drivers/clk/samsung/clk-pll.h

   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 */