1 files changed, 30 insertions, 0 deletions

diff --git a/arch/mips/loongson/common/platform.c b/arch/mips/loongson/common/platform.c
new file mode 100644
index 000000000000..be81777eb94d
--- /dev/null
+++ b/arch/mips/loongson/common/platform.c
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2009 Lemote Inc.
+ * Author: Wu Zhangjin, wuzj@lemote.com
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
+static struct platform_device loongson2_cpufreq_device = {
+        .name = "loongson2_cpufreq",
+        .id = -1,
+};
+
+static int __init loongson2_cpufreq_init(void)
+{
+        struct cpuinfo_mips *c = &current_cpu_data;
+
+        /* Only 2F revision and it's successors support CPUFreq */
+        if ((c->processor_id & PRID_REV_MASK) >= PRID_REV_LOONGSON2F)
+                return platform_device_register(&loongson2_cpufreq_device);
+
+        return -ENODEV;
+}
+
+arch_initcall(loongson2_cpufreq_init);