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clock.h

/*
 * 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

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