xref: /openbmc/linux/drivers/clk/qcom/clk-alpha-pll.h (revision 64288aa9)
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_LUCID_EVO,
21 	CLK_ALPHA_PLL_TYPE_MAX,
22 };
23 
24 enum {
25 	PLL_OFF_L_VAL,
26 	PLL_OFF_CAL_L_VAL,
27 	PLL_OFF_ALPHA_VAL,
28 	PLL_OFF_ALPHA_VAL_U,
29 	PLL_OFF_USER_CTL,
30 	PLL_OFF_USER_CTL_U,
31 	PLL_OFF_USER_CTL_U1,
32 	PLL_OFF_CONFIG_CTL,
33 	PLL_OFF_CONFIG_CTL_U,
34 	PLL_OFF_CONFIG_CTL_U1,
35 	PLL_OFF_TEST_CTL,
36 	PLL_OFF_TEST_CTL_U,
37 	PLL_OFF_TEST_CTL_U1,
38 	PLL_OFF_STATUS,
39 	PLL_OFF_OPMODE,
40 	PLL_OFF_FRAC,
41 	PLL_OFF_CAL_VAL,
42 	PLL_OFF_MAX_REGS
43 };
44 
45 extern const u8 clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_MAX][PLL_OFF_MAX_REGS];
46 
47 struct pll_vco {
48 	unsigned long min_freq;
49 	unsigned long max_freq;
50 	u32 val;
51 };
52 
53 #define VCO(a, b, c) { \
54 	.val = a,\
55 	.min_freq = b,\
56 	.max_freq = c,\
57 }
58 
59 /**
60  * struct clk_alpha_pll - phase locked loop (PLL)
61  * @offset: base address of registers
62  * @vco_table: array of VCO settings
63  * @regs: alpha pll register map (see @clk_alpha_pll_regs)
64  * @clkr: regmap clock handle
65  */
66 struct clk_alpha_pll {
67 	u32 offset;
68 	const u8 *regs;
69 
70 	const struct pll_vco *vco_table;
71 	size_t num_vco;
72 #define SUPPORTS_OFFLINE_REQ	BIT(0)
73 #define SUPPORTS_FSM_MODE	BIT(2)
74 #define SUPPORTS_DYNAMIC_UPDATE	BIT(3)
75 	u8 flags;
76 
77 	struct clk_regmap clkr;
78 };
79 
80 /**
81  * struct clk_alpha_pll_postdiv - phase locked loop (PLL) post-divider
82  * @offset: base address of registers
83  * @regs: alpha pll register map (see @clk_alpha_pll_regs)
84  * @width: width of post-divider
85  * @post_div_shift: shift to differentiate between odd & even post-divider
86  * @post_div_table: table with PLL odd and even post-divider settings
87  * @num_post_div: Number of PLL post-divider settings
88  *
89  * @clkr: regmap clock handle
90  */
91 struct clk_alpha_pll_postdiv {
92 	u32 offset;
93 	u8 width;
94 	const u8 *regs;
95 
96 	struct clk_regmap clkr;
97 	int post_div_shift;
98 	const struct clk_div_table *post_div_table;
99 	size_t num_post_div;
100 };
101 
102 struct alpha_pll_config {
103 	u32 l;
104 	u32 alpha;
105 	u32 alpha_hi;
106 	u32 config_ctl_val;
107 	u32 config_ctl_hi_val;
108 	u32 config_ctl_hi1_val;
109 	u32 user_ctl_val;
110 	u32 user_ctl_hi_val;
111 	u32 user_ctl_hi1_val;
112 	u32 test_ctl_val;
113 	u32 test_ctl_hi_val;
114 	u32 test_ctl_hi1_val;
115 	u32 main_output_mask;
116 	u32 aux_output_mask;
117 	u32 aux2_output_mask;
118 	u32 early_output_mask;
119 	u32 alpha_en_mask;
120 	u32 alpha_mode_mask;
121 	u32 pre_div_val;
122 	u32 pre_div_mask;
123 	u32 post_div_val;
124 	u32 post_div_mask;
125 	u32 vco_val;
126 	u32 vco_mask;
127 };
128 
129 extern const struct clk_ops clk_alpha_pll_ops;
130 extern const struct clk_ops clk_alpha_pll_fixed_ops;
131 extern const struct clk_ops clk_alpha_pll_hwfsm_ops;
132 extern const struct clk_ops clk_alpha_pll_postdiv_ops;
133 extern const struct clk_ops clk_alpha_pll_huayra_ops;
134 extern const struct clk_ops clk_alpha_pll_postdiv_ro_ops;
135 
136 extern const struct clk_ops clk_alpha_pll_fabia_ops;
137 extern const struct clk_ops clk_alpha_pll_fixed_fabia_ops;
138 extern const struct clk_ops clk_alpha_pll_postdiv_fabia_ops;
139 
140 extern const struct clk_ops clk_alpha_pll_trion_ops;
141 extern const struct clk_ops clk_alpha_pll_fixed_trion_ops;
142 extern const struct clk_ops clk_alpha_pll_postdiv_trion_ops;
143 
144 extern const struct clk_ops clk_alpha_pll_lucid_ops;
145 #define clk_alpha_pll_fixed_lucid_ops clk_alpha_pll_fixed_trion_ops
146 extern const struct clk_ops clk_alpha_pll_postdiv_lucid_ops;
147 extern const struct clk_ops clk_alpha_pll_agera_ops;
148 
149 extern const struct clk_ops clk_alpha_pll_lucid_5lpe_ops;
150 extern const struct clk_ops clk_alpha_pll_fixed_lucid_5lpe_ops;
151 extern const struct clk_ops clk_alpha_pll_postdiv_lucid_5lpe_ops;
152 
153 extern const struct clk_ops clk_alpha_pll_zonda_ops;
154 #define clk_alpha_pll_postdiv_zonda_ops clk_alpha_pll_postdiv_fabia_ops
155 extern const struct clk_ops clk_alpha_pll_fixed_lucid_evo_ops;
156 extern const struct clk_ops clk_alpha_pll_postdiv_lucid_evo_ops;
157 
158 void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
159 			     const struct alpha_pll_config *config);
160 void clk_fabia_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
161 				const struct alpha_pll_config *config);
162 void clk_trion_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
163 			     const struct alpha_pll_config *config);
164 void clk_agera_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
165 				const struct alpha_pll_config *config);
166 #define clk_lucid_pll_configure(pll, regmap, config) \
167 	clk_trion_pll_configure(pll, regmap, config)
168 
169 void clk_zonda_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
170 			     const struct alpha_pll_config *config);
171 
172 
173 #endif
174