Initial import

1 files changed, 68 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/clkt_iclk.c b/arch/arm/mach-omap2/clkt_iclk.c
new file mode 100644
index 000000000..55eb579ae
--- /dev/null
+++ b/arch/arm/mach-omap2/clkt_iclk.c
@@ -0,0 +1,68 @@
+/*
+ * OMAP2/3 interface clock control
+ *
+ * Copyright (C) 2011 Nokia Corporation
+ * Paul Walmsley
+ *
+ * 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.
+ */
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+
+#include "clock.h"
+
+/* Register offsets */
+#define CM_AUTOIDLE			0x30
+#define CM_ICLKEN			0x10
+
+/* Private functions */
+
+/* XXX */
+void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk)
+{
+	u32 v;
+	void __iomem *r;
+
+	r = (__force void __iomem *)
+		((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
+
+	v = omap2_clk_readl(clk, r);
+	v |= (1 << clk->enable_bit);
+	omap2_clk_writel(v, clk, r);
+}
+
+/* XXX */
+void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk)
+{
+	u32 v;
+	void __iomem *r;
+
+	r = (__force void __iomem *)
+		((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN));
+
+	v = omap2_clk_readl(clk, r);
+	v &= ~(1 << clk->enable_bit);
+	omap2_clk_writel(v, clk, r);
+}
+
+/* Public data */
+
+const struct clk_hw_omap_ops clkhwops_iclk = {
+	.allow_idle	= omap2_clkt_iclk_allow_idle,
+	.deny_idle	= omap2_clkt_iclk_deny_idle,
+};
+
+const struct clk_hw_omap_ops clkhwops_iclk_wait = {
+	.allow_idle	= omap2_clkt_iclk_allow_idle,
+	.deny_idle	= omap2_clkt_iclk_deny_idle,
+	.find_idlest	= omap2_clk_dflt_find_idlest,
+	.find_companion	= omap2_clk_dflt_find_companion,
+};
+
+
+