xref: /openbmc/linux/drivers/clk/berlin/berlin2-div.h (revision b830f94f)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (c) 2014 Marvell Technology Group Ltd.
4  *
5  * Alexandre Belloni <alexandre.belloni@free-electrons.com>
6  * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
7  */
8 #ifndef __BERLIN2_DIV_H
9 #define __BERLIN2_DIV_H
10 
11 struct clk_hw;
12 
13 #define BERLIN2_DIV_HAS_GATE		BIT(0)
14 #define BERLIN2_DIV_HAS_MUX		BIT(1)
15 
16 #define BERLIN2_PLL_SELECT(_off, _sh)	\
17 	.pll_select_offs = _off,	\
18 	.pll_select_shift = _sh
19 
20 #define BERLIN2_PLL_SWITCH(_off, _sh)	\
21 	.pll_switch_offs = _off,	\
22 	.pll_switch_shift = _sh
23 
24 #define BERLIN2_DIV_SELECT(_off, _sh)	\
25 	.div_select_offs = _off,	\
26 	.div_select_shift = _sh
27 
28 #define BERLIN2_DIV_SWITCH(_off, _sh)	\
29 	.div_switch_offs = _off,	\
30 	.div_switch_shift = _sh
31 
32 #define BERLIN2_DIV_D3SWITCH(_off, _sh)	\
33 	.div3_switch_offs = _off,	\
34 	.div3_switch_shift = _sh
35 
36 #define BERLIN2_DIV_GATE(_off, _sh)	\
37 	.gate_offs = _off,		\
38 	.gate_shift = _sh
39 
40 #define BERLIN2_SINGLE_DIV(_off)	\
41 	BERLIN2_DIV_GATE(_off, 0),	\
42 	BERLIN2_PLL_SELECT(_off, 1),	\
43 	BERLIN2_PLL_SWITCH(_off, 4),	\
44 	BERLIN2_DIV_SWITCH(_off, 5),	\
45 	BERLIN2_DIV_D3SWITCH(_off, 6),	\
46 	BERLIN2_DIV_SELECT(_off, 7)
47 
48 struct berlin2_div_map {
49 	u16 pll_select_offs;
50 	u16 pll_switch_offs;
51 	u16 div_select_offs;
52 	u16 div_switch_offs;
53 	u16 div3_switch_offs;
54 	u16 gate_offs;
55 	u8 pll_select_shift;
56 	u8 pll_switch_shift;
57 	u8 div_select_shift;
58 	u8 div_switch_shift;
59 	u8 div3_switch_shift;
60 	u8 gate_shift;
61 };
62 
63 struct berlin2_div_data {
64 	const char *name;
65 	const u8 *parent_ids;
66 	int num_parents;
67 	unsigned long flags;
68 	struct berlin2_div_map map;
69 	u8 div_flags;
70 };
71 
72 struct clk_hw *
73 berlin2_div_register(const struct berlin2_div_map *map,
74 	     void __iomem *base,  const char *name, u8 div_flags,
75 	     const char **parent_names, int num_parents,
76 	     unsigned long flags,  spinlock_t *lock);
77 
78 #endif /* __BERLIN2_DIV_H */
79