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mm: make wait_on_page_writeback() wait for multiple pending writebacks
[linux/fpc-iii.git] / arch / arm / mach-pxa / mainstone.c
blobd1010ec26e9f6d54e430f7e65c7d937e873ed83a
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-pxa/mainstone.c
4 *
5 * Support for the Intel HCDDBBVA0 Development Platform.
6 * (go figure how they came up with such name...)
7 *
8 * Author: Nicolas Pitre
9 * Created: Nov 05, 2002
10 * Copyright: MontaVista Software Inc.
11 */
12 #include <linux/gpio.h>
13 #include <linux/gpio/gpio-reg.h>
14 #include <linux/gpio/machine.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/syscore_ops.h>
18 #include <linux/interrupt.h>
19 #include <linux/sched.h>
20 #include <linux/bitops.h>
21 #include <linux/fb.h>
22 #include <linux/ioport.h>
23 #include <linux/mtd/mtd.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/input.h>
26 #include <linux/gpio_keys.h>
27 #include <linux/pwm.h>
28 #include <linux/pwm_backlight.h>
29 #include <linux/smc91x.h>
30 #include <linux/platform_data/i2c-pxa.h>
31 #include <linux/slab.h>
32 #include <linux/leds.h>
33
34 #include <asm/types.h>
35 #include <asm/setup.h>
36 #include <asm/memory.h>
37 #include <asm/mach-types.h>
38 #include <mach/hardware.h>
39 #include <asm/irq.h>
40 #include <linux/sizes.h>
41
42 #include <asm/mach/arch.h>
43 #include <asm/mach/map.h>
44 #include <asm/mach/irq.h>
45 #include <asm/mach/flash.h>
46
47 #include "pxa27x.h"
48 #include <mach/mainstone.h>
49 #include <mach/audio.h>
50 #include <linux/platform_data/video-pxafb.h>
51 #include <linux/platform_data/mmc-pxamci.h>
52 #include <linux/platform_data/irda-pxaficp.h>
53 #include <linux/platform_data/usb-ohci-pxa27x.h>
54 #include <linux/platform_data/keypad-pxa27x.h>
55 #include <mach/smemc.h>
56
57 #include "generic.h"
58 #include "devices.h"
59
60 static unsigned long mainstone_pin_config[] = {
61 /* Chip Select */
62 GPIO15_nCS_1,
63
64 /* LCD - 16bpp Active TFT */
65 GPIOxx_LCD_TFT_16BPP,
66 GPIO16_PWM0_OUT, /* Backlight */
67
68 /* MMC */
69 GPIO32_MMC_CLK,
70 GPIO112_MMC_CMD,
71 GPIO92_MMC_DAT_0,
72 GPIO109_MMC_DAT_1,
73 GPIO110_MMC_DAT_2,
74 GPIO111_MMC_DAT_3,
75
76 /* USB Host Port 1 */
77 GPIO88_USBH1_PWR,
78 GPIO89_USBH1_PEN,
79
80 /* PC Card */
81 GPIO48_nPOE,
82 GPIO49_nPWE,
83 GPIO50_nPIOR,
84 GPIO51_nPIOW,
85 GPIO85_nPCE_1,
86 GPIO54_nPCE_2,
87 GPIO79_PSKTSEL,
88 GPIO55_nPREG,
89 GPIO56_nPWAIT,
90 GPIO57_nIOIS16,
91
92 /* AC97 */
93 GPIO28_AC97_BITCLK,
94 GPIO29_AC97_SDATA_IN_0,
95 GPIO30_AC97_SDATA_OUT,
96 GPIO31_AC97_SYNC,
97 GPIO45_AC97_SYSCLK,
98
99 /* Keypad */
100 GPIO93_KP_DKIN_0,
101 GPIO94_KP_DKIN_1,
102 GPIO95_KP_DKIN_2,
103 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
104 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
105 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
106 GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
107 GPIO98_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
108 GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
109 GPIO103_KP_MKOUT_0,
110 GPIO104_KP_MKOUT_1,
111 GPIO105_KP_MKOUT_2,
112 GPIO106_KP_MKOUT_3,
113 GPIO107_KP_MKOUT_4,
114 GPIO108_KP_MKOUT_5,
115 GPIO96_KP_MKOUT_6,
116
117 /* I2C */
118 GPIO117_I2C_SCL,
119 GPIO118_I2C_SDA,
120
121 /* GPIO */
122 GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
123 };
124
125 static struct resource smc91x_resources[] = {
126 [0] = {
127 .start = (MST_ETH_PHYS + 0x300),
128 .end = (MST_ETH_PHYS + 0xfffff),
129 .flags = IORESOURCE_MEM,
130 },
131 [1] = {
132 .start = MAINSTONE_IRQ(3),
133 .end = MAINSTONE_IRQ(3),
134 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
135 }
136 };
137
138 static struct smc91x_platdata mainstone_smc91x_info = {
139 .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
140 SMC91X_NOWAIT | SMC91X_USE_DMA,
141 .pxa_u16_align4 = true,
142 };
143
144 static struct platform_device smc91x_device = {
145 .name = "smc91x",
146 .id = 0,
147 .num_resources = ARRAY_SIZE(smc91x_resources),
148 .resource = smc91x_resources,
149 .dev = {
150 .platform_data = &mainstone_smc91x_info,
151 },
152 };
153
154 static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
155 {
156 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
157 MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
158 return 0;
159 }
160
161 static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv)
162 {
163 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
164 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
165 }
166
167 static long mst_audio_suspend_mask;
168
169 static void mst_audio_suspend(void *priv)
170 {
171 mst_audio_suspend_mask = MST_MSCWR2;
172 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
173 }
174
175 static void mst_audio_resume(void *priv)
176 {
177 MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
178 }
179
180 static pxa2xx_audio_ops_t mst_audio_ops = {
181 .startup = mst_audio_startup,
182 .shutdown = mst_audio_shutdown,
183 .suspend = mst_audio_suspend,
184 .resume = mst_audio_resume,
185 };
186
187 static struct resource flash_resources[] = {
188 [0] = {
189 .start = PXA_CS0_PHYS,
190 .end = PXA_CS0_PHYS + SZ_64M - 1,
191 .flags = IORESOURCE_MEM,
192 },
193 [1] = {
194 .start = PXA_CS1_PHYS,
195 .end = PXA_CS1_PHYS + SZ_64M - 1,
196 .flags = IORESOURCE_MEM,
197 },
198 };
199
200 static struct mtd_partition mainstoneflash0_partitions[] = {
201 {
202 .name = "Bootloader",
203 .size = 0x00040000,
204 .offset = 0,
205 .mask_flags = MTD_WRITEABLE /* force read-only */
206 },{
207 .name = "Kernel",
208 .size = 0x00400000,
209 .offset = 0x00040000,
210 },{
211 .name = "Filesystem",
212 .size = MTDPART_SIZ_FULL,
213 .offset = 0x00440000
214 }
215 };
216
217 static struct flash_platform_data mst_flash_data[2] = {
218 {
219 .map_name = "cfi_probe",
220 .parts = mainstoneflash0_partitions,
221 .nr_parts = ARRAY_SIZE(mainstoneflash0_partitions),
222 }, {
223 .map_name = "cfi_probe",
224 .parts = NULL,
225 .nr_parts = 0,
226 }
227 };
228
229 static struct platform_device mst_flash_device[2] = {
230 {
231 .name = "pxa2xx-flash",
232 .id = 0,
233 .dev = {
234 .platform_data = &mst_flash_data[0],
235 },
236 .resource = &flash_resources[0],
237 .num_resources = 1,
238 },
239 {
240 .name = "pxa2xx-flash",
241 .id = 1,
242 .dev = {
243 .platform_data = &mst_flash_data[1],
244 },
245 .resource = &flash_resources[1],
246 .num_resources = 1,
247 },
248 };
249
250 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
251 static struct pwm_lookup mainstone_pwm_lookup[] = {
252 PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 78770,
253 PWM_POLARITY_NORMAL),
254 };
255
256 static struct platform_pwm_backlight_data mainstone_backlight_data = {
257 .max_brightness = 1023,
258 .dft_brightness = 1023,
259 };
260
261 static struct platform_device mainstone_backlight_device = {
262 .name = "pwm-backlight",
263 .dev = {
264 .parent = &pxa27x_device_pwm0.dev,
265 .platform_data = &mainstone_backlight_data,
266 },
267 };
268
269 static void __init mainstone_backlight_register(void)
270 {
271 int ret;
272
273 pwm_add_table(mainstone_pwm_lookup, ARRAY_SIZE(mainstone_pwm_lookup));
274
275 ret = platform_device_register(&mainstone_backlight_device);
276 if (ret) {
277 printk(KERN_ERR "mainstone: failed to register backlight device: %d\n", ret);
278 pwm_remove_table(mainstone_pwm_lookup,
279 ARRAY_SIZE(mainstone_pwm_lookup));
280 }
281 }
282 #else
283 #define mainstone_backlight_register() do { } while (0)
284 #endif
285
286 static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
287 .pixclock = 50000,
288 .xres = 640,
289 .yres = 480,
290 .bpp = 16,
291 .hsync_len = 1,
292 .left_margin = 0x9f,
293 .right_margin = 1,
294 .vsync_len = 44,
295 .upper_margin = 0,
296 .lower_margin = 0,
297 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
298 };
299
300 static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
301 .pixclock = 110000,
302 .xres = 240,
303 .yres = 320,
304 .bpp = 16,
305 .hsync_len = 4,
306 .left_margin = 8,
307 .right_margin = 20,
308 .vsync_len = 3,
309 .upper_margin = 1,
310 .lower_margin = 10,
311 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
312 };
313
314 static struct pxafb_mach_info mainstone_pxafb_info = {
315 .num_modes = 1,
316 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
317 };
318
319 static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data)
320 {
321 int err;
322
323 /* make sure SD/Memory Stick multiplexer's signals
324 * are routed to MMC controller
325 */
326 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
327
328 err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, 0,
329 "MMC card detect", data);
330 if (err)
331 printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
332
333 return err;
334 }
335
336 static int mainstone_mci_setpower(struct device *dev, unsigned int vdd)
337 {
338 struct pxamci_platform_data* p_d = dev->platform_data;
339
340 if (( 1 << vdd) & p_d->ocr_mask) {
341 printk(KERN_DEBUG "%s: on\n", __func__);
342 MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
343 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
344 } else {
345 printk(KERN_DEBUG "%s: off\n", __func__);
346 MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
347 }
348 return 0;
349 }
350
351 static void mainstone_mci_exit(struct device *dev, void *data)
352 {
353 free_irq(MAINSTONE_MMC_IRQ, data);
354 }
355
356 static struct pxamci_platform_data mainstone_mci_platform_data = {
357 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
358 .init = mainstone_mci_init,
359 .setpower = mainstone_mci_setpower,
360 .exit = mainstone_mci_exit,
361 };
362
363 static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
364 {
365 unsigned long flags;
366
367 local_irq_save(flags);
368 if (mode & IR_SIRMODE) {
369 MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR;
370 } else if (mode & IR_FIRMODE) {
371 MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR;
372 }
373 pxa2xx_transceiver_mode(dev, mode);
374 if (mode & IR_OFF) {
375 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
376 } else {
377 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL;
378 }
379 local_irq_restore(flags);
380 }
381
382 static struct pxaficp_platform_data mainstone_ficp_platform_data = {
383 .gpio_pwdown = -1,
384 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
385 .transceiver_mode = mainstone_irda_transceiver_mode,
386 };
387
388 static struct gpio_keys_button gpio_keys_button[] = {
389 [0] = {
390 .desc = "wakeup",
391 .code = KEY_SUSPEND,
392 .type = EV_KEY,
393 .gpio = 1,
394 .wakeup = 1,
395 },
396 };
397
398 static struct gpio_keys_platform_data mainstone_gpio_keys = {
399 .buttons = gpio_keys_button,
400 .nbuttons = 1,
401 };
402
403 static struct platform_device mst_gpio_keys_device = {
404 .name = "gpio-keys",
405 .id = -1,
406 .dev = {
407 .platform_data = &mainstone_gpio_keys,
408 },
409 };
410
411 static struct resource mst_cplds_resources[] = {
412 [0] = {
413 .start = MST_FPGA_PHYS + 0xc0,
414 .end = MST_FPGA_PHYS + 0xe0 - 1,
415 .flags = IORESOURCE_MEM,
416 },
417 [1] = {
418 .start = PXA_GPIO_TO_IRQ(0),
419 .end = PXA_GPIO_TO_IRQ(0),
420 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
421 },
422 [2] = {
423 .start = MAINSTONE_IRQ(0),
424 .end = MAINSTONE_IRQ(15),
425 .flags = IORESOURCE_IRQ,
426 },
427 };
428
429 static struct platform_device mst_cplds_device = {
430 .name = "pxa_cplds_irqs",
431 .id = -1,
432 .resource = &mst_cplds_resources[0],
433 .num_resources = 3,
434 };
435
436 static struct platform_device *platform_devices[] __initdata = {
437 &smc91x_device,
438 &mst_flash_device[0],
439 &mst_flash_device[1],
440 &mst_gpio_keys_device,
441 &mst_cplds_device,
442 };
443
444 static struct pxaohci_platform_data mainstone_ohci_platform_data = {
445 .port_mode = PMM_PERPORT_MODE,
446 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
447 };
448
449 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
450 static const unsigned int mainstone_matrix_keys[] = {
451 KEY(0, 0, KEY_A), KEY(1, 0, KEY_B), KEY(2, 0, KEY_C),
452 KEY(3, 0, KEY_D), KEY(4, 0, KEY_E), KEY(5, 0, KEY_F),
453 KEY(0, 1, KEY_G), KEY(1, 1, KEY_H), KEY(2, 1, KEY_I),
454 KEY(3, 1, KEY_J), KEY(4, 1, KEY_K), KEY(5, 1, KEY_L),
455 KEY(0, 2, KEY_M), KEY(1, 2, KEY_N), KEY(2, 2, KEY_O),
456 KEY(3, 2, KEY_P), KEY(4, 2, KEY_Q), KEY(5, 2, KEY_R),
457 KEY(0, 3, KEY_S), KEY(1, 3, KEY_T), KEY(2, 3, KEY_U),
458 KEY(3, 3, KEY_V), KEY(4, 3, KEY_W), KEY(5, 3, KEY_X),
459 KEY(2, 4, KEY_Y), KEY(3, 4, KEY_Z),
460
461 KEY(0, 4, KEY_DOT), /* . */
462 KEY(1, 4, KEY_CLOSE), /* @ */
463 KEY(4, 4, KEY_SLASH),
464 KEY(5, 4, KEY_BACKSLASH),
465 KEY(0, 5, KEY_HOME),
466 KEY(1, 5, KEY_LEFTSHIFT),
467 KEY(2, 5, KEY_SPACE),
468 KEY(3, 5, KEY_SPACE),
469 KEY(4, 5, KEY_ENTER),
470 KEY(5, 5, KEY_BACKSPACE),
471
472 KEY(0, 6, KEY_UP),
473 KEY(1, 6, KEY_DOWN),
474 KEY(2, 6, KEY_LEFT),
475 KEY(3, 6, KEY_RIGHT),
476 KEY(4, 6, KEY_SELECT),
477 };
478
479 static struct matrix_keymap_data mainstone_matrix_keymap_data = {
480 .keymap = mainstone_matrix_keys,
481 .keymap_size = ARRAY_SIZE(mainstone_matrix_keys),
482 };
483
484 struct pxa27x_keypad_platform_data mainstone_keypad_info = {
485 .matrix_key_rows = 6,
486 .matrix_key_cols = 7,
487 .matrix_keymap_data = &mainstone_matrix_keymap_data,
488
489 .enable_rotary0 = 1,
490 .rotary0_up_key = KEY_UP,
491 .rotary0_down_key = KEY_DOWN,
492
493 .debounce_interval = 30,
494 };
495
496 static void __init mainstone_init_keypad(void)
497 {
498 pxa_set_keypad_info(&mainstone_keypad_info);
499 }
500 #else
501 static inline void mainstone_init_keypad(void) {}
502 #endif
503
504 static int mst_pcmcia0_irqs[11] = {
505 [0 ... 10] = -1,
506 [5] = MAINSTONE_S0_CD_IRQ,
507 [8] = MAINSTONE_S0_STSCHG_IRQ,
508 [10] = MAINSTONE_S0_IRQ,
509 };
510
511 static int mst_pcmcia1_irqs[11] = {
512 [0 ... 10] = -1,
513 [5] = MAINSTONE_S1_CD_IRQ,
514 [8] = MAINSTONE_S1_STSCHG_IRQ,
515 [10] = MAINSTONE_S1_IRQ,
516 };
517
518 static struct gpiod_lookup_table mainstone_pcmcia_gpio_table = {
519 .dev_id = "pxa2xx-pcmcia",
520 .table = {
521 GPIO_LOOKUP("mst-pcmcia0", 0, "a0vpp", GPIO_ACTIVE_HIGH),
522 GPIO_LOOKUP("mst-pcmcia0", 1, "a1vpp", GPIO_ACTIVE_HIGH),
523 GPIO_LOOKUP("mst-pcmcia0", 2, "a0vcc", GPIO_ACTIVE_HIGH),
524 GPIO_LOOKUP("mst-pcmcia0", 3, "a1vcc", GPIO_ACTIVE_HIGH),
525 GPIO_LOOKUP("mst-pcmcia0", 4, "areset", GPIO_ACTIVE_HIGH),
526 GPIO_LOOKUP("mst-pcmcia0", 5, "adetect", GPIO_ACTIVE_LOW),
527 GPIO_LOOKUP("mst-pcmcia0", 6, "avs1", GPIO_ACTIVE_LOW),
528 GPIO_LOOKUP("mst-pcmcia0", 7, "avs2", GPIO_ACTIVE_LOW),
529 GPIO_LOOKUP("mst-pcmcia0", 8, "abvd1", GPIO_ACTIVE_HIGH),
530 GPIO_LOOKUP("mst-pcmcia0", 9, "abvd2", GPIO_ACTIVE_HIGH),
531 GPIO_LOOKUP("mst-pcmcia0", 10, "aready", GPIO_ACTIVE_HIGH),
532 GPIO_LOOKUP("mst-pcmcia1", 0, "b0vpp", GPIO_ACTIVE_HIGH),
533 GPIO_LOOKUP("mst-pcmcia1", 1, "b1vpp", GPIO_ACTIVE_HIGH),
534 GPIO_LOOKUP("mst-pcmcia1", 2, "b0vcc", GPIO_ACTIVE_HIGH),
535 GPIO_LOOKUP("mst-pcmcia1", 3, "b1vcc", GPIO_ACTIVE_HIGH),
536 GPIO_LOOKUP("mst-pcmcia1", 4, "breset", GPIO_ACTIVE_HIGH),
537 GPIO_LOOKUP("mst-pcmcia1", 5, "bdetect", GPIO_ACTIVE_LOW),
538 GPIO_LOOKUP("mst-pcmcia1", 6, "bvs1", GPIO_ACTIVE_LOW),
539 GPIO_LOOKUP("mst-pcmcia1", 7, "bvs2", GPIO_ACTIVE_LOW),
540 GPIO_LOOKUP("mst-pcmcia1", 8, "bbvd1", GPIO_ACTIVE_HIGH),
541 GPIO_LOOKUP("mst-pcmcia1", 9, "bbvd2", GPIO_ACTIVE_HIGH),
542 GPIO_LOOKUP("mst-pcmcia1", 10, "bready", GPIO_ACTIVE_HIGH),
543 { },
544 },
545 };
546
547 static void __init mainstone_init(void)
548 {
549 int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
550
551 pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config));
552
553 /* Register board control register(s) as GPIOs */
554 gpio_reg_init(NULL, (void __iomem *)&MST_PCMCIA0, -1, 11,
555 "mst-pcmcia0", MST_PCMCIA_INPUTS, 0, NULL,
556 NULL, mst_pcmcia0_irqs);
557 gpio_reg_init(NULL, (void __iomem *)&MST_PCMCIA1, -1, 11,
558 "mst-pcmcia1", MST_PCMCIA_INPUTS, 0, NULL,
559 NULL, mst_pcmcia1_irqs);
560 gpiod_add_lookup_table(&mainstone_pcmcia_gpio_table);
561
562 pxa_set_ffuart_info(NULL);
563 pxa_set_btuart_info(NULL);
564 pxa_set_stuart_info(NULL);
565
566 mst_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
567 mst_flash_data[1].width = 4;
568
569 /* Compensate for SW7 which swaps the flash banks */
570 mst_flash_data[SW7].name = "processor-flash";
571 mst_flash_data[SW7 ^ 1].name = "mainboard-flash";
572
573 printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
574 mst_flash_data[0].name);
575
576 /* system bus arbiter setting
577 * - Core_Park
578 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
579 */
580 ARB_CNTRL = ARB_CORE_PARK | 0x234;
581
582 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
583
584 /* reading Mainstone's "Virtual Configuration Register"
585 might be handy to select LCD type here */
586 if (0)
587 mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode;
588 else
589 mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode;
590
591 pxa_set_fb_info(NULL, &mainstone_pxafb_info);
592 mainstone_backlight_register();
593
594 pxa_set_mci_info(&mainstone_mci_platform_data);
595 pxa_set_ficp_info(&mainstone_ficp_platform_data);
596 pxa_set_ohci_info(&mainstone_ohci_platform_data);
597 pxa_set_i2c_info(NULL);
598 pxa_set_ac97_info(&mst_audio_ops);
599
600 mainstone_init_keypad();
601 }
602
603
604 static struct map_desc mainstone_io_desc[] __initdata = {
605 { /* CPLD */
606 .virtual = MST_FPGA_VIRT,
607 .pfn = __phys_to_pfn(MST_FPGA_PHYS),
608 .length = 0x00100000,
609 .type = MT_DEVICE
610 }
611 };
612
613 static void __init mainstone_map_io(void)
614 {
615 pxa27x_map_io();
616 iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
617
618 /* for use I SRAM as framebuffer. */
619 PSLR |= 0xF04;
620 PCFR = 0x66;
621 }
622
623 /*
624 * Driver for the 8 discrete LEDs available for general use:
625 * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
626 * so be sure to not monkey with them here.
627 */
628
629 #if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
630 struct mainstone_led {
631 struct led_classdev cdev;
632 u8 mask;
633 };
634
635 /*
636 * The triggers lines up below will only be used if the
637 * LED triggers are compiled in.
638 */
639 static const struct {
640 const char *name;
641 const char *trigger;
642 } mainstone_leds[] = {
643 { "mainstone:D28", "default-on", },
644 { "mainstone:D27", "cpu0", },
645 { "mainstone:D26", "heartbeat" },
646 { "mainstone:D25", },
647 { "mainstone:D24", },
648 { "mainstone:D23", },
649 { "mainstone:D22", },
650 { "mainstone:D21", },
651 };
652
653 static void mainstone_led_set(struct led_classdev *cdev,
654 enum led_brightness b)
655 {
656 struct mainstone_led *led = container_of(cdev,
657 struct mainstone_led, cdev);
658 u32 reg = MST_LEDCTRL;
659
660 if (b != LED_OFF)
661 reg |= led->mask;
662 else
663 reg &= ~led->mask;
664
665 MST_LEDCTRL = reg;
666 }
667
668 static enum led_brightness mainstone_led_get(struct led_classdev *cdev)
669 {
670 struct mainstone_led *led = container_of(cdev,
671 struct mainstone_led, cdev);
672 u32 reg = MST_LEDCTRL;
673
674 return (reg & led->mask) ? LED_FULL : LED_OFF;
675 }
676
677 static int __init mainstone_leds_init(void)
678 {
679 int i;
680
681 if (!machine_is_mainstone())
682 return -ENODEV;
683
684 /* All ON */
685 MST_LEDCTRL |= 0xff;
686 for (i = 0; i < ARRAY_SIZE(mainstone_leds); i++) {
687 struct mainstone_led *led;
688
689 led = kzalloc(sizeof(*led), GFP_KERNEL);
690 if (!led)
691 break;
692
693 led->cdev.name = mainstone_leds[i].name;
694 led->cdev.brightness_set = mainstone_led_set;
695 led->cdev.brightness_get = mainstone_led_get;
696 led->cdev.default_trigger = mainstone_leds[i].trigger;
697 led->mask = BIT(i);
698
699 if (led_classdev_register(NULL, &led->cdev) < 0) {
700 kfree(led);
701 break;
702 }
703 }
704
705 return 0;
706 }
707
708 /*
709 * Since we may have triggers on any subsystem, defer registration
710 * until after subsystem_init.
711 */
712 fs_initcall(mainstone_leds_init);
713 #endif
714
715 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
716 /* Maintainer: MontaVista Software Inc. */
717 .atag_offset = 0x100, /* BLOB boot parameter setting */
718 .map_io = mainstone_map_io,
719 .nr_irqs = MAINSTONE_NR_IRQS,
720 .init_irq = pxa27x_init_irq,
721 .handle_irq = pxa27x_handle_irq,
722 .init_time = pxa_timer_init,
723 .init_machine = mainstone_init,
724 .restart = pxa_restart,
725 MACHINE_END
Linux with added FPC-III support