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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/clk/samsung/clk-pll.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/clk/samsung/clk-pll.h')
-rw-r--r--drivers/clk/samsung/clk-pll.h135
1 files changed, 135 insertions, 0 deletions
diff --git a/drivers/clk/samsung/clk-pll.h b/drivers/clk/samsung/clk-pll.h
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+++ b/drivers/clk/samsung/clk-pll.h
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+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2013 Linaro Ltd.
+ *
+ * Common Clock Framework support for all PLL's in Samsung platforms
+*/
+
+#ifndef __SAMSUNG_CLK_PLL_H
+#define __SAMSUNG_CLK_PLL_H
+
+enum samsung_pll_type {
+ pll_2126,
+ pll_3000,
+ pll_35xx,
+ pll_36xx,
+ pll_2550,
+ pll_2650,
+ pll_4500,
+ pll_4502,
+ pll_4508,
+ pll_4600,
+ pll_4650,
+ pll_4650c,
+ pll_6552,
+ pll_6552_s3c2416,
+ pll_6553,
+ pll_s3c2410_mpll,
+ pll_s3c2410_upll,
+ pll_s3c2440_mpll,
+ pll_2550x,
+ pll_2550xx,
+ pll_2650x,
+ pll_2650xx,
+ pll_1417x,
+ pll_1450x,
+ pll_1451x,
+ pll_1452x,
+ pll_1460x,
+ pll_0822x,
+ pll_0831x,
+ pll_142xx,
+};
+
+#define PLL_RATE(_fin, _m, _p, _s, _k, _ks) \
+ ((u64)(_fin) * (BIT(_ks) * (_m) + (_k)) / BIT(_ks) / ((_p) << (_s)))
+#define PLL_VALID_RATE(_fin, _fout, _m, _p, _s, _k, _ks) ((_fout) + \
+ BUILD_BUG_ON_ZERO(PLL_RATE(_fin, _m, _p, _s, _k, _ks) != (_fout)))
+
+#define PLL_35XX_RATE(_fin, _rate, _m, _p, _s) \
+ { \
+ .rate = PLL_VALID_RATE(_fin, _rate, \
+ _m, _p, _s, 0, 16), \
+ .mdiv = (_m), \
+ .pdiv = (_p), \
+ .sdiv = (_s), \
+ }
+
+#define PLL_S3C2410_MPLL_RATE(_fin, _rate, _m, _p, _s) \
+ { \
+ .rate = PLL_VALID_RATE(_fin, _rate, \
+ _m + 8, _p + 2, _s, 0, 16), \
+ .mdiv = (_m), \
+ .pdiv = (_p), \
+ .sdiv = (_s), \
+ }
+
+#define PLL_S3C2440_MPLL_RATE(_fin, _rate, _m, _p, _s) \
+ { \
+ .rate = PLL_VALID_RATE(_fin, _rate, \
+ 2 * (_m + 8), _p + 2, _s, 0, 16), \
+ .mdiv = (_m), \
+ .pdiv = (_p), \
+ .sdiv = (_s), \
+ }
+
+#define PLL_36XX_RATE(_fin, _rate, _m, _p, _s, _k) \
+ { \
+ .rate = PLL_VALID_RATE(_fin, _rate, \
+ _m, _p, _s, _k, 16), \
+ .mdiv = (_m), \
+ .pdiv = (_p), \
+ .sdiv = (_s), \
+ .kdiv = (_k), \
+ }
+
+#define PLL_4508_RATE(_fin, _rate, _m, _p, _s, _afc) \
+ { \
+ .rate = PLL_VALID_RATE(_fin, _rate, \
+ _m, _p, _s - 1, 0, 16), \
+ .mdiv = (_m), \
+ .pdiv = (_p), \
+ .sdiv = (_s), \
+ .afc = (_afc), \
+ }
+
+#define PLL_4600_RATE(_fin, _rate, _m, _p, _s, _k, _vsel) \
+ { \
+ .rate = PLL_VALID_RATE(_fin, _rate, \
+ _m, _p, _s, _k, 16), \
+ .mdiv = (_m), \
+ .pdiv = (_p), \
+ .sdiv = (_s), \
+ .kdiv = (_k), \
+ .vsel = (_vsel), \
+ }
+
+#define PLL_4650_RATE(_fin, _rate, _m, _p, _s, _k, _mfr, _mrr, _vsel) \
+ { \
+ .rate = PLL_VALID_RATE(_fin, _rate, \
+ _m, _p, _s, _k, 10), \
+ .mdiv = (_m), \
+ .pdiv = (_p), \
+ .sdiv = (_s), \
+ .kdiv = (_k), \
+ .mfr = (_mfr), \
+ .mrr = (_mrr), \
+ .vsel = (_vsel), \
+ }
+
+/* NOTE: Rate table should be kept sorted in descending order. */
+
+struct samsung_pll_rate_table {
+ unsigned int rate;
+ unsigned int pdiv;
+ unsigned int mdiv;
+ unsigned int sdiv;
+ unsigned int kdiv;
+ unsigned int afc;
+ unsigned int mfr;
+ unsigned int mrr;
+ unsigned int vsel;
+};
+
+#endif /* __SAMSUNG_CLK_PLL_H */