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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / arch / arm / mach-pxa / z2.c
blob900cefc4c5ea6ea0726640fd762e21129b1e28b6
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-pxa/z2.c
4 *
5 * Support for the Zipit Z2 Handheld device.
6 *
7 * Copyright (C) 2009-2010 Marek Vasut <marek.vasut@gmail.com>
8 *
9 * Based on research and code by: Ken McGuire
10 * Based on mainstone.c as modified for the Zipit Z2.
11 */
12
13 #include <linux/platform_device.h>
14 #include <linux/mtd/mtd.h>
15 #include <linux/mtd/partitions.h>
16 #include <linux/pwm.h>
17 #include <linux/pwm_backlight.h>
18 #include <linux/z2_battery.h>
19 #include <linux/dma-mapping.h>
20 #include <linux/spi/spi.h>
21 #include <linux/spi/pxa2xx_spi.h>
22 #include <linux/spi/libertas_spi.h>
23 #include <linux/spi/lms283gf05.h>
24 #include <linux/power_supply.h>
25 #include <linux/mtd/physmap.h>
26 #include <linux/gpio.h>
27 #include <linux/gpio/machine.h>
28 #include <linux/gpio_keys.h>
29 #include <linux/delay.h>
30 #include <linux/regulator/machine.h>
31 #include <linux/platform_data/i2c-pxa.h>
32
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35
36 #include "pxa27x.h"
37 #include "mfp-pxa27x.h"
38 #include <mach/z2.h>
39 #include <linux/platform_data/video-pxafb.h>
40 #include <linux/platform_data/mmc-pxamci.h>
41 #include <linux/platform_data/keypad-pxa27x.h>
42 #include "pm.h"
43
44 #include "generic.h"
45 #include "devices.h"
46
47 /******************************************************************************
48 * Pin configuration
49 ******************************************************************************/
50 static unsigned long z2_pin_config[] = {
51
52 /* LCD - 16bpp Active TFT */
53 GPIO58_LCD_LDD_0,
54 GPIO59_LCD_LDD_1,
55 GPIO60_LCD_LDD_2,
56 GPIO61_LCD_LDD_3,
57 GPIO62_LCD_LDD_4,
58 GPIO63_LCD_LDD_5,
59 GPIO64_LCD_LDD_6,
60 GPIO65_LCD_LDD_7,
61 GPIO66_LCD_LDD_8,
62 GPIO67_LCD_LDD_9,
63 GPIO68_LCD_LDD_10,
64 GPIO69_LCD_LDD_11,
65 GPIO70_LCD_LDD_12,
66 GPIO71_LCD_LDD_13,
67 GPIO72_LCD_LDD_14,
68 GPIO73_LCD_LDD_15,
69 GPIO74_LCD_FCLK,
70 GPIO75_LCD_LCLK,
71 GPIO76_LCD_PCLK,
72 GPIO77_LCD_BIAS,
73 GPIO19_GPIO, /* LCD reset */
74 GPIO88_GPIO, /* LCD chipselect */
75
76 /* PWM */
77 GPIO115_PWM1_OUT, /* Keypad Backlight */
78 GPIO11_PWM2_OUT, /* LCD Backlight */
79
80 /* MMC */
81 GPIO32_MMC_CLK,
82 GPIO112_MMC_CMD,
83 GPIO92_MMC_DAT_0,
84 GPIO109_MMC_DAT_1,
85 GPIO110_MMC_DAT_2,
86 GPIO111_MMC_DAT_3,
87 GPIO96_GPIO, /* SD detect */
88
89 /* STUART */
90 GPIO46_STUART_RXD,
91 GPIO47_STUART_TXD,
92
93 /* Keypad */
94 GPIO100_KP_MKIN_0,
95 GPIO101_KP_MKIN_1,
96 GPIO102_KP_MKIN_2,
97 GPIO34_KP_MKIN_3,
98 GPIO38_KP_MKIN_4,
99 GPIO16_KP_MKIN_5,
100 GPIO17_KP_MKIN_6,
101 GPIO103_KP_MKOUT_0,
102 GPIO104_KP_MKOUT_1,
103 GPIO105_KP_MKOUT_2,
104 GPIO106_KP_MKOUT_3,
105 GPIO107_KP_MKOUT_4,
106 GPIO108_KP_MKOUT_5,
107 GPIO35_KP_MKOUT_6,
108 GPIO41_KP_MKOUT_7,
109
110 /* I2C */
111 GPIO117_I2C_SCL,
112 GPIO118_I2C_SDA,
113
114 /* SSP1 */
115 GPIO23_SSP1_SCLK, /* SSP1_SCK */
116 GPIO25_SSP1_TXD, /* SSP1_TXD */
117 GPIO26_SSP1_RXD, /* SSP1_RXD */
118
119 /* SSP2 */
120 GPIO22_SSP2_SCLK, /* SSP2_SCK */
121 GPIO13_SSP2_TXD, /* SSP2_TXD */
122 GPIO40_SSP2_RXD, /* SSP2_RXD */
123
124 /* LEDs */
125 GPIO10_GPIO, /* WiFi LED */
126 GPIO83_GPIO, /* Charging LED */
127 GPIO85_GPIO, /* Charged LED */
128
129 /* I2S */
130 GPIO28_I2S_BITCLK_OUT,
131 GPIO29_I2S_SDATA_IN,
132 GPIO30_I2S_SDATA_OUT,
133 GPIO31_I2S_SYNC,
134 GPIO113_I2S_SYSCLK,
135
136 /* MISC */
137 GPIO0_GPIO, /* AC power detect */
138 GPIO1_GPIO, /* Power button */
139 GPIO37_GPIO, /* Headphone detect */
140 GPIO98_GPIO, /* Lid switch */
141 GPIO14_GPIO, /* WiFi Power */
142 GPIO24_GPIO, /* WiFi CS */
143 GPIO36_GPIO, /* WiFi IRQ */
144 GPIO88_GPIO, /* LCD CS */
145 };
146
147 /******************************************************************************
148 * NOR Flash
149 ******************************************************************************/
150 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
151 static struct resource z2_flash_resource = {
152 .start = PXA_CS0_PHYS,
153 .end = PXA_CS0_PHYS + SZ_8M - 1,
154 .flags = IORESOURCE_MEM,
155 };
156
157 static struct mtd_partition z2_flash_parts[] = {
158 {
159 .name = "U-Boot Bootloader",
160 .offset = 0x0,
161 .size = 0x40000,
162 }, {
163 .name = "U-Boot Environment",
164 .offset = 0x40000,
165 .size = 0x20000,
166 }, {
167 .name = "Flash",
168 .offset = 0x60000,
169 .size = MTDPART_SIZ_FULL,
170 },
171 };
172
173 static struct physmap_flash_data z2_flash_data = {
174 .width = 2,
175 .parts = z2_flash_parts,
176 .nr_parts = ARRAY_SIZE(z2_flash_parts),
177 };
178
179 static struct platform_device z2_flash = {
180 .name = "physmap-flash",
181 .id = -1,
182 .resource = &z2_flash_resource,
183 .num_resources = 1,
184 .dev = {
185 .platform_data = &z2_flash_data,
186 },
187 };
188
189 static void __init z2_nor_init(void)
190 {
191 platform_device_register(&z2_flash);
192 }
193 #else
194 static inline void z2_nor_init(void) {}
195 #endif
196
197 /******************************************************************************
198 * Backlight
199 ******************************************************************************/
200 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
201 static struct pwm_lookup z2_pwm_lookup[] = {
202 PWM_LOOKUP("pxa27x-pwm.1", 0, "pwm-backlight.0", NULL, 1260320,
203 PWM_POLARITY_NORMAL),
204 PWM_LOOKUP("pxa27x-pwm.0", 1, "pwm-backlight.1", NULL, 1260320,
205 PWM_POLARITY_NORMAL),
206 };
207
208 static struct platform_pwm_backlight_data z2_backlight_data[] = {
209 [0] = {
210 /* Keypad Backlight */
211 .max_brightness = 1023,
212 .dft_brightness = 0,
213 .enable_gpio = -1,
214 },
215 [1] = {
216 /* LCD Backlight */
217 .max_brightness = 1023,
218 .dft_brightness = 512,
219 .enable_gpio = -1,
220 },
221 };
222
223 static struct platform_device z2_backlight_devices[2] = {
224 {
225 .name = "pwm-backlight",
226 .id = 0,
227 .dev = {
228 .platform_data = &z2_backlight_data[1],
229 },
230 },
231 {
232 .name = "pwm-backlight",
233 .id = 1,
234 .dev = {
235 .platform_data = &z2_backlight_data[0],
236 },
237 },
238 };
239 static void __init z2_pwm_init(void)
240 {
241 pwm_add_table(z2_pwm_lookup, ARRAY_SIZE(z2_pwm_lookup));
242 platform_device_register(&z2_backlight_devices[0]);
243 platform_device_register(&z2_backlight_devices[1]);
244 }
245 #else
246 static inline void z2_pwm_init(void) {}
247 #endif
248
249 /******************************************************************************
250 * Framebuffer
251 ******************************************************************************/
252 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
253 static struct pxafb_mode_info z2_lcd_modes[] = {
254 {
255 .pixclock = 192000,
256 .xres = 240,
257 .yres = 320,
258 .bpp = 16,
259
260 .left_margin = 4,
261 .right_margin = 8,
262 .upper_margin = 4,
263 .lower_margin = 8,
264
265 .hsync_len = 4,
266 .vsync_len = 4,
267 },
268 };
269
270 static struct pxafb_mach_info z2_lcd_screen = {
271 .modes = z2_lcd_modes,
272 .num_modes = ARRAY_SIZE(z2_lcd_modes),
273 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_BIAS_ACTIVE_LOW |
274 LCD_ALTERNATE_MAPPING,
275 };
276
277 static void __init z2_lcd_init(void)
278 {
279 pxa_set_fb_info(NULL, &z2_lcd_screen);
280 }
281 #else
282 static inline void z2_lcd_init(void) {}
283 #endif
284
285 /******************************************************************************
286 * SD/MMC card controller
287 ******************************************************************************/
288 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
289 static struct pxamci_platform_data z2_mci_platform_data = {
290 .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
291 .detect_delay_ms = 200,
292 };
293
294 static struct gpiod_lookup_table z2_mci_gpio_table = {
295 .dev_id = "pxa2xx-mci.0",
296 .table = {
297 GPIO_LOOKUP("gpio-pxa", GPIO96_ZIPITZ2_SD_DETECT,
298 "cd", GPIO_ACTIVE_LOW),
299 { },
300 },
301 };
302
303 static void __init z2_mmc_init(void)
304 {
305 gpiod_add_lookup_table(&z2_mci_gpio_table);
306 pxa_set_mci_info(&z2_mci_platform_data);
307 }
308 #else
309 static inline void z2_mmc_init(void) {}
310 #endif
311
312 /******************************************************************************
313 * LEDs
314 ******************************************************************************/
315 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
316 struct gpio_led z2_gpio_leds[] = {
317 {
318 .name = "z2:green:wifi",
319 .default_trigger = "none",
320 .gpio = GPIO10_ZIPITZ2_LED_WIFI,
321 .active_low = 1,
322 }, {
323 .name = "z2:green:charged",
324 .default_trigger = "mmc0",
325 .gpio = GPIO85_ZIPITZ2_LED_CHARGED,
326 .active_low = 1,
327 }, {
328 .name = "z2:amber:charging",
329 .default_trigger = "Z2-charging-or-full",
330 .gpio = GPIO83_ZIPITZ2_LED_CHARGING,
331 .active_low = 1,
332 },
333 };
334
335 static struct gpio_led_platform_data z2_gpio_led_info = {
336 .leds = z2_gpio_leds,
337 .num_leds = ARRAY_SIZE(z2_gpio_leds),
338 };
339
340 static struct platform_device z2_leds = {
341 .name = "leds-gpio",
342 .id = -1,
343 .dev = {
344 .platform_data = &z2_gpio_led_info,
345 }
346 };
347
348 static void __init z2_leds_init(void)
349 {
350 platform_device_register(&z2_leds);
351 }
352 #else
353 static inline void z2_leds_init(void) {}
354 #endif
355
356 /******************************************************************************
357 * GPIO keyboard
358 ******************************************************************************/
359 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
360 static const unsigned int z2_matrix_keys[] = {
361 KEY(0, 0, KEY_OPTION),
362 KEY(1, 0, KEY_UP),
363 KEY(2, 0, KEY_DOWN),
364 KEY(3, 0, KEY_LEFT),
365 KEY(4, 0, KEY_RIGHT),
366 KEY(5, 0, KEY_END),
367 KEY(6, 0, KEY_KPPLUS),
368
369 KEY(0, 1, KEY_HOME),
370 KEY(1, 1, KEY_Q),
371 KEY(2, 1, KEY_I),
372 KEY(3, 1, KEY_G),
373 KEY(4, 1, KEY_X),
374 KEY(5, 1, KEY_ENTER),
375 KEY(6, 1, KEY_KPMINUS),
376
377 KEY(0, 2, KEY_PAGEUP),
378 KEY(1, 2, KEY_W),
379 KEY(2, 2, KEY_O),
380 KEY(3, 2, KEY_H),
381 KEY(4, 2, KEY_C),
382 KEY(5, 2, KEY_LEFTALT),
383
384 KEY(0, 3, KEY_PAGEDOWN),
385 KEY(1, 3, KEY_E),
386 KEY(2, 3, KEY_P),
387 KEY(3, 3, KEY_J),
388 KEY(4, 3, KEY_V),
389 KEY(5, 3, KEY_LEFTSHIFT),
390
391 KEY(0, 4, KEY_ESC),
392 KEY(1, 4, KEY_R),
393 KEY(2, 4, KEY_A),
394 KEY(3, 4, KEY_K),
395 KEY(4, 4, KEY_B),
396 KEY(5, 4, KEY_LEFTCTRL),
397
398 KEY(0, 5, KEY_TAB),
399 KEY(1, 5, KEY_T),
400 KEY(2, 5, KEY_S),
401 KEY(3, 5, KEY_L),
402 KEY(4, 5, KEY_N),
403 KEY(5, 5, KEY_SPACE),
404
405 KEY(0, 6, KEY_STOPCD),
406 KEY(1, 6, KEY_Y),
407 KEY(2, 6, KEY_D),
408 KEY(3, 6, KEY_BACKSPACE),
409 KEY(4, 6, KEY_M),
410 KEY(5, 6, KEY_COMMA),
411
412 KEY(0, 7, KEY_PLAYCD),
413 KEY(1, 7, KEY_U),
414 KEY(2, 7, KEY_F),
415 KEY(3, 7, KEY_Z),
416 KEY(4, 7, KEY_SEMICOLON),
417 KEY(5, 7, KEY_DOT),
418 };
419
420 static struct matrix_keymap_data z2_matrix_keymap_data = {
421 .keymap = z2_matrix_keys,
422 .keymap_size = ARRAY_SIZE(z2_matrix_keys),
423 };
424
425 static struct pxa27x_keypad_platform_data z2_keypad_platform_data = {
426 .matrix_key_rows = 7,
427 .matrix_key_cols = 8,
428 .matrix_keymap_data = &z2_matrix_keymap_data,
429
430 .debounce_interval = 30,
431 };
432
433 static void __init z2_mkp_init(void)
434 {
435 pxa_set_keypad_info(&z2_keypad_platform_data);
436 }
437 #else
438 static inline void z2_mkp_init(void) {}
439 #endif
440
441 /******************************************************************************
442 * GPIO keys
443 ******************************************************************************/
444 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
445 static struct gpio_keys_button z2_pxa_buttons[] = {
446 {
447 .code = KEY_POWER,
448 .gpio = GPIO1_ZIPITZ2_POWER_BUTTON,
449 .active_low = 0,
450 .desc = "Power Button",
451 .wakeup = 1,
452 .type = EV_KEY,
453 },
454 {
455 .code = SW_LID,
456 .gpio = GPIO98_ZIPITZ2_LID_BUTTON,
457 .active_low = 1,
458 .desc = "Lid Switch",
459 .wakeup = 0,
460 .type = EV_SW,
461 },
462 };
463
464 static struct gpio_keys_platform_data z2_pxa_keys_data = {
465 .buttons = z2_pxa_buttons,
466 .nbuttons = ARRAY_SIZE(z2_pxa_buttons),
467 };
468
469 static struct platform_device z2_pxa_keys = {
470 .name = "gpio-keys",
471 .id = -1,
472 .dev = {
473 .platform_data = &z2_pxa_keys_data,
474 },
475 };
476
477 static void __init z2_keys_init(void)
478 {
479 platform_device_register(&z2_pxa_keys);
480 }
481 #else
482 static inline void z2_keys_init(void) {}
483 #endif
484
485 /******************************************************************************
486 * Battery
487 ******************************************************************************/
488 #if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
489 static struct z2_battery_info batt_chip_info = {
490 .batt_I2C_bus = 0,
491 .batt_I2C_addr = 0x55,
492 .batt_I2C_reg = 2,
493 .charge_gpio = GPIO0_ZIPITZ2_AC_DETECT,
494 .min_voltage = 3475000,
495 .max_voltage = 4190000,
496 .batt_div = 59,
497 .batt_mult = 1000000,
498 .batt_tech = POWER_SUPPLY_TECHNOLOGY_LION,
499 .batt_name = "Z2",
500 };
501
502 static struct i2c_board_info __initdata z2_i2c_board_info[] = {
503 {
504 I2C_BOARD_INFO("aer915", 0x55),
505 .platform_data = &batt_chip_info,
506 }, {
507 I2C_BOARD_INFO("wm8750", 0x1b),
508 },
509
510 };
511
512 static void __init z2_i2c_init(void)
513 {
514 pxa_set_i2c_info(NULL);
515 i2c_register_board_info(0, ARRAY_AND_SIZE(z2_i2c_board_info));
516 }
517 #else
518 static inline void z2_i2c_init(void) {}
519 #endif
520
521 /******************************************************************************
522 * SSP Devices - WiFi and LCD control
523 ******************************************************************************/
524 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
525 /* WiFi */
526 static int z2_lbs_spi_setup(struct spi_device *spi)
527 {
528 int ret = 0;
529
530 ret = gpio_request(GPIO14_ZIPITZ2_WIFI_POWER, "WiFi Power");
531 if (ret)
532 goto err;
533
534 ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_POWER, 1);
535 if (ret)
536 goto err2;
537
538 /* Wait until card is powered on */
539 mdelay(180);
540
541 spi->bits_per_word = 16;
542 spi->mode = SPI_MODE_2,
543
544 spi_setup(spi);
545
546 return 0;
547
548 err2:
549 gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
550 err:
551 return ret;
552 };
553
554 static int z2_lbs_spi_teardown(struct spi_device *spi)
555 {
556 gpio_set_value(GPIO14_ZIPITZ2_WIFI_POWER, 0);
557 gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);
558
559 return 0;
560 };
561
562 static struct pxa2xx_spi_chip z2_lbs_chip_info = {
563 .rx_threshold = 8,
564 .tx_threshold = 8,
565 .timeout = 1000,
566 .gpio_cs = GPIO24_ZIPITZ2_WIFI_CS,
567 };
568
569 static struct libertas_spi_platform_data z2_lbs_pdata = {
570 .use_dummy_writes = 1,
571 .setup = z2_lbs_spi_setup,
572 .teardown = z2_lbs_spi_teardown,
573 };
574
575 /* LCD */
576 static struct pxa2xx_spi_chip lms283_chip_info = {
577 .rx_threshold = 1,
578 .tx_threshold = 1,
579 .timeout = 64,
580 .gpio_cs = GPIO88_ZIPITZ2_LCD_CS,
581 };
582
583 static const struct lms283gf05_pdata lms283_pdata = {
584 .reset_gpio = GPIO19_ZIPITZ2_LCD_RESET,
585 };
586
587 static struct spi_board_info spi_board_info[] __initdata = {
588 {
589 .modalias = "libertas_spi",
590 .platform_data = &z2_lbs_pdata,
591 .controller_data = &z2_lbs_chip_info,
592 .irq = PXA_GPIO_TO_IRQ(GPIO36_ZIPITZ2_WIFI_IRQ),
593 .max_speed_hz = 13000000,
594 .bus_num = 1,
595 .chip_select = 0,
596 },
597 {
598 .modalias = "lms283gf05",
599 .controller_data = &lms283_chip_info,
600 .platform_data = &lms283_pdata,
601 .max_speed_hz = 400000,
602 .bus_num = 2,
603 .chip_select = 0,
604 },
605 };
606
607 static struct pxa2xx_spi_controller pxa_ssp1_master_info = {
608 .num_chipselect = 1,
609 .enable_dma = 1,
610 };
611
612 static struct pxa2xx_spi_controller pxa_ssp2_master_info = {
613 .num_chipselect = 1,
614 };
615
616 static void __init z2_spi_init(void)
617 {
618 pxa2xx_set_spi_info(1, &pxa_ssp1_master_info);
619 pxa2xx_set_spi_info(2, &pxa_ssp2_master_info);
620 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
621 }
622 #else
623 static inline void z2_spi_init(void) {}
624 #endif
625
626 /******************************************************************************
627 * Core power regulator
628 ******************************************************************************/
629 #if defined(CONFIG_REGULATOR_TPS65023) || \
630 defined(CONFIG_REGULATOR_TPS65023_MODULE)
631 static struct regulator_consumer_supply z2_tps65021_consumers[] = {
632 REGULATOR_SUPPLY("vcc_core", NULL),
633 };
634
635 static struct regulator_init_data z2_tps65021_info[] = {
636 {
637 .constraints = {
638 .name = "vcc_core range",
639 .min_uV = 800000,
640 .max_uV = 1600000,
641 .always_on = 1,
642 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
643 },
644 .consumer_supplies = z2_tps65021_consumers,
645 .num_consumer_supplies = ARRAY_SIZE(z2_tps65021_consumers),
646 }, {
647 .constraints = {
648 .name = "DCDC2",
649 .min_uV = 3300000,
650 .max_uV = 3300000,
651 .always_on = 1,
652 },
653 }, {
654 .constraints = {
655 .name = "DCDC3",
656 .min_uV = 1800000,
657 .max_uV = 1800000,
658 .always_on = 1,
659 },
660 }, {
661 .constraints = {
662 .name = "LDO1",
663 .min_uV = 1000000,
664 .max_uV = 3150000,
665 .always_on = 1,
666 },
667 }, {
668 .constraints = {
669 .name = "LDO2",
670 .min_uV = 1050000,
671 .max_uV = 3300000,
672 .always_on = 1,
673 },
674 }
675 };
676
677 static struct i2c_board_info __initdata z2_pi2c_board_info[] = {
678 {
679 I2C_BOARD_INFO("tps65021", 0x48),
680 .platform_data = &z2_tps65021_info,
681 },
682 };
683
684 static void __init z2_pmic_init(void)
685 {
686 pxa27x_set_i2c_power_info(NULL);
687 i2c_register_board_info(1, ARRAY_AND_SIZE(z2_pi2c_board_info));
688 }
689 #else
690 static inline void z2_pmic_init(void) {}
691 #endif
692
693 #ifdef CONFIG_PM
694 static void z2_power_off(void)
695 {
696 /* We're using deep sleep as poweroff, so clear PSPR to ensure that
697 * bootloader will jump to its entry point in resume handler
698 */
699 PSPR = 0x0;
700 local_irq_disable();
701 pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
702 pxa27x_cpu_pm_enter(PM_SUSPEND_MEM);
703 }
704 #else
705 #define z2_power_off NULL
706 #endif
707
708 /******************************************************************************
709 * Machine init
710 ******************************************************************************/
711 static void __init z2_init(void)
712 {
713 pxa2xx_mfp_config(ARRAY_AND_SIZE(z2_pin_config));
714
715 pxa_set_ffuart_info(NULL);
716 pxa_set_btuart_info(NULL);
717 pxa_set_stuart_info(NULL);
718
719 z2_lcd_init();
720 z2_mmc_init();
721 z2_mkp_init();
722 z2_i2c_init();
723 z2_spi_init();
724 z2_nor_init();
725 z2_pwm_init();
726 z2_leds_init();
727 z2_keys_init();
728 z2_pmic_init();
729
730 pm_power_off = z2_power_off;
731 }
732
733 MACHINE_START(ZIPIT2, "Zipit Z2")
734 .atag_offset = 0x100,
735 .map_io = pxa27x_map_io,
736 .nr_irqs = PXA_NR_IRQS,
737 .init_irq = pxa27x_init_irq,
738 .handle_irq = pxa27x_handle_irq,
739 .init_time = pxa_timer_init,
740 .init_machine = z2_init,
741 .restart = pxa_restart,
742 MACHINE_END
Linux with added FPC-III support