xref: /openbmc/linux/drivers/clk/qcom/clk-alpha-pll.h (revision 9659281c)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2015, 2018, The Linux Foundation. All rights reserved. */
3 
4 #ifndef __QCOM_CLK_ALPHA_PLL_H__
5 #define __QCOM_CLK_ALPHA_PLL_H__
6 
7 #include <linux/clk-provider.h>
8 #include "clk-regmap.h"
9 
10 /* Alpha PLL types */
11 enum {
12 	CLK_ALPHA_PLL_TYPE_DEFAULT,
13 	CLK_ALPHA_PLL_TYPE_HUAYRA,
14 	CLK_ALPHA_PLL_TYPE_BRAMMO,
15 	CLK_ALPHA_PLL_TYPE_FABIA,
16 	CLK_ALPHA_PLL_TYPE_TRION,
17 	CLK_ALPHA_PLL_TYPE_LUCID = CLK_ALPHA_PLL_TYPE_TRION,
18 	CLK_ALPHA_PLL_TYPE_AGERA,
19 	CLK_ALPHA_PLL_TYPE_ZONDA,
20 	CLK_ALPHA_PLL_TYPE_MAX,
21 };
22 
23 enum {
24 	PLL_OFF_L_VAL,
25 	PLL_OFF_CAL_L_VAL,
26 	PLL_OFF_ALPHA_VAL,
27 	PLL_OFF_ALPHA_VAL_U,
28 	PLL_OFF_USER_CTL,
29 	PLL_OFF_USER_CTL_U,
30 	PLL_OFF_USER_CTL_U1,
31 	PLL_OFF_CONFIG_CTL,
32 	PLL_OFF_CONFIG_CTL_U,
33 	PLL_OFF_CONFIG_CTL_U1,
34 	PLL_OFF_TEST_CTL,
35 	PLL_OFF_TEST_CTL_U,
36 	PLL_OFF_TEST_CTL_U1,
37 	PLL_OFF_STATUS,
38 	PLL_OFF_OPMODE,
39 	PLL_OFF_FRAC,
40 	PLL_OFF_CAL_VAL,
41 	PLL_OFF_MAX_REGS
42 };
43 
44 extern const u8 clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_MAX][PLL_OFF_MAX_REGS];
45 
46 struct pll_vco {
47 	unsigned long min_freq;
48 	unsigned long max_freq;
49 	u32 val;
50 };
51 
52 #define VCO(a, b, c) { \
53 	.val = a,\
54 	.min_freq = b,\
55 	.max_freq = c,\
56 }
57 
58 /**
59  * struct clk_alpha_pll - phase locked loop (PLL)
60  * @offset: base address of registers
61  * @vco_table: array of VCO settings
62  * @regs: alpha pll register map (see @clk_alpha_pll_regs)
63  * @clkr: regmap clock handle
64  */
65 struct clk_alpha_pll {
66 	u32 offset;
67 	const u8 *regs;
68 
69 	const struct pll_vco *vco_table;
70 	size_t num_vco;
71 #define SUPPORTS_OFFLINE_REQ	BIT(0)
72 #define SUPPORTS_FSM_MODE	BIT(2)
73 #define SUPPORTS_DYNAMIC_UPDATE	BIT(3)
74 	u8 flags;
75 
76 	struct clk_regmap clkr;
77 };
78 
79 /**
80  * struct clk_alpha_pll_postdiv - phase locked loop (PLL) post-divider
81  * @offset: base address of registers
82  * @regs: alpha pll register map (see @clk_alpha_pll_regs)
83  * @width: width of post-divider
84  * @post_div_shift: shift to differentiate between odd & even post-divider
85  * @post_div_table: table with PLL odd and even post-divider settings
86  * @num_post_div: Number of PLL post-divider settings
87  *
88  * @clkr: regmap clock handle
89  */
90 struct clk_alpha_pll_postdiv {
91 	u32 offset;
92 	u8 width;
93 	const u8 *regs;
94 
95 	struct clk_regmap clkr;
96 	int post_div_shift;
97 	const struct clk_div_table *post_div_table;
98 	size_t num_post_div;
99 };
100 
101 struct alpha_pll_config {
102 	u32 l;
103 	u32 alpha;
104 	u32 alpha_hi;
105 	u32 config_ctl_val;
106 	u32 config_ctl_hi_val;
107 	u32 config_ctl_hi1_val;
108 	u32 user_ctl_val;
109 	u32 user_ctl_hi_val;
110 	u32 user_ctl_hi1_val;
111 	u32 test_ctl_val;
112 	u32 test_ctl_hi_val;
113 	u32 test_ctl_hi1_val;
114 	u32 main_output_mask;
115 	u32 aux_output_mask;
116 	u32 aux2_output_mask;
117 	u32 early_output_mask;
118 	u32 alpha_en_mask;
119 	u32 alpha_mode_mask;
120 	u32 pre_div_val;
121 	u32 pre_div_mask;
122 	u32 post_div_val;
123 	u32 post_div_mask;
124 	u32 vco_val;
125 	u32 vco_mask;
126 };
127 
128 extern const struct clk_ops clk_alpha_pll_ops;
129 extern const struct clk_ops clk_alpha_pll_fixed_ops;
130 extern const struct clk_ops clk_alpha_pll_hwfsm_ops;
131 extern const struct clk_ops clk_alpha_pll_postdiv_ops;
132 extern const struct clk_ops clk_alpha_pll_huayra_ops;
133 extern const struct clk_ops clk_alpha_pll_postdiv_ro_ops;
134 
135 extern const struct clk_ops clk_alpha_pll_fabia_ops;
136 extern const struct clk_ops clk_alpha_pll_fixed_fabia_ops;
137 extern const struct clk_ops clk_alpha_pll_postdiv_fabia_ops;
138 
139 extern const struct clk_ops clk_alpha_pll_trion_ops;
140 extern const struct clk_ops clk_alpha_pll_fixed_trion_ops;
141 extern const struct clk_ops clk_alpha_pll_postdiv_trion_ops;
142 
143 extern const struct clk_ops clk_alpha_pll_lucid_ops;
144 #define clk_alpha_pll_fixed_lucid_ops clk_alpha_pll_fixed_trion_ops
145 extern const struct clk_ops clk_alpha_pll_postdiv_lucid_ops;
146 extern const struct clk_ops clk_alpha_pll_agera_ops;
147 
148 extern const struct clk_ops clk_alpha_pll_lucid_5lpe_ops;
149 extern const struct clk_ops clk_alpha_pll_fixed_lucid_5lpe_ops;
150 extern const struct clk_ops clk_alpha_pll_postdiv_lucid_5lpe_ops;
151 
152 extern const struct clk_ops clk_alpha_pll_zonda_ops;
153 #define clk_alpha_pll_postdiv_zonda_ops clk_alpha_pll_postdiv_fabia_ops
154 
155 void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
156 			     const struct alpha_pll_config *config);
157 void clk_fabia_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
158 				const struct alpha_pll_config *config);
159 void clk_trion_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
160 			     const struct alpha_pll_config *config);
161 void clk_agera_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
162 				const struct alpha_pll_config *config);
163 #define clk_lucid_pll_configure(pll, regmap, config) \
164 	clk_trion_pll_configure(pll, regmap, config)
165 
166 void clk_zonda_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
167 			     const struct alpha_pll_config *config);
168 
169 
170 #endif
171