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Diffstat (limited to 'drivers/clk/at91/sckc.c')
-rw-r--r--drivers/clk/at91/sckc.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c
new file mode 100644
index 000000000..1184d76a7
--- /dev/null
+++ b/drivers/clk/at91/sckc.c
@@ -0,0 +1,57 @@
+/*
+ * drivers/clk/at91/sckc.c
+ *
+ * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.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/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/io.h>
+
+#include "sckc.h"
+
+static const struct of_device_id sckc_clk_ids[] __initconst = {
+ /* Slow clock */
+ {
+ .compatible = "atmel,at91sam9x5-clk-slow-osc",
+ .data = of_at91sam9x5_clk_slow_osc_setup,
+ },
+ {
+ .compatible = "atmel,at91sam9x5-clk-slow-rc-osc",
+ .data = of_at91sam9x5_clk_slow_rc_osc_setup,
+ },
+ {
+ .compatible = "atmel,at91sam9x5-clk-slow",
+ .data = of_at91sam9x5_clk_slow_setup,
+ },
+ { /*sentinel*/ }
+};
+
+static void __init of_at91sam9x5_sckc_setup(struct device_node *np)
+{
+ struct device_node *childnp;
+ void (*clk_setup)(struct device_node *, void __iomem *);
+ const struct of_device_id *clk_id;
+ void __iomem *regbase = of_iomap(np, 0);
+
+ if (!regbase)
+ return;
+
+ for_each_child_of_node(np, childnp) {
+ clk_id = of_match_node(sckc_clk_ids, childnp);
+ if (!clk_id)
+ continue;
+ clk_setup = clk_id->data;
+ clk_setup(childnp, regbase);
+ }
+}
+CLK_OF_DECLARE(at91sam9x5_clk_sckc, "atmel,at91sam9x5-sckc",
+ of_at91sam9x5_sckc_setup);