26 lines
701 B
C
26 lines
701 B
C
// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
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/* Copyright 2014-2017 IBM Corp.
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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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