1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (c) 2013 Samsung Electronics Co., Ltd.
4 * Copyright (c) 2013 Linaro Ltd.
5 *
6 * Common Clock Framework support for all PLL's in Samsung platforms
7 */
8
9 #ifndef __SAMSUNG_CLK_PLL_H
10 #define __SAMSUNG_CLK_PLL_H
11
12 enum samsung_pll_type {
13 pll_2126,
14 pll_3000,
15 pll_35xx,
16 pll_36xx,
17 pll_2550,
18 pll_2650,
19 pll_4500,
20 pll_4502,
21 pll_4508,
22 pll_4600,
23 pll_4650,
24 pll_4650c,
25 pll_6552,
26 pll_6552_s3c2416,
27 pll_6553,
28 pll_s3c2410_mpll,
29 pll_s3c2410_upll,
30 pll_s3c2440_mpll,
31 pll_2550x,
32 pll_2550xx,
33 pll_2650x,
34 pll_2650xx,
35 pll_1450x,
36 pll_1451x,
37 pll_1452x,
38 pll_1460x,
39 };
40
41 #define PLL_RATE(_fin, _m, _p, _s, _k, _ks) \
42 ((u64)(_fin) * (BIT(_ks) * (_m) + (_k)) / BIT(_ks) / ((_p) << (_s)))
43 #define PLL_VALID_RATE(_fin, _fout, _m, _p, _s, _k, _ks) ((_fout) + \
44 BUILD_BUG_ON_ZERO(PLL_RATE(_fin, _m, _p, _s, _k, _ks) != (_fout)))
45
46 #define PLL_35XX_RATE(_fin, _rate, _m, _p, _s) \
47 { \
48 .rate = PLL_VALID_RATE(_fin, _rate, \
49 _m, _p, _s, 0, 16), \
50 .mdiv = (_m), \
51 .pdiv = (_p), \
52 .sdiv = (_s), \
53 }
54
55 #define PLL_S3C2410_MPLL_RATE(_fin, _rate, _m, _p, _s) \
56 { \
57 .rate = PLL_VALID_RATE(_fin, _rate, \
58 _m + 8, _p + 2, _s, 0, 16), \
59 .mdiv = (_m), \
60 .pdiv = (_p), \
61 .sdiv = (_s), \
62 }
63
64 #define PLL_S3C2440_MPLL_RATE(_fin, _rate, _m, _p, _s) \
65 { \
66 .rate = PLL_VALID_RATE(_fin, _rate, \
67 2 * (_m + 8), _p + 2, _s, 0, 16), \
68 .mdiv = (_m), \
69 .pdiv = (_p), \
70 .sdiv = (_s), \
71 }
72
73 #define PLL_36XX_RATE(_fin, _rate, _m, _p, _s, _k) \
74 { \
75 .rate = PLL_VALID_RATE(_fin, _rate, \
76 _m, _p, _s, _k, 16), \
77 .mdiv = (_m), \
78 .pdiv = (_p), \
79 .sdiv = (_s), \
80 .kdiv = (_k), \
81 }
82
83 #define PLL_4508_RATE(_fin, _rate, _m, _p, _s, _afc) \
84 { \
85 .rate = PLL_VALID_RATE(_fin, _rate, \
86 _m, _p, _s - 1, 0, 16), \
87 .mdiv = (_m), \
88 .pdiv = (_p), \
89 .sdiv = (_s), \
90 .afc = (_afc), \
91 }
92
93 #define PLL_4600_RATE(_fin, _rate, _m, _p, _s, _k, _vsel) \
94 { \
95 .rate = PLL_VALID_RATE(_fin, _rate, \
96 _m, _p, _s, _k, 16), \
97 .mdiv = (_m), \
98 .pdiv = (_p), \
99 .sdiv = (_s), \
100 .kdiv = (_k), \
101 .vsel = (_vsel), \
102 }
103
104 #define PLL_4650_RATE(_fin, _rate, _m, _p, _s, _k, _mfr, _mrr, _vsel) \
105 { \
106 .rate = PLL_VALID_RATE(_fin, _rate, \
107 _m, _p, _s, _k, 10), \
108 .mdiv = (_m), \
109 .pdiv = (_p), \
110 .sdiv = (_s), \
111 .kdiv = (_k), \
112 .mfr = (_mfr), \
113 .mrr = (_mrr), \
114 .vsel = (_vsel), \
115 }
116
117 /* NOTE: Rate table should be kept sorted in descending order. */
118
119 struct samsung_pll_rate_table {
120 unsigned int rate;
121 unsigned int pdiv;
122 unsigned int mdiv;
123 unsigned int sdiv;
124 unsigned int kdiv;
125 unsigned int afc;
126 unsigned int mfr;
127 unsigned int mrr;
128 unsigned int vsel;
129 };
130
131 #endif /* __SAMSUNG_CLK_PLL_H */