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 #include <linux/gpio.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/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 <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
27 
28 #include <plat/mux.h>
29 #include <plat/usb.h>
30 #include <plat/board.h>
31 #include <plat/keypad.h>
32 #include <plat/lcd_mipid.h>
33 #include <plat/mmc.h>
34 #include <plat/clock.h>
35 
36 #include <mach/hardware.h>
37 
38 #include "common.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 struct omap_lcd_config nokia770_lcd_config __initdata = {
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 void __init ads7846_dev_init(void)
116 {
117 	if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
118 		printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
119 }
120 
121 static int ads7846_get_pendown_state(void)
122 {
123 	return !gpio_get_value(ADS7846_PENDOWN_GPIO);
124 }
125 
126 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
127 	.x_max		= 0x0fff,
128 	.y_max		= 0x0fff,
129 	.x_plate_ohms	= 180,
130 	.pressure_max	= 255,
131 	.debounce_max	= 10,
132 	.debounce_tol	= 3,
133 	.debounce_rep	= 1,
134 	.get_pendown_state	= ads7846_get_pendown_state,
135 };
136 
137 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
138 	[0] = {
139 		.modalias       = "lcd_mipid",
140 		.bus_num        = 2,
141 		.chip_select    = 3,
142 		.max_speed_hz   = 12000000,
143 		.platform_data	= &nokia770_mipid_platform_data,
144 	},
145 	[1] = {
146 		.modalias       = "ads7846",
147 		.bus_num        = 2,
148 		.chip_select    = 0,
149 		.max_speed_hz   = 2500000,
150 		.platform_data	= &nokia770_ads7846_platform_data,
151 	},
152 };
153 
154 static void __init hwa742_dev_init(void)
155 {
156 	clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
157 }
158 
159 /* assume no Mini-AB port */
160 
161 static struct omap_usb_config nokia770_usb_config __initdata = {
162 	.otg		= 1,
163 	.register_host	= 1,
164 	.register_dev	= 1,
165 	.hmc_mode	= 16,
166 	.pins[0]	= 6,
167 };
168 
169 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
170 
171 #define NOKIA770_GPIO_MMC_POWER		41
172 #define NOKIA770_GPIO_MMC_SWITCH	23
173 
174 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
175 				int vdd)
176 {
177 	gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
178 	return 0;
179 }
180 
181 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
182 {
183 	return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
184 }
185 
186 static struct omap_mmc_platform_data nokia770_mmc2_data = {
187 	.nr_slots                       = 1,
188 	.dma_mask			= 0xffffffff,
189 	.max_freq                       = 12000000,
190 	.slots[0]       = {
191 		.set_power		= nokia770_mmc_set_power,
192 		.get_cover_state	= nokia770_mmc_get_cover_state,
193 		.ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
194 		.name                   = "mmcblk",
195 	},
196 };
197 
198 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
199 
200 static void __init nokia770_mmc_init(void)
201 {
202 	int ret;
203 
204 	ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
205 	if (ret < 0)
206 		return;
207 	gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
208 
209 	ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
210 	if (ret < 0) {
211 		gpio_free(NOKIA770_GPIO_MMC_POWER);
212 		return;
213 	}
214 	gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
215 
216 	/* Only the second MMC controller is used */
217 	nokia770_mmc_data[1] = &nokia770_mmc2_data;
218 	omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
219 }
220 
221 #else
222 static inline void nokia770_mmc_init(void)
223 {
224 }
225 #endif
226 
227 static void __init omap_nokia770_init(void)
228 {
229 	/* On Nokia 770, the SleepX signal is masked with an
230 	 * MPUIO line by default.  It has to be unmasked for it
231 	 * to become functional */
232 
233 	/* SleepX mask direction */
234 	omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
235 	/* Unmask SleepX signal */
236 	omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
237 
238 	platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
239 	nokia770_spi_board_info[1].irq = gpio_to_irq(15);
240 	spi_register_board_info(nokia770_spi_board_info,
241 				ARRAY_SIZE(nokia770_spi_board_info));
242 	omap_serial_init();
243 	omap_register_i2c_bus(1, 100, NULL, 0);
244 	hwa742_dev_init();
245 	ads7846_dev_init();
246 	mipid_dev_init();
247 	omap1_usb_init(&nokia770_usb_config);
248 	nokia770_mmc_init();
249 }
250 
251 MACHINE_START(NOKIA770, "Nokia 770")
252 	.atag_offset	= 0x100,
253 	.map_io		= omap16xx_map_io,
254 	.init_early     = omap1_init_early,
255 	.reserve	= omap_reserve,
256 	.init_irq	= omap1_init_irq,
257 	.init_machine	= omap_nokia770_init,
258 	.timer		= &omap1_timer,
259 	.restart	= omap1_restart,
260 MACHINE_END
261