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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2010-01-22 10:55:25 +0300
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2010-01-22 10:55:25 +0300
commit7755726fe90a8b253659756e6de68c1a55aa427f (patch)
treea3523fa77e07854db3b8089e3066a55ea997060c /arch/mips/loongson/common/platform.c
parent3bf127637e22ddf95e67e10a23c339cee3d52429 (diff)
parent92dcffb916d309aa01778bf8963a6932e4014d07 (diff)
downloadlinux-7755726fe90a8b253659756e6de68c1a55aa427f.tar.xz
Merge commit 'v2.6.33-rc5' into next
Diffstat (limited to 'arch/mips/loongson/common/platform.c')
-rw-r--r--arch/mips/loongson/common/platform.c30
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);