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/*
* linux/include/asm-arm/arch-omap/clock.h
*
* Copyright (C) 2004 - 2005 Nokia corporation
* Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
* Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc
*
* 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.
*/
#ifndef __ARCH_ARM_OMAP_CLOCK_H
#define __ARCH_ARM_OMAP_CLOCK_H
struct module;
struct clk {
struct list_head node;
struct module *owner;
const char *name;
int id;
struct clk *parent;
unsigned long rate;
__u32 flags;
void __iomem *enable_reg;
__u8 enable_bit;
__u8 rate_offset;
__u8 src_offset;
__s8 usecount;
void (*recalc)(struct clk *);
int (*set_rate)(struct clk *, unsigned long);
long (*round_rate)(struct clk *, unsigned long);
void (*init)(struct clk *);
int (*enable)(struct clk *);
void (*disable)(struct clk *);
};
struct clk_functions {
int (*clk_enable)(struct clk *clk);
void (*clk_disable)(struct clk *clk);
long (*clk_round_rate)(struct clk *clk, unsigned long rate);
int (*clk_set_rate)(struct clk *clk, unsigned long rate);
int (*clk_set_parent)(struct clk *clk, struct clk *parent);
struct clk * (*clk_get_parent)(struct clk *clk);
void (*clk_allow_idle)(struct clk *clk);
void (*clk_deny_idle)(struct clk *clk);
void (*clk_disable_unused)(struct clk *clk);
};
extern unsigned int mpurate;
extern int clk_init(struct clk_functions * custom_clocks);
extern int clk_register(struct clk *clk);
extern void clk_unregister(struct clk *clk);
extern void propagate_rate(struct clk *clk);
extern void followparent_recalc(struct clk * clk);
extern void clk_allow_idle(struct clk *clk);
extern void clk_deny_idle(struct clk *clk);
extern int clk_get_usecount(struct clk *clk);
/* Clock flags */
#define RATE_CKCTL (1 << 0) /* Main fixed ratio clocks */
#define RATE_FIXED (1 << 1) /* Fixed clock rate */
#define RATE_PROPAGATES (1 << 2) /* Program children too */
#define VIRTUAL_CLOCK (1 << 3) /* Composite clock from table */
#define ALWAYS_ENABLED (1 << 4) /* Clock cannot be disabled */
#define ENABLE_REG_32BIT (1 << 5) /* Use 32-bit access */
#define VIRTUAL_IO_ADDRESS (1 << 6) /* Clock in virtual address */
#define CLOCK_IDLE_CONTROL (1 << 7)
#define CLOCK_NO_IDLE_PARENT (1 << 8)
#define DELAYED_APP (1 << 9) /* Delay application of clock */
#define CONFIG_PARTICIPANT (1 << 10) /* Fundamental clock */
#define CM_MPU_SEL1 (1 << 11) /* Domain divider/source */
#define CM_DSP_SEL1 (1 << 12)
#define CM_GFX_SEL1 (1 << 13)
#define CM_MODEM_SEL1 (1 << 14)
#define CM_CORE_SEL1 (1 << 15) /* Sets divider for many */
#define CM_CORE_SEL2 (1 << 16) /* sets parent for GPT */
#define CM_WKUP_SEL1 (1 << 17)
#define CM_PLL_SEL1 (1 << 18)
#define CM_PLL_SEL2 (1 << 19)
#define CM_SYSCLKOUT_SEL1 (1 << 20)
#define CLOCK_IN_OMAP310 (1 << 21)
#define CLOCK_IN_OMAP730 (1 << 22)
#define CLOCK_IN_OMAP1510 (1 << 23)
#define CLOCK_IN_OMAP16XX (1 << 24)
#define CLOCK_IN_OMAP242X (1 << 25)
#define CLOCK_IN_OMAP243X (1 << 26)
/* CM_CLKSEL2_PLL.CORE_CLK_SRC options (24XX) */
#define CORE_CLK_SRC_32K 0
#define CORE_CLK_SRC_DPLL 1
#define CORE_CLK_SRC_DPLL_X2 2
#endif
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