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1 | // SPDX-License-Identifier: (GPL-2.0 OR MIT) |
2 | /* | |
3 | * Microsemi SoCs pinctrl driver | |
4 | * | |
5 | * Author: <[email protected]> | |
6 | * Copyright (c) 2019 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_RCVRD_CLK0, | |
39 | FUNC_RCVRD_CLK1, | |
40 | FUNC_RCVRD_CLK2, | |
41 | FUNC_RCVRD_CLK3, | |
42 | FUNC_REF_CLK0, | |
43 | FUNC_REF_CLK1, | |
44 | FUNC_REF_CLK2, | |
45 | FUNC_REF_CLK3, | |
46 | FUNC_SFP0, | |
47 | FUNC_SFP1, | |
48 | FUNC_SFP2, | |
49 | FUNC_SFP3, | |
50 | FUNC_SFP4, | |
51 | FUNC_SFP5, | |
52 | FUNC_SFP6, | |
53 | FUNC_SFP7, | |
54 | FUNC_SFP8, | |
55 | FUNC_SFP9, | |
56 | FUNC_SFP10, | |
57 | FUNC_SFP11, | |
58 | FUNC_SFP12, | |
59 | FUNC_SFP13, | |
60 | FUNC_SFP14, | |
61 | FUNC_SFP15, | |
62 | FUNC_SIO, | |
63 | FUNC_SPI, | |
64 | FUNC_TACHO, | |
65 | FUNC_TWI, | |
66 | FUNC_TWI2, | |
67 | FUNC_TWI_SCL_M, | |
68 | FUNC_UART, | |
69 | FUNC_UART2, | |
70 | FUNC_MAX | |
71 | }; | |
72 | ||
73 | static char * const servalt_function_names[] = { | |
74 | [FUNC_NONE] = "none", | |
75 | [FUNC_GPIO] = "gpio", | |
76 | [FUNC_IRQ0_IN] = "irq0_in", | |
77 | [FUNC_IRQ0_OUT] = "irq0_out", | |
78 | [FUNC_IRQ1_IN] = "irq1_in", | |
79 | [FUNC_IRQ1_OUT] = "irq1_out", | |
80 | [FUNC_MIIM1] = "miim1", | |
81 | [FUNC_MIIM2] = "miim2", | |
82 | [FUNC_PCI_WAKE] = "pci_wake", | |
83 | [FUNC_PTP0] = "ptp0", | |
84 | [FUNC_PTP1] = "ptp1", | |
85 | [FUNC_PTP2] = "ptp2", | |
86 | [FUNC_PTP3] = "ptp3", | |
87 | [FUNC_PWM] = "pwm", | |
88 | [FUNC_RCVRD_CLK0] = "rcvrd_clk0", | |
89 | [FUNC_RCVRD_CLK1] = "rcvrd_clk1", | |
90 | [FUNC_RCVRD_CLK2] = "rcvrd_clk2", | |
91 | [FUNC_RCVRD_CLK3] = "rcvrd_clk3", | |
92 | [FUNC_REF_CLK0] = "ref_clk0", | |
93 | [FUNC_REF_CLK1] = "ref_clk1", | |
94 | [FUNC_REF_CLK2] = "ref_clk2", | |
95 | [FUNC_REF_CLK3] = "ref_clk3", | |
96 | [FUNC_SFP0] = "sfp0", | |
97 | [FUNC_SFP1] = "sfp1", | |
98 | [FUNC_SFP2] = "sfp2", | |
99 | [FUNC_SFP3] = "sfp3", | |
100 | [FUNC_SFP4] = "sfp4", | |
101 | [FUNC_SFP5] = "sfp5", | |
102 | [FUNC_SFP6] = "sfp6", | |
103 | [FUNC_SFP7] = "sfp7", | |
104 | [FUNC_SFP8] = "sfp8", | |
105 | [FUNC_SFP9] = "sfp9", | |
106 | [FUNC_SFP10] = "sfp10", | |
107 | [FUNC_SFP11] = "sfp11", | |
108 | [FUNC_SFP12] = "sfp12", | |
109 | [FUNC_SFP13] = "sfp13", | |
110 | [FUNC_SFP14] = "sfp14", | |
111 | [FUNC_SFP15] = "sfp15", | |
112 | [FUNC_SIO] = "sio", | |
113 | [FUNC_SPI] = "spi", | |
114 | [FUNC_TACHO] = "tacho", | |
115 | [FUNC_TWI] = "twi", | |
116 | [FUNC_TWI2] = "twi2", | |
117 | [FUNC_TWI_SCL_M] = "twi_scl_m", | |
118 | [FUNC_UART] = "uart", | |
119 | [FUNC_UART2] = "uart2", | |
120 | }; | |
121 | ||
122 | MSCC_P(0, SIO, NONE, NONE); | |
123 | MSCC_P(1, SIO, NONE, NONE); | |
124 | MSCC_P(2, SIO, NONE, NONE); | |
125 | MSCC_P(3, SIO, NONE, NONE); | |
126 | MSCC_P(4, IRQ0_IN, IRQ0_OUT, TWI_SCL_M); | |
127 | MSCC_P(5, IRQ1_IN, IRQ1_OUT, TWI_SCL_M); | |
128 | MSCC_P(6, UART, NONE, NONE); | |
129 | MSCC_P(7, UART, NONE, NONE); | |
130 | MSCC_P(8, SPI, SFP0, TWI_SCL_M); | |
131 | MSCC_P(9, PCI_WAKE, SFP1, SPI); | |
132 | MSCC_P(10, PTP0, SFP2, TWI_SCL_M); | |
133 | MSCC_P(11, PTP1, SFP3, TWI_SCL_M); | |
134 | MSCC_P(12, REF_CLK0, SFP4, TWI_SCL_M); | |
135 | MSCC_P(13, REF_CLK1, SFP5, TWI_SCL_M); | |
136 | MSCC_P(14, REF_CLK2, IRQ0_OUT, SPI); | |
137 | MSCC_P(15, REF_CLK3, IRQ1_OUT, SPI); | |
138 | MSCC_P(16, TACHO, SFP6, SPI); | |
139 | MSCC_P(17, PWM, NONE, TWI_SCL_M); | |
140 | MSCC_P(18, PTP2, SFP7, SPI); | |
141 | MSCC_P(19, PTP3, SFP8, SPI); | |
142 | MSCC_P(20, UART2, SFP9, SPI); | |
143 | MSCC_P(21, UART2, NONE, NONE); | |
144 | MSCC_P(22, MIIM1, SFP10, TWI2); | |
145 | MSCC_P(23, MIIM1, SFP11, TWI2); | |
146 | MSCC_P(24, TWI, NONE, NONE); | |
147 | MSCC_P(25, TWI, SFP12, TWI_SCL_M); | |
148 | MSCC_P(26, TWI_SCL_M, SFP13, SPI); | |
149 | MSCC_P(27, TWI_SCL_M, SFP14, SPI); | |
150 | MSCC_P(28, TWI_SCL_M, SFP15, SPI); | |
151 | MSCC_P(29, TWI_SCL_M, NONE, NONE); | |
152 | MSCC_P(30, TWI_SCL_M, NONE, NONE); | |
153 | MSCC_P(31, TWI_SCL_M, NONE, NONE); | |
154 | MSCC_P(32, TWI_SCL_M, NONE, NONE); | |
155 | MSCC_P(33, RCVRD_CLK0, NONE, NONE); | |
156 | MSCC_P(34, RCVRD_CLK1, NONE, NONE); | |
157 | MSCC_P(35, RCVRD_CLK2, NONE, NONE); | |
158 | MSCC_P(36, RCVRD_CLK3, NONE, NONE); | |
159 | ||
160 | #define SERVALT_PIN(n) { \ | |
161 | .name = "GPIO_"#n, \ | |
162 | .drv_data = &mscc_pin_##n \ | |
163 | } | |
164 | ||
165 | static const struct mscc_pin_data servalt_pins[] = { | |
166 | SERVALT_PIN(0), | |
167 | SERVALT_PIN(1), | |
168 | SERVALT_PIN(2), | |
169 | SERVALT_PIN(3), | |
170 | SERVALT_PIN(4), | |
171 | SERVALT_PIN(5), | |
172 | SERVALT_PIN(6), | |
173 | SERVALT_PIN(7), | |
174 | SERVALT_PIN(8), | |
175 | SERVALT_PIN(9), | |
176 | SERVALT_PIN(10), | |
177 | SERVALT_PIN(11), | |
178 | SERVALT_PIN(12), | |
179 | SERVALT_PIN(13), | |
180 | SERVALT_PIN(14), | |
181 | SERVALT_PIN(15), | |
182 | SERVALT_PIN(16), | |
183 | SERVALT_PIN(17), | |
184 | SERVALT_PIN(18), | |
185 | SERVALT_PIN(19), | |
186 | SERVALT_PIN(20), | |
187 | SERVALT_PIN(21), | |
188 | SERVALT_PIN(22), | |
189 | SERVALT_PIN(23), | |
190 | SERVALT_PIN(24), | |
191 | SERVALT_PIN(25), | |
192 | SERVALT_PIN(26), | |
193 | SERVALT_PIN(27), | |
194 | SERVALT_PIN(28), | |
195 | SERVALT_PIN(29), | |
196 | SERVALT_PIN(30), | |
197 | SERVALT_PIN(31), | |
198 | SERVALT_PIN(32), | |
199 | SERVALT_PIN(33), | |
200 | SERVALT_PIN(34), | |
201 | SERVALT_PIN(35), | |
202 | SERVALT_PIN(36), | |
203 | }; | |
204 | ||
205 | static const unsigned long servalt_gpios[] = { | |
206 | [MSCC_GPIO_OUT_SET] = 0x00, | |
207 | [MSCC_GPIO_OUT_CLR] = 0x08, | |
208 | [MSCC_GPIO_OUT] = 0x10, | |
209 | [MSCC_GPIO_IN] = 0x18, | |
210 | [MSCC_GPIO_OE] = 0x20, | |
211 | [MSCC_GPIO_INTR] = 0x28, | |
212 | [MSCC_GPIO_INTR_ENA] = 0x30, | |
213 | [MSCC_GPIO_INTR_IDENT] = 0x38, | |
214 | [MSCC_GPIO_ALT0] = 0x40, | |
215 | [MSCC_GPIO_ALT1] = 0x48, | |
216 | }; | |
217 | ||
218 | static int servalt_gpio_probe(struct udevice *dev) | |
219 | { | |
220 | struct gpio_dev_priv *uc_priv; | |
221 | ||
222 | uc_priv = dev_get_uclass_priv(dev); | |
223 | uc_priv->bank_name = "servalt-gpio"; | |
224 | uc_priv->gpio_count = ARRAY_SIZE(servalt_pins); | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
229 | static struct driver servalt_gpio_driver = { | |
230 | .name = "servalt-gpio", | |
231 | .id = UCLASS_GPIO, | |
232 | .probe = servalt_gpio_probe, | |
233 | .ops = &mscc_gpio_ops, | |
234 | }; | |
235 | ||
236 | static int servalt_pinctrl_probe(struct udevice *dev) | |
237 | { | |
238 | int ret; | |
239 | ||
240 | ret = mscc_pinctrl_probe(dev, FUNC_MAX, servalt_pins, | |
241 | ARRAY_SIZE(servalt_pins), | |
242 | servalt_function_names, | |
243 | servalt_gpios); | |
244 | ||
245 | if (ret) | |
246 | return ret; | |
247 | ||
a2703ce1 SG |
248 | ret = device_bind(dev, &servalt_gpio_driver, "servalt-gpio", NULL, |
249 | dev_ofnode(dev), NULL); | |
177c07f8 HV |
250 | |
251 | if (ret) | |
252 | return ret; | |
253 | ||
254 | return 0; | |
255 | } | |
256 | ||
257 | static const struct udevice_id servalt_pinctrl_of_match[] = { | |
258 | { .compatible = "mscc,servalt-pinctrl" }, | |
259 | {}, | |
260 | }; | |
261 | ||
262 | U_BOOT_DRIVER(servalt_pinctrl) = { | |
263 | .name = "servalt-pinctrl", | |
264 | .id = UCLASS_PINCTRL, | |
265 | .of_match = of_match_ptr(servalt_pinctrl_of_match), | |
266 | .probe = servalt_pinctrl_probe, | |
41575d8e | 267 | .priv_auto = sizeof(struct mscc_pinctrl), |
177c07f8 HV |
268 | .ops = &mscc_pinctrl_ops, |
269 | }; |