blob: 49323158bfbeee1f29489c25f73c943408b1df75 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
/* 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 */
|