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70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */
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#ifndef LIBFDT_ENV_H
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#define LIBFDT_ENV_H
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/*
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* libfdt - Flat Device Tree manipulation
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* Copyright (C) 2006 David Gibson, IBM Corporation.
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* Copyright 2012 Kim Phillips, Freescale Semiconductor.
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*/
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#ifdef __CHECKER__
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#define FDT_FORCE __attribute__((force))
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#define FDT_BITWISE __attribute__((bitwise))
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#else
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#define FDT_FORCE
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#define FDT_BITWISE
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#endif
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typedef uint16_t FDT_BITWISE fdt16_t;
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typedef uint32_t FDT_BITWISE fdt32_t;
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typedef uint64_t FDT_BITWISE fdt64_t;
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#define EXTRACT_BYTE(x, n) ((unsigned long long)((uint8_t *)&x)[n])
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#define CPU_TO_FDT16(x) ((EXTRACT_BYTE(x, 0) << 8) | EXTRACT_BYTE(x, 1))
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#define CPU_TO_FDT32(x) ((EXTRACT_BYTE(x, 0) << 24) | (EXTRACT_BYTE(x, 1) << 16) | \
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(EXTRACT_BYTE(x, 2) << 8) | EXTRACT_BYTE(x, 3))
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#define CPU_TO_FDT64(x) ((EXTRACT_BYTE(x, 0) << 56) | (EXTRACT_BYTE(x, 1) << 48) | \
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(EXTRACT_BYTE(x, 2) << 40) | (EXTRACT_BYTE(x, 3) << 32) | \
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(EXTRACT_BYTE(x, 4) << 24) | (EXTRACT_BYTE(x, 5) << 16) | \
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(EXTRACT_BYTE(x, 6) << 8) | EXTRACT_BYTE(x, 7))
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static inline uint16_t fdt16_to_cpu(fdt16_t x)
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{
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return (FDT_FORCE uint16_t)CPU_TO_FDT16(x);
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}
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static inline fdt16_t cpu_to_fdt16(uint16_t x)
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{
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return (FDT_FORCE fdt16_t)CPU_TO_FDT16(x);
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}
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static inline uint32_t fdt32_to_cpu(fdt32_t x)
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{
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return (FDT_FORCE uint32_t)CPU_TO_FDT32(x);
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}
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static inline fdt32_t cpu_to_fdt32(uint32_t x)
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{
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return (FDT_FORCE fdt32_t)CPU_TO_FDT32(x);
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}
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static inline uint64_t fdt64_to_cpu(fdt64_t x)
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{
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return (FDT_FORCE uint64_t)CPU_TO_FDT64(x);
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}
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static inline fdt64_t cpu_to_fdt64(uint64_t x)
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{
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return (FDT_FORCE fdt64_t)CPU_TO_FDT64(x);
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}
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#undef CPU_TO_FDT64
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#undef CPU_TO_FDT32
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#undef CPU_TO_FDT16
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#undef EXTRACT_BYTE
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#endif /* LIBFDT_ENV_H */
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