1 files changed, 131 insertions, 0 deletions
diff --git a/drivers/clk/samsung/clk-pll.h b/drivers/clk/samsung/clk-pll.h
new file mode 100644
index 000000000..79e41c226
--- /dev/null
+++ b/drivers/clk/samsung/clk-pll.h
@@ -0,0 +1,131 @@
+/* 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_1450x,
+	pll_1451x,
+	pll_1452x,
+	pll_1460x,
+};
+
+#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 */