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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / arch / arm / mach-pxa / em-x270.c
blobd8681a33103031876887f198e58fcdc3ef1009e0
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Support for CompuLab EM-X270 platform
4 *
5 * Copyright (C) 2007, 2008 CompuLab, Ltd.
6 * Author: Mike Rapoport <mike@compulab.co.il>
7 */
8
9 #include <linux/irq.h>
10 #include <linux/platform_device.h>
11 #include <linux/delay.h>
12
13 #include <linux/dm9000.h>
14 #include <linux/platform_data/rtc-v3020.h>
15 #include <linux/mtd/platnand.h>
16 #include <linux/mtd/physmap.h>
17 #include <linux/input.h>
18 #include <linux/gpio_keys.h>
19 #include <linux/gpio.h>
20 #include <linux/gpio/machine.h>
21 #include <linux/mfd/da903x.h>
22 #include <linux/regulator/machine.h>
23 #include <linux/regulator/fixed.h>
24 #include <linux/spi/spi.h>
25 #include <linux/spi/tdo24m.h>
26 #include <linux/spi/libertas_spi.h>
27 #include <linux/spi/pxa2xx_spi.h>
28 #include <linux/power_supply.h>
29 #include <linux/apm-emulation.h>
30 #include <linux/i2c.h>
31 #include <linux/platform_data/pca953x.h>
32 #include <linux/platform_data/i2c-pxa.h>
33 #include <linux/regulator/userspace-consumer.h>
34
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37
38 #include "pxa27x.h"
39 #include "pxa27x-udc.h"
40 #include <mach/audio.h>
41 #include <linux/platform_data/video-pxafb.h>
42 #include <linux/platform_data/usb-ohci-pxa27x.h>
43 #include <linux/platform_data/mmc-pxamci.h>
44 #include <linux/platform_data/keypad-pxa27x.h>
45 #include <linux/platform_data/media/camera-pxa.h>
46
47 #include "generic.h"
48 #include "devices.h"
49
50 /* EM-X270 specific GPIOs */
51 #define GPIO13_MMC_CD (13)
52 #define GPIO95_MMC_WP (95)
53 #define GPIO56_NAND_RB (56)
54 #define GPIO93_CAM_RESET (93)
55 #define GPIO16_USB_HUB_RESET (16)
56
57 /* eXeda specific GPIOs */
58 #define GPIO114_MMC_CD (114)
59 #define GPIO20_NAND_RB (20)
60 #define GPIO38_SD_PWEN (38)
61 #define GPIO37_WLAN_RST (37)
62 #define GPIO95_TOUCHPAD_INT (95)
63 #define GPIO130_CAM_RESET (130)
64 #define GPIO10_USB_HUB_RESET (10)
65
66 /* common GPIOs */
67 #define GPIO11_NAND_CS (11)
68 #define GPIO41_ETHIRQ (41)
69 #define EM_X270_ETHIRQ PXA_GPIO_TO_IRQ(GPIO41_ETHIRQ)
70 #define GPIO115_WLAN_PWEN (115)
71 #define GPIO19_WLAN_STRAP (19)
72 #define GPIO9_USB_VBUS_EN (9)
73
74 static int mmc_cd;
75 static int nand_rb;
76 static int dm9000_flags;
77 static int cam_reset;
78 static int usb_hub_reset;
79
80 static unsigned long common_pin_config[] = {
81 /* AC'97 */
82 GPIO28_AC97_BITCLK,
83 GPIO29_AC97_SDATA_IN_0,
84 GPIO30_AC97_SDATA_OUT,
85 GPIO31_AC97_SYNC,
86 GPIO98_AC97_SYSCLK,
87 GPIO113_AC97_nRESET,
88
89 /* BTUART */
90 GPIO42_BTUART_RXD,
91 GPIO43_BTUART_TXD,
92 GPIO44_BTUART_CTS,
93 GPIO45_BTUART_RTS,
94
95 /* STUART */
96 GPIO46_STUART_RXD,
97 GPIO47_STUART_TXD,
98
99 /* MCI controller */
100 GPIO32_MMC_CLK,
101 GPIO112_MMC_CMD,
102 GPIO92_MMC_DAT_0,
103 GPIO109_MMC_DAT_1,
104 GPIO110_MMC_DAT_2,
105 GPIO111_MMC_DAT_3,
106
107 /* LCD */
108 GPIOxx_LCD_TFT_16BPP,
109
110 /* QCI */
111 GPIO84_CIF_FV,
112 GPIO25_CIF_LV,
113 GPIO53_CIF_MCLK,
114 GPIO54_CIF_PCLK,
115 GPIO81_CIF_DD_0,
116 GPIO55_CIF_DD_1,
117 GPIO51_CIF_DD_2,
118 GPIO50_CIF_DD_3,
119 GPIO52_CIF_DD_4,
120 GPIO48_CIF_DD_5,
121 GPIO17_CIF_DD_6,
122 GPIO12_CIF_DD_7,
123
124 /* I2C */
125 GPIO117_I2C_SCL,
126 GPIO118_I2C_SDA,
127
128 /* Keypad */
129 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
130 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
131 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
132 GPIO34_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
133 GPIO39_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
134 GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
135 GPIO91_KP_MKIN_6 | WAKEUP_ON_LEVEL_HIGH,
136 GPIO36_KP_MKIN_7 | WAKEUP_ON_LEVEL_HIGH,
137 GPIO103_KP_MKOUT_0,
138 GPIO104_KP_MKOUT_1,
139 GPIO105_KP_MKOUT_2,
140 GPIO106_KP_MKOUT_3,
141 GPIO107_KP_MKOUT_4,
142 GPIO108_KP_MKOUT_5,
143 GPIO96_KP_MKOUT_6,
144 GPIO22_KP_MKOUT_7,
145
146 /* SSP1 */
147 GPIO26_SSP1_RXD,
148 GPIO23_SSP1_SCLK,
149 GPIO24_SSP1_SFRM,
150 GPIO57_SSP1_TXD,
151
152 /* SSP2 */
153 GPIO19_GPIO, /* SSP2 clock is used as GPIO for Libertas pin-strap */
154 GPIO14_GPIO,
155 GPIO89_SSP2_TXD,
156 GPIO88_SSP2_RXD,
157
158 /* SDRAM and local bus */
159 GPIO15_nCS_1,
160 GPIO78_nCS_2,
161 GPIO79_nCS_3,
162 GPIO80_nCS_4,
163 GPIO49_nPWE,
164 GPIO18_RDY,
165
166 /* GPIO */
167 GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH, /* sleep/resume button */
168
169 /* power controls */
170 GPIO20_GPIO | MFP_LPM_DRIVE_LOW, /* GPRS_PWEN */
171 GPIO115_GPIO | MFP_LPM_DRIVE_LOW, /* WLAN_PWEN */
172
173 /* NAND controls */
174 GPIO11_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */
175
176 /* interrupts */
177 GPIO41_GPIO, /* DM9000 interrupt */
178 };
179
180 static unsigned long em_x270_pin_config[] = {
181 GPIO13_GPIO, /* MMC card detect */
182 GPIO16_GPIO, /* USB hub reset */
183 GPIO56_GPIO, /* NAND Ready/Busy */
184 GPIO93_GPIO | MFP_LPM_DRIVE_LOW, /* Camera reset */
185 GPIO95_GPIO, /* MMC Write protect */
186 };
187
188 static unsigned long exeda_pin_config[] = {
189 GPIO10_GPIO, /* USB hub reset */
190 GPIO20_GPIO, /* NAND Ready/Busy */
191 GPIO38_GPIO | MFP_LPM_DRIVE_LOW, /* SD slot power */
192 GPIO95_GPIO, /* touchpad IRQ */
193 GPIO114_GPIO, /* MMC card detect */
194 };
195
196 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
197 static struct resource em_x270_dm9000_resource[] = {
198 [0] = {
199 .start = PXA_CS2_PHYS,
200 .end = PXA_CS2_PHYS + 3,
201 .flags = IORESOURCE_MEM,
202 },
203 [1] = {
204 .start = PXA_CS2_PHYS + 8,
205 .end = PXA_CS2_PHYS + 8 + 0x3f,
206 .flags = IORESOURCE_MEM,
207 },
208 [2] = {
209 .start = EM_X270_ETHIRQ,
210 .end = EM_X270_ETHIRQ,
211 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
212 }
213 };
214
215 static struct dm9000_plat_data em_x270_dm9000_platdata = {
216 .flags = DM9000_PLATF_NO_EEPROM,
217 };
218
219 static struct platform_device em_x270_dm9000 = {
220 .name = "dm9000",
221 .id = 0,
222 .num_resources = ARRAY_SIZE(em_x270_dm9000_resource),
223 .resource = em_x270_dm9000_resource,
224 .dev = {
225 .platform_data = &em_x270_dm9000_platdata,
226 }
227 };
228
229 static void __init em_x270_init_dm9000(void)
230 {
231 em_x270_dm9000_platdata.flags |= dm9000_flags;
232 platform_device_register(&em_x270_dm9000);
233 }
234 #else
235 static inline void em_x270_init_dm9000(void) {}
236 #endif
237
238 /* V3020 RTC */
239 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
240 static struct resource em_x270_v3020_resource[] = {
241 [0] = {
242 .start = PXA_CS4_PHYS,
243 .end = PXA_CS4_PHYS + 3,
244 .flags = IORESOURCE_MEM,
245 },
246 };
247
248 static struct v3020_platform_data em_x270_v3020_platdata = {
249 .leftshift = 0,
250 };
251
252 static struct platform_device em_x270_rtc = {
253 .name = "v3020",
254 .num_resources = ARRAY_SIZE(em_x270_v3020_resource),
255 .resource = em_x270_v3020_resource,
256 .id = -1,
257 .dev = {
258 .platform_data = &em_x270_v3020_platdata,
259 }
260 };
261
262 static void __init em_x270_init_rtc(void)
263 {
264 platform_device_register(&em_x270_rtc);
265 }
266 #else
267 static inline void em_x270_init_rtc(void) {}
268 #endif
269
270 /* NAND flash */
271 #if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
272 static inline void nand_cs_on(void)
273 {
274 gpio_set_value(GPIO11_NAND_CS, 0);
275 }
276
277 static void nand_cs_off(void)
278 {
279 dsb();
280
281 gpio_set_value(GPIO11_NAND_CS, 1);
282 }
283
284 /* hardware specific access to control-lines */
285 static void em_x270_nand_cmd_ctl(struct nand_chip *this, int dat,
286 unsigned int ctrl)
287 {
288 unsigned long nandaddr = (unsigned long)this->legacy.IO_ADDR_W;
289
290 dsb();
291
292 if (ctrl & NAND_CTRL_CHANGE) {
293 if (ctrl & NAND_ALE)
294 nandaddr |= (1 << 3);
295 else
296 nandaddr &= ~(1 << 3);
297 if (ctrl & NAND_CLE)
298 nandaddr |= (1 << 2);
299 else
300 nandaddr &= ~(1 << 2);
301 if (ctrl & NAND_NCE)
302 nand_cs_on();
303 else
304 nand_cs_off();
305 }
306
307 dsb();
308 this->legacy.IO_ADDR_W = (void __iomem *)nandaddr;
309 if (dat != NAND_CMD_NONE)
310 writel(dat, this->legacy.IO_ADDR_W);
311
312 dsb();
313 }
314
315 /* read device ready pin */
316 static int em_x270_nand_device_ready(struct nand_chip *this)
317 {
318 dsb();
319
320 return gpio_get_value(nand_rb);
321 }
322
323 static struct mtd_partition em_x270_partition_info[] = {
324 [0] = {
325 .name = "em_x270-0",
326 .offset = 0,
327 .size = SZ_4M,
328 },
329 [1] = {
330 .name = "em_x270-1",
331 .offset = MTDPART_OFS_APPEND,
332 .size = MTDPART_SIZ_FULL
333 },
334 };
335
336 struct platform_nand_data em_x270_nand_platdata = {
337 .chip = {
338 .nr_chips = 1,
339 .chip_offset = 0,
340 .nr_partitions = ARRAY_SIZE(em_x270_partition_info),
341 .partitions = em_x270_partition_info,
342 .chip_delay = 20,
343 },
344 .ctrl = {
345 .dev_ready = em_x270_nand_device_ready,
346 .select_chip = 0,
347 .cmd_ctrl = em_x270_nand_cmd_ctl,
348 },
349 };
350
351 static struct resource em_x270_nand_resource[] = {
352 [0] = {
353 .start = PXA_CS1_PHYS,
354 .end = PXA_CS1_PHYS + 12,
355 .flags = IORESOURCE_MEM,
356 },
357 };
358
359 static struct platform_device em_x270_nand = {
360 .name = "gen_nand",
361 .num_resources = ARRAY_SIZE(em_x270_nand_resource),
362 .resource = em_x270_nand_resource,
363 .id = -1,
364 .dev = {
365 .platform_data = &em_x270_nand_platdata,
366 }
367 };
368
369 static void __init em_x270_init_nand(void)
370 {
371 int err;
372
373 err = gpio_request(GPIO11_NAND_CS, "NAND CS");
374 if (err) {
375 pr_warn("EM-X270: failed to request NAND CS gpio\n");
376 return;
377 }
378
379 gpio_direction_output(GPIO11_NAND_CS, 1);
380
381 err = gpio_request(nand_rb, "NAND R/B");
382 if (err) {
383 pr_warn("EM-X270: failed to request NAND R/B gpio\n");
384 gpio_free(GPIO11_NAND_CS);
385 return;
386 }
387
388 gpio_direction_input(nand_rb);
389
390 platform_device_register(&em_x270_nand);
391 }
392 #else
393 static inline void em_x270_init_nand(void) {}
394 #endif
395
396 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
397 static struct mtd_partition em_x270_nor_parts[] = {
398 {
399 .name = "Bootloader",
400 .offset = 0x00000000,
401 .size = 0x00050000,
402 .mask_flags = MTD_WRITEABLE /* force read-only */
403 }, {
404 .name = "Environment",
405 .offset = 0x00050000,
406 .size = 0x00010000,
407 }, {
408 .name = "Reserved",
409 .offset = 0x00060000,
410 .size = 0x00050000,
411 .mask_flags = MTD_WRITEABLE /* force read-only */
412 }, {
413 .name = "Splashscreen",
414 .offset = 0x000b0000,
415 .size = 0x00050000,
416 }
417 };
418
419 static struct physmap_flash_data em_x270_nor_data[] = {
420 [0] = {
421 .width = 2,
422 .parts = em_x270_nor_parts,
423 .nr_parts = ARRAY_SIZE(em_x270_nor_parts),
424 },
425 };
426
427 static struct resource em_x270_nor_flash_resource = {
428 .start = PXA_CS0_PHYS,
429 .end = PXA_CS0_PHYS + SZ_1M - 1,
430 .flags = IORESOURCE_MEM,
431 };
432
433 static struct platform_device em_x270_physmap_flash = {
434 .name = "physmap-flash",
435 .id = 0,
436 .num_resources = 1,
437 .resource = &em_x270_nor_flash_resource,
438 .dev = {
439 .platform_data = &em_x270_nor_data,
440 },
441 };
442
443 static void __init em_x270_init_nor(void)
444 {
445 platform_device_register(&em_x270_physmap_flash);
446 }
447 #else
448 static inline void em_x270_init_nor(void) {}
449 #endif
450
451 /* PXA27x OHCI controller setup */
452 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
453 static struct regulator *em_x270_usb_ldo;
454
455 static int em_x270_usb_hub_init(void)
456 {
457 int err;
458
459 em_x270_usb_ldo = regulator_get(NULL, "vcc usb");
460 if (IS_ERR(em_x270_usb_ldo))
461 return PTR_ERR(em_x270_usb_ldo);
462
463 err = gpio_request(GPIO9_USB_VBUS_EN, "vbus en");
464 if (err)
465 goto err_free_usb_ldo;
466
467 err = gpio_request(usb_hub_reset, "hub rst");
468 if (err)
469 goto err_free_vbus_gpio;
470
471 /* USB Hub power-on and reset */
472 gpio_direction_output(usb_hub_reset, 1);
473 gpio_direction_output(GPIO9_USB_VBUS_EN, 0);
474 err = regulator_enable(em_x270_usb_ldo);
475 if (err)
476 goto err_free_rst_gpio;
477
478 gpio_set_value(usb_hub_reset, 0);
479 gpio_set_value(usb_hub_reset, 1);
480 regulator_disable(em_x270_usb_ldo);
481 err = regulator_enable(em_x270_usb_ldo);
482 if (err)
483 goto err_free_rst_gpio;
484
485 gpio_set_value(usb_hub_reset, 0);
486 gpio_set_value(GPIO9_USB_VBUS_EN, 1);
487
488 return 0;
489
490 err_free_rst_gpio:
491 gpio_free(usb_hub_reset);
492 err_free_vbus_gpio:
493 gpio_free(GPIO9_USB_VBUS_EN);
494 err_free_usb_ldo:
495 regulator_put(em_x270_usb_ldo);
496
497 return err;
498 }
499
500 static int em_x270_ohci_init(struct device *dev)
501 {
502 int err;
503
504 /* we don't want to entirely disable USB if the HUB init failed */
505 err = em_x270_usb_hub_init();
506 if (err)
507 pr_err("USB Hub initialization failed: %d\n", err);
508
509 /* enable port 2 transiever */
510 UP2OCR = UP2OCR_HXS | UP2OCR_HXOE;
511
512 return 0;
513 }
514
515 static void em_x270_ohci_exit(struct device *dev)
516 {
517 gpio_free(usb_hub_reset);
518 gpio_free(GPIO9_USB_VBUS_EN);
519
520 if (!IS_ERR(em_x270_usb_ldo)) {
521 if (regulator_is_enabled(em_x270_usb_ldo))
522 regulator_disable(em_x270_usb_ldo);
523
524 regulator_put(em_x270_usb_ldo);
525 }
526 }
527
528 static struct pxaohci_platform_data em_x270_ohci_platform_data = {
529 .port_mode = PMM_PERPORT_MODE,
530 .flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
531 .init = em_x270_ohci_init,
532 .exit = em_x270_ohci_exit,
533 };
534
535 static void __init em_x270_init_ohci(void)
536 {
537 pxa_set_ohci_info(&em_x270_ohci_platform_data);
538 }
539 #else
540 static inline void em_x270_init_ohci(void) {}
541 #endif
542
543 /* MCI controller setup */
544 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
545 static struct regulator *em_x270_sdio_ldo;
546
547 static struct gpiod_lookup_table em_x270_mci_wp_gpio_table = {
548 .dev_id = "pxa2xx-mci.0",
549 .table = {
550 /* Write protect on GPIO 95 */
551 GPIO_LOOKUP("gpio-pxa", GPIO95_MMC_WP, "wp", GPIO_ACTIVE_LOW),
552 { },
553 },
554 };
555
556 static int em_x270_mci_init(struct device *dev,
557 irq_handler_t em_x270_detect_int,
558 void *data)
559 {
560 int err;
561
562 em_x270_sdio_ldo = regulator_get(dev, "vcc sdio");
563 if (IS_ERR(em_x270_sdio_ldo)) {
564 dev_err(dev, "can't request SDIO power supply: %ld\n",
565 PTR_ERR(em_x270_sdio_ldo));
566 return PTR_ERR(em_x270_sdio_ldo);
567 }
568
569 err = request_irq(gpio_to_irq(mmc_cd), em_x270_detect_int,
570 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
571 "MMC card detect", data);
572 if (err) {
573 dev_err(dev, "can't request MMC card detect IRQ: %d\n", err);
574 goto err_irq;
575 }
576
577 if (!machine_is_em_x270()) {
578 err = gpio_request(GPIO38_SD_PWEN, "sdio power");
579 if (err) {
580 dev_err(dev, "can't request MMC power control : %d\n",
581 err);
582 goto err_gpio_wp;
583 }
584 gpio_direction_output(GPIO38_SD_PWEN, 1);
585 }
586
587 return 0;
588
589 err_gpio_wp:
590 free_irq(gpio_to_irq(mmc_cd), data);
591 err_irq:
592 regulator_put(em_x270_sdio_ldo);
593
594 return err;
595 }
596
597 static int em_x270_mci_setpower(struct device *dev, unsigned int vdd)
598 {
599 struct pxamci_platform_data* p_d = dev->platform_data;
600
601 if ((1 << vdd) & p_d->ocr_mask) {
602 int vdd_uV = (2000 + (vdd - __ffs(MMC_VDD_20_21)) * 100) * 1000;
603
604 regulator_set_voltage(em_x270_sdio_ldo, vdd_uV, vdd_uV);
605 return regulator_enable(em_x270_sdio_ldo);
606 } else {
607 regulator_disable(em_x270_sdio_ldo);
608 }
609 return 0;
610 }
611
612 static void em_x270_mci_exit(struct device *dev, void *data)
613 {
614 free_irq(gpio_to_irq(mmc_cd), data);
615 regulator_put(em_x270_sdio_ldo);
616
617 if (!machine_is_em_x270())
618 gpio_free(GPIO38_SD_PWEN);
619 }
620
621 static struct pxamci_platform_data em_x270_mci_platform_data = {
622 .detect_delay_ms = 250,
623 .ocr_mask = MMC_VDD_20_21|MMC_VDD_21_22|MMC_VDD_22_23|
624 MMC_VDD_24_25|MMC_VDD_25_26|MMC_VDD_26_27|
625 MMC_VDD_27_28|MMC_VDD_28_29|MMC_VDD_29_30|
626 MMC_VDD_30_31|MMC_VDD_31_32,
627 .init = em_x270_mci_init,
628 .setpower = em_x270_mci_setpower,
629 .exit = em_x270_mci_exit,
630 };
631
632 static void __init em_x270_init_mmc(void)
633 {
634 if (machine_is_em_x270())
635 gpiod_add_lookup_table(&em_x270_mci_wp_gpio_table);
636
637 pxa_set_mci_info(&em_x270_mci_platform_data);
638 }
639 #else
640 static inline void em_x270_init_mmc(void) {}
641 #endif
642
643 /* LCD */
644 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
645 static struct pxafb_mode_info em_x270_lcd_modes[] = {
646 [0] = {
647 .pixclock = 38250,
648 .bpp = 16,
649 .xres = 480,
650 .yres = 640,
651 .hsync_len = 8,
652 .vsync_len = 2,
653 .left_margin = 8,
654 .upper_margin = 2,
655 .right_margin = 24,
656 .lower_margin = 4,
657 .sync = 0,
658 },
659 [1] = {
660 .pixclock = 153800,
661 .bpp = 16,
662 .xres = 240,
663 .yres = 320,
664 .hsync_len = 8,
665 .vsync_len = 2,
666 .left_margin = 8,
667 .upper_margin = 2,
668 .right_margin = 88,
669 .lower_margin = 2,
670 .sync = 0,
671 },
672 };
673
674 static struct pxafb_mach_info em_x270_lcd = {
675 .modes = em_x270_lcd_modes,
676 .num_modes = 2,
677 .lcd_conn = LCD_COLOR_TFT_16BPP,
678 };
679
680 static void __init em_x270_init_lcd(void)
681 {
682 pxa_set_fb_info(NULL, &em_x270_lcd);
683 }
684 #else
685 static inline void em_x270_init_lcd(void) {}
686 #endif
687
688 #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
689 static struct pxa2xx_spi_controller em_x270_spi_info = {
690 .num_chipselect = 1,
691 };
692
693 static struct pxa2xx_spi_chip em_x270_tdo24m_chip = {
694 .rx_threshold = 1,
695 .tx_threshold = 1,
696 .gpio_cs = -1,
697 };
698
699 static struct tdo24m_platform_data em_x270_tdo24m_pdata = {
700 .model = TDO35S,
701 };
702
703 static struct pxa2xx_spi_controller em_x270_spi_2_info = {
704 .num_chipselect = 1,
705 .enable_dma = 1,
706 };
707
708 static struct pxa2xx_spi_chip em_x270_libertas_chip = {
709 .rx_threshold = 1,
710 .tx_threshold = 1,
711 .timeout = 1000,
712 .gpio_cs = 14,
713 };
714
715 static unsigned long em_x270_libertas_pin_config[] = {
716 /* SSP2 */
717 GPIO19_SSP2_SCLK,
718 GPIO14_GPIO,
719 GPIO89_SSP2_TXD,
720 GPIO88_SSP2_RXD,
721 };
722
723 static int em_x270_libertas_setup(struct spi_device *spi)
724 {
725 int err = gpio_request(GPIO115_WLAN_PWEN, "WLAN PWEN");
726 if (err)
727 return err;
728
729 err = gpio_request(GPIO19_WLAN_STRAP, "WLAN STRAP");
730 if (err)
731 goto err_free_pwen;
732
733 if (machine_is_exeda()) {
734 err = gpio_request(GPIO37_WLAN_RST, "WLAN RST");
735 if (err)
736 goto err_free_strap;
737
738 gpio_direction_output(GPIO37_WLAN_RST, 1);
739 msleep(100);
740 }
741
742 gpio_direction_output(GPIO19_WLAN_STRAP, 1);
743 msleep(100);
744
745 pxa2xx_mfp_config(ARRAY_AND_SIZE(em_x270_libertas_pin_config));
746
747 gpio_direction_output(GPIO115_WLAN_PWEN, 0);
748 msleep(100);
749 gpio_set_value(GPIO115_WLAN_PWEN, 1);
750 msleep(100);
751
752 spi->bits_per_word = 16;
753 spi_setup(spi);
754
755 return 0;
756
757 err_free_strap:
758 gpio_free(GPIO19_WLAN_STRAP);
759 err_free_pwen:
760 gpio_free(GPIO115_WLAN_PWEN);
761
762 return err;
763 }
764
765 static int em_x270_libertas_teardown(struct spi_device *spi)
766 {
767 gpio_set_value(GPIO115_WLAN_PWEN, 0);
768 gpio_free(GPIO115_WLAN_PWEN);
769 gpio_free(GPIO19_WLAN_STRAP);
770
771 if (machine_is_exeda()) {
772 gpio_set_value(GPIO37_WLAN_RST, 0);
773 gpio_free(GPIO37_WLAN_RST);
774 }
775
776 return 0;
777 }
778
779 struct libertas_spi_platform_data em_x270_libertas_pdata = {
780 .use_dummy_writes = 1,
781 .setup = em_x270_libertas_setup,
782 .teardown = em_x270_libertas_teardown,
783 };
784
785 static struct spi_board_info em_x270_spi_devices[] __initdata = {
786 {
787 .modalias = "tdo24m",
788 .max_speed_hz = 1000000,
789 .bus_num = 1,
790 .chip_select = 0,
791 .controller_data = &em_x270_tdo24m_chip,
792 .platform_data = &em_x270_tdo24m_pdata,
793 },
794 {
795 .modalias = "libertas_spi",
796 .max_speed_hz = 13000000,
797 .bus_num = 2,
798 .irq = PXA_GPIO_TO_IRQ(116),
799 .chip_select = 0,
800 .controller_data = &em_x270_libertas_chip,
801 .platform_data = &em_x270_libertas_pdata,
802 },
803 };
804
805 static void __init em_x270_init_spi(void)
806 {
807 pxa2xx_set_spi_info(1, &em_x270_spi_info);
808 pxa2xx_set_spi_info(2, &em_x270_spi_2_info);
809 spi_register_board_info(ARRAY_AND_SIZE(em_x270_spi_devices));
810 }
811 #else
812 static inline void em_x270_init_spi(void) {}
813 #endif
814
815 #if defined(CONFIG_SND_PXA2XX_LIB_AC97)
816 static pxa2xx_audio_ops_t em_x270_ac97_info = {
817 .reset_gpio = 113,
818 };
819
820 static void __init em_x270_init_ac97(void)
821 {
822 pxa_set_ac97_info(&em_x270_ac97_info);
823 }
824 #else
825 static inline void em_x270_init_ac97(void) {}
826 #endif
827
828 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
829 static const unsigned int em_x270_module_matrix_keys[] = {
830 KEY(0, 0, KEY_A), KEY(1, 0, KEY_UP), KEY(2, 1, KEY_B),
831 KEY(0, 2, KEY_LEFT), KEY(1, 1, KEY_ENTER), KEY(2, 0, KEY_RIGHT),
832 KEY(0, 1, KEY_C), KEY(1, 2, KEY_DOWN), KEY(2, 2, KEY_D),
833 };
834
835 static struct matrix_keymap_data em_x270_matrix_keymap_data = {
836 .keymap = em_x270_module_matrix_keys,
837 .keymap_size = ARRAY_SIZE(em_x270_module_matrix_keys),
838 };
839
840 struct pxa27x_keypad_platform_data em_x270_module_keypad_info = {
841 /* code map for the matrix keys */
842 .matrix_key_rows = 3,
843 .matrix_key_cols = 3,
844 .matrix_keymap_data = &em_x270_matrix_keymap_data,
845 };
846
847 static const unsigned int em_x270_exeda_matrix_keys[] = {
848 KEY(0, 0, KEY_RIGHTSHIFT), KEY(0, 1, KEY_RIGHTCTRL),
849 KEY(0, 2, KEY_RIGHTALT), KEY(0, 3, KEY_SPACE),
850 KEY(0, 4, KEY_LEFTALT), KEY(0, 5, KEY_LEFTCTRL),
851 KEY(0, 6, KEY_ENTER), KEY(0, 7, KEY_SLASH),
852
853 KEY(1, 0, KEY_DOT), KEY(1, 1, KEY_M),
854 KEY(1, 2, KEY_N), KEY(1, 3, KEY_B),
855 KEY(1, 4, KEY_V), KEY(1, 5, KEY_C),
856 KEY(1, 6, KEY_X), KEY(1, 7, KEY_Z),
857
858 KEY(2, 0, KEY_LEFTSHIFT), KEY(2, 1, KEY_SEMICOLON),
859 KEY(2, 2, KEY_L), KEY(2, 3, KEY_K),
860 KEY(2, 4, KEY_J), KEY(2, 5, KEY_H),
861 KEY(2, 6, KEY_G), KEY(2, 7, KEY_F),
862
863 KEY(3, 0, KEY_D), KEY(3, 1, KEY_S),
864 KEY(3, 2, KEY_A), KEY(3, 3, KEY_TAB),
865 KEY(3, 4, KEY_BACKSPACE), KEY(3, 5, KEY_P),
866 KEY(3, 6, KEY_O), KEY(3, 7, KEY_I),
867
868 KEY(4, 0, KEY_U), KEY(4, 1, KEY_Y),
869 KEY(4, 2, KEY_T), KEY(4, 3, KEY_R),
870 KEY(4, 4, KEY_E), KEY(4, 5, KEY_W),
871 KEY(4, 6, KEY_Q), KEY(4, 7, KEY_MINUS),
872
873 KEY(5, 0, KEY_0), KEY(5, 1, KEY_9),
874 KEY(5, 2, KEY_8), KEY(5, 3, KEY_7),
875 KEY(5, 4, KEY_6), KEY(5, 5, KEY_5),
876 KEY(5, 6, KEY_4), KEY(5, 7, KEY_3),
877
878 KEY(6, 0, KEY_2), KEY(6, 1, KEY_1),
879 KEY(6, 2, KEY_ENTER), KEY(6, 3, KEY_END),
880 KEY(6, 4, KEY_DOWN), KEY(6, 5, KEY_UP),
881 KEY(6, 6, KEY_MENU), KEY(6, 7, KEY_F1),
882
883 KEY(7, 0, KEY_LEFT), KEY(7, 1, KEY_RIGHT),
884 KEY(7, 2, KEY_BACK), KEY(7, 3, KEY_HOME),
885 KEY(7, 4, 0), KEY(7, 5, 0),
886 KEY(7, 6, 0), KEY(7, 7, 0),
887 };
888
889 static struct matrix_keymap_data em_x270_exeda_matrix_keymap_data = {
890 .keymap = em_x270_exeda_matrix_keys,
891 .keymap_size = ARRAY_SIZE(em_x270_exeda_matrix_keys),
892 };
893
894 struct pxa27x_keypad_platform_data em_x270_exeda_keypad_info = {
895 /* code map for the matrix keys */
896 .matrix_key_rows = 8,
897 .matrix_key_cols = 8,
898 .matrix_keymap_data = &em_x270_exeda_matrix_keymap_data,
899 };
900
901 static void __init em_x270_init_keypad(void)
902 {
903 if (machine_is_em_x270())
904 pxa_set_keypad_info(&em_x270_module_keypad_info);
905 else
906 pxa_set_keypad_info(&em_x270_exeda_keypad_info);
907 }
908 #else
909 static inline void em_x270_init_keypad(void) {}
910 #endif
911
912 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
913 static struct gpio_keys_button gpio_keys_button[] = {
914 [0] = {
915 .desc = "sleep/wakeup",
916 .code = KEY_SUSPEND,
917 .type = EV_PWR,
918 .gpio = 1,
919 .wakeup = 1,
920 },
921 };
922
923 static struct gpio_keys_platform_data em_x270_gpio_keys_data = {
924 .buttons = gpio_keys_button,
925 .nbuttons = 1,
926 };
927
928 static struct platform_device em_x270_gpio_keys = {
929 .name = "gpio-keys",
930 .id = -1,
931 .dev = {
932 .platform_data = &em_x270_gpio_keys_data,
933 },
934 };
935
936 static void __init em_x270_init_gpio_keys(void)
937 {
938 platform_device_register(&em_x270_gpio_keys);
939 }
940 #else
941 static inline void em_x270_init_gpio_keys(void) {}
942 #endif
943
944 /* Quick Capture Interface and sensor setup */
945 #if defined(CONFIG_VIDEO_PXA27x) || defined(CONFIG_VIDEO_PXA27x_MODULE)
946 static int em_x270_sensor_init(void)
947 {
948 int ret;
949
950 ret = gpio_request(cam_reset, "camera reset");
951 if (ret)
952 return ret;
953
954 gpio_direction_output(cam_reset, 0);
955 gpio_set_value(cam_reset, 1);
956
957 return 0;
958 }
959
960 static struct regulator_consumer_supply camera_dummy_supplies[] = {
961 REGULATOR_SUPPLY("vdd", "0-005d"),
962 };
963
964 static struct regulator_init_data camera_dummy_initdata = {
965 .consumer_supplies = camera_dummy_supplies,
966 .num_consumer_supplies = ARRAY_SIZE(camera_dummy_supplies),
967 .constraints = {
968 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
969 },
970 };
971
972 static struct fixed_voltage_config camera_dummy_config = {
973 .supply_name = "camera_vdd",
974 .input_supply = "vcc cam",
975 .microvolts = 2800000,
976 .init_data = &camera_dummy_initdata,
977 };
978
979 static struct platform_device camera_supply_dummy_device = {
980 .name = "reg-fixed-voltage",
981 .id = 1,
982 .dev = {
983 .platform_data = &camera_dummy_config,
984 },
985 };
986
987 struct pxacamera_platform_data em_x270_camera_platform_data = {
988 .flags = PXA_CAMERA_MASTER | PXA_CAMERA_DATAWIDTH_8 |
989 PXA_CAMERA_PCLK_EN | PXA_CAMERA_MCLK_EN,
990 .mclk_10khz = 2600,
991 .sensor_i2c_adapter_id = 0,
992 .sensor_i2c_address = 0x5d,
993 };
994
995 static void __init em_x270_init_camera(void)
996 {
997 if (em_x270_sensor_init() == 0)
998 pxa_set_camera_info(&em_x270_camera_platform_data);
999 platform_device_register(&camera_supply_dummy_device);
1000 }
1001 #else
1002 static inline void em_x270_init_camera(void) {}
1003 #endif
1004
1005 static struct regulator_bulk_data em_x270_gps_consumer_supply = {
1006 .supply = "vcc gps",
1007 };
1008
1009 static struct regulator_userspace_consumer_data em_x270_gps_consumer_data = {
1010 .name = "vcc gps",
1011 .num_supplies = 1,
1012 .supplies = &em_x270_gps_consumer_supply,
1013 };
1014
1015 static struct platform_device em_x270_gps_userspace_consumer = {
1016 .name = "reg-userspace-consumer",
1017 .id = 0,
1018 .dev = {
1019 .platform_data = &em_x270_gps_consumer_data,
1020 },
1021 };
1022
1023 static struct regulator_bulk_data em_x270_gprs_consumer_supply = {
1024 .supply = "vcc gprs",
1025 };
1026
1027 static struct regulator_userspace_consumer_data em_x270_gprs_consumer_data = {
1028 .name = "vcc gprs",
1029 .num_supplies = 1,
1030 .supplies = &em_x270_gprs_consumer_supply
1031 };
1032
1033 static struct platform_device em_x270_gprs_userspace_consumer = {
1034 .name = "reg-userspace-consumer",
1035 .id = 1,
1036 .dev = {
1037 .platform_data = &em_x270_gprs_consumer_data,
1038 }
1039 };
1040
1041 static struct platform_device *em_x270_userspace_consumers[] = {
1042 &em_x270_gps_userspace_consumer,
1043 &em_x270_gprs_userspace_consumer,
1044 };
1045
1046 static void __init em_x270_userspace_consumers_init(void)
1047 {
1048 platform_add_devices(ARRAY_AND_SIZE(em_x270_userspace_consumers));
1049 }
1050
1051 /* DA9030 related initializations */
1052 #define REGULATOR_CONSUMER(_name, _dev_name, _supply) \
1053 static struct regulator_consumer_supply _name##_consumers[] = { \
1054 REGULATOR_SUPPLY(_supply, _dev_name), \
1055 }
1056
1057 REGULATOR_CONSUMER(ldo3, "reg-userspace-consumer.0", "vcc gps");
1058 REGULATOR_CONSUMER(ldo5, NULL, "vcc cam");
1059 REGULATOR_CONSUMER(ldo10, "pxa2xx-mci", "vcc sdio");
1060 REGULATOR_CONSUMER(ldo12, NULL, "vcc usb");
1061 REGULATOR_CONSUMER(ldo19, "reg-userspace-consumer.1", "vcc gprs");
1062 REGULATOR_CONSUMER(buck2, NULL, "vcc_core");
1063
1064 #define REGULATOR_INIT(_ldo, _min_uV, _max_uV, _ops_mask) \
1065 static struct regulator_init_data _ldo##_data = { \
1066 .constraints = { \
1067 .min_uV = _min_uV, \
1068 .max_uV = _max_uV, \
1069 .state_mem = { \
1070 .enabled = 0, \
1071 }, \
1072 .valid_ops_mask = _ops_mask, \
1073 .apply_uV = 1, \
1074 }, \
1075 .num_consumer_supplies = ARRAY_SIZE(_ldo##_consumers), \
1076 .consumer_supplies = _ldo##_consumers, \
1077 };
1078
1079 REGULATOR_INIT(ldo3, 3200000, 3200000, REGULATOR_CHANGE_STATUS);
1080 REGULATOR_INIT(ldo5, 3000000, 3000000, REGULATOR_CHANGE_STATUS);
1081 REGULATOR_INIT(ldo10, 2000000, 3200000,
1082 REGULATOR_CHANGE_STATUS | REGULATOR_CHANGE_VOLTAGE);
1083 REGULATOR_INIT(ldo12, 3000000, 3000000, REGULATOR_CHANGE_STATUS);
1084 REGULATOR_INIT(ldo19, 3200000, 3200000, REGULATOR_CHANGE_STATUS);
1085 REGULATOR_INIT(buck2, 1000000, 1650000, REGULATOR_CHANGE_VOLTAGE);
1086
1087 struct led_info em_x270_led_info = {
1088 .name = "em-x270:orange",
1089 .default_trigger = "battery-charging-or-full",
1090 };
1091
1092 struct power_supply_info em_x270_psy_info = {
1093 .name = "battery",
1094 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
1095 .voltage_max_design = 4200000,
1096 .voltage_min_design = 3000000,
1097 .use_for_apm = 1,
1098 };
1099
1100 static void em_x270_battery_low(void)
1101 {
1102 #if defined(CONFIG_APM_EMULATION)
1103 apm_queue_event(APM_LOW_BATTERY);
1104 #endif
1105 }
1106
1107 static void em_x270_battery_critical(void)
1108 {
1109 #if defined(CONFIG_APM_EMULATION)
1110 apm_queue_event(APM_CRITICAL_SUSPEND);
1111 #endif
1112 }
1113
1114 struct da9030_battery_info em_x270_batterty_info = {
1115 .battery_info = &em_x270_psy_info,
1116
1117 .charge_milliamp = 1000,
1118 .charge_millivolt = 4200,
1119
1120 .vbat_low = 3600,
1121 .vbat_crit = 3400,
1122 .vbat_charge_start = 4100,
1123 .vbat_charge_stop = 4200,
1124 .vbat_charge_restart = 4000,
1125
1126 .vcharge_min = 3200,
1127 .vcharge_max = 5500,
1128
1129 .tbat_low = 197,
1130 .tbat_high = 78,
1131 .tbat_restart = 100,
1132
1133 .batmon_interval = 0,
1134
1135 .battery_low = em_x270_battery_low,
1136 .battery_critical = em_x270_battery_critical,
1137 };
1138
1139 #define DA9030_SUBDEV(_name, _id, _pdata) \
1140 { \
1141 .name = "da903x-" #_name, \
1142 .id = DA9030_ID_##_id, \
1143 .platform_data = _pdata, \
1144 }
1145
1146 #define DA9030_LDO(num) DA9030_SUBDEV(regulator, LDO##num, &ldo##num##_data)
1147
1148 struct da903x_subdev_info em_x270_da9030_subdevs[] = {
1149 DA9030_LDO(3),
1150 DA9030_LDO(5),
1151 DA9030_LDO(10),
1152 DA9030_LDO(12),
1153 DA9030_LDO(19),
1154
1155 DA9030_SUBDEV(regulator, BUCK2, &buck2_data),
1156
1157 DA9030_SUBDEV(led, LED_PC, &em_x270_led_info),
1158 DA9030_SUBDEV(backlight, WLED, &em_x270_led_info),
1159 DA9030_SUBDEV(battery, BAT, &em_x270_batterty_info),
1160 };
1161
1162 static struct da903x_platform_data em_x270_da9030_info = {
1163 .num_subdevs = ARRAY_SIZE(em_x270_da9030_subdevs),
1164 .subdevs = em_x270_da9030_subdevs,
1165 };
1166
1167 static struct i2c_board_info em_x270_i2c_pmic_info = {
1168 I2C_BOARD_INFO("da9030", 0x49),
1169 .irq = PXA_GPIO_TO_IRQ(0),
1170 .platform_data = &em_x270_da9030_info,
1171 };
1172
1173 static struct i2c_pxa_platform_data em_x270_pwr_i2c_info = {
1174 .use_pio = 1,
1175 };
1176
1177 static void __init em_x270_init_da9030(void)
1178 {
1179 pxa27x_set_i2c_power_info(&em_x270_pwr_i2c_info);
1180 i2c_register_board_info(1, &em_x270_i2c_pmic_info, 1);
1181 }
1182
1183 static struct pca953x_platform_data exeda_gpio_ext_pdata = {
1184 .gpio_base = 128,
1185 };
1186
1187 static struct i2c_board_info exeda_i2c_info[] = {
1188 {
1189 I2C_BOARD_INFO("pca9555", 0x21),
1190 .platform_data = &exeda_gpio_ext_pdata,
1191 },
1192 };
1193
1194 static struct i2c_pxa_platform_data em_x270_i2c_info = {
1195 .fast_mode = 1,
1196 };
1197
1198 static void __init em_x270_init_i2c(void)
1199 {
1200 pxa_set_i2c_info(&em_x270_i2c_info);
1201
1202 if (machine_is_exeda())
1203 i2c_register_board_info(0, ARRAY_AND_SIZE(exeda_i2c_info));
1204 }
1205
1206 static void __init em_x270_module_init(void)
1207 {
1208 pxa2xx_mfp_config(ARRAY_AND_SIZE(em_x270_pin_config));
1209
1210 mmc_cd = GPIO13_MMC_CD;
1211 nand_rb = GPIO56_NAND_RB;
1212 dm9000_flags = DM9000_PLATF_32BITONLY;
1213 cam_reset = GPIO93_CAM_RESET;
1214 usb_hub_reset = GPIO16_USB_HUB_RESET;
1215 }
1216
1217 static void __init em_x270_exeda_init(void)
1218 {
1219 pxa2xx_mfp_config(ARRAY_AND_SIZE(exeda_pin_config));
1220
1221 mmc_cd = GPIO114_MMC_CD;
1222 nand_rb = GPIO20_NAND_RB;
1223 dm9000_flags = DM9000_PLATF_16BITONLY;
1224 cam_reset = GPIO130_CAM_RESET;
1225 usb_hub_reset = GPIO10_USB_HUB_RESET;
1226 }
1227
1228 static void __init em_x270_init(void)
1229 {
1230 pxa2xx_mfp_config(ARRAY_AND_SIZE(common_pin_config));
1231
1232 pxa_set_ffuart_info(NULL);
1233 pxa_set_btuart_info(NULL);
1234 pxa_set_stuart_info(NULL);
1235
1236 #ifdef CONFIG_PM
1237 pxa27x_set_pwrmode(PWRMODE_DEEPSLEEP);
1238 #endif
1239
1240 if (machine_is_em_x270())
1241 em_x270_module_init();
1242 else if (machine_is_exeda())
1243 em_x270_exeda_init();
1244 else
1245 panic("Unsupported machine: %d\n", machine_arch_type);
1246
1247 em_x270_init_da9030();
1248 em_x270_init_dm9000();
1249 em_x270_init_rtc();
1250 em_x270_init_nand();
1251 em_x270_init_nor();
1252 em_x270_init_lcd();
1253 em_x270_init_mmc();
1254 em_x270_init_ohci();
1255 em_x270_init_keypad();
1256 em_x270_init_gpio_keys();
1257 em_x270_init_ac97();
1258 em_x270_init_spi();
1259 em_x270_init_i2c();
1260 em_x270_init_camera();
1261 em_x270_userspace_consumers_init();
1262
1263 regulator_has_full_constraints();
1264 }
1265
1266 MACHINE_START(EM_X270, "Compulab EM-X270")
1267 .atag_offset = 0x100,
1268 .map_io = pxa27x_map_io,
1269 .nr_irqs = PXA_NR_IRQS,
1270 .init_irq = pxa27x_init_irq,
1271 .handle_irq = pxa27x_handle_irq,
1272 .init_time = pxa_timer_init,
1273 .init_machine = em_x270_init,
1274 .restart = pxa_restart,
1275 MACHINE_END
1276
1277 MACHINE_START(EXEDA, "Compulab eXeda")
1278 .atag_offset = 0x100,
1279 .map_io = pxa27x_map_io,
1280 .nr_irqs = PXA_NR_IRQS,
1281 .init_irq = pxa27x_init_irq,
1282 .handle_irq = pxa27x_handle_irq,
1283 .init_time = pxa_timer_init,
1284 .init_machine = em_x270_init,
1285 .restart = pxa_restart,
1286 MACHINE_END
Linux with added FPC-III support