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Diffstat (limited to 'arch/arm/plat-stmp3xxx/clock.h')
-rw-r--r--arch/arm/plat-stmp3xxx/clock.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/arm/plat-stmp3xxx/clock.h b/arch/arm/plat-stmp3xxx/clock.h
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+++ b/arch/arm/plat-stmp3xxx/clock.h
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+/*
+ * Clock control driver for Freescale STMP37XX/STMP378X - internal header file
+ *
+ * Author: Vitaly Wool <vital@embeddedalley.com>
+ *
+ * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+#ifndef __ARCH_ARM_STMX3XXX_CLOCK_H__
+#define __ARCH_ARM_STMX3XXX_CLOCK_H__
+
+#ifndef __ASSEMBLER__
+
+struct clk_ops {
+ int (*enable) (struct clk *);
+ int (*disable) (struct clk *);
+ long (*get_rate) (struct clk *);
+ long (*round_rate) (struct clk *, u32);
+ int (*set_rate) (struct clk *, u32);
+ int (*set_parent) (struct clk *, struct clk *);
+};
+
+struct clk {
+ struct clk *parent;
+ u32 rate;
+ u32 flags;
+ u8 scale_shift;
+ u8 enable_shift;
+ u8 bypass_shift;
+ u8 busy_bit;
+ s8 usage;
+ int enable_wait;
+ int enable_negate;
+ u32 saved_div;
+ void __iomem *enable_reg;
+ void __iomem *scale_reg;
+ void __iomem *bypass_reg;
+ void __iomem *busy_reg;
+ struct clk_ops *ops;
+};
+
+#endif /* __ASSEMBLER__ */
+
+/* Flags */
+#define RATE_PROPAGATES (1<<0)
+#define NEEDS_INITIALIZATION (1<<1)
+#define PARENT_SET_RATE (1<<2)
+#define FIXED_RATE (1<<3)
+#define ENABLED (1<<4)
+#define NEEDS_SET_PARENT (1<<5)
+
+#endif