at91: implement clock framework

this implementation is based on linux one (v2.6.35-rc5-76-gd0c6f62)
it will calculate all the clock dynamically instead of statictly
this will use also the new clock framework

it will also print the clock status after the console init

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 31 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/clock.h b/arch/arm/mach-at91/clock.h
new file mode 100644
index 0000000000..c8ecd0cf55
--- /dev/null
+++ b/arch/arm/mach-at91/clock.h
@@ -0,0 +1,31 @@
+/*
+ * linux/arch/arm/mach-at91/clock.h
+ *
+ * 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.
+ */
+
+#define CLK_TYPE_PRIMARY	0x1
+#define CLK_TYPE_PLL		0x2
+#define CLK_TYPE_PROGRAMMABLE	0x4
+#define CLK_TYPE_PERIPHERAL	0x8
+#define CLK_TYPE_SYSTEM		0x10
+
+
+struct clk {
+	struct list_head node;
+	const char	*name;		/* unique clock name */
+	const char	*function;	/* function of the clock */
+	struct device_d	*dev;		/* device associated with function */
+	unsigned long	rate_hz;
+	struct clk	*parent;
+	u32		pmc_mask;
+	void		(*mode)(struct clk *, int);
+	unsigned	id:3;		/* PCK0..4, or 32k/main/a/b */
+	unsigned	type;		/* clock type */
+	u16		users;
+};
+
+
+extern int __init clk_register(struct clk *clk);