Linux Audio

Check our new training course

Embedded Linux Audio

Check our new training course
with Creative Commons CC-BY-SA
lecture materials

Bootlin logo

Elixir Cross Referencer

Open Menu / drivers / clk / at91 / pmc.h
Loading...
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
/*
 * drivers/clk/at91/pmc.h
 *
 *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#ifndef __PMC_H_
#define __PMC_H_

#include <linux/io.h>
#include <linux/irqdomain.h>
#include <linux/regmap.h>
#include <linux/spinlock.h>

extern spinlock_t pmc_pcr_lock;

struct pmc_data {
	unsigned int ncore;
	struct clk_hw **chws;
	unsigned int nsystem;
	struct clk_hw **shws;
	unsigned int nperiph;
	struct clk_hw **phws;
	unsigned int ngck;
	struct clk_hw **ghws;
};

struct clk_range {
	unsigned long min;
	unsigned long max;
};

#define CLK_RANGE(MIN, MAX) {.min = MIN, .max = MAX,}

struct clk_master_layout {
	u32 mask;
	u8 pres_shift;
};

extern const struct clk_master_layout at91rm9200_master_layout;
extern const struct clk_master_layout at91sam9x5_master_layout;

struct clk_master_characteristics {
	struct clk_range output;
	u32 divisors[4];
	u8 have_div3_pres;
};

struct clk_pll_layout {
	u32 pllr_mask;
	u16 mul_mask;
	u8 mul_shift;
};

extern const struct clk_pll_layout at91rm9200_pll_layout;
extern const struct clk_pll_layout at91sam9g45_pll_layout;
extern const struct clk_pll_layout at91sam9g20_pllb_layout;
extern const struct clk_pll_layout sama5d3_pll_layout;

struct clk_pll_characteristics {
	struct clk_range input;
	int num_output;
	struct clk_range *output;
	u16 *icpll;
	u8 *out;
};

struct clk_programmable_layout {
	u8 pres_mask;
	u8 pres_shift;
	u8 css_mask;
	u8 have_slck_mck;
	u8 is_pres_direct;
};

extern const struct clk_programmable_layout at91rm9200_programmable_layout;
extern const struct clk_programmable_layout at91sam9g45_programmable_layout;
extern const struct clk_programmable_layout at91sam9x5_programmable_layout;

#define ndck(a, s) (a[s - 1].id + 1)
#define nck(a) (a[ARRAY_SIZE(a) - 1].id + 1)
struct pmc_data *pmc_data_allocate(unsigned int ncore, unsigned int nsystem,
				   unsigned int nperiph, unsigned int ngck);
void pmc_data_free(struct pmc_data *pmc_data);

int of_at91_get_clk_range(struct device_node *np, const char *propname,
			  struct clk_range *range);

struct clk_hw *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data);

struct clk_hw * __init
at91_clk_register_audio_pll_frac(struct regmap *regmap, const char *name,
				 const char *parent_name);

struct clk_hw * __init
at91_clk_register_audio_pll_pad(struct regmap *regmap, const char *name,
				const char *parent_name);

struct clk_hw * __init
at91_clk_register_audio_pll_pmc(struct regmap *regmap, const char *name,
				const char *parent_name);

struct clk_hw * __init
at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
			    const char *name, const char **parent_names,
			    u8 num_parents, u8 id, bool pll_audio,
			    const struct clk_range *range);

struct clk_hw * __init
at91_clk_register_h32mx(struct regmap *regmap, const char *name,
			const char *parent_name);

struct clk_hw * __init
at91_clk_i2s_mux_register(struct regmap *regmap, const char *name,
			  const char * const *parent_names,
			  unsigned int num_parents, u8 bus_id);

struct clk_hw * __init
at91_clk_register_main_rc_osc(struct regmap *regmap, const char *name,
			      u32 frequency, u32 accuracy);
struct clk_hw * __init
at91_clk_register_main_osc(struct regmap *regmap, const char *name,
			   const char *parent_name, bool bypass);
struct clk_hw * __init
at91_clk_register_rm9200_main(struct regmap *regmap,
			      const char *name,
			      const char *parent_name);
struct clk_hw * __init
at91_clk_register_sam9x5_main(struct regmap *regmap, const char *name,
			      const char **parent_names, int num_parents);

struct clk_hw * __init
at91_clk_register_master(struct regmap *regmap, const char *name,
			 int num_parents, const char **parent_names,
			 const struct clk_master_layout *layout,
			 const struct clk_master_characteristics *characteristics);

struct clk_hw * __init
at91_clk_register_peripheral(struct regmap *regmap, const char *name,
			     const char *parent_name, u32 id);
struct clk_hw * __init
at91_clk_register_sam9x5_peripheral(struct regmap *regmap, spinlock_t *lock,
				    const char *name, const char *parent_name,
				    u32 id, const struct clk_range *range);

struct clk_hw * __init
at91_clk_register_pll(struct regmap *regmap, const char *name,
		      const char *parent_name, u8 id,
		      const struct clk_pll_layout *layout,
		      const struct clk_pll_characteristics *characteristics);
struct clk_hw * __init
at91_clk_register_plldiv(struct regmap *regmap, const char *name,
			 const char *parent_name);

struct clk_hw * __init
at91_clk_register_programmable(struct regmap *regmap, const char *name,
			       const char **parent_names, u8 num_parents, u8 id,
			       const struct clk_programmable_layout *layout);

struct clk_hw * __init
at91_clk_register_sam9260_slow(struct regmap *regmap,
			       const char *name,
			       const char **parent_names,
			       int num_parents);

struct clk_hw * __init
at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name,
			    const char **parent_names, u8 num_parents);

struct clk_hw * __init
at91_clk_register_system(struct regmap *regmap, const char *name,
			 const char *parent_name, u8 id);

struct clk_hw * __init
at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,
			    const char **parent_names, u8 num_parents);
struct clk_hw * __init
at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name,
			     const char *parent_name);
struct clk_hw * __init
at91rm9200_clk_register_usb(struct regmap *regmap, const char *name,
			    const char *parent_name, const u32 *divisors);

struct clk_hw * __init
at91_clk_register_utmi(struct regmap *regmap_pmc, struct regmap *regmap_sfr,
		       const char *name, const char *parent_name);

#ifdef CONFIG_PM
void pmc_register_id(u8 id);
void pmc_register_pck(u8 pck);
#else
static inline void pmc_register_id(u8 id) {}
static inline void pmc_register_pck(u8 pck) {}
#endif

#endif /* __PMC_H_ */