1 files changed, 95 insertions, 0 deletions

diff --git a/arch/arm/mach-ux500/clock.c b/arch/arm/mach-ux500/clock.c
new file mode 100644
index 000000000000..20b6ebb6783a
--- /dev/null
+++ b/arch/arm/mach-ux500/clock.c
@@ -0,0 +1,95 @@
+/*
+ *  Copyright (C) 2009 ST-Ericsson
+ *      heavily based on realview platform
+ *
+ * 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/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+
+#include <asm/clkdev.h>
+
+/* currently the clk structure
+ * just supports rate. This would
+ * be extended as and when new devices are
+ * added - TODO
+ */
+struct clk {
+        unsigned long           rate;
+};
+
+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);
+
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+        /*TODO*/
+        return rate;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+        clk->rate = rate;
+        return 0;
+}
+EXPORT_SYMBOL(clk_set_rate);
+
+/* ssp clock */
+static struct clk ssp_clk = {
+        .rate = 48000000,
+};
+
+/* fixed clock */
+static struct clk f38_clk = {
+        .rate = 38400000,
+};
+
+static struct clk_lookup lookups[] = {
+        {
+                /* UART0 */
+                .dev_id         = "uart0",
+                .clk            = &f38_clk,
+        }, {    /* UART1 */
+                .dev_id         = "uart1",
+                .clk            = &f38_clk,
+        }, {    /* UART2 */
+                .dev_id         = "uart2",
+                .clk            = &f38_clk,
+        }, {    /* SSP */
+                .dev_id         = "pl022",
+                .clk            = &ssp_clk,
+        }
+};
+
+static int __init clk_init(void)
+{
+        int i;
+
+        /* register the clock lookups */
+        for (i = 0; i < ARRAY_SIZE(lookups); i++)
+                clkdev_add(&lookups[i]);
+        return 0;
+}
+arch_initcall(clk_init);