135 lines
2.9 KiB
C
135 lines
2.9 KiB
C
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/*
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* Copyright (c) 2013 Samsung Electronics Co., Ltd.
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* Copyright (c) 2013 Linaro Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Common Clock Framework support for all PLL's in Samsung platforms
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*/
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#ifndef __SAMSUNG_CLK_PLL_H
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#define __SAMSUNG_CLK_PLL_H
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enum samsung_pll_type {
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pll_2126,
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pll_3000,
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pll_35xx,
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pll_36xx,
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pll_2550,
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pll_2650,
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pll_4500,
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pll_4502,
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pll_4508,
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pll_4600,
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pll_4650,
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pll_4650c,
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pll_6552,
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pll_6552_s3c2416,
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pll_6553,
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pll_s3c2410_mpll,
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pll_s3c2410_upll,
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pll_s3c2440_mpll,
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pll_2550x,
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pll_2550xx,
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pll_2650x,
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pll_2650xx,
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pll_1450x,
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pll_1451x,
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pll_1452x,
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pll_1460x,
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};
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#define PLL_RATE(_fin, _m, _p, _s, _k, _ks) \
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((u64)(_fin) * (BIT(_ks) * (_m) + (_k)) / BIT(_ks) / ((_p) << (_s)))
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#define PLL_VALID_RATE(_fin, _fout, _m, _p, _s, _k, _ks) ((_fout) + \
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BUILD_BUG_ON_ZERO(PLL_RATE(_fin, _m, _p, _s, _k, _ks) != (_fout)))
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#define PLL_35XX_RATE(_fin, _rate, _m, _p, _s) \
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{ \
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.rate = PLL_VALID_RATE(_fin, _rate, \
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_m, _p, _s, 0, 16), \
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.mdiv = (_m), \
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.pdiv = (_p), \
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.sdiv = (_s), \
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}
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#define PLL_S3C2410_MPLL_RATE(_fin, _rate, _m, _p, _s) \
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{ \
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.rate = PLL_VALID_RATE(_fin, _rate, \
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_m + 8, _p + 2, _s, 0, 16), \
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.mdiv = (_m), \
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.pdiv = (_p), \
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.sdiv = (_s), \
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}
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#define PLL_S3C2440_MPLL_RATE(_fin, _rate, _m, _p, _s) \
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{ \
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.rate = PLL_VALID_RATE(_fin, _rate, \
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2 * (_m + 8), _p + 2, _s, 0, 16), \
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.mdiv = (_m), \
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.pdiv = (_p), \
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.sdiv = (_s), \
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}
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#define PLL_36XX_RATE(_fin, _rate, _m, _p, _s, _k) \
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{ \
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.rate = PLL_VALID_RATE(_fin, _rate, \
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_m, _p, _s, _k, 16), \
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.mdiv = (_m), \
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.pdiv = (_p), \
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.sdiv = (_s), \
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.kdiv = (_k), \
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}
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#define PLL_4508_RATE(_fin, _rate, _m, _p, _s, _afc) \
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{ \
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.rate = PLL_VALID_RATE(_fin, _rate, \
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_m, _p, _s - 1, 0, 16), \
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.mdiv = (_m), \
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.pdiv = (_p), \
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.sdiv = (_s), \
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.afc = (_afc), \
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}
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#define PLL_4600_RATE(_fin, _rate, _m, _p, _s, _k, _vsel) \
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{ \
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.rate = PLL_VALID_RATE(_fin, _rate, \
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_m, _p, _s, _k, 16), \
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.mdiv = (_m), \
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.pdiv = (_p), \
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.sdiv = (_s), \
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.kdiv = (_k), \
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.vsel = (_vsel), \
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}
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#define PLL_4650_RATE(_fin, _rate, _m, _p, _s, _k, _mfr, _mrr, _vsel) \
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{ \
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.rate = PLL_VALID_RATE(_fin, _rate, \
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_m, _p, _s, _k, 10), \
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.mdiv = (_m), \
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.pdiv = (_p), \
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.sdiv = (_s), \
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.kdiv = (_k), \
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.mfr = (_mfr), \
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.mrr = (_mrr), \
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.vsel = (_vsel), \
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}
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/* NOTE: Rate table should be kept sorted in descending order. */
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struct samsung_pll_rate_table {
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unsigned int rate;
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unsigned int pdiv;
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unsigned int mdiv;
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unsigned int sdiv;
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unsigned int kdiv;
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unsigned int afc;
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unsigned int mfr;
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unsigned int mrr;
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unsigned int vsel;
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};
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#endif /* __SAMSUNG_CLK_PLL_H */
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