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/clkdev.h>
11#include <linux/irq.h>
12#include <linux/gpio.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/mutex.h>
16#include <linux/platform_device.h>
17#include <linux/input.h>
18#include <linux/omapfb.h>
19
20#include <linux/spi/spi.h>
21#include <linux/spi/ads7846.h>
22#include <linux/workqueue.h>
23#include <linux/delay.h>
24
25#include <linux/platform_data/keypad-omap.h>
26#include <linux/platform_data/lcd-mipid.h>
27#include <linux/platform_data/gpio-omap.h>
28#include <linux/platform_data/i2c-cbus-gpio.h>
29
30#include <asm/mach-types.h>
31#include <asm/mach/arch.h>
32#include <asm/mach/map.h>
33
34#include <mach/mux.h>
35
36#include <mach/hardware.h>
37#include <mach/usb.h>
38
39#include "common.h"
40#include "clock.h"
41#include "mmc.h"
42
43#define ADS7846_PENDOWN_GPIO	15
44
45static const unsigned int nokia770_keymap[] = {
46	KEY(1, 0, GROUP_0 | KEY_UP),
47	KEY(2, 0, GROUP_1 | KEY_F5),
48	KEY(0, 1, GROUP_0 | KEY_LEFT),
49	KEY(1, 1, GROUP_0 | KEY_ENTER),
50	KEY(2, 1, GROUP_0 | KEY_RIGHT),
51	KEY(0, 2, GROUP_1 | KEY_ESC),
52	KEY(1, 2, GROUP_0 | KEY_DOWN),
53	KEY(2, 2, GROUP_1 | KEY_F4),
54	KEY(0, 3, GROUP_2 | KEY_F7),
55	KEY(1, 3, GROUP_2 | KEY_F8),
56	KEY(2, 3, GROUP_2 | KEY_F6),
57};
58
59static struct resource nokia770_kp_resources[] = {
60	[0] = {
61		.start	= INT_KEYBOARD,
62		.end	= INT_KEYBOARD,
63		.flags	= IORESOURCE_IRQ,
64	},
65};
66
67static const struct matrix_keymap_data nokia770_keymap_data = {
68	.keymap		= nokia770_keymap,
69	.keymap_size	= ARRAY_SIZE(nokia770_keymap),
70};
71
72static struct omap_kp_platform_data nokia770_kp_data = {
73	.rows		= 8,
74	.cols		= 8,
75	.keymap_data	= &nokia770_keymap_data,
76	.delay		= 4,
77};
78
79static struct platform_device nokia770_kp_device = {
80	.name		= "omap-keypad",
81	.id		= -1,
82	.dev		= {
83		.platform_data = &nokia770_kp_data,
84	},
85	.num_resources	= ARRAY_SIZE(nokia770_kp_resources),
86	.resource	= nokia770_kp_resources,
87};
88
89static struct platform_device *nokia770_devices[] __initdata = {
90	&nokia770_kp_device,
91};
92
93static void mipid_shutdown(struct mipid_platform_data *pdata)
94{
95	if (pdata->nreset_gpio != -1) {
96		printk(KERN_INFO "shutdown LCD\n");
97		gpio_set_value(pdata->nreset_gpio, 0);
98		msleep(120);
99	}
100}
101
102static struct mipid_platform_data nokia770_mipid_platform_data = {
103	.shutdown = mipid_shutdown,
104};
105
106static struct omap_lcd_config nokia770_lcd_config __initdata = {
107	.ctrl_name	= "hwa742",
108};
109
110static void __init mipid_dev_init(void)
111{
112	nokia770_mipid_platform_data.nreset_gpio = 13;
113	nokia770_mipid_platform_data.data_lines = 16;
114
115	omapfb_set_lcd_config(&nokia770_lcd_config);
116}
117
118static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
119	.x_max		= 0x0fff,
120	.y_max		= 0x0fff,
121	.x_plate_ohms	= 180,
122	.pressure_max	= 255,
123	.debounce_max	= 10,
124	.debounce_tol	= 3,
125	.debounce_rep	= 1,
126	.gpio_pendown	= ADS7846_PENDOWN_GPIO,
127};
128
129static struct spi_board_info nokia770_spi_board_info[] __initdata = {
130	[0] = {
131		.modalias       = "lcd_mipid",
132		.bus_num        = 2,
133		.chip_select    = 3,
134		.max_speed_hz   = 12000000,
135		.platform_data	= &nokia770_mipid_platform_data,
136	},
137	[1] = {
138		.modalias       = "ads7846",
139		.bus_num        = 2,
140		.chip_select    = 0,
141		.max_speed_hz   = 2500000,
142		.platform_data	= &nokia770_ads7846_platform_data,
143	},
144};
145
146static void __init hwa742_dev_init(void)
147{
148	clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
149}
150
151/* assume no Mini-AB port */
152
153static struct omap_usb_config nokia770_usb_config __initdata = {
154	.otg		= 1,
155	.register_host	= 1,
156	.register_dev	= 1,
157	.hmc_mode	= 16,
158	.pins[0]	= 6,
159	.extcon		= "tahvo-usb",
160};
161
162#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
163
164#define NOKIA770_GPIO_MMC_POWER		41
165#define NOKIA770_GPIO_MMC_SWITCH	23
166
167static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
168				int vdd)
169{
170	gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
171	return 0;
172}
173
174static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
175{
176	return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
177}
178
179static struct omap_mmc_platform_data nokia770_mmc2_data = {
180	.nr_slots                       = 1,
181	.max_freq                       = 12000000,
182	.slots[0]       = {
183		.set_power		= nokia770_mmc_set_power,
184		.get_cover_state	= nokia770_mmc_get_cover_state,
185		.ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
186		.name                   = "mmcblk",
187	},
188};
189
190static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
191
192static void __init nokia770_mmc_init(void)
193{
194	int ret;
195
196	ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
197	if (ret < 0)
198		return;
199	gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
200
201	ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
202	if (ret < 0) {
203		gpio_free(NOKIA770_GPIO_MMC_POWER);
204		return;
205	}
206	gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
207
208	/* Only the second MMC controller is used */
209	nokia770_mmc_data[1] = &nokia770_mmc2_data;
210	omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
211}
212
213#else
214static inline void nokia770_mmc_init(void)
215{
216}
217#endif
218
219#if defined(CONFIG_I2C_CBUS_GPIO) || defined(CONFIG_I2C_CBUS_GPIO_MODULE)
220static struct i2c_cbus_platform_data nokia770_cbus_data = {
221	.clk_gpio = OMAP_MPUIO(9),
222	.dat_gpio = OMAP_MPUIO(10),
223	.sel_gpio = OMAP_MPUIO(11),
224};
225
226static struct platform_device nokia770_cbus_device = {
227	.name   = "i2c-cbus-gpio",
228	.id     = 2,
229	.dev    = {
230		.platform_data = &nokia770_cbus_data,
231	},
232};
233
234static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
235	{
236		I2C_BOARD_INFO("retu-mfd", 0x01),
237	},
238	{
239		I2C_BOARD_INFO("tahvo-mfd", 0x02),
240	},
241};
242
243static void __init nokia770_cbus_init(void)
244{
245	const int retu_irq_gpio = 62;
246	const int tahvo_irq_gpio = 40;
247
248	if (gpio_request_one(retu_irq_gpio, GPIOF_IN, "Retu IRQ"))
249		return;
250	if (gpio_request_one(tahvo_irq_gpio, GPIOF_IN, "Tahvo IRQ")) {
251		gpio_free(retu_irq_gpio);
252		return;
253	}
254	irq_set_irq_type(gpio_to_irq(retu_irq_gpio), IRQ_TYPE_EDGE_RISING);
255	irq_set_irq_type(gpio_to_irq(tahvo_irq_gpio), IRQ_TYPE_EDGE_RISING);
256	nokia770_i2c_board_info_2[0].irq = gpio_to_irq(retu_irq_gpio);
257	nokia770_i2c_board_info_2[1].irq = gpio_to_irq(tahvo_irq_gpio);
258	i2c_register_board_info(2, nokia770_i2c_board_info_2,
259				ARRAY_SIZE(nokia770_i2c_board_info_2));
260	platform_device_register(&nokia770_cbus_device);
261}
262#else /* CONFIG_I2C_CBUS_GPIO */
263static void __init nokia770_cbus_init(void)
264{
265}
266#endif /* CONFIG_I2C_CBUS_GPIO */
267
268static void __init omap_nokia770_init(void)
269{
270	/* On Nokia 770, the SleepX signal is masked with an
271	 * MPUIO line by default.  It has to be unmasked for it
272	 * to become functional */
273
274	/* SleepX mask direction */
275	omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
276	/* Unmask SleepX signal */
277	omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
278
279	platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
280	nokia770_spi_board_info[1].irq = gpio_to_irq(15);
281	spi_register_board_info(nokia770_spi_board_info,
282				ARRAY_SIZE(nokia770_spi_board_info));
283	omap_serial_init();
284	omap_register_i2c_bus(1, 100, NULL, 0);
285	hwa742_dev_init();
286	mipid_dev_init();
287	omap1_usb_init(&nokia770_usb_config);
288	nokia770_mmc_init();
289	nokia770_cbus_init();
290}
291
292MACHINE_START(NOKIA770, "Nokia 770")
293	.atag_offset	= 0x100,
294	.map_io		= omap16xx_map_io,
295	.init_early     = omap1_init_early,
296	.init_irq	= omap1_init_irq,
297	.handle_irq	= omap1_handle_irq,
298	.init_machine	= omap_nokia770_init,
299	.init_late	= omap1_init_late,
300	.init_time	= omap1_timer_init,
301	.restart	= omap1_restart,
302MACHINE_END
303