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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
e98ea774 LW |
2 | #ifndef PINCTRL_PINCTRL_NOMADIK_H |
3 | #define PINCTRL_PINCTRL_NOMADIK_H | |
4 | ||
e98ea774 LW |
5 | /* Package definitions */ |
6 | #define PINCTRL_NMK_STN8815 0 | |
7 | #define PINCTRL_NMK_DB8500 1 | |
45a1b531 | 8 | #define PINCTRL_NMK_DB8540 2 |
e98ea774 | 9 | |
8d993397 LW |
10 | /* Alternate functions: function C is set in hw by setting both A and B */ |
11 | #define NMK_GPIO_ALT_GPIO 0 | |
12 | #define NMK_GPIO_ALT_A 1 | |
13 | #define NMK_GPIO_ALT_B 2 | |
14 | #define NMK_GPIO_ALT_C (NMK_GPIO_ALT_A | NMK_GPIO_ALT_B) | |
15 | ||
16 | #define NMK_GPIO_ALT_CX_SHIFT 2 | |
17 | #define NMK_GPIO_ALT_C1 ((1<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) | |
18 | #define NMK_GPIO_ALT_C2 ((2<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) | |
19 | #define NMK_GPIO_ALT_C3 ((3<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) | |
20 | #define NMK_GPIO_ALT_C4 ((4<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) | |
21 | ||
c22df08c JNG |
22 | #define PRCM_GPIOCR_ALTCX(pin_num,\ |
23 | altc1_used, altc1_ri, altc1_cb,\ | |
24 | altc2_used, altc2_ri, altc2_cb,\ | |
25 | altc3_used, altc3_ri, altc3_cb,\ | |
26 | altc4_used, altc4_ri, altc4_cb)\ | |
27 | {\ | |
28 | .pin = pin_num,\ | |
29 | .altcx[PRCM_IDX_GPIOCR_ALTC1] = {\ | |
30 | .used = altc1_used,\ | |
31 | .reg_index = altc1_ri,\ | |
32 | .control_bit = altc1_cb\ | |
33 | },\ | |
34 | .altcx[PRCM_IDX_GPIOCR_ALTC2] = {\ | |
35 | .used = altc2_used,\ | |
36 | .reg_index = altc2_ri,\ | |
37 | .control_bit = altc2_cb\ | |
38 | },\ | |
39 | .altcx[PRCM_IDX_GPIOCR_ALTC3] = {\ | |
40 | .used = altc3_used,\ | |
41 | .reg_index = altc3_ri,\ | |
42 | .control_bit = altc3_cb\ | |
43 | },\ | |
44 | .altcx[PRCM_IDX_GPIOCR_ALTC4] = {\ | |
45 | .used = altc4_used,\ | |
46 | .reg_index = altc4_ri,\ | |
47 | .control_bit = altc4_cb\ | |
48 | },\ | |
49 | } | |
50 | ||
51 | /** | |
52 | * enum prcm_gpiocr_reg_index | |
53 | * Used to reference an PRCM GPIOCR register address. | |
54 | */ | |
55 | enum prcm_gpiocr_reg_index { | |
56 | PRCM_IDX_GPIOCR1, | |
57 | PRCM_IDX_GPIOCR2, | |
58 | PRCM_IDX_GPIOCR3 | |
59 | }; | |
60 | /** | |
61 | * enum prcm_gpiocr_altcx_index | |
62 | * Used to reference an Other alternate-C function. | |
63 | */ | |
64 | enum prcm_gpiocr_altcx_index { | |
65 | PRCM_IDX_GPIOCR_ALTC1, | |
66 | PRCM_IDX_GPIOCR_ALTC2, | |
67 | PRCM_IDX_GPIOCR_ALTC3, | |
68 | PRCM_IDX_GPIOCR_ALTC4, | |
69 | PRCM_IDX_GPIOCR_ALTC_MAX, | |
70 | }; | |
71 | ||
72 | /** | |
73 | * struct prcm_gpio_altcx - Other alternate-C function | |
74 | * @used: other alternate-C function availability | |
75 | * @reg_index: PRCM GPIOCR register index used to control the function | |
76 | * @control_bit: PRCM GPIOCR bit used to control the function | |
77 | */ | |
78 | struct prcm_gpiocr_altcx { | |
79 | bool used:1; | |
80 | u8 reg_index:2; | |
81 | u8 control_bit:5; | |
82 | } __packed; | |
83 | ||
84 | /** | |
85 | * struct prcm_gpio_altcx_pin_desc - Other alternate-C pin | |
86 | * @pin: The pin number | |
87 | * @altcx: array of other alternate-C[1-4] functions | |
88 | */ | |
89 | struct prcm_gpiocr_altcx_pin_desc { | |
90 | unsigned short pin; | |
91 | struct prcm_gpiocr_altcx altcx[PRCM_IDX_GPIOCR_ALTC_MAX]; | |
92 | }; | |
93 | ||
dbfe8ca2 LW |
94 | /** |
95 | * struct nmk_function - Nomadik pinctrl mux function | |
96 | * @name: The name of the function, exported to pinctrl core. | |
97 | * @groups: An array of pin groups that may select this function. | |
98 | * @ngroups: The number of entries in @groups. | |
99 | */ | |
100 | struct nmk_function { | |
101 | const char *name; | |
102 | const char * const *groups; | |
103 | unsigned ngroups; | |
104 | }; | |
105 | ||
e98ea774 LW |
106 | /** |
107 | * struct nmk_pingroup - describes a Nomadik pin group | |
108 | * @name: the name of this specific pin group | |
109 | * @pins: an array of discrete physical pins used in this group, taken | |
110 | * from the driver-local pin enumeration space | |
111 | * @num_pins: the number of pins in this group array, i.e. the number of | |
112 | * elements in .pins so we can iterate over that array | |
113 | * @altsetting: the altsetting to apply to all pins in this group to | |
114 | * configure them to be used by a function | |
115 | */ | |
116 | struct nmk_pingroup { | |
117 | const char *name; | |
118 | const unsigned int *pins; | |
119 | const unsigned npins; | |
dbfe8ca2 | 120 | int altsetting; |
e98ea774 LW |
121 | }; |
122 | ||
123 | /** | |
124 | * struct nmk_pinctrl_soc_data - Nomadik pin controller per-SoC configuration | |
e98ea774 LW |
125 | * @pins: An array describing all pins the pin controller affects. |
126 | * All pins which are also GPIOs must be listed first within the | |
127 | * array, and be numbered identically to the GPIO controller's | |
128 | * numbering. | |
dbfe8ca2 LW |
129 | * @npins: The number of entries in @pins. |
130 | * @functions: The functions supported on this SoC. | |
131 | * @nfunction: The number of entries in @functions. | |
e98ea774 LW |
132 | * @groups: An array describing all pin groups the pin SoC supports. |
133 | * @ngroups: The number of entries in @groups. | |
c22df08c JNG |
134 | * @altcx_pins: The pins that support Other alternate-C function on this SoC |
135 | * @npins_altcx: The number of Other alternate-C pins | |
136 | * @prcm_gpiocr_registers: The array of PRCM GPIOCR registers on this SoC | |
e98ea774 LW |
137 | */ |
138 | struct nmk_pinctrl_soc_data { | |
e98ea774 LW |
139 | const struct pinctrl_pin_desc *pins; |
140 | unsigned npins; | |
dbfe8ca2 LW |
141 | const struct nmk_function *functions; |
142 | unsigned nfunctions; | |
e98ea774 LW |
143 | const struct nmk_pingroup *groups; |
144 | unsigned ngroups; | |
c22df08c JNG |
145 | const struct prcm_gpiocr_altcx_pin_desc *altcx_pins; |
146 | unsigned npins_altcx; | |
147 | const u16 *prcm_gpiocr_registers; | |
e98ea774 LW |
148 | }; |
149 | ||
f79c5ed9 LW |
150 | #ifdef CONFIG_PINCTRL_STN8815 |
151 | ||
152 | void nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc); | |
153 | ||
154 | #else | |
155 | ||
156 | static inline void | |
157 | nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc) | |
158 | { | |
159 | } | |
160 | ||
161 | #endif | |
162 | ||
e98ea774 LW |
163 | #ifdef CONFIG_PINCTRL_DB8500 |
164 | ||
165 | void nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc); | |
166 | ||
167 | #else | |
168 | ||
169 | static inline void | |
170 | nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc) | |
171 | { | |
172 | } | |
173 | ||
174 | #endif | |
175 | ||
45a1b531 PC |
176 | #ifdef CONFIG_PINCTRL_DB8540 |
177 | ||
178 | void nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc); | |
179 | ||
180 | #else | |
181 | ||
182 | static inline void | |
183 | nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc) | |
184 | { | |
185 | } | |
186 | ||
187 | #endif | |
188 | ||
e98ea774 | 189 | #endif /* PINCTRL_PINCTRL_NOMADIK_H */ |