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>
20 #include <asm/hardware.h>
21 #include <asm/mach-types.h>
22 #include <asm/mach/arch.h>
23 #include <asm/mach/map.h>
25 #include <asm/arch/gpio.h>
26 #include <asm/arch/mux.h>
27 #include <asm/arch/usb.h>
28 #include <asm/arch/board.h>
29 #include <asm/arch/keypad.h>
30 #include <asm/arch/common.h>
31 #include <asm/arch/dsp_common.h>
32 #include <asm/arch/aic23.h>
33 #include <asm/arch/gpio.h>
35 static void __init
omap_nokia770_init_irq(void)
37 /* On Nokia 770, the SleepX signal is masked with an
38 * MPUIO line by default. It has to be unmasked for it
39 * to become functional */
41 /* SleepX mask direction */
42 omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
43 /* Unmask SleepX signal */
44 omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
46 omap1_init_common_hw();
50 static int nokia770_keymap
[] = {
51 KEY(0, 1, GROUP_0
| KEY_UP
),
52 KEY(0, 2, GROUP_1
| KEY_F5
),
53 KEY(1, 0, GROUP_0
| KEY_LEFT
),
54 KEY(1, 1, GROUP_0
| KEY_ENTER
),
55 KEY(1, 2, GROUP_0
| KEY_RIGHT
),
56 KEY(2, 0, GROUP_1
| KEY_ESC
),
57 KEY(2, 1, GROUP_0
| KEY_DOWN
),
58 KEY(2, 2, GROUP_1
| KEY_F4
),
59 KEY(3, 0, GROUP_2
| KEY_F7
),
60 KEY(3, 1, GROUP_2
| KEY_F8
),
61 KEY(3, 2, GROUP_2
| KEY_F6
),
65 static struct resource nokia770_kp_resources
[] = {
67 .start
= INT_KEYBOARD
,
69 .flags
= IORESOURCE_IRQ
,
73 static struct omap_kp_platform_data nokia770_kp_data
= {
76 .keymap
= nokia770_keymap
79 static struct platform_device nokia770_kp_device
= {
80 .name
= "omap-keypad",
83 .platform_data
= &nokia770_kp_data
,
85 .num_resources
= ARRAY_SIZE(nokia770_kp_resources
),
86 .resource
= nokia770_kp_resources
,
89 static struct platform_device
*nokia770_devices
[] __initdata
= {
93 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata
= {
102 static struct spi_board_info nokia770_spi_board_info
[] __initdata
= {
104 .modalias
= "lcd_lph8923",
107 .max_speed_hz
= 12000000,
110 .modalias
= "ads7846",
113 .max_speed_hz
= 2500000,
114 .irq
= OMAP_GPIO_IRQ(15),
115 .platform_data
= &nokia770_ads7846_platform_data
,
120 /* assume no Mini-AB port */
122 static struct omap_usb_config nokia770_usb_config __initdata
= {
130 static struct omap_mmc_config nokia770_mmc_config __initdata
= {
147 static struct omap_board_config_kernel nokia770_config
[] = {
148 { OMAP_TAG_USB
, NULL
},
149 { OMAP_TAG_MMC
, &nokia770_mmc_config
},
153 * audio power control
155 #define HEADPHONE_GPIO 14
156 #define AMPLIFIER_CTRL_GPIO 58
158 static struct clk
*dspxor_ck
;
159 static DECLARE_MUTEX(audio_pwr_sem
);
162 * +--+-------------------------+---------------------------------------+
163 * |-1|down |power-up request -> 0 |
164 * +--+-------------------------+---------------------------------------+
165 * | 0|up |power-down(1) request -> 1 |
166 * | | |power-down(2) request -> (ignore) |
167 * +--+-------------------------+---------------------------------------+
168 * | 1|up, |power-up request -> 0 |
169 * | |received down(1) request |power-down(2) request -> -1 |
170 * +--+-------------------------+---------------------------------------+
172 static int audio_pwr_state
= -1;
175 * audio_pwr_up / down should be called under audio_pwr_sem
177 static void nokia770_audio_pwr_up(void)
179 clk_enable(dspxor_ck
);
182 tlv320aic23_power_up();
184 if (omap_get_gpio_datain(HEADPHONE_GPIO
))
185 /* HP not connected, turn on amplifier */
186 omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO
, 1);
188 /* HP connected, do not turn on amplifier */
189 printk("HP connected\n");
192 static void codec_delayed_power_down(void *arg
)
194 down(&audio_pwr_sem
);
195 if (audio_pwr_state
== -1)
196 tlv320aic23_power_down();
197 clk_disable(dspxor_ck
);
201 static DECLARE_WORK(codec_power_down_work
, codec_delayed_power_down
, NULL
);
203 static void nokia770_audio_pwr_down(void)
205 /* Turn off amplifier */
206 omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO
, 0);
208 /* Turn off codec: schedule delayed work */
209 schedule_delayed_work(&codec_power_down_work
, HZ
/ 20); /* 50ms */
212 void nokia770_audio_pwr_up_request(int stage
)
214 down(&audio_pwr_sem
);
215 if (audio_pwr_state
== -1)
216 nokia770_audio_pwr_up();
217 /* force audio_pwr_state = 0, even if it was 1. */
222 void nokia770_audio_pwr_down_request(int stage
)
224 down(&audio_pwr_sem
);
227 if (audio_pwr_state
== 0)
231 if (audio_pwr_state
== 1) {
232 nokia770_audio_pwr_down();
233 audio_pwr_state
= -1;
240 static void __init
omap_nokia770_init(void)
242 nokia770_config
[0].data
= &nokia770_usb_config
;
244 platform_add_devices(nokia770_devices
, ARRAY_SIZE(nokia770_devices
));
245 spi_register_board_info(nokia770_spi_board_info
,
246 ARRAY_SIZE(nokia770_spi_board_info
));
247 omap_board_config
= nokia770_config
;
248 omap_board_config_size
= ARRAY_SIZE(nokia770_config
);
250 omap_dsp_audio_pwr_up_request
= nokia770_audio_pwr_up_request
;
251 omap_dsp_audio_pwr_down_request
= nokia770_audio_pwr_down_request
;
252 dspxor_ck
= clk_get(0, "dspxor_ck");
255 static void __init
omap_nokia770_map_io(void)
257 omap1_map_common_io();
260 MACHINE_START(NOKIA770
, "Nokia 770")
261 .phys_io
= 0xfff00000,
262 .io_pg_offst
= ((0xfef00000) >> 18) & 0xfffc,
263 .boot_params
= 0x10000100,
264 .map_io
= omap_nokia770_map_io
,
265 .init_irq
= omap_nokia770_init_irq
,
266 .init_machine
= omap_nokia770_init
,
267 .timer
= &omap_timer
,