1
2
3
4
5
6
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
23enum {
24 FUNC_NONE,
25 FUNC_GPIO,
26 FUNC_IRQ0,
27 FUNC_IRQ1,
28 FUNC_MIIM1,
29 FUNC_PCI_WAKE,
30 FUNC_PTP0,
31 FUNC_PTP1,
32 FUNC_PTP2,
33 FUNC_PTP3,
34 FUNC_PWM,
35 FUNC_RECO_CLK0,
36 FUNC_RECO_CLK1,
37 FUNC_SFP0,
38 FUNC_SFP1,
39 FUNC_SFP2,
40 FUNC_SFP3,
41 FUNC_SFP4,
42 FUNC_SFP5,
43 FUNC_SFP6,
44 FUNC_SFP7,
45 FUNC_SFP8,
46 FUNC_SFP9,
47 FUNC_SFP10,
48 FUNC_SIO,
49 FUNC_SI,
50 FUNC_TACHO,
51 FUNC_TWI,
52 FUNC_TWI_SCL_M,
53 FUNC_UART,
54 FUNC_UART2,
55 FUNC_MD,
56 FUNC_PTP1588,
57 FUNC_MAX
58};
59
60static char * const serval_function_names[] = {
61 [FUNC_NONE] = "none",
62 [FUNC_GPIO] = "gpio",
63 [FUNC_IRQ0] = "irq0",
64 [FUNC_IRQ1] = "irq1",
65 [FUNC_MIIM1] = "miim1",
66 [FUNC_PCI_WAKE] = "pci_wake",
67 [FUNC_PTP0] = "ptp0",
68 [FUNC_PTP1] = "ptp1",
69 [FUNC_PTP2] = "ptp2",
70 [FUNC_PTP3] = "ptp3",
71 [FUNC_PWM] = "pwm",
72 [FUNC_RECO_CLK0] = "reco_clk0",
73 [FUNC_RECO_CLK1] = "reco_clk1",
74 [FUNC_SFP0] = "sfp0",
75 [FUNC_SFP1] = "sfp1",
76 [FUNC_SFP2] = "sfp2",
77 [FUNC_SFP3] = "sfp3",
78 [FUNC_SFP4] = "sfp4",
79 [FUNC_SFP5] = "sfp5",
80 [FUNC_SFP6] = "sfp6",
81 [FUNC_SFP7] = "sfp7",
82 [FUNC_SFP8] = "sfp8",
83 [FUNC_SFP9] = "sfp9",
84 [FUNC_SFP10] = "sfp10",
85 [FUNC_SIO] = "sio",
86 [FUNC_SI] = "si",
87 [FUNC_TACHO] = "tacho",
88 [FUNC_TWI] = "twi",
89 [FUNC_TWI_SCL_M] = "twi_scl_m",
90 [FUNC_UART] = "uart",
91 [FUNC_UART2] = "uart2",
92 [FUNC_MD] = "md",
93 [FUNC_PTP1588] = "1588",
94};
95
96MSCC_P(0, SIO, NONE, NONE);
97MSCC_P(1, SIO, NONE, NONE);
98MSCC_P(2, SIO, NONE, NONE);
99MSCC_P(3, SIO, NONE, NONE);
100MSCC_P(4, TACHO, NONE, NONE);
101MSCC_P(5, PWM, NONE, NONE);
102MSCC_P(6, TWI, NONE, NONE);
103MSCC_P(7, TWI, NONE, NONE);
104MSCC_P(8, SI, NONE, NONE);
105MSCC_P(9, SI, MD, NONE);
106MSCC_P(10, SI, MD, NONE);
107MSCC_P(11, SFP0, MD, TWI_SCL_M);
108MSCC_P(12, SFP1, MD, TWI_SCL_M);
109MSCC_P(13, SFP2, UART2, TWI_SCL_M);
110MSCC_P(14, SFP3, UART2, TWI_SCL_M);
111MSCC_P(15, SFP4, PTP1588, TWI_SCL_M);
112MSCC_P(16, SFP5, PTP1588, TWI_SCL_M);
113MSCC_P(17, SFP6, PCI_WAKE, TWI_SCL_M);
114MSCC_P(18, SFP7, NONE, TWI_SCL_M);
115MSCC_P(19, SFP8, NONE, TWI_SCL_M);
116MSCC_P(20, SFP9, NONE, TWI_SCL_M);
117MSCC_P(21, SFP10, NONE, TWI_SCL_M);
118MSCC_P(22, NONE, NONE, NONE);
119MSCC_P(23, NONE, NONE, NONE);
120MSCC_P(24, NONE, NONE, NONE);
121MSCC_P(25, NONE, NONE, NONE);
122MSCC_P(26, UART, NONE, NONE);
123MSCC_P(27, UART, NONE, NONE);
124MSCC_P(28, IRQ0, NONE, NONE);
125MSCC_P(29, IRQ1, NONE, NONE);
126MSCC_P(30, PTP1588, NONE, NONE);
127MSCC_P(31, PTP1588, NONE, NONE);
128
129#define SERVAL_PIN(n) { \
130 .name = "GPIO_"#n, \
131 .drv_data = &mscc_pin_##n \
132}
133
134static const struct mscc_pin_data serval_pins[] = {
135 SERVAL_PIN(0),
136 SERVAL_PIN(1),
137 SERVAL_PIN(2),
138 SERVAL_PIN(3),
139 SERVAL_PIN(4),
140 SERVAL_PIN(5),
141 SERVAL_PIN(6),
142 SERVAL_PIN(7),
143 SERVAL_PIN(8),
144 SERVAL_PIN(9),
145 SERVAL_PIN(10),
146 SERVAL_PIN(11),
147 SERVAL_PIN(12),
148 SERVAL_PIN(13),
149 SERVAL_PIN(14),
150 SERVAL_PIN(15),
151 SERVAL_PIN(16),
152 SERVAL_PIN(17),
153 SERVAL_PIN(18),
154 SERVAL_PIN(19),
155 SERVAL_PIN(20),
156 SERVAL_PIN(21),
157 SERVAL_PIN(22),
158 SERVAL_PIN(23),
159 SERVAL_PIN(24),
160 SERVAL_PIN(25),
161 SERVAL_PIN(26),
162 SERVAL_PIN(27),
163 SERVAL_PIN(28),
164 SERVAL_PIN(29),
165 SERVAL_PIN(30),
166 SERVAL_PIN(31),
167};
168
169static const unsigned long serval_gpios[] = {
170 [MSCC_GPIO_OUT_SET] = 0x00,
171 [MSCC_GPIO_OUT_CLR] = 0x04,
172 [MSCC_GPIO_OUT] = 0x08,
173 [MSCC_GPIO_IN] = 0x0c,
174 [MSCC_GPIO_OE] = 0x10,
175 [MSCC_GPIO_INTR] = 0x14,
176 [MSCC_GPIO_INTR_ENA] = 0x18,
177 [MSCC_GPIO_INTR_IDENT] = 0x1c,
178 [MSCC_GPIO_ALT0] = 0x20,
179 [MSCC_GPIO_ALT1] = 0x24,
180};
181
182static int serval_gpio_probe(struct udevice *dev)
183{
184 struct gpio_dev_priv *uc_priv;
185
186 uc_priv = dev_get_uclass_priv(dev);
187 uc_priv->bank_name = "serval-gpio";
188 uc_priv->gpio_count = ARRAY_SIZE(serval_pins);
189
190 return 0;
191}
192
193static struct driver serval_gpio_driver = {
194 .name = "serval-gpio",
195 .id = UCLASS_GPIO,
196 .probe = serval_gpio_probe,
197 .ops = &mscc_gpio_ops,
198};
199
200static int serval_pinctrl_probe(struct udevice *dev)
201{
202 int ret;
203
204 ret = mscc_pinctrl_probe(dev, FUNC_MAX, serval_pins,
205 ARRAY_SIZE(serval_pins),
206 serval_function_names,
207 serval_gpios);
208
209 if (ret)
210 return ret;
211
212 ret = device_bind(dev, &serval_gpio_driver, "serval-gpio", NULL,
213 dev_ofnode(dev), NULL);
214
215 if (ret)
216 return ret;
217
218 return 0;
219}
220
221static const struct udevice_id serval_pinctrl_of_match[] = {
222 { .compatible = "mscc,serval-pinctrl" },
223 {},
224};
225
226U_BOOT_DRIVER(serval_pinctrl) = {
227 .name = "serval-pinctrl",
228 .id = UCLASS_PINCTRL,
229 .of_match = of_match_ptr(serval_pinctrl_of_match),
230 .probe = serval_pinctrl_probe,
231 .priv_auto = sizeof(struct mscc_pinctrl),
232 .ops = &mscc_pinctrl_ops,
233};
234
