diff options
Diffstat (limited to 'arch/sh/include/asm/clock.h')
-rw-r--r-- | arch/sh/include/asm/clock.h | 161 |
1 files changed, 3 insertions, 158 deletions
diff --git a/arch/sh/include/asm/clock.h b/arch/sh/include/asm/clock.h index 11da4c5beb68..803d4c7f09dc 100644 --- a/arch/sh/include/asm/clock.h +++ b/arch/sh/include/asm/clock.h | |||
@@ -1,171 +1,16 @@ | |||
1 | #ifndef __ASM_SH_CLOCK_H | 1 | #ifndef __ASM_SH_CLOCK_H |
2 | #define __ASM_SH_CLOCK_H | 2 | #define __ASM_SH_CLOCK_H |
3 | 3 | ||
4 | #include <linux/list.h> | 4 | #include <linux/sh_clk.h> |
5 | #include <linux/seq_file.h> | ||
6 | #include <linux/cpufreq.h> | ||
7 | #include <linux/clk.h> | ||
8 | #include <linux/err.h> | ||
9 | |||
10 | struct clk; | ||
11 | |||
12 | struct clk_ops { | ||
13 | void (*init)(struct clk *clk); | ||
14 | int (*enable)(struct clk *clk); | ||
15 | void (*disable)(struct clk *clk); | ||
16 | unsigned long (*recalc)(struct clk *clk); | ||
17 | int (*set_rate)(struct clk *clk, unsigned long rate, int algo_id); | ||
18 | int (*set_parent)(struct clk *clk, struct clk *parent); | ||
19 | long (*round_rate)(struct clk *clk, unsigned long rate); | ||
20 | }; | ||
21 | |||
22 | struct clk { | ||
23 | struct list_head node; | ||
24 | const char *name; | ||
25 | int id; | ||
26 | struct module *owner; | ||
27 | |||
28 | struct clk *parent; | ||
29 | struct clk_ops *ops; | ||
30 | |||
31 | struct list_head children; | ||
32 | struct list_head sibling; /* node for children */ | ||
33 | |||
34 | int usecount; | ||
35 | |||
36 | unsigned long rate; | ||
37 | unsigned long flags; | ||
38 | |||
39 | void __iomem *enable_reg; | ||
40 | unsigned int enable_bit; | ||
41 | |||
42 | unsigned long arch_flags; | ||
43 | void *priv; | ||
44 | struct dentry *dentry; | ||
45 | struct cpufreq_frequency_table *freq_table; | ||
46 | }; | ||
47 | |||
48 | struct clk_lookup { | ||
49 | struct list_head node; | ||
50 | const char *dev_id; | ||
51 | const char *con_id; | ||
52 | struct clk *clk; | ||
53 | }; | ||
54 | |||
55 | #define CLK_ENABLE_ON_INIT (1 << 0) | ||
56 | 5 | ||
57 | /* Should be defined by processor-specific code */ | 6 | /* Should be defined by processor-specific code */ |
58 | void __deprecated arch_init_clk_ops(struct clk_ops **, int type); | 7 | void __deprecated arch_init_clk_ops(struct clk_ops **, int type); |
59 | int __init arch_clk_init(void); | 8 | int __init arch_clk_init(void); |
60 | 9 | ||
61 | /* arch/sh/kernel/cpu/clock.c */ | ||
62 | int clk_init(void); | ||
63 | unsigned long followparent_recalc(struct clk *); | ||
64 | void recalculate_root_clocks(void); | ||
65 | void propagate_rate(struct clk *); | ||
66 | int clk_reparent(struct clk *child, struct clk *parent); | ||
67 | int clk_register(struct clk *); | ||
68 | void clk_unregister(struct clk *); | ||
69 | |||
70 | /* arch/sh/kernel/cpu/clock-cpg.c */ | 10 | /* arch/sh/kernel/cpu/clock-cpg.c */ |
71 | int __init __deprecated cpg_clk_init(void); | 11 | int __init __deprecated cpg_clk_init(void); |
72 | 12 | ||
73 | /* the exported API, in addition to clk_set_rate */ | 13 | /* arch/sh/kernel/cpu/clock.c */ |
74 | /** | 14 | int clk_init(void); |
75 | * clk_set_rate_ex - set the clock rate for a clock source, with additional parameter | ||
76 | * @clk: clock source | ||
77 | * @rate: desired clock rate in Hz | ||
78 | * @algo_id: algorithm id to be passed down to ops->set_rate | ||
79 | * | ||
80 | * Returns success (0) or negative errno. | ||
81 | */ | ||
82 | int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id); | ||
83 | |||
84 | enum clk_sh_algo_id { | ||
85 | NO_CHANGE = 0, | ||
86 | |||
87 | IUS_N1_N1, | ||
88 | IUS_322, | ||
89 | IUS_522, | ||
90 | IUS_N11, | ||
91 | |||
92 | SB_N1, | ||
93 | |||
94 | SB3_N1, | ||
95 | SB3_32, | ||
96 | SB3_43, | ||
97 | SB3_54, | ||
98 | |||
99 | BP_N1, | ||
100 | |||
101 | IP_N1, | ||
102 | }; | ||
103 | |||
104 | struct clk_div_mult_table { | ||
105 | unsigned int *divisors; | ||
106 | unsigned int nr_divisors; | ||
107 | unsigned int *multipliers; | ||
108 | unsigned int nr_multipliers; | ||
109 | }; | ||
110 | |||
111 | struct cpufreq_frequency_table; | ||
112 | void clk_rate_table_build(struct clk *clk, | ||
113 | struct cpufreq_frequency_table *freq_table, | ||
114 | int nr_freqs, | ||
115 | struct clk_div_mult_table *src_table, | ||
116 | unsigned long *bitmap); | ||
117 | |||
118 | long clk_rate_table_round(struct clk *clk, | ||
119 | struct cpufreq_frequency_table *freq_table, | ||
120 | unsigned long rate); | ||
121 | |||
122 | int clk_rate_table_find(struct clk *clk, | ||
123 | struct cpufreq_frequency_table *freq_table, | ||
124 | unsigned long rate); | ||
125 | |||
126 | #define SH_CLK_MSTP32(_name, _id, _parent, _enable_reg, \ | ||
127 | _enable_bit, _flags) \ | ||
128 | { \ | ||
129 | .name = _name, \ | ||
130 | .id = _id, \ | ||
131 | .parent = _parent, \ | ||
132 | .enable_reg = (void __iomem *)_enable_reg, \ | ||
133 | .enable_bit = _enable_bit, \ | ||
134 | .flags = _flags, \ | ||
135 | } | ||
136 | |||
137 | int sh_clk_mstp32_register(struct clk *clks, int nr); | ||
138 | |||
139 | #define SH_CLK_DIV4(_name, _parent, _reg, _shift, _div_bitmap, _flags) \ | ||
140 | { \ | ||
141 | .name = _name, \ | ||
142 | .parent = _parent, \ | ||
143 | .enable_reg = (void __iomem *)_reg, \ | ||
144 | .enable_bit = _shift, \ | ||
145 | .arch_flags = _div_bitmap, \ | ||
146 | .flags = _flags, \ | ||
147 | } | ||
148 | |||
149 | struct clk_div4_table { | ||
150 | struct clk_div_mult_table *div_mult_table; | ||
151 | void (*kick)(struct clk *clk); | ||
152 | }; | ||
153 | |||
154 | int sh_clk_div4_register(struct clk *clks, int nr, | ||
155 | struct clk_div4_table *table); | ||
156 | int sh_clk_div4_enable_register(struct clk *clks, int nr, | ||
157 | struct clk_div4_table *table); | ||
158 | int sh_clk_div4_reparent_register(struct clk *clks, int nr, | ||
159 | struct clk_div4_table *table); | ||
160 | |||
161 | #define SH_CLK_DIV6(_name, _parent, _reg, _flags) \ | ||
162 | { \ | ||
163 | .name = _name, \ | ||
164 | .parent = _parent, \ | ||
165 | .enable_reg = (void __iomem *)_reg, \ | ||
166 | .flags = _flags, \ | ||
167 | } | ||
168 | |||
169 | int sh_clk_div6_register(struct clk *clks, int nr); | ||
170 | 15 | ||
171 | #endif /* __ASM_SH_CLOCK_H */ | 16 | #endif /* __ASM_SH_CLOCK_H */ |