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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * drivers/clk/at91/pmc.h
4 *
5 * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
6 */
7
8#ifndef __PMC_H_
9#define __PMC_H_
10
11#include <linux/io.h>
12#include <linux/irqdomain.h>
13#include <linux/regmap.h>
14#include <linux/spinlock.h>
15
16extern spinlock_t pmc_pcr_lock;
17
18struct pmc_data {
19 unsigned int ncore;
20 struct clk_hw **chws;
21 unsigned int nsystem;
22 struct clk_hw **shws;
23 unsigned int nperiph;
24 struct clk_hw **phws;
25 unsigned int ngck;
26 struct clk_hw **ghws;
27 unsigned int npck;
28 struct clk_hw **pchws;
29
30 struct clk_hw *hwtable[];
31};
32
33struct clk_range {
34 unsigned long min;
35 unsigned long max;
36};
37
38#define CLK_RANGE(MIN, MAX) {.min = MIN, .max = MAX,}
39
40struct clk_master_layout {
41 u32 offset;
42 u32 mask;
43 u8 pres_shift;
44};
45
46extern const struct clk_master_layout at91rm9200_master_layout;
47extern const struct clk_master_layout at91sam9x5_master_layout;
48
49struct clk_master_characteristics {
50 struct clk_range output;
51 u32 divisors[4];
52 u8 have_div3_pres;
53};
54
55struct clk_pll_layout {
56 u32 pllr_mask;
57 u32 mul_mask;
58 u32 frac_mask;
59 u32 div_mask;
60 u32 endiv_mask;
61 u8 mul_shift;
62 u8 frac_shift;
63 u8 div_shift;
64 u8 endiv_shift;
65};
66
67extern const struct clk_pll_layout at91rm9200_pll_layout;
68extern const struct clk_pll_layout at91sam9g45_pll_layout;
69extern const struct clk_pll_layout at91sam9g20_pllb_layout;
70extern const struct clk_pll_layout sama5d3_pll_layout;
71
72struct clk_pll_characteristics {
73 struct clk_range input;
74 int num_output;
75 const struct clk_range *output;
76 u16 *icpll;
77 u8 *out;
78 u8 upll : 1;
79};
80
81struct clk_programmable_layout {
82 u8 pres_mask;
83 u8 pres_shift;
84 u8 css_mask;
85 u8 have_slck_mck;
86 u8 is_pres_direct;
87};
88
89extern const struct clk_programmable_layout at91rm9200_programmable_layout;
90extern const struct clk_programmable_layout at91sam9g45_programmable_layout;
91extern const struct clk_programmable_layout at91sam9x5_programmable_layout;
92
93struct clk_pcr_layout {
94 u32 offset;
95 u32 cmd;
96 u32 div_mask;
97 u32 gckcss_mask;
98 u32 pid_mask;
99};
100
101#define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1))
102#define field_prep(_mask, _val) (((_val) << (ffs(_mask) - 1)) & (_mask))
103
104#define ndck(a, s) (a[s - 1].id + 1)
105#define nck(a) (a[ARRAY_SIZE(a) - 1].id + 1)
106struct pmc_data *pmc_data_allocate(unsigned int ncore, unsigned int nsystem,
107 unsigned int nperiph, unsigned int ngck,
108 unsigned int npck);
109
110int of_at91_get_clk_range(struct device_node *np, const char *propname,
111 struct clk_range *range);
112
113struct clk_hw *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data);
114
115struct clk_hw * __init
116at91_clk_register_audio_pll_frac(struct regmap *regmap, const char *name,
117 const char *parent_name);
118
119struct clk_hw * __init
120at91_clk_register_audio_pll_pad(struct regmap *regmap, const char *name,
121 const char *parent_name);
122
123struct clk_hw * __init
124at91_clk_register_audio_pll_pmc(struct regmap *regmap, const char *name,
125 const char *parent_name);
126
127struct clk_hw * __init
128at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock,
129 const struct clk_pcr_layout *layout,
130 const char *name, const char **parent_names,
131 u32 *mux_table, u8 num_parents, u8 id,
132 const struct clk_range *range, int chg_pid);
133
134struct clk_hw * __init
135at91_clk_register_h32mx(struct regmap *regmap, const char *name,
136 const char *parent_name);
137
138struct clk_hw * __init
139at91_clk_i2s_mux_register(struct regmap *regmap, const char *name,
140 const char * const *parent_names,
141 unsigned int num_parents, u8 bus_id);
142
143struct clk_hw * __init
144at91_clk_register_main_rc_osc(struct regmap *regmap, const char *name,
145 u32 frequency, u32 accuracy);
146struct clk_hw * __init
147at91_clk_register_main_osc(struct regmap *regmap, const char *name,
148 const char *parent_name, bool bypass);
149struct clk_hw * __init
150at91_clk_register_rm9200_main(struct regmap *regmap,
151 const char *name,
152 const char *parent_name);
153struct clk_hw * __init
154at91_clk_register_sam9x5_main(struct regmap *regmap, const char *name,
155 const char **parent_names, int num_parents);
156
157struct clk_hw * __init
158at91_clk_register_master(struct regmap *regmap, const char *name,
159 int num_parents, const char **parent_names,
160 const struct clk_master_layout *layout,
161 const struct clk_master_characteristics *characteristics);
162
163struct clk_hw * __init
164at91_clk_sama7g5_register_master(struct regmap *regmap,
165 const char *name, int num_parents,
166 const char **parent_names, u32 *mux_table,
167 spinlock_t *lock, u8 id, bool critical,
168 int chg_pid);
169
170struct clk_hw * __init
171at91_clk_register_peripheral(struct regmap *regmap, const char *name,
172 const char *parent_name, u32 id);
173struct clk_hw * __init
174at91_clk_register_sam9x5_peripheral(struct regmap *regmap, spinlock_t *lock,
175 const struct clk_pcr_layout *layout,
176 const char *name, const char *parent_name,
177 u32 id, const struct clk_range *range,
178 int chg_pid);
179
180struct clk_hw * __init
181at91_clk_register_pll(struct regmap *regmap, const char *name,
182 const char *parent_name, u8 id,
183 const struct clk_pll_layout *layout,
184 const struct clk_pll_characteristics *characteristics);
185struct clk_hw * __init
186at91_clk_register_plldiv(struct regmap *regmap, const char *name,
187 const char *parent_name);
188
189struct clk_hw * __init
190sam9x60_clk_register_div_pll(struct regmap *regmap, spinlock_t *lock,
191 const char *name, const char *parent_name, u8 id,
192 const struct clk_pll_characteristics *characteristics,
193 const struct clk_pll_layout *layout, bool critical);
194
195struct clk_hw * __init
196sam9x60_clk_register_frac_pll(struct regmap *regmap, spinlock_t *lock,
197 const char *name, const char *parent_name,
198 struct clk_hw *parent_hw, u8 id,
199 const struct clk_pll_characteristics *characteristics,
200 const struct clk_pll_layout *layout, bool critical);
201
202struct clk_hw * __init
203at91_clk_register_programmable(struct regmap *regmap, const char *name,
204 const char **parent_names, u8 num_parents, u8 id,
205 const struct clk_programmable_layout *layout,
206 u32 *mux_table);
207
208struct clk_hw * __init
209at91_clk_register_sam9260_slow(struct regmap *regmap,
210 const char *name,
211 const char **parent_names,
212 int num_parents);
213
214struct clk_hw * __init
215at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name,
216 const char **parent_names, u8 num_parents);
217
218struct clk_hw * __init
219at91_clk_register_system(struct regmap *regmap, const char *name,
220 const char *parent_name, u8 id);
221
222struct clk_hw * __init
223at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name,
224 const char **parent_names, u8 num_parents);
225struct clk_hw * __init
226at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name,
227 const char *parent_name);
228struct clk_hw * __init
229sam9x60_clk_register_usb(struct regmap *regmap, const char *name,
230 const char **parent_names, u8 num_parents);
231struct clk_hw * __init
232at91rm9200_clk_register_usb(struct regmap *regmap, const char *name,
233 const char *parent_name, const u32 *divisors);
234
235struct clk_hw * __init
236at91_clk_register_utmi(struct regmap *regmap_pmc, struct regmap *regmap_sfr,
237 const char *name, const char *parent_name);
238
239struct clk_hw * __init
240at91_clk_sama7g5_register_utmi(struct regmap *regmap, const char *name,
241 const char *parent_name);
242
243#ifdef CONFIG_PM
244void pmc_register_id(u8 id);
245void pmc_register_pck(u8 pck);
246#else
247static inline void pmc_register_id(u8 id) {}
248static inline void pmc_register_pck(u8 pck) {}
249#endif
250
251#endif /* __PMC_H_ */