diff options
Diffstat (limited to 'src/soc/intel/apollolake/include')
-rw-r--r-- | src/soc/intel/apollolake/include/soc/smm.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/include/soc/smm.h b/src/soc/intel/apollolake/include/soc/smm.h new file mode 100644 index 0000000000..07749745d9 --- /dev/null +++ b/src/soc/intel/apollolake/include/soc/smm.h @@ -0,0 +1,38 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2016 Intel Corp. + * (Written by Lance Zhao <lijian.zhao@intel.com> for 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; 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. + */ + +#ifndef _SOC_SMM_H_ +#define _SOC_SMM_H_ + +#include <stdint.h> + +/* These helpers are for performing SMM relocation. */ +void southbridge_clear_smi_status(void); + +/* + * The initialization of the southbridge is split into 2 compoments. One is + * for clearing the state in the SMM registers. The other is for enabling + * SMIs. + */ +void southbridge_smm_clear_state(void); +void southbridge_smm_enable_smi(void); + + +/* Fills in the arguments for the entire SMM region covered by chipset + * protections. e.g. TSEG. */ +void smm_region(void **start, size_t *size); +#endif |