xref: /linux/arch/arm/mach-omap1/board-nokia770.c (revision 44f57d78) 
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * linux/arch/arm/mach-omap1/board-nokia770.c
4  *
5  * Modified from board-generic.c
6  */
7 #include <linux/clkdev.h>
8 #include <linux/irq.h>
9 #include <linux/gpio.h>
10 #include <linux/gpio/machine.h>
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/mutex.h>
14 #include <linux/platform_device.h>
15 #include <linux/input.h>
16 #include <linux/omapfb.h>
17 
18 #include <linux/spi/spi.h>
19 #include <linux/spi/ads7846.h>
20 #include <linux/workqueue.h>
21 #include <linux/delay.h>
22 
23 #include <linux/platform_data/keypad-omap.h>
24 #include <linux/platform_data/lcd-mipid.h>
25 #include <linux/platform_data/gpio-omap.h>
26 
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
30 
31 #include <mach/mux.h>
32 
33 #include <mach/hardware.h>
34 #include <mach/usb.h>
35 
36 #include "common.h"
37 #include "clock.h"
38 #include "mmc.h"
39 
40 #define ADS7846_PENDOWN_GPIO	15
41 
42 static const unsigned int nokia770_keymap[] = {
43 	KEY(1, 0, GROUP_0 | KEY_UP),
44 	KEY(2, 0, GROUP_1 | KEY_F5),
45 	KEY(0, 1, GROUP_0 | KEY_LEFT),
46 	KEY(1, 1, GROUP_0 | KEY_ENTER),
47 	KEY(2, 1, GROUP_0 | KEY_RIGHT),
48 	KEY(0, 2, GROUP_1 | KEY_ESC),
49 	KEY(1, 2, GROUP_0 | KEY_DOWN),
50 	KEY(2, 2, GROUP_1 | KEY_F4),
51 	KEY(0, 3, GROUP_2 | KEY_F7),
52 	KEY(1, 3, GROUP_2 | KEY_F8),
53 	KEY(2, 3, GROUP_2 | KEY_F6),
54 };
55 
56 static struct resource nokia770_kp_resources[] = {
57 	[0] = {
58 		.start	= INT_KEYBOARD,
59 		.end	= INT_KEYBOARD,
60 		.flags	= IORESOURCE_IRQ,
61 	},
62 };
63 
64 static const struct matrix_keymap_data nokia770_keymap_data = {
65 	.keymap		= nokia770_keymap,
66 	.keymap_size	= ARRAY_SIZE(nokia770_keymap),
67 };
68 
69 static struct omap_kp_platform_data nokia770_kp_data = {
70 	.rows		= 8,
71 	.cols		= 8,
72 	.keymap_data	= &nokia770_keymap_data,
73 	.delay		= 4,
74 };
75 
76 static struct platform_device nokia770_kp_device = {
77 	.name		= "omap-keypad",
78 	.id		= -1,
79 	.dev		= {
80 		.platform_data = &nokia770_kp_data,
81 	},
82 	.num_resources	= ARRAY_SIZE(nokia770_kp_resources),
83 	.resource	= nokia770_kp_resources,
84 };
85 
86 static struct platform_device *nokia770_devices[] __initdata = {
87 	&nokia770_kp_device,
88 };
89 
90 static void mipid_shutdown(struct mipid_platform_data *pdata)
91 {
92 	if (pdata->nreset_gpio != -1) {
93 		printk(KERN_INFO "shutdown LCD\n");
94 		gpio_set_value(pdata->nreset_gpio, 0);
95 		msleep(120);
96 	}
97 }
98 
99 static struct mipid_platform_data nokia770_mipid_platform_data = {
100 	.shutdown = mipid_shutdown,
101 };
102 
103 static const struct omap_lcd_config nokia770_lcd_config __initconst = {
104 	.ctrl_name	= "hwa742",
105 };
106 
107 static void __init mipid_dev_init(void)
108 {
109 	nokia770_mipid_platform_data.nreset_gpio = 13;
110 	nokia770_mipid_platform_data.data_lines = 16;
111 
112 	omapfb_set_lcd_config(&nokia770_lcd_config);
113 }
114 
115 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
116 	.x_max		= 0x0fff,
117 	.y_max		= 0x0fff,
118 	.x_plate_ohms	= 180,
119 	.pressure_max	= 255,
120 	.debounce_max	= 10,
121 	.debounce_tol	= 3,
122 	.debounce_rep	= 1,
123 	.gpio_pendown	= ADS7846_PENDOWN_GPIO,
124 };
125 
126 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
127 	[0] = {
128 		.modalias       = "lcd_mipid",
129 		.bus_num        = 2,
130 		.chip_select    = 3,
131 		.max_speed_hz   = 12000000,
132 		.platform_data	= &nokia770_mipid_platform_data,
133 	},
134 	[1] = {
135 		.modalias       = "ads7846",
136 		.bus_num        = 2,
137 		.chip_select    = 0,
138 		.max_speed_hz   = 2500000,
139 		.platform_data	= &nokia770_ads7846_platform_data,
140 	},
141 };
142 
143 static void __init hwa742_dev_init(void)
144 {
145 	clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
146 }
147 
148 /* assume no Mini-AB port */
149 
150 static struct omap_usb_config nokia770_usb_config __initdata = {
151 	.otg		= 1,
152 	.register_host	= 1,
153 	.register_dev	= 1,
154 	.hmc_mode	= 16,
155 	.pins[0]	= 6,
156 	.extcon		= "tahvo-usb",
157 };
158 
159 #if IS_ENABLED(CONFIG_MMC_OMAP)
160 
161 #define NOKIA770_GPIO_MMC_POWER		41
162 #define NOKIA770_GPIO_MMC_SWITCH	23
163 
164 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
165 				int vdd)
166 {
167 	gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
168 	return 0;
169 }
170 
171 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
172 {
173 	return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
174 }
175 
176 static struct omap_mmc_platform_data nokia770_mmc2_data = {
177 	.nr_slots                       = 1,
178 	.max_freq                       = 12000000,
179 	.slots[0]       = {
180 		.set_power		= nokia770_mmc_set_power,
181 		.get_cover_state	= nokia770_mmc_get_cover_state,
182 		.ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
183 		.name                   = "mmcblk",
184 	},
185 };
186 
187 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
188 
189 static void __init nokia770_mmc_init(void)
190 {
191 	int ret;
192 
193 	ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
194 	if (ret < 0)
195 		return;
196 	gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
197 
198 	ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
199 	if (ret < 0) {
200 		gpio_free(NOKIA770_GPIO_MMC_POWER);
201 		return;
202 	}
203 	gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
204 
205 	/* Only the second MMC controller is used */
206 	nokia770_mmc_data[1] = &nokia770_mmc2_data;
207 	omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
208 }
209 
210 #else
211 static inline void nokia770_mmc_init(void)
212 {
213 }
214 #endif
215 
216 #if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
217 static struct gpiod_lookup_table nokia770_cbus_gpio_table = {
218 	.dev_id = "i2c-cbus-gpio.2",
219 	.table = {
220 		GPIO_LOOKUP_IDX("mpuio", 9, NULL, 0, 0), /* clk */
221 		GPIO_LOOKUP_IDX("mpuio", 10, NULL, 1, 0), /* dat */
222 		GPIO_LOOKUP_IDX("mpuio", 11, NULL, 2, 0), /* sel */
223 		{ },
224 	},
225 };
226 
227 static struct platform_device nokia770_cbus_device = {
228 	.name   = "i2c-cbus-gpio",
229 	.id     = 2,
230 };
231 
232 static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
233 	{
234 		I2C_BOARD_INFO("retu", 0x01),
235 	},
236 	{
237 		I2C_BOARD_INFO("tahvo", 0x02),
238 	},
239 };
240 
241 static void __init nokia770_cbus_init(void)
242 {
243 	const int retu_irq_gpio = 62;
244 	const int tahvo_irq_gpio = 40;
245 
246 	if (gpio_request_one(retu_irq_gpio, GPIOF_IN, "Retu IRQ"))
247 		return;
248 	if (gpio_request_one(tahvo_irq_gpio, GPIOF_IN, "Tahvo IRQ")) {
249 		gpio_free(retu_irq_gpio);
250 		return;
251 	}
252 	irq_set_irq_type(gpio_to_irq(retu_irq_gpio), IRQ_TYPE_EDGE_RISING);
253 	irq_set_irq_type(gpio_to_irq(tahvo_irq_gpio), IRQ_TYPE_EDGE_RISING);
254 	nokia770_i2c_board_info_2[0].irq = gpio_to_irq(retu_irq_gpio);
255 	nokia770_i2c_board_info_2[1].irq = gpio_to_irq(tahvo_irq_gpio);
256 	i2c_register_board_info(2, nokia770_i2c_board_info_2,
257 				ARRAY_SIZE(nokia770_i2c_board_info_2));
258 	gpiod_add_lookup_table(&nokia770_cbus_gpio_table);
259 	platform_device_register(&nokia770_cbus_device);
260 }
261 #else /* CONFIG_I2C_CBUS_GPIO */
262 static void __init nokia770_cbus_init(void)
263 {
264 }
265 #endif /* CONFIG_I2C_CBUS_GPIO */
266 
267 static void __init omap_nokia770_init(void)
268 {
269 	/* On Nokia 770, the SleepX signal is masked with an
270 	 * MPUIO line by default.  It has to be unmasked for it
271 	 * to become functional */
272 
273 	/* SleepX mask direction */
274 	omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
275 	/* Unmask SleepX signal */
276 	omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
277 
278 	platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
279 	nokia770_spi_board_info[1].irq = gpio_to_irq(15);
280 	spi_register_board_info(nokia770_spi_board_info,
281 				ARRAY_SIZE(nokia770_spi_board_info));
282 	omap_serial_init();
283 	omap_register_i2c_bus(1, 100, NULL, 0);
284 	hwa742_dev_init();
285 	mipid_dev_init();
286 	omap1_usb_init(&nokia770_usb_config);
287 	nokia770_mmc_init();
288 	nokia770_cbus_init();
289 }
290 
291 MACHINE_START(NOKIA770, "Nokia 770")
292 	.atag_offset	= 0x100,
293 	.map_io		= omap16xx_map_io,
294 	.init_early     = omap1_init_early,
295 	.init_irq	= omap1_init_irq,
296 	.handle_irq	= omap1_handle_irq,
297 	.init_machine	= omap_nokia770_init,
298 	.init_late	= omap1_init_late,
299 	.init_time	= omap1_timer_init,
300 	.restart	= omap1_restart,
301 MACHINE_END
302