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cefc03e5 AB |
1 | /* |
2 | * Pistachio SoC pinctrl driver | |
3 | * | |
4 | * Copyright (C) 2014 Imagination Technologies Ltd. | |
5 | * Copyright (C) 2014 Google, Inc. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms and conditions of the GNU General Public License, | |
9 | * version 2, as published by the Free Software Foundation. | |
10 | */ | |
11 | ||
cefc03e5 AB |
12 | #include <linux/gpio/driver.h> |
13 | #include <linux/interrupt.h> | |
14 | #include <linux/io.h> | |
15 | #include <linux/irq.h> | |
16 | #include <linux/of.h> | |
17 | #include <linux/of_irq.h> | |
18 | #include <linux/pinctrl/pinconf.h> | |
19 | #include <linux/pinctrl/pinconf-generic.h> | |
20 | #include <linux/pinctrl/pinctrl.h> | |
21 | #include <linux/pinctrl/pinmux.h> | |
22 | #include <linux/platform_device.h> | |
23 | #include <linux/slab.h> | |
24 | #include <linux/spinlock.h> | |
25 | ||
26 | #include "pinctrl-utils.h" | |
27 | ||
28 | #define PADS_SCHMITT_EN0 0x000 | |
29 | #define PADS_SCHMITT_EN_REG(pin) (PADS_SCHMITT_EN0 + 0x4 * ((pin) / 32)) | |
30 | #define PADS_SCHMITT_EN_BIT(pin) BIT((pin) % 32) | |
31 | ||
32 | #define PADS_PU_PD0 0x040 | |
33 | #define PADS_PU_PD_REG(pin) (PADS_PU_PD0 + 0x4 * ((pin) / 16)) | |
34 | #define PADS_PU_PD_SHIFT(pin) (2 * ((pin) % 16)) | |
35 | #define PADS_PU_PD_MASK 0x3 | |
36 | #define PADS_PU_PD_HIGHZ 0x0 | |
37 | #define PADS_PU_PD_UP 0x1 | |
38 | #define PADS_PU_PD_DOWN 0x2 | |
39 | #define PADS_PU_PD_BUS 0x3 | |
40 | ||
41 | #define PADS_FUNCTION_SELECT0 0x0c0 | |
42 | #define PADS_FUNCTION_SELECT1 0x0c4 | |
43 | #define PADS_FUNCTION_SELECT2 0x0c8 | |
44 | #define PADS_SCENARIO_SELECT 0x0f8 | |
45 | ||
46 | #define PADS_SLEW_RATE0 0x100 | |
47 | #define PADS_SLEW_RATE_REG(pin) (PADS_SLEW_RATE0 + 0x4 * ((pin) / 32)) | |
48 | #define PADS_SLEW_RATE_BIT(pin) BIT((pin) % 32) | |
49 | ||
50 | #define PADS_DRIVE_STRENGTH0 0x120 | |
51 | #define PADS_DRIVE_STRENGTH_REG(pin) \ | |
52 | (PADS_DRIVE_STRENGTH0 + 0x4 * ((pin) / 16)) | |
53 | #define PADS_DRIVE_STRENGTH_SHIFT(pin) (2 * ((pin) % 16)) | |
54 | #define PADS_DRIVE_STRENGTH_MASK 0x3 | |
55 | #define PADS_DRIVE_STRENGTH_2MA 0x0 | |
56 | #define PADS_DRIVE_STRENGTH_4MA 0x1 | |
57 | #define PADS_DRIVE_STRENGTH_8MA 0x2 | |
58 | #define PADS_DRIVE_STRENGTH_12MA 0x3 | |
59 | ||
60 | #define GPIO_BANK_BASE(bank) (0x200 + 0x24 * (bank)) | |
61 | ||
62 | #define GPIO_BIT_EN 0x00 | |
63 | #define GPIO_OUTPUT_EN 0x04 | |
64 | #define GPIO_OUTPUT 0x08 | |
65 | #define GPIO_INPUT 0x0c | |
66 | #define GPIO_INPUT_POLARITY 0x10 | |
67 | #define GPIO_INTERRUPT_TYPE 0x14 | |
68 | #define GPIO_INTERRUPT_TYPE_LEVEL 0x0 | |
69 | #define GPIO_INTERRUPT_TYPE_EDGE 0x1 | |
70 | #define GPIO_INTERRUPT_EDGE 0x18 | |
71 | #define GPIO_INTERRUPT_EDGE_SINGLE 0x0 | |
72 | #define GPIO_INTERRUPT_EDGE_DUAL 0x1 | |
73 | #define GPIO_INTERRUPT_EN 0x1c | |
74 | #define GPIO_INTERRUPT_STATUS 0x20 | |
75 | ||
76 | struct pistachio_function { | |
77 | const char *name; | |
78 | const char * const *groups; | |
79 | unsigned int ngroups; | |
80 | const int *scenarios; | |
81 | unsigned int nscenarios; | |
82 | unsigned int scenario_reg; | |
83 | unsigned int scenario_shift; | |
84 | unsigned int scenario_mask; | |
85 | }; | |
86 | ||
87 | struct pistachio_pin_group { | |
88 | const char *name; | |
89 | unsigned int pin; | |
90 | int mux_option[3]; | |
91 | int mux_reg; | |
92 | int mux_shift; | |
93 | int mux_mask; | |
94 | }; | |
95 | ||
96 | struct pistachio_gpio_bank { | |
97 | struct pistachio_pinctrl *pctl; | |
98 | void __iomem *base; | |
99 | unsigned int pin_base; | |
100 | unsigned int npins; | |
101 | struct gpio_chip gpio_chip; | |
102 | struct irq_chip irq_chip; | |
103 | }; | |
104 | ||
105 | struct pistachio_pinctrl { | |
106 | struct device *dev; | |
107 | void __iomem *base; | |
108 | struct pinctrl_dev *pctldev; | |
109 | const struct pinctrl_pin_desc *pins; | |
110 | unsigned int npins; | |
111 | const struct pistachio_function *functions; | |
112 | unsigned int nfunctions; | |
113 | const struct pistachio_pin_group *groups; | |
114 | unsigned int ngroups; | |
115 | struct pistachio_gpio_bank *gpio_banks; | |
116 | unsigned int nbanks; | |
117 | }; | |
118 | ||
119 | #define PISTACHIO_PIN_MFIO(p) (p) | |
120 | #define PISTACHIO_PIN_TCK 90 | |
121 | #define PISTACHIO_PIN_TRSTN 91 | |
122 | #define PISTACHIO_PIN_TDI 92 | |
123 | #define PISTACHIO_PIN_TMS 93 | |
124 | #define PISTACHIO_PIN_TDO 94 | |
125 | #define PISTACHIO_PIN_JTAG_COMPLY 95 | |
126 | #define PISTACHIO_PIN_SAFE_MODE 96 | |
127 | #define PISTACHIO_PIN_POR_DISABLE 97 | |
128 | #define PISTACHIO_PIN_RESETN 98 | |
129 | ||
130 | #define MFIO_PIN_DESC(p) PINCTRL_PIN(PISTACHIO_PIN_MFIO(p), "mfio" #p) | |
131 | ||
132 | static const struct pinctrl_pin_desc pistachio_pins[] = { | |
133 | MFIO_PIN_DESC(0), | |
134 | MFIO_PIN_DESC(1), | |
135 | MFIO_PIN_DESC(2), | |
136 | MFIO_PIN_DESC(3), | |
137 | MFIO_PIN_DESC(4), | |
138 | MFIO_PIN_DESC(5), | |
139 | MFIO_PIN_DESC(6), | |
140 | MFIO_PIN_DESC(7), | |
141 | MFIO_PIN_DESC(8), | |
142 | MFIO_PIN_DESC(9), | |
143 | MFIO_PIN_DESC(10), | |
144 | MFIO_PIN_DESC(11), | |
145 | MFIO_PIN_DESC(12), | |
146 | MFIO_PIN_DESC(13), | |
147 | MFIO_PIN_DESC(14), | |
148 | MFIO_PIN_DESC(15), | |
149 | MFIO_PIN_DESC(16), | |
150 | MFIO_PIN_DESC(17), | |
151 | MFIO_PIN_DESC(18), | |
152 | MFIO_PIN_DESC(19), | |
153 | MFIO_PIN_DESC(20), | |
154 | MFIO_PIN_DESC(21), | |
155 | MFIO_PIN_DESC(22), | |
156 | MFIO_PIN_DESC(23), | |
157 | MFIO_PIN_DESC(24), | |
158 | MFIO_PIN_DESC(25), | |
159 | MFIO_PIN_DESC(26), | |
160 | MFIO_PIN_DESC(27), | |
161 | MFIO_PIN_DESC(28), | |
162 | MFIO_PIN_DESC(29), | |
163 | MFIO_PIN_DESC(30), | |
164 | MFIO_PIN_DESC(31), | |
165 | MFIO_PIN_DESC(32), | |
166 | MFIO_PIN_DESC(33), | |
167 | MFIO_PIN_DESC(34), | |
168 | MFIO_PIN_DESC(35), | |
169 | MFIO_PIN_DESC(36), | |
170 | MFIO_PIN_DESC(37), | |
171 | MFIO_PIN_DESC(38), | |
172 | MFIO_PIN_DESC(39), | |
173 | MFIO_PIN_DESC(40), | |
174 | MFIO_PIN_DESC(41), | |
175 | MFIO_PIN_DESC(42), | |
176 | MFIO_PIN_DESC(43), | |
177 | MFIO_PIN_DESC(44), | |
178 | MFIO_PIN_DESC(45), | |
179 | MFIO_PIN_DESC(46), | |
180 | MFIO_PIN_DESC(47), | |
181 | MFIO_PIN_DESC(48), | |
182 | MFIO_PIN_DESC(49), | |
183 | MFIO_PIN_DESC(50), | |
184 | MFIO_PIN_DESC(51), | |
185 | MFIO_PIN_DESC(52), | |
186 | MFIO_PIN_DESC(53), | |
187 | MFIO_PIN_DESC(54), | |
188 | MFIO_PIN_DESC(55), | |
189 | MFIO_PIN_DESC(56), | |
190 | MFIO_PIN_DESC(57), | |
191 | MFIO_PIN_DESC(58), | |
192 | MFIO_PIN_DESC(59), | |
193 | MFIO_PIN_DESC(60), | |
194 | MFIO_PIN_DESC(61), | |
195 | MFIO_PIN_DESC(62), | |
196 | MFIO_PIN_DESC(63), | |
197 | MFIO_PIN_DESC(64), | |
198 | MFIO_PIN_DESC(65), | |
199 | MFIO_PIN_DESC(66), | |
200 | MFIO_PIN_DESC(67), | |
201 | MFIO_PIN_DESC(68), | |
202 | MFIO_PIN_DESC(69), | |
203 | MFIO_PIN_DESC(70), | |
204 | MFIO_PIN_DESC(71), | |
205 | MFIO_PIN_DESC(72), | |
206 | MFIO_PIN_DESC(73), | |
207 | MFIO_PIN_DESC(74), | |
208 | MFIO_PIN_DESC(75), | |
209 | MFIO_PIN_DESC(76), | |
210 | MFIO_PIN_DESC(77), | |
211 | MFIO_PIN_DESC(78), | |
212 | MFIO_PIN_DESC(79), | |
213 | MFIO_PIN_DESC(80), | |
214 | MFIO_PIN_DESC(81), | |
215 | MFIO_PIN_DESC(82), | |
216 | MFIO_PIN_DESC(83), | |
217 | MFIO_PIN_DESC(84), | |
218 | MFIO_PIN_DESC(85), | |
219 | MFIO_PIN_DESC(86), | |
220 | MFIO_PIN_DESC(87), | |
221 | MFIO_PIN_DESC(88), | |
222 | MFIO_PIN_DESC(89), | |
223 | PINCTRL_PIN(PISTACHIO_PIN_TCK, "tck"), | |
224 | PINCTRL_PIN(PISTACHIO_PIN_TRSTN, "trstn"), | |
225 | PINCTRL_PIN(PISTACHIO_PIN_TDI, "tdi"), | |
226 | PINCTRL_PIN(PISTACHIO_PIN_TMS, "tms"), | |
227 | PINCTRL_PIN(PISTACHIO_PIN_TDO, "tdo"), | |
228 | PINCTRL_PIN(PISTACHIO_PIN_JTAG_COMPLY, "jtag_comply"), | |
229 | PINCTRL_PIN(PISTACHIO_PIN_SAFE_MODE, "safe_mode"), | |
230 | PINCTRL_PIN(PISTACHIO_PIN_POR_DISABLE, "por_disable"), | |
231 | PINCTRL_PIN(PISTACHIO_PIN_RESETN, "resetn"), | |
232 | }; | |
233 | ||
234 | static const char * const pistachio_spim0_groups[] = { | |
235 | "mfio1", "mfio2", "mfio8", "mfio9", "mfio10", "mfio28", "mfio29", | |
236 | "mfio30", "mfio55", "mfio56", "mfio57", | |
237 | }; | |
238 | ||
239 | static const char * const pistachio_spim1_groups[] = { | |
240 | "mfio0", "mfio1", "mfio2", "mfio3", "mfio4", "mfio5", "mfio6", | |
241 | "mfio7", "mfio31", "mfio55", "mfio56", "mfio57", "mfio58", | |
242 | }; | |
243 | ||
244 | static const char * const pistachio_spis_groups[] = { | |
245 | "mfio11", "mfio12", "mfio13", "mfio14", | |
246 | }; | |
247 | ||
248 | static const char *const pistachio_sdhost_groups[] = { | |
249 | "mfio15", "mfio16", "mfio17", "mfio18", "mfio19", "mfio20", | |
250 | "mfio21", "mfio22", "mfio23", "mfio24", "mfio25", "mfio26", | |
251 | "mfio27", | |
252 | }; | |
253 | ||
254 | static const char * const pistachio_i2c0_groups[] = { | |
255 | "mfio28", "mfio29", | |
256 | }; | |
257 | ||
258 | static const char * const pistachio_i2c1_groups[] = { | |
259 | "mfio30", "mfio31", | |
260 | }; | |
261 | ||
262 | static const char * const pistachio_i2c2_groups[] = { | |
263 | "mfio32", "mfio33", | |
264 | }; | |
265 | ||
266 | static const char * const pistachio_i2c3_groups[] = { | |
267 | "mfio34", "mfio35", | |
268 | }; | |
269 | ||
270 | static const char * const pistachio_audio_clk_in_groups[] = { | |
271 | "mfio36", | |
272 | }; | |
273 | ||
274 | static const char * const pistachio_i2s_out_groups[] = { | |
275 | "mfio36", "mfio37", "mfio38", "mfio39", "mfio40", "mfio41", | |
276 | "mfio42", "mfio43", "mfio44", | |
277 | }; | |
278 | ||
279 | static const char * const pistachio_debug_raw_cca_ind_groups[] = { | |
280 | "mfio37", | |
281 | }; | |
282 | ||
283 | static const char * const pistachio_debug_ed_sec20_cca_ind_groups[] = { | |
284 | "mfio38", | |
285 | }; | |
286 | ||
287 | static const char * const pistachio_debug_ed_sec40_cca_ind_groups[] = { | |
288 | "mfio39", | |
289 | }; | |
290 | ||
291 | static const char * const pistachio_debug_agc_done_0_groups[] = { | |
292 | "mfio40", | |
293 | }; | |
294 | ||
295 | static const char * const pistachio_debug_agc_done_1_groups[] = { | |
296 | "mfio41", | |
297 | }; | |
298 | ||
299 | static const char * const pistachio_debug_ed_cca_ind_groups[] = { | |
300 | "mfio42", | |
301 | }; | |
302 | ||
303 | static const char * const pistachio_debug_s2l_done_groups[] = { | |
304 | "mfio43", | |
305 | }; | |
306 | ||
307 | static const char * const pistachio_i2s_dac_clk_groups[] = { | |
308 | "mfio45", | |
309 | }; | |
310 | ||
311 | static const char * const pistachio_audio_sync_groups[] = { | |
312 | "mfio45", | |
313 | }; | |
314 | ||
315 | static const char * const pistachio_audio_trigger_groups[] = { | |
316 | "mfio46", | |
317 | }; | |
318 | ||
319 | static const char * const pistachio_i2s_in_groups[] = { | |
320 | "mfio47", "mfio48", "mfio49", "mfio50", "mfio51", "mfio52", | |
321 | "mfio53", "mfio54", | |
322 | }; | |
323 | ||
324 | static const char * const pistachio_uart0_groups[] = { | |
325 | "mfio55", "mfio56", "mfio57", "mfio58", | |
326 | }; | |
327 | ||
328 | static const char * const pistachio_uart1_groups[] = { | |
329 | "mfio59", "mfio60", "mfio1", "mfio2", | |
330 | }; | |
331 | ||
332 | static const char * const pistachio_spdif_out_groups[] = { | |
333 | "mfio61", | |
334 | }; | |
335 | ||
336 | static const char * const pistachio_spdif_in_groups[] = { | |
337 | "mfio62", "mfio54", | |
338 | }; | |
339 | static const int pistachio_spdif_in_scenarios[] = { | |
340 | PISTACHIO_PIN_MFIO(62), | |
341 | PISTACHIO_PIN_MFIO(54), | |
342 | }; | |
343 | ||
344 | static const char * const pistachio_eth_groups[] = { | |
345 | "mfio63", "mfio64", "mfio65", "mfio66", "mfio67", "mfio68", | |
346 | "mfio69", "mfio70", "mfio71", | |
347 | }; | |
348 | ||
349 | static const char * const pistachio_ir_groups[] = { | |
350 | "mfio72", | |
351 | }; | |
352 | ||
353 | static const char * const pistachio_pwmpdm_groups[] = { | |
354 | "mfio73", "mfio74", "mfio75", "mfio76", | |
355 | }; | |
356 | ||
357 | static const char * const pistachio_mips_trace_clk_groups[] = { | |
358 | "mfio15", "mfio63", "mfio73", | |
359 | }; | |
360 | ||
361 | static const char * const pistachio_mips_trace_dint_groups[] = { | |
362 | "mfio16", "mfio64", "mfio74", | |
363 | }; | |
364 | static const int pistachio_mips_trace_dint_scenarios[] = { | |
365 | PISTACHIO_PIN_MFIO(16), | |
366 | PISTACHIO_PIN_MFIO(64), | |
367 | PISTACHIO_PIN_MFIO(74), | |
368 | }; | |
369 | ||
370 | static const char * const pistachio_mips_trace_trigout_groups[] = { | |
371 | "mfio17", "mfio65", "mfio75", | |
372 | }; | |
373 | ||
374 | static const char * const pistachio_mips_trace_trigin_groups[] = { | |
375 | "mfio18", "mfio66", "mfio76", | |
376 | }; | |
377 | static const int pistachio_mips_trace_trigin_scenarios[] = { | |
378 | PISTACHIO_PIN_MFIO(18), | |
379 | PISTACHIO_PIN_MFIO(66), | |
380 | PISTACHIO_PIN_MFIO(76), | |
381 | }; | |
382 | ||
383 | static const char * const pistachio_mips_trace_dm_groups[] = { | |
384 | "mfio19", "mfio67", "mfio77", | |
385 | }; | |
386 | ||
387 | static const char * const pistachio_mips_probe_n_groups[] = { | |
388 | "mfio20", "mfio68", "mfio78", | |
389 | }; | |
390 | static const int pistachio_mips_probe_n_scenarios[] = { | |
391 | PISTACHIO_PIN_MFIO(20), | |
392 | PISTACHIO_PIN_MFIO(68), | |
393 | PISTACHIO_PIN_MFIO(78), | |
394 | }; | |
395 | ||
396 | static const char * const pistachio_mips_trace_data_groups[] = { | |
397 | "mfio15", "mfio16", "mfio17", "mfio18", "mfio19", "mfio20", | |
398 | "mfio21", "mfio22", "mfio63", "mfio64", "mfio65", "mfio66", | |
399 | "mfio67", "mfio68", "mfio69", "mfio70", "mfio79", "mfio80", | |
400 | "mfio81", "mfio82", "mfio83", "mfio84", "mfio85", "mfio86", | |
401 | }; | |
402 | ||
403 | static const char * const pistachio_sram_debug_groups[] = { | |
404 | "mfio73", "mfio74", | |
405 | }; | |
406 | ||
407 | static const char * const pistachio_rom_debug_groups[] = { | |
408 | "mfio75", "mfio76", | |
409 | }; | |
410 | ||
411 | static const char * const pistachio_rpu_debug_groups[] = { | |
412 | "mfio77", "mfio78", | |
413 | }; | |
414 | ||
415 | static const char * const pistachio_mips_debug_groups[] = { | |
416 | "mfio79", "mfio80", | |
417 | }; | |
418 | ||
419 | static const char * const pistachio_eth_debug_groups[] = { | |
420 | "mfio81", "mfio82", | |
421 | }; | |
422 | ||
423 | static const char * const pistachio_usb_debug_groups[] = { | |
424 | "mfio83", "mfio84", | |
425 | }; | |
426 | ||
427 | static const char * const pistachio_sdhost_debug_groups[] = { | |
428 | "mfio85", "mfio86", | |
429 | }; | |
430 | ||
431 | static const char * const pistachio_socif_debug_groups[] = { | |
432 | "mfio87", "mfio88", | |
433 | }; | |
434 | ||
435 | static const char * const pistachio_mdc_debug_groups[] = { | |
436 | "mfio77", "mfio78", | |
437 | }; | |
438 | ||
439 | static const char * const pistachio_ddr_debug_groups[] = { | |
440 | "mfio79", "mfio80", | |
441 | }; | |
442 | ||
443 | static const char * const pistachio_dreq0_groups[] = { | |
444 | "mfio81", | |
445 | }; | |
446 | ||
447 | static const char * const pistachio_dreq1_groups[] = { | |
448 | "mfio82", | |
449 | }; | |
450 | ||
451 | static const char * const pistachio_dreq2_groups[] = { | |
452 | "mfio87", | |
453 | }; | |
454 | ||
455 | static const char * const pistachio_dreq3_groups[] = { | |
456 | "mfio88", | |
457 | }; | |
458 | ||
459 | static const char * const pistachio_dreq4_groups[] = { | |
460 | "mfio89", | |
461 | }; | |
462 | ||
463 | static const char * const pistachio_dreq5_groups[] = { | |
464 | "mfio89", | |
465 | }; | |
466 | ||
467 | static const char * const pistachio_mips_pll_lock_groups[] = { | |
468 | "mfio83", | |
469 | }; | |
470 | ||
e9adb336 | 471 | static const char * const pistachio_audio_pll_lock_groups[] = { |
cefc03e5 AB |
472 | "mfio84", |
473 | }; | |
474 | ||
e9adb336 | 475 | static const char * const pistachio_rpu_v_pll_lock_groups[] = { |
cefc03e5 AB |
476 | "mfio85", |
477 | }; | |
478 | ||
e9adb336 | 479 | static const char * const pistachio_rpu_l_pll_lock_groups[] = { |
cefc03e5 AB |
480 | "mfio86", |
481 | }; | |
482 | ||
e9adb336 | 483 | static const char * const pistachio_sys_pll_lock_groups[] = { |
cefc03e5 AB |
484 | "mfio87", |
485 | }; | |
486 | ||
e9adb336 | 487 | static const char * const pistachio_wifi_pll_lock_groups[] = { |
cefc03e5 AB |
488 | "mfio88", |
489 | }; | |
490 | ||
e9adb336 | 491 | static const char * const pistachio_bt_pll_lock_groups[] = { |
cefc03e5 AB |
492 | "mfio89", |
493 | }; | |
494 | ||
495 | #define FUNCTION(_name) \ | |
496 | { \ | |
497 | .name = #_name, \ | |
498 | .groups = pistachio_##_name##_groups, \ | |
499 | .ngroups = ARRAY_SIZE(pistachio_##_name##_groups), \ | |
500 | } | |
501 | ||
502 | #define FUNCTION_SCENARIO(_name, _reg, _shift, _mask) \ | |
503 | { \ | |
504 | .name = #_name, \ | |
505 | .groups = pistachio_##_name##_groups, \ | |
506 | .ngroups = ARRAY_SIZE(pistachio_##_name##_groups), \ | |
507 | .scenarios = pistachio_##_name##_scenarios, \ | |
508 | .nscenarios = ARRAY_SIZE(pistachio_##_name##_scenarios),\ | |
509 | .scenario_reg = _reg, \ | |
510 | .scenario_shift = _shift, \ | |
511 | .scenario_mask = _mask, \ | |
512 | } | |
513 | ||
514 | enum pistachio_mux_option { | |
515 | PISTACHIO_FUNCTION_NONE = -1, | |
516 | PISTACHIO_FUNCTION_SPIM0, | |
517 | PISTACHIO_FUNCTION_SPIM1, | |
518 | PISTACHIO_FUNCTION_SPIS, | |
519 | PISTACHIO_FUNCTION_SDHOST, | |
520 | PISTACHIO_FUNCTION_I2C0, | |
521 | PISTACHIO_FUNCTION_I2C1, | |
522 | PISTACHIO_FUNCTION_I2C2, | |
523 | PISTACHIO_FUNCTION_I2C3, | |
524 | PISTACHIO_FUNCTION_AUDIO_CLK_IN, | |
525 | PISTACHIO_FUNCTION_I2S_OUT, | |
526 | PISTACHIO_FUNCTION_I2S_DAC_CLK, | |
527 | PISTACHIO_FUNCTION_AUDIO_SYNC, | |
528 | PISTACHIO_FUNCTION_AUDIO_TRIGGER, | |
529 | PISTACHIO_FUNCTION_I2S_IN, | |
530 | PISTACHIO_FUNCTION_UART0, | |
531 | PISTACHIO_FUNCTION_UART1, | |
532 | PISTACHIO_FUNCTION_SPDIF_OUT, | |
533 | PISTACHIO_FUNCTION_SPDIF_IN, | |
534 | PISTACHIO_FUNCTION_ETH, | |
535 | PISTACHIO_FUNCTION_IR, | |
536 | PISTACHIO_FUNCTION_PWMPDM, | |
537 | PISTACHIO_FUNCTION_MIPS_TRACE_CLK, | |
538 | PISTACHIO_FUNCTION_MIPS_TRACE_DINT, | |
539 | PISTACHIO_FUNCTION_MIPS_TRACE_TRIGOUT, | |
540 | PISTACHIO_FUNCTION_MIPS_TRACE_TRIGIN, | |
541 | PISTACHIO_FUNCTION_MIPS_TRACE_DM, | |
542 | PISTACHIO_FUNCTION_MIPS_TRACE_PROBE_N, | |
543 | PISTACHIO_FUNCTION_MIPS_TRACE_DATA, | |
544 | PISTACHIO_FUNCTION_SRAM_DEBUG, | |
545 | PISTACHIO_FUNCTION_ROM_DEBUG, | |
546 | PISTACHIO_FUNCTION_RPU_DEBUG, | |
547 | PISTACHIO_FUNCTION_MIPS_DEBUG, | |
548 | PISTACHIO_FUNCTION_ETH_DEBUG, | |
549 | PISTACHIO_FUNCTION_USB_DEBUG, | |
550 | PISTACHIO_FUNCTION_SDHOST_DEBUG, | |
551 | PISTACHIO_FUNCTION_SOCIF_DEBUG, | |
552 | PISTACHIO_FUNCTION_MDC_DEBUG, | |
553 | PISTACHIO_FUNCTION_DDR_DEBUG, | |
554 | PISTACHIO_FUNCTION_DREQ0, | |
555 | PISTACHIO_FUNCTION_DREQ1, | |
556 | PISTACHIO_FUNCTION_DREQ2, | |
557 | PISTACHIO_FUNCTION_DREQ3, | |
558 | PISTACHIO_FUNCTION_DREQ4, | |
559 | PISTACHIO_FUNCTION_DREQ5, | |
560 | PISTACHIO_FUNCTION_MIPS_PLL_LOCK, | |
e9adb336 GR |
561 | PISTACHIO_FUNCTION_AUDIO_PLL_LOCK, |
562 | PISTACHIO_FUNCTION_RPU_V_PLL_LOCK, | |
563 | PISTACHIO_FUNCTION_RPU_L_PLL_LOCK, | |
cefc03e5 AB |
564 | PISTACHIO_FUNCTION_SYS_PLL_LOCK, |
565 | PISTACHIO_FUNCTION_WIFI_PLL_LOCK, | |
566 | PISTACHIO_FUNCTION_BT_PLL_LOCK, | |
cefc03e5 AB |
567 | PISTACHIO_FUNCTION_DEBUG_RAW_CCA_IND, |
568 | PISTACHIO_FUNCTION_DEBUG_ED_SEC20_CCA_IND, | |
569 | PISTACHIO_FUNCTION_DEBUG_ED_SEC40_CCA_IND, | |
570 | PISTACHIO_FUNCTION_DEBUG_AGC_DONE_0, | |
571 | PISTACHIO_FUNCTION_DEBUG_AGC_DONE_1, | |
572 | PISTACHIO_FUNCTION_DEBUG_ED_CCA_IND, | |
573 | PISTACHIO_FUNCTION_DEBUG_S2L_DONE, | |
574 | }; | |
575 | ||
576 | static const struct pistachio_function pistachio_functions[] = { | |
577 | FUNCTION(spim0), | |
578 | FUNCTION(spim1), | |
579 | FUNCTION(spis), | |
580 | FUNCTION(sdhost), | |
581 | FUNCTION(i2c0), | |
582 | FUNCTION(i2c1), | |
583 | FUNCTION(i2c2), | |
584 | FUNCTION(i2c3), | |
585 | FUNCTION(audio_clk_in), | |
586 | FUNCTION(i2s_out), | |
587 | FUNCTION(i2s_dac_clk), | |
588 | FUNCTION(audio_sync), | |
589 | FUNCTION(audio_trigger), | |
590 | FUNCTION(i2s_in), | |
591 | FUNCTION(uart0), | |
592 | FUNCTION(uart1), | |
593 | FUNCTION(spdif_out), | |
594 | FUNCTION_SCENARIO(spdif_in, PADS_SCENARIO_SELECT, 0, 0x1), | |
595 | FUNCTION(eth), | |
596 | FUNCTION(ir), | |
597 | FUNCTION(pwmpdm), | |
598 | FUNCTION(mips_trace_clk), | |
599 | FUNCTION_SCENARIO(mips_trace_dint, PADS_SCENARIO_SELECT, 1, 0x3), | |
600 | FUNCTION(mips_trace_trigout), | |
601 | FUNCTION_SCENARIO(mips_trace_trigin, PADS_SCENARIO_SELECT, 3, 0x3), | |
602 | FUNCTION(mips_trace_dm), | |
603 | FUNCTION_SCENARIO(mips_probe_n, PADS_SCENARIO_SELECT, 5, 0x3), | |
604 | FUNCTION(mips_trace_data), | |
605 | FUNCTION(sram_debug), | |
606 | FUNCTION(rom_debug), | |
607 | FUNCTION(rpu_debug), | |
608 | FUNCTION(mips_debug), | |
609 | FUNCTION(eth_debug), | |
610 | FUNCTION(usb_debug), | |
611 | FUNCTION(sdhost_debug), | |
612 | FUNCTION(socif_debug), | |
613 | FUNCTION(mdc_debug), | |
614 | FUNCTION(ddr_debug), | |
615 | FUNCTION(dreq0), | |
616 | FUNCTION(dreq1), | |
617 | FUNCTION(dreq2), | |
618 | FUNCTION(dreq3), | |
619 | FUNCTION(dreq4), | |
620 | FUNCTION(dreq5), | |
621 | FUNCTION(mips_pll_lock), | |
e9adb336 GR |
622 | FUNCTION(audio_pll_lock), |
623 | FUNCTION(rpu_v_pll_lock), | |
624 | FUNCTION(rpu_l_pll_lock), | |
cefc03e5 AB |
625 | FUNCTION(sys_pll_lock), |
626 | FUNCTION(wifi_pll_lock), | |
627 | FUNCTION(bt_pll_lock), | |
cefc03e5 AB |
628 | FUNCTION(debug_raw_cca_ind), |
629 | FUNCTION(debug_ed_sec20_cca_ind), | |
630 | FUNCTION(debug_ed_sec40_cca_ind), | |
631 | FUNCTION(debug_agc_done_0), | |
632 | FUNCTION(debug_agc_done_1), | |
633 | FUNCTION(debug_ed_cca_ind), | |
634 | FUNCTION(debug_s2l_done), | |
635 | }; | |
636 | ||
637 | #define PIN_GROUP(_pin, _name) \ | |
638 | { \ | |
639 | .name = #_name, \ | |
640 | .pin = PISTACHIO_PIN_##_pin, \ | |
641 | .mux_option = { \ | |
642 | PISTACHIO_FUNCTION_NONE, \ | |
643 | PISTACHIO_FUNCTION_NONE, \ | |
644 | PISTACHIO_FUNCTION_NONE, \ | |
645 | }, \ | |
646 | .mux_reg = -1, \ | |
647 | .mux_shift = -1, \ | |
648 | .mux_mask = -1, \ | |
649 | } | |
650 | ||
651 | #define MFIO_PIN_GROUP(_pin, _func) \ | |
652 | { \ | |
653 | .name = "mfio" #_pin, \ | |
654 | .pin = PISTACHIO_PIN_MFIO(_pin), \ | |
655 | .mux_option = { \ | |
656 | PISTACHIO_FUNCTION_##_func, \ | |
657 | PISTACHIO_FUNCTION_NONE, \ | |
658 | PISTACHIO_FUNCTION_NONE, \ | |
659 | }, \ | |
660 | .mux_reg = -1, \ | |
661 | .mux_shift = -1, \ | |
662 | .mux_mask = -1, \ | |
663 | } | |
664 | ||
665 | #define MFIO_MUX_PIN_GROUP(_pin, _f0, _f1, _f2, _reg, _shift, _mask) \ | |
666 | { \ | |
667 | .name = "mfio" #_pin, \ | |
668 | .pin = PISTACHIO_PIN_MFIO(_pin), \ | |
669 | .mux_option = { \ | |
670 | PISTACHIO_FUNCTION_##_f0, \ | |
671 | PISTACHIO_FUNCTION_##_f1, \ | |
672 | PISTACHIO_FUNCTION_##_f2, \ | |
673 | }, \ | |
674 | .mux_reg = _reg, \ | |
675 | .mux_shift = _shift, \ | |
676 | .mux_mask = _mask, \ | |
677 | } | |
678 | ||
679 | static const struct pistachio_pin_group pistachio_groups[] = { | |
680 | MFIO_PIN_GROUP(0, SPIM1), | |
681 | MFIO_MUX_PIN_GROUP(1, SPIM1, SPIM0, UART1, | |
682 | PADS_FUNCTION_SELECT0, 0, 0x3), | |
683 | MFIO_MUX_PIN_GROUP(2, SPIM1, SPIM0, UART1, | |
684 | PADS_FUNCTION_SELECT0, 2, 0x3), | |
685 | MFIO_PIN_GROUP(3, SPIM1), | |
686 | MFIO_PIN_GROUP(4, SPIM1), | |
687 | MFIO_PIN_GROUP(5, SPIM1), | |
688 | MFIO_PIN_GROUP(6, SPIM1), | |
689 | MFIO_PIN_GROUP(7, SPIM1), | |
690 | MFIO_PIN_GROUP(8, SPIM0), | |
691 | MFIO_PIN_GROUP(9, SPIM0), | |
692 | MFIO_PIN_GROUP(10, SPIM0), | |
693 | MFIO_PIN_GROUP(11, SPIS), | |
694 | MFIO_PIN_GROUP(12, SPIS), | |
695 | MFIO_PIN_GROUP(13, SPIS), | |
696 | MFIO_PIN_GROUP(14, SPIS), | |
697 | MFIO_MUX_PIN_GROUP(15, SDHOST, MIPS_TRACE_CLK, MIPS_TRACE_DATA, | |
698 | PADS_FUNCTION_SELECT0, 4, 0x3), | |
699 | MFIO_MUX_PIN_GROUP(16, SDHOST, MIPS_TRACE_DINT, MIPS_TRACE_DATA, | |
700 | PADS_FUNCTION_SELECT0, 6, 0x3), | |
701 | MFIO_MUX_PIN_GROUP(17, SDHOST, MIPS_TRACE_TRIGOUT, MIPS_TRACE_DATA, | |
702 | PADS_FUNCTION_SELECT0, 8, 0x3), | |
703 | MFIO_MUX_PIN_GROUP(18, SDHOST, MIPS_TRACE_TRIGIN, MIPS_TRACE_DATA, | |
704 | PADS_FUNCTION_SELECT0, 10, 0x3), | |
705 | MFIO_MUX_PIN_GROUP(19, SDHOST, MIPS_TRACE_DM, MIPS_TRACE_DATA, | |
706 | PADS_FUNCTION_SELECT0, 12, 0x3), | |
707 | MFIO_MUX_PIN_GROUP(20, SDHOST, MIPS_TRACE_PROBE_N, MIPS_TRACE_DATA, | |
708 | PADS_FUNCTION_SELECT0, 14, 0x3), | |
709 | MFIO_MUX_PIN_GROUP(21, SDHOST, NONE, MIPS_TRACE_DATA, | |
710 | PADS_FUNCTION_SELECT0, 16, 0x3), | |
711 | MFIO_MUX_PIN_GROUP(22, SDHOST, NONE, MIPS_TRACE_DATA, | |
712 | PADS_FUNCTION_SELECT0, 18, 0x3), | |
713 | MFIO_PIN_GROUP(23, SDHOST), | |
714 | MFIO_PIN_GROUP(24, SDHOST), | |
715 | MFIO_PIN_GROUP(25, SDHOST), | |
716 | MFIO_PIN_GROUP(26, SDHOST), | |
717 | MFIO_PIN_GROUP(27, SDHOST), | |
718 | MFIO_MUX_PIN_GROUP(28, I2C0, SPIM0, NONE, | |
719 | PADS_FUNCTION_SELECT0, 20, 0x1), | |
720 | MFIO_MUX_PIN_GROUP(29, I2C0, SPIM0, NONE, | |
721 | PADS_FUNCTION_SELECT0, 21, 0x1), | |
722 | MFIO_MUX_PIN_GROUP(30, I2C1, SPIM0, NONE, | |
723 | PADS_FUNCTION_SELECT0, 22, 0x1), | |
724 | MFIO_MUX_PIN_GROUP(31, I2C1, SPIM1, NONE, | |
725 | PADS_FUNCTION_SELECT0, 23, 0x1), | |
726 | MFIO_PIN_GROUP(32, I2C2), | |
727 | MFIO_PIN_GROUP(33, I2C2), | |
728 | MFIO_PIN_GROUP(34, I2C3), | |
729 | MFIO_PIN_GROUP(35, I2C3), | |
730 | MFIO_MUX_PIN_GROUP(36, I2S_OUT, AUDIO_CLK_IN, NONE, | |
731 | PADS_FUNCTION_SELECT0, 24, 0x1), | |
732 | MFIO_MUX_PIN_GROUP(37, I2S_OUT, DEBUG_RAW_CCA_IND, NONE, | |
733 | PADS_FUNCTION_SELECT0, 25, 0x1), | |
734 | MFIO_MUX_PIN_GROUP(38, I2S_OUT, DEBUG_ED_SEC20_CCA_IND, NONE, | |
735 | PADS_FUNCTION_SELECT0, 26, 0x1), | |
736 | MFIO_MUX_PIN_GROUP(39, I2S_OUT, DEBUG_ED_SEC40_CCA_IND, NONE, | |
737 | PADS_FUNCTION_SELECT0, 27, 0x1), | |
738 | MFIO_MUX_PIN_GROUP(40, I2S_OUT, DEBUG_AGC_DONE_0, NONE, | |
739 | PADS_FUNCTION_SELECT0, 28, 0x1), | |
740 | MFIO_MUX_PIN_GROUP(41, I2S_OUT, DEBUG_AGC_DONE_1, NONE, | |
741 | PADS_FUNCTION_SELECT0, 29, 0x1), | |
742 | MFIO_MUX_PIN_GROUP(42, I2S_OUT, DEBUG_ED_CCA_IND, NONE, | |
743 | PADS_FUNCTION_SELECT0, 30, 0x1), | |
744 | MFIO_MUX_PIN_GROUP(43, I2S_OUT, DEBUG_S2L_DONE, NONE, | |
745 | PADS_FUNCTION_SELECT0, 31, 0x1), | |
746 | MFIO_PIN_GROUP(44, I2S_OUT), | |
747 | MFIO_MUX_PIN_GROUP(45, I2S_DAC_CLK, AUDIO_SYNC, NONE, | |
748 | PADS_FUNCTION_SELECT1, 0, 0x1), | |
749 | MFIO_PIN_GROUP(46, AUDIO_TRIGGER), | |
750 | MFIO_PIN_GROUP(47, I2S_IN), | |
751 | MFIO_PIN_GROUP(48, I2S_IN), | |
752 | MFIO_PIN_GROUP(49, I2S_IN), | |
753 | MFIO_PIN_GROUP(50, I2S_IN), | |
754 | MFIO_PIN_GROUP(51, I2S_IN), | |
755 | MFIO_PIN_GROUP(52, I2S_IN), | |
756 | MFIO_PIN_GROUP(53, I2S_IN), | |
757 | MFIO_MUX_PIN_GROUP(54, I2S_IN, NONE, SPDIF_IN, | |
758 | PADS_FUNCTION_SELECT1, 1, 0x3), | |
759 | MFIO_MUX_PIN_GROUP(55, UART0, SPIM0, SPIM1, | |
760 | PADS_FUNCTION_SELECT1, 3, 0x3), | |
761 | MFIO_MUX_PIN_GROUP(56, UART0, SPIM0, SPIM1, | |
762 | PADS_FUNCTION_SELECT1, 5, 0x3), | |
763 | MFIO_MUX_PIN_GROUP(57, UART0, SPIM0, SPIM1, | |
764 | PADS_FUNCTION_SELECT1, 7, 0x3), | |
765 | MFIO_MUX_PIN_GROUP(58, UART0, SPIM1, NONE, | |
766 | PADS_FUNCTION_SELECT1, 9, 0x1), | |
767 | MFIO_PIN_GROUP(59, UART1), | |
768 | MFIO_PIN_GROUP(60, UART1), | |
769 | MFIO_PIN_GROUP(61, SPDIF_OUT), | |
770 | MFIO_PIN_GROUP(62, SPDIF_IN), | |
771 | MFIO_MUX_PIN_GROUP(63, ETH, MIPS_TRACE_CLK, MIPS_TRACE_DATA, | |
772 | PADS_FUNCTION_SELECT1, 10, 0x3), | |
773 | MFIO_MUX_PIN_GROUP(64, ETH, MIPS_TRACE_DINT, MIPS_TRACE_DATA, | |
774 | PADS_FUNCTION_SELECT1, 12, 0x3), | |
775 | MFIO_MUX_PIN_GROUP(65, ETH, MIPS_TRACE_TRIGOUT, MIPS_TRACE_DATA, | |
776 | PADS_FUNCTION_SELECT1, 14, 0x3), | |
777 | MFIO_MUX_PIN_GROUP(66, ETH, MIPS_TRACE_TRIGIN, MIPS_TRACE_DATA, | |
778 | PADS_FUNCTION_SELECT1, 16, 0x3), | |
779 | MFIO_MUX_PIN_GROUP(67, ETH, MIPS_TRACE_DM, MIPS_TRACE_DATA, | |
780 | PADS_FUNCTION_SELECT1, 18, 0x3), | |
781 | MFIO_MUX_PIN_GROUP(68, ETH, MIPS_TRACE_PROBE_N, MIPS_TRACE_DATA, | |
782 | PADS_FUNCTION_SELECT1, 20, 0x3), | |
783 | MFIO_MUX_PIN_GROUP(69, ETH, NONE, MIPS_TRACE_DATA, | |
784 | PADS_FUNCTION_SELECT1, 22, 0x3), | |
785 | MFIO_MUX_PIN_GROUP(70, ETH, NONE, MIPS_TRACE_DATA, | |
786 | PADS_FUNCTION_SELECT1, 24, 0x3), | |
787 | MFIO_PIN_GROUP(71, ETH), | |
788 | MFIO_PIN_GROUP(72, IR), | |
789 | MFIO_MUX_PIN_GROUP(73, PWMPDM, MIPS_TRACE_CLK, SRAM_DEBUG, | |
790 | PADS_FUNCTION_SELECT1, 26, 0x3), | |
791 | MFIO_MUX_PIN_GROUP(74, PWMPDM, MIPS_TRACE_DINT, SRAM_DEBUG, | |
792 | PADS_FUNCTION_SELECT1, 28, 0x3), | |
793 | MFIO_MUX_PIN_GROUP(75, PWMPDM, MIPS_TRACE_TRIGOUT, ROM_DEBUG, | |
794 | PADS_FUNCTION_SELECT1, 30, 0x3), | |
795 | MFIO_MUX_PIN_GROUP(76, PWMPDM, MIPS_TRACE_TRIGIN, ROM_DEBUG, | |
796 | PADS_FUNCTION_SELECT2, 0, 0x3), | |
797 | MFIO_MUX_PIN_GROUP(77, MDC_DEBUG, MIPS_TRACE_DM, RPU_DEBUG, | |
798 | PADS_FUNCTION_SELECT2, 2, 0x3), | |
799 | MFIO_MUX_PIN_GROUP(78, MDC_DEBUG, MIPS_TRACE_PROBE_N, RPU_DEBUG, | |
800 | PADS_FUNCTION_SELECT2, 4, 0x3), | |
801 | MFIO_MUX_PIN_GROUP(79, DDR_DEBUG, MIPS_TRACE_DATA, MIPS_DEBUG, | |
802 | PADS_FUNCTION_SELECT2, 6, 0x3), | |
803 | MFIO_MUX_PIN_GROUP(80, DDR_DEBUG, MIPS_TRACE_DATA, MIPS_DEBUG, | |
804 | PADS_FUNCTION_SELECT2, 8, 0x3), | |
805 | MFIO_MUX_PIN_GROUP(81, DREQ0, MIPS_TRACE_DATA, ETH_DEBUG, | |
806 | PADS_FUNCTION_SELECT2, 10, 0x3), | |
807 | MFIO_MUX_PIN_GROUP(82, DREQ1, MIPS_TRACE_DATA, ETH_DEBUG, | |
808 | PADS_FUNCTION_SELECT2, 12, 0x3), | |
809 | MFIO_MUX_PIN_GROUP(83, MIPS_PLL_LOCK, MIPS_TRACE_DATA, USB_DEBUG, | |
810 | PADS_FUNCTION_SELECT2, 14, 0x3), | |
a32ac291 | 811 | MFIO_MUX_PIN_GROUP(84, AUDIO_PLL_LOCK, MIPS_TRACE_DATA, USB_DEBUG, |
cefc03e5 | 812 | PADS_FUNCTION_SELECT2, 16, 0x3), |
a32ac291 | 813 | MFIO_MUX_PIN_GROUP(85, RPU_V_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG, |
cefc03e5 | 814 | PADS_FUNCTION_SELECT2, 18, 0x3), |
a32ac291 | 815 | MFIO_MUX_PIN_GROUP(86, RPU_L_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG, |
cefc03e5 | 816 | PADS_FUNCTION_SELECT2, 20, 0x3), |
a32ac291 | 817 | MFIO_MUX_PIN_GROUP(87, SYS_PLL_LOCK, DREQ2, SOCIF_DEBUG, |
cefc03e5 | 818 | PADS_FUNCTION_SELECT2, 22, 0x3), |
a32ac291 | 819 | MFIO_MUX_PIN_GROUP(88, WIFI_PLL_LOCK, DREQ3, SOCIF_DEBUG, |
cefc03e5 | 820 | PADS_FUNCTION_SELECT2, 24, 0x3), |
a32ac291 | 821 | MFIO_MUX_PIN_GROUP(89, BT_PLL_LOCK, DREQ4, DREQ5, |
cefc03e5 AB |
822 | PADS_FUNCTION_SELECT2, 26, 0x3), |
823 | PIN_GROUP(TCK, "tck"), | |
824 | PIN_GROUP(TRSTN, "trstn"), | |
825 | PIN_GROUP(TDI, "tdi"), | |
826 | PIN_GROUP(TMS, "tms"), | |
827 | PIN_GROUP(TDO, "tdo"), | |
828 | PIN_GROUP(JTAG_COMPLY, "jtag_comply"), | |
829 | PIN_GROUP(SAFE_MODE, "safe_mode"), | |
830 | PIN_GROUP(POR_DISABLE, "por_disable"), | |
831 | PIN_GROUP(RESETN, "resetn"), | |
832 | }; | |
833 | ||
834 | static inline u32 pctl_readl(struct pistachio_pinctrl *pctl, u32 reg) | |
835 | { | |
836 | return readl(pctl->base + reg); | |
837 | } | |
838 | ||
839 | static inline void pctl_writel(struct pistachio_pinctrl *pctl, u32 val, u32 reg) | |
840 | { | |
841 | writel(val, pctl->base + reg); | |
842 | } | |
843 | ||
cefc03e5 AB |
844 | static inline struct pistachio_gpio_bank *irqd_to_bank(struct irq_data *d) |
845 | { | |
3d18fb5c | 846 | return gpiochip_get_data(irq_data_get_irq_chip_data(d)); |
cefc03e5 AB |
847 | } |
848 | ||
849 | static inline u32 gpio_readl(struct pistachio_gpio_bank *bank, u32 reg) | |
850 | { | |
851 | return readl(bank->base + reg); | |
852 | } | |
853 | ||
854 | static inline void gpio_writel(struct pistachio_gpio_bank *bank, u32 val, | |
855 | u32 reg) | |
856 | { | |
857 | writel(val, bank->base + reg); | |
858 | } | |
859 | ||
860 | static inline void gpio_mask_writel(struct pistachio_gpio_bank *bank, | |
861 | u32 reg, unsigned int bit, u32 val) | |
862 | { | |
863 | /* | |
864 | * For most of the GPIO registers, bit 16 + X must be set in order to | |
865 | * write bit X. | |
866 | */ | |
867 | gpio_writel(bank, (0x10000 | val) << bit, reg); | |
868 | } | |
869 | ||
870 | static inline void gpio_enable(struct pistachio_gpio_bank *bank, | |
871 | unsigned offset) | |
872 | { | |
873 | gpio_mask_writel(bank, GPIO_BIT_EN, offset, 1); | |
874 | } | |
875 | ||
876 | static inline void gpio_disable(struct pistachio_gpio_bank *bank, | |
877 | unsigned offset) | |
878 | { | |
879 | gpio_mask_writel(bank, GPIO_BIT_EN, offset, 0); | |
880 | } | |
881 | ||
882 | static int pistachio_pinctrl_get_groups_count(struct pinctrl_dev *pctldev) | |
883 | { | |
884 | struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); | |
885 | ||
886 | return pctl->ngroups; | |
887 | } | |
888 | ||
889 | static const char *pistachio_pinctrl_get_group_name(struct pinctrl_dev *pctldev, | |
890 | unsigned group) | |
891 | { | |
892 | struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); | |
893 | ||
894 | return pctl->groups[group].name; | |
895 | } | |
896 | ||
897 | static int pistachio_pinctrl_get_group_pins(struct pinctrl_dev *pctldev, | |
898 | unsigned group, | |
899 | const unsigned **pins, | |
900 | unsigned *num_pins) | |
901 | { | |
902 | struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); | |
903 | ||
904 | *pins = &pctl->groups[group].pin; | |
905 | *num_pins = 1; | |
906 | ||
907 | return 0; | |
908 | } | |
909 | ||
910 | static const struct pinctrl_ops pistachio_pinctrl_ops = { | |
911 | .get_groups_count = pistachio_pinctrl_get_groups_count, | |
912 | .get_group_name = pistachio_pinctrl_get_group_name, | |
913 | .get_group_pins = pistachio_pinctrl_get_group_pins, | |
914 | .dt_node_to_map = pinconf_generic_dt_node_to_map_pin, | |
d32f7fd3 | 915 | .dt_free_map = pinctrl_utils_free_map, |
cefc03e5 AB |
916 | }; |
917 | ||
918 | static int pistachio_pinmux_get_functions_count(struct pinctrl_dev *pctldev) | |
919 | { | |
920 | struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); | |
921 | ||
922 | return pctl->nfunctions; | |
923 | } | |
924 | ||
925 | static const char * | |
926 | pistachio_pinmux_get_function_name(struct pinctrl_dev *pctldev, unsigned func) | |
927 | { | |
928 | struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); | |
929 | ||
930 | return pctl->functions[func].name; | |
931 | } | |
932 | ||
933 | static int pistachio_pinmux_get_function_groups(struct pinctrl_dev *pctldev, | |
934 | unsigned func, | |
935 | const char * const **groups, | |
936 | unsigned * const num_groups) | |
937 | { | |
938 | struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); | |
939 | ||
940 | *groups = pctl->functions[func].groups; | |
941 | *num_groups = pctl->functions[func].ngroups; | |
942 | ||
943 | return 0; | |
944 | } | |
945 | ||
946 | static int pistachio_pinmux_enable(struct pinctrl_dev *pctldev, | |
947 | unsigned func, unsigned group) | |
948 | { | |
949 | struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); | |
950 | const struct pistachio_pin_group *pg = &pctl->groups[group]; | |
951 | const struct pistachio_function *pf = &pctl->functions[func]; | |
952 | struct pinctrl_gpio_range *range; | |
953 | unsigned int i; | |
954 | u32 val; | |
955 | ||
956 | if (pg->mux_reg > 0) { | |
957 | for (i = 0; i < ARRAY_SIZE(pg->mux_option); i++) { | |
958 | if (pg->mux_option[i] == func) | |
959 | break; | |
960 | } | |
961 | if (i == ARRAY_SIZE(pg->mux_option)) { | |
962 | dev_err(pctl->dev, "Cannot mux pin %u to function %u\n", | |
963 | group, func); | |
964 | return -EINVAL; | |
965 | } | |
966 | ||
967 | val = pctl_readl(pctl, pg->mux_reg); | |
968 | val &= ~(pg->mux_mask << pg->mux_shift); | |
969 | val |= i << pg->mux_shift; | |
970 | pctl_writel(pctl, val, pg->mux_reg); | |
971 | ||
972 | if (pf->scenarios) { | |
973 | for (i = 0; i < pf->nscenarios; i++) { | |
974 | if (pf->scenarios[i] == group) | |
975 | break; | |
976 | } | |
977 | if (WARN_ON(i == pf->nscenarios)) | |
978 | return -EINVAL; | |
979 | ||
980 | val = pctl_readl(pctl, pf->scenario_reg); | |
981 | val &= ~(pf->scenario_mask << pf->scenario_shift); | |
982 | val |= i << pf->scenario_shift; | |
983 | pctl_writel(pctl, val, pf->scenario_reg); | |
984 | } | |
985 | } | |
986 | ||
987 | range = pinctrl_find_gpio_range_from_pin(pctl->pctldev, pg->pin); | |
988 | if (range) | |
3d18fb5c | 989 | gpio_disable(gpiochip_get_data(range->gc), pg->pin - range->pin_base); |
cefc03e5 AB |
990 | |
991 | return 0; | |
992 | } | |
993 | ||
994 | static const struct pinmux_ops pistachio_pinmux_ops = { | |
995 | .get_functions_count = pistachio_pinmux_get_functions_count, | |
996 | .get_function_name = pistachio_pinmux_get_function_name, | |
997 | .get_function_groups = pistachio_pinmux_get_function_groups, | |
998 | .set_mux = pistachio_pinmux_enable, | |
999 | }; | |
1000 | ||
1001 | static int pistachio_pinconf_get(struct pinctrl_dev *pctldev, unsigned pin, | |
1002 | unsigned long *config) | |
1003 | { | |
1004 | struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); | |
1005 | enum pin_config_param param = pinconf_to_config_param(*config); | |
1006 | u32 val, arg; | |
1007 | ||
1008 | switch (param) { | |
1009 | case PIN_CONFIG_INPUT_SCHMITT_ENABLE: | |
1010 | val = pctl_readl(pctl, PADS_SCHMITT_EN_REG(pin)); | |
1011 | arg = !!(val & PADS_SCHMITT_EN_BIT(pin)); | |
1012 | break; | |
1013 | case PIN_CONFIG_BIAS_HIGH_IMPEDANCE: | |
1014 | val = pctl_readl(pctl, PADS_PU_PD_REG(pin)) >> | |
1015 | PADS_PU_PD_SHIFT(pin); | |
1016 | arg = (val & PADS_PU_PD_MASK) == PADS_PU_PD_HIGHZ; | |
1017 | break; | |
1018 | case PIN_CONFIG_BIAS_PULL_UP: | |
1019 | val = pctl_readl(pctl, PADS_PU_PD_REG(pin)) >> | |
1020 | PADS_PU_PD_SHIFT(pin); | |
1021 | arg = (val & PADS_PU_PD_MASK) == PADS_PU_PD_UP; | |
1022 | break; | |
1023 | case PIN_CONFIG_BIAS_PULL_DOWN: | |
1024 | val = pctl_readl(pctl, PADS_PU_PD_REG(pin)) >> | |
1025 | PADS_PU_PD_SHIFT(pin); | |
1026 | arg = (val & PADS_PU_PD_MASK) == PADS_PU_PD_DOWN; | |
1027 | break; | |
1028 | case PIN_CONFIG_BIAS_BUS_HOLD: | |
1029 | val = pctl_readl(pctl, PADS_PU_PD_REG(pin)) >> | |
1030 | PADS_PU_PD_SHIFT(pin); | |
1031 | arg = (val & PADS_PU_PD_MASK) == PADS_PU_PD_BUS; | |
1032 | break; | |
1033 | case PIN_CONFIG_SLEW_RATE: | |
1034 | val = pctl_readl(pctl, PADS_SLEW_RATE_REG(pin)); | |
1035 | arg = !!(val & PADS_SLEW_RATE_BIT(pin)); | |
1036 | break; | |
1037 | case PIN_CONFIG_DRIVE_STRENGTH: | |
1038 | val = pctl_readl(pctl, PADS_DRIVE_STRENGTH_REG(pin)) >> | |
1039 | PADS_DRIVE_STRENGTH_SHIFT(pin); | |
1040 | switch (val & PADS_DRIVE_STRENGTH_MASK) { | |
1041 | case PADS_DRIVE_STRENGTH_2MA: | |
1042 | arg = 2; | |
1043 | break; | |
1044 | case PADS_DRIVE_STRENGTH_4MA: | |
1045 | arg = 4; | |
1046 | break; | |
1047 | case PADS_DRIVE_STRENGTH_8MA: | |
1048 | arg = 8; | |
1049 | break; | |
1050 | case PADS_DRIVE_STRENGTH_12MA: | |
1051 | default: | |
1052 | arg = 12; | |
1053 | break; | |
1054 | } | |
1055 | break; | |
1056 | default: | |
1057 | dev_dbg(pctl->dev, "Property %u not supported\n", param); | |
1058 | return -ENOTSUPP; | |
1059 | } | |
1060 | ||
1061 | *config = pinconf_to_config_packed(param, arg); | |
1062 | ||
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | static int pistachio_pinconf_set(struct pinctrl_dev *pctldev, unsigned pin, | |
1067 | unsigned long *configs, unsigned num_configs) | |
1068 | { | |
1069 | struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); | |
1070 | enum pin_config_param param; | |
1071 | u32 drv, val, arg; | |
1072 | unsigned int i; | |
1073 | ||
1074 | for (i = 0; i < num_configs; i++) { | |
1075 | param = pinconf_to_config_param(configs[i]); | |
1076 | arg = pinconf_to_config_argument(configs[i]); | |
1077 | ||
1078 | switch (param) { | |
1079 | case PIN_CONFIG_INPUT_SCHMITT_ENABLE: | |
1080 | val = pctl_readl(pctl, PADS_SCHMITT_EN_REG(pin)); | |
1081 | if (arg) | |
1082 | val |= PADS_SCHMITT_EN_BIT(pin); | |
1083 | else | |
1084 | val &= ~PADS_SCHMITT_EN_BIT(pin); | |
1085 | pctl_writel(pctl, val, PADS_SCHMITT_EN_REG(pin)); | |
1086 | break; | |
1087 | case PIN_CONFIG_BIAS_HIGH_IMPEDANCE: | |
1088 | val = pctl_readl(pctl, PADS_PU_PD_REG(pin)); | |
1089 | val &= ~(PADS_PU_PD_MASK << PADS_PU_PD_SHIFT(pin)); | |
1090 | val |= PADS_PU_PD_HIGHZ << PADS_PU_PD_SHIFT(pin); | |
1091 | pctl_writel(pctl, val, PADS_PU_PD_REG(pin)); | |
1092 | break; | |
1093 | case PIN_CONFIG_BIAS_PULL_UP: | |
1094 | val = pctl_readl(pctl, PADS_PU_PD_REG(pin)); | |
1095 | val &= ~(PADS_PU_PD_MASK << PADS_PU_PD_SHIFT(pin)); | |
1096 | val |= PADS_PU_PD_UP << PADS_PU_PD_SHIFT(pin); | |
1097 | pctl_writel(pctl, val, PADS_PU_PD_REG(pin)); | |
1098 | break; | |
1099 | case PIN_CONFIG_BIAS_PULL_DOWN: | |
1100 | val = pctl_readl(pctl, PADS_PU_PD_REG(pin)); | |
1101 | val &= ~(PADS_PU_PD_MASK << PADS_PU_PD_SHIFT(pin)); | |
1102 | val |= PADS_PU_PD_DOWN << PADS_PU_PD_SHIFT(pin); | |
1103 | pctl_writel(pctl, val, PADS_PU_PD_REG(pin)); | |
1104 | break; | |
1105 | case PIN_CONFIG_BIAS_BUS_HOLD: | |
1106 | val = pctl_readl(pctl, PADS_PU_PD_REG(pin)); | |
1107 | val &= ~(PADS_PU_PD_MASK << PADS_PU_PD_SHIFT(pin)); | |
1108 | val |= PADS_PU_PD_BUS << PADS_PU_PD_SHIFT(pin); | |
1109 | pctl_writel(pctl, val, PADS_PU_PD_REG(pin)); | |
1110 | break; | |
1111 | case PIN_CONFIG_SLEW_RATE: | |
1112 | val = pctl_readl(pctl, PADS_SLEW_RATE_REG(pin)); | |
1113 | if (arg) | |
1114 | val |= PADS_SLEW_RATE_BIT(pin); | |
1115 | else | |
1116 | val &= ~PADS_SLEW_RATE_BIT(pin); | |
1117 | pctl_writel(pctl, val, PADS_SLEW_RATE_REG(pin)); | |
1118 | break; | |
1119 | case PIN_CONFIG_DRIVE_STRENGTH: | |
1120 | val = pctl_readl(pctl, PADS_DRIVE_STRENGTH_REG(pin)); | |
1121 | val &= ~(PADS_DRIVE_STRENGTH_MASK << | |
1122 | PADS_DRIVE_STRENGTH_SHIFT(pin)); | |
1123 | switch (arg) { | |
1124 | case 2: | |
1125 | drv = PADS_DRIVE_STRENGTH_2MA; | |
1126 | break; | |
1127 | case 4: | |
1128 | drv = PADS_DRIVE_STRENGTH_4MA; | |
1129 | break; | |
1130 | case 8: | |
1131 | drv = PADS_DRIVE_STRENGTH_8MA; | |
1132 | break; | |
1133 | case 12: | |
1134 | drv = PADS_DRIVE_STRENGTH_12MA; | |
1135 | break; | |
1136 | default: | |
1137 | dev_err(pctl->dev, | |
1138 | "Drive strength %umA not supported\n", | |
1139 | arg); | |
1140 | return -EINVAL; | |
1141 | } | |
1142 | val |= drv << PADS_DRIVE_STRENGTH_SHIFT(pin); | |
1143 | pctl_writel(pctl, val, PADS_DRIVE_STRENGTH_REG(pin)); | |
1144 | break; | |
1145 | default: | |
1146 | dev_err(pctl->dev, "Property %u not supported\n", | |
1147 | param); | |
1148 | return -ENOTSUPP; | |
1149 | } | |
1150 | } | |
1151 | ||
1152 | return 0; | |
1153 | } | |
1154 | ||
1155 | static const struct pinconf_ops pistachio_pinconf_ops = { | |
1156 | .pin_config_get = pistachio_pinconf_get, | |
1157 | .pin_config_set = pistachio_pinconf_set, | |
1158 | .is_generic = true, | |
1159 | }; | |
1160 | ||
1161 | static struct pinctrl_desc pistachio_pinctrl_desc = { | |
1162 | .name = "pistachio-pinctrl", | |
1163 | .pctlops = &pistachio_pinctrl_ops, | |
1164 | .pmxops = &pistachio_pinmux_ops, | |
1165 | .confops = &pistachio_pinconf_ops, | |
1166 | }; | |
1167 | ||
cefc03e5 AB |
1168 | static int pistachio_gpio_get_direction(struct gpio_chip *chip, unsigned offset) |
1169 | { | |
3d18fb5c | 1170 | struct pistachio_gpio_bank *bank = gpiochip_get_data(chip); |
cefc03e5 AB |
1171 | |
1172 | return !(gpio_readl(bank, GPIO_OUTPUT_EN) & BIT(offset)); | |
1173 | } | |
1174 | ||
1175 | static int pistachio_gpio_get(struct gpio_chip *chip, unsigned offset) | |
1176 | { | |
3d18fb5c | 1177 | struct pistachio_gpio_bank *bank = gpiochip_get_data(chip); |
cefc03e5 AB |
1178 | u32 reg; |
1179 | ||
1180 | if (gpio_readl(bank, GPIO_OUTPUT_EN) & BIT(offset)) | |
1181 | reg = GPIO_OUTPUT; | |
1182 | else | |
1183 | reg = GPIO_INPUT; | |
1184 | ||
1185 | return !!(gpio_readl(bank, reg) & BIT(offset)); | |
1186 | } | |
1187 | ||
1188 | static void pistachio_gpio_set(struct gpio_chip *chip, unsigned offset, | |
1189 | int value) | |
1190 | { | |
3d18fb5c | 1191 | struct pistachio_gpio_bank *bank = gpiochip_get_data(chip); |
cefc03e5 AB |
1192 | |
1193 | gpio_mask_writel(bank, GPIO_OUTPUT, offset, !!value); | |
1194 | } | |
1195 | ||
1196 | static int pistachio_gpio_direction_input(struct gpio_chip *chip, | |
1197 | unsigned offset) | |
1198 | { | |
3d18fb5c | 1199 | struct pistachio_gpio_bank *bank = gpiochip_get_data(chip); |
cefc03e5 AB |
1200 | |
1201 | gpio_mask_writel(bank, GPIO_OUTPUT_EN, offset, 0); | |
1202 | gpio_enable(bank, offset); | |
1203 | ||
1204 | return 0; | |
1205 | } | |
1206 | ||
1207 | static int pistachio_gpio_direction_output(struct gpio_chip *chip, | |
1208 | unsigned offset, int value) | |
1209 | { | |
3d18fb5c | 1210 | struct pistachio_gpio_bank *bank = gpiochip_get_data(chip); |
cefc03e5 AB |
1211 | |
1212 | pistachio_gpio_set(chip, offset, value); | |
1213 | gpio_mask_writel(bank, GPIO_OUTPUT_EN, offset, 1); | |
1214 | gpio_enable(bank, offset); | |
1215 | ||
1216 | return 0; | |
1217 | } | |
1218 | ||
1219 | static void pistachio_gpio_irq_ack(struct irq_data *data) | |
1220 | { | |
1221 | struct pistachio_gpio_bank *bank = irqd_to_bank(data); | |
1222 | ||
1223 | gpio_mask_writel(bank, GPIO_INTERRUPT_STATUS, data->hwirq, 0); | |
1224 | } | |
1225 | ||
1226 | static void pistachio_gpio_irq_mask(struct irq_data *data) | |
1227 | { | |
1228 | struct pistachio_gpio_bank *bank = irqd_to_bank(data); | |
1229 | ||
1230 | gpio_mask_writel(bank, GPIO_INTERRUPT_EN, data->hwirq, 0); | |
1231 | } | |
1232 | ||
1233 | static void pistachio_gpio_irq_unmask(struct irq_data *data) | |
1234 | { | |
1235 | struct pistachio_gpio_bank *bank = irqd_to_bank(data); | |
1236 | ||
1237 | gpio_mask_writel(bank, GPIO_INTERRUPT_EN, data->hwirq, 1); | |
1238 | } | |
1239 | ||
1240 | static unsigned int pistachio_gpio_irq_startup(struct irq_data *data) | |
1241 | { | |
1242 | struct gpio_chip *chip = irq_data_get_irq_chip_data(data); | |
1243 | ||
1244 | pistachio_gpio_direction_input(chip, data->hwirq); | |
1245 | pistachio_gpio_irq_unmask(data); | |
1246 | ||
1247 | return 0; | |
1248 | } | |
1249 | ||
1250 | static int pistachio_gpio_irq_set_type(struct irq_data *data, unsigned int type) | |
1251 | { | |
1252 | struct pistachio_gpio_bank *bank = irqd_to_bank(data); | |
1253 | ||
1254 | switch (type & IRQ_TYPE_SENSE_MASK) { | |
1255 | case IRQ_TYPE_EDGE_RISING: | |
1256 | gpio_mask_writel(bank, GPIO_INPUT_POLARITY, data->hwirq, 1); | |
1257 | gpio_mask_writel(bank, GPIO_INTERRUPT_TYPE, data->hwirq, | |
1258 | GPIO_INTERRUPT_TYPE_EDGE); | |
1259 | gpio_mask_writel(bank, GPIO_INTERRUPT_EDGE, data->hwirq, | |
1260 | GPIO_INTERRUPT_EDGE_SINGLE); | |
1261 | break; | |
1262 | case IRQ_TYPE_EDGE_FALLING: | |
1263 | gpio_mask_writel(bank, GPIO_INPUT_POLARITY, data->hwirq, 0); | |
1264 | gpio_mask_writel(bank, GPIO_INTERRUPT_TYPE, data->hwirq, | |
1265 | GPIO_INTERRUPT_TYPE_EDGE); | |
1266 | gpio_mask_writel(bank, GPIO_INTERRUPT_EDGE, data->hwirq, | |
1267 | GPIO_INTERRUPT_EDGE_SINGLE); | |
1268 | break; | |
1269 | case IRQ_TYPE_EDGE_BOTH: | |
1270 | gpio_mask_writel(bank, GPIO_INTERRUPT_TYPE, data->hwirq, | |
1271 | GPIO_INTERRUPT_TYPE_EDGE); | |
1272 | gpio_mask_writel(bank, GPIO_INTERRUPT_EDGE, data->hwirq, | |
1273 | GPIO_INTERRUPT_EDGE_DUAL); | |
1274 | break; | |
1275 | case IRQ_TYPE_LEVEL_HIGH: | |
1276 | gpio_mask_writel(bank, GPIO_INPUT_POLARITY, data->hwirq, 1); | |
1277 | gpio_mask_writel(bank, GPIO_INTERRUPT_TYPE, data->hwirq, | |
1278 | GPIO_INTERRUPT_TYPE_LEVEL); | |
1279 | break; | |
1280 | case IRQ_TYPE_LEVEL_LOW: | |
1281 | gpio_mask_writel(bank, GPIO_INPUT_POLARITY, data->hwirq, 0); | |
1282 | gpio_mask_writel(bank, GPIO_INTERRUPT_TYPE, data->hwirq, | |
1283 | GPIO_INTERRUPT_TYPE_LEVEL); | |
1284 | break; | |
1285 | default: | |
1286 | return -EINVAL; | |
1287 | } | |
1288 | ||
1289 | if (type & IRQ_TYPE_LEVEL_MASK) | |
7c51173a | 1290 | irq_set_handler_locked(data, handle_level_irq); |
cefc03e5 | 1291 | else |
7c51173a | 1292 | irq_set_handler_locked(data, handle_edge_irq); |
cefc03e5 AB |
1293 | |
1294 | return 0; | |
1295 | } | |
1296 | ||
bd0b9ac4 | 1297 | static void pistachio_gpio_irq_handler(struct irq_desc *desc) |
cefc03e5 | 1298 | { |
f43ebaf1 | 1299 | struct gpio_chip *gc = irq_desc_get_handler_data(desc); |
3d18fb5c | 1300 | struct pistachio_gpio_bank *bank = gpiochip_get_data(gc); |
bd0b9ac4 | 1301 | struct irq_chip *chip = irq_desc_get_chip(desc); |
cefc03e5 AB |
1302 | unsigned long pending; |
1303 | unsigned int pin; | |
1304 | ||
1305 | chained_irq_enter(chip, desc); | |
1306 | pending = gpio_readl(bank, GPIO_INTERRUPT_STATUS) & | |
1307 | gpio_readl(bank, GPIO_INTERRUPT_EN); | |
1308 | for_each_set_bit(pin, &pending, 16) | |
f0fbe7bc | 1309 | generic_handle_irq(irq_linear_revmap(gc->irq.domain, pin)); |
cefc03e5 AB |
1310 | chained_irq_exit(chip, desc); |
1311 | } | |
1312 | ||
1313 | #define GPIO_BANK(_bank, _pin_base, _npins) \ | |
1314 | { \ | |
1315 | .pin_base = _pin_base, \ | |
1316 | .npins = _npins, \ | |
1317 | .gpio_chip = { \ | |
1318 | .label = "GPIO" #_bank, \ | |
98c85d58 JG |
1319 | .request = gpiochip_generic_request, \ |
1320 | .free = gpiochip_generic_free, \ | |
cefc03e5 AB |
1321 | .get_direction = pistachio_gpio_get_direction, \ |
1322 | .direction_input = pistachio_gpio_direction_input, \ | |
1323 | .direction_output = pistachio_gpio_direction_output, \ | |
1324 | .get = pistachio_gpio_get, \ | |
1325 | .set = pistachio_gpio_set, \ | |
1326 | .base = _pin_base, \ | |
1327 | .ngpio = _npins, \ | |
1328 | }, \ | |
1329 | .irq_chip = { \ | |
1330 | .name = "GPIO" #_bank, \ | |
1331 | .irq_startup = pistachio_gpio_irq_startup, \ | |
1332 | .irq_ack = pistachio_gpio_irq_ack, \ | |
1333 | .irq_mask = pistachio_gpio_irq_mask, \ | |
1334 | .irq_unmask = pistachio_gpio_irq_unmask, \ | |
1335 | .irq_set_type = pistachio_gpio_irq_set_type, \ | |
1336 | }, \ | |
1337 | } | |
1338 | ||
1339 | static struct pistachio_gpio_bank pistachio_gpio_banks[] = { | |
1340 | GPIO_BANK(0, PISTACHIO_PIN_MFIO(0), 16), | |
1341 | GPIO_BANK(1, PISTACHIO_PIN_MFIO(16), 16), | |
1342 | GPIO_BANK(2, PISTACHIO_PIN_MFIO(32), 16), | |
1343 | GPIO_BANK(3, PISTACHIO_PIN_MFIO(48), 16), | |
1344 | GPIO_BANK(4, PISTACHIO_PIN_MFIO(64), 16), | |
1345 | GPIO_BANK(5, PISTACHIO_PIN_MFIO(80), 10), | |
1346 | }; | |
1347 | ||
1348 | static int pistachio_gpio_register(struct pistachio_pinctrl *pctl) | |
1349 | { | |
1350 | struct device_node *node = pctl->dev->of_node; | |
1351 | struct pistachio_gpio_bank *bank; | |
1352 | unsigned int i; | |
1353 | int irq, ret = 0; | |
1354 | ||
1355 | for (i = 0; i < pctl->nbanks; i++) { | |
1356 | char child_name[sizeof("gpioXX")]; | |
1357 | struct device_node *child; | |
1358 | ||
1359 | snprintf(child_name, sizeof(child_name), "gpio%d", i); | |
1360 | child = of_get_child_by_name(node, child_name); | |
1361 | if (!child) { | |
1362 | dev_err(pctl->dev, "No node for bank %u\n", i); | |
1363 | ret = -ENODEV; | |
1364 | goto err; | |
1365 | } | |
1366 | ||
1367 | if (!of_find_property(child, "gpio-controller", NULL)) { | |
1368 | dev_err(pctl->dev, | |
1369 | "No gpio-controller property for bank %u\n", i); | |
1370 | ret = -ENODEV; | |
1371 | goto err; | |
1372 | } | |
1373 | ||
1374 | irq = irq_of_parse_and_map(child, 0); | |
1375 | if (irq < 0) { | |
1376 | dev_err(pctl->dev, "No IRQ for bank %u: %d\n", i, irq); | |
1377 | ret = irq; | |
1378 | goto err; | |
1379 | } | |
1380 | ||
1381 | bank = &pctl->gpio_banks[i]; | |
1382 | bank->pctl = pctl; | |
1383 | bank->base = pctl->base + GPIO_BANK_BASE(i); | |
1384 | ||
58383c78 | 1385 | bank->gpio_chip.parent = pctl->dev; |
cefc03e5 | 1386 | bank->gpio_chip.of_node = child; |
3d18fb5c | 1387 | ret = gpiochip_add_data(&bank->gpio_chip, bank); |
cefc03e5 AB |
1388 | if (ret < 0) { |
1389 | dev_err(pctl->dev, "Failed to add GPIO chip %u: %d\n", | |
1390 | i, ret); | |
1391 | goto err; | |
1392 | } | |
1393 | ||
1394 | ret = gpiochip_irqchip_add(&bank->gpio_chip, &bank->irq_chip, | |
1395 | 0, handle_level_irq, IRQ_TYPE_NONE); | |
1396 | if (ret < 0) { | |
1397 | dev_err(pctl->dev, "Failed to add IRQ chip %u: %d\n", | |
1398 | i, ret); | |
1399 | gpiochip_remove(&bank->gpio_chip); | |
1400 | goto err; | |
1401 | } | |
1402 | gpiochip_set_chained_irqchip(&bank->gpio_chip, &bank->irq_chip, | |
1403 | irq, pistachio_gpio_irq_handler); | |
1404 | ||
1405 | ret = gpiochip_add_pin_range(&bank->gpio_chip, | |
1406 | dev_name(pctl->dev), 0, | |
1407 | bank->pin_base, bank->npins); | |
1408 | if (ret < 0) { | |
1409 | dev_err(pctl->dev, "Failed to add GPIO range %u: %d\n", | |
1410 | i, ret); | |
1411 | gpiochip_remove(&bank->gpio_chip); | |
1412 | goto err; | |
1413 | } | |
1414 | } | |
1415 | ||
1416 | return 0; | |
1417 | err: | |
1418 | for (; i > 0; i--) { | |
1419 | bank = &pctl->gpio_banks[i - 1]; | |
1420 | gpiochip_remove(&bank->gpio_chip); | |
1421 | } | |
1422 | return ret; | |
1423 | } | |
1424 | ||
1425 | static const struct of_device_id pistachio_pinctrl_of_match[] = { | |
1426 | { .compatible = "img,pistachio-system-pinctrl", }, | |
1427 | { }, | |
1428 | }; | |
1429 | ||
1430 | static int pistachio_pinctrl_probe(struct platform_device *pdev) | |
1431 | { | |
1432 | struct pistachio_pinctrl *pctl; | |
1433 | struct resource *res; | |
cefc03e5 AB |
1434 | |
1435 | pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL); | |
1436 | if (!pctl) | |
1437 | return -ENOMEM; | |
1438 | pctl->dev = &pdev->dev; | |
1439 | dev_set_drvdata(&pdev->dev, pctl); | |
1440 | ||
1441 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
1442 | pctl->base = devm_ioremap_resource(&pdev->dev, res); | |
1443 | if (IS_ERR(pctl->base)) | |
1444 | return PTR_ERR(pctl->base); | |
1445 | ||
1446 | pctl->pins = pistachio_pins; | |
1447 | pctl->npins = ARRAY_SIZE(pistachio_pins); | |
1448 | pctl->functions = pistachio_functions; | |
1449 | pctl->nfunctions = ARRAY_SIZE(pistachio_functions); | |
1450 | pctl->groups = pistachio_groups; | |
1451 | pctl->ngroups = ARRAY_SIZE(pistachio_groups); | |
1452 | pctl->gpio_banks = pistachio_gpio_banks; | |
1453 | pctl->nbanks = ARRAY_SIZE(pistachio_gpio_banks); | |
1454 | ||
1455 | pistachio_pinctrl_desc.pins = pctl->pins; | |
1456 | pistachio_pinctrl_desc.npins = pctl->npins; | |
1457 | ||
082ec906 LD |
1458 | pctl->pctldev = devm_pinctrl_register(&pdev->dev, &pistachio_pinctrl_desc, |
1459 | pctl); | |
323de9ef | 1460 | if (IS_ERR(pctl->pctldev)) { |
cefc03e5 | 1461 | dev_err(&pdev->dev, "Failed to register pinctrl device\n"); |
323de9ef | 1462 | return PTR_ERR(pctl->pctldev); |
cefc03e5 AB |
1463 | } |
1464 | ||
b120a3c2 | 1465 | return pistachio_gpio_register(pctl); |
cefc03e5 AB |
1466 | } |
1467 | ||
1468 | static struct platform_driver pistachio_pinctrl_driver = { | |
1469 | .driver = { | |
1470 | .name = "pistachio-pinctrl", | |
1471 | .of_match_table = pistachio_pinctrl_of_match, | |
1472 | .suppress_bind_attrs = true, | |
1473 | }, | |
1474 | .probe = pistachio_pinctrl_probe, | |
1475 | }; | |
1476 | ||
1477 | static int __init pistachio_pinctrl_register(void) | |
1478 | { | |
1479 | return platform_driver_register(&pistachio_pinctrl_driver); | |
1480 | } | |
1481 | arch_initcall(pistachio_pinctrl_register); |