2 * linux/include/asm-arm/arch-omap/clock.h
4 * Copyright (C) 2004 - 2005 Nokia corporation
5 * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
6 * Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #ifndef __ARCH_ARM_OMAP_CLOCK_H
14 #define __ARCH_ARM_OMAP_CLOCK_H
19 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
29 const struct clksel_rate
*rates
;
33 void __iomem
*mult_div1_reg
;
36 # if defined(CONFIG_ARCH_OMAP3)
37 void __iomem
*control_reg
;
48 struct list_head node
;
55 void __iomem
*enable_reg
;
58 void (*recalc
)(struct clk
*);
59 int (*set_rate
)(struct clk
*, unsigned long);
60 long (*round_rate
)(struct clk
*, unsigned long);
61 void (*init
)(struct clk
*);
62 int (*enable
)(struct clk
*);
63 void (*disable
)(struct clk
*);
64 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
66 void __iomem
*clksel_reg
;
68 const struct clksel
*clksel
;
69 const struct dpll_data
*dpll_data
;
76 struct clk_functions
{
77 int (*clk_enable
)(struct clk
*clk
);
78 void (*clk_disable
)(struct clk
*clk
);
79 long (*clk_round_rate
)(struct clk
*clk
, unsigned long rate
);
80 int (*clk_set_rate
)(struct clk
*clk
, unsigned long rate
);
81 int (*clk_set_parent
)(struct clk
*clk
, struct clk
*parent
);
82 struct clk
* (*clk_get_parent
)(struct clk
*clk
);
83 void (*clk_allow_idle
)(struct clk
*clk
);
84 void (*clk_deny_idle
)(struct clk
*clk
);
85 void (*clk_disable_unused
)(struct clk
*clk
);
88 extern unsigned int mpurate
;
90 extern int clk_init(struct clk_functions
* custom_clocks
);
91 extern int clk_register(struct clk
*clk
);
92 extern void clk_unregister(struct clk
*clk
);
93 extern void propagate_rate(struct clk
*clk
);
94 extern void recalculate_root_clocks(void);
95 extern void followparent_recalc(struct clk
* clk
);
96 extern void clk_allow_idle(struct clk
*clk
);
97 extern void clk_deny_idle(struct clk
*clk
);
98 extern int clk_get_usecount(struct clk
*clk
);
99 extern void clk_enable_init_clocks(void);
102 #define RATE_CKCTL (1 << 0) /* Main fixed ratio clocks */
103 #define RATE_FIXED (1 << 1) /* Fixed clock rate */
104 #define RATE_PROPAGATES (1 << 2) /* Program children too */
105 #define VIRTUAL_CLOCK (1 << 3) /* Composite clock from table */
106 #define ALWAYS_ENABLED (1 << 4) /* Clock cannot be disabled */
107 #define ENABLE_REG_32BIT (1 << 5) /* Use 32-bit access */
108 #define VIRTUAL_IO_ADDRESS (1 << 6) /* Clock in virtual address */
109 #define CLOCK_IDLE_CONTROL (1 << 7)
110 #define CLOCK_NO_IDLE_PARENT (1 << 8)
111 #define DELAYED_APP (1 << 9) /* Delay application of clock */
112 #define CONFIG_PARTICIPANT (1 << 10) /* Fundamental clock */
113 #define ENABLE_ON_INIT (1 << 11) /* Enable upon framework init */
114 #define INVERT_ENABLE (1 << 12) /* 0 enables, 1 disables */
115 /* bits 13-20 are currently free */
116 #define CLOCK_IN_OMAP310 (1 << 21)
117 #define CLOCK_IN_OMAP730 (1 << 22)
118 #define CLOCK_IN_OMAP1510 (1 << 23)
119 #define CLOCK_IN_OMAP16XX (1 << 24)
120 #define CLOCK_IN_OMAP242X (1 << 25)
121 #define CLOCK_IN_OMAP243X (1 << 26)
122 #define CLOCK_IN_OMAP343X (1 << 27) /* clocks common to all 343X */
123 #define PARENT_CONTROLS_CLOCK (1 << 28)
124 #define CLOCK_IN_OMAP3430ES1 (1 << 29) /* 3430ES1 clocks only */
125 #define CLOCK_IN_OMAP3430ES2 (1 << 30) /* 3430ES2 clocks only */
127 /* Clksel_rate flags */
128 #define DEFAULT_RATE (1 << 0)
129 #define RATE_IN_242X (1 << 1)
130 #define RATE_IN_243X (1 << 2)
131 #define RATE_IN_343X (1 << 3) /* rates common to all 343X */
132 #define RATE_IN_3430ES2 (1 << 4) /* 3430ES2 rates only */
134 #define RATE_IN_24XX (RATE_IN_242X | RATE_IN_243X)
137 /* CM_CLKSEL2_PLL.CORE_CLK_SRC options (24XX) */
138 #define CORE_CLK_SRC_32K 0
139 #define CORE_CLK_SRC_DPLL 1
140 #define CORE_CLK_SRC_DPLL_X2 2
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