1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // |
3 | // VF610 pinctrl driver based on imx pinmux and pinconf core |
4 | // |
5 | // Copyright 2013 Freescale Semiconductor, Inc. |
6 | |
7 | #include <linux/err.h> |
8 | #include <linux/init.h> |
9 | #include <linux/io.h> |
10 | #include <linux/mod_devicetable.h> |
11 | #include <linux/platform_device.h> |
12 | #include <linux/pinctrl/pinctrl.h> |
13 | |
14 | #include "pinctrl-imx.h" |
15 | |
16 | enum vf610_pads { |
17 | VF610_PAD_PTA6 = 0, |
18 | VF610_PAD_PTA8 = 1, |
19 | VF610_PAD_PTA9 = 2, |
20 | VF610_PAD_PTA10 = 3, |
21 | VF610_PAD_PTA11 = 4, |
22 | VF610_PAD_PTA12 = 5, |
23 | VF610_PAD_PTA16 = 6, |
24 | VF610_PAD_PTA17 = 7, |
25 | VF610_PAD_PTA18 = 8, |
26 | VF610_PAD_PTA19 = 9, |
27 | VF610_PAD_PTA20 = 10, |
28 | VF610_PAD_PTA21 = 11, |
29 | VF610_PAD_PTA22 = 12, |
30 | VF610_PAD_PTA23 = 13, |
31 | VF610_PAD_PTA24 = 14, |
32 | VF610_PAD_PTA25 = 15, |
33 | VF610_PAD_PTA26 = 16, |
34 | VF610_PAD_PTA27 = 17, |
35 | VF610_PAD_PTA28 = 18, |
36 | VF610_PAD_PTA29 = 19, |
37 | VF610_PAD_PTA30 = 20, |
38 | VF610_PAD_PTA31 = 21, |
39 | VF610_PAD_PTB0 = 22, |
40 | VF610_PAD_PTB1 = 23, |
41 | VF610_PAD_PTB2 = 24, |
42 | VF610_PAD_PTB3 = 25, |
43 | VF610_PAD_PTB4 = 26, |
44 | VF610_PAD_PTB5 = 27, |
45 | VF610_PAD_PTB6 = 28, |
46 | VF610_PAD_PTB7 = 29, |
47 | VF610_PAD_PTB8 = 30, |
48 | VF610_PAD_PTB9 = 31, |
49 | VF610_PAD_PTB10 = 32, |
50 | VF610_PAD_PTB11 = 33, |
51 | VF610_PAD_PTB12 = 34, |
52 | VF610_PAD_PTB13 = 35, |
53 | VF610_PAD_PTB14 = 36, |
54 | VF610_PAD_PTB15 = 37, |
55 | VF610_PAD_PTB16 = 38, |
56 | VF610_PAD_PTB17 = 39, |
57 | VF610_PAD_PTB18 = 40, |
58 | VF610_PAD_PTB19 = 41, |
59 | VF610_PAD_PTB20 = 42, |
60 | VF610_PAD_PTB21 = 43, |
61 | VF610_PAD_PTB22 = 44, |
62 | VF610_PAD_PTC0 = 45, |
63 | VF610_PAD_PTC1 = 46, |
64 | VF610_PAD_PTC2 = 47, |
65 | VF610_PAD_PTC3 = 48, |
66 | VF610_PAD_PTC4 = 49, |
67 | VF610_PAD_PTC5 = 50, |
68 | VF610_PAD_PTC6 = 51, |
69 | VF610_PAD_PTC7 = 52, |
70 | VF610_PAD_PTC8 = 53, |
71 | VF610_PAD_PTC9 = 54, |
72 | VF610_PAD_PTC10 = 55, |
73 | VF610_PAD_PTC11 = 56, |
74 | VF610_PAD_PTC12 = 57, |
75 | VF610_PAD_PTC13 = 58, |
76 | VF610_PAD_PTC14 = 59, |
77 | VF610_PAD_PTC15 = 60, |
78 | VF610_PAD_PTC16 = 61, |
79 | VF610_PAD_PTC17 = 62, |
80 | VF610_PAD_PTD31 = 63, |
81 | VF610_PAD_PTD30 = 64, |
82 | VF610_PAD_PTD29 = 65, |
83 | VF610_PAD_PTD28 = 66, |
84 | VF610_PAD_PTD27 = 67, |
85 | VF610_PAD_PTD26 = 68, |
86 | VF610_PAD_PTD25 = 69, |
87 | VF610_PAD_PTD24 = 70, |
88 | VF610_PAD_PTD23 = 71, |
89 | VF610_PAD_PTD22 = 72, |
90 | VF610_PAD_PTD21 = 73, |
91 | VF610_PAD_PTD20 = 74, |
92 | VF610_PAD_PTD19 = 75, |
93 | VF610_PAD_PTD18 = 76, |
94 | VF610_PAD_PTD17 = 77, |
95 | VF610_PAD_PTD16 = 78, |
96 | VF610_PAD_PTD0 = 79, |
97 | VF610_PAD_PTD1 = 80, |
98 | VF610_PAD_PTD2 = 81, |
99 | VF610_PAD_PTD3 = 82, |
100 | VF610_PAD_PTD4 = 83, |
101 | VF610_PAD_PTD5 = 84, |
102 | VF610_PAD_PTD6 = 85, |
103 | VF610_PAD_PTD7 = 86, |
104 | VF610_PAD_PTD8 = 87, |
105 | VF610_PAD_PTD9 = 88, |
106 | VF610_PAD_PTD10 = 89, |
107 | VF610_PAD_PTD11 = 90, |
108 | VF610_PAD_PTD12 = 91, |
109 | VF610_PAD_PTD13 = 92, |
110 | VF610_PAD_PTB23 = 93, |
111 | VF610_PAD_PTB24 = 94, |
112 | VF610_PAD_PTB25 = 95, |
113 | VF610_PAD_PTB26 = 96, |
114 | VF610_PAD_PTB27 = 97, |
115 | VF610_PAD_PTB28 = 98, |
116 | VF610_PAD_PTC26 = 99, |
117 | VF610_PAD_PTC27 = 100, |
118 | VF610_PAD_PTC28 = 101, |
119 | VF610_PAD_PTC29 = 102, |
120 | VF610_PAD_PTC30 = 103, |
121 | VF610_PAD_PTC31 = 104, |
122 | VF610_PAD_PTE0 = 105, |
123 | VF610_PAD_PTE1 = 106, |
124 | VF610_PAD_PTE2 = 107, |
125 | VF610_PAD_PTE3 = 108, |
126 | VF610_PAD_PTE4 = 109, |
127 | VF610_PAD_PTE5 = 110, |
128 | VF610_PAD_PTE6 = 111, |
129 | VF610_PAD_PTE7 = 112, |
130 | VF610_PAD_PTE8 = 113, |
131 | VF610_PAD_PTE9 = 114, |
132 | VF610_PAD_PTE10 = 115, |
133 | VF610_PAD_PTE11 = 116, |
134 | VF610_PAD_PTE12 = 117, |
135 | VF610_PAD_PTE13 = 118, |
136 | VF610_PAD_PTE14 = 119, |
137 | VF610_PAD_PTE15 = 120, |
138 | VF610_PAD_PTE16 = 121, |
139 | VF610_PAD_PTE17 = 122, |
140 | VF610_PAD_PTE18 = 123, |
141 | VF610_PAD_PTE19 = 124, |
142 | VF610_PAD_PTE20 = 125, |
143 | VF610_PAD_PTE21 = 126, |
144 | VF610_PAD_PTE22 = 127, |
145 | VF610_PAD_PTE23 = 128, |
146 | VF610_PAD_PTE24 = 129, |
147 | VF610_PAD_PTE25 = 130, |
148 | VF610_PAD_PTE26 = 131, |
149 | VF610_PAD_PTE27 = 132, |
150 | VF610_PAD_PTE28 = 133, |
151 | VF610_PAD_PTA7 = 134, |
152 | }; |
153 | |
154 | /* Pad names for the pinmux subsystem */ |
155 | static const struct pinctrl_pin_desc vf610_pinctrl_pads[] = { |
156 | IMX_PINCTRL_PIN(VF610_PAD_PTA6), |
157 | IMX_PINCTRL_PIN(VF610_PAD_PTA8), |
158 | IMX_PINCTRL_PIN(VF610_PAD_PTA9), |
159 | IMX_PINCTRL_PIN(VF610_PAD_PTA10), |
160 | IMX_PINCTRL_PIN(VF610_PAD_PTA11), |
161 | IMX_PINCTRL_PIN(VF610_PAD_PTA12), |
162 | IMX_PINCTRL_PIN(VF610_PAD_PTA16), |
163 | IMX_PINCTRL_PIN(VF610_PAD_PTA17), |
164 | IMX_PINCTRL_PIN(VF610_PAD_PTA18), |
165 | IMX_PINCTRL_PIN(VF610_PAD_PTA19), |
166 | IMX_PINCTRL_PIN(VF610_PAD_PTA20), |
167 | IMX_PINCTRL_PIN(VF610_PAD_PTA21), |
168 | IMX_PINCTRL_PIN(VF610_PAD_PTA22), |
169 | IMX_PINCTRL_PIN(VF610_PAD_PTA23), |
170 | IMX_PINCTRL_PIN(VF610_PAD_PTA24), |
171 | IMX_PINCTRL_PIN(VF610_PAD_PTA25), |
172 | IMX_PINCTRL_PIN(VF610_PAD_PTA26), |
173 | IMX_PINCTRL_PIN(VF610_PAD_PTA27), |
174 | IMX_PINCTRL_PIN(VF610_PAD_PTA28), |
175 | IMX_PINCTRL_PIN(VF610_PAD_PTA29), |
176 | IMX_PINCTRL_PIN(VF610_PAD_PTA30), |
177 | IMX_PINCTRL_PIN(VF610_PAD_PTA31), |
178 | IMX_PINCTRL_PIN(VF610_PAD_PTB0), |
179 | IMX_PINCTRL_PIN(VF610_PAD_PTB1), |
180 | IMX_PINCTRL_PIN(VF610_PAD_PTB2), |
181 | IMX_PINCTRL_PIN(VF610_PAD_PTB3), |
182 | IMX_PINCTRL_PIN(VF610_PAD_PTB4), |
183 | IMX_PINCTRL_PIN(VF610_PAD_PTB5), |
184 | IMX_PINCTRL_PIN(VF610_PAD_PTB6), |
185 | IMX_PINCTRL_PIN(VF610_PAD_PTB7), |
186 | IMX_PINCTRL_PIN(VF610_PAD_PTB8), |
187 | IMX_PINCTRL_PIN(VF610_PAD_PTB9), |
188 | IMX_PINCTRL_PIN(VF610_PAD_PTB10), |
189 | IMX_PINCTRL_PIN(VF610_PAD_PTB11), |
190 | IMX_PINCTRL_PIN(VF610_PAD_PTB12), |
191 | IMX_PINCTRL_PIN(VF610_PAD_PTB13), |
192 | IMX_PINCTRL_PIN(VF610_PAD_PTB14), |
193 | IMX_PINCTRL_PIN(VF610_PAD_PTB15), |
194 | IMX_PINCTRL_PIN(VF610_PAD_PTB16), |
195 | IMX_PINCTRL_PIN(VF610_PAD_PTB17), |
196 | IMX_PINCTRL_PIN(VF610_PAD_PTB18), |
197 | IMX_PINCTRL_PIN(VF610_PAD_PTB19), |
198 | IMX_PINCTRL_PIN(VF610_PAD_PTB20), |
199 | IMX_PINCTRL_PIN(VF610_PAD_PTB21), |
200 | IMX_PINCTRL_PIN(VF610_PAD_PTB22), |
201 | IMX_PINCTRL_PIN(VF610_PAD_PTC0), |
202 | IMX_PINCTRL_PIN(VF610_PAD_PTC1), |
203 | IMX_PINCTRL_PIN(VF610_PAD_PTC2), |
204 | IMX_PINCTRL_PIN(VF610_PAD_PTC3), |
205 | IMX_PINCTRL_PIN(VF610_PAD_PTC4), |
206 | IMX_PINCTRL_PIN(VF610_PAD_PTC5), |
207 | IMX_PINCTRL_PIN(VF610_PAD_PTC6), |
208 | IMX_PINCTRL_PIN(VF610_PAD_PTC7), |
209 | IMX_PINCTRL_PIN(VF610_PAD_PTC8), |
210 | IMX_PINCTRL_PIN(VF610_PAD_PTC9), |
211 | IMX_PINCTRL_PIN(VF610_PAD_PTC10), |
212 | IMX_PINCTRL_PIN(VF610_PAD_PTC11), |
213 | IMX_PINCTRL_PIN(VF610_PAD_PTC12), |
214 | IMX_PINCTRL_PIN(VF610_PAD_PTC13), |
215 | IMX_PINCTRL_PIN(VF610_PAD_PTC14), |
216 | IMX_PINCTRL_PIN(VF610_PAD_PTC15), |
217 | IMX_PINCTRL_PIN(VF610_PAD_PTC16), |
218 | IMX_PINCTRL_PIN(VF610_PAD_PTC17), |
219 | IMX_PINCTRL_PIN(VF610_PAD_PTD31), |
220 | IMX_PINCTRL_PIN(VF610_PAD_PTD30), |
221 | IMX_PINCTRL_PIN(VF610_PAD_PTD29), |
222 | IMX_PINCTRL_PIN(VF610_PAD_PTD28), |
223 | IMX_PINCTRL_PIN(VF610_PAD_PTD27), |
224 | IMX_PINCTRL_PIN(VF610_PAD_PTD26), |
225 | IMX_PINCTRL_PIN(VF610_PAD_PTD25), |
226 | IMX_PINCTRL_PIN(VF610_PAD_PTD24), |
227 | IMX_PINCTRL_PIN(VF610_PAD_PTD23), |
228 | IMX_PINCTRL_PIN(VF610_PAD_PTD22), |
229 | IMX_PINCTRL_PIN(VF610_PAD_PTD21), |
230 | IMX_PINCTRL_PIN(VF610_PAD_PTD20), |
231 | IMX_PINCTRL_PIN(VF610_PAD_PTD19), |
232 | IMX_PINCTRL_PIN(VF610_PAD_PTD18), |
233 | IMX_PINCTRL_PIN(VF610_PAD_PTD17), |
234 | IMX_PINCTRL_PIN(VF610_PAD_PTD16), |
235 | IMX_PINCTRL_PIN(VF610_PAD_PTD0), |
236 | IMX_PINCTRL_PIN(VF610_PAD_PTD1), |
237 | IMX_PINCTRL_PIN(VF610_PAD_PTD2), |
238 | IMX_PINCTRL_PIN(VF610_PAD_PTD3), |
239 | IMX_PINCTRL_PIN(VF610_PAD_PTD4), |
240 | IMX_PINCTRL_PIN(VF610_PAD_PTD5), |
241 | IMX_PINCTRL_PIN(VF610_PAD_PTD6), |
242 | IMX_PINCTRL_PIN(VF610_PAD_PTD7), |
243 | IMX_PINCTRL_PIN(VF610_PAD_PTD8), |
244 | IMX_PINCTRL_PIN(VF610_PAD_PTD9), |
245 | IMX_PINCTRL_PIN(VF610_PAD_PTD10), |
246 | IMX_PINCTRL_PIN(VF610_PAD_PTD11), |
247 | IMX_PINCTRL_PIN(VF610_PAD_PTD12), |
248 | IMX_PINCTRL_PIN(VF610_PAD_PTD13), |
249 | IMX_PINCTRL_PIN(VF610_PAD_PTB23), |
250 | IMX_PINCTRL_PIN(VF610_PAD_PTB24), |
251 | IMX_PINCTRL_PIN(VF610_PAD_PTB25), |
252 | IMX_PINCTRL_PIN(VF610_PAD_PTB26), |
253 | IMX_PINCTRL_PIN(VF610_PAD_PTB27), |
254 | IMX_PINCTRL_PIN(VF610_PAD_PTB28), |
255 | IMX_PINCTRL_PIN(VF610_PAD_PTC26), |
256 | IMX_PINCTRL_PIN(VF610_PAD_PTC27), |
257 | IMX_PINCTRL_PIN(VF610_PAD_PTC28), |
258 | IMX_PINCTRL_PIN(VF610_PAD_PTC29), |
259 | IMX_PINCTRL_PIN(VF610_PAD_PTC30), |
260 | IMX_PINCTRL_PIN(VF610_PAD_PTC31), |
261 | IMX_PINCTRL_PIN(VF610_PAD_PTE0), |
262 | IMX_PINCTRL_PIN(VF610_PAD_PTE1), |
263 | IMX_PINCTRL_PIN(VF610_PAD_PTE2), |
264 | IMX_PINCTRL_PIN(VF610_PAD_PTE3), |
265 | IMX_PINCTRL_PIN(VF610_PAD_PTE4), |
266 | IMX_PINCTRL_PIN(VF610_PAD_PTE5), |
267 | IMX_PINCTRL_PIN(VF610_PAD_PTE6), |
268 | IMX_PINCTRL_PIN(VF610_PAD_PTE7), |
269 | IMX_PINCTRL_PIN(VF610_PAD_PTE8), |
270 | IMX_PINCTRL_PIN(VF610_PAD_PTE9), |
271 | IMX_PINCTRL_PIN(VF610_PAD_PTE10), |
272 | IMX_PINCTRL_PIN(VF610_PAD_PTE11), |
273 | IMX_PINCTRL_PIN(VF610_PAD_PTE12), |
274 | IMX_PINCTRL_PIN(VF610_PAD_PTE13), |
275 | IMX_PINCTRL_PIN(VF610_PAD_PTE14), |
276 | IMX_PINCTRL_PIN(VF610_PAD_PTE15), |
277 | IMX_PINCTRL_PIN(VF610_PAD_PTE16), |
278 | IMX_PINCTRL_PIN(VF610_PAD_PTE17), |
279 | IMX_PINCTRL_PIN(VF610_PAD_PTE18), |
280 | IMX_PINCTRL_PIN(VF610_PAD_PTE19), |
281 | IMX_PINCTRL_PIN(VF610_PAD_PTE20), |
282 | IMX_PINCTRL_PIN(VF610_PAD_PTE21), |
283 | IMX_PINCTRL_PIN(VF610_PAD_PTE22), |
284 | IMX_PINCTRL_PIN(VF610_PAD_PTE23), |
285 | IMX_PINCTRL_PIN(VF610_PAD_PTE24), |
286 | IMX_PINCTRL_PIN(VF610_PAD_PTE25), |
287 | IMX_PINCTRL_PIN(VF610_PAD_PTE26), |
288 | IMX_PINCTRL_PIN(VF610_PAD_PTE27), |
289 | IMX_PINCTRL_PIN(VF610_PAD_PTE28), |
290 | IMX_PINCTRL_PIN(VF610_PAD_PTA7), |
291 | }; |
292 | |
293 | static int vf610_pmx_gpio_set_direction(struct pinctrl_dev *pctldev, |
294 | struct pinctrl_gpio_range *range, |
295 | unsigned offset, bool input) |
296 | { |
297 | struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev); |
298 | const struct imx_pin_reg *pin_reg; |
299 | u32 reg; |
300 | |
301 | pin_reg = &ipctl->pin_regs[offset]; |
302 | if (pin_reg->mux_reg == -1) |
303 | return -EINVAL; |
304 | |
305 | /* IBE always enabled allows us to read the value "on the wire" */ |
306 | reg = readl(addr: ipctl->base + pin_reg->mux_reg); |
307 | if (input) |
308 | reg &= ~0x2; |
309 | else |
310 | reg |= 0x2; |
311 | writel(val: reg, addr: ipctl->base + pin_reg->mux_reg); |
312 | |
313 | return 0; |
314 | } |
315 | |
316 | static const struct imx_pinctrl_soc_info vf610_pinctrl_info = { |
317 | .pins = vf610_pinctrl_pads, |
318 | .npins = ARRAY_SIZE(vf610_pinctrl_pads), |
319 | .flags = SHARE_MUX_CONF_REG | ZERO_OFFSET_VALID, |
320 | .gpio_set_direction = vf610_pmx_gpio_set_direction, |
321 | .mux_mask = 0x700000, |
322 | .mux_shift = 20, |
323 | }; |
324 | |
325 | static const struct of_device_id vf610_pinctrl_of_match[] = { |
326 | { .compatible = "fsl,vf610-iomuxc" , }, |
327 | { /* sentinel */ } |
328 | }; |
329 | |
330 | static int vf610_pinctrl_probe(struct platform_device *pdev) |
331 | { |
332 | return imx_pinctrl_probe(pdev, info: &vf610_pinctrl_info); |
333 | } |
334 | |
335 | static struct platform_driver vf610_pinctrl_driver = { |
336 | .driver = { |
337 | .name = "vf610-pinctrl" , |
338 | .of_match_table = vf610_pinctrl_of_match, |
339 | .suppress_bind_attrs = true, |
340 | }, |
341 | .probe = vf610_pinctrl_probe, |
342 | }; |
343 | |
344 | static int __init vf610_pinctrl_init(void) |
345 | { |
346 | return platform_driver_register(&vf610_pinctrl_driver); |
347 | } |
348 | arch_initcall(vf610_pinctrl_init); |
349 | |