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/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
,
186 gpio_set_value(NOKIA770_GPIO_MMC_POWER
, 1);
188 gpio_set_value(NOKIA770_GPIO_MMC_POWER
, 0);
193 static int nokia770_mmc_get_cover_state(struct device
*dev
, int slot
)
195 return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH
);
198 static struct omap_mmc_platform_data nokia770_mmc2_data
= {
200 .dma_mask
= 0xffffffff,
202 .set_power
= nokia770_mmc_set_power
,
203 .get_cover_state
= nokia770_mmc_get_cover_state
,
208 static struct omap_mmc_platform_data
*nokia770_mmc_data
[OMAP16XX_NR_MMC
];
210 static void __init
nokia770_mmc_init(void)
214 ret
= gpio_request(NOKIA770_GPIO_MMC_POWER
, "MMC power");
217 gpio_direction_output(NOKIA770_GPIO_MMC_POWER
, 0);
219 ret
= gpio_request(NOKIA770_GPIO_MMC_SWITCH
, "MMC cover");
221 gpio_free(NOKIA770_GPIO_MMC_POWER
);
224 gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH
);
226 /* Only the second MMC controller is used */
227 nokia770_mmc_data
[1] = &nokia770_mmc2_data
;
228 omap1_init_mmc(nokia770_mmc_data
, OMAP16XX_NR_MMC
);
232 static inline void nokia770_mmc_init(void)
237 static struct omap_board_config_kernel nokia770_config
[] __initdata
= {
238 { OMAP_TAG_USB
, NULL
},
241 #if defined(CONFIG_OMAP_DSP)
243 * audio power control
245 #define HEADPHONE_GPIO 14
246 #define AMPLIFIER_CTRL_GPIO 58
248 static struct clk
*dspxor_ck
;
249 static DEFINE_MUTEX(audio_pwr_lock
);
252 * +--+-------------------------+---------------------------------------+
253 * |-1|down |power-up request -> 0 |
254 * +--+-------------------------+---------------------------------------+
255 * | 0|up |power-down(1) request -> 1 |
256 * | | |power-down(2) request -> (ignore) |
257 * +--+-------------------------+---------------------------------------+
258 * | 1|up, |power-up request -> 0 |
259 * | |received down(1) request |power-down(2) request -> -1 |
260 * +--+-------------------------+---------------------------------------+
262 static int audio_pwr_state
= -1;
265 * audio_pwr_up / down should be called under audio_pwr_lock
267 static void nokia770_audio_pwr_up(void)
269 clk_enable(dspxor_ck
);
274 if (gpio_get_value(HEADPHONE_GPIO
))
275 /* HP not connected, turn on amplifier */
276 gpio_set_value(AMPLIFIER_CTRL_GPIO
, 1);
278 /* HP connected, do not turn on amplifier */
279 printk("HP connected\n");
282 static void codec_delayed_power_down(struct work_struct
*work
)
284 mutex_lock(&audio_pwr_lock
);
285 if (audio_pwr_state
== -1)
287 clk_disable(dspxor_ck
);
288 mutex_unlock(&audio_pwr_lock
);
291 static DECLARE_DELAYED_WORK(codec_power_down_work
, codec_delayed_power_down
);
293 static void nokia770_audio_pwr_down(void)
295 /* Turn off amplifier */
296 gpio_set_value(AMPLIFIER_CTRL_GPIO
, 0);
298 /* Turn off codec: schedule delayed work */
299 schedule_delayed_work(&codec_power_down_work
, HZ
/ 20); /* 50ms */
303 nokia770_audio_pwr_up_request(struct dsp_kfunc_device
*kdev
, int stage
)
305 mutex_lock(&audio_pwr_lock
);
306 if (audio_pwr_state
== -1)
307 nokia770_audio_pwr_up();
308 /* force audio_pwr_state = 0, even if it was 1. */
310 mutex_unlock(&audio_pwr_lock
);
315 nokia770_audio_pwr_down_request(struct dsp_kfunc_device
*kdev
, int stage
)
317 mutex_lock(&audio_pwr_lock
);
320 if (audio_pwr_state
== 0)
324 if (audio_pwr_state
== 1) {
325 nokia770_audio_pwr_down();
326 audio_pwr_state
= -1;
330 mutex_unlock(&audio_pwr_lock
);
334 static struct dsp_kfunc_device nokia770_audio_device
= {
336 .type
= DSP_KFUNC_DEV_TYPE_AUDIO
,
337 .enable
= nokia770_audio_pwr_up_request
,
338 .disable
= nokia770_audio_pwr_down_request
,
341 static __init
int omap_dsp_init(void)
345 dspxor_ck
= clk_get(0, "dspxor_ck");
346 if (IS_ERR(dspxor_ck
)) {
347 printk(KERN_ERR
"couldn't acquire dspxor_ck\n");
348 return PTR_ERR(dspxor_ck
);
351 ret
= dsp_kfunc_device_register(&nokia770_audio_device
);
354 "KFUNC device registration faild: %s\n",
355 nokia770_audio_device
.name
);
363 #define omap_dsp_init() do {} while (0)
364 #endif /* CONFIG_OMAP_DSP */
366 static void __init
omap_nokia770_init(void)
368 nokia770_config
[0].data
= &nokia770_usb_config
;
370 platform_add_devices(nokia770_devices
, ARRAY_SIZE(nokia770_devices
));
371 spi_register_board_info(nokia770_spi_board_info
,
372 ARRAY_SIZE(nokia770_spi_board_info
));
373 omap_board_config
= nokia770_config
;
374 omap_board_config_size
= ARRAY_SIZE(nokia770_config
);
377 omap_register_i2c_bus(1, 100, NULL
, 0);
384 static void __init
omap_nokia770_map_io(void)
386 omap1_map_common_io();
389 MACHINE_START(NOKIA770
, "Nokia 770")
390 .phys_io
= 0xfff00000,
391 .io_pg_offst
= ((0xfef00000) >> 18) & 0xfffc,
392 .boot_params
= 0x10000100,
393 .map_io
= omap_nokia770_map_io
,
394 .init_irq
= omap_nokia770_init_irq
,
395 .init_machine
= omap_nokia770_init
,
396 .timer
= &omap_timer
,