uses AMBA PL010 driver for the serial ports from now

[openwrt/openwrt.git] / target / linux / adm5120-2.6 / files / arch / mips / adm5120 / clock.c

diff --git a/target/linux/adm5120-2.6/files/arch/mips/adm5120/clock.c b/target/linux/adm5120-2.6/files/arch/mips/adm5120/clock.c
new file mode 100644 (file)
index 0000000..b1b213d
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/arch/mips/adm5120/clock.c
@@ -0,0 +1,76 @@
+/*
+ *  $Id$
+ *
+ *  ADM5120 minimal CLK API implementation
+ *
+ *  Copyright (C) 2007 OpenWrt.org
+ *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
+ *
+ *  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
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the
+ *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA  02110-1301, USA.
+ *
+ */
+
+#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);