39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
|
/* Copyright 2014-2016 IBM Corp.
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||
|
|
* implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* imitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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 */
|