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/platform_device.h>
14 #include <linux/input.h>
15 #include <linux/clk.h>
17 #include <linux/spi/spi.h>
18 #include <linux/spi/ads7846.h>
19 #include <linux/workqueue.h>
20 #include <linux/delay.h>
22 #include <asm/hardware.h>
23 #include <asm/mach-types.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
27 #include <asm/arch/gpio.h>
28 #include <asm/arch/mux.h>
29 #include <asm/arch/usb.h>
30 #include <asm/arch/board.h>
31 #include <asm/arch/keypad.h>
32 #include <asm/arch/common.h>
33 #include <asm/arch/dsp_common.h>
34 #include <asm/arch/aic23.h>
35 #include <asm/arch/gpio.h>
37 #include "../plat-omap/dsp/dsp_common.h"
39 static void __init
omap_nokia770_init_irq(void)
41 /* On Nokia 770, the SleepX signal is masked with an
42 * MPUIO line by default. It has to be unmasked for it
43 * to become functional */
45 /* SleepX mask direction */
46 omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
47 /* Unmask SleepX signal */
48 omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
50 omap1_init_common_hw();
54 static int nokia770_keymap
[] = {
55 KEY(0, 1, GROUP_0
| KEY_UP
),
56 KEY(0, 2, GROUP_1
| KEY_F5
),
57 KEY(1, 0, GROUP_0
| KEY_LEFT
),
58 KEY(1, 1, GROUP_0
| KEY_ENTER
),
59 KEY(1, 2, GROUP_0
| KEY_RIGHT
),
60 KEY(2, 0, GROUP_1
| KEY_ESC
),
61 KEY(2, 1, GROUP_0
| KEY_DOWN
),
62 KEY(2, 2, GROUP_1
| KEY_F4
),
63 KEY(3, 0, GROUP_2
| KEY_F7
),
64 KEY(3, 1, GROUP_2
| KEY_F8
),
65 KEY(3, 2, GROUP_2
| KEY_F6
),
69 static struct resource nokia770_kp_resources
[] = {
71 .start
= INT_KEYBOARD
,
73 .flags
= IORESOURCE_IRQ
,
77 static struct omap_kp_platform_data nokia770_kp_data
= {
80 .keymap
= nokia770_keymap
,
81 .keymapsize
= ARRAY_SIZE(nokia770_keymap
),
85 static struct platform_device nokia770_kp_device
= {
86 .name
= "omap-keypad",
89 .platform_data
= &nokia770_kp_data
,
91 .num_resources
= ARRAY_SIZE(nokia770_kp_resources
),
92 .resource
= nokia770_kp_resources
,
95 static struct platform_device
*nokia770_devices
[] __initdata
= {
99 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata
= {
108 static struct spi_board_info nokia770_spi_board_info
[] __initdata
= {
110 .modalias
= "lcd_mipid",
113 .max_speed_hz
= 12000000,
116 .modalias
= "ads7846",
119 .max_speed_hz
= 2500000,
120 .irq
= OMAP_GPIO_IRQ(15),
121 .platform_data
= &nokia770_ads7846_platform_data
,
126 /* assume no Mini-AB port */
128 static struct omap_usb_config nokia770_usb_config __initdata
= {
136 static struct omap_mmc_config nokia770_mmc_config __initdata
= {
153 static struct omap_board_config_kernel nokia770_config
[] = {
154 { OMAP_TAG_USB
, NULL
},
155 { OMAP_TAG_MMC
, &nokia770_mmc_config
},
158 #if defined(CONFIG_OMAP_DSP)
160 * audio power control
162 #define HEADPHONE_GPIO 14
163 #define AMPLIFIER_CTRL_GPIO 58
165 static struct clk
*dspxor_ck
;
166 static DECLARE_MUTEX(audio_pwr_sem
);
169 * +--+-------------------------+---------------------------------------+
170 * |-1|down |power-up request -> 0 |
171 * +--+-------------------------+---------------------------------------+
172 * | 0|up |power-down(1) request -> 1 |
173 * | | |power-down(2) request -> (ignore) |
174 * +--+-------------------------+---------------------------------------+
175 * | 1|up, |power-up request -> 0 |
176 * | |received down(1) request |power-down(2) request -> -1 |
177 * +--+-------------------------+---------------------------------------+
179 static int audio_pwr_state
= -1;
182 * audio_pwr_up / down should be called under audio_pwr_sem
184 static void nokia770_audio_pwr_up(void)
186 clk_enable(dspxor_ck
);
191 if (omap_get_gpio_datain(HEADPHONE_GPIO
))
192 /* HP not connected, turn on amplifier */
193 omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO
, 1);
195 /* HP connected, do not turn on amplifier */
196 printk("HP connected\n");
199 static void codec_delayed_power_down(struct work_struct
*work
)
201 down(&audio_pwr_sem
);
202 if (audio_pwr_state
== -1)
204 clk_disable(dspxor_ck
);
208 static DECLARE_DELAYED_WORK(codec_power_down_work
, codec_delayed_power_down
);
210 static void nokia770_audio_pwr_down(void)
212 /* Turn off amplifier */
213 omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO
, 0);
215 /* Turn off codec: schedule delayed work */
216 schedule_delayed_work(&codec_power_down_work
, HZ
/ 20); /* 50ms */
220 nokia770_audio_pwr_up_request(struct dsp_kfunc_device
*kdev
, int stage
)
222 down(&audio_pwr_sem
);
223 if (audio_pwr_state
== -1)
224 nokia770_audio_pwr_up();
225 /* force audio_pwr_state = 0, even if it was 1. */
232 nokia770_audio_pwr_down_request(struct dsp_kfunc_device
*kdev
, int stage
)
234 down(&audio_pwr_sem
);
237 if (audio_pwr_state
== 0)
241 if (audio_pwr_state
== 1) {
242 nokia770_audio_pwr_down();
243 audio_pwr_state
= -1;
251 static struct dsp_kfunc_device nokia770_audio_device
= {
253 .type
= DSP_KFUNC_DEV_TYPE_AUDIO
,
254 .enable
= nokia770_audio_pwr_up_request
,
255 .disable
= nokia770_audio_pwr_down_request
,
258 static __init
int omap_dsp_init(void)
262 dspxor_ck
= clk_get(0, "dspxor_ck");
263 if (IS_ERR(dspxor_ck
)) {
264 printk(KERN_ERR
"couldn't acquire dspxor_ck\n");
265 return PTR_ERR(dspxor_ck
);
268 ret
= dsp_kfunc_device_register(&nokia770_audio_device
);
271 "KFUNC device registration faild: %s\n",
272 nokia770_audio_device
.name
);
279 #endif /* CONFIG_OMAP_DSP */
281 static void __init
omap_nokia770_init(void)
283 nokia770_config
[0].data
= &nokia770_usb_config
;
285 platform_add_devices(nokia770_devices
, ARRAY_SIZE(nokia770_devices
));
286 spi_register_board_info(nokia770_spi_board_info
,
287 ARRAY_SIZE(nokia770_spi_board_info
));
288 omap_board_config
= nokia770_config
;
289 omap_board_config_size
= ARRAY_SIZE(nokia770_config
);
294 static void __init
omap_nokia770_map_io(void)
296 omap1_map_common_io();
299 MACHINE_START(NOKIA770
, "Nokia 770")
300 .phys_io
= 0xfff00000,
301 .io_pg_offst
= ((0xfef00000) >> 18) & 0xfffc,
302 .boot_params
= 0x10000100,
303 .map_io
= omap_nokia770_map_io
,
304 .init_irq
= omap_nokia770_init_irq
,
305 .init_machine
= omap_nokia770_init
,
306 .timer
= &omap_timer
,