diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-08 14:38:42 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-08 14:38:42 -0400 |
commit | 49b75b87ce2dfbd99e59a50c3681b154d07e3a22 (patch) | |
tree | f14e1da19a13d87a512f9043c2f37fd75dd122b3 /arch/arm/plat-omap/include/mach/clock.h | |
parent | f1c7f79b6ab4f7ada002a0fae47f462ede6b6857 (diff) | |
parent | 097d9eb537ff4d88b74c3fe67392e27c478ca3c5 (diff) |
Merge branch 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5177/1: arm/mach-sa1100/Makefile: remove CONFIG_SA1100_USB
[ARM] 5166/1: magician: add MAINTAINERS entry
[ARM] fix pnx4008 build errors
[ARM] Fix SMP booting with non-zero PHYS_OFFSET
[ARM] 5185/1: Fix spi num_chipselect for lubbock
[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
[ARM] Add support for arch/arm/mach-*/include and arch/arm/plat-*/include
[ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead
[ARM] Eliminate useless includes of asm/mach-types.h
[ARM] Fix circular include dependency with IRQ headers
avr32: Use <mach/foo.h> instead of <asm/arch/foo.h>
avr32: Introduce arch/avr32/mach-*/include/mach
avr32: Move include/asm-avr32 to arch/avr32/include/asm
[ARM] sa1100_wdt: use reset_status to remember watchdog reset status
[ARM] pxa: introduce reset_status and clear_reset_status for driver's usage
[ARM] pxa: introduce reset.h for reset specific header information
Diffstat (limited to 'arch/arm/plat-omap/include/mach/clock.h')
-rw-r--r-- | arch/arm/plat-omap/include/mach/clock.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/mach/clock.h b/arch/arm/plat-omap/include/mach/clock.h new file mode 100644 index 000000000000..92f7c7238fcd --- /dev/null +++ b/arch/arm/plat-omap/include/mach/clock.h | |||
@@ -0,0 +1,162 @@ | |||
1 | /* | ||
2 | * arch/arm/plat-omap/include/mach/clock.h | ||
3 | * | ||
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 | ||
7 | * | ||
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. | ||
11 | */ | ||
12 | |||
13 | #ifndef __ARCH_ARM_OMAP_CLOCK_H | ||
14 | #define __ARCH_ARM_OMAP_CLOCK_H | ||
15 | |||
16 | struct module; | ||
17 | struct clk; | ||
18 | |||
19 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) | ||
20 | |||
21 | struct clksel_rate { | ||
22 | u8 div; | ||
23 | u32 val; | ||
24 | u8 flags; | ||
25 | }; | ||
26 | |||
27 | struct clksel { | ||
28 | struct clk *parent; | ||
29 | const struct clksel_rate *rates; | ||
30 | }; | ||
31 | |||
32 | struct dpll_data { | ||
33 | void __iomem *mult_div1_reg; | ||
34 | u32 mult_mask; | ||
35 | u32 div1_mask; | ||
36 | u16 last_rounded_m; | ||
37 | u8 last_rounded_n; | ||
38 | unsigned long last_rounded_rate; | ||
39 | unsigned int rate_tolerance; | ||
40 | u16 max_multiplier; | ||
41 | u8 max_divider; | ||
42 | u32 max_tolerance; | ||
43 | # if defined(CONFIG_ARCH_OMAP3) | ||
44 | u8 modes; | ||
45 | void __iomem *control_reg; | ||
46 | u32 enable_mask; | ||
47 | u8 auto_recal_bit; | ||
48 | u8 recal_en_bit; | ||
49 | u8 recal_st_bit; | ||
50 | void __iomem *autoidle_reg; | ||
51 | u32 autoidle_mask; | ||
52 | void __iomem *idlest_reg; | ||
53 | u8 idlest_bit; | ||
54 | # endif | ||
55 | }; | ||
56 | |||
57 | #endif | ||
58 | |||
59 | struct clk { | ||
60 | struct list_head node; | ||
61 | struct module *owner; | ||
62 | const char *name; | ||
63 | int id; | ||
64 | struct clk *parent; | ||
65 | unsigned long rate; | ||
66 | __u32 flags; | ||
67 | void __iomem *enable_reg; | ||
68 | __u8 enable_bit; | ||
69 | __s8 usecount; | ||
70 | void (*recalc)(struct clk *); | ||
71 | int (*set_rate)(struct clk *, unsigned long); | ||
72 | long (*round_rate)(struct clk *, unsigned long); | ||
73 | void (*init)(struct clk *); | ||
74 | int (*enable)(struct clk *); | ||
75 | void (*disable)(struct clk *); | ||
76 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) | ||
77 | u8 fixed_div; | ||
78 | void __iomem *clksel_reg; | ||
79 | u32 clksel_mask; | ||
80 | const struct clksel *clksel; | ||
81 | struct dpll_data *dpll_data; | ||
82 | #else | ||
83 | __u8 rate_offset; | ||
84 | __u8 src_offset; | ||
85 | #endif | ||
86 | #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) | ||
87 | struct dentry *dent; /* For visible tree hierarchy */ | ||
88 | #endif | ||
89 | }; | ||
90 | |||
91 | struct cpufreq_frequency_table; | ||
92 | |||
93 | struct clk_functions { | ||
94 | int (*clk_enable)(struct clk *clk); | ||
95 | void (*clk_disable)(struct clk *clk); | ||
96 | long (*clk_round_rate)(struct clk *clk, unsigned long rate); | ||
97 | int (*clk_set_rate)(struct clk *clk, unsigned long rate); | ||
98 | int (*clk_set_parent)(struct clk *clk, struct clk *parent); | ||
99 | struct clk * (*clk_get_parent)(struct clk *clk); | ||
100 | void (*clk_allow_idle)(struct clk *clk); | ||
101 | void (*clk_deny_idle)(struct clk *clk); | ||
102 | void (*clk_disable_unused)(struct clk *clk); | ||
103 | #ifdef CONFIG_CPU_FREQ | ||
104 | void (*clk_init_cpufreq_table)(struct cpufreq_frequency_table **); | ||
105 | #endif | ||
106 | }; | ||
107 | |||
108 | extern unsigned int mpurate; | ||
109 | |||
110 | extern int clk_init(struct clk_functions * custom_clocks); | ||
111 | extern int clk_register(struct clk *clk); | ||
112 | extern void clk_unregister(struct clk *clk); | ||
113 | extern void propagate_rate(struct clk *clk); | ||
114 | extern void recalculate_root_clocks(void); | ||
115 | extern void followparent_recalc(struct clk * clk); | ||
116 | extern void clk_allow_idle(struct clk *clk); | ||
117 | extern void clk_deny_idle(struct clk *clk); | ||
118 | extern int clk_get_usecount(struct clk *clk); | ||
119 | extern void clk_enable_init_clocks(void); | ||
120 | |||
121 | /* Clock flags */ | ||
122 | #define RATE_CKCTL (1 << 0) /* Main fixed ratio clocks */ | ||
123 | #define RATE_FIXED (1 << 1) /* Fixed clock rate */ | ||
124 | #define RATE_PROPAGATES (1 << 2) /* Program children too */ | ||
125 | #define VIRTUAL_CLOCK (1 << 3) /* Composite clock from table */ | ||
126 | #define ALWAYS_ENABLED (1 << 4) /* Clock cannot be disabled */ | ||
127 | #define ENABLE_REG_32BIT (1 << 5) /* Use 32-bit access */ | ||
128 | #define VIRTUAL_IO_ADDRESS (1 << 6) /* Clock in virtual address */ | ||
129 | #define CLOCK_IDLE_CONTROL (1 << 7) | ||
130 | #define CLOCK_NO_IDLE_PARENT (1 << 8) | ||
131 | #define DELAYED_APP (1 << 9) /* Delay application of clock */ | ||
132 | #define CONFIG_PARTICIPANT (1 << 10) /* Fundamental clock */ | ||
133 | #define ENABLE_ON_INIT (1 << 11) /* Enable upon framework init */ | ||
134 | #define INVERT_ENABLE (1 << 12) /* 0 enables, 1 disables */ | ||
135 | /* bits 13-20 are currently free */ | ||
136 | #define CLOCK_IN_OMAP310 (1 << 21) | ||
137 | #define CLOCK_IN_OMAP730 (1 << 22) | ||
138 | #define CLOCK_IN_OMAP1510 (1 << 23) | ||
139 | #define CLOCK_IN_OMAP16XX (1 << 24) | ||
140 | #define CLOCK_IN_OMAP242X (1 << 25) | ||
141 | #define CLOCK_IN_OMAP243X (1 << 26) | ||
142 | #define CLOCK_IN_OMAP343X (1 << 27) /* clocks common to all 343X */ | ||
143 | #define PARENT_CONTROLS_CLOCK (1 << 28) | ||
144 | #define CLOCK_IN_OMAP3430ES1 (1 << 29) /* 3430ES1 clocks only */ | ||
145 | #define CLOCK_IN_OMAP3430ES2 (1 << 30) /* 3430ES2 clocks only */ | ||
146 | |||
147 | /* Clksel_rate flags */ | ||
148 | #define DEFAULT_RATE (1 << 0) | ||
149 | #define RATE_IN_242X (1 << 1) | ||
150 | #define RATE_IN_243X (1 << 2) | ||
151 | #define RATE_IN_343X (1 << 3) /* rates common to all 343X */ | ||
152 | #define RATE_IN_3430ES2 (1 << 4) /* 3430ES2 rates only */ | ||
153 | |||
154 | #define RATE_IN_24XX (RATE_IN_242X | RATE_IN_243X) | ||
155 | |||
156 | |||
157 | /* CM_CLKSEL2_PLL.CORE_CLK_SRC options (24XX) */ | ||
158 | #define CORE_CLK_SRC_32K 0 | ||
159 | #define CORE_CLK_SRC_DPLL 1 | ||
160 | #define CORE_CLK_SRC_DPLL_X2 2 | ||
161 | |||
162 | #endif | ||