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8#include <common.h>
9#include <dm.h>
10#include <asm/global_data.h>
11#include <dm/pinctrl.h>
12#include <linux/bitops.h>
13#include <linux/io.h>
14
15#include "pinctrl-mtmips-common.h"
16
17DECLARE_GLOBAL_DATA_PTR;
18
19#define AGPIO_OFS 0
20#define GPIOMODE1_OFS 0x24
21#define GPIOMODE2_OFS 0x28
22
23#define EPHY4_1_PAD_SHIFT 17
24#define EPHY4_1_PAD_MASK 0x0f
25#define EPHY0_SHIFT 16
26#define RF_OLT_MODE_SHIFT 12
27#define N9_EINT_SRC_SHIFT 9
28#define WLED_OD_SHIFT 8
29#define REF_CLKO_PAD_SHIFT 4
30#define I2S_CLK_PAD_SHIFT 3
31#define I2S_WS_PAD_SHIFT 2
32#define I2S_SDO_PAD_SHIFT 1
33#define I2S_SDI_PAD_SHIFT 0
34
35#define GM4_MASK 3
36
37#define P4LED_K_SHIFT 26
38#define P3LED_K_SHIFT 24
39#define P2LED_K_SHIFT 22
40#define P1LED_K_SHIFT 20
41#define P0LED_K_SHIFT 18
42#define WLED_K_SHIFT 16
43#define P4LED_A_SHIFT 10
44#define P3LED_A_SHIFT 8
45#define P2LED_A_SHIFT 6
46#define P1LED_A_SHIFT 4
47#define P0LED_A_SHIFT 2
48#define WLED_A_SHIFT 0
49
50#define PWM1_SHIFT 30
51#define PWM0_SHIFT 28
52#define UART2_SHIFT 26
53#define UART1_SHIFT 24
54#define I2C_SHIFT 20
55#define REFCLK_SHIFT 18
56#define PERST_SHIFT 16
57#define ESD_SHIFT 15
58#define WDT_SHIFT 14
59#define SPI_SHIFT 12
60#define SDMODE_SHIFT 10
61#define UART0_SHIFT 8
62#define I2S_SHIFT 6
63#define SPI_CS1_SHIFT 4
64#define SPIS_SHIFT 2
65#define GPIO0_SHIFT 0
66
67#define PAD_PU_G0_REG 0x00
68#define PAD_PU_G1_REG 0x04
69#define PAD_PD_G0_REG 0x10
70#define PAD_PD_G1_REG 0x14
71#define PAD_SR_G0_REG 0x20
72#define PAD_SR_G1_REG 0x24
73#define PAD_SMT_G0_REG 0x30
74#define PAD_SMT_G1_REG 0x34
75#define PAD_E2_G0_REG 0x40
76#define PAD_E2_G1_REG 0x44
77#define PAD_E4_G0_REG 0x50
78#define PAD_E4_G1_REG 0x54
79#define PAD_E8_G0_REG 0x60
80#define PAD_E8_G1_REG 0x64
81
82#define PIN_CONFIG_DRIVE_STRENGTH_28 (PIN_CONFIG_END + 1)
83#define PIN_CONFIG_DRIVE_STRENGTH_4G (PIN_CONFIG_END + 2)
84
85struct mt7628_pinctrl_priv {
86 struct mtmips_pinctrl_priv mp;
87
88 void __iomem *pcbase;
89};
90
91#if CONFIG_IS_ENABLED(PINMUX)
92static const struct mtmips_pmx_func ephy4_1_pad_grp[] = {
93 FUNC("digital", 0xf),
94 FUNC("analog", 0),
95};
96
97static const struct mtmips_pmx_func ephy0_grp[] = {
98 FUNC("disable", 1),
99 FUNC("enable", 0),
100};
101
102static const struct mtmips_pmx_func rf_olt_grp[] = {
103 FUNC("enable", 1),
104 FUNC("disable", 0),
105};
106
107static const struct mtmips_pmx_func n9_eint_src_grp[] = {
108 FUNC("gpio", 1),
109 FUNC("utif", 0),
110};
111
112static const struct mtmips_pmx_func wlen_od_grp[] = {
113 FUNC("enable", 1),
114 FUNC("disable", 0),
115};
116
117static const struct mtmips_pmx_func ref_clko_grp[] = {
118 FUNC("digital", 1),
119 FUNC("analog", 0),
120};
121
122static const struct mtmips_pmx_func i2s_clk_grp[] = {
123 FUNC("digital", 1),
124 FUNC("analog", 0),
125};
126
127static const struct mtmips_pmx_func i2s_ws_grp[] = {
128 FUNC("digital", 1),
129 FUNC("analog", 0),
130};
131
132static const struct mtmips_pmx_func i2s_sdo_grp[] = {
133 FUNC("digital", 1),
134 FUNC("analog", 0),
135};
136
137static const struct mtmips_pmx_func i2s_sdi_grp[] = {
138 FUNC("digital", 1),
139 FUNC("analog", 0),
140};
141
142static const struct mtmips_pmx_func pwm1_grp[] = {
143 FUNC("sdxc d6", 3),
144 FUNC("utif", 2),
145 FUNC("gpio", 1),
146 FUNC("pwm1", 0),
147};
148
149static const struct mtmips_pmx_func pwm0_grp[] = {
150 FUNC("sdxc d7", 3),
151 FUNC("utif", 2),
152 FUNC("gpio", 1),
153 FUNC("pwm0", 0),
154};
155
156static const struct mtmips_pmx_func uart2_grp[] = {
157 FUNC("sdxc d5 d4", 3),
158 FUNC("pwm", 2),
159 FUNC("gpio", 1),
160 FUNC("uart2", 0),
161};
162
163static const struct mtmips_pmx_func uart1_grp[] = {
164 FUNC("sw_r", 3),
165 FUNC("pwm", 2),
166 FUNC("gpio", 1),
167 FUNC("uart1", 0),
168};
169
170static const struct mtmips_pmx_func i2c_grp[] = {
171 FUNC("-", 3),
172 FUNC("debug", 2),
173 FUNC("gpio", 1),
174 FUNC("i2c", 0),
175};
176
177static const struct mtmips_pmx_func refclk_grp[] = {
178 FUNC("gpio", 1),
179 FUNC("refclk", 0),
180};
181
182static const struct mtmips_pmx_func perst_grp[] = {
183 FUNC("gpio", 1),
184 FUNC("perst", 0),
185};
186
187static const struct mtmips_pmx_func esd_grp[] = {
188 FUNC("router", 1),
189 FUNC("iot", 0),
190};
191
192static const struct mtmips_pmx_func wdt_grp[] = {
193 FUNC("gpio", 1),
194 FUNC("wdt", 0),
195};
196
197static const struct mtmips_pmx_func spi_grp[] = {
198 FUNC("gpio", 1),
199 FUNC("spi", 0),
200};
201
202static const struct mtmips_pmx_func sd_mode_grp[] = {
203 FUNC("n9 jtag", 3),
204 FUNC("utif1", 2),
205 FUNC("gpio", 1),
206 FUNC("sdxc", 0),
207};
208
209static const struct mtmips_pmx_func uart0_grp[] = {
210 FUNC("-", 3),
211 FUNC("-", 2),
212 FUNC("gpio", 1),
213 FUNC("uart0", 0),
214};
215
216static const struct mtmips_pmx_func i2s_grp[] = {
217 FUNC("antenna", 3),
218 FUNC("pcm", 2),
219 FUNC("gpio", 1),
220 FUNC("i2s", 0),
221};
222
223static const struct mtmips_pmx_func spi_cs1_grp[] = {
224 FUNC("-", 3),
225 FUNC("refclk", 2),
226 FUNC("gpio", 1),
227 FUNC("spi cs1", 0),
228};
229
230static const struct mtmips_pmx_func spis_grp[] = {
231 FUNC("pwm_uart2", 3),
232 FUNC("utif", 2),
233 FUNC("gpio", 1),
234 FUNC("spis", 0),
235};
236
237static const struct mtmips_pmx_func gpio0_grp[] = {
238 FUNC("perst", 3),
239 FUNC("refclk", 2),
240 FUNC("gpio", 1),
241 FUNC("gpio0", 0),
242};
243
244static const struct mtmips_pmx_func wled_a_grp[] = {
245 FUNC("-", 3),
246 FUNC("-", 2),
247 FUNC("gpio", 1),
248 FUNC("led", 0),
249};
250
251static const struct mtmips_pmx_func p0led_a_grp[] = {
252 FUNC("jtag", 3),
253 FUNC("rsvd", 2),
254 FUNC("gpio", 1),
255 FUNC("led", 0),
256};
257
258static const struct mtmips_pmx_func p1led_a_grp[] = {
259 FUNC("jtag", 3),
260 FUNC("utif", 2),
261 FUNC("gpio", 1),
262 FUNC("led", 0),
263};
264
265static const struct mtmips_pmx_func p2led_a_grp[] = {
266 FUNC("jtag", 3),
267 FUNC("utif", 2),
268 FUNC("gpio", 1),
269 FUNC("led", 0),
270};
271
272static const struct mtmips_pmx_func p3led_a_grp[] = {
273 FUNC("jtag", 3),
274 FUNC("utif", 2),
275 FUNC("gpio", 1),
276 FUNC("led", 0),
277};
278
279static const struct mtmips_pmx_func p4led_a_grp[] = {
280 FUNC("jtag", 3),
281 FUNC("utif", 2),
282 FUNC("gpio", 1),
283 FUNC("led", 0),
284};
285
286static const struct mtmips_pmx_func wled_k_grp[] = {
287 FUNC("-", 3),
288 FUNC("-", 2),
289 FUNC("gpio", 1),
290 FUNC("led", 0),
291};
292
293static const struct mtmips_pmx_func p0led_k_grp[] = {
294 FUNC("jtag", 3),
295 FUNC("rsvd", 2),
296 FUNC("gpio", 1),
297 FUNC("led", 0),
298};
299
300static const struct mtmips_pmx_func p1led_k_grp[] = {
301 FUNC("jtag", 3),
302 FUNC("utif", 2),
303 FUNC("gpio", 1),
304 FUNC("led", 0),
305};
306
307static const struct mtmips_pmx_func p2led_k_grp[] = {
308 FUNC("jtag", 3),
309 FUNC("utif", 2),
310 FUNC("gpio", 1),
311 FUNC("led", 0),
312};
313
314static const struct mtmips_pmx_func p3led_k_grp[] = {
315 FUNC("jtag", 3),
316 FUNC("utif", 2),
317 FUNC("gpio", 1),
318 FUNC("led", 0),
319};
320
321static const struct mtmips_pmx_func p4led_k_grp[] = {
322 FUNC("jtag", 3),
323 FUNC("utif", 2),
324 FUNC("gpio", 1),
325 FUNC("led", 0),
326};
327
328static const struct mtmips_pmx_group mt7628_pinmux_data[] = {
329 GRP("ephy4_1_pad", ephy4_1_pad_grp, AGPIO_OFS, EPHY4_1_PAD_SHIFT,
330 EPHY4_1_PAD_MASK),
331 GRP("ephy0", ephy0_grp, AGPIO_OFS, EPHY0_SHIFT, 1),
332 GRP("rf_olt", rf_olt_grp, AGPIO_OFS, RF_OLT_MODE_SHIFT, 1),
333 GRP("n9_eint_src", n9_eint_src_grp, AGPIO_OFS, N9_EINT_SRC_SHIFT, 1),
334 GRP("wlen_od", wlen_od_grp, AGPIO_OFS, WLED_OD_SHIFT, 1),
335 GRP("ref_clko_pad", ref_clko_grp, AGPIO_OFS, REF_CLKO_PAD_SHIFT, 1),
336 GRP("i2s_clk_pad", i2s_clk_grp, AGPIO_OFS, I2S_CLK_PAD_SHIFT, 1),
337 GRP("i2s_ws_pad", i2s_ws_grp, AGPIO_OFS, I2S_WS_PAD_SHIFT, 1),
338 GRP("i2s_sdo_pad", i2s_sdo_grp, AGPIO_OFS, I2S_SDO_PAD_SHIFT, 1),
339 GRP("i2s_sdi_pad", i2s_sdi_grp, AGPIO_OFS, I2S_SDI_PAD_SHIFT, 1),
340 GRP("pwm1", pwm1_grp, GPIOMODE1_OFS, PWM1_SHIFT, GM4_MASK),
341 GRP("pwm0", pwm0_grp, GPIOMODE1_OFS, PWM0_SHIFT, GM4_MASK),
342 GRP("uart2", uart2_grp, GPIOMODE1_OFS, UART2_SHIFT, GM4_MASK),
343 GRP("uart1", uart1_grp, GPIOMODE1_OFS, UART1_SHIFT, GM4_MASK),
344 GRP("i2c", i2c_grp, GPIOMODE1_OFS, I2C_SHIFT, GM4_MASK),
345 GRP("refclk", refclk_grp, GPIOMODE1_OFS, REFCLK_SHIFT, 1),
346 GRP("perst", perst_grp, GPIOMODE1_OFS, PERST_SHIFT, 1),
347 GRP("sd router", esd_grp, GPIOMODE1_OFS, ESD_SHIFT, 1),
348 GRP("wdt", wdt_grp, GPIOMODE1_OFS, WDT_SHIFT, 1),
349 GRP("spi", spi_grp, GPIOMODE1_OFS, SPI_SHIFT, 1),
350 GRP("sdmode", sd_mode_grp, GPIOMODE1_OFS, SDMODE_SHIFT, GM4_MASK),
351 GRP("uart0", uart0_grp, GPIOMODE1_OFS, UART0_SHIFT, GM4_MASK),
352 GRP("i2s", i2s_grp, GPIOMODE1_OFS, I2S_SHIFT, GM4_MASK),
353 GRP("spi cs1", spi_cs1_grp, GPIOMODE1_OFS, SPI_CS1_SHIFT, GM4_MASK),
354 GRP("spis", spis_grp, GPIOMODE1_OFS, SPIS_SHIFT, GM4_MASK),
355 GRP("gpio0", gpio0_grp, GPIOMODE1_OFS, GPIO0_SHIFT, GM4_MASK),
356 GRP("wled_a", wled_a_grp, GPIOMODE2_OFS, WLED_A_SHIFT, GM4_MASK),
357 GRP("p0led_a", p0led_a_grp, GPIOMODE2_OFS, P0LED_A_SHIFT, GM4_MASK),
358 GRP("p1led_a", p1led_a_grp, GPIOMODE2_OFS, P1LED_A_SHIFT, GM4_MASK),
359 GRP("p2led_a", p2led_a_grp, GPIOMODE2_OFS, P2LED_A_SHIFT, GM4_MASK),
360 GRP("p3led_a", p3led_a_grp, GPIOMODE2_OFS, P3LED_A_SHIFT, GM4_MASK),
361 GRP("p4led_a", p4led_a_grp, GPIOMODE2_OFS, P4LED_A_SHIFT, GM4_MASK),
362 GRP("wled_k", wled_k_grp, GPIOMODE2_OFS, WLED_K_SHIFT, GM4_MASK),
363 GRP("p0led_k", p0led_k_grp, GPIOMODE2_OFS, P0LED_K_SHIFT, GM4_MASK),
364 GRP("p1led_k", p1led_k_grp, GPIOMODE2_OFS, P1LED_K_SHIFT, GM4_MASK),
365 GRP("p2led_k", p2led_k_grp, GPIOMODE2_OFS, P2LED_K_SHIFT, GM4_MASK),
366 GRP("p3led_k", p3led_k_grp, GPIOMODE2_OFS, P3LED_K_SHIFT, GM4_MASK),
367 GRP("p4led_k", p4led_k_grp, GPIOMODE2_OFS, P4LED_K_SHIFT, GM4_MASK),
368};
369
370static int mt7628_get_groups_count(struct udevice *dev)
371{
372 return ARRAY_SIZE(mt7628_pinmux_data);
373}
374
375static const char *mt7628_get_group_name(struct udevice *dev,
376 unsigned int selector)
377{
378 return mt7628_pinmux_data[selector].name;
379}
380#endif
381
382#if CONFIG_IS_ENABLED(PINCONF)
383static const struct pinconf_param mt7628_conf_params[] = {
384 { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
385 { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
386 { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
387 { "input-schmitt-enable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 1 },
388 { "input-schmitt-disable", PIN_CONFIG_INPUT_SCHMITT_ENABLE, 0 },
389 { "drive-strength-28", PIN_CONFIG_DRIVE_STRENGTH_28, 0 },
390 { "drive-strength-4g", PIN_CONFIG_DRIVE_STRENGTH_4G, 0 },
391 { "slew-rate", PIN_CONFIG_SLEW_RATE, 0 },
392};
393
394static const char *const mt7628_pins[] = {
395 "i2s_sdi",
396 "i2s_sdo",
397 "i2s_ws",
398 "i2s_clk",
399 "i2s_sclk",
400 "i2c_sd",
401 "spi_cs1",
402 "spi_clk",
403 "spi_mosi",
404 "spi_miso",
405 "spi_cs0",
406 "gpio0",
407 "uart0_txd",
408 "uart0_rxd",
409 "spis_cs",
410 "spis_clk",
411 "spis_miso",
412 "spis_mosi",
413 "pwm_ch0",
414 "pwm_ch1",
415 "uart2_txd",
416 "uart2_rxd",
417 "sd_wp",
418 "sd_cd",
419 "sd_d1",
420 "sd_d0",
421 "sd_clk",
422 "sd_cmd",
423 "sd_d3",
424 "sd_d2",
425 "ephy_led4_k",
426 "ephy_led3_k",
427 "ephy_led2_k",
428 "ephy_led1_k",
429 "ephy_led0_k",
430 "wled_k",
431 "perst_n",
432 "co_clko",
433 "wdt",
434 "ephy_led4_a",
435 "ephy_led3_a",
436 "ephy_led2_a",
437 "ephy_led1_a",
438 "ephy_led0_a",
439 "wled_a",
440 "uart1_txd",
441 "uart1_rxd",
442};
443
444static const u32 mt7628_drv_strength_28_tbl[] = {2, 4, 6, 8};
445static const u32 mt7628_drv_strength_4g_tbl[] = {4, 8, 12, 16};
446
447static int mt7628_set_drv_strength(void __iomem *base, u32 val, u32 bit,
448 const u32 tbl[], u32 reg_lo, u32 reg_hi)
449{
450 int i;
451
452 for (i = 0; i < 4; i++)
453 if (tbl[i] == val)
454 break;
455
456 if (i >= 4)
457 return -EINVAL;
458
459 clrsetbits_32(base + reg_lo, BIT(bit), (i & 1) << bit);
460 clrsetbits_32(base + reg_hi, BIT(bit), ((i >> 1) & 1) << bit);
461
462 return 0;
463}
464
465static int mt7628_get_pins_count(struct udevice *dev)
466{
467 return ARRAY_SIZE(mt7628_pins);
468}
469
470static const char *mt7628_get_pin_name(struct udevice *dev,
471 unsigned int selector)
472{
473 return mt7628_pins[selector];
474}
475
476static int mt7628_pinconf_set(struct udevice *dev, unsigned int pin_selector,
477 unsigned int param, unsigned int argument)
478{
479 struct mt7628_pinctrl_priv *priv = dev_get_priv(dev);
480 u32 offs, bit;
481 int ret = 0;
482
483 offs = (pin_selector / 32) * 4;
484 bit = pin_selector % 32;
485
486 switch (param) {
487 case PIN_CONFIG_BIAS_DISABLE:
488 clrbits_32(priv->pcbase + offs + PAD_PU_G0_REG, BIT(bit));
489 clrbits_32(priv->pcbase + offs + PAD_PD_G0_REG, BIT(bit));
490 break;
491 case PIN_CONFIG_BIAS_PULL_UP:
492 setbits_32(priv->pcbase + offs + PAD_PU_G0_REG, BIT(bit));
493 clrbits_32(priv->pcbase + offs + PAD_PD_G0_REG, BIT(bit));
494 break;
495 case PIN_CONFIG_BIAS_PULL_DOWN:
496 clrbits_32(priv->pcbase + offs + PAD_PU_G0_REG, BIT(bit));
497 setbits_32(priv->pcbase + offs + PAD_PD_G0_REG, BIT(bit));
498 break;
499 case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
500 clrsetbits_32(priv->pcbase + offs + PAD_SMT_G0_REG,
501 BIT(bit), (!!argument) << bit);
502 break;
503 case PIN_CONFIG_DRIVE_STRENGTH_28:
504 ret = mt7628_set_drv_strength(priv->pcbase + offs, argument,
505 bit, mt7628_drv_strength_28_tbl,
506 PAD_E2_G0_REG, PAD_E4_G0_REG);
507 break;
508 case PIN_CONFIG_DRIVE_STRENGTH_4G:
509 ret = mt7628_set_drv_strength(priv->pcbase + offs, argument,
510 bit, mt7628_drv_strength_4g_tbl,
511 PAD_E4_G0_REG, PAD_E8_G0_REG);
512 break;
513 case PIN_CONFIG_SLEW_RATE:
514 clrsetbits_32(priv->pcbase + offs + PAD_SR_G0_REG,
515 BIT(bit), (!!argument) << bit);
516 break;
517 default:
518 ret = -EINVAL;
519 }
520
521 return ret;
522}
523#endif
524
525static int mt7628_pinctrl_probe(struct udevice *dev)
526{
527 struct mt7628_pinctrl_priv *priv = dev_get_priv(dev);
528 int ret = 0;
529
530#if CONFIG_IS_ENABLED(PINMUX)
531 ret = mtmips_pinctrl_probe(&priv->mp, ARRAY_SIZE(mt7628_pinmux_data),
532 mt7628_pinmux_data);
533#endif
534
535 return ret;
536}
537
538static int mt7628_pinctrl_of_to_plat(struct udevice *dev)
539{
540 struct mt7628_pinctrl_priv *priv = dev_get_priv(dev);
541
542 priv->mp.base = (void __iomem *)dev_remap_addr_index(dev, 0);
543
544 if (!priv->mp.base)
545 return -EINVAL;
546
547 priv->pcbase = (void __iomem *)dev_remap_addr_index(dev, 1);
548
549 if (!priv->pcbase)
550 return -EINVAL;
551
552 return 0;
553}
554
555static const struct pinctrl_ops mt7628_pinctrl_ops = {
556#if CONFIG_IS_ENABLED(PINMUX)
557 .get_groups_count = mt7628_get_groups_count,
558 .get_group_name = mt7628_get_group_name,
559 .get_functions_count = mtmips_get_functions_count,
560 .get_function_name = mtmips_get_function_name,
561 .pinmux_group_set = mtmips_pinmux_group_set,
562#endif
563#if CONFIG_IS_ENABLED(PINCONF)
564 .pinconf_num_params = ARRAY_SIZE(mt7628_conf_params),
565 .pinconf_params = mt7628_conf_params,
566 .get_pins_count = mt7628_get_pins_count,
567 .get_pin_name = mt7628_get_pin_name,
568 .pinconf_set = mt7628_pinconf_set,
569#endif
570 .set_state = pinctrl_generic_set_state,
571};
572
573static const struct udevice_id mt7628_pinctrl_ids[] = {
574 { .compatible = "mediatek,mt7628-pinctrl" },
575 { }
576};
577
578U_BOOT_DRIVER(mt7628_pinctrl) = {
579 .name = "mt7628-pinctrl",
580 .id = UCLASS_PINCTRL,
581 .of_match = mt7628_pinctrl_ids,
582 .of_to_plat = mt7628_pinctrl_of_to_plat,
583 .ops = &mt7628_pinctrl_ops,
584 .probe = mt7628_pinctrl_probe,
585 .priv_auto = sizeof(struct mt7628_pinctrl_priv),
586};
587
