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 */ 132