28 lines
658 B
C
28 lines
658 B
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2009 Lemote Inc.
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* Author: Wu Zhangjin, wuzhangjin@gmail.com
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*/
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#include <linux/err.h>
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#include <linux/smp.h>
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#include <linux/platform_device.h>
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static struct platform_device loongson2_cpufreq_device = {
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.name = "loongson2_cpufreq",
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.id = -1,
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};
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static int __init loongson2_cpufreq_init(void)
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{
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struct cpuinfo_mips *c = ¤t_cpu_data;
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/* Only 2F revision and it's successors support CPUFreq */
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if ((c->processor_id & PRID_REV_MASK) >= PRID_REV_LOONGSON2F)
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return platform_device_register(&loongson2_cpufreq_device);
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return -ENODEV;
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}
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arch_initcall(loongson2_cpufreq_init);
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