[adm5120] experimental support for 2.6.27

[openwrt/svn-archive/archive.git] / target / linux / adm5120 / files / arch / mips / adm5120 / common / clock.c

diff --git a/target/linux/adm5120/files/arch/mips/adm5120/common/clock.c b/target/linux/adm5120/files/arch/mips/adm5120/common/clock.c
new file mode 100644 (file)
index 0000000..d004309
--- /dev/null
+++ b/target/linux/adm5120/files/arch/mips/adm5120/common/clock.c
@@ -0,0 +1,62 @@
+/*
+ *  ADM5120 minimal CLK API implementation
+ *
+ *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  This file was based on the CLK API implementation in:
+ *     arch/mips/tx4938/toshiba_rbtx4938/setup.c
+ *     Copyright (C) 2000-2001 Toshiba Corporation
+ *     2003-2005 (c) MontaVista Software, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+
+#include <asm/mach-adm5120/adm5120_defs.h>
+
+struct clk {
+       unsigned long rate;
+};
+
+static struct clk uart_clk = {
+       .rate = ADM5120_UART_CLOCK
+};
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+       if (!strcmp(id, "UARTCLK"))
+               return &uart_clk;
+
+       return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+       return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+       return clk->rate;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);