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/*
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __CLK_UNIPHIER_H__
#define __CLK_UNIPHIER_H__
struct clk_hw;
struct device;
struct regmap;
#define UNIPHIER_CLK_CPUGEAR_MAX_PARENTS 16
#define UNIPHIER_CLK_MUX_MAX_PARENTS 8
enum uniphier_clk_type {
UNIPHIER_CLK_TYPE_CPUGEAR,
UNIPHIER_CLK_TYPE_FIXED_FACTOR,
UNIPHIER_CLK_TYPE_FIXED_RATE,
UNIPHIER_CLK_TYPE_GATE,
UNIPHIER_CLK_TYPE_MUX,
};
struct uniphier_clk_cpugear_data {
const char *parent_names[UNIPHIER_CLK_CPUGEAR_MAX_PARENTS];
unsigned int num_parents;
unsigned int regbase;
unsigned int mask;
};
struct uniphier_clk_fixed_factor_data {
const char *parent_name;
unsigned int mult;
unsigned int div;
};
struct uniphier_clk_fixed_rate_data {
unsigned long fixed_rate;
};
struct uniphier_clk_gate_data {
const char *parent_name;
unsigned int reg;
unsigned int bit;
};
struct uniphier_clk_mux_data {
const char *parent_names[UNIPHIER_CLK_MUX_MAX_PARENTS];
unsigned int num_parents;
unsigned int reg;
unsigned int masks[UNIPHIER_CLK_MUX_MAX_PARENTS];
unsigned int vals[UNIPHIER_CLK_MUX_MAX_PARENTS];
};
struct uniphier_clk_data {
const char *name;
enum uniphier_clk_type type;
int idx;
union {
struct uniphier_clk_cpugear_data cpugear;
struct uniphier_clk_fixed_factor_data factor;
struct uniphier_clk_fixed_rate_data rate;
struct uniphier_clk_gate_data gate;
struct uniphier_clk_mux_data mux;
} data;
};
#define UNIPHIER_CLK_CPUGEAR(_name, _idx, _regbase, _mask, \
_num_parents, ...) \
{ \
.name = (_name), \
.type = UNIPHIER_CLK_TYPE_CPUGEAR, \
.idx = (_idx), \
.data.cpugear = { \
.parent_names = { __VA_ARGS__ }, \
.num_parents = (_num_parents), \
.regbase = (_regbase), \
.mask = (_mask) \
}, \
}
#define UNIPHIER_CLK_FACTOR(_name, _idx, _parent, _mult, _div) \
{ \
.name = (_name), \
.type = UNIPHIER_CLK_TYPE_FIXED_FACTOR, \
.idx = (_idx), \
.data.factor = { \
.parent_name = (_parent), \
.mult = (_mult), \
.div = (_div), \
}, \
}
#define UNIPHIER_CLK_GATE(_name, _idx, _parent, _reg, _bit) \
{ \
.name = (_name), \
.type = UNIPHIER_CLK_TYPE_GATE, \
.idx = (_idx), \
.data.gate = { \
.parent_name = (_parent), \
.reg = (_reg), \
.bit = (_bit), \
}, \
}
#define UNIPHIER_CLK_DIV(parent, div) \
UNIPHIER_CLK_FACTOR(parent "/" #div, -1, parent, 1, div)
#define UNIPHIER_CLK_DIV2(parent, div0, div1) \
UNIPHIER_CLK_DIV(parent, div0), \
UNIPHIER_CLK_DIV(parent, div1)
#define UNIPHIER_CLK_DIV3(parent, div0, div1, div2) \
UNIPHIER_CLK_DIV2(parent, div0, div1), \
UNIPHIER_CLK_DIV(parent, div2)
#define UNIPHIER_CLK_DIV4(parent, div0, div1, div2, div3) \
UNIPHIER_CLK_DIV2(parent, div0, div1), \
UNIPHIER_CLK_DIV2(parent, div2, div3)
struct clk_hw *uniphier_clk_register_cpugear(struct device *dev,
struct regmap *regmap,
const char *name,
const struct uniphier_clk_cpugear_data *data);
struct clk_hw *uniphier_clk_register_fixed_factor(struct device *dev,
const char *name,
const struct uniphier_clk_fixed_factor_data *data);
struct clk_hw *uniphier_clk_register_fixed_rate(struct device *dev,
const char *name,
const struct uniphier_clk_fixed_rate_data *data);
struct clk_hw *uniphier_clk_register_gate(struct device *dev,
struct regmap *regmap,
const char *name,
const struct uniphier_clk_gate_data *data);
struct clk_hw *uniphier_clk_register_mux(struct device *dev,
struct regmap *regmap,
const char *name,
const struct uniphier_clk_mux_data *data);
extern const struct uniphier_clk_data uniphier_ld4_sys_clk_data[];
extern const struct uniphier_clk_data uniphier_pro4_sys_clk_data[];
extern const struct uniphier_clk_data uniphier_sld8_sys_clk_data[];
extern const struct uniphier_clk_data uniphier_pro5_sys_clk_data[];
extern const struct uniphier_clk_data uniphier_pxs2_sys_clk_data[];
extern const struct uniphier_clk_data uniphier_ld11_sys_clk_data[];
extern const struct uniphier_clk_data uniphier_ld20_sys_clk_data[];
extern const struct uniphier_clk_data uniphier_pxs3_sys_clk_data[];
extern const struct uniphier_clk_data uniphier_ld4_mio_clk_data[];
extern const struct uniphier_clk_data uniphier_pro5_sd_clk_data[];
extern const struct uniphier_clk_data uniphier_ld4_peri_clk_data[];
extern const struct uniphier_clk_data uniphier_pro4_peri_clk_data[];
#endif /* __CLK_UNIPHIER_H__ */
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