diff options
Diffstat (limited to 'roms/skiboot/external/xscom-utils/xscom.h')
| -rw-r--r-- | roms/skiboot/external/xscom-utils/xscom.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/roms/skiboot/external/xscom-utils/xscom.h b/roms/skiboot/external/xscom-utils/xscom.h new file mode 100644 index 000000000..05b8f543b --- /dev/null +++ b/roms/skiboot/external/xscom-utils/xscom.h @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later +/* Copyright 2014-2017 IBM Corp. + */ + +#ifndef __XSCOM_H +#define __XSCOM_H + +#include <stdint.h> + +extern int xscom_read(uint32_t chip_id, uint64_t addr, uint64_t *val); +extern int xscom_write(uint32_t chip_id, uint64_t addr, uint64_t val); + +extern int xscom_read_ex(uint32_t ex_target_id, uint64_t addr, uint64_t *val); +extern int xscom_write_ex(uint32_t ex_target_id, uint64_t addr, uint64_t val); + +extern void xscom_for_each_chip(void (*cb)(uint32_t chip_id)); + +extern bool xscom_readable(uint64_t addr); + +extern uint32_t xscom_init(void); + +#ifndef PPC_BIT +#define PPC_BIT(bit) (0x8000000000000000UL >> (bit)) +#endif + +#endif /* __XSCOM_H */ |