| // 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 */ |
