++ b/src/arch/x86/include/cf9_reset.h @@ -0,0 +1,40 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2017 Intel Corp. + * + * 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. + */ + +#ifndef X86_CF9_RESET_H +#define X86_CF9_RESET_H + +/* Reset control port */ +#define RST_CNT 0xcf9 +#define FULL_RST (1 << 3) +#define RST_CPU (1 << 2) +#define SYS_RST (1 << 1) + +/* Implement the bare reset, i.e. write to cf9. */ +void do_system_reset(void); +void do_full_reset(void); + +/* Called by functions below before reset. */ +#if IS_ENABLED(CONFIG_HAVE_CF9_RESET_PREPARE) +void cf9_reset_prepare(void); +#else +static inline void cf9_reset_prepare(void) {} +#endif + +/* Prepare for reset, run do_*_reset(), halt. */ +__noreturn void system_reset(void); +__noreturn void full_reset(void); + +#endif /* X86_CF9_RESET_H */ |