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e98ea774 LW |
1 | #ifndef PINCTRL_PINCTRL_NOMADIK_H |
2 | #define PINCTRL_PINCTRL_NOMADIK_H | |
3 | ||
e98ea774 LW |
4 | /* Package definitions */ |
5 | #define PINCTRL_NMK_STN8815 0 | |
6 | #define PINCTRL_NMK_DB8500 1 | |
45a1b531 | 7 | #define PINCTRL_NMK_DB8540 2 |
e98ea774 | 8 | |
8d993397 LW |
9 | /* Alternate functions: function C is set in hw by setting both A and B */ |
10 | #define NMK_GPIO_ALT_GPIO 0 | |
11 | #define NMK_GPIO_ALT_A 1 | |
12 | #define NMK_GPIO_ALT_B 2 | |
13 | #define NMK_GPIO_ALT_C (NMK_GPIO_ALT_A | NMK_GPIO_ALT_B) | |
14 | ||
15 | #define NMK_GPIO_ALT_CX_SHIFT 2 | |
16 | #define NMK_GPIO_ALT_C1 ((1<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) | |
17 | #define NMK_GPIO_ALT_C2 ((2<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) | |
18 | #define NMK_GPIO_ALT_C3 ((3<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) | |
19 | #define NMK_GPIO_ALT_C4 ((4<<NMK_GPIO_ALT_CX_SHIFT) | NMK_GPIO_ALT_C) | |
20 | ||
c22df08c JNG |
21 | #define PRCM_GPIOCR_ALTCX(pin_num,\ |
22 | altc1_used, altc1_ri, altc1_cb,\ | |
23 | altc2_used, altc2_ri, altc2_cb,\ | |
24 | altc3_used, altc3_ri, altc3_cb,\ | |
25 | altc4_used, altc4_ri, altc4_cb)\ | |
26 | {\ | |
27 | .pin = pin_num,\ | |
28 | .altcx[PRCM_IDX_GPIOCR_ALTC1] = {\ | |
29 | .used = altc1_used,\ | |
30 | .reg_index = altc1_ri,\ | |
31 | .control_bit = altc1_cb\ | |
32 | },\ | |
33 | .altcx[PRCM_IDX_GPIOCR_ALTC2] = {\ | |
34 | .used = altc2_used,\ | |
35 | .reg_index = altc2_ri,\ | |
36 | .control_bit = altc2_cb\ | |
37 | },\ | |
38 | .altcx[PRCM_IDX_GPIOCR_ALTC3] = {\ | |
39 | .used = altc3_used,\ | |
40 | .reg_index = altc3_ri,\ | |
41 | .control_bit = altc3_cb\ | |
42 | },\ | |
43 | .altcx[PRCM_IDX_GPIOCR_ALTC4] = {\ | |
44 | .used = altc4_used,\ | |
45 | .reg_index = altc4_ri,\ | |
46 | .control_bit = altc4_cb\ | |
47 | },\ | |
48 | } | |
49 | ||
50 | /** | |
51 | * enum prcm_gpiocr_reg_index | |
52 | * Used to reference an PRCM GPIOCR register address. | |
53 | */ | |
54 | enum prcm_gpiocr_reg_index { | |
55 | PRCM_IDX_GPIOCR1, | |
56 | PRCM_IDX_GPIOCR2, | |
57 | PRCM_IDX_GPIOCR3 | |
58 | }; | |
59 | /** | |
60 | * enum prcm_gpiocr_altcx_index | |
61 | * Used to reference an Other alternate-C function. | |
62 | */ | |
63 | enum prcm_gpiocr_altcx_index { | |
64 | PRCM_IDX_GPIOCR_ALTC1, | |
65 | PRCM_IDX_GPIOCR_ALTC2, | |
66 | PRCM_IDX_GPIOCR_ALTC3, | |
67 | PRCM_IDX_GPIOCR_ALTC4, | |
68 | PRCM_IDX_GPIOCR_ALTC_MAX, | |
69 | }; | |
70 | ||
71 | /** | |
72 | * struct prcm_gpio_altcx - Other alternate-C function | |
73 | * @used: other alternate-C function availability | |
74 | * @reg_index: PRCM GPIOCR register index used to control the function | |
75 | * @control_bit: PRCM GPIOCR bit used to control the function | |
76 | */ | |
77 | struct prcm_gpiocr_altcx { | |
78 | bool used:1; | |
79 | u8 reg_index:2; | |
80 | u8 control_bit:5; | |
81 | } __packed; | |
82 | ||
83 | /** | |
84 | * struct prcm_gpio_altcx_pin_desc - Other alternate-C pin | |
85 | * @pin: The pin number | |
86 | * @altcx: array of other alternate-C[1-4] functions | |
87 | */ | |
88 | struct prcm_gpiocr_altcx_pin_desc { | |
89 | unsigned short pin; | |
90 | struct prcm_gpiocr_altcx altcx[PRCM_IDX_GPIOCR_ALTC_MAX]; | |
91 | }; | |
92 | ||
dbfe8ca2 LW |
93 | /** |
94 | * struct nmk_function - Nomadik pinctrl mux function | |
95 | * @name: The name of the function, exported to pinctrl core. | |
96 | * @groups: An array of pin groups that may select this function. | |
97 | * @ngroups: The number of entries in @groups. | |
98 | */ | |
99 | struct nmk_function { | |
100 | const char *name; | |
101 | const char * const *groups; | |
102 | unsigned ngroups; | |
103 | }; | |
104 | ||
e98ea774 LW |
105 | /** |
106 | * struct nmk_pingroup - describes a Nomadik pin group | |
107 | * @name: the name of this specific pin group | |
108 | * @pins: an array of discrete physical pins used in this group, taken | |
109 | * from the driver-local pin enumeration space | |
110 | * @num_pins: the number of pins in this group array, i.e. the number of | |
111 | * elements in .pins so we can iterate over that array | |
112 | * @altsetting: the altsetting to apply to all pins in this group to | |
113 | * configure them to be used by a function | |
114 | */ | |
115 | struct nmk_pingroup { | |
116 | const char *name; | |
117 | const unsigned int *pins; | |
118 | const unsigned npins; | |
dbfe8ca2 | 119 | int altsetting; |
e98ea774 LW |
120 | }; |
121 | ||
122 | /** | |
123 | * struct nmk_pinctrl_soc_data - Nomadik pin controller per-SoC configuration | |
124 | * @gpio_ranges: An array of GPIO ranges for this SoC | |
125 | * @gpio_num_ranges: The number of GPIO ranges for this SoC | |
126 | * @pins: An array describing all pins the pin controller affects. | |
127 | * All pins which are also GPIOs must be listed first within the | |
128 | * array, and be numbered identically to the GPIO controller's | |
129 | * numbering. | |
dbfe8ca2 LW |
130 | * @npins: The number of entries in @pins. |
131 | * @functions: The functions supported on this SoC. | |
132 | * @nfunction: The number of entries in @functions. | |
e98ea774 LW |
133 | * @groups: An array describing all pin groups the pin SoC supports. |
134 | * @ngroups: The number of entries in @groups. | |
c22df08c JNG |
135 | * @altcx_pins: The pins that support Other alternate-C function on this SoC |
136 | * @npins_altcx: The number of Other alternate-C pins | |
137 | * @prcm_gpiocr_registers: The array of PRCM GPIOCR registers on this SoC | |
e98ea774 LW |
138 | */ |
139 | struct nmk_pinctrl_soc_data { | |
140 | struct pinctrl_gpio_range *gpio_ranges; | |
141 | unsigned gpio_num_ranges; | |
142 | const struct pinctrl_pin_desc *pins; | |
143 | unsigned npins; | |
dbfe8ca2 LW |
144 | const struct nmk_function *functions; |
145 | unsigned nfunctions; | |
e98ea774 LW |
146 | const struct nmk_pingroup *groups; |
147 | unsigned ngroups; | |
c22df08c JNG |
148 | const struct prcm_gpiocr_altcx_pin_desc *altcx_pins; |
149 | unsigned npins_altcx; | |
150 | const u16 *prcm_gpiocr_registers; | |
e98ea774 LW |
151 | }; |
152 | ||
f79c5ed9 LW |
153 | #ifdef CONFIG_PINCTRL_STN8815 |
154 | ||
155 | void nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc); | |
156 | ||
157 | #else | |
158 | ||
159 | static inline void | |
160 | nmk_pinctrl_stn8815_init(const struct nmk_pinctrl_soc_data **soc) | |
161 | { | |
162 | } | |
163 | ||
164 | #endif | |
165 | ||
e98ea774 LW |
166 | #ifdef CONFIG_PINCTRL_DB8500 |
167 | ||
168 | void nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc); | |
169 | ||
170 | #else | |
171 | ||
172 | static inline void | |
173 | nmk_pinctrl_db8500_init(const struct nmk_pinctrl_soc_data **soc) | |
174 | { | |
175 | } | |
176 | ||
177 | #endif | |
178 | ||
45a1b531 PC |
179 | #ifdef CONFIG_PINCTRL_DB8540 |
180 | ||
181 | void nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc); | |
182 | ||
183 | #else | |
184 | ||
185 | static inline void | |
186 | nmk_pinctrl_db8540_init(const struct nmk_pinctrl_soc_data **soc) | |
187 | { | |
188 | } | |
189 | ||
190 | #endif | |
191 | ||
e98ea774 | 192 | #endif /* PINCTRL_PINCTRL_NOMADIK_H */ |