1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2019 DENX Software Engineering
4 * Lukasz Majewski, DENX Software Engineering, lukma@denx.de
6 #ifndef __MACH_IMX_CLK_H
7 #define __MACH_IMX_CLK_H
9 #include <linux/clk-provider.h>
23 enum imx_pll14xx_type {
28 /* NOTE: Rate table should be kept sorted in descending order. */
29 struct imx_pll14xx_rate_table {
37 struct imx_pll14xx_clk {
38 enum imx_pll14xx_type type;
39 const struct imx_pll14xx_rate_table *rate_table;
44 struct clk *imx_clk_pll14xx(const char *name, const char *parent_name,
46 const struct imx_pll14xx_clk *pll_clk);
48 struct clk *clk_register_gate2(struct device *dev, const char *name,
49 const char *parent_name, unsigned long flags,
50 void __iomem *reg, u8 bit_idx, u8 cgr_val,
53 struct clk *imx_clk_pllv3(enum imx_pllv3_type type, const char *name,
54 const char *parent_name, void __iomem *base,
57 static inline struct clk *imx_clk_gate2(const char *name, const char *parent,
58 void __iomem *reg, u8 shift)
60 return clk_register_gate2(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
64 static inline struct clk *imx_clk_gate4(const char *name, const char *parent,
65 void __iomem *reg, u8 shift)
67 return clk_register_gate2(NULL, name, parent,
68 CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
72 static inline struct clk *imx_clk_gate4_flags(const char *name,
73 const char *parent, void __iomem *reg, u8 shift,
76 return clk_register_gate2(NULL, name, parent,
77 flags | CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
81 static inline struct clk *imx_clk_fixed_factor(const char *name,
82 const char *parent, unsigned int mult, unsigned int div)
84 return clk_register_fixed_factor(NULL, name, parent,
85 CLK_SET_RATE_PARENT, mult, div);
88 static inline struct clk *imx_clk_divider(const char *name, const char *parent,
89 void __iomem *reg, u8 shift, u8 width)
91 return clk_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT,
92 reg, shift, width, 0);
95 static inline struct clk *imx_clk_divider2(const char *name, const char *parent,
96 void __iomem *reg, u8 shift, u8 width)
98 return clk_register_divider(NULL, name, parent,
99 CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
100 reg, shift, width, 0);
103 struct clk *imx_clk_pfd(const char *name, const char *parent_name,
104 void __iomem *reg, u8 idx);
106 struct clk *imx_clk_fixup_mux(const char *name, void __iomem *reg,
107 u8 shift, u8 width, const char * const *parents,
108 int num_parents, void (*fixup)(u32 *val));
110 static inline struct clk *imx_clk_mux_flags(const char *name,
111 void __iomem *reg, u8 shift, u8 width,
112 const char * const *parents, int num_parents,
115 return clk_register_mux(NULL, name, parents, num_parents,
116 flags | CLK_SET_RATE_NO_REPARENT, reg, shift,
120 static inline struct clk *imx_clk_mux(const char *name, void __iomem *reg,
121 u8 shift, u8 width, const char * const *parents,
124 return clk_register_mux(NULL, name, parents, num_parents,
125 CLK_SET_RATE_NO_REPARENT, reg, shift,
129 static inline struct clk *imx_clk_mux2(const char *name, void __iomem *reg,
130 u8 shift, u8 width, const char * const *parents,
133 return clk_register_mux(NULL, name, parents, num_parents,
134 CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE,
135 reg, shift, width, 0);
138 static inline struct clk *imx_clk_gate(const char *name, const char *parent,
139 void __iomem *reg, u8 shift)
141 return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT, reg,
145 static inline struct clk *imx_clk_gate_flags(const char *name, const char *parent,
146 void __iomem *reg, u8 shift, unsigned long flags)
148 return clk_register_gate(NULL, name, parent, flags | CLK_SET_RATE_PARENT, reg,
152 static inline struct clk *imx_clk_gate3(const char *name, const char *parent,
153 void __iomem *reg, u8 shift)
155 return clk_register_gate(NULL, name, parent,
156 CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE,
157 reg, shift, 0, NULL);
160 struct clk *imx8m_clk_composite_flags(const char *name,
161 const char * const *parent_names,
162 int num_parents, void __iomem *reg, unsigned long flags);
164 #define __imx8m_clk_composite(name, parent_names, reg, flags) \
165 imx8m_clk_composite_flags(name, parent_names, \
166 ARRAY_SIZE(parent_names), reg, \
167 flags | CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE)
169 #define imx8m_clk_composite(name, parent_names, reg) \
170 __imx8m_clk_composite(name, parent_names, reg, 0)
172 #define imx8m_clk_composite_critical(name, parent_names, reg) \
173 __imx8m_clk_composite(name, parent_names, reg, CLK_IS_CRITICAL)
175 #endif /* __MACH_IMX_CLK_H */