forked from luck/tmp_suning_uos_patched
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
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/*
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* Copyright (C) 2016 Imagination Technologies
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* Author: Paul Burton <paul.burton@imgtec.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef __MIPS_ASM_MACHINE_H__
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#define __MIPS_ASM_MACHINE_H__
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#include <linux/libfdt.h>
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#include <linux/of.h>
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struct mips_machine {
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const struct of_device_id *matches;
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const void *fdt;
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bool (*detect)(void);
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const void *(*fixup_fdt)(const void *fdt, const void *match_data);
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unsigned int (*measure_hpt_freq)(void);
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};
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extern long __mips_machines_start;
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extern long __mips_machines_end;
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#define MIPS_MACHINE(name) \
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static const struct mips_machine __mips_mach_##name \
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__used __section(.mips.machines.init)
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#define for_each_mips_machine(mach) \
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for ((mach) = (struct mips_machine *)&__mips_machines_start; \
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(mach) < (struct mips_machine *)&__mips_machines_end; \
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(mach)++)
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/**
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* mips_machine_is_compatible() - check if a machine is compatible with an FDT
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* @mach: the machine struct to check
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* @fdt: the FDT to check for compatibility with
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*
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* Check whether the given machine @mach is compatible with the given flattened
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* device tree @fdt, based upon the compatibility property of the root node.
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*
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* Return: the device id matched if any, else NULL
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*/
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static inline const struct of_device_id *
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mips_machine_is_compatible(const struct mips_machine *mach, const void *fdt)
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{
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const struct of_device_id *match;
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if (!mach->matches)
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return NULL;
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for (match = mach->matches; match->compatible; match++) {
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if (fdt_node_check_compatible(fdt, 0, match->compatible) == 0)
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return match;
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}
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return NULL;
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}
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#endif /* __MIPS_ASM_MACHINE_H__ */
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