38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* Copyright 2014-2016 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied.
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* See the License for the specific language governing permissions and
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* imitations under the License.
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*/
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#ifndef __XSCOM_H
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#define __XSCOM_H
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#include <stdint.h>
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extern int xscom_read(uint32_t chip_id, uint64_t addr, uint64_t *val);
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extern int xscom_write(uint32_t chip_id, uint64_t addr, uint64_t val);
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extern int xscom_read_ex(uint32_t ex_target_id, uint64_t addr, uint64_t *val);
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extern int xscom_write_ex(uint32_t ex_target_id, uint64_t addr, uint64_t val);
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extern void xscom_for_each_chip(void (*cb)(uint32_t chip_id));
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extern bool xscom_readable(uint64_t addr);
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extern uint32_t xscom_init(void);
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#ifndef PPC_BIT
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#define PPC_BIT(bit) (0x8000000000000000UL >> (bit))
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#endif
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#endif /* __XSCOM_H */
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