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Diffstat (limited to 'roms/skiboot/include/chiptod.h')
| -rw-r--r-- | roms/skiboot/include/chiptod.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/roms/skiboot/include/chiptod.h b/roms/skiboot/include/chiptod.h new file mode 100644 index 000000000..50b6ab9b8 --- /dev/null +++ b/roms/skiboot/include/chiptod.h @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later +/* + * The ChipTOD is the HW facility that maintains a synchronized + * time base across the fabric. + * + * Copyright 2013-2019 IBM Corp. + */ + +#ifndef __CHIPTOD_H +#define __CHIPTOD_H + +enum chiptod_topology { + chiptod_topo_unknown = -1, + chiptod_topo_primary = 0, + chiptod_topo_secondary = 1, +}; + +extern void chiptod_init(void); +extern bool chiptod_wakeup_resync(void); +extern int chiptod_recover_tb_errors(bool *out_resynced); +extern bool tfmr_recover_local_errors(uint64_t tfmr); +extern bool recover_corrupt_tfmr(void); +extern void tfmr_cleanup_core_errors(uint64_t tfmr); +extern int tfmr_clear_core_errors(uint64_t tfmr); +extern bool chiptod_adjust_topology(enum chiptod_topology topo, bool enable); +extern bool chiptod_capp_timebase_sync(unsigned int chip_id, uint32_t tfmr_addr, + uint32_t tb_addr, uint32_t offset); +extern int chiptod_recover_tod_errors(void); + +#endif /* __CHIPTOD_H */ |