Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
[linux-2.6] / 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/mutex.h>
14 #include <linux/platform_device.h>
15 #include <linux/input.h>
16 #include <linux/clk.h>
17
18 #include <linux/spi/spi.h>
19 #include <linux/spi/ads7846.h>
20 #include <linux/workqueue.h>
21 #include <linux/delay.h>
22
23 #include <mach/hardware.h>
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
27
28 #include <mach/gpio.h>
29 #include <mach/mux.h>
30 #include <mach/usb.h>
31 #include <mach/board.h>
32 #include <mach/keypad.h>
33 #include <mach/common.h>
34 #include <mach/dsp_common.h>
35 #include <mach/omapfb.h>
36 #include <mach/hwa742.h>
37 #include <mach/lcd_mipid.h>
38 #include <mach/mmc.h>
39 #include <mach/clock.h>
40
41 #define ADS7846_PENDOWN_GPIO    15
42
43 static void __init omap_nokia770_init_irq(void)
44 {
45         /* On Nokia 770, the SleepX signal is masked with an
46          * MPUIO line by default.  It has to be unmasked for it
47          * to become functional */
48
49         /* SleepX mask direction */
50         omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
51         /* Unmask SleepX signal */
52         omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
53
54         omap1_init_common_hw();
55         omap_init_irq();
56 }
57
58 static int nokia770_keymap[] = {
59         KEY(0, 1, GROUP_0 | KEY_UP),
60         KEY(0, 2, GROUP_1 | KEY_F5),
61         KEY(1, 0, GROUP_0 | KEY_LEFT),
62         KEY(1, 1, GROUP_0 | KEY_ENTER),
63         KEY(1, 2, GROUP_0 | KEY_RIGHT),
64         KEY(2, 0, GROUP_1 | KEY_ESC),
65         KEY(2, 1, GROUP_0 | KEY_DOWN),
66         KEY(2, 2, GROUP_1 | KEY_F4),
67         KEY(3, 0, GROUP_2 | KEY_F7),
68         KEY(3, 1, GROUP_2 | KEY_F8),
69         KEY(3, 2, GROUP_2 | KEY_F6),
70         0
71 };
72
73 static struct resource nokia770_kp_resources[] = {
74         [0] = {
75                 .start  = INT_KEYBOARD,
76                 .end    = INT_KEYBOARD,
77                 .flags  = IORESOURCE_IRQ,
78         },
79 };
80
81 static struct omap_kp_platform_data nokia770_kp_data = {
82         .rows           = 8,
83         .cols           = 8,
84         .keymap         = nokia770_keymap,
85         .keymapsize     = ARRAY_SIZE(nokia770_keymap),
86         .delay          = 4,
87 };
88
89 static struct platform_device nokia770_kp_device = {
90         .name           = "omap-keypad",
91         .id             = -1,
92         .dev            = {
93                 .platform_data = &nokia770_kp_data,
94         },
95         .num_resources  = ARRAY_SIZE(nokia770_kp_resources),
96         .resource       = nokia770_kp_resources,
97 };
98
99 static struct platform_device *nokia770_devices[] __initdata = {
100         &nokia770_kp_device,
101 };
102
103 static void mipid_shutdown(struct mipid_platform_data *pdata)
104 {
105         if (pdata->nreset_gpio != -1) {
106                 printk(KERN_INFO "shutdown LCD\n");
107                 gpio_set_value(pdata->nreset_gpio, 0);
108                 msleep(120);
109         }
110 }
111
112 static struct mipid_platform_data nokia770_mipid_platform_data = {
113         .shutdown = mipid_shutdown,
114 };
115
116 static void mipid_dev_init(void)
117 {
118         const struct omap_lcd_config *conf;
119
120         conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
121         if (conf != NULL) {
122                 nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
123                 nokia770_mipid_platform_data.data_lines = conf->data_lines;
124         }
125 }
126
127 static void ads7846_dev_init(void)
128 {
129         if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
130                 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
131 }
132
133 static int ads7846_get_pendown_state(void)
134 {
135         return !gpio_get_value(ADS7846_PENDOWN_GPIO);
136 }
137
138 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
139         .x_max          = 0x0fff,
140         .y_max          = 0x0fff,
141         .x_plate_ohms   = 180,
142         .pressure_max   = 255,
143         .debounce_max   = 10,
144         .debounce_tol   = 3,
145         .debounce_rep   = 1,
146         .get_pendown_state      = ads7846_get_pendown_state,
147 };
148
149 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
150         [0] = {
151                 .modalias       = "lcd_mipid",
152                 .bus_num        = 2,
153                 .chip_select    = 3,
154                 .max_speed_hz   = 12000000,
155                 .platform_data  = &nokia770_mipid_platform_data,
156         },
157         [1] = {
158                 .modalias       = "ads7846",
159                 .bus_num        = 2,
160                 .chip_select    = 0,
161                 .max_speed_hz   = 2500000,
162                 .irq            = OMAP_GPIO_IRQ(15),
163                 .platform_data  = &nokia770_ads7846_platform_data,
164         },
165 };
166
167 static struct hwa742_platform_data nokia770_hwa742_platform_data = {
168         .te_connected           = 1,
169 };
170
171 static void hwa742_dev_init(void)
172 {
173         clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
174         omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
175 }
176
177 /* assume no Mini-AB port */
178
179 static struct omap_usb_config nokia770_usb_config __initdata = {
180         .otg            = 1,
181         .register_host  = 1,
182         .register_dev   = 1,
183         .hmc_mode       = 16,
184         .pins[0]        = 6,
185 };
186
187 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
188
189 #define NOKIA770_GPIO_MMC_POWER         41
190 #define NOKIA770_GPIO_MMC_SWITCH        23
191
192 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
193                                 int vdd)
194 {
195         gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
196         return 0;
197 }
198
199 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
200 {
201         return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
202 }
203
204 static struct omap_mmc_platform_data nokia770_mmc2_data = {
205         .nr_slots                       = 1,
206         .dma_mask                       = 0xffffffff,
207         .max_freq                       = 12000000,
208         .slots[0]       = {
209                 .set_power              = nokia770_mmc_set_power,
210                 .get_cover_state        = nokia770_mmc_get_cover_state,
211                 .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
212                 .name                   = "mmcblk",
213         },
214 };
215
216 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
217
218 static void __init nokia770_mmc_init(void)
219 {
220         int ret;
221
222         ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
223         if (ret < 0)
224                 return;
225         gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
226
227         ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
228         if (ret < 0) {
229                 gpio_free(NOKIA770_GPIO_MMC_POWER);
230                 return;
231         }
232         gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
233
234         /* Only the second MMC controller is used */
235         nokia770_mmc_data[1] = &nokia770_mmc2_data;
236         omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
237 }
238
239 #else
240 static inline void nokia770_mmc_init(void)
241 {
242 }
243 #endif
244
245 #if     defined(CONFIG_OMAP_DSP)
246 /*
247  * audio power control
248  */
249 #define HEADPHONE_GPIO          14
250 #define AMPLIFIER_CTRL_GPIO     58
251
252 static struct clk *dspxor_ck;
253 static DEFINE_MUTEX(audio_pwr_lock);
254 /*
255  * audio_pwr_state
256  * +--+-------------------------+---------------------------------------+
257  * |-1|down                     |power-up request -> 0                  |
258  * +--+-------------------------+---------------------------------------+
259  * | 0|up                       |power-down(1) request -> 1             |
260  * |  |                         |power-down(2) request -> (ignore)      |
261  * +--+-------------------------+---------------------------------------+
262  * | 1|up,                      |power-up request -> 0                  |
263  * |  |received down(1) request |power-down(2) request -> -1            |
264  * +--+-------------------------+---------------------------------------+
265  */
266 static int audio_pwr_state = -1;
267
268 static inline void aic23_power_up(void)
269 {
270 }
271 static inline void aic23_power_down(void)
272 {
273 }
274
275 /*
276  * audio_pwr_up / down should be called under audio_pwr_lock
277  */
278 static void nokia770_audio_pwr_up(void)
279 {
280         clk_enable(dspxor_ck);
281
282         /* Turn on codec */
283         aic23_power_up();
284
285         if (gpio_get_value(HEADPHONE_GPIO))
286                 /* HP not connected, turn on amplifier */
287                 gpio_set_value(AMPLIFIER_CTRL_GPIO, 1);
288         else
289                 /* HP connected, do not turn on amplifier */
290                 printk("HP connected\n");
291 }
292
293 static void codec_delayed_power_down(struct work_struct *work)
294 {
295         mutex_lock(&audio_pwr_lock);
296         if (audio_pwr_state == -1)
297                 aic23_power_down();
298         clk_disable(dspxor_ck);
299         mutex_unlock(&audio_pwr_lock);
300 }
301
302 static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);
303
304 static void nokia770_audio_pwr_down(void)
305 {
306         /* Turn off amplifier */
307         gpio_set_value(AMPLIFIER_CTRL_GPIO, 0);
308
309         /* Turn off codec: schedule delayed work */
310         schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
311 }
312
313 static int
314 nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
315 {
316         mutex_lock(&audio_pwr_lock);
317         if (audio_pwr_state == -1)
318                 nokia770_audio_pwr_up();
319         /* force audio_pwr_state = 0, even if it was 1. */
320         audio_pwr_state = 0;
321         mutex_unlock(&audio_pwr_lock);
322         return 0;
323 }
324
325 static int
326 nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
327 {
328         mutex_lock(&audio_pwr_lock);
329         switch (stage) {
330         case 1:
331                 if (audio_pwr_state == 0)
332                         audio_pwr_state = 1;
333                 break;
334         case 2:
335                 if (audio_pwr_state == 1) {
336                         nokia770_audio_pwr_down();
337                         audio_pwr_state = -1;
338                 }
339                 break;
340         }
341         mutex_unlock(&audio_pwr_lock);
342         return 0;
343 }
344
345 static struct dsp_kfunc_device nokia770_audio_device = {
346         .name    = "audio",
347         .type    = DSP_KFUNC_DEV_TYPE_AUDIO,
348         .enable  = nokia770_audio_pwr_up_request,
349         .disable = nokia770_audio_pwr_down_request,
350 };
351
352 static __init int omap_dsp_init(void)
353 {
354         int ret;
355
356         dspxor_ck = clk_get(0, "dspxor_ck");
357         if (IS_ERR(dspxor_ck)) {
358                 printk(KERN_ERR "couldn't acquire dspxor_ck\n");
359                 return PTR_ERR(dspxor_ck);
360         }
361
362         ret = dsp_kfunc_device_register(&nokia770_audio_device);
363         if (ret) {
364                 printk(KERN_ERR
365                        "KFUNC device registration faild: %s\n",
366                        nokia770_audio_device.name);
367                 goto out;
368         }
369         return 0;
370  out:
371         return ret;
372 }
373 #else
374 #define omap_dsp_init()         do {} while (0)
375 #endif  /* CONFIG_OMAP_DSP */
376
377 static void __init omap_nokia770_init(void)
378 {
379         platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
380         spi_register_board_info(nokia770_spi_board_info,
381                                 ARRAY_SIZE(nokia770_spi_board_info));
382         omap_gpio_init();
383         omap_serial_init();
384         omap_register_i2c_bus(1, 100, NULL, 0);
385         omap_dsp_init();
386         hwa742_dev_init();
387         ads7846_dev_init();
388         mipid_dev_init();
389         omap_usb_init(&nokia770_usb_config);
390         nokia770_mmc_init();
391 }
392
393 static void __init omap_nokia770_map_io(void)
394 {
395         omap1_map_common_io();
396 }
397
398 MACHINE_START(NOKIA770, "Nokia 770")
399         .phys_io        = 0xfff00000,
400         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
401         .boot_params    = 0x10000100,
402         .map_io         = omap_nokia770_map_io,
403         .init_irq       = omap_nokia770_init_irq,
404         .init_machine   = omap_nokia770_init,
405         .timer          = &omap_timer,
406 MACHINE_END