clk: renesas: cpg-mssr: Extract common R-Car Gen3 support code

[mirror_ubuntu-zesty-kernel.git] / drivers / clk / renesas / rcar-gen3-cpg.h

/*
 * R-Car Gen3 Clock Pulse Generator
 *
 * Copyright (C) 2015-2016 Glider bvba
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 */

#ifndef __CLK_RENESAS_RCAR_GEN3_CPG_H__
#define __CLK_RENESAS_RCAR_GEN3_CPG_H__

enum rcar_gen3_clk_types {
	CLK_TYPE_GEN3_MAIN = CLK_TYPE_CUSTOM,
	CLK_TYPE_GEN3_PLL0,
	CLK_TYPE_GEN3_PLL1,
	CLK_TYPE_GEN3_PLL2,
	CLK_TYPE_GEN3_PLL3,
	CLK_TYPE_GEN3_PLL4,
	CLK_TYPE_GEN3_SD,
	CLK_TYPE_GEN3_R,
};

#define DEF_GEN3_SD(_name, _id, _parent, _offset)	\
	DEF_BASE(_name, _id, CLK_TYPE_GEN3_SD, _parent, .offset = _offset)

struct rcar_gen3_cpg_pll_config {
	unsigned int extal_div;
	unsigned int pll1_mult;
	unsigned int pll3_mult;
};

#define CPG_RCKCR	0x240

u32 rcar_gen3_read_mode_pins(void);
struct clk *rcar_gen3_cpg_clk_register(struct device *dev,
	const struct cpg_core_clk *core, const struct cpg_mssr_info *info,
	struct clk **clks, void __iomem *base);
int rcar_gen3_cpg_init(const struct rcar_gen3_cpg_pll_config *config,
		       unsigned int clk_extalr);

#endif