2 * linux/arch/arm/mach-omap1/board-nokia770.c
4 * Modified from board-generic.c
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.
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>
18 #include <linux/spi/spi.h>
19 #include <linux/spi/ads7846.h>
20 #include <linux/workqueue.h>
21 #include <linux/delay.h>
23 #include <mach/hardware.h>
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
28 #include <mach/gpio.h>
31 #include <mach/board.h>
32 #include <mach/keypad.h>
33 #include <mach/common.h>
34 #include <mach/dsp_common.h>
35 #include <mach/omapfb.h>
36 #include <mach/lcd_mipid.h>
40 #define ADS7846_PENDOWN_GPIO 15
42 static void __init omap_nokia770_init_irq(void)
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 */
48 /* SleepX mask direction */
49 omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
50 /* Unmask SleepX signal */
51 omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
53 omap1_init_common_hw();
57 static int nokia770_keymap[] = {
58 KEY(0, 1, GROUP_0 | KEY_UP),
59 KEY(0, 2, GROUP_1 | KEY_F5),
60 KEY(1, 0, GROUP_0 | KEY_LEFT),
61 KEY(1, 1, GROUP_0 | KEY_ENTER),
62 KEY(1, 2, GROUP_0 | KEY_RIGHT),
63 KEY(2, 0, GROUP_1 | KEY_ESC),
64 KEY(2, 1, GROUP_0 | KEY_DOWN),
65 KEY(2, 2, GROUP_1 | KEY_F4),
66 KEY(3, 0, GROUP_2 | KEY_F7),
67 KEY(3, 1, GROUP_2 | KEY_F8),
68 KEY(3, 2, GROUP_2 | KEY_F6),
72 static struct resource nokia770_kp_resources[] = {
74 .start = INT_KEYBOARD,
76 .flags = IORESOURCE_IRQ,
80 static struct omap_kp_platform_data nokia770_kp_data = {
83 .keymap = nokia770_keymap,
84 .keymapsize = ARRAY_SIZE(nokia770_keymap),
88 static struct platform_device nokia770_kp_device = {
89 .name = "omap-keypad",
92 .platform_data = &nokia770_kp_data,
94 .num_resources = ARRAY_SIZE(nokia770_kp_resources),
95 .resource = nokia770_kp_resources,
98 static struct platform_device *nokia770_devices[] __initdata = {
102 static void mipid_shutdown(struct mipid_platform_data *pdata)
104 if (pdata->nreset_gpio != -1) {
105 printk(KERN_INFO "shutdown LCD\n");
106 gpio_set_value(pdata->nreset_gpio, 0);
111 static struct mipid_platform_data nokia770_mipid_platform_data = {
112 .shutdown = mipid_shutdown,
115 static void mipid_dev_init(void)
117 const struct omap_lcd_config *conf;
119 conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
121 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
122 nokia770_mipid_platform_data.data_lines = conf->data_lines;
126 static void ads7846_dev_init(void)
128 if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
129 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
132 static int ads7846_get_pendown_state(void)
134 return !gpio_get_value(ADS7846_PENDOWN_GPIO);
137 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
145 .get_pendown_state = ads7846_get_pendown_state,
148 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
150 .modalias = "lcd_mipid",
153 .max_speed_hz = 12000000,
154 .platform_data = &nokia770_mipid_platform_data,
157 .modalias = "ads7846",
160 .max_speed_hz = 2500000,
161 .irq = OMAP_GPIO_IRQ(15),
162 .platform_data = &nokia770_ads7846_platform_data,
167 /* assume no Mini-AB port */
169 static struct omap_usb_config nokia770_usb_config __initdata = {
177 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
179 #define NOKIA770_GPIO_MMC_POWER 41
180 #define NOKIA770_GPIO_MMC_SWITCH 23
182 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
185 gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
189 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
191 return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
194 static struct omap_mmc_platform_data nokia770_mmc2_data = {
196 .dma_mask = 0xffffffff,
198 .set_power = nokia770_mmc_set_power,
199 .get_cover_state = nokia770_mmc_get_cover_state,
204 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
206 static void __init nokia770_mmc_init(void)
210 ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
213 gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
215 ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
217 gpio_free(NOKIA770_GPIO_MMC_POWER);
220 gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
222 /* Only the second MMC controller is used */
223 nokia770_mmc_data[1] = &nokia770_mmc2_data;
224 omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
228 static inline void nokia770_mmc_init(void)
233 #if defined(CONFIG_OMAP_DSP)
235 * audio power control
237 #define HEADPHONE_GPIO 14
238 #define AMPLIFIER_CTRL_GPIO 58
240 static struct clk *dspxor_ck;
241 static DEFINE_MUTEX(audio_pwr_lock);
244 * +--+-------------------------+---------------------------------------+
245 * |-1|down |power-up request -> 0 |
246 * +--+-------------------------+---------------------------------------+
247 * | 0|up |power-down(1) request -> 1 |
248 * | | |power-down(2) request -> (ignore) |
249 * +--+-------------------------+---------------------------------------+
250 * | 1|up, |power-up request -> 0 |
251 * | |received down(1) request |power-down(2) request -> -1 |
252 * +--+-------------------------+---------------------------------------+
254 static int audio_pwr_state = -1;
256 static inline void aic23_power_up(void)
259 static inline void aic23_power_down(void)
264 * audio_pwr_up / down should be called under audio_pwr_lock
266 static void nokia770_audio_pwr_up(void)
268 clk_enable(dspxor_ck);
273 if (gpio_get_value(HEADPHONE_GPIO))
274 /* HP not connected, turn on amplifier */
275 gpio_set_value(AMPLIFIER_CTRL_GPIO, 1);
277 /* HP connected, do not turn on amplifier */
278 printk("HP connected\n");
281 static void codec_delayed_power_down(struct work_struct *work)
283 mutex_lock(&audio_pwr_lock);
284 if (audio_pwr_state == -1)
286 clk_disable(dspxor_ck);
287 mutex_unlock(&audio_pwr_lock);
290 static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
292 static void nokia770_audio_pwr_down(void)
294 /* Turn off amplifier */
295 gpio_set_value(AMPLIFIER_CTRL_GPIO, 0);
297 /* Turn off codec: schedule delayed work */
298 schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
302 nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
304 mutex_lock(&audio_pwr_lock);
305 if (audio_pwr_state == -1)
306 nokia770_audio_pwr_up();
307 /* force audio_pwr_state = 0, even if it was 1. */
309 mutex_unlock(&audio_pwr_lock);
314 nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
316 mutex_lock(&audio_pwr_lock);
319 if (audio_pwr_state == 0)
323 if (audio_pwr_state == 1) {
324 nokia770_audio_pwr_down();
325 audio_pwr_state = -1;
329 mutex_unlock(&audio_pwr_lock);
333 static struct dsp_kfunc_device nokia770_audio_device = {
335 .type = DSP_KFUNC_DEV_TYPE_AUDIO,
336 .enable = nokia770_audio_pwr_up_request,
337 .disable = nokia770_audio_pwr_down_request,
340 static __init int omap_dsp_init(void)
344 dspxor_ck = clk_get(0, "dspxor_ck");
345 if (IS_ERR(dspxor_ck)) {
346 printk(KERN_ERR "couldn't acquire dspxor_ck\n");
347 return PTR_ERR(dspxor_ck);
350 ret = dsp_kfunc_device_register(&nokia770_audio_device);
353 "KFUNC device registration faild: %s\n",
354 nokia770_audio_device.name);
362 #define omap_dsp_init() do {} while (0)
363 #endif /* CONFIG_OMAP_DSP */
365 static void __init omap_nokia770_init(void)
367 platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
368 spi_register_board_info(nokia770_spi_board_info,
369 ARRAY_SIZE(nokia770_spi_board_info));
372 omap_register_i2c_bus(1, 100, NULL, 0);
376 omap_usb_init(&nokia770_usb_config);
380 static void __init omap_nokia770_map_io(void)
382 omap1_map_common_io();
385 MACHINE_START(NOKIA770, "Nokia 770")
386 .phys_io = 0xfff00000,
387 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
388 .boot_params = 0x10000100,
389 .map_io = omap_nokia770_map_io,
390 .init_irq = omap_nokia770_init_irq,
391 .init_machine = omap_nokia770_init,
392 .timer = &omap_timer,