1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * Copyright (C) 2019
4 * Lukasz Majewski, DENX Software Engineering, lukma@denx.de
5 */
6
7 #ifndef __SANDBOX_CLK_H__
8 #define __SANDBOX_CLK_H__
9
10 #include <linux/clk-provider.h>
11
12 enum {
13 SANDBOX_CLK_PLL2 = 1,
14 SANDBOX_CLK_PLL3,
15 SANDBOX_CLK_PLL3_60M,
16 SANDBOX_CLK_PLL3_80M,
17 SANDBOX_CLK_ECSPI_ROOT,
18 SANDBOX_CLK_ECSPI0,
19 SANDBOX_CLK_ECSPI1,
20 SANDBOX_CLK_USDHC1_SEL,
21 SANDBOX_CLK_USDHC2_SEL,
22 SANDBOX_CLK_I2C,
23 SANDBOX_CLK_I2C_ROOT,
24 };
25
26 enum sandbox_pllv3_type {
27 SANDBOX_PLLV3_GENERIC,
28 SANDBOX_PLLV3_USB,
29 };
30
31 struct clk *sandbox_clk_pllv3(enum sandbox_pllv3_type type, const char *name,
32 const char *parent_name, void __iomem *base,
33 u32 div_mask);
34
sandbox_clk_fixed_factor(const char * name,const char * parent,unsigned int mult,unsigned int div)35 static inline struct clk *sandbox_clk_fixed_factor(const char *name,
36 const char *parent,
37 unsigned int mult,
38 unsigned int div)
39 {
40 return clk_register_fixed_factor(NULL, name, parent,
41 CLK_SET_RATE_PARENT, mult, div);
42 }
43
sandbox_clk_divider(const char * name,const char * parent,void __iomem * reg,u8 shift,u8 width)44 static inline struct clk *sandbox_clk_divider(const char *name,
45 const char *parent,
46 void __iomem *reg, u8 shift,
47 u8 width)
48 {
49 return clk_register_divider(NULL, name, parent, CLK_SET_RATE_PARENT,
50 reg, shift, width, 0);
51 }
52
sandbox_clk_gate(const char * name,const char * parent,void __iomem * reg,u8 bit_idx,u8 clk_gate_flags)53 static inline struct clk *sandbox_clk_gate(const char *name, const char *parent,
54 void __iomem *reg, u8 bit_idx,
55 u8 clk_gate_flags)
56 {
57 return clk_register_gate(NULL, name, parent, CLK_SET_RATE_PARENT,
58 reg, bit_idx, clk_gate_flags, NULL);
59 }
60
61 struct clk *sandbox_clk_register_gate2(struct device *dev, const char *name,
62 const char *parent_name,
63 unsigned long flags,
64 void __iomem *reg, u8 bit_idx,
65 u8 cgr_val, u8 clk_gate_flags);
66
sandbox_clk_gate2(const char * name,const char * parent,void __iomem * reg,u8 shift)67 static inline struct clk *sandbox_clk_gate2(const char *name,
68 const char *parent,
69 void __iomem *reg, u8 shift)
70 {
71 return sandbox_clk_register_gate2(NULL, name, parent,
72 CLK_SET_RATE_PARENT, reg, shift,
73 0x3, 0);
74 }
75
sandbox_clk_mux(const char * name,void __iomem * reg,u8 shift,u8 width,const char * const * parents,int num_parents)76 static inline struct clk *sandbox_clk_mux(const char *name, void __iomem *reg,
77 u8 shift, u8 width,
78 const char * const *parents,
79 int num_parents)
80 {
81 return clk_register_mux(NULL, name, parents, num_parents,
82 CLK_SET_RATE_NO_REPARENT, reg, shift,
83 width, 0);
84 }
85
86 int sandbox_clk_enable_count(struct clk *clk);
87
88 #endif /* __SANDBOX_CLK_H__ */
89