1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (c) 2014 MediaTek Inc.
4 * Author: Hongzhou.Yang <hongzhou.yang@mediatek.com>
5 */
6
7#include <linux/init.h>
8#include <linux/platform_device.h>
9#include <linux/of.h>
10#include <linux/pinctrl/pinctrl.h>
11#include <linux/regmap.h>
12#include <dt-bindings/pinctrl/mt65xx.h>
13
14#include "pinctrl-mtk-common.h"
15#include "pinctrl-mtk-mt8135.h"
16
17#define DRV_BASE1 0x500
18#define DRV_BASE2 0x510
19#define PUPD_BASE1 0x400
20#define PUPD_BASE2 0x450
21#define R0_BASE1 0x4d0
22#define R1_BASE1 0x200
23#define R1_BASE2 0x250
24
25struct mtk_spec_pull_set {
26 unsigned char pin;
27 unsigned char pupd_bit;
28 unsigned short pupd_offset;
29 unsigned short r0_offset;
30 unsigned short r1_offset;
31 unsigned char r0_bit;
32 unsigned char r1_bit;
33};
34
35#define SPEC_PULL(_pin, _pupd_offset, _pupd_bit, _r0_offset, \
36 _r0_bit, _r1_offset, _r1_bit) \
37 { \
38 .pin = _pin, \
39 .pupd_offset = _pupd_offset, \
40 .pupd_bit = _pupd_bit, \
41 .r0_offset = _r0_offset, \
42 .r0_bit = _r0_bit, \
43 .r1_offset = _r1_offset, \
44 .r1_bit = _r1_bit, \
45 }
46
47static const struct mtk_drv_group_desc mt8135_drv_grp[] = {
48 /* E8E4E2 2/4/6/8/10/12/14/16 */
49 MTK_DRV_GRP(2, 16, 0, 2, 2),
50 /* E8E4 4/8/12/16 */
51 MTK_DRV_GRP(4, 16, 1, 2, 4),
52 /* E4E2 2/4/6/8 */
53 MTK_DRV_GRP(2, 8, 0, 1, 2),
54 /* E16E8E4 4/8/12/16/20/24/28/32 */
55 MTK_DRV_GRP(4, 32, 0, 2, 4)
56};
57
58static const struct mtk_pin_drv_grp mt8135_pin_drv[] = {
59 MTK_PIN_DRV_GRP(0, DRV_BASE1, 0, 0),
60 MTK_PIN_DRV_GRP(1, DRV_BASE1, 0, 0),
61 MTK_PIN_DRV_GRP(2, DRV_BASE1, 0, 0),
62 MTK_PIN_DRV_GRP(3, DRV_BASE1, 0, 0),
63 MTK_PIN_DRV_GRP(4, DRV_BASE1, 4, 0),
64 MTK_PIN_DRV_GRP(5, DRV_BASE1, 8, 0),
65 MTK_PIN_DRV_GRP(6, DRV_BASE1, 0, 0),
66 MTK_PIN_DRV_GRP(7, DRV_BASE1, 0, 0),
67 MTK_PIN_DRV_GRP(8, DRV_BASE1, 0, 0),
68 MTK_PIN_DRV_GRP(9, DRV_BASE1, 0, 0),
69
70 MTK_PIN_DRV_GRP(10, DRV_BASE1, 12, 1),
71 MTK_PIN_DRV_GRP(11, DRV_BASE1, 12, 1),
72 MTK_PIN_DRV_GRP(12, DRV_BASE1, 12, 1),
73 MTK_PIN_DRV_GRP(13, DRV_BASE1, 12, 1),
74 MTK_PIN_DRV_GRP(14, DRV_BASE1, 12, 1),
75 MTK_PIN_DRV_GRP(15, DRV_BASE1, 12, 1),
76 MTK_PIN_DRV_GRP(16, DRV_BASE1, 12, 1),
77 MTK_PIN_DRV_GRP(17, DRV_BASE1, 16, 1),
78 MTK_PIN_DRV_GRP(18, DRV_BASE1, 16, 1),
79 MTK_PIN_DRV_GRP(19, DRV_BASE1, 16, 1),
80 MTK_PIN_DRV_GRP(20, DRV_BASE1, 16, 1),
81 MTK_PIN_DRV_GRP(21, DRV_BASE1, 16, 1),
82 MTK_PIN_DRV_GRP(22, DRV_BASE1, 16, 1),
83 MTK_PIN_DRV_GRP(23, DRV_BASE1, 16, 1),
84 MTK_PIN_DRV_GRP(24, DRV_BASE1, 16, 1),
85 MTK_PIN_DRV_GRP(33, DRV_BASE1, 24, 1),
86 MTK_PIN_DRV_GRP(34, DRV_BASE2, 12, 2),
87 MTK_PIN_DRV_GRP(37, DRV_BASE2, 20, 1),
88 MTK_PIN_DRV_GRP(38, DRV_BASE2, 20, 1),
89 MTK_PIN_DRV_GRP(39, DRV_BASE2, 20, 1),
90 MTK_PIN_DRV_GRP(40, DRV_BASE2, 24, 1),
91 MTK_PIN_DRV_GRP(41, DRV_BASE2, 24, 1),
92 MTK_PIN_DRV_GRP(42, DRV_BASE2, 24, 1),
93 MTK_PIN_DRV_GRP(43, DRV_BASE2, 28, 1),
94 MTK_PIN_DRV_GRP(44, DRV_BASE2, 28, 1),
95 MTK_PIN_DRV_GRP(45, DRV_BASE2, 28, 1),
96 MTK_PIN_DRV_GRP(46, DRV_BASE2, 28, 1),
97 MTK_PIN_DRV_GRP(47, DRV_BASE2, 28, 1),
98
99 MTK_PIN_DRV_GRP(49, DRV_BASE2+0x10, 0, 1),
100 MTK_PIN_DRV_GRP(50, DRV_BASE2+0x10, 4, 1),
101 MTK_PIN_DRV_GRP(51, DRV_BASE2+0x10, 8, 1),
102 MTK_PIN_DRV_GRP(52, DRV_BASE2+0x10, 12, 2),
103 MTK_PIN_DRV_GRP(53, DRV_BASE2+0x10, 16, 1),
104 MTK_PIN_DRV_GRP(54, DRV_BASE2+0x10, 20, 1),
105 MTK_PIN_DRV_GRP(55, DRV_BASE2+0x10, 24, 1),
106 MTK_PIN_DRV_GRP(56, DRV_BASE2+0x10, 28, 1),
107
108 MTK_PIN_DRV_GRP(57, DRV_BASE2+0x20, 0, 1),
109 MTK_PIN_DRV_GRP(58, DRV_BASE2+0x20, 0, 1),
110 MTK_PIN_DRV_GRP(59, DRV_BASE2+0x20, 0, 1),
111 MTK_PIN_DRV_GRP(60, DRV_BASE2+0x20, 0, 1),
112 MTK_PIN_DRV_GRP(61, DRV_BASE2+0x20, 0, 1),
113 MTK_PIN_DRV_GRP(62, DRV_BASE2+0x20, 0, 1),
114 MTK_PIN_DRV_GRP(63, DRV_BASE2+0x20, 4, 1),
115 MTK_PIN_DRV_GRP(64, DRV_BASE2+0x20, 8, 1),
116 MTK_PIN_DRV_GRP(65, DRV_BASE2+0x20, 12, 1),
117 MTK_PIN_DRV_GRP(66, DRV_BASE2+0x20, 16, 1),
118 MTK_PIN_DRV_GRP(67, DRV_BASE2+0x20, 20, 1),
119 MTK_PIN_DRV_GRP(68, DRV_BASE2+0x20, 24, 1),
120 MTK_PIN_DRV_GRP(69, DRV_BASE2+0x20, 28, 1),
121
122 MTK_PIN_DRV_GRP(70, DRV_BASE2+0x30, 0, 1),
123 MTK_PIN_DRV_GRP(71, DRV_BASE2+0x30, 4, 1),
124 MTK_PIN_DRV_GRP(72, DRV_BASE2+0x30, 8, 1),
125 MTK_PIN_DRV_GRP(73, DRV_BASE2+0x30, 12, 1),
126 MTK_PIN_DRV_GRP(74, DRV_BASE2+0x30, 16, 1),
127 MTK_PIN_DRV_GRP(75, DRV_BASE2+0x30, 20, 1),
128 MTK_PIN_DRV_GRP(76, DRV_BASE2+0x30, 24, 1),
129 MTK_PIN_DRV_GRP(77, DRV_BASE2+0x30, 28, 3),
130 MTK_PIN_DRV_GRP(78, DRV_BASE2+0x30, 28, 3),
131
132 MTK_PIN_DRV_GRP(79, DRV_BASE2+0x40, 0, 3),
133 MTK_PIN_DRV_GRP(80, DRV_BASE2+0x40, 4, 3),
134
135 MTK_PIN_DRV_GRP(81, DRV_BASE2+0x30, 28, 3),
136 MTK_PIN_DRV_GRP(82, DRV_BASE2+0x30, 28, 3),
137
138 MTK_PIN_DRV_GRP(83, DRV_BASE2+0x40, 8, 3),
139 MTK_PIN_DRV_GRP(84, DRV_BASE2+0x40, 8, 3),
140 MTK_PIN_DRV_GRP(85, DRV_BASE2+0x40, 12, 3),
141 MTK_PIN_DRV_GRP(86, DRV_BASE2+0x40, 16, 3),
142 MTK_PIN_DRV_GRP(87, DRV_BASE2+0x40, 8, 3),
143 MTK_PIN_DRV_GRP(88, DRV_BASE2+0x40, 8, 3),
144
145 MTK_PIN_DRV_GRP(89, DRV_BASE2+0x50, 12, 0),
146 MTK_PIN_DRV_GRP(90, DRV_BASE2+0x50, 12, 0),
147 MTK_PIN_DRV_GRP(91, DRV_BASE2+0x50, 12, 0),
148 MTK_PIN_DRV_GRP(92, DRV_BASE2+0x50, 12, 0),
149 MTK_PIN_DRV_GRP(93, DRV_BASE2+0x50, 12, 0),
150 MTK_PIN_DRV_GRP(94, DRV_BASE2+0x50, 12, 0),
151 MTK_PIN_DRV_GRP(95, DRV_BASE2+0x50, 12, 0),
152
153 MTK_PIN_DRV_GRP(96, DRV_BASE1+0xb0, 28, 0),
154
155 MTK_PIN_DRV_GRP(97, DRV_BASE2+0x50, 12, 0),
156 MTK_PIN_DRV_GRP(98, DRV_BASE2+0x50, 16, 0),
157 MTK_PIN_DRV_GRP(99, DRV_BASE2+0x50, 20, 1),
158 MTK_PIN_DRV_GRP(102, DRV_BASE2+0x50, 24, 1),
159 MTK_PIN_DRV_GRP(103, DRV_BASE2+0x50, 28, 1),
160
161
162 MTK_PIN_DRV_GRP(104, DRV_BASE2+0x60, 0, 1),
163 MTK_PIN_DRV_GRP(105, DRV_BASE2+0x60, 4, 1),
164 MTK_PIN_DRV_GRP(106, DRV_BASE2+0x60, 4, 1),
165 MTK_PIN_DRV_GRP(107, DRV_BASE2+0x60, 4, 1),
166 MTK_PIN_DRV_GRP(108, DRV_BASE2+0x60, 4, 1),
167 MTK_PIN_DRV_GRP(109, DRV_BASE2+0x60, 8, 2),
168 MTK_PIN_DRV_GRP(110, DRV_BASE2+0x60, 12, 2),
169 MTK_PIN_DRV_GRP(111, DRV_BASE2+0x60, 16, 2),
170 MTK_PIN_DRV_GRP(112, DRV_BASE2+0x60, 20, 2),
171 MTK_PIN_DRV_GRP(113, DRV_BASE2+0x60, 24, 2),
172 MTK_PIN_DRV_GRP(114, DRV_BASE2+0x60, 28, 2),
173
174 MTK_PIN_DRV_GRP(115, DRV_BASE2+0x70, 0, 2),
175 MTK_PIN_DRV_GRP(116, DRV_BASE2+0x70, 4, 2),
176 MTK_PIN_DRV_GRP(117, DRV_BASE2+0x70, 8, 2),
177 MTK_PIN_DRV_GRP(118, DRV_BASE2+0x70, 12, 2),
178 MTK_PIN_DRV_GRP(119, DRV_BASE2+0x70, 16, 2),
179 MTK_PIN_DRV_GRP(120, DRV_BASE2+0x70, 20, 2),
180
181 MTK_PIN_DRV_GRP(181, DRV_BASE1+0xa0, 12, 1),
182 MTK_PIN_DRV_GRP(182, DRV_BASE1+0xa0, 16, 1),
183 MTK_PIN_DRV_GRP(183, DRV_BASE1+0xa0, 20, 1),
184 MTK_PIN_DRV_GRP(184, DRV_BASE1+0xa0, 24, 1),
185 MTK_PIN_DRV_GRP(185, DRV_BASE1+0xa0, 28, 1),
186
187 MTK_PIN_DRV_GRP(186, DRV_BASE1+0xb0, 0, 2),
188 MTK_PIN_DRV_GRP(187, DRV_BASE1+0xb0, 0, 2),
189 MTK_PIN_DRV_GRP(188, DRV_BASE1+0xb0, 0, 2),
190 MTK_PIN_DRV_GRP(189, DRV_BASE1+0xb0, 0, 2),
191 MTK_PIN_DRV_GRP(190, DRV_BASE1+0xb0, 4, 1),
192 MTK_PIN_DRV_GRP(191, DRV_BASE1+0xb0, 8, 1),
193 MTK_PIN_DRV_GRP(192, DRV_BASE1+0xb0, 12, 1),
194
195 MTK_PIN_DRV_GRP(197, DRV_BASE1+0xb0, 16, 0),
196 MTK_PIN_DRV_GRP(198, DRV_BASE1+0xb0, 16, 0),
197 MTK_PIN_DRV_GRP(199, DRV_BASE1+0xb0, 20, 0),
198 MTK_PIN_DRV_GRP(200, DRV_BASE1+0xb0, 24, 0),
199 MTK_PIN_DRV_GRP(201, DRV_BASE1+0xb0, 16, 0),
200 MTK_PIN_DRV_GRP(202, DRV_BASE1+0xb0, 16, 0)
201};
202
203static const struct mtk_spec_pull_set spec_pupd[] = {
204 SPEC_PULL(0, PUPD_BASE1, 0, R0_BASE1, 9, R1_BASE1, 0),
205 SPEC_PULL(1, PUPD_BASE1, 1, R0_BASE1, 8, R1_BASE1, 1),
206 SPEC_PULL(2, PUPD_BASE1, 2, R0_BASE1, 7, R1_BASE1, 2),
207 SPEC_PULL(3, PUPD_BASE1, 3, R0_BASE1, 6, R1_BASE1, 3),
208 SPEC_PULL(4, PUPD_BASE1, 4, R0_BASE1, 1, R1_BASE1, 4),
209 SPEC_PULL(5, PUPD_BASE1, 5, R0_BASE1, 0, R1_BASE1, 5),
210 SPEC_PULL(6, PUPD_BASE1, 6, R0_BASE1, 5, R1_BASE1, 6),
211 SPEC_PULL(7, PUPD_BASE1, 7, R0_BASE1, 4, R1_BASE1, 7),
212 SPEC_PULL(8, PUPD_BASE1, 8, R0_BASE1, 3, R1_BASE1, 8),
213 SPEC_PULL(9, PUPD_BASE1, 9, R0_BASE1, 2, R1_BASE1, 9),
214 SPEC_PULL(89, PUPD_BASE2, 9, R0_BASE1, 18, R1_BASE2, 9),
215 SPEC_PULL(90, PUPD_BASE2, 10, R0_BASE1, 19, R1_BASE2, 10),
216 SPEC_PULL(91, PUPD_BASE2, 11, R0_BASE1, 23, R1_BASE2, 11),
217 SPEC_PULL(92, PUPD_BASE2, 12, R0_BASE1, 24, R1_BASE2, 12),
218 SPEC_PULL(93, PUPD_BASE2, 13, R0_BASE1, 25, R1_BASE2, 13),
219 SPEC_PULL(94, PUPD_BASE2, 14, R0_BASE1, 22, R1_BASE2, 14),
220 SPEC_PULL(95, PUPD_BASE2, 15, R0_BASE1, 20, R1_BASE2, 15),
221 SPEC_PULL(96, PUPD_BASE2+0x10, 0, R0_BASE1, 16, R1_BASE2+0x10, 0),
222 SPEC_PULL(97, PUPD_BASE2+0x10, 1, R0_BASE1, 21, R1_BASE2+0x10, 1),
223 SPEC_PULL(98, PUPD_BASE2+0x10, 2, R0_BASE1, 17, R1_BASE2+0x10, 2),
224 SPEC_PULL(197, PUPD_BASE1+0xc0, 5, R0_BASE1, 13, R1_BASE2+0xc0, 5),
225 SPEC_PULL(198, PUPD_BASE2+0xc0, 6, R0_BASE1, 14, R1_BASE2+0xc0, 6),
226 SPEC_PULL(199, PUPD_BASE2+0xc0, 7, R0_BASE1, 11, R1_BASE2+0xc0, 7),
227 SPEC_PULL(200, PUPD_BASE2+0xc0, 8, R0_BASE1, 10, R1_BASE2+0xc0, 8),
228 SPEC_PULL(201, PUPD_BASE2+0xc0, 9, R0_BASE1, 13, R1_BASE2+0xc0, 9),
229 SPEC_PULL(202, PUPD_BASE2+0xc0, 10, R0_BASE1, 12, R1_BASE2+0xc0, 10)
230};
231
232static int spec_pull_set(struct regmap *regmap,
233 const struct mtk_pinctrl_devdata *devdata,
234 unsigned int pin, bool isup, unsigned int r1r0)
235{
236 unsigned int i;
237 unsigned int reg_pupd, reg_set_r0, reg_set_r1;
238 unsigned int reg_rst_r0, reg_rst_r1;
239 unsigned char align = devdata->port_align;
240 bool find = false;
241
242 for (i = 0; i < ARRAY_SIZE(spec_pupd); i++) {
243 if (pin == spec_pupd[i].pin) {
244 find = true;
245 break;
246 }
247 }
248
249 if (!find)
250 return -EINVAL;
251
252 if (isup)
253 reg_pupd = spec_pupd[i].pupd_offset + align;
254 else
255 reg_pupd = spec_pupd[i].pupd_offset + (align << 1);
256
257 regmap_write(map: regmap, reg: reg_pupd, val: spec_pupd[i].pupd_bit);
258
259 reg_set_r0 = spec_pupd[i].r0_offset + align;
260 reg_rst_r0 = spec_pupd[i].r0_offset + (align << 1);
261 reg_set_r1 = spec_pupd[i].r1_offset + align;
262 reg_rst_r1 = spec_pupd[i].r1_offset + (align << 1);
263
264 switch (r1r0) {
265 case MTK_PUPD_SET_R1R0_00:
266 regmap_write(map: regmap, reg: reg_rst_r0, val: spec_pupd[i].r0_bit);
267 regmap_write(map: regmap, reg: reg_rst_r1, val: spec_pupd[i].r1_bit);
268 break;
269 case MTK_PUPD_SET_R1R0_01:
270 regmap_write(map: regmap, reg: reg_set_r0, val: spec_pupd[i].r0_bit);
271 regmap_write(map: regmap, reg: reg_rst_r1, val: spec_pupd[i].r1_bit);
272 break;
273 case MTK_PUPD_SET_R1R0_10:
274 regmap_write(map: regmap, reg: reg_rst_r0, val: spec_pupd[i].r0_bit);
275 regmap_write(map: regmap, reg: reg_set_r1, val: spec_pupd[i].r1_bit);
276 break;
277 case MTK_PUPD_SET_R1R0_11:
278 regmap_write(map: regmap, reg: reg_set_r0, val: spec_pupd[i].r0_bit);
279 regmap_write(map: regmap, reg: reg_set_r1, val: spec_pupd[i].r1_bit);
280 break;
281 default:
282 return -EINVAL;
283 }
284
285 return 0;
286}
287
288static const struct mtk_pinctrl_devdata mt8135_pinctrl_data = {
289 .pins = mtk_pins_mt8135,
290 .npins = ARRAY_SIZE(mtk_pins_mt8135),
291 .grp_desc = mt8135_drv_grp,
292 .n_grp_cls = ARRAY_SIZE(mt8135_drv_grp),
293 .pin_drv_grp = mt8135_pin_drv,
294 .n_pin_drv_grps = ARRAY_SIZE(mt8135_pin_drv),
295 .spec_pull_set = spec_pull_set,
296 .dir_offset = 0x0000,
297 .ies_offset = 0x0100,
298 .pullen_offset = 0x0200,
299 .smt_offset = 0x0300,
300 .pullsel_offset = 0x0400,
301 .dout_offset = 0x0800,
302 .din_offset = 0x0A00,
303 .pinmux_offset = 0x0C00,
304 .type1_start = 34,
305 .type1_end = 149,
306 .port_shf = 4,
307 .port_mask = 0xf,
308 .port_align = 4,
309 .mode_mask = 0xf,
310 .mode_per_reg = 5,
311 .mode_shf = 4,
312 .eint_hw = {
313 .port_mask = 7,
314 .ports = 6,
315 .ap_num = 192,
316 .db_cnt = 16,
317 .db_time = debounce_time_mt2701,
318 },
319};
320
321static const struct of_device_id mt8135_pctrl_match[] = {
322 { .compatible = "mediatek,mt8135-pinctrl", .data = &mt8135_pinctrl_data },
323 { }
324};
325
326static struct platform_driver mtk_pinctrl_driver = {
327 .probe = mtk_pctrl_common_probe,
328 .driver = {
329 .name = "mediatek-mt8135-pinctrl",
330 .of_match_table = mt8135_pctrl_match,
331 },
332};
333
334static int __init mtk_pinctrl_init(void)
335{
336 return platform_driver_register(&mtk_pinctrl_driver);
337}
338arch_initcall(mtk_pinctrl_init);
339

source code of linux/drivers/pinctrl/mediatek/pinctrl-mt8135.c