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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> | |
19 | ||
20 | #include <asm/hardware.h> | |
21 | #include <asm/mach-types.h> | |
22 | #include <asm/mach/arch.h> | |
23 | #include <asm/mach/map.h> | |
24 | ||
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> | |
34 | ||
35 | static void __init omap_nokia770_init_irq(void) | |
36 | { | |
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 */ | |
40 | ||
41 | /* SleepX mask direction */ | |
42 | omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008); | |
43 | /* Unmask SleepX signal */ | |
44 | omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004); | |
45 | ||
46 | omap1_init_common_hw(); | |
47 | omap_init_irq(); | |
48 | } | |
49 | ||
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), | |
62 | 0 | |
63 | }; | |
64 | ||
65 | static struct resource nokia770_kp_resources[] = { | |
66 | [0] = { | |
67 | .start = INT_KEYBOARD, | |
68 | .end = INT_KEYBOARD, | |
69 | .flags = IORESOURCE_IRQ, | |
70 | }, | |
71 | }; | |
72 | ||
73 | static struct omap_kp_platform_data nokia770_kp_data = { | |
74 | .rows = 8, | |
75 | .cols = 8, | |
76 | .keymap = nokia770_keymap | |
77 | }; | |
78 | ||
79 | static struct platform_device nokia770_kp_device = { | |
80 | .name = "omap-keypad", | |
81 | .id = -1, | |
82 | .dev = { | |
83 | .platform_data = &nokia770_kp_data, | |
84 | }, | |
85 | .num_resources = ARRAY_SIZE(nokia770_kp_resources), | |
86 | .resource = nokia770_kp_resources, | |
87 | }; | |
88 | ||
89 | static struct platform_device *nokia770_devices[] __initdata = { | |
90 | &nokia770_kp_device, | |
91 | }; | |
92 | ||
93 | static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = { | |
94 | .x_max = 0x0fff, | |
95 | .y_max = 0x0fff, | |
96 | .x_plate_ohms = 180, | |
97 | .pressure_max = 255, | |
98 | .debounce_max = 10, | |
99 | .debounce_tol = 3, | |
100 | }; | |
101 | ||
102 | static struct spi_board_info nokia770_spi_board_info[] __initdata = { | |
103 | [0] = { | |
104 | .modalias = "lcd_lph8923", | |
105 | .bus_num = 2, | |
106 | .chip_select = 3, | |
107 | .max_speed_hz = 12000000, | |
108 | }, | |
109 | [1] = { | |
110 | .modalias = "ads7846", | |
111 | .bus_num = 2, | |
112 | .chip_select = 0, | |
113 | .max_speed_hz = 2500000, | |
114 | .irq = OMAP_GPIO_IRQ(15), | |
115 | .platform_data = &nokia770_ads7846_platform_data, | |
116 | }, | |
117 | }; | |
118 | ||
119 | ||
120 | /* assume no Mini-AB port */ | |
121 | ||
122 | static struct omap_usb_config nokia770_usb_config __initdata = { | |
123 | .otg = 1, | |
124 | .register_host = 1, | |
125 | .register_dev = 1, | |
126 | .hmc_mode = 16, | |
127 | .pins[0] = 6, | |
128 | }; | |
129 | ||
130 | static struct omap_mmc_config nokia770_mmc_config __initdata = { | |
131 | .mmc[0] = { | |
132 | .enabled = 0, | |
133 | .wire4 = 0, | |
134 | .wp_pin = -1, | |
135 | .power_pin = -1, | |
136 | .switch_pin = -1, | |
137 | }, | |
138 | .mmc[1] = { | |
139 | .enabled = 0, | |
140 | .wire4 = 0, | |
141 | .wp_pin = -1, | |
142 | .power_pin = -1, | |
143 | .switch_pin = -1, | |
144 | }, | |
145 | }; | |
146 | ||
147 | static struct omap_board_config_kernel nokia770_config[] = { | |
148 | { OMAP_TAG_USB, NULL }, | |
149 | { OMAP_TAG_MMC, &nokia770_mmc_config }, | |
150 | }; | |
151 | ||
152 | /* | |
153 | * audio power control | |
154 | */ | |
155 | #define HEADPHONE_GPIO 14 | |
156 | #define AMPLIFIER_CTRL_GPIO 58 | |
157 | ||
158 | static struct clk *dspxor_ck; | |
159 | static DECLARE_MUTEX(audio_pwr_sem); | |
160 | /* | |
161 | * audio_pwr_state | |
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 | * +--+-------------------------+---------------------------------------+ | |
171 | */ | |
172 | static int audio_pwr_state = -1; | |
173 | ||
174 | /* | |
175 | * audio_pwr_up / down should be called under audio_pwr_sem | |
176 | */ | |
177 | static void nokia770_audio_pwr_up(void) | |
178 | { | |
179 | clk_enable(dspxor_ck); | |
180 | ||
181 | /* Turn on codec */ | |
182 | tlv320aic23_power_up(); | |
183 | ||
184 | if (omap_get_gpio_datain(HEADPHONE_GPIO)) | |
185 | /* HP not connected, turn on amplifier */ | |
186 | omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1); | |
187 | else | |
188 | /* HP connected, do not turn on amplifier */ | |
189 | printk("HP connected\n"); | |
190 | } | |
191 | ||
192 | static void codec_delayed_power_down(void *arg) | |
193 | { | |
194 | down(&audio_pwr_sem); | |
195 | if (audio_pwr_state == -1) | |
196 | tlv320aic23_power_down(); | |
197 | clk_disable(dspxor_ck); | |
198 | up(&audio_pwr_sem); | |
199 | } | |
200 | ||
201 | static DECLARE_WORK(codec_power_down_work, codec_delayed_power_down, NULL); | |
202 | ||
203 | static void nokia770_audio_pwr_down(void) | |
204 | { | |
205 | /* Turn off amplifier */ | |
206 | omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0); | |
207 | ||
208 | /* Turn off codec: schedule delayed work */ | |
209 | schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */ | |
210 | } | |
211 | ||
212 | void nokia770_audio_pwr_up_request(int stage) | |
213 | { | |
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. */ | |
218 | audio_pwr_state = 0; | |
219 | up(&audio_pwr_sem); | |
220 | } | |
221 | ||
222 | void nokia770_audio_pwr_down_request(int stage) | |
223 | { | |
224 | down(&audio_pwr_sem); | |
225 | switch (stage) { | |
226 | case 1: | |
227 | if (audio_pwr_state == 0) | |
228 | audio_pwr_state = 1; | |
229 | break; | |
230 | case 2: | |
231 | if (audio_pwr_state == 1) { | |
232 | nokia770_audio_pwr_down(); | |
233 | audio_pwr_state = -1; | |
234 | } | |
235 | break; | |
236 | } | |
237 | up(&audio_pwr_sem); | |
238 | } | |
239 | ||
240 | static void __init omap_nokia770_init(void) | |
241 | { | |
242 | nokia770_config[0].data = &nokia770_usb_config; | |
243 | ||
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); | |
249 | omap_serial_init(); | |
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"); | |
253 | } | |
254 | ||
255 | static void __init omap_nokia770_map_io(void) | |
256 | { | |
257 | omap1_map_common_io(); | |
258 | } | |
259 | ||
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, | |
268 | MACHINE_END |