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/of_device.h>
11 #include <linux/pinctrl/pinctrl.h>
12 #include <linux/regmap.h>
13 #include <dt-bindings/pinctrl/mt65xx.h>
14
15 #include "pinctrl-mtk-common.h"
16 #include "pinctrl-mtk-mt8135.h"
17
18 #define DRV_BASE1 0x500
19 #define DRV_BASE2 0x510
20 #define PUPD_BASE1 0x400
21 #define PUPD_BASE2 0x450
22 #define R0_BASE1 0x4d0
23 #define R1_BASE1 0x200
24 #define R1_BASE2 0x250
25
26 struct mtk_spec_pull_set {
27 unsigned char pin;
28 unsigned char pupd_bit;
29 unsigned short pupd_offset;
30 unsigned short r0_offset;
31 unsigned short r1_offset;
32 unsigned char r0_bit;
33 unsigned char r1_bit;
34 };
35
36 #define SPEC_PULL(_pin, _pupd_offset, _pupd_bit, _r0_offset, \
37 _r0_bit, _r1_offset, _r1_bit) \
38 { \
39 .pin = _pin, \
40 .pupd_offset = _pupd_offset, \
41 .pupd_bit = _pupd_bit, \
42 .r0_offset = _r0_offset, \
43 .r0_bit = _r0_bit, \
44 .r1_offset = _r1_offset, \
45 .r1_bit = _r1_bit, \
46 }
47
48 static const struct mtk_drv_group_desc mt8135_drv_grp[] = {
49 /* E8E4E2 2/4/6/8/10/12/14/16 */
50 MTK_DRV_GRP(2, 16, 0, 2, 2),
51 /* E8E4 4/8/12/16 */
52 MTK_DRV_GRP(4, 16, 1, 2, 4),
53 /* E4E2 2/4/6/8 */
54 MTK_DRV_GRP(2, 8, 0, 1, 2),
55 /* E16E8E4 4/8/12/16/20/24/28/32 */
56 MTK_DRV_GRP(4, 32, 0, 2, 4)
57 };
58
59 static const struct mtk_pin_drv_grp mt8135_pin_drv[] = {
60 MTK_PIN_DRV_GRP(0, DRV_BASE1, 0, 0),
61 MTK_PIN_DRV_GRP(1, DRV_BASE1, 0, 0),
62 MTK_PIN_DRV_GRP(2, DRV_BASE1, 0, 0),
63 MTK_PIN_DRV_GRP(3, DRV_BASE1, 0, 0),
64 MTK_PIN_DRV_GRP(4, DRV_BASE1, 4, 0),
65 MTK_PIN_DRV_GRP(5, DRV_BASE1, 8, 0),
66 MTK_PIN_DRV_GRP(6, DRV_BASE1, 0, 0),
67 MTK_PIN_DRV_GRP(7, DRV_BASE1, 0, 0),
68 MTK_PIN_DRV_GRP(8, DRV_BASE1, 0, 0),
69 MTK_PIN_DRV_GRP(9, DRV_BASE1, 0, 0),
70
71 MTK_PIN_DRV_GRP(10, DRV_BASE1, 12, 1),
72 MTK_PIN_DRV_GRP(11, DRV_BASE1, 12, 1),
73 MTK_PIN_DRV_GRP(12, DRV_BASE1, 12, 1),
74 MTK_PIN_DRV_GRP(13, DRV_BASE1, 12, 1),
75 MTK_PIN_DRV_GRP(14, DRV_BASE1, 12, 1),
76 MTK_PIN_DRV_GRP(15, DRV_BASE1, 12, 1),
77 MTK_PIN_DRV_GRP(16, DRV_BASE1, 12, 1),
78 MTK_PIN_DRV_GRP(17, DRV_BASE1, 16, 1),
79 MTK_PIN_DRV_GRP(18, DRV_BASE1, 16, 1),
80 MTK_PIN_DRV_GRP(19, DRV_BASE1, 16, 1),
81 MTK_PIN_DRV_GRP(20, DRV_BASE1, 16, 1),
82 MTK_PIN_DRV_GRP(21, DRV_BASE1, 16, 1),
83 MTK_PIN_DRV_GRP(22, DRV_BASE1, 16, 1),
84 MTK_PIN_DRV_GRP(23, DRV_BASE1, 16, 1),
85 MTK_PIN_DRV_GRP(24, DRV_BASE1, 16, 1),
86 MTK_PIN_DRV_GRP(33, DRV_BASE1, 24, 1),
87 MTK_PIN_DRV_GRP(34, DRV_BASE2, 12, 2),
88 MTK_PIN_DRV_GRP(37, DRV_BASE2, 20, 1),
89 MTK_PIN_DRV_GRP(38, DRV_BASE2, 20, 1),
90 MTK_PIN_DRV_GRP(39, DRV_BASE2, 20, 1),
91 MTK_PIN_DRV_GRP(40, DRV_BASE2, 24, 1),
92 MTK_PIN_DRV_GRP(41, DRV_BASE2, 24, 1),
93 MTK_PIN_DRV_GRP(42, DRV_BASE2, 24, 1),
94 MTK_PIN_DRV_GRP(43, DRV_BASE2, 28, 1),
95 MTK_PIN_DRV_GRP(44, DRV_BASE2, 28, 1),
96 MTK_PIN_DRV_GRP(45, DRV_BASE2, 28, 1),
97 MTK_PIN_DRV_GRP(46, DRV_BASE2, 28, 1),
98 MTK_PIN_DRV_GRP(47, DRV_BASE2, 28, 1),
99
100 MTK_PIN_DRV_GRP(49, DRV_BASE2+0x10, 0, 1),
101 MTK_PIN_DRV_GRP(50, DRV_BASE2+0x10, 4, 1),
102 MTK_PIN_DRV_GRP(51, DRV_BASE2+0x10, 8, 1),
103 MTK_PIN_DRV_GRP(52, DRV_BASE2+0x10, 12, 2),
104 MTK_PIN_DRV_GRP(53, DRV_BASE2+0x10, 16, 1),
105 MTK_PIN_DRV_GRP(54, DRV_BASE2+0x10, 20, 1),
106 MTK_PIN_DRV_GRP(55, DRV_BASE2+0x10, 24, 1),
107 MTK_PIN_DRV_GRP(56, DRV_BASE2+0x10, 28, 1),
108
109 MTK_PIN_DRV_GRP(57, DRV_BASE2+0x20, 0, 1),
110 MTK_PIN_DRV_GRP(58, DRV_BASE2+0x20, 0, 1),
111 MTK_PIN_DRV_GRP(59, DRV_BASE2+0x20, 0, 1),
112 MTK_PIN_DRV_GRP(60, DRV_BASE2+0x20, 0, 1),
113 MTK_PIN_DRV_GRP(61, DRV_BASE2+0x20, 0, 1),
114 MTK_PIN_DRV_GRP(62, DRV_BASE2+0x20, 0, 1),
115 MTK_PIN_DRV_GRP(63, DRV_BASE2+0x20, 4, 1),
116 MTK_PIN_DRV_GRP(64, DRV_BASE2+0x20, 8, 1),
117 MTK_PIN_DRV_GRP(65, DRV_BASE2+0x20, 12, 1),
118 MTK_PIN_DRV_GRP(66, DRV_BASE2+0x20, 16, 1),
119 MTK_PIN_DRV_GRP(67, DRV_BASE2+0x20, 20, 1),
120 MTK_PIN_DRV_GRP(68, DRV_BASE2+0x20, 24, 1),
121 MTK_PIN_DRV_GRP(69, DRV_BASE2+0x20, 28, 1),
122
123 MTK_PIN_DRV_GRP(70, DRV_BASE2+0x30, 0, 1),
124 MTK_PIN_DRV_GRP(71, DRV_BASE2+0x30, 4, 1),
125 MTK_PIN_DRV_GRP(72, DRV_BASE2+0x30, 8, 1),
126 MTK_PIN_DRV_GRP(73, DRV_BASE2+0x30, 12, 1),
127 MTK_PIN_DRV_GRP(74, DRV_BASE2+0x30, 16, 1),
128 MTK_PIN_DRV_GRP(75, DRV_BASE2+0x30, 20, 1),
129 MTK_PIN_DRV_GRP(76, DRV_BASE2+0x30, 24, 1),
130 MTK_PIN_DRV_GRP(77, DRV_BASE2+0x30, 28, 3),
131 MTK_PIN_DRV_GRP(78, DRV_BASE2+0x30, 28, 3),
132
133 MTK_PIN_DRV_GRP(79, DRV_BASE2+0x40, 0, 3),
134 MTK_PIN_DRV_GRP(80, DRV_BASE2+0x40, 4, 3),
135
136 MTK_PIN_DRV_GRP(81, DRV_BASE2+0x30, 28, 3),
137 MTK_PIN_DRV_GRP(82, DRV_BASE2+0x30, 28, 3),
138
139 MTK_PIN_DRV_GRP(83, DRV_BASE2+0x40, 8, 3),
140 MTK_PIN_DRV_GRP(84, DRV_BASE2+0x40, 8, 3),
141 MTK_PIN_DRV_GRP(85, DRV_BASE2+0x40, 12, 3),
142 MTK_PIN_DRV_GRP(86, DRV_BASE2+0x40, 16, 3),
143 MTK_PIN_DRV_GRP(87, DRV_BASE2+0x40, 8, 3),
144 MTK_PIN_DRV_GRP(88, DRV_BASE2+0x40, 8, 3),
145
146 MTK_PIN_DRV_GRP(89, DRV_BASE2+0x50, 12, 0),
147 MTK_PIN_DRV_GRP(90, DRV_BASE2+0x50, 12, 0),
148 MTK_PIN_DRV_GRP(91, DRV_BASE2+0x50, 12, 0),
149 MTK_PIN_DRV_GRP(92, DRV_BASE2+0x50, 12, 0),
150 MTK_PIN_DRV_GRP(93, DRV_BASE2+0x50, 12, 0),
151 MTK_PIN_DRV_GRP(94, DRV_BASE2+0x50, 12, 0),
152 MTK_PIN_DRV_GRP(95, DRV_BASE2+0x50, 12, 0),
153
154 MTK_PIN_DRV_GRP(96, DRV_BASE1+0xb0, 28, 0),
155
156 MTK_PIN_DRV_GRP(97, DRV_BASE2+0x50, 12, 0),
157 MTK_PIN_DRV_GRP(98, DRV_BASE2+0x50, 16, 0),
158 MTK_PIN_DRV_GRP(99, DRV_BASE2+0x50, 20, 1),
159 MTK_PIN_DRV_GRP(102, DRV_BASE2+0x50, 24, 1),
160 MTK_PIN_DRV_GRP(103, DRV_BASE2+0x50, 28, 1),
161
162
163 MTK_PIN_DRV_GRP(104, DRV_BASE2+0x60, 0, 1),
164 MTK_PIN_DRV_GRP(105, DRV_BASE2+0x60, 4, 1),
165 MTK_PIN_DRV_GRP(106, DRV_BASE2+0x60, 4, 1),
166 MTK_PIN_DRV_GRP(107, DRV_BASE2+0x60, 4, 1),
167 MTK_PIN_DRV_GRP(108, DRV_BASE2+0x60, 4, 1),
168 MTK_PIN_DRV_GRP(109, DRV_BASE2+0x60, 8, 2),
169 MTK_PIN_DRV_GRP(110, DRV_BASE2+0x60, 12, 2),
170 MTK_PIN_DRV_GRP(111, DRV_BASE2+0x60, 16, 2),
171 MTK_PIN_DRV_GRP(112, DRV_BASE2+0x60, 20, 2),
172 MTK_PIN_DRV_GRP(113, DRV_BASE2+0x60, 24, 2),
173 MTK_PIN_DRV_GRP(114, DRV_BASE2+0x60, 28, 2),
174
175 MTK_PIN_DRV_GRP(115, DRV_BASE2+0x70, 0, 2),
176 MTK_PIN_DRV_GRP(116, DRV_BASE2+0x70, 4, 2),
177 MTK_PIN_DRV_GRP(117, DRV_BASE2+0x70, 8, 2),
178 MTK_PIN_DRV_GRP(118, DRV_BASE2+0x70, 12, 2),
179 MTK_PIN_DRV_GRP(119, DRV_BASE2+0x70, 16, 2),
180 MTK_PIN_DRV_GRP(120, DRV_BASE2+0x70, 20, 2),
181
182 MTK_PIN_DRV_GRP(181, DRV_BASE1+0xa0, 12, 1),
183 MTK_PIN_DRV_GRP(182, DRV_BASE1+0xa0, 16, 1),
184 MTK_PIN_DRV_GRP(183, DRV_BASE1+0xa0, 20, 1),
185 MTK_PIN_DRV_GRP(184, DRV_BASE1+0xa0, 24, 1),
186 MTK_PIN_DRV_GRP(185, DRV_BASE1+0xa0, 28, 1),
187
188 MTK_PIN_DRV_GRP(186, DRV_BASE1+0xb0, 0, 2),
189 MTK_PIN_DRV_GRP(187, DRV_BASE1+0xb0, 0, 2),
190 MTK_PIN_DRV_GRP(188, DRV_BASE1+0xb0, 0, 2),
191 MTK_PIN_DRV_GRP(189, DRV_BASE1+0xb0, 0, 2),
192 MTK_PIN_DRV_GRP(190, DRV_BASE1+0xb0, 4, 1),
193 MTK_PIN_DRV_GRP(191, DRV_BASE1+0xb0, 8, 1),
194 MTK_PIN_DRV_GRP(192, DRV_BASE1+0xb0, 12, 1),
195
196 MTK_PIN_DRV_GRP(197, DRV_BASE1+0xb0, 16, 0),
197 MTK_PIN_DRV_GRP(198, DRV_BASE1+0xb0, 16, 0),
198 MTK_PIN_DRV_GRP(199, DRV_BASE1+0xb0, 20, 0),
199 MTK_PIN_DRV_GRP(200, DRV_BASE1+0xb0, 24, 0),
200 MTK_PIN_DRV_GRP(201, DRV_BASE1+0xb0, 16, 0),
201 MTK_PIN_DRV_GRP(202, DRV_BASE1+0xb0, 16, 0)
202 };
203
204 static const struct mtk_spec_pull_set spec_pupd[] = {
205 SPEC_PULL(0, PUPD_BASE1, 0, R0_BASE1, 9, R1_BASE1, 0),
206 SPEC_PULL(1, PUPD_BASE1, 1, R0_BASE1, 8, R1_BASE1, 1),
207 SPEC_PULL(2, PUPD_BASE1, 2, R0_BASE1, 7, R1_BASE1, 2),
208 SPEC_PULL(3, PUPD_BASE1, 3, R0_BASE1, 6, R1_BASE1, 3),
209 SPEC_PULL(4, PUPD_BASE1, 4, R0_BASE1, 1, R1_BASE1, 4),
210 SPEC_PULL(5, PUPD_BASE1, 5, R0_BASE1, 0, R1_BASE1, 5),
211 SPEC_PULL(6, PUPD_BASE1, 6, R0_BASE1, 5, R1_BASE1, 6),
212 SPEC_PULL(7, PUPD_BASE1, 7, R0_BASE1, 4, R1_BASE1, 7),
213 SPEC_PULL(8, PUPD_BASE1, 8, R0_BASE1, 3, R1_BASE1, 8),
214 SPEC_PULL(9, PUPD_BASE1, 9, R0_BASE1, 2, R1_BASE1, 9),
215 SPEC_PULL(89, PUPD_BASE2, 9, R0_BASE1, 18, R1_BASE2, 9),
216 SPEC_PULL(90, PUPD_BASE2, 10, R0_BASE1, 19, R1_BASE2, 10),
217 SPEC_PULL(91, PUPD_BASE2, 11, R0_BASE1, 23, R1_BASE2, 11),
218 SPEC_PULL(92, PUPD_BASE2, 12, R0_BASE1, 24, R1_BASE2, 12),
219 SPEC_PULL(93, PUPD_BASE2, 13, R0_BASE1, 25, R1_BASE2, 13),
220 SPEC_PULL(94, PUPD_BASE2, 14, R0_BASE1, 22, R1_BASE2, 14),
221 SPEC_PULL(95, PUPD_BASE2, 15, R0_BASE1, 20, R1_BASE2, 15),
222 SPEC_PULL(96, PUPD_BASE2+0x10, 0, R0_BASE1, 16, R1_BASE2+0x10, 0),
223 SPEC_PULL(97, PUPD_BASE2+0x10, 1, R0_BASE1, 21, R1_BASE2+0x10, 1),
224 SPEC_PULL(98, PUPD_BASE2+0x10, 2, R0_BASE1, 17, R1_BASE2+0x10, 2),
225 SPEC_PULL(197, PUPD_BASE1+0xc0, 5, R0_BASE1, 13, R1_BASE2+0xc0, 5),
226 SPEC_PULL(198, PUPD_BASE2+0xc0, 6, R0_BASE1, 14, R1_BASE2+0xc0, 6),
227 SPEC_PULL(199, PUPD_BASE2+0xc0, 7, R0_BASE1, 11, R1_BASE2+0xc0, 7),
228 SPEC_PULL(200, PUPD_BASE2+0xc0, 8, R0_BASE1, 10, R1_BASE2+0xc0, 8),
229 SPEC_PULL(201, PUPD_BASE2+0xc0, 9, R0_BASE1, 13, R1_BASE2+0xc0, 9),
230 SPEC_PULL(202, PUPD_BASE2+0xc0, 10, R0_BASE1, 12, R1_BASE2+0xc0, 10)
231 };
232
spec_pull_set(struct regmap * regmap,unsigned int pin,unsigned char align,bool isup,unsigned int r1r0)233 static int spec_pull_set(struct regmap *regmap, unsigned int pin,
234 unsigned char align, 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 bool find = false;
240
241 for (i = 0; i < ARRAY_SIZE(spec_pupd); i++) {
242 if (pin == spec_pupd[i].pin) {
243 find = true;
244 break;
245 }
246 }
247
248 if (!find)
249 return -EINVAL;
250
251 if (isup)
252 reg_pupd = spec_pupd[i].pupd_offset + align;
253 else
254 reg_pupd = spec_pupd[i].pupd_offset + (align << 1);
255
256 regmap_write(regmap, reg_pupd, spec_pupd[i].pupd_bit);
257
258 reg_set_r0 = spec_pupd[i].r0_offset + align;
259 reg_rst_r0 = spec_pupd[i].r0_offset + (align << 1);
260 reg_set_r1 = spec_pupd[i].r1_offset + align;
261 reg_rst_r1 = spec_pupd[i].r1_offset + (align << 1);
262
263 switch (r1r0) {
264 case MTK_PUPD_SET_R1R0_00:
265 regmap_write(regmap, reg_rst_r0, spec_pupd[i].r0_bit);
266 regmap_write(regmap, reg_rst_r1, spec_pupd[i].r1_bit);
267 break;
268 case MTK_PUPD_SET_R1R0_01:
269 regmap_write(regmap, reg_set_r0, spec_pupd[i].r0_bit);
270 regmap_write(regmap, reg_rst_r1, spec_pupd[i].r1_bit);
271 break;
272 case MTK_PUPD_SET_R1R0_10:
273 regmap_write(regmap, reg_rst_r0, spec_pupd[i].r0_bit);
274 regmap_write(regmap, reg_set_r1, spec_pupd[i].r1_bit);
275 break;
276 case MTK_PUPD_SET_R1R0_11:
277 regmap_write(regmap, reg_set_r0, spec_pupd[i].r0_bit);
278 regmap_write(regmap, reg_set_r1, spec_pupd[i].r1_bit);
279 break;
280 default:
281 return -EINVAL;
282 }
283
284 return 0;
285 }
286
287 static const struct mtk_pinctrl_devdata mt8135_pinctrl_data = {
288 .pins = mtk_pins_mt8135,
289 .npins = ARRAY_SIZE(mtk_pins_mt8135),
290 .grp_desc = mt8135_drv_grp,
291 .n_grp_cls = ARRAY_SIZE(mt8135_drv_grp),
292 .pin_drv_grp = mt8135_pin_drv,
293 .n_pin_drv_grps = ARRAY_SIZE(mt8135_pin_drv),
294 .spec_pull_set = spec_pull_set,
295 .dir_offset = 0x0000,
296 .ies_offset = 0x0100,
297 .pullen_offset = 0x0200,
298 .smt_offset = 0x0300,
299 .pullsel_offset = 0x0400,
300 .dout_offset = 0x0800,
301 .din_offset = 0x0A00,
302 .pinmux_offset = 0x0C00,
303 .type1_start = 34,
304 .type1_end = 149,
305 .port_shf = 4,
306 .port_mask = 0xf,
307 .port_align = 4,
308 .eint_hw = {
309 .port_mask = 7,
310 .ports = 6,
311 .ap_num = 192,
312 .db_cnt = 16,
313 },
314 };
315
mt8135_pinctrl_probe(struct platform_device * pdev)316 static int mt8135_pinctrl_probe(struct platform_device *pdev)
317 {
318 return mtk_pctrl_init(pdev, &mt8135_pinctrl_data, NULL);
319 }
320
321 static const struct of_device_id mt8135_pctrl_match[] = {
322 {
323 .compatible = "mediatek,mt8135-pinctrl",
324 },
325 { }
326 };
327
328 static struct platform_driver mtk_pinctrl_driver = {
329 .probe = mt8135_pinctrl_probe,
330 .driver = {
331 .name = "mediatek-mt8135-pinctrl",
332 .of_match_table = mt8135_pctrl_match,
333 },
334 };
335
mtk_pinctrl_init(void)336 static int __init mtk_pinctrl_init(void)
337 {
338 return platform_driver_register(&mtk_pinctrl_driver);
339 }
340 arch_initcall(mtk_pinctrl_init);
341