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/aic23.h>
36 #include <mach/omapfb.h>
37 #include <mach/hwa742.h>
38 #include <mach/lcd_mipid.h>
41 #define ADS7846_PENDOWN_GPIO 15
43 static void __init omap_nokia770_init_irq(void)
45 /* On Nokia 770, the SleepX signal is masked with an
46 * MPUIO line by default. It has to be unmasked for it
47 * to become functional */
49 /* SleepX mask direction */
50 omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
51 /* Unmask SleepX signal */
52 omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
54 omap1_init_common_hw();
58 static int nokia770_keymap[] = {
59 KEY(0, 1, GROUP_0 | KEY_UP),
60 KEY(0, 2, GROUP_1 | KEY_F5),
61 KEY(1, 0, GROUP_0 | KEY_LEFT),
62 KEY(1, 1, GROUP_0 | KEY_ENTER),
63 KEY(1, 2, GROUP_0 | KEY_RIGHT),
64 KEY(2, 0, GROUP_1 | KEY_ESC),
65 KEY(2, 1, GROUP_0 | KEY_DOWN),
66 KEY(2, 2, GROUP_1 | KEY_F4),
67 KEY(3, 0, GROUP_2 | KEY_F7),
68 KEY(3, 1, GROUP_2 | KEY_F8),
69 KEY(3, 2, GROUP_2 | KEY_F6),
73 static struct resource nokia770_kp_resources[] = {
75 .start = INT_KEYBOARD,
77 .flags = IORESOURCE_IRQ,
81 static struct omap_kp_platform_data nokia770_kp_data = {
84 .keymap = nokia770_keymap,
85 .keymapsize = ARRAY_SIZE(nokia770_keymap),
89 static struct platform_device nokia770_kp_device = {
90 .name = "omap-keypad",
93 .platform_data = &nokia770_kp_data,
95 .num_resources = ARRAY_SIZE(nokia770_kp_resources),
96 .resource = nokia770_kp_resources,
99 static struct platform_device *nokia770_devices[] __initdata = {
103 static void mipid_shutdown(struct mipid_platform_data *pdata)
105 if (pdata->nreset_gpio != -1) {
106 printk(KERN_INFO "shutdown LCD\n");
107 omap_set_gpio_dataout(pdata->nreset_gpio, 0);
112 static struct mipid_platform_data nokia770_mipid_platform_data = {
113 .shutdown = mipid_shutdown,
116 static void mipid_dev_init(void)
118 const struct omap_lcd_config *conf;
120 conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
122 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
123 nokia770_mipid_platform_data.data_lines = conf->data_lines;
127 static void ads7846_dev_init(void)
129 if (omap_request_gpio(ADS7846_PENDOWN_GPIO) < 0)
130 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
133 static int ads7846_get_pendown_state(void)
135 return !omap_get_gpio_datain(ADS7846_PENDOWN_GPIO);
138 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
146 .get_pendown_state = ads7846_get_pendown_state,
149 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
151 .modalias = "lcd_mipid",
154 .max_speed_hz = 12000000,
155 .platform_data = &nokia770_mipid_platform_data,
158 .modalias = "ads7846",
161 .max_speed_hz = 2500000,
162 .irq = OMAP_GPIO_IRQ(15),
163 .platform_data = &nokia770_ads7846_platform_data,
171 static int hwa742_get_clocks(void)
173 hwa742.sys_ck = clk_get(NULL, "bclk");
174 if (IS_ERR(hwa742.sys_ck)) {
175 printk(KERN_ERR "can't get HWA742 clock\n");
176 return PTR_ERR(hwa742.sys_ck);
181 static unsigned long hwa742_get_clock_rate(struct device *dev)
183 return clk_get_rate(hwa742.sys_ck);
186 static void hwa742_power_up(struct device *dev)
188 clk_enable(hwa742.sys_ck);
191 static void hwa742_power_down(struct device *dev)
193 clk_disable(hwa742.sys_ck);
196 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
197 .get_clock_rate = hwa742_get_clock_rate,
198 .power_up = hwa742_power_up,
199 .power_down = hwa742_power_down,
203 static void hwa742_dev_init(void)
206 omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
209 /* assume no Mini-AB port */
211 static struct omap_usb_config nokia770_usb_config __initdata = {
219 static struct omap_mmc_platform_data nokia770_mmc_data = {
240 static struct omap_board_config_kernel nokia770_config[] __initdata = {
241 { OMAP_TAG_USB, NULL },
244 #if defined(CONFIG_OMAP_DSP)
246 * audio power control
248 #define HEADPHONE_GPIO 14
249 #define AMPLIFIER_CTRL_GPIO 58
251 static struct clk *dspxor_ck;
252 static DEFINE_MUTEX(audio_pwr_lock);
255 * +--+-------------------------+---------------------------------------+
256 * |-1|down |power-up request -> 0 |
257 * +--+-------------------------+---------------------------------------+
258 * | 0|up |power-down(1) request -> 1 |
259 * | | |power-down(2) request -> (ignore) |
260 * +--+-------------------------+---------------------------------------+
261 * | 1|up, |power-up request -> 0 |
262 * | |received down(1) request |power-down(2) request -> -1 |
263 * +--+-------------------------+---------------------------------------+
265 static int audio_pwr_state = -1;
268 * audio_pwr_up / down should be called under audio_pwr_lock
270 static void nokia770_audio_pwr_up(void)
272 clk_enable(dspxor_ck);
277 if (omap_get_gpio_datain(HEADPHONE_GPIO))
278 /* HP not connected, turn on amplifier */
279 omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1);
281 /* HP connected, do not turn on amplifier */
282 printk("HP connected\n");
285 static void codec_delayed_power_down(struct work_struct *work)
287 mutex_lock(&audio_pwr_lock);
288 if (audio_pwr_state == -1)
290 clk_disable(dspxor_ck);
291 mutex_unlock(&audio_pwr_lock);
294 static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
296 static void nokia770_audio_pwr_down(void)
298 /* Turn off amplifier */
299 omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0);
301 /* Turn off codec: schedule delayed work */
302 schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
306 nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
308 mutex_lock(&audio_pwr_lock);
309 if (audio_pwr_state == -1)
310 nokia770_audio_pwr_up();
311 /* force audio_pwr_state = 0, even if it was 1. */
313 mutex_unlock(&audio_pwr_lock);
318 nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
320 mutex_lock(&audio_pwr_lock);
323 if (audio_pwr_state == 0)
327 if (audio_pwr_state == 1) {
328 nokia770_audio_pwr_down();
329 audio_pwr_state = -1;
333 mutex_unlock(&audio_pwr_lock);
337 static struct dsp_kfunc_device nokia770_audio_device = {
339 .type = DSP_KFUNC_DEV_TYPE_AUDIO,
340 .enable = nokia770_audio_pwr_up_request,
341 .disable = nokia770_audio_pwr_down_request,
344 static __init int omap_dsp_init(void)
348 dspxor_ck = clk_get(0, "dspxor_ck");
349 if (IS_ERR(dspxor_ck)) {
350 printk(KERN_ERR "couldn't acquire dspxor_ck\n");
351 return PTR_ERR(dspxor_ck);
354 ret = dsp_kfunc_device_register(&nokia770_audio_device);
357 "KFUNC device registration faild: %s\n",
358 nokia770_audio_device.name);
366 #define omap_dsp_init() do {} while (0)
367 #endif /* CONFIG_OMAP_DSP */
369 static void __init omap_nokia770_init(void)
371 nokia770_config[0].data = &nokia770_usb_config;
373 platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
374 spi_register_board_info(nokia770_spi_board_info,
375 ARRAY_SIZE(nokia770_spi_board_info));
376 omap_board_config = nokia770_config;
377 omap_board_config_size = ARRAY_SIZE(nokia770_config);
380 omap_register_i2c_bus(1, 100, NULL, 0);
385 omap1_init_mmc(&nokia770_mmc_data);
388 static void __init omap_nokia770_map_io(void)
390 omap1_map_common_io();
393 MACHINE_START(NOKIA770, "Nokia 770")
394 .phys_io = 0xfff00000,
395 .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
396 .boot_params = 0x10000100,
397 .map_io = omap_nokia770_map_io,
398 .init_irq = omap_nokia770_init_irq,
399 .init_machine = omap_nokia770_init,
400 .timer = &omap_timer,