1 /*
2  * linux/arch/arm/mach-omap1/board-nokia770.c
3  *
4  * Modified from board-generic.c
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  */
10 
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/clk.h>
17 #include <linux/omapfb.h>
18 
19 #include <linux/spi/spi.h>
20 #include <linux/spi/ads7846.h>
21 #include <linux/workqueue.h>
22 #include <linux/delay.h>
23 
24 #include <mach/hardware.h>
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27 #include <asm/mach/map.h>
28 
29 #include <mach/gpio.h>
30 #include <plat/mux.h>
31 #include <plat/usb.h>
32 #include <plat/board.h>
33 #include <plat/keypad.h>
34 #include <plat/common.h>
35 #include <plat/hwa742.h>
36 #include <plat/lcd_mipid.h>
37 #include <plat/mmc.h>
38 #include <plat/clock.h>
39 
40 #define ADS7846_PENDOWN_GPIO	15
41 
42 static void __init omap_nokia770_init_irq(void)
43 {
44 	/* On Nokia 770, the SleepX signal is masked with an
45 	 * MPUIO line by default.  It has to be unmasked for it
46 	 * to become functional */
47 
48 	/* SleepX mask direction */
49 	omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
50 	/* Unmask SleepX signal */
51 	omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
52 
53 	omap1_init_common_hw();
54 	omap_init_irq();
55 }
56 
57 static const unsigned int nokia770_keymap[] = {
58 	KEY(1, 0, GROUP_0 | KEY_UP),
59 	KEY(2, 0, GROUP_1 | KEY_F5),
60 	KEY(0, 1, GROUP_0 | KEY_LEFT),
61 	KEY(1, 1, GROUP_0 | KEY_ENTER),
62 	KEY(2, 1, GROUP_0 | KEY_RIGHT),
63 	KEY(0, 2, GROUP_1 | KEY_ESC),
64 	KEY(1, 2, GROUP_0 | KEY_DOWN),
65 	KEY(2, 2, GROUP_1 | KEY_F4),
66 	KEY(0, 3, GROUP_2 | KEY_F7),
67 	KEY(1, 3, GROUP_2 | KEY_F8),
68 	KEY(2, 3, GROUP_2 | KEY_F6),
69 };
70 
71 static struct resource nokia770_kp_resources[] = {
72 	[0] = {
73 		.start	= INT_KEYBOARD,
74 		.end	= INT_KEYBOARD,
75 		.flags	= IORESOURCE_IRQ,
76 	},
77 };
78 
79 static const struct matrix_keymap_data nokia770_keymap_data = {
80 	.keymap		= nokia770_keymap,
81 	.keymap_size	= ARRAY_SIZE(nokia770_keymap),
82 };
83 
84 static struct omap_kp_platform_data nokia770_kp_data = {
85 	.rows		= 8,
86 	.cols		= 8,
87 	.keymap_data	= &nokia770_keymap_data,
88 	.delay		= 4,
89 };
90 
91 static struct platform_device nokia770_kp_device = {
92 	.name		= "omap-keypad",
93 	.id		= -1,
94 	.dev		= {
95 		.platform_data = &nokia770_kp_data,
96 	},
97 	.num_resources	= ARRAY_SIZE(nokia770_kp_resources),
98 	.resource	= nokia770_kp_resources,
99 };
100 
101 static struct platform_device *nokia770_devices[] __initdata = {
102 	&nokia770_kp_device,
103 };
104 
105 static void mipid_shutdown(struct mipid_platform_data *pdata)
106 {
107 	if (pdata->nreset_gpio != -1) {
108 		printk(KERN_INFO "shutdown LCD\n");
109 		gpio_set_value(pdata->nreset_gpio, 0);
110 		msleep(120);
111 	}
112 }
113 
114 static struct mipid_platform_data nokia770_mipid_platform_data = {
115 	.shutdown = mipid_shutdown,
116 };
117 
118 static void mipid_dev_init(void)
119 {
120 	const struct omap_lcd_config *conf;
121 
122 	conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
123 	if (conf != NULL) {
124 		nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
125 		nokia770_mipid_platform_data.data_lines = conf->data_lines;
126 	}
127 }
128 
129 static void ads7846_dev_init(void)
130 {
131 	if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
132 		printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
133 }
134 
135 static int ads7846_get_pendown_state(void)
136 {
137 	return !gpio_get_value(ADS7846_PENDOWN_GPIO);
138 }
139 
140 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
141 	.x_max		= 0x0fff,
142 	.y_max		= 0x0fff,
143 	.x_plate_ohms	= 180,
144 	.pressure_max	= 255,
145 	.debounce_max	= 10,
146 	.debounce_tol	= 3,
147 	.debounce_rep	= 1,
148 	.get_pendown_state	= ads7846_get_pendown_state,
149 };
150 
151 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
152 	[0] = {
153 		.modalias       = "lcd_mipid",
154 		.bus_num        = 2,
155 		.chip_select    = 3,
156 		.max_speed_hz   = 12000000,
157 		.platform_data	= &nokia770_mipid_platform_data,
158 	},
159 	[1] = {
160 		.modalias       = "ads7846",
161 		.bus_num        = 2,
162 		.chip_select    = 0,
163 		.max_speed_hz   = 2500000,
164 		.irq		= OMAP_GPIO_IRQ(15),
165 		.platform_data	= &nokia770_ads7846_platform_data,
166 	},
167 };
168 
169 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
170 	.te_connected		= 1,
171 };
172 
173 static void hwa742_dev_init(void)
174 {
175 	clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
176 	omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
177 }
178 
179 /* assume no Mini-AB port */
180 
181 static struct omap_usb_config nokia770_usb_config __initdata = {
182 	.otg		= 1,
183 	.register_host	= 1,
184 	.register_dev	= 1,
185 	.hmc_mode	= 16,
186 	.pins[0]	= 6,
187 };
188 
189 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
190 
191 #define NOKIA770_GPIO_MMC_POWER		41
192 #define NOKIA770_GPIO_MMC_SWITCH	23
193 
194 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
195 				int vdd)
196 {
197 	gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
198 	return 0;
199 }
200 
201 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
202 {
203 	return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
204 }
205 
206 static struct omap_mmc_platform_data nokia770_mmc2_data = {
207 	.nr_slots                       = 1,
208 	.dma_mask			= 0xffffffff,
209 	.max_freq                       = 12000000,
210 	.slots[0]       = {
211 		.set_power		= nokia770_mmc_set_power,
212 		.get_cover_state	= nokia770_mmc_get_cover_state,
213 		.ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
214 		.name                   = "mmcblk",
215 	},
216 };
217 
218 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
219 
220 static void __init nokia770_mmc_init(void)
221 {
222 	int ret;
223 
224 	ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
225 	if (ret < 0)
226 		return;
227 	gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
228 
229 	ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
230 	if (ret < 0) {
231 		gpio_free(NOKIA770_GPIO_MMC_POWER);
232 		return;
233 	}
234 	gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
235 
236 	/* Only the second MMC controller is used */
237 	nokia770_mmc_data[1] = &nokia770_mmc2_data;
238 	omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
239 }
240 
241 #else
242 static inline void nokia770_mmc_init(void)
243 {
244 }
245 #endif
246 
247 static void __init omap_nokia770_init(void)
248 {
249 	platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
250 	spi_register_board_info(nokia770_spi_board_info,
251 				ARRAY_SIZE(nokia770_spi_board_info));
252 	omap_serial_init();
253 	omap_register_i2c_bus(1, 100, NULL, 0);
254 	hwa742_dev_init();
255 	ads7846_dev_init();
256 	mipid_dev_init();
257 	omap1_usb_init(&nokia770_usb_config);
258 	nokia770_mmc_init();
259 }
260 
261 static void __init omap_nokia770_map_io(void)
262 {
263 	omap1_map_common_io();
264 }
265 
266 MACHINE_START(NOKIA770, "Nokia 770")
267 	.boot_params	= 0x10000100,
268 	.map_io		= omap_nokia770_map_io,
269 	.reserve	= omap_reserve,
270 	.init_irq	= omap_nokia770_init_irq,
271 	.init_machine	= omap_nokia770_init,
272 	.timer		= &omap_timer,
273 MACHINE_END
274