1/*
2 * drivers/clk/at91/pmc.h
3 *
4 *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#ifndef __PMC_H_
13#define __PMC_H_
14
15#include <linux/io.h>
16#include <linux/irqdomain.h>
17#include <linux/spinlock.h>
18
19struct clk_range {
20	unsigned long min;
21	unsigned long max;
22};
23
24#define CLK_RANGE(MIN, MAX) {.min = MIN, .max = MAX,}
25
26struct at91_pmc_caps {
27	u32 available_irqs;
28};
29
30struct at91_pmc {
31	void __iomem *regbase;
32	int virq;
33	spinlock_t lock;
34	const struct at91_pmc_caps *caps;
35	struct irq_domain *irqdomain;
36	u32 imr;
37};
38
39static inline void pmc_lock(struct at91_pmc *pmc)
40{
41	spin_lock(&pmc->lock);
42}
43
44static inline void pmc_unlock(struct at91_pmc *pmc)
45{
46	spin_unlock(&pmc->lock);
47}
48
49static inline u32 pmc_read(struct at91_pmc *pmc, int offset)
50{
51	return readl(pmc->regbase + offset);
52}
53
54static inline void pmc_write(struct at91_pmc *pmc, int offset, u32 value)
55{
56	writel(value, pmc->regbase + offset);
57}
58
59int of_at91_get_clk_range(struct device_node *np, const char *propname,
60			  struct clk_range *range);
61
62extern void __init of_at91sam9260_clk_slow_setup(struct device_node *np,
63						 struct at91_pmc *pmc);
64
65extern void __init of_at91rm9200_clk_main_osc_setup(struct device_node *np,
66						    struct at91_pmc *pmc);
67extern void __init of_at91sam9x5_clk_main_rc_osc_setup(struct device_node *np,
68						       struct at91_pmc *pmc);
69extern void __init of_at91rm9200_clk_main_setup(struct device_node *np,
70						struct at91_pmc *pmc);
71extern void __init of_at91sam9x5_clk_main_setup(struct device_node *np,
72						struct at91_pmc *pmc);
73
74extern void __init of_at91rm9200_clk_pll_setup(struct device_node *np,
75					       struct at91_pmc *pmc);
76extern void __init of_at91sam9g45_clk_pll_setup(struct device_node *np,
77						struct at91_pmc *pmc);
78extern void __init of_at91sam9g20_clk_pllb_setup(struct device_node *np,
79						 struct at91_pmc *pmc);
80extern void __init of_sama5d3_clk_pll_setup(struct device_node *np,
81					    struct at91_pmc *pmc);
82extern void __init of_at91sam9x5_clk_plldiv_setup(struct device_node *np,
83						  struct at91_pmc *pmc);
84
85extern void __init of_at91rm9200_clk_master_setup(struct device_node *np,
86						  struct at91_pmc *pmc);
87extern void __init of_at91sam9x5_clk_master_setup(struct device_node *np,
88						  struct at91_pmc *pmc);
89
90extern void __init of_at91rm9200_clk_sys_setup(struct device_node *np,
91					       struct at91_pmc *pmc);
92
93extern void __init of_at91rm9200_clk_periph_setup(struct device_node *np,
94						  struct at91_pmc *pmc);
95extern void __init of_at91sam9x5_clk_periph_setup(struct device_node *np,
96						  struct at91_pmc *pmc);
97
98extern void __init of_at91rm9200_clk_prog_setup(struct device_node *np,
99						struct at91_pmc *pmc);
100extern void __init of_at91sam9g45_clk_prog_setup(struct device_node *np,
101						 struct at91_pmc *pmc);
102extern void __init of_at91sam9x5_clk_prog_setup(struct device_node *np,
103						struct at91_pmc *pmc);
104
105#if defined(CONFIG_HAVE_AT91_UTMI)
106extern void __init of_at91sam9x5_clk_utmi_setup(struct device_node *np,
107						struct at91_pmc *pmc);
108#endif
109
110#if defined(CONFIG_HAVE_AT91_USB_CLK)
111extern void __init of_at91rm9200_clk_usb_setup(struct device_node *np,
112					       struct at91_pmc *pmc);
113extern void __init of_at91sam9x5_clk_usb_setup(struct device_node *np,
114					       struct at91_pmc *pmc);
115extern void __init of_at91sam9n12_clk_usb_setup(struct device_node *np,
116						struct at91_pmc *pmc);
117#endif
118
119#if defined(CONFIG_HAVE_AT91_SMD)
120extern void __init of_at91sam9x5_clk_smd_setup(struct device_node *np,
121					       struct at91_pmc *pmc);
122#endif
123
124#if defined(CONFIG_HAVE_AT91_H32MX)
125extern void __init of_sama5d4_clk_h32mx_setup(struct device_node *np,
126					      struct at91_pmc *pmc);
127#endif
128
129#endif /* __PMC_H_ */
130