1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Intel Merrifield SoC pinctrl driver
4  *
5  * Copyright (C) 2016, Intel Corporation
6  * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
7  */
8 
9 #include <linux/init.h>
10 #include <linux/kernel.h>
11 #include <linux/mod_devicetable.h>
12 #include <linux/module.h>
13 #include <linux/platform_device.h>
14 #include <linux/types.h>
15 
16 #include <linux/pinctrl/pinctrl.h>
17 
18 #include "pinctrl-intel.h"
19 #include "pinctrl-tangier.h"
20 
21 static const struct pinctrl_pin_desc mrfld_pins[] = {
22 	/* Family 0: OCP2SSC (0 pins) */
23 	/* Family 1: ULPI (13 pins) */
24 	PINCTRL_PIN(0, "ULPI_CLK"),
25 	PINCTRL_PIN(1, "ULPI_D0"),
26 	PINCTRL_PIN(2, "ULPI_D1"),
27 	PINCTRL_PIN(3, "ULPI_D2"),
28 	PINCTRL_PIN(4, "ULPI_D3"),
29 	PINCTRL_PIN(5, "ULPI_D4"),
30 	PINCTRL_PIN(6, "ULPI_D5"),
31 	PINCTRL_PIN(7, "ULPI_D6"),
32 	PINCTRL_PIN(8, "ULPI_D7"),
33 	PINCTRL_PIN(9, "ULPI_DIR"),
34 	PINCTRL_PIN(10, "ULPI_NXT"),
35 	PINCTRL_PIN(11, "ULPI_REFCLK"),
36 	PINCTRL_PIN(12, "ULPI_STP"),
37 	/* Family 2: eMMC (24 pins) */
38 	PINCTRL_PIN(13, "EMMC_CLK"),
39 	PINCTRL_PIN(14, "EMMC_CMD"),
40 	PINCTRL_PIN(15, "EMMC_D0"),
41 	PINCTRL_PIN(16, "EMMC_D1"),
42 	PINCTRL_PIN(17, "EMMC_D2"),
43 	PINCTRL_PIN(18, "EMMC_D3"),
44 	PINCTRL_PIN(19, "EMMC_D4"),
45 	PINCTRL_PIN(20, "EMMC_D5"),
46 	PINCTRL_PIN(21, "EMMC_D6"),
47 	PINCTRL_PIN(22, "EMMC_D7"),
48 	PINCTRL_PIN(23, "EMMC_RST_N"),
49 	PINCTRL_PIN(24, "GP154"),
50 	PINCTRL_PIN(25, "GP155"),
51 	PINCTRL_PIN(26, "GP156"),
52 	PINCTRL_PIN(27, "GP157"),
53 	PINCTRL_PIN(28, "GP158"),
54 	PINCTRL_PIN(29, "GP159"),
55 	PINCTRL_PIN(30, "GP160"),
56 	PINCTRL_PIN(31, "GP161"),
57 	PINCTRL_PIN(32, "GP162"),
58 	PINCTRL_PIN(33, "GP163"),
59 	PINCTRL_PIN(34, "GP97"),
60 	PINCTRL_PIN(35, "GP14"),
61 	PINCTRL_PIN(36, "GP15"),
62 	/* Family 3: SDIO (20 pins) */
63 	PINCTRL_PIN(37, "GP77_SD_CD"),
64 	PINCTRL_PIN(38, "GP78_SD_CLK"),
65 	PINCTRL_PIN(39, "GP79_SD_CMD"),
66 	PINCTRL_PIN(40, "GP80_SD_D0"),
67 	PINCTRL_PIN(41, "GP81_SD_D1"),
68 	PINCTRL_PIN(42, "GP82_SD_D2"),
69 	PINCTRL_PIN(43, "GP83_SD_D3"),
70 	PINCTRL_PIN(44, "GP84_SD_LS_CLK_FB"),
71 	PINCTRL_PIN(45, "GP85_SD_LS_CMD_DIR"),
72 	PINCTRL_PIN(46, "GP86_SD_LS_D_DIR"),
73 	PINCTRL_PIN(47, "GP88_SD_LS_SEL"),
74 	PINCTRL_PIN(48, "GP87_SD_PD"),
75 	PINCTRL_PIN(49, "GP89_SD_WP"),
76 	PINCTRL_PIN(50, "GP90_SDIO_CLK"),
77 	PINCTRL_PIN(51, "GP91_SDIO_CMD"),
78 	PINCTRL_PIN(52, "GP92_SDIO_D0"),
79 	PINCTRL_PIN(53, "GP93_SDIO_D1"),
80 	PINCTRL_PIN(54, "GP94_SDIO_D2"),
81 	PINCTRL_PIN(55, "GP95_SDIO_D3"),
82 	PINCTRL_PIN(56, "GP96_SDIO_PD"),
83 	/* Family 4: HSI (8 pins) */
84 	PINCTRL_PIN(57, "HSI_ACDATA"),
85 	PINCTRL_PIN(58, "HSI_ACFLAG"),
86 	PINCTRL_PIN(59, "HSI_ACREADY"),
87 	PINCTRL_PIN(60, "HSI_ACWAKE"),
88 	PINCTRL_PIN(61, "HSI_CADATA"),
89 	PINCTRL_PIN(62, "HSI_CAFLAG"),
90 	PINCTRL_PIN(63, "HSI_CAREADY"),
91 	PINCTRL_PIN(64, "HSI_CAWAKE"),
92 	/* Family 5: SSP Audio (14 pins) */
93 	PINCTRL_PIN(65, "GP70"),
94 	PINCTRL_PIN(66, "GP71"),
95 	PINCTRL_PIN(67, "GP32_I2S_0_CLK"),
96 	PINCTRL_PIN(68, "GP33_I2S_0_FS"),
97 	PINCTRL_PIN(69, "GP34_I2S_0_RXD"),
98 	PINCTRL_PIN(70, "GP35_I2S_0_TXD"),
99 	PINCTRL_PIN(71, "GP36_I2S_1_CLK"),
100 	PINCTRL_PIN(72, "GP37_I2S_1_FS"),
101 	PINCTRL_PIN(73, "GP38_I2S_1_RXD"),
102 	PINCTRL_PIN(74, "GP39_I2S_1_TXD"),
103 	PINCTRL_PIN(75, "GP40_I2S_2_CLK"),
104 	PINCTRL_PIN(76, "GP41_I2S_2_FS"),
105 	PINCTRL_PIN(77, "GP42_I2S_2_RXD"),
106 	PINCTRL_PIN(78, "GP43_I2S_2_TXD"),
107 	/* Family 6: GP SSP (22 pins) */
108 	PINCTRL_PIN(79, "GP120_SPI_0_CLK"),
109 	PINCTRL_PIN(80, "GP121_SPI_0_SS"),
110 	PINCTRL_PIN(81, "GP122_SPI_0_RXD"),
111 	PINCTRL_PIN(82, "GP123_SPI_0_TXD"),
112 	PINCTRL_PIN(83, "GP102_SPI_1_CLK"),
113 	PINCTRL_PIN(84, "GP103_SPI_1_SS0"),
114 	PINCTRL_PIN(85, "GP104_SPI_1_SS1"),
115 	PINCTRL_PIN(86, "GP105_SPI_1_SS2"),
116 	PINCTRL_PIN(87, "GP106_SPI_1_SS3"),
117 	PINCTRL_PIN(88, "GP107_SPI_1_RXD"),
118 	PINCTRL_PIN(89, "GP108_SPI_1_TXD"),
119 	PINCTRL_PIN(90, "GP109_SPI_2_CLK"),
120 	PINCTRL_PIN(91, "GP110_SPI_2_SS0"),
121 	PINCTRL_PIN(92, "GP111_SPI_2_SS1"),
122 	PINCTRL_PIN(93, "GP112_SPI_2_SS2"),
123 	PINCTRL_PIN(94, "GP113_SPI_2_SS3"),
124 	PINCTRL_PIN(95, "GP114_SPI_2_RXD"),
125 	PINCTRL_PIN(96, "GP115_SPI_2_TXD"),
126 	PINCTRL_PIN(97, "GP116_SPI_3_CLK"),
127 	PINCTRL_PIN(98, "GP117_SPI_3_SS"),
128 	PINCTRL_PIN(99, "GP118_SPI_3_RXD"),
129 	PINCTRL_PIN(100, "GP119_SPI_3_TXD"),
130 	/* Family 7: I2C (14 pins) */
131 	PINCTRL_PIN(101, "GP19_I2C_1_SCL"),
132 	PINCTRL_PIN(102, "GP20_I2C_1_SDA"),
133 	PINCTRL_PIN(103, "GP21_I2C_2_SCL"),
134 	PINCTRL_PIN(104, "GP22_I2C_2_SDA"),
135 	PINCTRL_PIN(105, "GP17_I2C_3_SCL_HDMI"),
136 	PINCTRL_PIN(106, "GP18_I2C_3_SDA_HDMI"),
137 	PINCTRL_PIN(107, "GP23_I2C_4_SCL"),
138 	PINCTRL_PIN(108, "GP24_I2C_4_SDA"),
139 	PINCTRL_PIN(109, "GP25_I2C_5_SCL"),
140 	PINCTRL_PIN(110, "GP26_I2C_5_SDA"),
141 	PINCTRL_PIN(111, "GP27_I2C_6_SCL"),
142 	PINCTRL_PIN(112, "GP28_I2C_6_SDA"),
143 	PINCTRL_PIN(113, "GP29_I2C_7_SCL"),
144 	PINCTRL_PIN(114, "GP30_I2C_7_SDA"),
145 	/* Family 8: UART (12 pins) */
146 	PINCTRL_PIN(115, "GP124_UART_0_CTS"),
147 	PINCTRL_PIN(116, "GP125_UART_0_RTS"),
148 	PINCTRL_PIN(117, "GP126_UART_0_RX"),
149 	PINCTRL_PIN(118, "GP127_UART_0_TX"),
150 	PINCTRL_PIN(119, "GP128_UART_1_CTS"),
151 	PINCTRL_PIN(120, "GP129_UART_1_RTS"),
152 	PINCTRL_PIN(121, "GP130_UART_1_RX"),
153 	PINCTRL_PIN(122, "GP131_UART_1_TX"),
154 	PINCTRL_PIN(123, "GP132_UART_2_CTS"),
155 	PINCTRL_PIN(124, "GP133_UART_2_RTS"),
156 	PINCTRL_PIN(125, "GP134_UART_2_RX"),
157 	PINCTRL_PIN(126, "GP135_UART_2_TX"),
158 	/* Family 9: GPIO South (19 pins) */
159 	PINCTRL_PIN(127, "GP177"),
160 	PINCTRL_PIN(128, "GP178"),
161 	PINCTRL_PIN(129, "GP179"),
162 	PINCTRL_PIN(130, "GP180"),
163 	PINCTRL_PIN(131, "GP181"),
164 	PINCTRL_PIN(132, "GP182_PWM2"),
165 	PINCTRL_PIN(133, "GP183_PWM3"),
166 	PINCTRL_PIN(134, "GP184"),
167 	PINCTRL_PIN(135, "GP185"),
168 	PINCTRL_PIN(136, "GP186"),
169 	PINCTRL_PIN(137, "GP187"),
170 	PINCTRL_PIN(138, "GP188"),
171 	PINCTRL_PIN(139, "GP189"),
172 	PINCTRL_PIN(140, "GP64_FAST_INT0"),
173 	PINCTRL_PIN(141, "GP65_FAST_INT1"),
174 	PINCTRL_PIN(142, "GP66_FAST_INT2"),
175 	PINCTRL_PIN(143, "GP67_FAST_INT3"),
176 	PINCTRL_PIN(144, "GP12_PWM0"),
177 	PINCTRL_PIN(145, "GP13_PWM1"),
178 	/* Family 10: Camera Sideband (12 pins) */
179 	PINCTRL_PIN(146, "GP0"),
180 	PINCTRL_PIN(147, "GP1"),
181 	PINCTRL_PIN(148, "GP2"),
182 	PINCTRL_PIN(149, "GP3"),
183 	PINCTRL_PIN(150, "GP4"),
184 	PINCTRL_PIN(151, "GP5"),
185 	PINCTRL_PIN(152, "GP6"),
186 	PINCTRL_PIN(153, "GP7"),
187 	PINCTRL_PIN(154, "GP8"),
188 	PINCTRL_PIN(155, "GP9"),
189 	PINCTRL_PIN(156, "GP10"),
190 	PINCTRL_PIN(157, "GP11"),
191 	/* Family 11: Clock (22 pins) */
192 	PINCTRL_PIN(158, "GP137"),
193 	PINCTRL_PIN(159, "GP138"),
194 	PINCTRL_PIN(160, "GP139"),
195 	PINCTRL_PIN(161, "GP140"),
196 	PINCTRL_PIN(162, "GP141"),
197 	PINCTRL_PIN(163, "GP142"),
198 	PINCTRL_PIN(164, "GP16_HDMI_HPD"),
199 	PINCTRL_PIN(165, "GP68_DSI_A_TE"),
200 	PINCTRL_PIN(166, "GP69_DSI_C_TE"),
201 	PINCTRL_PIN(167, "OSC_CLK_CTRL0"),
202 	PINCTRL_PIN(168, "OSC_CLK_CTRL1"),
203 	PINCTRL_PIN(169, "OSC_CLK0"),
204 	PINCTRL_PIN(170, "OSC_CLK1"),
205 	PINCTRL_PIN(171, "OSC_CLK2"),
206 	PINCTRL_PIN(172, "OSC_CLK3"),
207 	PINCTRL_PIN(173, "OSC_CLK4"),
208 	PINCTRL_PIN(174, "RESETOUT"),
209 	PINCTRL_PIN(175, "PMODE"),
210 	PINCTRL_PIN(176, "PRDY"),
211 	PINCTRL_PIN(177, "PREQ"),
212 	PINCTRL_PIN(178, "GP190"),
213 	PINCTRL_PIN(179, "GP191"),
214 	/* Family 12: MSIC (15 pins) */
215 	PINCTRL_PIN(180, "I2C_0_SCL"),
216 	PINCTRL_PIN(181, "I2C_0_SDA"),
217 	PINCTRL_PIN(182, "IERR"),
218 	PINCTRL_PIN(183, "JTAG_TCK"),
219 	PINCTRL_PIN(184, "JTAG_TDI"),
220 	PINCTRL_PIN(185, "JTAG_TDO"),
221 	PINCTRL_PIN(186, "JTAG_TMS"),
222 	PINCTRL_PIN(187, "JTAG_TRST"),
223 	PINCTRL_PIN(188, "PROCHOT"),
224 	PINCTRL_PIN(189, "RTC_CLK"),
225 	PINCTRL_PIN(190, "SVID_ALERT"),
226 	PINCTRL_PIN(191, "SVID_CLK"),
227 	PINCTRL_PIN(192, "SVID_D"),
228 	PINCTRL_PIN(193, "THERMTRIP"),
229 	PINCTRL_PIN(194, "STANDBY"),
230 	/* Family 13: Keyboard (20 pins) */
231 	PINCTRL_PIN(195, "GP44"),
232 	PINCTRL_PIN(196, "GP45"),
233 	PINCTRL_PIN(197, "GP46"),
234 	PINCTRL_PIN(198, "GP47"),
235 	PINCTRL_PIN(199, "GP48"),
236 	PINCTRL_PIN(200, "GP49"),
237 	PINCTRL_PIN(201, "GP50"),
238 	PINCTRL_PIN(202, "GP51"),
239 	PINCTRL_PIN(203, "GP52"),
240 	PINCTRL_PIN(204, "GP53"),
241 	PINCTRL_PIN(205, "GP54"),
242 	PINCTRL_PIN(206, "GP55"),
243 	PINCTRL_PIN(207, "GP56"),
244 	PINCTRL_PIN(208, "GP57"),
245 	PINCTRL_PIN(209, "GP58"),
246 	PINCTRL_PIN(210, "GP59"),
247 	PINCTRL_PIN(211, "GP60"),
248 	PINCTRL_PIN(212, "GP61"),
249 	PINCTRL_PIN(213, "GP62"),
250 	PINCTRL_PIN(214, "GP63"),
251 	/* Family 14: GPIO North (13 pins) */
252 	PINCTRL_PIN(215, "GP164"),
253 	PINCTRL_PIN(216, "GP165"),
254 	PINCTRL_PIN(217, "GP166"),
255 	PINCTRL_PIN(218, "GP167"),
256 	PINCTRL_PIN(219, "GP168_MJTAG_TCK"),
257 	PINCTRL_PIN(220, "GP169_MJTAG_TDI"),
258 	PINCTRL_PIN(221, "GP170_MJTAG_TDO"),
259 	PINCTRL_PIN(222, "GP171_MJTAG_TMS"),
260 	PINCTRL_PIN(223, "GP172_MJTAG_TRST"),
261 	PINCTRL_PIN(224, "GP173"),
262 	PINCTRL_PIN(225, "GP174"),
263 	PINCTRL_PIN(226, "GP175"),
264 	PINCTRL_PIN(227, "GP176"),
265 	/* Family 15: PTI (5 pins) */
266 	PINCTRL_PIN(228, "GP72_PTI_CLK"),
267 	PINCTRL_PIN(229, "GP73_PTI_D0"),
268 	PINCTRL_PIN(230, "GP74_PTI_D1"),
269 	PINCTRL_PIN(231, "GP75_PTI_D2"),
270 	PINCTRL_PIN(232, "GP76_PTI_D3"),
271 	/* Family 16: USB3 (0 pins) */
272 	/* Family 17: HSIC (0 pins) */
273 	/* Family 18: Broadcast (0 pins) */
274 };
275 
276 static const unsigned int mrfld_sdio_pins[] = { 50, 51, 52, 53, 54, 55, 56 };
277 static const unsigned int mrfld_i2s2_pins[] = { 75, 76, 77, 78 };
278 static const unsigned int mrfld_spi5_pins[] = { 90, 91, 92, 93, 94, 95, 96 };
279 static const unsigned int mrfld_uart0_pins[] = { 115, 116, 117, 118 };
280 static const unsigned int mrfld_uart1_pins[] = { 119, 120, 121, 122 };
281 static const unsigned int mrfld_uart2_pins[] = { 123, 124, 125, 126 };
282 static const unsigned int mrfld_pwm0_pins[] = { 144 };
283 static const unsigned int mrfld_pwm1_pins[] = { 145 };
284 static const unsigned int mrfld_pwm2_pins[] = { 132 };
285 static const unsigned int mrfld_pwm3_pins[] = { 133 };
286 
287 static const struct intel_pingroup mrfld_groups[] = {
288 	PIN_GROUP("sdio_grp", mrfld_sdio_pins, 1),
289 	PIN_GROUP("i2s2_grp", mrfld_i2s2_pins, 1),
290 	PIN_GROUP("spi5_grp", mrfld_spi5_pins, 1),
291 	PIN_GROUP("uart0_grp", mrfld_uart0_pins, 1),
292 	PIN_GROUP("uart1_grp", mrfld_uart1_pins, 1),
293 	PIN_GROUP("uart2_grp", mrfld_uart2_pins, 1),
294 	PIN_GROUP("pwm0_grp", mrfld_pwm0_pins, 1),
295 	PIN_GROUP("pwm1_grp", mrfld_pwm1_pins, 1),
296 	PIN_GROUP("pwm2_grp", mrfld_pwm2_pins, 1),
297 	PIN_GROUP("pwm3_grp", mrfld_pwm3_pins, 1),
298 };
299 
300 static const char * const mrfld_sdio_groups[] = { "sdio_grp" };
301 static const char * const mrfld_i2s2_groups[] = { "i2s2_grp" };
302 static const char * const mrfld_spi5_groups[] = { "spi5_grp" };
303 static const char * const mrfld_uart0_groups[] = { "uart0_grp" };
304 static const char * const mrfld_uart1_groups[] = { "uart1_grp" };
305 static const char * const mrfld_uart2_groups[] = { "uart2_grp" };
306 static const char * const mrfld_pwm0_groups[] = { "pwm0_grp" };
307 static const char * const mrfld_pwm1_groups[] = { "pwm1_grp" };
308 static const char * const mrfld_pwm2_groups[] = { "pwm2_grp" };
309 static const char * const mrfld_pwm3_groups[] = { "pwm3_grp" };
310 
311 static const struct intel_function mrfld_functions[] = {
312 	FUNCTION("sdio", mrfld_sdio_groups),
313 	FUNCTION("i2s2", mrfld_i2s2_groups),
314 	FUNCTION("spi5", mrfld_spi5_groups),
315 	FUNCTION("uart0", mrfld_uart0_groups),
316 	FUNCTION("uart1", mrfld_uart1_groups),
317 	FUNCTION("uart2", mrfld_uart2_groups),
318 	FUNCTION("pwm0", mrfld_pwm0_groups),
319 	FUNCTION("pwm1", mrfld_pwm1_groups),
320 	FUNCTION("pwm2", mrfld_pwm2_groups),
321 	FUNCTION("pwm3", mrfld_pwm3_groups),
322 };
323 
324 static const struct tng_family mrfld_families[] = {
325 	TNG_FAMILY(1, 0, 12),
326 	TNG_FAMILY(2, 13, 36),
327 	TNG_FAMILY(3, 37, 56),
328 	TNG_FAMILY(4, 57, 64),
329 	TNG_FAMILY(5, 65, 78),
330 	TNG_FAMILY(6, 79, 100),
331 	TNG_FAMILY_PROTECTED(7, 101, 114),
332 	TNG_FAMILY(8, 115, 126),
333 	TNG_FAMILY(9, 127, 145),
334 	TNG_FAMILY(10, 146, 157),
335 	TNG_FAMILY(11, 158, 179),
336 	TNG_FAMILY_PROTECTED(12, 180, 194),
337 	TNG_FAMILY(13, 195, 214),
338 	TNG_FAMILY(14, 215, 227),
339 	TNG_FAMILY(15, 228, 232),
340 };
341 
342 static const struct tng_pinctrl mrfld_soc_data = {
343 	.pins = mrfld_pins,
344 	.npins = ARRAY_SIZE(mrfld_pins),
345 	.groups = mrfld_groups,
346 	.ngroups = ARRAY_SIZE(mrfld_groups),
347 	.families = mrfld_families,
348 	.nfamilies = ARRAY_SIZE(mrfld_families),
349 	.functions = mrfld_functions,
350 	.nfunctions = ARRAY_SIZE(mrfld_functions),
351 };
352 
353 static const struct acpi_device_id mrfld_acpi_table[] = {
354 	{ "INTC1002", (kernel_ulong_t)&mrfld_soc_data },
355 	{ }
356 };
357 MODULE_DEVICE_TABLE(acpi, mrfld_acpi_table);
358 
359 static struct platform_driver mrfld_pinctrl_driver = {
360 	.probe = devm_tng_pinctrl_probe,
361 	.driver = {
362 		.name = "pinctrl-merrifield",
363 		.acpi_match_table = mrfld_acpi_table,
364 	},
365 };
366 
mrfld_pinctrl_init(void)367 static int __init mrfld_pinctrl_init(void)
368 {
369 	return platform_driver_register(&mrfld_pinctrl_driver);
370 }
371 subsys_initcall(mrfld_pinctrl_init);
372 
mrfld_pinctrl_exit(void)373 static void __exit mrfld_pinctrl_exit(void)
374 {
375 	platform_driver_unregister(&mrfld_pinctrl_driver);
376 }
377 module_exit(mrfld_pinctrl_exit);
378 
379 MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
380 MODULE_DESCRIPTION("Intel Merrifield SoC pinctrl driver");
381 MODULE_LICENSE("GPL v2");
382 MODULE_ALIAS("platform:pinctrl-merrifield");
383 MODULE_IMPORT_NS(PINCTRL_TANGIER);
384