diff options
Diffstat (limited to 'drivers/clk/uniphier/clk-uniphier.h')
| -rw-r--r-- | drivers/clk/uniphier/clk-uniphier.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/drivers/clk/uniphier/clk-uniphier.h b/drivers/clk/uniphier/clk-uniphier.h new file mode 100644 index 000000000..d10a009ad --- /dev/null +++ b/drivers/clk/uniphier/clk-uniphier.h @@ -0,0 +1,163 @@ +/* + * 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__ */ |