1 /* 2 * Copyright (c) 2013 Samsung Electronics Co., Ltd. 3 * Copyright (c) 2013 Linaro Ltd. 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 * 9 * Common Clock Framework support for all PLL's in Samsung platforms 10 */ 11 12 #ifndef __SAMSUNG_CLK_PLL_H 13 #define __SAMSUNG_CLK_PLL_H 14 15 enum samsung_pll_type { 16 pll_2126, 17 pll_3000, 18 pll_35xx, 19 pll_36xx, 20 pll_2550, 21 pll_2650, 22 pll_4500, 23 pll_4502, 24 pll_4508, 25 pll_4600, 26 pll_4650, 27 pll_4650c, 28 pll_6552, 29 pll_6552_s3c2416, 30 pll_6553, 31 pll_s3c2410_mpll, 32 pll_s3c2410_upll, 33 pll_s3c2440_mpll, 34 pll_2550x, 35 pll_2550xx, 36 pll_2650x, 37 pll_2650xx, 38 pll_1450x, 39 pll_1451x, 40 pll_1452x, 41 pll_1460x, 42 }; 43 44 #define PLL_RATE(_fin, _m, _p, _s, _k, _ks) \ 45 ((u64)(_fin) * (BIT(_ks) * (_m) + (_k)) / BIT(_ks) / ((_p) << (_s))) 46 #define PLL_VALID_RATE(_fin, _fout, _m, _p, _s, _k, _ks) ((_fout) + \ 47 BUILD_BUG_ON_ZERO(PLL_RATE(_fin, _m, _p, _s, _k, _ks) != (_fout))) 48 49 #define PLL_35XX_RATE(_fin, _rate, _m, _p, _s) \ 50 { \ 51 .rate = PLL_VALID_RATE(_fin, _rate, \ 52 _m, _p, _s, 0, 16), \ 53 .mdiv = (_m), \ 54 .pdiv = (_p), \ 55 .sdiv = (_s), \ 56 } 57 58 #define PLL_S3C2410_MPLL_RATE(_fin, _rate, _m, _p, _s) \ 59 { \ 60 .rate = PLL_VALID_RATE(_fin, _rate, \ 61 _m + 8, _p + 2, _s, 0, 16), \ 62 .mdiv = (_m), \ 63 .pdiv = (_p), \ 64 .sdiv = (_s), \ 65 } 66 67 #define PLL_S3C2440_MPLL_RATE(_fin, _rate, _m, _p, _s) \ 68 { \ 69 .rate = PLL_VALID_RATE(_fin, _rate, \ 70 2 * (_m + 8), _p + 2, _s, 0, 16), \ 71 .mdiv = (_m), \ 72 .pdiv = (_p), \ 73 .sdiv = (_s), \ 74 } 75 76 #define PLL_36XX_RATE(_fin, _rate, _m, _p, _s, _k) \ 77 { \ 78 .rate = PLL_VALID_RATE(_fin, _rate, \ 79 _m, _p, _s, _k, 16), \ 80 .mdiv = (_m), \ 81 .pdiv = (_p), \ 82 .sdiv = (_s), \ 83 .kdiv = (_k), \ 84 } 85 86 #define PLL_4508_RATE(_fin, _rate, _m, _p, _s, _afc) \ 87 { \ 88 .rate = PLL_VALID_RATE(_fin, _rate, \ 89 _m, _p, _s - 1, 0, 16), \ 90 .mdiv = (_m), \ 91 .pdiv = (_p), \ 92 .sdiv = (_s), \ 93 .afc = (_afc), \ 94 } 95 96 #define PLL_4600_RATE(_fin, _rate, _m, _p, _s, _k, _vsel) \ 97 { \ 98 .rate = PLL_VALID_RATE(_fin, _rate, \ 99 _m, _p, _s, _k, 16), \ 100 .mdiv = (_m), \ 101 .pdiv = (_p), \ 102 .sdiv = (_s), \ 103 .kdiv = (_k), \ 104 .vsel = (_vsel), \ 105 } 106 107 #define PLL_4650_RATE(_fin, _rate, _m, _p, _s, _k, _mfr, _mrr, _vsel) \ 108 { \ 109 .rate = PLL_VALID_RATE(_fin, _rate, \ 110 _m, _p, _s, _k, 10), \ 111 .mdiv = (_m), \ 112 .pdiv = (_p), \ 113 .sdiv = (_s), \ 114 .kdiv = (_k), \ 115 .mfr = (_mfr), \ 116 .mrr = (_mrr), \ 117 .vsel = (_vsel), \ 118 } 119 120 /* NOTE: Rate table should be kept sorted in descending order. */ 121 122 struct samsung_pll_rate_table { 123 unsigned int rate; 124 unsigned int pdiv; 125 unsigned int mdiv; 126 unsigned int sdiv; 127 unsigned int kdiv; 128 unsigned int afc; 129 unsigned int mfr; 130 unsigned int mrr; 131 unsigned int vsel; 132 }; 133 134 #endif /* __SAMSUNG_CLK_PLL_H */ 135
