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10#include <common.h>
11#include <config.h>
12#include <dm.h>
13#include <dm/device-internal.h>
14#include <dm/lists.h>
15#include <dm/pinctrl.h>
16#include <dm/root.h>
17#include <errno.h>
18#include <fdtdec.h>
19#include <linux/io.h>
20#include <asm/gpio.h>
21#include <asm/system.h>
22#include "mscc-common.h"
23
24enum {
25 FUNC_NONE,
26 FUNC_GPIO,
27 FUNC_SIO,
28 FUNC_TACHO,
29 FUNC_TWI,
30 FUNC_PHY_LED,
31 FUNC_EXT_IRQ,
32 FUNC_SFP,
33 FUNC_SI,
34 FUNC_PWM,
35 FUNC_UART,
36 FUNC_MAX
37};
38
39static char * const luton_function_names[] = {
40 [FUNC_NONE] = "none",
41 [FUNC_GPIO] = "gpio",
42 [FUNC_SIO] = "sio",
43 [FUNC_TACHO] = "tacho",
44 [FUNC_TWI] = "twi",
45 [FUNC_PHY_LED] = "phy_led",
46 [FUNC_EXT_IRQ] = "ext_irq",
47 [FUNC_SFP] = "sfp",
48 [FUNC_SI] = "si",
49 [FUNC_PWM] = "pwm",
50 [FUNC_UART] = "uart",
51};
52
53MSCC_P(0, SIO, NONE, NONE);
54MSCC_P(1, SIO, NONE, NONE);
55MSCC_P(2, SIO, NONE, NONE);
56MSCC_P(3, SIO, NONE, NONE);
57MSCC_P(4, TACHO, NONE, NONE);
58MSCC_P(5, TWI, PHY_LED, NONE);
59MSCC_P(6, TWI, PHY_LED, NONE);
60MSCC_P(7, NONE, PHY_LED, NONE);
61MSCC_P(8, EXT_IRQ, PHY_LED, NONE);
62MSCC_P(9, EXT_IRQ, PHY_LED, NONE);
63MSCC_P(10, SFP, PHY_LED, NONE);
64MSCC_P(11, SFP, PHY_LED, NONE);
65MSCC_P(12, SFP, PHY_LED, NONE);
66MSCC_P(13, SFP, PHY_LED, NONE);
67MSCC_P(14, SI, PHY_LED, NONE);
68MSCC_P(15, SI, PHY_LED, NONE);
69MSCC_P(16, SI, PHY_LED, NONE);
70MSCC_P(17, SFP, PHY_LED, NONE);
71MSCC_P(18, SFP, PHY_LED, NONE);
72MSCC_P(19, SFP, PHY_LED, NONE);
73MSCC_P(20, SFP, PHY_LED, NONE);
74MSCC_P(21, SFP, PHY_LED, NONE);
75MSCC_P(22, SFP, PHY_LED, NONE);
76MSCC_P(23, SFP, PHY_LED, NONE);
77MSCC_P(24, SFP, PHY_LED, NONE);
78MSCC_P(25, SFP, PHY_LED, NONE);
79MSCC_P(26, SFP, PHY_LED, NONE);
80MSCC_P(27, SFP, PHY_LED, NONE);
81MSCC_P(28, SFP, PHY_LED, NONE);
82MSCC_P(29, PWM, NONE, NONE);
83MSCC_P(30, UART, NONE, NONE);
84MSCC_P(31, UART, NONE, NONE);
85
86#define LUTON_PIN(n) { \
87 .name = "GPIO_"#n, \
88 .drv_data = &mscc_pin_##n \
89}
90
91static const struct mscc_pin_data luton_pins[] = {
92 LUTON_PIN(0),
93 LUTON_PIN(1),
94 LUTON_PIN(2),
95 LUTON_PIN(3),
96 LUTON_PIN(4),
97 LUTON_PIN(5),
98 LUTON_PIN(6),
99 LUTON_PIN(7),
100 LUTON_PIN(8),
101 LUTON_PIN(9),
102 LUTON_PIN(10),
103 LUTON_PIN(11),
104 LUTON_PIN(12),
105 LUTON_PIN(13),
106 LUTON_PIN(14),
107 LUTON_PIN(15),
108 LUTON_PIN(16),
109 LUTON_PIN(17),
110 LUTON_PIN(18),
111 LUTON_PIN(19),
112 LUTON_PIN(20),
113 LUTON_PIN(21),
114 LUTON_PIN(22),
115 LUTON_PIN(23),
116 LUTON_PIN(24),
117 LUTON_PIN(25),
118 LUTON_PIN(26),
119 LUTON_PIN(27),
120 LUTON_PIN(28),
121 LUTON_PIN(29),
122 LUTON_PIN(30),
123 LUTON_PIN(31),
124};
125
126static const unsigned long luton_gpios[] = {
127 [MSCC_GPIO_OUT_SET] = 0x00,
128 [MSCC_GPIO_OUT_CLR] = 0x04,
129 [MSCC_GPIO_OUT] = 0x08,
130 [MSCC_GPIO_IN] = 0x0c,
131 [MSCC_GPIO_OE] = 0x10,
132 [MSCC_GPIO_INTR] = 0x14,
133 [MSCC_GPIO_INTR_ENA] = 0x18,
134 [MSCC_GPIO_INTR_IDENT] = 0x1c,
135 [MSCC_GPIO_ALT0] = 0x20,
136 [MSCC_GPIO_ALT1] = 0x24,
137};
138
139static int luton_gpio_probe(struct udevice *dev)
140{
141 struct gpio_dev_priv *uc_priv;
142
143 uc_priv = dev_get_uclass_priv(dev);
144 uc_priv->bank_name = "luton-gpio";
145 uc_priv->gpio_count = ARRAY_SIZE(luton_pins);
146
147 return 0;
148}
149
150static struct driver luton_gpio_driver = {
151 .name = "luton-gpio",
152 .id = UCLASS_GPIO,
153 .probe = luton_gpio_probe,
154 .ops = &mscc_gpio_ops,
155};
156
157int luton_pinctrl_probe(struct udevice *dev)
158{
159 int ret;
160
161 ret = mscc_pinctrl_probe(dev, FUNC_MAX, luton_pins,
162 ARRAY_SIZE(luton_pins), luton_function_names,
163 luton_gpios);
164
165 if (ret)
166 return ret;
167
168 ret = device_bind(dev, &luton_gpio_driver, "luton-gpio", NULL,
169 dev_ofnode(dev), NULL);
170
171 return 0;
172}
173
174static const struct udevice_id luton_pinctrl_of_match[] = {
175 {.compatible = "mscc,luton-pinctrl"},
176 {},
177};
178
179U_BOOT_DRIVER(luton_pinctrl) = {
180 .name = "luton-pinctrl",
181 .id = UCLASS_PINCTRL,
182 .of_match = of_match_ptr(luton_pinctrl_of_match),
183 .probe = luton_pinctrl_probe,
184 .priv_auto = sizeof(struct mscc_pinctrl),
185 .ops = &mscc_pinctrl_ops,
186};
187
