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f33807c306
pll4311 (also known in the vendor kernel as frd_4311_rpll) is a PLL used
in the Exynos2200 SoC. It's an integer/fractional PLL with mid frequency
FVCO (650 to 3500Mhz).
The PLL is functionally similar enough to pll531x, so the same code can
handle both.
Locktime for pll4311 is 500 - the same as the pll531x lock factor. MDIV,
PDIV, SDIV and FDIV masks and bit shifts are also the same as pll531x.
When defining a PLL, the "con" parameter should be set to CON3
register, like this:
PLL(pll_4311, CLK_FOUT_SHARED0_PLL, "fout_shared0_pll", "oscclk",
PLL_LOCKTIME_PLL_SHARED0, PLL_CON3_PLL_SHARED0, NULL),
Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Link: https://lore.kernel.org/r/20250223115601.723886-3-ivo.ivanov.ivanov1@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
127 lines
2.5 KiB
C
127 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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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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* 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_2550x,
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pll_2550xx,
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pll_2650x,
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pll_2650xx,
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pll_1417x,
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pll_1418x,
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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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pll_0818x,
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pll_0822x,
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pll_0831x,
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pll_142xx,
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pll_0516x,
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pll_0517x,
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pll_0518x,
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pll_531x,
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pll_1051x,
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pll_1052x,
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pll_0717x,
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pll_0718x,
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pll_0732x,
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pll_4311,
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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_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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