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0ad6125b BB |
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 | ||
19 | struct clk_range { | |
20 | unsigned long min; | |
21 | unsigned long max; | |
22 | }; | |
23 | ||
24 | #define CLK_RANGE(MIN, MAX) {.min = MIN, .max = MAX,} | |
25 | ||
26 | struct at91_pmc_caps { | |
27 | u32 available_irqs; | |
28 | }; | |
29 | ||
30 | struct 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 | }; | |
37 | ||
38 | static inline void pmc_lock(struct at91_pmc *pmc) | |
39 | { | |
40 | spin_lock(&pmc->lock); | |
41 | } | |
42 | ||
43 | static inline void pmc_unlock(struct at91_pmc *pmc) | |
44 | { | |
45 | spin_unlock(&pmc->lock); | |
46 | } | |
47 | ||
48 | static inline u32 pmc_read(struct at91_pmc *pmc, int offset) | |
49 | { | |
50 | return readl(pmc->regbase + offset); | |
51 | } | |
52 | ||
53 | static inline void pmc_write(struct at91_pmc *pmc, int offset, u32 value) | |
54 | { | |
55 | writel(value, pmc->regbase + offset); | |
56 | } | |
57 | ||
58 | int of_at91_get_clk_range(struct device_node *np, const char *propname, | |
59 | struct clk_range *range); | |
60 | ||
38d34c31 BB |
61 | extern void __init of_at91rm9200_clk_main_setup(struct device_node *np, |
62 | struct at91_pmc *pmc); | |
63 | ||
1a748d2b BB |
64 | extern void __init of_at91rm9200_clk_pll_setup(struct device_node *np, |
65 | struct at91_pmc *pmc); | |
66 | extern void __init of_at91sam9g45_clk_pll_setup(struct device_node *np, | |
67 | struct at91_pmc *pmc); | |
68 | extern void __init of_at91sam9g20_clk_pllb_setup(struct device_node *np, | |
69 | struct at91_pmc *pmc); | |
70 | extern void __init of_sama5d3_clk_pll_setup(struct device_node *np, | |
71 | struct at91_pmc *pmc); | |
72 | extern void __init of_at91sam9x5_clk_plldiv_setup(struct device_node *np, | |
73 | struct at91_pmc *pmc); | |
74 | ||
e442d234 BB |
75 | extern void __init of_at91rm9200_clk_master_setup(struct device_node *np, |
76 | struct at91_pmc *pmc); | |
77 | extern void __init of_at91sam9x5_clk_master_setup(struct device_node *np, | |
78 | struct at91_pmc *pmc); | |
79 | ||
5fba62ea BB |
80 | extern void __init of_at91rm9200_clk_sys_setup(struct device_node *np, |
81 | struct at91_pmc *pmc); | |
82 | ||
6114067e BB |
83 | extern void __init of_at91rm9200_clk_periph_setup(struct device_node *np, |
84 | struct at91_pmc *pmc); | |
85 | extern void __init of_at91sam9x5_clk_periph_setup(struct device_node *np, | |
86 | struct at91_pmc *pmc); | |
87 | ||
1f22f8bb BB |
88 | #if defined(CONFIG_AT91_PROGRAMMABLE_CLOCKS) |
89 | extern void __init of_at91rm9200_clk_prog_setup(struct device_node *np, | |
90 | struct at91_pmc *pmc); | |
91 | extern void __init of_at91sam9g45_clk_prog_setup(struct device_node *np, | |
92 | struct at91_pmc *pmc); | |
93 | extern void __init of_at91sam9x5_clk_prog_setup(struct device_node *np, | |
94 | struct at91_pmc *pmc); | |
95 | #endif | |
96 | ||
f090fb37 BB |
97 | #if defined(CONFIG_HAVE_AT91_UTMI) |
98 | extern void __init of_at91sam9x5_clk_utmi_setup(struct device_node *np, | |
99 | struct at91_pmc *pmc); | |
100 | #endif | |
101 | ||
c84a61d8 BB |
102 | #if defined(CONFIG_HAVE_AT91_USB_CLK) |
103 | extern void __init of_at91rm9200_clk_usb_setup(struct device_node *np, | |
104 | struct at91_pmc *pmc); | |
105 | extern void __init of_at91sam9x5_clk_usb_setup(struct device_node *np, | |
106 | struct at91_pmc *pmc); | |
107 | extern void __init of_at91sam9n12_clk_usb_setup(struct device_node *np, | |
108 | struct at91_pmc *pmc); | |
109 | #endif | |
110 | ||
a9c0688f BB |
111 | #if defined(CONFIG_HAVE_AT91_SMD) |
112 | extern void __init of_at91sam9x5_clk_smd_setup(struct device_node *np, | |
113 | struct at91_pmc *pmc); | |
114 | #endif | |
115 | ||
0ad6125b | 116 | #endif /* __PMC_H_ */ |