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Linux 4.19-rc7
[linux-2.6/btrfs-unstable.git] / arch / arm / mach-pxa / mainstone.c
blobafd62a94fdbf2d65d1a009782e9fe267132626ab
1 /*
2 * linux/arch/arm/mach-pxa/mainstone.c
3 *
4 * Support for the Intel HCDDBBVA0 Development Platform.
5 * (go figure how they came up with such name...)
6 *
7 * Author: Nicolas Pitre
8 * Created: Nov 05, 2002
9 * Copyright: MontaVista Software Inc.
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 #include <linux/gpio.h>
16 #include <linux/gpio/machine.h>
17 #include <linux/init.h>
18 #include <linux/platform_device.h>
19 #include <linux/syscore_ops.h>
20 #include <linux/interrupt.h>
21 #include <linux/sched.h>
22 #include <linux/bitops.h>
23 #include <linux/fb.h>
24 #include <linux/ioport.h>
25 #include <linux/mtd/mtd.h>
26 #include <linux/mtd/partitions.h>
27 #include <linux/input.h>
28 #include <linux/gpio_keys.h>
29 #include <linux/pwm.h>
30 #include <linux/pwm_backlight.h>
31 #include <linux/smc91x.h>
32 #include <linux/platform_data/i2c-pxa.h>
33 #include <linux/slab.h>
34 #include <linux/leds.h>
35
36 #include <asm/types.h>
37 #include <asm/setup.h>
38 #include <asm/memory.h>
39 #include <asm/mach-types.h>
40 #include <mach/hardware.h>
41 #include <asm/irq.h>
42 #include <asm/sizes.h>
43
44 #include <asm/mach/arch.h>
45 #include <asm/mach/map.h>
46 #include <asm/mach/irq.h>
47 #include <asm/mach/flash.h>
48
49 #include "pxa27x.h"
50 #include <mach/mainstone.h>
51 #include <mach/audio.h>
52 #include <linux/platform_data/video-pxafb.h>
53 #include <linux/platform_data/mmc-pxamci.h>
54 #include <linux/platform_data/irda-pxaficp.h>
55 #include <linux/platform_data/usb-ohci-pxa27x.h>
56 #include <linux/platform_data/keypad-pxa27x.h>
57 #include <mach/smemc.h>
58
59 #include "generic.h"
60 #include "devices.h"
61
62 static unsigned long mainstone_pin_config[] = {
63 /* Chip Select */
64 GPIO15_nCS_1,
65
66 /* LCD - 16bpp Active TFT */
67 GPIOxx_LCD_TFT_16BPP,
68 GPIO16_PWM0_OUT, /* Backlight */
69
70 /* MMC */
71 GPIO32_MMC_CLK,
72 GPIO112_MMC_CMD,
73 GPIO92_MMC_DAT_0,
74 GPIO109_MMC_DAT_1,
75 GPIO110_MMC_DAT_2,
76 GPIO111_MMC_DAT_3,
77
78 /* USB Host Port 1 */
79 GPIO88_USBH1_PWR,
80 GPIO89_USBH1_PEN,
81
82 /* PC Card */
83 GPIO48_nPOE,
84 GPIO49_nPWE,
85 GPIO50_nPIOR,
86 GPIO51_nPIOW,
87 GPIO85_nPCE_1,
88 GPIO54_nPCE_2,
89 GPIO79_PSKTSEL,
90 GPIO55_nPREG,
91 GPIO56_nPWAIT,
92 GPIO57_nIOIS16,
93
94 /* AC97 */
95 GPIO28_AC97_BITCLK,
96 GPIO29_AC97_SDATA_IN_0,
97 GPIO30_AC97_SDATA_OUT,
98 GPIO31_AC97_SYNC,
99 GPIO45_AC97_SYSCLK,
100
101 /* Keypad */
102 GPIO93_KP_DKIN_0,
103 GPIO94_KP_DKIN_1,
104 GPIO95_KP_DKIN_2,
105 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
106 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
107 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
108 GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
109 GPIO98_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
110 GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
111 GPIO103_KP_MKOUT_0,
112 GPIO104_KP_MKOUT_1,
113 GPIO105_KP_MKOUT_2,
114 GPIO106_KP_MKOUT_3,
115 GPIO107_KP_MKOUT_4,
116 GPIO108_KP_MKOUT_5,
117 GPIO96_KP_MKOUT_6,
118
119 /* I2C */
120 GPIO117_I2C_SCL,
121 GPIO118_I2C_SDA,
122
123 /* GPIO */
124 GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
125 };
126
127 static struct resource smc91x_resources[] = {
128 [0] = {
129 .start = (MST_ETH_PHYS + 0x300),
130 .end = (MST_ETH_PHYS + 0xfffff),
131 .flags = IORESOURCE_MEM,
132 },
133 [1] = {
134 .start = MAINSTONE_IRQ(3),
135 .end = MAINSTONE_IRQ(3),
136 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
137 }
138 };
139
140 static struct smc91x_platdata mainstone_smc91x_info = {
141 .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
142 SMC91X_NOWAIT | SMC91X_USE_DMA,
143 .pxa_u16_align4 = true,
144 };
145
146 static struct platform_device smc91x_device = {
147 .name = "smc91x",
148 .id = 0,
149 .num_resources = ARRAY_SIZE(smc91x_resources),
150 .resource = smc91x_resources,
151 .dev = {
152 .platform_data = &mainstone_smc91x_info,
153 },
154 };
155
156 static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
157 {
158 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
159 MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
160 return 0;
161 }
162
163 static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv)
164 {
165 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
166 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
167 }
168
169 static long mst_audio_suspend_mask;
170
171 static void mst_audio_suspend(void *priv)
172 {
173 mst_audio_suspend_mask = MST_MSCWR2;
174 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
175 }
176
177 static void mst_audio_resume(void *priv)
178 {
179 MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
180 }
181
182 static pxa2xx_audio_ops_t mst_audio_ops = {
183 .startup = mst_audio_startup,
184 .shutdown = mst_audio_shutdown,
185 .suspend = mst_audio_suspend,
186 .resume = mst_audio_resume,
187 };
188
189 static struct resource flash_resources[] = {
190 [0] = {
191 .start = PXA_CS0_PHYS,
192 .end = PXA_CS0_PHYS + SZ_64M - 1,
193 .flags = IORESOURCE_MEM,
194 },
195 [1] = {
196 .start = PXA_CS1_PHYS,
197 .end = PXA_CS1_PHYS + SZ_64M - 1,
198 .flags = IORESOURCE_MEM,
199 },
200 };
201
202 static struct mtd_partition mainstoneflash0_partitions[] = {
203 {
204 .name = "Bootloader",
205 .size = 0x00040000,
206 .offset = 0,
207 .mask_flags = MTD_WRITEABLE /* force read-only */
208 },{
209 .name = "Kernel",
210 .size = 0x00400000,
211 .offset = 0x00040000,
212 },{
213 .name = "Filesystem",
214 .size = MTDPART_SIZ_FULL,
215 .offset = 0x00440000
216 }
217 };
218
219 static struct flash_platform_data mst_flash_data[2] = {
220 {
221 .map_name = "cfi_probe",
222 .parts = mainstoneflash0_partitions,
223 .nr_parts = ARRAY_SIZE(mainstoneflash0_partitions),
224 }, {
225 .map_name = "cfi_probe",
226 .parts = NULL,
227 .nr_parts = 0,
228 }
229 };
230
231 static struct platform_device mst_flash_device[2] = {
232 {
233 .name = "pxa2xx-flash",
234 .id = 0,
235 .dev = {
236 .platform_data = &mst_flash_data[0],
237 },
238 .resource = &flash_resources[0],
239 .num_resources = 1,
240 },
241 {
242 .name = "pxa2xx-flash",
243 .id = 1,
244 .dev = {
245 .platform_data = &mst_flash_data[1],
246 },
247 .resource = &flash_resources[1],
248 .num_resources = 1,
249 },
250 };
251
252 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
253 static struct pwm_lookup mainstone_pwm_lookup[] = {
254 PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 78770,
255 PWM_POLARITY_NORMAL),
256 };
257
258 static struct platform_pwm_backlight_data mainstone_backlight_data = {
259 .max_brightness = 1023,
260 .dft_brightness = 1023,
261 .enable_gpio = -1,
262 };
263
264 static struct platform_device mainstone_backlight_device = {
265 .name = "pwm-backlight",
266 .dev = {
267 .parent = &pxa27x_device_pwm0.dev,
268 .platform_data = &mainstone_backlight_data,
269 },
270 };
271
272 static void __init mainstone_backlight_register(void)
273 {
274 int ret;
275
276 pwm_add_table(mainstone_pwm_lookup, ARRAY_SIZE(mainstone_pwm_lookup));
277
278 ret = platform_device_register(&mainstone_backlight_device);
279 if (ret) {
280 printk(KERN_ERR "mainstone: failed to register backlight device: %d\n", ret);
281 pwm_remove_table(mainstone_pwm_lookup,
282 ARRAY_SIZE(mainstone_pwm_lookup));
283 }
284 }
285 #else
286 #define mainstone_backlight_register() do { } while (0)
287 #endif
288
289 static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
290 .pixclock = 50000,
291 .xres = 640,
292 .yres = 480,
293 .bpp = 16,
294 .hsync_len = 1,
295 .left_margin = 0x9f,
296 .right_margin = 1,
297 .vsync_len = 44,
298 .upper_margin = 0,
299 .lower_margin = 0,
300 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
301 };
302
303 static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
304 .pixclock = 110000,
305 .xres = 240,
306 .yres = 320,
307 .bpp = 16,
308 .hsync_len = 4,
309 .left_margin = 8,
310 .right_margin = 20,
311 .vsync_len = 3,
312 .upper_margin = 1,
313 .lower_margin = 10,
314 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
315 };
316
317 static struct pxafb_mach_info mainstone_pxafb_info = {
318 .num_modes = 1,
319 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
320 };
321
322 static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data)
323 {
324 int err;
325
326 /* make sure SD/Memory Stick multiplexer's signals
327 * are routed to MMC controller
328 */
329 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
330
331 err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, 0,
332 "MMC card detect", data);
333 if (err)
334 printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
335
336 return err;
337 }
338
339 static int mainstone_mci_setpower(struct device *dev, unsigned int vdd)
340 {
341 struct pxamci_platform_data* p_d = dev->platform_data;
342
343 if (( 1 << vdd) & p_d->ocr_mask) {
344 printk(KERN_DEBUG "%s: on\n", __func__);
345 MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
346 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
347 } else {
348 printk(KERN_DEBUG "%s: off\n", __func__);
349 MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
350 }
351 return 0;
352 }
353
354 static void mainstone_mci_exit(struct device *dev, void *data)
355 {
356 free_irq(MAINSTONE_MMC_IRQ, data);
357 }
358
359 static struct pxamci_platform_data mainstone_mci_platform_data = {
360 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
361 .init = mainstone_mci_init,
362 .setpower = mainstone_mci_setpower,
363 .exit = mainstone_mci_exit,
364 .gpio_card_detect = -1,
365 .gpio_card_ro = -1,
366 .gpio_power = -1,
367 };
368
369 static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
370 {
371 unsigned long flags;
372
373 local_irq_save(flags);
374 if (mode & IR_SIRMODE) {
375 MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR;
376 } else if (mode & IR_FIRMODE) {
377 MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR;
378 }
379 pxa2xx_transceiver_mode(dev, mode);
380 if (mode & IR_OFF) {
381 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
382 } else {
383 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL;
384 }
385 local_irq_restore(flags);
386 }
387
388 static struct pxaficp_platform_data mainstone_ficp_platform_data = {
389 .gpio_pwdown = -1,
390 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
391 .transceiver_mode = mainstone_irda_transceiver_mode,
392 };
393
394 static struct gpio_keys_button gpio_keys_button[] = {
395 [0] = {
396 .desc = "wakeup",
397 .code = KEY_SUSPEND,
398 .type = EV_KEY,
399 .gpio = 1,
400 .wakeup = 1,
401 },
402 };
403
404 static struct gpio_keys_platform_data mainstone_gpio_keys = {
405 .buttons = gpio_keys_button,
406 .nbuttons = 1,
407 };
408
409 static struct platform_device mst_gpio_keys_device = {
410 .name = "gpio-keys",
411 .id = -1,
412 .dev = {
413 .platform_data = &mainstone_gpio_keys,
414 },
415 };
416
417 static struct resource mst_cplds_resources[] = {
418 [0] = {
419 .start = MST_FPGA_PHYS + 0xc0,
420 .end = MST_FPGA_PHYS + 0xe0 - 1,
421 .flags = IORESOURCE_MEM,
422 },
423 [1] = {
424 .start = PXA_GPIO_TO_IRQ(0),
425 .end = PXA_GPIO_TO_IRQ(0),
426 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
427 },
428 [2] = {
429 .start = MAINSTONE_IRQ(0),
430 .end = MAINSTONE_IRQ(15),
431 .flags = IORESOURCE_IRQ,
432 },
433 };
434
435 static struct platform_device mst_cplds_device = {
436 .name = "pxa_cplds_irqs",
437 .id = -1,
438 .resource = &mst_cplds_resources[0],
439 .num_resources = 3,
440 };
441
442 static struct platform_device *platform_devices[] __initdata = {
443 &smc91x_device,
444 &mst_flash_device[0],
445 &mst_flash_device[1],
446 &mst_gpio_keys_device,
447 &mst_cplds_device,
448 };
449
450 static struct pxaohci_platform_data mainstone_ohci_platform_data = {
451 .port_mode = PMM_PERPORT_MODE,
452 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
453 };
454
455 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
456 static const unsigned int mainstone_matrix_keys[] = {
457 KEY(0, 0, KEY_A), KEY(1, 0, KEY_B), KEY(2, 0, KEY_C),
458 KEY(3, 0, KEY_D), KEY(4, 0, KEY_E), KEY(5, 0, KEY_F),
459 KEY(0, 1, KEY_G), KEY(1, 1, KEY_H), KEY(2, 1, KEY_I),
460 KEY(3, 1, KEY_J), KEY(4, 1, KEY_K), KEY(5, 1, KEY_L),
461 KEY(0, 2, KEY_M), KEY(1, 2, KEY_N), KEY(2, 2, KEY_O),
462 KEY(3, 2, KEY_P), KEY(4, 2, KEY_Q), KEY(5, 2, KEY_R),
463 KEY(0, 3, KEY_S), KEY(1, 3, KEY_T), KEY(2, 3, KEY_U),
464 KEY(3, 3, KEY_V), KEY(4, 3, KEY_W), KEY(5, 3, KEY_X),
465 KEY(2, 4, KEY_Y), KEY(3, 4, KEY_Z),
466
467 KEY(0, 4, KEY_DOT), /* . */
468 KEY(1, 4, KEY_CLOSE), /* @ */
469 KEY(4, 4, KEY_SLASH),
470 KEY(5, 4, KEY_BACKSLASH),
471 KEY(0, 5, KEY_HOME),
472 KEY(1, 5, KEY_LEFTSHIFT),
473 KEY(2, 5, KEY_SPACE),
474 KEY(3, 5, KEY_SPACE),
475 KEY(4, 5, KEY_ENTER),
476 KEY(5, 5, KEY_BACKSPACE),
477
478 KEY(0, 6, KEY_UP),
479 KEY(1, 6, KEY_DOWN),
480 KEY(2, 6, KEY_LEFT),
481 KEY(3, 6, KEY_RIGHT),
482 KEY(4, 6, KEY_SELECT),
483 };
484
485 static struct matrix_keymap_data mainstone_matrix_keymap_data = {
486 .keymap = mainstone_matrix_keys,
487 .keymap_size = ARRAY_SIZE(mainstone_matrix_keys),
488 };
489
490 struct pxa27x_keypad_platform_data mainstone_keypad_info = {
491 .matrix_key_rows = 6,
492 .matrix_key_cols = 7,
493 .matrix_keymap_data = &mainstone_matrix_keymap_data,
494
495 .enable_rotary0 = 1,
496 .rotary0_up_key = KEY_UP,
497 .rotary0_down_key = KEY_DOWN,
498
499 .debounce_interval = 30,
500 };
501
502 static void __init mainstone_init_keypad(void)
503 {
504 pxa_set_keypad_info(&mainstone_keypad_info);
505 }
506 #else
507 static inline void mainstone_init_keypad(void) {}
508 #endif
509
510 static void __init mainstone_init(void)
511 {
512 int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
513
514 pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config));
515
516 pxa_set_ffuart_info(NULL);
517 pxa_set_btuart_info(NULL);
518 pxa_set_stuart_info(NULL);
519
520 mst_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
521 mst_flash_data[1].width = 4;
522
523 /* Compensate for SW7 which swaps the flash banks */
524 mst_flash_data[SW7].name = "processor-flash";
525 mst_flash_data[SW7 ^ 1].name = "mainboard-flash";
526
527 printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
528 mst_flash_data[0].name);
529
530 /* system bus arbiter setting
531 * - Core_Park
532 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
533 */
534 ARB_CNTRL = ARB_CORE_PARK | 0x234;
535
536 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
537
538 /* reading Mainstone's "Virtual Configuration Register"
539 might be handy to select LCD type here */
540 if (0)
541 mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode;
542 else
543 mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode;
544
545 pxa_set_fb_info(NULL, &mainstone_pxafb_info);
546 mainstone_backlight_register();
547
548 pxa_set_mci_info(&mainstone_mci_platform_data);
549 pxa_set_ficp_info(&mainstone_ficp_platform_data);
550 pxa_set_ohci_info(&mainstone_ohci_platform_data);
551 pxa_set_i2c_info(NULL);
552 pxa_set_ac97_info(&mst_audio_ops);
553
554 mainstone_init_keypad();
555 }
556
557
558 static struct map_desc mainstone_io_desc[] __initdata = {
559 { /* CPLD */
560 .virtual = MST_FPGA_VIRT,
561 .pfn = __phys_to_pfn(MST_FPGA_PHYS),
562 .length = 0x00100000,
563 .type = MT_DEVICE
564 }
565 };
566
567 static void __init mainstone_map_io(void)
568 {
569 pxa27x_map_io();
570 iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
571
572 /* for use I SRAM as framebuffer. */
573 PSLR |= 0xF04;
574 PCFR = 0x66;
575 }
576
577 /*
578 * Driver for the 8 discrete LEDs available for general use:
579 * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
580 * so be sure to not monkey with them here.
581 */
582
583 #if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
584 struct mainstone_led {
585 struct led_classdev cdev;
586 u8 mask;
587 };
588
589 /*
590 * The triggers lines up below will only be used if the
591 * LED triggers are compiled in.
592 */
593 static const struct {
594 const char *name;
595 const char *trigger;
596 } mainstone_leds[] = {
597 { "mainstone:D28", "default-on", },
598 { "mainstone:D27", "cpu0", },
599 { "mainstone:D26", "heartbeat" },
600 { "mainstone:D25", },
601 { "mainstone:D24", },
602 { "mainstone:D23", },
603 { "mainstone:D22", },
604 { "mainstone:D21", },
605 };
606
607 static void mainstone_led_set(struct led_classdev *cdev,
608 enum led_brightness b)
609 {
610 struct mainstone_led *led = container_of(cdev,
611 struct mainstone_led, cdev);
612 u32 reg = MST_LEDCTRL;
613
614 if (b != LED_OFF)
615 reg |= led->mask;
616 else
617 reg &= ~led->mask;
618
619 MST_LEDCTRL = reg;
620 }
621
622 static enum led_brightness mainstone_led_get(struct led_classdev *cdev)
623 {
624 struct mainstone_led *led = container_of(cdev,
625 struct mainstone_led, cdev);
626 u32 reg = MST_LEDCTRL;
627
628 return (reg & led->mask) ? LED_FULL : LED_OFF;
629 }
630
631 static int __init mainstone_leds_init(void)
632 {
633 int i;
634
635 if (!machine_is_mainstone())
636 return -ENODEV;
637
638 /* All ON */
639 MST_LEDCTRL |= 0xff;
640 for (i = 0; i < ARRAY_SIZE(mainstone_leds); i++) {
641 struct mainstone_led *led;
642
643 led = kzalloc(sizeof(*led), GFP_KERNEL);
644 if (!led)
645 break;
646
647 led->cdev.name = mainstone_leds[i].name;
648 led->cdev.brightness_set = mainstone_led_set;
649 led->cdev.brightness_get = mainstone_led_get;
650 led->cdev.default_trigger = mainstone_leds[i].trigger;
651 led->mask = BIT(i);
652
653 if (led_classdev_register(NULL, &led->cdev) < 0) {
654 kfree(led);
655 break;
656 }
657 }
658
659 return 0;
660 }
661
662 /*
663 * Since we may have triggers on any subsystem, defer registration
664 * until after subsystem_init.
665 */
666 fs_initcall(mainstone_leds_init);
667 #endif
668
669 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
670 /* Maintainer: MontaVista Software Inc. */
671 .atag_offset = 0x100, /* BLOB boot parameter setting */
672 .map_io = mainstone_map_io,
673 .nr_irqs = MAINSTONE_NR_IRQS,
674 .init_irq = pxa27x_init_irq,
675 .handle_irq = pxa27x_handle_irq,
676 .init_time = pxa_timer_init,
677 .init_machine = mainstone_init,
678 .restart = pxa_restart,
679 MACHINE_END
(deprecated) Btrfs devel tree