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