1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
2 /*
3 * Microsemi SoCs pinctrl driver
4 *
5 * Author: <horatiu.vultur@microchip.com>
6 * Copyright (c) 2018 Microsemi Corporation
7 */
8
9 #include <common.h>
10 #include <config.h>
11 #include <dm.h>
12 #include <dm/device-internal.h>
13 #include <dm/lists.h>
14 #include <dm/pinctrl.h>
15 #include <dm/root.h>
16 #include <errno.h>
17 #include <fdtdec.h>
18 #include <linux/io.h>
19 #include <asm/gpio.h>
20 #include <asm/system.h>
21 #include "mscc-common.h"
22
23 enum {
24 FUNC_NONE,
25 FUNC_GPIO,
26 FUNC_IRQ0_IN,
27 FUNC_IRQ0_OUT,
28 FUNC_IRQ1_IN,
29 FUNC_IRQ1_OUT,
30 FUNC_MIIM1,
31 FUNC_MIIM2,
32 FUNC_PCI_WAKE,
33 FUNC_PTP0,
34 FUNC_PTP1,
35 FUNC_PTP2,
36 FUNC_PTP3,
37 FUNC_PWM,
38 FUNC_RECO_CLK0,
39 FUNC_RECO_CLK1,
40 FUNC_SFP0,
41 FUNC_SFP1,
42 FUNC_SFP2,
43 FUNC_SFP3,
44 FUNC_SFP4,
45 FUNC_SFP5,
46 FUNC_SFP6,
47 FUNC_SFP7,
48 FUNC_SFP8,
49 FUNC_SFP9,
50 FUNC_SFP10,
51 FUNC_SFP11,
52 FUNC_SFP12,
53 FUNC_SFP13,
54 FUNC_SFP14,
55 FUNC_SFP15,
56 FUNC_SG0,
57 FUNC_SG1,
58 FUNC_SG2,
59 FUNC_SI,
60 FUNC_TACHO,
61 FUNC_TWI,
62 FUNC_TWI2,
63 FUNC_TWI_SCL_M,
64 FUNC_UART,
65 FUNC_UART2,
66 FUNC_MAX
67 };
68
69 static char * const jr2_function_names[] = {
70 [FUNC_NONE] = "none",
71 [FUNC_GPIO] = "gpio",
72 [FUNC_IRQ0_IN] = "irq0_in",
73 [FUNC_IRQ0_OUT] = "irq0_out",
74 [FUNC_IRQ1_IN] = "irq1_in",
75 [FUNC_IRQ1_OUT] = "irq1_out",
76 [FUNC_MIIM1] = "miim1",
77 [FUNC_MIIM2] = "miim2",
78 [FUNC_PCI_WAKE] = "pci_wake",
79 [FUNC_PTP0] = "ptp0",
80 [FUNC_PTP1] = "ptp1",
81 [FUNC_PTP2] = "ptp2",
82 [FUNC_PTP3] = "ptp3",
83 [FUNC_PWM] = "pwm",
84 [FUNC_RECO_CLK0] = "reco_clk0",
85 [FUNC_RECO_CLK1] = "reco_clk1",
86 [FUNC_SFP0] = "sfp0",
87 [FUNC_SFP1] = "sfp1",
88 [FUNC_SFP2] = "sfp2",
89 [FUNC_SFP3] = "sfp3",
90 [FUNC_SFP4] = "sfp4",
91 [FUNC_SFP5] = "sfp5",
92 [FUNC_SFP6] = "sfp6",
93 [FUNC_SFP7] = "sfp7",
94 [FUNC_SFP8] = "sfp8",
95 [FUNC_SFP9] = "sfp9",
96 [FUNC_SFP10] = "sfp10",
97 [FUNC_SFP11] = "sfp11",
98 [FUNC_SFP12] = "sfp12",
99 [FUNC_SFP13] = "sfp13",
100 [FUNC_SFP14] = "sfp14",
101 [FUNC_SFP15] = "sfp15",
102 [FUNC_SG0] = "sg0",
103 [FUNC_SG1] = "sg1",
104 [FUNC_SG2] = "sg2",
105 [FUNC_SI] = "si",
106 [FUNC_TACHO] = "tacho",
107 [FUNC_TWI] = "twi",
108 [FUNC_TWI2] = "twi2",
109 [FUNC_TWI_SCL_M] = "twi_scl_m",
110 [FUNC_UART] = "uart",
111 [FUNC_UART2] = "uart2",
112 };
113
114 #define JR2_P(p, f0, f1) \
115 static struct mscc_pin_caps jr2_pin_##p = { \
116 .pin = p, \
117 .functions = { \
118 FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_NONE \
119 }, \
120 }
121
122 JR2_P(0, SG0, NONE);
123 JR2_P(1, SG0, NONE);
124 JR2_P(2, SG0, NONE);
125 JR2_P(3, SG0, NONE);
126 JR2_P(4, SG1, NONE);
127 JR2_P(5, SG1, NONE);
128 JR2_P(6, IRQ0_IN, IRQ0_OUT);
129 JR2_P(7, IRQ1_IN, IRQ1_OUT);
130 JR2_P(8, PTP0, NONE);
131 JR2_P(9, PTP1, NONE);
132 JR2_P(10, UART, NONE);
133 JR2_P(11, UART, NONE);
134 JR2_P(12, SG1, NONE);
135 JR2_P(13, SG1, NONE);
136 JR2_P(14, TWI, TWI_SCL_M);
137 JR2_P(15, TWI, NONE);
138 JR2_P(16, SI, TWI_SCL_M);
139 JR2_P(17, SI, TWI_SCL_M);
140 JR2_P(18, SI, TWI_SCL_M);
141 JR2_P(19, PCI_WAKE, NONE);
142 JR2_P(20, IRQ0_OUT, TWI_SCL_M);
143 JR2_P(21, IRQ1_OUT, TWI_SCL_M);
144 JR2_P(22, TACHO, NONE);
145 JR2_P(23, PWM, NONE);
146 JR2_P(24, UART2, NONE);
147 JR2_P(25, UART2, SI);
148 JR2_P(26, PTP2, SI);
149 JR2_P(27, PTP3, SI);
150 JR2_P(28, TWI2, SI);
151 JR2_P(29, TWI, SI);
152 JR2_P(30, SG2, SI);
153 JR2_P(31, SG2, SI);
154 JR2_P(32, SG2, SI);
155 JR2_P(33, SG2, SI);
156 JR2_P(34, NONE, TWI_SCL_M);
157 JR2_P(35, NONE, TWI_SCL_M);
158 JR2_P(36, NONE, TWI_SCL_M);
159 JR2_P(37, NONE, TWI_SCL_M);
160 JR2_P(38, NONE, TWI_SCL_M);
161 JR2_P(39, NONE, TWI_SCL_M);
162 JR2_P(40, NONE, TWI_SCL_M);
163 JR2_P(41, NONE, TWI_SCL_M);
164 JR2_P(42, NONE, TWI_SCL_M);
165 JR2_P(43, NONE, TWI_SCL_M);
166 JR2_P(44, NONE, SFP8);
167 JR2_P(45, NONE, SFP9);
168 JR2_P(46, NONE, SFP10);
169 JR2_P(47, NONE, SFP11);
170 JR2_P(48, SFP0, NONE);
171 JR2_P(49, SFP1, SI);
172 JR2_P(50, SFP2, SI);
173 JR2_P(51, SFP3, SI);
174 JR2_P(52, SFP4, NONE);
175 JR2_P(53, SFP5, NONE);
176 JR2_P(54, SFP6, NONE);
177 JR2_P(55, SFP7, NONE);
178 JR2_P(56, MIIM1, SFP12);
179 JR2_P(57, MIIM1, SFP13);
180 JR2_P(58, MIIM2, SFP14);
181 JR2_P(59, MIIM2, SFP15);
182 JR2_P(60, NONE, NONE);
183 JR2_P(61, NONE, NONE);
184 JR2_P(62, NONE, NONE);
185 JR2_P(63, NONE, NONE);
186
187 #define JR2_PIN(n) { \
188 .name = "GPIO_"#n, \
189 .drv_data = &jr2_pin_##n \
190 }
191
192 static const struct mscc_pin_data jr2_pins[] = {
193 JR2_PIN(0),
194 JR2_PIN(1),
195 JR2_PIN(2),
196 JR2_PIN(3),
197 JR2_PIN(4),
198 JR2_PIN(5),
199 JR2_PIN(6),
200 JR2_PIN(7),
201 JR2_PIN(8),
202 JR2_PIN(9),
203 JR2_PIN(10),
204 JR2_PIN(11),
205 JR2_PIN(12),
206 JR2_PIN(13),
207 JR2_PIN(14),
208 JR2_PIN(15),
209 JR2_PIN(16),
210 JR2_PIN(17),
211 JR2_PIN(18),
212 JR2_PIN(19),
213 JR2_PIN(20),
214 JR2_PIN(21),
215 JR2_PIN(22),
216 JR2_PIN(23),
217 JR2_PIN(24),
218 JR2_PIN(25),
219 JR2_PIN(26),
220 JR2_PIN(27),
221 JR2_PIN(28),
222 JR2_PIN(29),
223 JR2_PIN(30),
224 JR2_PIN(31),
225 JR2_PIN(32),
226 JR2_PIN(33),
227 JR2_PIN(34),
228 JR2_PIN(35),
229 JR2_PIN(36),
230 JR2_PIN(37),
231 JR2_PIN(38),
232 JR2_PIN(39),
233 JR2_PIN(40),
234 JR2_PIN(41),
235 JR2_PIN(42),
236 JR2_PIN(43),
237 JR2_PIN(44),
238 JR2_PIN(45),
239 JR2_PIN(46),
240 JR2_PIN(47),
241 JR2_PIN(48),
242 JR2_PIN(49),
243 JR2_PIN(50),
244 JR2_PIN(51),
245 JR2_PIN(52),
246 JR2_PIN(53),
247 JR2_PIN(54),
248 JR2_PIN(55),
249 JR2_PIN(56),
250 JR2_PIN(57),
251 JR2_PIN(58),
252 JR2_PIN(59),
253 JR2_PIN(60),
254 JR2_PIN(61),
255 JR2_PIN(62),
256 JR2_PIN(63),
257 };
258
259 static const unsigned long jr2_gpios[] = {
260 [MSCC_GPIO_OUT_SET] = 0x00,
261 [MSCC_GPIO_OUT_CLR] = 0x08,
262 [MSCC_GPIO_OUT] = 0x10,
263 [MSCC_GPIO_IN] = 0x18,
264 [MSCC_GPIO_OE] = 0x20,
265 [MSCC_GPIO_INTR] = 0x28,
266 [MSCC_GPIO_INTR_ENA] = 0x30,
267 [MSCC_GPIO_INTR_IDENT] = 0x38,
268 [MSCC_GPIO_ALT0] = 0x40,
269 [MSCC_GPIO_ALT1] = 0x48,
270 };
271
jr2_gpio_probe(struct udevice * dev)272 static int jr2_gpio_probe(struct udevice *dev)
273 {
274 struct gpio_dev_priv *uc_priv;
275
276 uc_priv = dev_get_uclass_priv(dev);
277 uc_priv->bank_name = "jr2-gpio";
278 uc_priv->gpio_count = ARRAY_SIZE(jr2_pins);
279
280 return 0;
281 }
282
283 static struct driver jr2_gpio_driver = {
284 .name = "jr2-gpio",
285 .id = UCLASS_GPIO,
286 .probe = jr2_gpio_probe,
287 .ops = &mscc_gpio_ops,
288 };
289
jr2_pinctrl_probe(struct udevice * dev)290 static int jr2_pinctrl_probe(struct udevice *dev)
291 {
292 int ret;
293
294 ret = mscc_pinctrl_probe(dev, FUNC_MAX, jr2_pins,
295 ARRAY_SIZE(jr2_pins),
296 jr2_function_names,
297 jr2_gpios);
298
299 if (ret)
300 return ret;
301
302 ret = device_bind(dev, &jr2_gpio_driver, "jr2-gpio", NULL,
303 dev_of_offset(dev), NULL);
304
305 if (ret)
306 return ret;
307
308 return 0;
309 }
310
311 static const struct udevice_id jr2_pinctrl_of_match[] = {
312 { .compatible = "mscc,jaguar2-pinctrl" },
313 {},
314 };
315
316 U_BOOT_DRIVER(jr2_pinctrl) = {
317 .name = "jr2-pinctrl",
318 .id = UCLASS_PINCTRL,
319 .of_match = of_match_ptr(jr2_pinctrl_of_match),
320 .probe = jr2_pinctrl_probe,
321 .priv_auto_alloc_size = sizeof(struct mscc_pinctrl),
322 .ops = &mscc_pinctrl_ops,
323 };
324