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9b6553cd TL |
1 | /* |
2 | * linux/arch/arm/mach-omap1/board-nokia770.c | |
3 | * | |
4 | * Modified from board-generic.c | |
5 | * | |
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. | |
9 | */ | |
10 | ||
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> | |
16 | ||
17 | #include <linux/spi/spi.h> | |
18 | #include <linux/spi/ads7846.h> | |
19350610 DB |
19 | #include <linux/workqueue.h> |
20 | #include <linux/delay.h> | |
9b6553cd TL |
21 | |
22 | #include <asm/hardware.h> | |
23 | #include <asm/mach-types.h> | |
24 | #include <asm/mach/arch.h> | |
25 | #include <asm/mach/map.h> | |
26 | ||
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> | |
36 | ||
37 | static void __init omap_nokia770_init_irq(void) | |
38 | { | |
39 | /* On Nokia 770, the SleepX signal is masked with an | |
40 | * MPUIO line by default. It has to be unmasked for it | |
41 | * to become functional */ | |
42 | ||
43 | /* SleepX mask direction */ | |
44 | omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008); | |
45 | /* Unmask SleepX signal */ | |
46 | omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004); | |
47 | ||
48 | omap1_init_common_hw(); | |
49 | omap_init_irq(); | |
50 | } | |
51 | ||
52 | static int nokia770_keymap[] = { | |
53 | KEY(0, 1, GROUP_0 | KEY_UP), | |
54 | KEY(0, 2, GROUP_1 | KEY_F5), | |
55 | KEY(1, 0, GROUP_0 | KEY_LEFT), | |
56 | KEY(1, 1, GROUP_0 | KEY_ENTER), | |
57 | KEY(1, 2, GROUP_0 | KEY_RIGHT), | |
58 | KEY(2, 0, GROUP_1 | KEY_ESC), | |
59 | KEY(2, 1, GROUP_0 | KEY_DOWN), | |
60 | KEY(2, 2, GROUP_1 | KEY_F4), | |
61 | KEY(3, 0, GROUP_2 | KEY_F7), | |
62 | KEY(3, 1, GROUP_2 | KEY_F8), | |
63 | KEY(3, 2, GROUP_2 | KEY_F6), | |
64 | 0 | |
65 | }; | |
66 | ||
67 | static struct resource nokia770_kp_resources[] = { | |
68 | [0] = { | |
69 | .start = INT_KEYBOARD, | |
70 | .end = INT_KEYBOARD, | |
71 | .flags = IORESOURCE_IRQ, | |
72 | }, | |
73 | }; | |
74 | ||
75 | static struct omap_kp_platform_data nokia770_kp_data = { | |
4d24607b KS |
76 | .rows = 8, |
77 | .cols = 8, | |
78 | .keymap = nokia770_keymap, | |
6d5aefb8 | 79 | .keymapsize = ARRAY_SIZE(nokia770_keymap), |
4d24607b | 80 | .delay = 4, |
9b6553cd TL |
81 | }; |
82 | ||
83 | static struct platform_device nokia770_kp_device = { | |
84 | .name = "omap-keypad", | |
85 | .id = -1, | |
86 | .dev = { | |
87 | .platform_data = &nokia770_kp_data, | |
88 | }, | |
89 | .num_resources = ARRAY_SIZE(nokia770_kp_resources), | |
90 | .resource = nokia770_kp_resources, | |
91 | }; | |
92 | ||
93 | static struct platform_device *nokia770_devices[] __initdata = { | |
94 | &nokia770_kp_device, | |
95 | }; | |
96 | ||
97 | static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = { | |
98 | .x_max = 0x0fff, | |
99 | .y_max = 0x0fff, | |
100 | .x_plate_ohms = 180, | |
101 | .pressure_max = 255, | |
102 | .debounce_max = 10, | |
103 | .debounce_tol = 3, | |
104 | }; | |
105 | ||
106 | static struct spi_board_info nokia770_spi_board_info[] __initdata = { | |
107 | [0] = { | |
e016a40c | 108 | .modalias = "lcd_mipid", |
9b6553cd TL |
109 | .bus_num = 2, |
110 | .chip_select = 3, | |
111 | .max_speed_hz = 12000000, | |
112 | }, | |
113 | [1] = { | |
114 | .modalias = "ads7846", | |
115 | .bus_num = 2, | |
116 | .chip_select = 0, | |
117 | .max_speed_hz = 2500000, | |
118 | .irq = OMAP_GPIO_IRQ(15), | |
119 | .platform_data = &nokia770_ads7846_platform_data, | |
120 | }, | |
121 | }; | |
122 | ||
123 | ||
124 | /* assume no Mini-AB port */ | |
125 | ||
126 | static struct omap_usb_config nokia770_usb_config __initdata = { | |
127 | .otg = 1, | |
128 | .register_host = 1, | |
129 | .register_dev = 1, | |
130 | .hmc_mode = 16, | |
131 | .pins[0] = 6, | |
132 | }; | |
133 | ||
134 | static struct omap_mmc_config nokia770_mmc_config __initdata = { | |
135 | .mmc[0] = { | |
136 | .enabled = 0, | |
137 | .wire4 = 0, | |
138 | .wp_pin = -1, | |
139 | .power_pin = -1, | |
140 | .switch_pin = -1, | |
141 | }, | |
142 | .mmc[1] = { | |
143 | .enabled = 0, | |
144 | .wire4 = 0, | |
145 | .wp_pin = -1, | |
146 | .power_pin = -1, | |
147 | .switch_pin = -1, | |
148 | }, | |
149 | }; | |
150 | ||
151 | static struct omap_board_config_kernel nokia770_config[] = { | |
152 | { OMAP_TAG_USB, NULL }, | |
153 | { OMAP_TAG_MMC, &nokia770_mmc_config }, | |
154 | }; | |
155 | ||
156 | /* | |
157 | * audio power control | |
158 | */ | |
159 | #define HEADPHONE_GPIO 14 | |
160 | #define AMPLIFIER_CTRL_GPIO 58 | |
161 | ||
162 | static struct clk *dspxor_ck; | |
163 | static DECLARE_MUTEX(audio_pwr_sem); | |
164 | /* | |
165 | * audio_pwr_state | |
166 | * +--+-------------------------+---------------------------------------+ | |
167 | * |-1|down |power-up request -> 0 | | |
168 | * +--+-------------------------+---------------------------------------+ | |
169 | * | 0|up |power-down(1) request -> 1 | | |
170 | * | | |power-down(2) request -> (ignore) | | |
171 | * +--+-------------------------+---------------------------------------+ | |
172 | * | 1|up, |power-up request -> 0 | | |
173 | * | |received down(1) request |power-down(2) request -> -1 | | |
174 | * +--+-------------------------+---------------------------------------+ | |
175 | */ | |
176 | static int audio_pwr_state = -1; | |
177 | ||
178 | /* | |
179 | * audio_pwr_up / down should be called under audio_pwr_sem | |
180 | */ | |
181 | static void nokia770_audio_pwr_up(void) | |
182 | { | |
183 | clk_enable(dspxor_ck); | |
184 | ||
185 | /* Turn on codec */ | |
186 | tlv320aic23_power_up(); | |
187 | ||
188 | if (omap_get_gpio_datain(HEADPHONE_GPIO)) | |
189 | /* HP not connected, turn on amplifier */ | |
190 | omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1); | |
191 | else | |
192 | /* HP connected, do not turn on amplifier */ | |
193 | printk("HP connected\n"); | |
194 | } | |
195 | ||
6d5aefb8 | 196 | static void codec_delayed_power_down(struct work_struct *work) |
9b6553cd TL |
197 | { |
198 | down(&audio_pwr_sem); | |
199 | if (audio_pwr_state == -1) | |
200 | tlv320aic23_power_down(); | |
201 | clk_disable(dspxor_ck); | |
202 | up(&audio_pwr_sem); | |
203 | } | |
204 | ||
6d5aefb8 | 205 | static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down); |
9b6553cd TL |
206 | |
207 | static void nokia770_audio_pwr_down(void) | |
208 | { | |
209 | /* Turn off amplifier */ | |
210 | omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0); | |
211 | ||
212 | /* Turn off codec: schedule delayed work */ | |
213 | schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */ | |
214 | } | |
215 | ||
216 | void nokia770_audio_pwr_up_request(int stage) | |
217 | { | |
218 | down(&audio_pwr_sem); | |
219 | if (audio_pwr_state == -1) | |
220 | nokia770_audio_pwr_up(); | |
221 | /* force audio_pwr_state = 0, even if it was 1. */ | |
222 | audio_pwr_state = 0; | |
223 | up(&audio_pwr_sem); | |
224 | } | |
225 | ||
226 | void nokia770_audio_pwr_down_request(int stage) | |
227 | { | |
228 | down(&audio_pwr_sem); | |
229 | switch (stage) { | |
230 | case 1: | |
231 | if (audio_pwr_state == 0) | |
232 | audio_pwr_state = 1; | |
233 | break; | |
234 | case 2: | |
235 | if (audio_pwr_state == 1) { | |
236 | nokia770_audio_pwr_down(); | |
237 | audio_pwr_state = -1; | |
238 | } | |
239 | break; | |
240 | } | |
241 | up(&audio_pwr_sem); | |
242 | } | |
243 | ||
244 | static void __init omap_nokia770_init(void) | |
245 | { | |
246 | nokia770_config[0].data = &nokia770_usb_config; | |
247 | ||
248 | platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices)); | |
249 | spi_register_board_info(nokia770_spi_board_info, | |
250 | ARRAY_SIZE(nokia770_spi_board_info)); | |
251 | omap_board_config = nokia770_config; | |
252 | omap_board_config_size = ARRAY_SIZE(nokia770_config); | |
253 | omap_serial_init(); | |
254 | omap_dsp_audio_pwr_up_request = nokia770_audio_pwr_up_request; | |
255 | omap_dsp_audio_pwr_down_request = nokia770_audio_pwr_down_request; | |
256 | dspxor_ck = clk_get(0, "dspxor_ck"); | |
257 | } | |
258 | ||
259 | static void __init omap_nokia770_map_io(void) | |
260 | { | |
261 | omap1_map_common_io(); | |
262 | } | |
263 | ||
264 | MACHINE_START(NOKIA770, "Nokia 770") | |
265 | .phys_io = 0xfff00000, | |
266 | .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc, | |
267 | .boot_params = 0x10000100, | |
268 | .map_io = omap_nokia770_map_io, | |
269 | .init_irq = omap_nokia770_init_irq, | |
270 | .init_machine = omap_nokia770_init, | |
271 | .timer = &omap_timer, | |
272 | MACHINE_END |