1 // SPDX-License-Identifier: GPL-2.0+
3 // Exynos ARMv8 specific support for Samsung pinctrl/gpiolib driver
6 // Copyright (c) 2012 Samsung Electronics Co., Ltd.
7 // http://www.samsung.com
8 // Copyright (c) 2012 Linaro Ltd
9 // http://www.linaro.org
10 // Copyright (c) 2017 Krzysztof Kozlowski <krzk@kernel.org>
12 // This file contains the Samsung Exynos specific information required by the
13 // the Samsung pinctrl/gpiolib driver. It also includes the implementation of
14 // external gpio and wakeup interrupt support.
16 #include <linux/slab.h>
17 #include <linux/soc/samsung/exynos-regs-pmu.h>
19 #include "pinctrl-samsung.h"
20 #include "pinctrl-exynos.h"
22 static const struct samsung_pin_bank_type bank_type_off
= {
23 .fld_width
= { 4, 1, 2, 2, 2, 2, },
24 .reg_offset
= { 0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, },
27 static const struct samsung_pin_bank_type bank_type_alive
= {
28 .fld_width
= { 4, 1, 2, 2, },
29 .reg_offset
= { 0x00, 0x04, 0x08, 0x0c, },
32 /* Exynos5433 has the 4bit widths for PINCFG_TYPE_DRV bitfields. */
33 static const struct samsung_pin_bank_type exynos5433_bank_type_off
= {
34 .fld_width
= { 4, 1, 2, 4, 2, 2, },
35 .reg_offset
= { 0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, },
38 static const struct samsung_pin_bank_type exynos5433_bank_type_alive
= {
39 .fld_width
= { 4, 1, 2, 4, },
40 .reg_offset
= { 0x00, 0x04, 0x08, 0x0c, },
43 /* Pad retention control code for accessing PMU regmap */
44 static atomic_t exynos_shared_retention_refcnt
;
46 /* pin banks of exynos5433 pin-controller - ALIVE */
47 static const struct samsung_pin_bank_data exynos5433_pin_banks0
[] __initconst
= {
48 EXYNOS5433_PIN_BANK_EINTW(8, 0x000, "gpa0", 0x00),
49 EXYNOS5433_PIN_BANK_EINTW(8, 0x020, "gpa1", 0x04),
50 EXYNOS5433_PIN_BANK_EINTW(8, 0x040, "gpa2", 0x08),
51 EXYNOS5433_PIN_BANK_EINTW(8, 0x060, "gpa3", 0x0c),
52 EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x020, "gpf1", 0x1004, 1),
53 EXYNOS5433_PIN_BANK_EINTW_EXT(4, 0x040, "gpf2", 0x1008, 1),
54 EXYNOS5433_PIN_BANK_EINTW_EXT(4, 0x060, "gpf3", 0x100c, 1),
55 EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x080, "gpf4", 0x1010, 1),
56 EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x0a0, "gpf5", 0x1014, 1),
59 /* pin banks of exynos5433 pin-controller - AUD */
60 static const struct samsung_pin_bank_data exynos5433_pin_banks1
[] __initconst
= {
61 EXYNOS5433_PIN_BANK_EINTG(7, 0x000, "gpz0", 0x00),
62 EXYNOS5433_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04),
65 /* pin banks of exynos5433 pin-controller - CPIF */
66 static const struct samsung_pin_bank_data exynos5433_pin_banks2
[] __initconst
= {
67 EXYNOS5433_PIN_BANK_EINTG(2, 0x000, "gpv6", 0x00),
70 /* pin banks of exynos5433 pin-controller - eSE */
71 static const struct samsung_pin_bank_data exynos5433_pin_banks3
[] __initconst
= {
72 EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj2", 0x00),
75 /* pin banks of exynos5433 pin-controller - FINGER */
76 static const struct samsung_pin_bank_data exynos5433_pin_banks4
[] __initconst
= {
77 EXYNOS5433_PIN_BANK_EINTG(4, 0x000, "gpd5", 0x00),
80 /* pin banks of exynos5433 pin-controller - FSYS */
81 static const struct samsung_pin_bank_data exynos5433_pin_banks5
[] __initconst
= {
82 EXYNOS5433_PIN_BANK_EINTG(6, 0x000, "gph1", 0x00),
83 EXYNOS5433_PIN_BANK_EINTG(7, 0x020, "gpr4", 0x04),
84 EXYNOS5433_PIN_BANK_EINTG(5, 0x040, "gpr0", 0x08),
85 EXYNOS5433_PIN_BANK_EINTG(8, 0x060, "gpr1", 0x0c),
86 EXYNOS5433_PIN_BANK_EINTG(2, 0x080, "gpr2", 0x10),
87 EXYNOS5433_PIN_BANK_EINTG(8, 0x0a0, "gpr3", 0x14),
90 /* pin banks of exynos5433 pin-controller - IMEM */
91 static const struct samsung_pin_bank_data exynos5433_pin_banks6
[] __initconst
= {
92 EXYNOS5433_PIN_BANK_EINTG(8, 0x000, "gpf0", 0x00),
95 /* pin banks of exynos5433 pin-controller - NFC */
96 static const struct samsung_pin_bank_data exynos5433_pin_banks7
[] __initconst
= {
97 EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj0", 0x00),
100 /* pin banks of exynos5433 pin-controller - PERIC */
101 static const struct samsung_pin_bank_data exynos5433_pin_banks8
[] __initconst
= {
102 EXYNOS5433_PIN_BANK_EINTG(6, 0x000, "gpv7", 0x00),
103 EXYNOS5433_PIN_BANK_EINTG(5, 0x020, "gpb0", 0x04),
104 EXYNOS5433_PIN_BANK_EINTG(8, 0x040, "gpc0", 0x08),
105 EXYNOS5433_PIN_BANK_EINTG(2, 0x060, "gpc1", 0x0c),
106 EXYNOS5433_PIN_BANK_EINTG(6, 0x080, "gpc2", 0x10),
107 EXYNOS5433_PIN_BANK_EINTG(8, 0x0a0, "gpc3", 0x14),
108 EXYNOS5433_PIN_BANK_EINTG(2, 0x0c0, "gpg0", 0x18),
109 EXYNOS5433_PIN_BANK_EINTG(4, 0x0e0, "gpd0", 0x1c),
110 EXYNOS5433_PIN_BANK_EINTG(6, 0x100, "gpd1", 0x20),
111 EXYNOS5433_PIN_BANK_EINTG(8, 0x120, "gpd2", 0x24),
112 EXYNOS5433_PIN_BANK_EINTG(5, 0x140, "gpd4", 0x28),
113 EXYNOS5433_PIN_BANK_EINTG(2, 0x160, "gpd8", 0x2c),
114 EXYNOS5433_PIN_BANK_EINTG(7, 0x180, "gpd6", 0x30),
115 EXYNOS5433_PIN_BANK_EINTG(3, 0x1a0, "gpd7", 0x34),
116 EXYNOS5433_PIN_BANK_EINTG(5, 0x1c0, "gpg1", 0x38),
117 EXYNOS5433_PIN_BANK_EINTG(2, 0x1e0, "gpg2", 0x3c),
118 EXYNOS5433_PIN_BANK_EINTG(8, 0x200, "gpg3", 0x40),
121 /* pin banks of exynos5433 pin-controller - TOUCH */
122 static const struct samsung_pin_bank_data exynos5433_pin_banks9
[] __initconst
= {
123 EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj1", 0x00),
126 /* PMU pin retention groups registers for Exynos5433 (without audio & fsys) */
127 static const u32 exynos5433_retention_regs
[] = {
128 EXYNOS5433_PAD_RETENTION_TOP_OPTION
,
129 EXYNOS5433_PAD_RETENTION_UART_OPTION
,
130 EXYNOS5433_PAD_RETENTION_EBIA_OPTION
,
131 EXYNOS5433_PAD_RETENTION_EBIB_OPTION
,
132 EXYNOS5433_PAD_RETENTION_SPI_OPTION
,
133 EXYNOS5433_PAD_RETENTION_MIF_OPTION
,
134 EXYNOS5433_PAD_RETENTION_USBXTI_OPTION
,
135 EXYNOS5433_PAD_RETENTION_BOOTLDO_OPTION
,
136 EXYNOS5433_PAD_RETENTION_UFS_OPTION
,
137 EXYNOS5433_PAD_RETENTION_FSYSGENIO_OPTION
,
140 static const struct samsung_retention_data exynos5433_retention_data __initconst
= {
141 .regs
= exynos5433_retention_regs
,
142 .nr_regs
= ARRAY_SIZE(exynos5433_retention_regs
),
143 .value
= EXYNOS_WAKEUP_FROM_LOWPWR
,
144 .refcnt
= &exynos_shared_retention_refcnt
,
145 .init
= exynos_retention_init
,
148 /* PMU retention control for audio pins can be tied to audio pin bank */
149 static const u32 exynos5433_audio_retention_regs
[] = {
150 EXYNOS5433_PAD_RETENTION_AUD_OPTION
,
153 static const struct samsung_retention_data exynos5433_audio_retention_data __initconst
= {
154 .regs
= exynos5433_audio_retention_regs
,
155 .nr_regs
= ARRAY_SIZE(exynos5433_audio_retention_regs
),
156 .value
= EXYNOS_WAKEUP_FROM_LOWPWR
,
157 .init
= exynos_retention_init
,
160 /* PMU retention control for mmc pins can be tied to fsys pin bank */
161 static const u32 exynos5433_fsys_retention_regs
[] = {
162 EXYNOS5433_PAD_RETENTION_MMC0_OPTION
,
163 EXYNOS5433_PAD_RETENTION_MMC1_OPTION
,
164 EXYNOS5433_PAD_RETENTION_MMC2_OPTION
,
167 static const struct samsung_retention_data exynos5433_fsys_retention_data __initconst
= {
168 .regs
= exynos5433_fsys_retention_regs
,
169 .nr_regs
= ARRAY_SIZE(exynos5433_fsys_retention_regs
),
170 .value
= EXYNOS_WAKEUP_FROM_LOWPWR
,
171 .init
= exynos_retention_init
,
175 * Samsung pinctrl driver data for Exynos5433 SoC. Exynos5433 SoC includes
176 * ten gpio/pin-mux/pinconfig controllers.
178 const struct samsung_pin_ctrl exynos5433_pin_ctrl
[] __initconst
= {
180 /* pin-controller instance 0 data */
181 .pin_banks
= exynos5433_pin_banks0
,
182 .nr_banks
= ARRAY_SIZE(exynos5433_pin_banks0
),
183 .eint_wkup_init
= exynos_eint_wkup_init
,
184 .suspend
= exynos_pinctrl_suspend
,
185 .resume
= exynos_pinctrl_resume
,
186 .nr_ext_resources
= 1,
187 .retention_data
= &exynos5433_retention_data
,
189 /* pin-controller instance 1 data */
190 .pin_banks
= exynos5433_pin_banks1
,
191 .nr_banks
= ARRAY_SIZE(exynos5433_pin_banks1
),
192 .eint_gpio_init
= exynos_eint_gpio_init
,
193 .suspend
= exynos_pinctrl_suspend
,
194 .resume
= exynos_pinctrl_resume
,
195 .retention_data
= &exynos5433_audio_retention_data
,
197 /* pin-controller instance 2 data */
198 .pin_banks
= exynos5433_pin_banks2
,
199 .nr_banks
= ARRAY_SIZE(exynos5433_pin_banks2
),
200 .eint_gpio_init
= exynos_eint_gpio_init
,
201 .suspend
= exynos_pinctrl_suspend
,
202 .resume
= exynos_pinctrl_resume
,
203 .retention_data
= &exynos5433_retention_data
,
205 /* pin-controller instance 3 data */
206 .pin_banks
= exynos5433_pin_banks3
,
207 .nr_banks
= ARRAY_SIZE(exynos5433_pin_banks3
),
208 .eint_gpio_init
= exynos_eint_gpio_init
,
209 .suspend
= exynos_pinctrl_suspend
,
210 .resume
= exynos_pinctrl_resume
,
211 .retention_data
= &exynos5433_retention_data
,
213 /* pin-controller instance 4 data */
214 .pin_banks
= exynos5433_pin_banks4
,
215 .nr_banks
= ARRAY_SIZE(exynos5433_pin_banks4
),
216 .eint_gpio_init
= exynos_eint_gpio_init
,
217 .suspend
= exynos_pinctrl_suspend
,
218 .resume
= exynos_pinctrl_resume
,
219 .retention_data
= &exynos5433_retention_data
,
221 /* pin-controller instance 5 data */
222 .pin_banks
= exynos5433_pin_banks5
,
223 .nr_banks
= ARRAY_SIZE(exynos5433_pin_banks5
),
224 .eint_gpio_init
= exynos_eint_gpio_init
,
225 .suspend
= exynos_pinctrl_suspend
,
226 .resume
= exynos_pinctrl_resume
,
227 .retention_data
= &exynos5433_fsys_retention_data
,
229 /* pin-controller instance 6 data */
230 .pin_banks
= exynos5433_pin_banks6
,
231 .nr_banks
= ARRAY_SIZE(exynos5433_pin_banks6
),
232 .eint_gpio_init
= exynos_eint_gpio_init
,
233 .suspend
= exynos_pinctrl_suspend
,
234 .resume
= exynos_pinctrl_resume
,
235 .retention_data
= &exynos5433_retention_data
,
237 /* pin-controller instance 7 data */
238 .pin_banks
= exynos5433_pin_banks7
,
239 .nr_banks
= ARRAY_SIZE(exynos5433_pin_banks7
),
240 .eint_gpio_init
= exynos_eint_gpio_init
,
241 .suspend
= exynos_pinctrl_suspend
,
242 .resume
= exynos_pinctrl_resume
,
243 .retention_data
= &exynos5433_retention_data
,
245 /* pin-controller instance 8 data */
246 .pin_banks
= exynos5433_pin_banks8
,
247 .nr_banks
= ARRAY_SIZE(exynos5433_pin_banks8
),
248 .eint_gpio_init
= exynos_eint_gpio_init
,
249 .suspend
= exynos_pinctrl_suspend
,
250 .resume
= exynos_pinctrl_resume
,
251 .retention_data
= &exynos5433_retention_data
,
253 /* pin-controller instance 9 data */
254 .pin_banks
= exynos5433_pin_banks9
,
255 .nr_banks
= ARRAY_SIZE(exynos5433_pin_banks9
),
256 .eint_gpio_init
= exynos_eint_gpio_init
,
257 .suspend
= exynos_pinctrl_suspend
,
258 .resume
= exynos_pinctrl_resume
,
259 .retention_data
= &exynos5433_retention_data
,
263 /* pin banks of exynos7 pin-controller - ALIVE */
264 static const struct samsung_pin_bank_data exynos7_pin_banks0
[] __initconst
= {
265 EXYNOS_PIN_BANK_EINTW(8, 0x000, "gpa0", 0x00),
266 EXYNOS_PIN_BANK_EINTW(8, 0x020, "gpa1", 0x04),
267 EXYNOS_PIN_BANK_EINTW(8, 0x040, "gpa2", 0x08),
268 EXYNOS_PIN_BANK_EINTW(8, 0x060, "gpa3", 0x0c),
271 /* pin banks of exynos7 pin-controller - BUS0 */
272 static const struct samsung_pin_bank_data exynos7_pin_banks1
[] __initconst
= {
273 EXYNOS_PIN_BANK_EINTG(5, 0x000, "gpb0", 0x00),
274 EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpc0", 0x04),
275 EXYNOS_PIN_BANK_EINTG(2, 0x040, "gpc1", 0x08),
276 EXYNOS_PIN_BANK_EINTG(6, 0x060, "gpc2", 0x0c),
277 EXYNOS_PIN_BANK_EINTG(8, 0x080, "gpc3", 0x10),
278 EXYNOS_PIN_BANK_EINTG(4, 0x0a0, "gpd0", 0x14),
279 EXYNOS_PIN_BANK_EINTG(6, 0x0c0, "gpd1", 0x18),
280 EXYNOS_PIN_BANK_EINTG(8, 0x0e0, "gpd2", 0x1c),
281 EXYNOS_PIN_BANK_EINTG(5, 0x100, "gpd4", 0x20),
282 EXYNOS_PIN_BANK_EINTG(4, 0x120, "gpd5", 0x24),
283 EXYNOS_PIN_BANK_EINTG(6, 0x140, "gpd6", 0x28),
284 EXYNOS_PIN_BANK_EINTG(3, 0x160, "gpd7", 0x2c),
285 EXYNOS_PIN_BANK_EINTG(2, 0x180, "gpd8", 0x30),
286 EXYNOS_PIN_BANK_EINTG(2, 0x1a0, "gpg0", 0x34),
287 EXYNOS_PIN_BANK_EINTG(4, 0x1c0, "gpg3", 0x38),
290 /* pin banks of exynos7 pin-controller - NFC */
291 static const struct samsung_pin_bank_data exynos7_pin_banks2
[] __initconst
= {
292 EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj0", 0x00),
295 /* pin banks of exynos7 pin-controller - TOUCH */
296 static const struct samsung_pin_bank_data exynos7_pin_banks3
[] __initconst
= {
297 EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj1", 0x00),
300 /* pin banks of exynos7 pin-controller - FF */
301 static const struct samsung_pin_bank_data exynos7_pin_banks4
[] __initconst
= {
302 EXYNOS_PIN_BANK_EINTG(4, 0x000, "gpg4", 0x00),
305 /* pin banks of exynos7 pin-controller - ESE */
306 static const struct samsung_pin_bank_data exynos7_pin_banks5
[] __initconst
= {
307 EXYNOS_PIN_BANK_EINTG(5, 0x000, "gpv7", 0x00),
310 /* pin banks of exynos7 pin-controller - FSYS0 */
311 static const struct samsung_pin_bank_data exynos7_pin_banks6
[] __initconst
= {
312 EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpr4", 0x00),
315 /* pin banks of exynos7 pin-controller - FSYS1 */
316 static const struct samsung_pin_bank_data exynos7_pin_banks7
[] __initconst
= {
317 EXYNOS_PIN_BANK_EINTG(4, 0x000, "gpr0", 0x00),
318 EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpr1", 0x04),
319 EXYNOS_PIN_BANK_EINTG(5, 0x040, "gpr2", 0x08),
320 EXYNOS_PIN_BANK_EINTG(8, 0x060, "gpr3", 0x0c),
323 /* pin banks of exynos7 pin-controller - BUS1 */
324 static const struct samsung_pin_bank_data exynos7_pin_banks8
[] __initconst
= {
325 EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpf0", 0x00),
326 EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpf1", 0x04),
327 EXYNOS_PIN_BANK_EINTG(4, 0x060, "gpf2", 0x08),
328 EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpf3", 0x0c),
329 EXYNOS_PIN_BANK_EINTG(8, 0x0a0, "gpf4", 0x10),
330 EXYNOS_PIN_BANK_EINTG(8, 0x0c0, "gpf5", 0x14),
331 EXYNOS_PIN_BANK_EINTG(5, 0x0e0, "gpg1", 0x18),
332 EXYNOS_PIN_BANK_EINTG(5, 0x100, "gpg2", 0x1c),
333 EXYNOS_PIN_BANK_EINTG(6, 0x120, "gph1", 0x20),
334 EXYNOS_PIN_BANK_EINTG(3, 0x140, "gpv6", 0x24),
337 static const struct samsung_pin_bank_data exynos7_pin_banks9
[] __initconst
= {
338 EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpz0", 0x00),
339 EXYNOS_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04),
342 const struct samsung_pin_ctrl exynos7_pin_ctrl
[] __initconst
= {
344 /* pin-controller instance 0 Alive data */
345 .pin_banks
= exynos7_pin_banks0
,
346 .nr_banks
= ARRAY_SIZE(exynos7_pin_banks0
),
347 .eint_wkup_init
= exynos_eint_wkup_init
,
349 /* pin-controller instance 1 BUS0 data */
350 .pin_banks
= exynos7_pin_banks1
,
351 .nr_banks
= ARRAY_SIZE(exynos7_pin_banks1
),
352 .eint_gpio_init
= exynos_eint_gpio_init
,
354 /* pin-controller instance 2 NFC data */
355 .pin_banks
= exynos7_pin_banks2
,
356 .nr_banks
= ARRAY_SIZE(exynos7_pin_banks2
),
357 .eint_gpio_init
= exynos_eint_gpio_init
,
359 /* pin-controller instance 3 TOUCH data */
360 .pin_banks
= exynos7_pin_banks3
,
361 .nr_banks
= ARRAY_SIZE(exynos7_pin_banks3
),
362 .eint_gpio_init
= exynos_eint_gpio_init
,
364 /* pin-controller instance 4 FF data */
365 .pin_banks
= exynos7_pin_banks4
,
366 .nr_banks
= ARRAY_SIZE(exynos7_pin_banks4
),
367 .eint_gpio_init
= exynos_eint_gpio_init
,
369 /* pin-controller instance 5 ESE data */
370 .pin_banks
= exynos7_pin_banks5
,
371 .nr_banks
= ARRAY_SIZE(exynos7_pin_banks5
),
372 .eint_gpio_init
= exynos_eint_gpio_init
,
374 /* pin-controller instance 6 FSYS0 data */
375 .pin_banks
= exynos7_pin_banks6
,
376 .nr_banks
= ARRAY_SIZE(exynos7_pin_banks6
),
377 .eint_gpio_init
= exynos_eint_gpio_init
,
379 /* pin-controller instance 7 FSYS1 data */
380 .pin_banks
= exynos7_pin_banks7
,
381 .nr_banks
= ARRAY_SIZE(exynos7_pin_banks7
),
382 .eint_gpio_init
= exynos_eint_gpio_init
,
384 /* pin-controller instance 8 BUS1 data */
385 .pin_banks
= exynos7_pin_banks8
,
386 .nr_banks
= ARRAY_SIZE(exynos7_pin_banks8
),
387 .eint_gpio_init
= exynos_eint_gpio_init
,
389 /* pin-controller instance 9 AUD data */
390 .pin_banks
= exynos7_pin_banks9
,
391 .nr_banks
= ARRAY_SIZE(exynos7_pin_banks9
),
392 .eint_gpio_init
= exynos_eint_gpio_init
,