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hx4700.c
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1 /*
2  * Support for HP iPAQ hx4700 PDAs.
3  *
4  * Copyright (c) 2008-2009 Philipp Zabel
5  *
6  * Based on code:
7  * Copyright (c) 2004 Hewlett-Packard Company.
8  * Copyright (c) 2005 SDG Systems, LLC
9  * Copyright (c) 2006 Anton Vorontsov <[email protected]>
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License version 2 as
13  * published by the Free Software Foundation.
14  *
15  */
16 
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/platform_device.h>
20 #include <linux/delay.h>
21 #include <linux/fb.h>
22 #include <linux/gpio.h>
23 #include <linux/gpio_keys.h>
24 #include <linux/input.h>
25 #include <linux/input/navpoint.h>
26 #include <linux/lcd.h>
27 #include <linux/mfd/htc-egpio.h>
28 #include <linux/mfd/asic3.h>
29 #include <linux/mtd/physmap.h>
30 #include <linux/pda_power.h>
31 #include <linux/pwm.h>
32 #include <linux/pwm_backlight.h>
33 #include <linux/regulator/driver.h>
34 #include <linux/regulator/gpio-regulator.h>
35 #include <linux/regulator/machine.h>
36 #include <linux/regulator/max1586.h>
37 #include <linux/spi/ads7846.h>
38 #include <linux/spi/spi.h>
39 #include <linux/spi/pxa2xx_spi.h>
40 #include <linux/usb/gpio_vbus.h>
41 #include <linux/i2c/pxa-i2c.h>
42 
43 #include <mach/hardware.h>
44 #include <asm/mach-types.h>
45 #include <asm/mach/arch.h>
46 
47 #include <mach/pxa27x.h>
48 #include <mach/hx4700.h>
49 #include <linux/platform_data/irda-pxaficp.h>
50 
51 #include <sound/ak4641.h>
52 #include <video/platform_lcd.h>
53 #include <video/w100fb.h>
54 
55 #include "devices.h"
56 #include "generic.h"
57 
58 /* Physical address space information */
59 
60 #define ATI_W3220_PHYS PXA_CS2_PHYS /* ATI Imageon 3220 Graphics */
61 #define ASIC3_PHYS PXA_CS3_PHYS
62 #define ASIC3_SD_PHYS (PXA_CS3_PHYS + 0x02000000)
63 
64 static unsigned long hx4700_pin_config[] __initdata = {
65 
66  /* SDRAM and Static Memory I/O Signals */
67  GPIO20_nSDCS_2,
68  GPIO21_nSDCS_3,
69  GPIO15_nCS_1,
70  GPIO78_nCS_2, /* W3220 */
71  GPIO79_nCS_3, /* ASIC3 */
72  GPIO80_nCS_4,
73  GPIO33_nCS_5, /* EGPIO, WLAN */
74 
75  /* PC CARD */
76  GPIO48_nPOE,
77  GPIO49_nPWE,
78  GPIO50_nPIOR,
79  GPIO51_nPIOW,
80  GPIO54_nPCE_2,
81  GPIO55_nPREG,
82  GPIO56_nPWAIT,
83  GPIO57_nIOIS16,
84  GPIO85_nPCE_1,
85  GPIO104_PSKTSEL,
86 
87  /* I2C */
88  GPIO117_I2C_SCL,
89  GPIO118_I2C_SDA,
90 
91  /* FFUART (RS-232) */
92  GPIO34_FFUART_RXD,
93  GPIO35_FFUART_CTS,
94  GPIO36_FFUART_DCD,
95  GPIO37_FFUART_DSR,
96  GPIO38_FFUART_RI,
97  GPIO39_FFUART_TXD,
98  GPIO40_FFUART_DTR,
99  GPIO41_FFUART_RTS,
100 
101  /* BTUART */
102  GPIO42_BTUART_RXD,
103  GPIO43_BTUART_TXD_LPM_LOW,
104  GPIO44_BTUART_CTS,
105  GPIO45_BTUART_RTS_LPM_LOW,
106 
107  /* STUART (IRDA) */
108  GPIO46_STUART_RXD,
109  GPIO47_STUART_TXD,
110 
111  /* PWM 1 (Backlight) */
112  GPIO17_PWM1_OUT,
113 
114  /* I2S */
115  GPIO28_I2S_BITCLK_OUT,
116  GPIO29_I2S_SDATA_IN,
117  GPIO30_I2S_SDATA_OUT,
118  GPIO31_I2S_SYNC,
119  GPIO113_I2S_SYSCLK,
120 
121  /* SSP 1 (NavPoint) */
122  GPIO23_SSP1_SCLK_IN,
123  GPIO24_SSP1_SFRM,
124  GPIO25_SSP1_TXD,
125  GPIO26_SSP1_RXD,
126 
127  /* SSP 2 (TSC2046) */
128  GPIO19_SSP2_SCLK,
129  GPIO86_SSP2_RXD,
130  GPIO87_SSP2_TXD,
131  GPIO88_GPIO | MFP_LPM_DRIVE_HIGH, /* TSC2046_CS */
132 
133  /* BQ24022 Regulator */
134  GPIO72_GPIO | MFP_LPM_KEEP_OUTPUT, /* BQ24022_nCHARGE_EN */
135  GPIO96_GPIO | MFP_LPM_KEEP_OUTPUT, /* BQ24022_ISET2 */
136 
137  /* HX4700 specific input GPIOs */
138  GPIO12_GPIO | WAKEUP_ON_EDGE_RISE, /* ASIC3_IRQ */
139  GPIO13_GPIO, /* W3220_IRQ */
140  GPIO14_GPIO, /* nWLAN_IRQ */
141 
142  /* HX4700 specific output GPIOs */
143  GPIO61_GPIO | MFP_LPM_DRIVE_HIGH, /* W3220_nRESET */
144  GPIO71_GPIO | MFP_LPM_DRIVE_HIGH, /* ASIC3_nRESET */
145  GPIO81_GPIO | MFP_LPM_DRIVE_HIGH, /* CPU_GP_nRESET */
146  GPIO116_GPIO | MFP_LPM_DRIVE_HIGH, /* CPU_HW_nRESET */
147  GPIO102_GPIO | MFP_LPM_DRIVE_LOW, /* SYNAPTICS_POWER_ON */
148 
149  GPIO10_GPIO, /* GSM_IRQ */
150  GPIO13_GPIO, /* CPLD_IRQ */
151  GPIO107_GPIO, /* DS1WM_IRQ */
152  GPIO108_GPIO, /* GSM_READY */
153  GPIO58_GPIO, /* TSC2046_nPENIRQ */
154  GPIO66_GPIO, /* nSDIO_IRQ */
155 };
156 
157 /*
158  * IRDA
159  */
160 
161 static struct pxaficp_platform_data ficp_info = {
162  .gpio_pwdown = GPIO105_HX4700_nIR_ON,
163  .transceiver_cap = IR_SIRMODE | IR_OFF,
164 };
165 
166 /*
167  * GPIO Keys
168  */
169 
170 #define INIT_KEY(_code, _gpio, _active_low, _desc) \
171  { \
172  .code = KEY_##_code, \
173  .gpio = _gpio, \
174  .active_low = _active_low, \
175  .desc = _desc, \
176  .type = EV_KEY, \
177  .wakeup = 1, \
178  }
179 
180 static struct gpio_keys_button gpio_keys_buttons[] = {
181  INIT_KEY(POWER, GPIO0_HX4700_nKEY_POWER, 1, "Power button"),
182  INIT_KEY(MAIL, GPIO94_HX4700_KEY_MAIL, 0, "Mail button"),
183  INIT_KEY(ADDRESSBOOK, GPIO99_HX4700_KEY_CONTACTS,0, "Contacts button"),
184  INIT_KEY(RECORD, GPIOD6_nKEY_RECORD, 1, "Record button"),
185  INIT_KEY(CALENDAR, GPIOD1_nKEY_CALENDAR, 1, "Calendar button"),
186  INIT_KEY(HOMEPAGE, GPIOD3_nKEY_HOME, 1, "Home button"),
187 };
188 
189 static struct gpio_keys_platform_data gpio_keys_data = {
190  .buttons = gpio_keys_buttons,
191  .nbuttons = ARRAY_SIZE(gpio_keys_buttons),
192 };
193 
194 static struct platform_device gpio_keys = {
195  .name = "gpio-keys",
196  .dev = {
197  .platform_data = &gpio_keys_data,
198  },
199  .id = -1,
200 };
201 
202 /*
203  * Synaptics NavPoint connected to SSP1
204  */
205 
206 static struct navpoint_platform_data navpoint_platform_data = {
207  .port = 1,
208  .gpio = GPIO102_HX4700_SYNAPTICS_POWER_ON,
209 };
210 
211 static struct platform_device navpoint = {
212  .name = "navpoint",
213  .id = -1,
214  .dev = {
215  .platform_data = &navpoint_platform_data,
216  },
217 };
218 
219 /*
220  * ASIC3
221  */
222 
223 static u16 asic3_gpio_config[] = {
224  /* ASIC3 GPIO banks A and B along with some of C and D
225  implement the buffering for the CF slot. */
226  ASIC3_CONFIG_GPIO(0, 1, 1, 0),
227  ASIC3_CONFIG_GPIO(1, 1, 1, 0),
228  ASIC3_CONFIG_GPIO(2, 1, 1, 0),
229  ASIC3_CONFIG_GPIO(3, 1, 1, 0),
230  ASIC3_CONFIG_GPIO(4, 1, 1, 0),
231  ASIC3_CONFIG_GPIO(5, 1, 1, 0),
232  ASIC3_CONFIG_GPIO(6, 1, 1, 0),
233  ASIC3_CONFIG_GPIO(7, 1, 1, 0),
234  ASIC3_CONFIG_GPIO(8, 1, 1, 0),
235  ASIC3_CONFIG_GPIO(9, 1, 1, 0),
236  ASIC3_CONFIG_GPIO(10, 1, 1, 0),
237  ASIC3_CONFIG_GPIO(11, 1, 1, 0),
238  ASIC3_CONFIG_GPIO(12, 1, 1, 0),
239  ASIC3_CONFIG_GPIO(13, 1, 1, 0),
240  ASIC3_CONFIG_GPIO(14, 1, 1, 0),
241  ASIC3_CONFIG_GPIO(15, 1, 1, 0),
242 
243  ASIC3_CONFIG_GPIO(16, 1, 1, 0),
244  ASIC3_CONFIG_GPIO(17, 1, 1, 0),
245  ASIC3_CONFIG_GPIO(18, 1, 1, 0),
246  ASIC3_CONFIG_GPIO(19, 1, 1, 0),
247  ASIC3_CONFIG_GPIO(20, 1, 1, 0),
248  ASIC3_CONFIG_GPIO(21, 1, 1, 0),
249  ASIC3_CONFIG_GPIO(22, 1, 1, 0),
250  ASIC3_CONFIG_GPIO(23, 1, 1, 0),
251  ASIC3_CONFIG_GPIO(24, 1, 1, 0),
252  ASIC3_CONFIG_GPIO(25, 1, 1, 0),
253  ASIC3_CONFIG_GPIO(26, 1, 1, 0),
254  ASIC3_CONFIG_GPIO(27, 1, 1, 0),
255  ASIC3_CONFIG_GPIO(28, 1, 1, 0),
256  ASIC3_CONFIG_GPIO(29, 1, 1, 0),
257  ASIC3_CONFIG_GPIO(30, 1, 1, 0),
258  ASIC3_CONFIG_GPIO(31, 1, 1, 0),
259 
260  /* GPIOC - CF, LEDs, SD */
261  ASIC3_GPIOC0_LED0, /* red */
262  ASIC3_GPIOC1_LED1, /* green */
263  ASIC3_GPIOC2_LED2, /* blue */
264  ASIC3_GPIOC5_nCIOW,
265  ASIC3_GPIOC6_nCIOR,
266  ASIC3_GPIOC7_nPCE_1,
267  ASIC3_GPIOC8_nPCE_2,
268  ASIC3_GPIOC9_nPOE,
269  ASIC3_GPIOC10_nPWE,
270  ASIC3_GPIOC11_PSKTSEL,
271  ASIC3_GPIOC12_nPREG,
272  ASIC3_GPIOC13_nPWAIT,
273  ASIC3_GPIOC14_nPIOIS16,
274  ASIC3_GPIOC15_nPIOR,
275 
276  /* GPIOD: input GPIOs, CF */
277  ASIC3_GPIOD4_CF_nCD,
278  ASIC3_GPIOD11_nCIOIS16,
279  ASIC3_GPIOD12_nCWAIT,
280  ASIC3_GPIOD15_nPIOW,
281 };
282 
283 static struct asic3_led asic3_leds[ASIC3_NUM_LEDS] = {
284  [0] = {
285  .name = "hx4700:amber",
286  .default_trigger = "ds2760-battery.0-charging-blink-full-solid",
287  },
288  [1] = {
289  .name = "hx4700:green",
290  .default_trigger = "unused",
291  },
292  [2] = {
293  .name = "hx4700:blue",
294  .default_trigger = "hx4700-radio",
295  },
296 };
297 
298 static struct resource asic3_resources[] = {
299  /* GPIO part */
300  [0] = DEFINE_RES_MEM(ASIC3_PHYS, ASIC3_MAP_SIZE_16BIT),
301  [1] = DEFINE_RES_IRQ(PXA_GPIO_TO_IRQ(GPIO12_HX4700_ASIC3_IRQ)),
302  /* SD part */
303  [2] = DEFINE_RES_MEM(ASIC3_SD_PHYS, ASIC3_MAP_SIZE_16BIT),
304  [3] = DEFINE_RES_IRQ(PXA_GPIO_TO_IRQ(GPIO66_HX4700_ASIC3_nSDIO_IRQ)),
305 };
306 
307 static struct asic3_platform_data asic3_platform_data = {
308  .gpio_config = asic3_gpio_config,
309  .gpio_config_num = ARRAY_SIZE(asic3_gpio_config),
310  .irq_base = IRQ_BOARD_START,
311  .gpio_base = HX4700_ASIC3_GPIO_BASE,
312  .clock_rate = 4000000,
313  .leds = asic3_leds,
314 };
315 
316 static struct platform_device asic3 = {
317  .name = "asic3",
318  .id = -1,
319  .resource = asic3_resources,
320  .num_resources = ARRAY_SIZE(asic3_resources),
321  .dev = {
322  .platform_data = &asic3_platform_data,
323  },
324 };
325 
326 /*
327  * EGPIO
328  */
329 
330 static struct resource egpio_resources[] = {
331  [0] = DEFINE_RES_MEM(PXA_CS5_PHYS, 0x4),
332 };
333 
334 static struct htc_egpio_chip egpio_chips[] = {
335  [0] = {
336  .reg_start = 0,
337  .gpio_base = HX4700_EGPIO_BASE,
338  .num_gpios = 8,
339  .direction = HTC_EGPIO_OUTPUT,
340  },
341 };
342 
343 static struct htc_egpio_platform_data egpio_info = {
344  .reg_width = 16,
345  .bus_width = 16,
346  .chip = egpio_chips,
347  .num_chips = ARRAY_SIZE(egpio_chips),
348 };
349 
350 static struct platform_device egpio = {
351  .name = "htc-egpio",
352  .id = -1,
353  .resource = egpio_resources,
354  .num_resources = ARRAY_SIZE(egpio_resources),
355  .dev = {
356  .platform_data = &egpio_info,
357  },
358 };
359 
360 /*
361  * LCD - Sony display connected to ATI Imageon w3220
362  */
363 
364 static void sony_lcd_init(void)
365 {
366  gpio_set_value(GPIO84_HX4700_LCD_SQN, 1);
367  gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
368  gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
369  gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 0);
370  gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
371  mdelay(10);
372  gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
373  gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
374  mdelay(20);
375 
376  gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 1);
377  mdelay(5);
378  gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 1);
379 
380  /* FIXME: init w3220 registers here */
381 
382  mdelay(5);
383  gpio_set_value(GPIO70_HX4700_LCD_SLIN1, 1);
384  mdelay(10);
385  gpio_set_value(GPIO62_HX4700_LCD_nRESET, 1);
386  mdelay(10);
387  gpio_set_value(GPIO59_HX4700_LCD_PC1, 1);
388  mdelay(10);
389  gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 1);
390 }
391 
392 static void sony_lcd_off(void)
393 {
394  gpio_set_value(GPIO59_HX4700_LCD_PC1, 0);
395  gpio_set_value(GPIO62_HX4700_LCD_nRESET, 0);
396  mdelay(10);
397  gpio_set_value(GPIO112_HX4700_LCD_N2V7_7V3_ON, 0);
398  mdelay(10);
399  gpio_set_value(GPIO111_HX4700_LCD_AVDD_3V3_ON, 0);
400  mdelay(10);
401  gpio_set_value(GPIO110_HX4700_LCD_LVDD_3V3_ON, 0);
402 }
403 
404 #ifdef CONFIG_PM
405 static void w3220_lcd_suspend(struct w100fb_par *wfb)
406 {
407  sony_lcd_off();
408 }
409 
410 static void w3220_lcd_resume(struct w100fb_par *wfb)
411 {
412  sony_lcd_init();
413 }
414 #else
415 #define w3220_lcd_resume NULL
416 #define w3220_lcd_suspend NULL
417 #endif
418 
419 static struct w100_tg_info w3220_tg_info = {
420  .suspend = w3220_lcd_suspend,
421  .resume = w3220_lcd_resume,
422 };
423 
424 /* W3220_VGA QVGA */
425 static struct w100_gen_regs w3220_regs = {
426  .lcd_format = 0x00000003,
427  .lcdd_cntl1 = 0x00000000,
428  .lcdd_cntl2 = 0x0003ffff,
429  .genlcd_cntl1 = 0x00abf003, /* 0x00fff003 */
430  .genlcd_cntl2 = 0x00000003,
431  .genlcd_cntl3 = 0x000102aa,
432 };
433 
434 static struct w100_mode w3220_modes[] = {
435 {
436  .xres = 480,
437  .yres = 640,
438  .left_margin = 15,
439  .right_margin = 16,
440  .upper_margin = 8,
441  .lower_margin = 7,
442  .crtc_ss = 0x00000000,
443  .crtc_ls = 0xa1ff01f9, /* 0x21ff01f9 */
444  .crtc_gs = 0xc0000000, /* 0x40000000 */
445  .crtc_vpos_gs = 0x0000028f,
446  .crtc_ps1_active = 0x00000000, /* 0x41060010 */
447  .crtc_rev = 0,
448  .crtc_dclk = 0x80000000,
449  .crtc_gclk = 0x040a0104,
450  .crtc_goe = 0,
451  .pll_freq = 95,
452  .pixclk_divider = 4,
453  .pixclk_divider_rotated = 4,
454  .pixclk_src = CLK_SRC_PLL,
455  .sysclk_divider = 0,
456  .sysclk_src = CLK_SRC_PLL,
457 },
458 {
459  .xres = 240,
460  .yres = 320,
461  .left_margin = 9,
462  .right_margin = 8,
463  .upper_margin = 5,
464  .lower_margin = 4,
465  .crtc_ss = 0x80150014,
466  .crtc_ls = 0xa0fb00f7,
467  .crtc_gs = 0xc0080007,
468  .crtc_vpos_gs = 0x00080007,
469  .crtc_rev = 0x0000000a,
470  .crtc_dclk = 0x81700030,
471  .crtc_gclk = 0x8015010f,
472  .crtc_goe = 0x00000000,
473  .pll_freq = 95,
474  .pixclk_divider = 4,
475  .pixclk_divider_rotated = 4,
476  .pixclk_src = CLK_SRC_PLL,
477  .sysclk_divider = 0,
478  .sysclk_src = CLK_SRC_PLL,
479 },
480 };
481 
482 struct w100_mem_info w3220_mem_info = {
483  .ext_cntl = 0x09640011,
484  .sdram_mode_reg = 0x00600021,
485  .ext_timing_cntl = 0x1a001545, /* 0x15001545 */
486  .io_cntl = 0x7ddd7333,
487  .size = 0x1fffff,
488 };
489 
490 struct w100_bm_mem_info w3220_bm_mem_info = {
491  .ext_mem_bw = 0x50413e01,
492  .offset = 0,
493  .ext_timing_ctl = 0x00043f7f,
494  .ext_cntl = 0x00000010,
495  .mode_reg = 0x00250000,
496  .io_cntl = 0x0fff0000,
497  .config = 0x08301480,
498 };
499 
500 static struct w100_gpio_regs w3220_gpio_info = {
501  .init_data1 = 0xdfe00100, /* GPIO_DATA */
502  .gpio_dir1 = 0xffff0000, /* GPIO_CNTL1 */
503  .gpio_oe1 = 0x00000000, /* GPIO_CNTL2 */
504  .init_data2 = 0x00000000, /* GPIO_DATA2 */
505  .gpio_dir2 = 0x00000000, /* GPIO_CNTL3 */
506  .gpio_oe2 = 0x00000000, /* GPIO_CNTL4 */
507 };
508 
509 static struct w100fb_mach_info w3220_info = {
510  .tg = &w3220_tg_info,
511  .mem = &w3220_mem_info,
512  .bm_mem = &w3220_bm_mem_info,
513  .gpio = &w3220_gpio_info,
514  .regs = &w3220_regs,
515  .modelist = w3220_modes,
516  .num_modes = 2,
517  .xtal_freq = 16000000,
518 };
519 
520 static struct resource w3220_resources[] = {
521  [0] = DEFINE_RES_MEM(ATI_W3220_PHYS, SZ_16M),
522 };
523 
524 static struct platform_device w3220 = {
525  .name = "w100fb",
526  .id = -1,
527  .dev = {
528  .platform_data = &w3220_info,
529  },
530  .num_resources = ARRAY_SIZE(w3220_resources),
531  .resource = w3220_resources,
532 };
533 
534 static void hx4700_lcd_set_power(struct plat_lcd_data *pd, unsigned int power)
535 {
536  if (power)
537  sony_lcd_init();
538  else
539  sony_lcd_off();
540 }
541 
542 static struct plat_lcd_data hx4700_lcd_data = {
543  .set_power = hx4700_lcd_set_power,
544 };
545 
546 static struct platform_device hx4700_lcd = {
547  .name = "platform-lcd",
548  .id = -1,
549  .dev = {
550  .platform_data = &hx4700_lcd_data,
551  .parent = &w3220.dev,
552  },
553 };
554 
555 /*
556  * Backlight
557  */
558 
559 static struct platform_pwm_backlight_data backlight_data = {
560  .pwm_id = -1, /* Superseded by pwm_lookup */
561  .max_brightness = 200,
562  .dft_brightness = 100,
563  .pwm_period_ns = 30923,
564 };
565 
566 static struct platform_device backlight = {
567  .name = "pwm-backlight",
568  .id = -1,
569  .dev = {
570  .parent = &pxa27x_device_pwm1.dev,
571  .platform_data = &backlight_data,
572  },
573 };
574 
575 static struct pwm_lookup hx4700_pwm_lookup[] = {
576  PWM_LOOKUP("pxa27x-pwm.1", 0, "pwm-backlight", NULL),
577 };
578 
579 /*
580  * USB "Transceiver"
581  */
582 
583 static struct gpio_vbus_mach_info gpio_vbus_info = {
584  .gpio_pullup = GPIO76_HX4700_USBC_PUEN,
585  .gpio_vbus = GPIOD14_nUSBC_DETECT,
586  .gpio_vbus_inverted = 1,
587 };
588 
589 static struct platform_device gpio_vbus = {
590  .name = "gpio-vbus",
591  .id = -1,
592  .dev = {
593  .platform_data = &gpio_vbus_info,
594  },
595 };
596 
597 /*
598  * Touchscreen - TSC2046 connected to SSP2
599  */
600 
601 static const struct ads7846_platform_data tsc2046_info = {
602  .model = 7846,
603  .vref_delay_usecs = 100,
604  .pressure_max = 1024,
605  .debounce_max = 10,
606  .debounce_tol = 3,
607  .debounce_rep = 1,
608  .gpio_pendown = GPIO58_HX4700_TSC2046_nPENIRQ,
609 };
610 
611 static struct pxa2xx_spi_chip tsc2046_chip = {
612  .tx_threshold = 1,
613  .rx_threshold = 2,
614  .timeout = 64,
615  .gpio_cs = GPIO88_HX4700_TSC2046_CS,
616 };
617 
618 static struct spi_board_info tsc2046_board_info[] __initdata = {
619  {
620  .modalias = "ads7846",
621  .bus_num = 2,
622  .max_speed_hz = 2600000, /* 100 kHz sample rate */
623  .irq = PXA_GPIO_TO_IRQ(GPIO58_HX4700_TSC2046_nPENIRQ),
624  .platform_data = &tsc2046_info,
625  .controller_data = &tsc2046_chip,
626  },
627 };
628 
629 static struct pxa2xx_spi_master pxa_ssp2_master_info = {
630  .num_chipselect = 1,
631  .clock_enable = CKEN_SSP2,
632  .enable_dma = 1,
633 };
634 
635 /*
636  * External power
637  */
638 
639 static int power_supply_init(struct device *dev)
640 {
641  return gpio_request(GPIOD9_nAC_IN, "AC charger detect");
642 }
643 
644 static int hx4700_is_ac_online(void)
645 {
646  return !gpio_get_value(GPIOD9_nAC_IN);
647 }
648 
649 static void power_supply_exit(struct device *dev)
650 {
651  gpio_free(GPIOD9_nAC_IN);
652 }
653 
654 static char *hx4700_supplicants[] = {
655  "ds2760-battery.0", "backup-battery"
656 };
657 
658 static struct pda_power_pdata power_supply_info = {
659  .init = power_supply_init,
660  .is_ac_online = hx4700_is_ac_online,
661  .exit = power_supply_exit,
662  .supplied_to = hx4700_supplicants,
663  .num_supplicants = ARRAY_SIZE(hx4700_supplicants),
664 };
665 
666 static struct resource power_supply_resources[] = {
667  [0] = DEFINE_RES_NAMED(PXA_GPIO_TO_IRQ(GPIOD9_nAC_IN), 1, "ac",
668  IORESOURCE_IRQ |
669  IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE),
670  [1] = DEFINE_RES_NAMED(PXA_GPIO_TO_IRQ(GPIOD14_nUSBC_DETECT), 1, "usb",
671  IORESOURCE_IRQ |
672  IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE),
673 };
674 
675 static struct platform_device power_supply = {
676  .name = "pda-power",
677  .id = -1,
678  .dev = {
679  .platform_data = &power_supply_info,
680  },
681  .resource = power_supply_resources,
682  .num_resources = ARRAY_SIZE(power_supply_resources),
683 };
684 
685 /*
686  * Battery charger
687  */
688 
689 static struct regulator_consumer_supply bq24022_consumers[] = {
690  REGULATOR_SUPPLY("vbus_draw", NULL),
691  REGULATOR_SUPPLY("ac_draw", NULL),
692 };
693 
694 static struct regulator_init_data bq24022_init_data = {
695  .constraints = {
696  .max_uA = 500000,
697  .valid_ops_mask = REGULATOR_CHANGE_CURRENT|REGULATOR_CHANGE_STATUS,
698  },
699  .num_consumer_supplies = ARRAY_SIZE(bq24022_consumers),
700  .consumer_supplies = bq24022_consumers,
701 };
702 
703 static struct gpio bq24022_gpios[] = {
704  { GPIO96_HX4700_BQ24022_ISET2, GPIOF_OUT_INIT_LOW, "bq24022_iset2" },
705 };
706 
707 static struct gpio_regulator_state bq24022_states[] = {
708  { .value = 100000, .gpios = (0 << 0) },
709  { .value = 500000, .gpios = (1 << 0) },
710 };
711 
712 static struct gpio_regulator_config bq24022_info = {
713  .supply_name = "bq24022",
714 
715  .enable_gpio = GPIO72_HX4700_BQ24022_nCHARGE_EN,
716  .enable_high = 0,
717  .enabled_at_boot = 0,
718 
719  .gpios = bq24022_gpios,
720  .nr_gpios = ARRAY_SIZE(bq24022_gpios),
721 
722  .states = bq24022_states,
723  .nr_states = ARRAY_SIZE(bq24022_states),
724 
725  .type = REGULATOR_CURRENT,
726  .init_data = &bq24022_init_data,
727 };
728 
729 static struct platform_device bq24022 = {
730  .name = "gpio-regulator",
731  .id = -1,
732  .dev = {
733  .platform_data = &bq24022_info,
734  },
735 };
736 
737 /*
738  * StrataFlash
739  */
740 
741 static void hx4700_set_vpp(struct platform_device *pdev, int vpp)
742 {
743  gpio_set_value(GPIO91_HX4700_FLASH_VPEN, vpp);
744 }
745 
746 static struct resource strataflash_resource[] = {
747  [0] = DEFINE_RES_MEM(PXA_CS0_PHYS, SZ_64M),
748  [1] = DEFINE_RES_MEM(PXA_CS0_PHYS + SZ_64M, SZ_64M),
749 };
750 
751 static struct physmap_flash_data strataflash_data = {
752  .width = 4,
753  .set_vpp = hx4700_set_vpp,
754 };
755 
756 static struct platform_device strataflash = {
757  .name = "physmap-flash",
758  .id = -1,
759  .resource = strataflash_resource,
760  .num_resources = ARRAY_SIZE(strataflash_resource),
761  .dev = {
762  .platform_data = &strataflash_data,
763  },
764 };
765 
766 /*
767  * Maxim MAX1587A on PI2C
768  */
769 
770 static struct regulator_consumer_supply max1587a_consumer =
771  REGULATOR_SUPPLY("vcc_core", NULL);
772 
773 static struct regulator_init_data max1587a_v3_info = {
774  .constraints = {
775  .name = "vcc_core range",
776  .min_uV = 900000,
777  .max_uV = 1705000,
778  .always_on = 1,
779  .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
780  },
781  .num_consumer_supplies = 1,
782  .consumer_supplies = &max1587a_consumer,
783 };
784 
785 static struct max1586_subdev_data max1587a_subdev = {
786  .name = "vcc_core",
787  .id = MAX1586_V3,
788  .platform_data = &max1587a_v3_info,
789 };
790 
791 static struct max1586_platform_data max1587a_info = {
792  .num_subdevs = 1,
793  .subdevs = &max1587a_subdev,
794  .v3_gain = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */
795 };
796 
797 static struct i2c_board_info __initdata pi2c_board_info[] = {
798  {
799  I2C_BOARD_INFO("max1586", 0x14),
800  .platform_data = &max1587a_info,
801  },
802 };
803 
804 /*
805  * Asahi Kasei AK4641 on I2C
806  */
807 
808 static struct ak4641_platform_data ak4641_info = {
809  .gpio_power = GPIO27_HX4700_CODEC_ON,
810  .gpio_npdn = GPIO109_HX4700_CODEC_nPDN,
811 };
812 
813 static struct i2c_board_info i2c_board_info[] __initdata = {
814  {
815  I2C_BOARD_INFO("ak4641", 0x12),
816  .platform_data = &ak4641_info,
817  },
818 };
819 
820 static struct platform_device audio = {
821  .name = "hx4700-audio",
822  .id = -1,
823 };
824 
825 
826 /*
827  * Platform devices
828  */
829 
830 static struct platform_device *devices[] __initdata = {
831  &asic3,
832  &gpio_keys,
833  &navpoint,
834  &backlight,
835  &w3220,
836  &hx4700_lcd,
837  &egpio,
838  &bq24022,
839  &gpio_vbus,
840  &power_supply,
841  &strataflash,
842  &audio,
843 };
844 
845 static struct gpio global_gpios[] = {
846  { GPIO12_HX4700_ASIC3_IRQ, GPIOF_IN, "ASIC3_IRQ" },
847  { GPIO13_HX4700_W3220_IRQ, GPIOF_IN, "W3220_IRQ" },
848  { GPIO14_HX4700_nWLAN_IRQ, GPIOF_IN, "WLAN_IRQ" },
849  { GPIO59_HX4700_LCD_PC1, GPIOF_OUT_INIT_HIGH, "LCD_PC1" },
850  { GPIO62_HX4700_LCD_nRESET, GPIOF_OUT_INIT_HIGH, "LCD_RESET" },
851  { GPIO70_HX4700_LCD_SLIN1, GPIOF_OUT_INIT_HIGH, "LCD_SLIN1" },
852  { GPIO84_HX4700_LCD_SQN, GPIOF_OUT_INIT_HIGH, "LCD_SQN" },
853  { GPIO110_HX4700_LCD_LVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_LVDD" },
854  { GPIO111_HX4700_LCD_AVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_AVDD" },
855  { GPIO32_HX4700_RS232_ON, GPIOF_OUT_INIT_HIGH, "RS232_ON" },
856  { GPIO61_HX4700_W3220_nRESET, GPIOF_OUT_INIT_HIGH, "W3220_nRESET" },
857  { GPIO71_HX4700_ASIC3_nRESET, GPIOF_OUT_INIT_HIGH, "ASIC3_nRESET" },
858  { GPIO81_HX4700_CPU_GP_nRESET, GPIOF_OUT_INIT_HIGH, "CPU_GP_nRESET" },
859  { GPIO82_HX4700_EUART_RESET, GPIOF_OUT_INIT_HIGH, "EUART_RESET" },
860  { GPIO116_HX4700_CPU_HW_nRESET, GPIOF_OUT_INIT_HIGH, "CPU_HW_nRESET" },
861 };
862 
863 static void __init hx4700_init(void)
864 {
865  int ret;
866 
867  PCFR = PCFR_GPR_EN | PCFR_OPDE;
868 
869  pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config));
870  gpio_set_wake(GPIO12_HX4700_ASIC3_IRQ, 1);
871  ret = gpio_request_array(ARRAY_AND_SIZE(global_gpios));
872  if (ret)
873  pr_err ("hx4700: Failed to request GPIOs.\n");
874 
875  pxa_set_ffuart_info(NULL);
876  pxa_set_btuart_info(NULL);
877  pxa_set_stuart_info(NULL);
878 
879  platform_add_devices(devices, ARRAY_SIZE(devices));
880  pwm_add_table(hx4700_pwm_lookup, ARRAY_SIZE(hx4700_pwm_lookup));
881 
882  pxa_set_ficp_info(&ficp_info);
883  pxa27x_set_i2c_power_info(NULL);
884  pxa_set_i2c_info(NULL);
885  i2c_register_board_info(0, ARRAY_AND_SIZE(i2c_board_info));
886  i2c_register_board_info(1, ARRAY_AND_SIZE(pi2c_board_info));
887  pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
888  spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info));
889 
890  gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 0);
891  mdelay(10);
892  gpio_set_value(GPIO71_HX4700_ASIC3_nRESET, 1);
893  mdelay(10);
894 }
895 
896 MACHINE_START(H4700, "HP iPAQ HX4700")
897  .atag_offset = 0x100,
898  .map_io = pxa27x_map_io,
899  .nr_irqs = HX4700_NR_IRQS,
900  .init_irq = pxa27x_init_irq,
901  .handle_irq = pxa27x_handle_irq,
902  .init_machine = hx4700_init,
903  .timer = &pxa_timer,
904  .restart = pxa_restart,
905 MACHINE_END
Generated on Thu Jan 10 2013 13:01:09 for Linux Kernel by   doxygen 1.8.2