Merge current mainline tree into linux-omap tree
[pandora-kernel.git] / arch / arm / mach-omap1 / board-nokia770.c
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 #include <linux/workqueue.h>
20 #include <linux/delay.h>
21 #include <linux/mutex.h>
22
23 #include <asm/hardware.h>
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
27
28 #include <asm/arch/gpio.h>
29 #include <asm/arch/mux.h>
30 #include <asm/arch/usb.h>
31 #include <asm/arch/board.h>
32 #include <asm/arch/keypad.h>
33 #include <asm/arch/common.h>
34 #include <asm/arch/dsp_common.h>
35 #include <asm/arch/aic23.h>
36 #include <asm/arch/omapfb.h>
37 #include <asm/arch/hwa742.h>
38 #include <asm/arch/lcd_mipid.h>
39
40 #define ADS7846_PENDOWN_GPIO    15
41
42 static void __init omap_nokia770_init_irq(void)
43 {
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 */
47
48         /* SleepX mask direction */
49         omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
50         /* Unmask SleepX signal */
51         omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
52
53         omap1_init_common_hw();
54         omap_init_irq();
55 }
56
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),
69         0
70 };
71
72 static struct resource nokia770_kp_resources[] = {
73         [0] = {
74                 .start  = INT_KEYBOARD,
75                 .end    = INT_KEYBOARD,
76                 .flags  = IORESOURCE_IRQ,
77         },
78 };
79
80 static struct omap_kp_platform_data nokia770_kp_data = {
81         .rows           = 8,
82         .cols           = 8,
83         .keymap         = nokia770_keymap,
84         .keymapsize     = ARRAY_SIZE(nokia770_keymap),
85         .delay          = 4,
86 };
87
88 static struct platform_device nokia770_kp_device = {
89         .name           = "omap-keypad",
90         .id             = -1,
91         .dev            = {
92                 .platform_data = &nokia770_kp_data,
93         },
94         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
95         .resource       = nokia770_kp_resources,
96 };
97
98 static struct platform_device *nokia770_devices[] __initdata = {
99         &nokia770_kp_device,
100 };
101
102 static void mipid_shutdown(struct mipid_platform_data *pdata)
103 {
104         if (pdata->nreset_gpio != -1) {
105                 printk(KERN_INFO "shutdown LCD\n");
106                 omap_set_gpio_dataout(pdata->nreset_gpio, 0);
107                 msleep(120);
108         }
109 }
110
111 static struct mipid_platform_data nokia770_mipid_platform_data = {
112         .shutdown = mipid_shutdown,
113 };
114
115 static void mipid_dev_init(void)
116 {
117         const struct omap_lcd_config *conf;
118
119         conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
120         if (conf != NULL) {
121                 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
122                 nokia770_mipid_platform_data.data_lines = conf->data_lines;
123         }
124 }
125
126 static void ads7846_dev_init(void)
127 {
128         if (omap_request_gpio(ADS7846_PENDOWN_GPIO) < 0)
129                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
130 }
131
132 static int ads7846_get_pendown_state(void)
133 {
134         return !omap_get_gpio_datain(ADS7846_PENDOWN_GPIO);
135 }
136
137 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
138         .x_max          = 0x0fff,
139         .y_max          = 0x0fff,
140         .x_plate_ohms   = 180,
141         .pressure_max   = 255,
142         .debounce_max   = 10,
143         .debounce_tol   = 3,
144         .debounce_rep   = 1,
145         .get_pendown_state      = ads7846_get_pendown_state,
146 };
147
148 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
149         [0] = {
150                 .modalias       = "lcd_mipid",
151                 .bus_num        = 2,
152                 .chip_select    = 3,
153                 .max_speed_hz   = 12000000,
154                 .platform_data  = &nokia770_mipid_platform_data,
155         },
156         [1] = {
157                 .modalias       = "ads7846",
158                 .bus_num        = 2,
159                 .chip_select    = 0,
160                 .max_speed_hz   = 2500000,
161                 .irq            = OMAP_GPIO_IRQ(15),
162                 .platform_data  = &nokia770_ads7846_platform_data,
163         },
164 };
165
166 static struct {
167         struct clk *sys_ck;
168 } hwa742;
169
170 static int hwa742_get_clocks(void)
171 {
172         hwa742.sys_ck = clk_get(NULL, "bclk");
173         if (IS_ERR(hwa742.sys_ck)) {
174                 printk(KERN_ERR "can't get HWA742 clock\n");
175                 return PTR_ERR(hwa742.sys_ck);
176         }
177         return 0;
178 }
179
180 static unsigned long hwa742_get_clock_rate(struct device *dev)
181 {
182         return clk_get_rate(hwa742.sys_ck);
183 }
184
185 static void hwa742_power_up(struct device *dev)
186 {
187         clk_enable(hwa742.sys_ck);
188 }
189
190 static void hwa742_power_down(struct device *dev)
191 {
192         clk_disable(hwa742.sys_ck);
193 }
194
195 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
196         .get_clock_rate = hwa742_get_clock_rate,
197         .power_up       = hwa742_power_up,
198         .power_down     = hwa742_power_down,
199         .te_connected   = 1,
200 };
201
202 static void hwa742_dev_init(void)
203 {
204         hwa742_get_clocks();
205         omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
206 }
207
208 /* assume no Mini-AB port */
209
210 static struct omap_usb_config nokia770_usb_config __initdata = {
211         .otg            = 1,
212         .register_host  = 1,
213         .register_dev   = 1,
214         .hmc_mode       = 16,
215         .pins[0]        = 6,
216 };
217
218 static struct omap_mmc_config nokia770_mmc_config __initdata = {
219         .mmc[0] = {
220                 .enabled        = 0,
221                 .wire4          = 0,
222                 .wp_pin         = -1,
223                 .power_pin      = -1,
224                 .switch_pin     = -1,
225         },
226         .mmc[1] = {
227                 .enabled        = 0,
228                 .wire4          = 0,
229                 .wp_pin         = -1,
230                 .power_pin      = -1,
231                 .switch_pin     = -1,
232         },
233 };
234
235 static struct omap_board_config_kernel nokia770_config[] __initdata = {
236         { OMAP_TAG_USB,         NULL },
237         { OMAP_TAG_MMC,         &nokia770_mmc_config },
238 };
239
240 #if     defined(CONFIG_OMAP_DSP)
241 /*
242  * audio power control
243  */
244 #define HEADPHONE_GPIO          14
245 #define AMPLIFIER_CTRL_GPIO     58
246
247 static struct clk *dspxor_ck;
248 static DEFINE_MUTEX(audio_pwr_mutex);
249 /*
250  * audio_pwr_state
251  * +--+-------------------------+---------------------------------------+
252  * |-1|down                     |power-up request -> 0                  |
253  * +--+-------------------------+---------------------------------------+
254  * | 0|up                       |power-down(1) request -> 1             |
255  * |  |                         |power-down(2) request -> (ignore)      |
256  * +--+-------------------------+---------------------------------------+
257  * | 1|up,                      |power-up request -> 0                  |
258  * |  |received down(1) request |power-down(2) request -> -1            |
259  * +--+-------------------------+---------------------------------------+
260  */
261 static int audio_pwr_state = -1;
262
263 /*
264  * audio_pwr_up / down should be called under audio_pwr_mutex
265  */
266 static void nokia770_audio_pwr_up(void)
267 {
268         clk_enable(dspxor_ck);
269
270         /* Turn on codec */
271         aic23_power_up();
272
273         if (omap_get_gpio_datain(HEADPHONE_GPIO))
274                 /* HP not connected, turn on amplifier */
275                 omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1);
276         else
277                 /* HP connected, do not turn on amplifier */
278                 printk("HP connected\n");
279 }
280
281 static void codec_delayed_power_down(struct work_struct *work)
282 {
283         mutex_lock(&audio_pwr_mutex);
284         if (audio_pwr_state == -1)
285                 aic23_power_down();
286         clk_disable(dspxor_ck);
287         mutex_unlock(&audio_pwr_mutex);
288 }
289
290 static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
291
292 static void nokia770_audio_pwr_down(void)
293 {
294         /* Turn off amplifier */
295         omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0);
296
297         /* Turn off codec: schedule delayed work */
298         schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
299 }
300
301 static int
302 nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
303 {
304         mutex_lock(&audio_pwr_mutex);
305         if (audio_pwr_state == -1)
306                 nokia770_audio_pwr_up();
307         /* force audio_pwr_state = 0, even if it was 1. */
308         audio_pwr_state = 0;
309         mutex_unlock(&audio_pwr_mutex);
310         return 0;
311 }
312
313 static int
314 nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
315 {
316         mutex_lock(&audio_pwr_mutex);
317         switch (stage) {
318         case 1:
319                 if (audio_pwr_state == 0)
320                         audio_pwr_state = 1;
321                 break;
322         case 2:
323                 if (audio_pwr_state == 1) {
324                         nokia770_audio_pwr_down();
325                         audio_pwr_state = -1;
326                 }
327                 break;
328         }
329         mutex_unlock(&audio_pwr_mutex);
330         return 0;
331 }
332
333 static struct dsp_kfunc_device nokia770_audio_device = {
334         .name    = "audio",
335         .type    = DSP_KFUNC_DEV_TYPE_AUDIO,
336         .enable  = nokia770_audio_pwr_up_request,
337         .disable = nokia770_audio_pwr_down_request,
338 };
339
340 static __init int omap_dsp_init(void)
341 {
342         int ret;
343
344         dspxor_ck = clk_get(0, "dspxor_ck");
345         if (IS_ERR(dspxor_ck)) {
346                 printk(KERN_ERR "couldn't acquire dspxor_ck\n");
347                 return PTR_ERR(dspxor_ck);
348         }
349
350         ret = dsp_kfunc_device_register(&nokia770_audio_device);
351         if (ret) {
352                 printk(KERN_ERR
353                        "KFUNC device registration faild: %s\n",
354                        nokia770_audio_device.name);
355                 goto out;
356         }
357         return 0;
358  out:
359         return ret;
360 }
361 #else
362 #define omap_dsp_init()         do {} while (0)
363 #endif  /* CONFIG_OMAP_DSP */
364
365 static void __init omap_nokia770_init(void)
366 {
367         nokia770_config[0].data = &nokia770_usb_config;
368
369         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
370         spi_register_board_info(nokia770_spi_board_info,
371                                 ARRAY_SIZE(nokia770_spi_board_info));
372         omap_board_config = nokia770_config;
373         omap_board_config_size = ARRAY_SIZE(nokia770_config);
374         omap_gpio_init();
375         omap_serial_init();
376         omap_register_i2c_bus(1, 100, NULL, 0);
377         omap_dsp_init();
378         hwa742_dev_init();
379         ads7846_dev_init();
380         mipid_dev_init();
381 }
382
383 static void __init omap_nokia770_map_io(void)
384 {
385         omap1_map_common_io();
386 }
387
388 MACHINE_START(NOKIA770, "Nokia 770")
389         .phys_io        = 0xfff00000,
390         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
391         .boot_params    = 0x10000100,
392         .map_io         = omap_nokia770_map_io,
393         .init_irq       = omap_nokia770_init_irq,
394         .init_machine   = omap_nokia770_init,
395         .timer          = &omap_timer,
396 MACHINE_END