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2a23ec36 JM |
1 | /* |
2 | * linux/arch/arm/mach-pxa/balloon3.c | |
3 | * | |
4 | * Support for Balloonboard.org Balloon3 board. | |
5 | * | |
6 | * Author: Nick Bane, Wookey, Jonathan McDowell | |
7 | * Created: June, 2006 | |
8 | * Copyright: Toby Churchill Ltd | |
9 | * Derived from mainstone.c, by Nico Pitre | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
15 | ||
16 | #include <linux/init.h> | |
17 | #include <linux/platform_device.h> | |
18 | #include <linux/sysdev.h> | |
19 | #include <linux/interrupt.h> | |
20 | #include <linux/sched.h> | |
21 | #include <linux/bitops.h> | |
22 | #include <linux/fb.h> | |
23 | #include <linux/gpio.h> | |
24 | #include <linux/ioport.h> | |
12a2449c | 25 | #include <linux/ucb1400.h> |
2a23ec36 JM |
26 | #include <linux/mtd/mtd.h> |
27 | #include <linux/mtd/partitions.h> | |
28 | #include <linux/types.h> | |
02a453e4 | 29 | #include <linux/i2c/pcf857x.h> |
e6a8ef54 MV |
30 | #include <linux/mtd/nand.h> |
31 | #include <linux/mtd/physmap.h> | |
3a27f6e0 | 32 | #include <linux/regulator/max1586.h> |
2a23ec36 JM |
33 | |
34 | #include <asm/setup.h> | |
35 | #include <asm/mach-types.h> | |
36 | #include <asm/irq.h> | |
37 | #include <asm/sizes.h> | |
38 | ||
39 | #include <asm/mach/arch.h> | |
40 | #include <asm/mach/map.h> | |
41 | #include <asm/mach/irq.h> | |
42 | #include <asm/mach/flash.h> | |
43 | ||
44 | #include <mach/pxa27x.h> | |
45 | #include <mach/balloon3.h> | |
46 | #include <mach/audio.h> | |
47 | #include <mach/pxafb.h> | |
48 | #include <mach/mmc.h> | |
49 | #include <mach/udc.h> | |
50 | #include <mach/pxa27x-udc.h> | |
51 | #include <mach/irda.h> | |
52 | #include <mach/ohci.h> | |
53 | ||
54 | #include <plat/i2c.h> | |
55 | ||
56 | #include "generic.h" | |
57 | #include "devices.h" | |
58 | ||
b0240bf4 MV |
59 | /****************************************************************************** |
60 | * Pin configuration | |
61 | ******************************************************************************/ | |
62 | static unsigned long balloon3_pin_config[] __initdata = { | |
63 | /* Select BTUART 'COM1/ttyS0' as IO option for pins 42/43/44/45 */ | |
64 | GPIO42_BTUART_RXD, | |
65 | GPIO43_BTUART_TXD, | |
66 | GPIO44_BTUART_CTS, | |
67 | GPIO45_BTUART_RTS, | |
2a23ec36 | 68 | |
12a2449c | 69 | /* Reset, configured as GPIO wakeup source */ |
b0240bf4 | 70 | GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH, |
c11b6a42 EM |
71 | }; |
72 | ||
b0240bf4 | 73 | /****************************************************************************** |
12a2449c | 74 | * Compatibility: Parameter parsing |
b0240bf4 | 75 | ******************************************************************************/ |
12a2449c | 76 | static unsigned long balloon3_irq_enabled; |
b0240bf4 | 77 | |
12a2449c MV |
78 | static unsigned long balloon3_features_present = |
79 | (1 << BALLOON3_FEATURE_OHCI) | (1 << BALLOON3_FEATURE_CF) | | |
80 | (1 << BALLOON3_FEATURE_AUDIO) | | |
81 | (1 << BALLOON3_FEATURE_TOPPOLY); | |
82 | ||
83 | int balloon3_has(enum balloon3_features feature) | |
2a23ec36 | 84 | { |
12a2449c MV |
85 | return (balloon3_features_present & (1 << feature)) ? 1 : 0; |
86 | } | |
87 | EXPORT_SYMBOL_GPL(balloon3_has); | |
88 | ||
89 | int __init parse_balloon3_features(char *arg) | |
90 | { | |
91 | if (!arg) | |
92 | return 0; | |
93 | ||
94 | return strict_strtoul(arg, 0, &balloon3_features_present); | |
2a23ec36 | 95 | } |
12a2449c | 96 | early_param("balloon3_features", parse_balloon3_features); |
2a23ec36 | 97 | |
b476ef05 MV |
98 | /****************************************************************************** |
99 | * Compact Flash slot | |
100 | ******************************************************************************/ | |
101 | #if defined(CONFIG_PCMCIA_PXA2XX) || defined(CONFIG_PCMCIA_PXA2XX_MODULE) | |
102 | static unsigned long balloon3_cf_pin_config[] __initdata = { | |
103 | GPIO48_nPOE, | |
104 | GPIO49_nPWE, | |
105 | GPIO50_nPIOR, | |
106 | GPIO51_nPIOW, | |
107 | GPIO85_nPCE_1, | |
108 | GPIO54_nPCE_2, | |
109 | GPIO79_PSKTSEL, | |
110 | GPIO55_nPREG, | |
111 | GPIO56_nPWAIT, | |
112 | GPIO57_nIOIS16, | |
113 | }; | |
114 | ||
115 | static void __init balloon3_cf_init(void) | |
116 | { | |
117 | if (!balloon3_has(BALLOON3_FEATURE_CF)) | |
118 | return; | |
119 | ||
120 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_cf_pin_config)); | |
121 | } | |
122 | #else | |
123 | static inline void balloon3_cf_init(void) {} | |
124 | #endif | |
125 | ||
12a2449c MV |
126 | /****************************************************************************** |
127 | * NOR Flash | |
128 | ******************************************************************************/ | |
129 | #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE) | |
130 | static struct mtd_partition balloon3_nor_partitions[] = { | |
131 | { | |
132 | .name = "Flash", | |
133 | .offset = 0x00000000, | |
134 | .size = MTDPART_SIZ_FULL, | |
135 | } | |
136 | }; | |
137 | ||
138 | static struct physmap_flash_data balloon3_flash_data[] = { | |
139 | { | |
140 | .width = 2, /* bankwidth in bytes */ | |
141 | .parts = balloon3_nor_partitions, | |
142 | .nr_parts = ARRAY_SIZE(balloon3_nor_partitions) | |
143 | } | |
144 | }; | |
145 | ||
146 | static struct resource balloon3_flash_resource = { | |
147 | .start = PXA_CS0_PHYS, | |
148 | .end = PXA_CS0_PHYS + SZ_64M - 1, | |
149 | .flags = IORESOURCE_MEM, | |
150 | }; | |
151 | ||
152 | static struct platform_device balloon3_flash = { | |
153 | .name = "physmap-flash", | |
154 | .id = 0, | |
155 | .resource = &balloon3_flash_resource, | |
156 | .num_resources = 1, | |
157 | .dev = { | |
158 | .platform_data = balloon3_flash_data, | |
159 | }, | |
160 | }; | |
161 | static void __init balloon3_nor_init(void) | |
162 | { | |
163 | platform_device_register(&balloon3_flash); | |
164 | } | |
165 | #else | |
166 | static inline void balloon3_nor_init(void) {} | |
167 | #endif | |
168 | ||
169 | /****************************************************************************** | |
170 | * Audio and Touchscreen | |
171 | ******************************************************************************/ | |
172 | #if defined(CONFIG_TOUCHSCREEN_UCB1400) || \ | |
173 | defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE) | |
b476ef05 MV |
174 | static unsigned long balloon3_ac97_pin_config[] __initdata = { |
175 | GPIO28_AC97_BITCLK, | |
176 | GPIO29_AC97_SDATA_IN_0, | |
177 | GPIO30_AC97_SDATA_OUT, | |
178 | GPIO31_AC97_SYNC, | |
179 | GPIO113_AC97_nRESET, | |
180 | GPIO95_GPIO, | |
181 | }; | |
182 | ||
12a2449c MV |
183 | static struct ucb1400_pdata vpac270_ucb1400_pdata = { |
184 | .irq = IRQ_GPIO(BALLOON3_GPIO_CODEC_IRQ), | |
185 | }; | |
186 | ||
187 | ||
188 | static struct platform_device balloon3_ucb1400_device = { | |
189 | .name = "ucb1400_core", | |
190 | .id = -1, | |
191 | .dev = { | |
192 | .platform_data = &vpac270_ucb1400_pdata, | |
193 | }, | |
194 | }; | |
195 | ||
196 | static void __init balloon3_ts_init(void) | |
197 | { | |
198 | if (!balloon3_has(BALLOON3_FEATURE_AUDIO)) | |
199 | return; | |
200 | ||
b476ef05 | 201 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_ac97_pin_config)); |
12a2449c MV |
202 | pxa_set_ac97_info(NULL); |
203 | platform_device_register(&balloon3_ucb1400_device); | |
204 | } | |
205 | #else | |
206 | static inline void balloon3_ts_init(void) {} | |
207 | #endif | |
208 | ||
209 | /****************************************************************************** | |
210 | * Framebuffer | |
211 | ******************************************************************************/ | |
212 | #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) | |
b476ef05 MV |
213 | static unsigned long balloon3_lcd_pin_config[] __initdata = { |
214 | GPIOxx_LCD_TFT_16BPP, | |
215 | GPIO99_GPIO, | |
216 | }; | |
217 | ||
2a23ec36 JM |
218 | static struct pxafb_mode_info balloon3_lcd_modes[] = { |
219 | { | |
220 | .pixclock = 38000, | |
221 | .xres = 480, | |
222 | .yres = 640, | |
223 | .bpp = 16, | |
224 | .hsync_len = 8, | |
225 | .left_margin = 8, | |
226 | .right_margin = 8, | |
227 | .vsync_len = 2, | |
228 | .upper_margin = 4, | |
229 | .lower_margin = 5, | |
230 | .sync = 0, | |
231 | }, | |
232 | }; | |
233 | ||
12a2449c | 234 | static struct pxafb_mach_info balloon3_lcd_screen = { |
2a23ec36 JM |
235 | .modes = balloon3_lcd_modes, |
236 | .num_modes = ARRAY_SIZE(balloon3_lcd_modes), | |
237 | .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, | |
2a23ec36 JM |
238 | }; |
239 | ||
12a2449c MV |
240 | static void balloon3_backlight_power(int on) |
241 | { | |
242 | gpio_set_value(BALLOON3_GPIO_RUN_BACKLIGHT, on); | |
243 | } | |
2a23ec36 | 244 | |
12a2449c | 245 | static void __init balloon3_lcd_init(void) |
2a23ec36 | 246 | { |
12a2449c MV |
247 | int ret; |
248 | ||
249 | if (!balloon3_has(BALLOON3_FEATURE_TOPPOLY)) | |
250 | return; | |
251 | ||
b476ef05 MV |
252 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_lcd_pin_config)); |
253 | ||
12a2449c MV |
254 | ret = gpio_request(BALLOON3_GPIO_RUN_BACKLIGHT, "BKL-ON"); |
255 | if (ret) { | |
256 | pr_err("Requesting BKL-ON GPIO failed!\n"); | |
257 | goto err; | |
258 | } | |
259 | ||
260 | ret = gpio_direction_output(BALLOON3_GPIO_RUN_BACKLIGHT, 1); | |
261 | if (ret) { | |
262 | pr_err("Setting BKL-ON GPIO direction failed!\n"); | |
263 | goto err2; | |
2a23ec36 | 264 | } |
12a2449c MV |
265 | |
266 | balloon3_lcd_screen.pxafb_backlight_power = balloon3_backlight_power; | |
267 | set_pxa_fb_info(&balloon3_lcd_screen); | |
268 | return; | |
269 | ||
270 | err2: | |
271 | gpio_free(BALLOON3_GPIO_RUN_BACKLIGHT); | |
272 | err: | |
273 | return; | |
2a23ec36 | 274 | } |
12a2449c MV |
275 | #else |
276 | static inline void balloon3_lcd_init(void) {} | |
277 | #endif | |
2a23ec36 | 278 | |
12a2449c MV |
279 | /****************************************************************************** |
280 | * SD/MMC card controller | |
281 | ******************************************************************************/ | |
282 | #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE) | |
b476ef05 MV |
283 | static unsigned long balloon3_mmc_pin_config[] __initdata = { |
284 | GPIO32_MMC_CLK, | |
285 | GPIO92_MMC_DAT_0, | |
286 | GPIO109_MMC_DAT_1, | |
287 | GPIO110_MMC_DAT_2, | |
288 | GPIO111_MMC_DAT_3, | |
289 | GPIO112_MMC_CMD, | |
290 | }; | |
291 | ||
2a23ec36 | 292 | static struct pxamci_platform_data balloon3_mci_platform_data = { |
12a2449c MV |
293 | .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, |
294 | .gpio_card_detect = -1, | |
295 | .gpio_card_ro = -1, | |
296 | .gpio_power = -1, | |
297 | .detect_delay_ms = 200, | |
2a23ec36 JM |
298 | }; |
299 | ||
12a2449c MV |
300 | static void __init balloon3_mmc_init(void) |
301 | { | |
b476ef05 | 302 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_mmc_pin_config)); |
12a2449c MV |
303 | pxa_set_mci_info(&balloon3_mci_platform_data); |
304 | } | |
305 | #else | |
306 | static inline void balloon3_mmc_init(void) {} | |
307 | #endif | |
308 | ||
b0240bf4 MV |
309 | /****************************************************************************** |
310 | * USB Gadget | |
311 | ******************************************************************************/ | |
12a2449c MV |
312 | #if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE) |
313 | static void balloon3_udc_command(int cmd) | |
2a23ec36 | 314 | { |
12a2449c MV |
315 | if (cmd == PXA2XX_UDC_CMD_CONNECT) |
316 | UP2OCR |= UP2OCR_DPPUE | UP2OCR_DPPUBE; | |
317 | else if (cmd == PXA2XX_UDC_CMD_DISCONNECT) | |
318 | UP2OCR &= ~UP2OCR_DPPUE; | |
2a23ec36 JM |
319 | } |
320 | ||
12a2449c | 321 | static int balloon3_udc_is_connected(void) |
2a23ec36 | 322 | { |
12a2449c | 323 | return 1; |
2a23ec36 JM |
324 | } |
325 | ||
12a2449c MV |
326 | static struct pxa2xx_udc_mach_info balloon3_udc_info __initdata = { |
327 | .udc_command = balloon3_udc_command, | |
328 | .udc_is_connected = balloon3_udc_is_connected, | |
329 | .gpio_pullup = -1, | |
2a23ec36 JM |
330 | }; |
331 | ||
12a2449c MV |
332 | static void __init balloon3_udc_init(void) |
333 | { | |
334 | pxa_set_udc_info(&balloon3_udc_info); | |
335 | platform_device_register(&balloon3_gpio_vbus); | |
336 | } | |
337 | #else | |
338 | static inline void balloon3_udc_init(void) {} | |
339 | #endif | |
340 | ||
b0240bf4 MV |
341 | /****************************************************************************** |
342 | * IrDA | |
343 | ******************************************************************************/ | |
12a2449c | 344 | #if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE) |
2a23ec36 | 345 | static struct pxaficp_platform_data balloon3_ficp_platform_data = { |
12a2449c | 346 | .transceiver_cap = IR_FIRMODE | IR_SIRMODE | IR_OFF, |
2a23ec36 JM |
347 | }; |
348 | ||
12a2449c MV |
349 | static void __init balloon3_irda_init(void) |
350 | { | |
351 | pxa_set_ficp_info(&balloon3_ficp_platform_data); | |
352 | } | |
353 | #else | |
354 | static inline void balloon3_irda_init(void) {} | |
355 | #endif | |
356 | ||
b0240bf4 MV |
357 | /****************************************************************************** |
358 | * USB Host | |
359 | ******************************************************************************/ | |
12a2449c | 360 | #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) |
b476ef05 MV |
361 | static unsigned long balloon3_uhc_pin_config[] __initdata = { |
362 | GPIO88_USBH1_PWR, | |
363 | GPIO89_USBH1_PEN, | |
364 | }; | |
365 | ||
12a2449c | 366 | static struct pxaohci_platform_data balloon3_ohci_info = { |
2a23ec36 JM |
367 | .port_mode = PMM_PERPORT_MODE, |
368 | .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW, | |
369 | }; | |
370 | ||
12a2449c MV |
371 | static void __init balloon3_uhc_init(void) |
372 | { | |
373 | if (!balloon3_has(BALLOON3_FEATURE_OHCI)) | |
374 | return; | |
b476ef05 | 375 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_uhc_pin_config)); |
12a2449c MV |
376 | pxa_set_ohci_info(&balloon3_ohci_info); |
377 | } | |
378 | #else | |
379 | static inline void balloon3_uhc_init(void) {} | |
380 | #endif | |
381 | ||
b0240bf4 | 382 | /****************************************************************************** |
12a2449c | 383 | * LEDs |
b0240bf4 | 384 | ******************************************************************************/ |
12a2449c | 385 | #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) |
b476ef05 MV |
386 | static unsigned long balloon3_led_pin_config[] __initdata = { |
387 | GPIO9_GPIO, /* NAND activity LED */ | |
388 | GPIO10_GPIO, /* Heartbeat LED */ | |
389 | }; | |
390 | ||
12a2449c | 391 | struct gpio_led balloon3_gpio_leds[] = { |
2a23ec36 JM |
392 | { |
393 | .name = "balloon3:green:idle", | |
394 | .default_trigger = "heartbeat", | |
395 | .gpio = BALLOON3_GPIO_LED_IDLE, | |
396 | .active_low = 1, | |
12a2449c | 397 | }, { |
2a23ec36 JM |
398 | .name = "balloon3:green:nand", |
399 | .default_trigger = "nand-disk", | |
400 | .gpio = BALLOON3_GPIO_LED_NAND, | |
401 | .active_low = 1, | |
402 | }, | |
403 | }; | |
404 | ||
12a2449c | 405 | static struct gpio_led_platform_data balloon3_gpio_led_info = { |
2a23ec36 JM |
406 | .leds = balloon3_gpio_leds, |
407 | .num_leds = ARRAY_SIZE(balloon3_gpio_leds), | |
408 | }; | |
409 | ||
12a2449c | 410 | static struct platform_device balloon3_leds = { |
2a23ec36 | 411 | .name = "leds-gpio", |
02a453e4 | 412 | .id = 0, |
2a23ec36 | 413 | .dev = { |
12a2449c MV |
414 | .platform_data = &balloon3_gpio_led_info, |
415 | } | |
2a23ec36 JM |
416 | }; |
417 | ||
02a453e4 MV |
418 | struct gpio_led balloon3_pcf_gpio_leds[] = { |
419 | { | |
420 | .name = "balloon3:green:led0", | |
421 | .gpio = BALLOON3_PCF_GPIO_LED0, | |
422 | .active_low = 1, | |
423 | }, { | |
424 | .name = "balloon3:green:led1", | |
425 | .gpio = BALLOON3_PCF_GPIO_LED1, | |
426 | .active_low = 1, | |
427 | }, { | |
428 | .name = "balloon3:orange:led2", | |
429 | .gpio = BALLOON3_PCF_GPIO_LED2, | |
430 | .active_low = 1, | |
431 | }, { | |
432 | .name = "balloon3:orange:led3", | |
433 | .gpio = BALLOON3_PCF_GPIO_LED3, | |
434 | .active_low = 1, | |
435 | }, { | |
436 | .name = "balloon3:orange:led4", | |
437 | .gpio = BALLOON3_PCF_GPIO_LED4, | |
438 | .active_low = 1, | |
439 | }, { | |
440 | .name = "balloon3:orange:led5", | |
441 | .gpio = BALLOON3_PCF_GPIO_LED5, | |
442 | .active_low = 1, | |
443 | }, { | |
444 | .name = "balloon3:red:led6", | |
445 | .gpio = BALLOON3_PCF_GPIO_LED6, | |
446 | .active_low = 1, | |
447 | }, { | |
448 | .name = "balloon3:red:led7", | |
449 | .gpio = BALLOON3_PCF_GPIO_LED7, | |
450 | .active_low = 1, | |
451 | }, | |
452 | }; | |
453 | ||
454 | static struct gpio_led_platform_data balloon3_pcf_gpio_led_info = { | |
455 | .leds = balloon3_pcf_gpio_leds, | |
456 | .num_leds = ARRAY_SIZE(balloon3_pcf_gpio_leds), | |
457 | }; | |
458 | ||
459 | static struct platform_device balloon3_pcf_leds = { | |
460 | .name = "leds-gpio", | |
461 | .id = 1, | |
462 | .dev = { | |
463 | .platform_data = &balloon3_pcf_gpio_led_info, | |
464 | } | |
465 | }; | |
466 | ||
12a2449c | 467 | static void __init balloon3_leds_init(void) |
b0240bf4 | 468 | { |
b476ef05 | 469 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_led_pin_config)); |
12a2449c | 470 | platform_device_register(&balloon3_leds); |
02a453e4 | 471 | platform_device_register(&balloon3_pcf_leds); |
b0240bf4 | 472 | } |
12a2449c MV |
473 | #else |
474 | static inline void balloon3_leds_init(void) {} | |
475 | #endif | |
b0240bf4 MV |
476 | |
477 | /****************************************************************************** | |
478 | * FPGA IRQ | |
479 | ******************************************************************************/ | |
480 | static void balloon3_mask_irq(unsigned int irq) | |
481 | { | |
482 | int balloon3_irq = (irq - BALLOON3_IRQ(0)); | |
483 | balloon3_irq_enabled &= ~(1 << balloon3_irq); | |
484 | __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG); | |
485 | } | |
486 | ||
487 | static void balloon3_unmask_irq(unsigned int irq) | |
488 | { | |
489 | int balloon3_irq = (irq - BALLOON3_IRQ(0)); | |
490 | balloon3_irq_enabled |= (1 << balloon3_irq); | |
491 | __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG); | |
492 | } | |
493 | ||
494 | static struct irq_chip balloon3_irq_chip = { | |
495 | .name = "FPGA", | |
496 | .ack = balloon3_mask_irq, | |
497 | .mask = balloon3_mask_irq, | |
498 | .unmask = balloon3_unmask_irq, | |
499 | }; | |
500 | ||
501 | static void balloon3_irq_handler(unsigned int irq, struct irq_desc *desc) | |
502 | { | |
503 | unsigned long pending = __raw_readl(BALLOON3_INT_CONTROL_REG) & | |
504 | balloon3_irq_enabled; | |
b0240bf4 MV |
505 | do { |
506 | /* clear useless edge notification */ | |
507 | if (desc->chip->ack) | |
508 | desc->chip->ack(BALLOON3_AUX_NIRQ); | |
509 | while (pending) { | |
510 | irq = BALLOON3_IRQ(0) + __ffs(pending); | |
511 | generic_handle_irq(irq); | |
512 | pending &= pending - 1; | |
513 | } | |
514 | pending = __raw_readl(BALLOON3_INT_CONTROL_REG) & | |
515 | balloon3_irq_enabled; | |
516 | } while (pending); | |
517 | } | |
518 | ||
519 | static void __init balloon3_init_irq(void) | |
520 | { | |
521 | int irq; | |
522 | ||
523 | pxa27x_init_irq(); | |
524 | /* setup extra Balloon3 irqs */ | |
525 | for (irq = BALLOON3_IRQ(0); irq <= BALLOON3_IRQ(7); irq++) { | |
526 | set_irq_chip(irq, &balloon3_irq_chip); | |
527 | set_irq_handler(irq, handle_level_irq); | |
528 | set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); | |
529 | } | |
530 | ||
531 | set_irq_chained_handler(BALLOON3_AUX_NIRQ, balloon3_irq_handler); | |
532 | set_irq_type(BALLOON3_AUX_NIRQ, IRQ_TYPE_EDGE_FALLING); | |
533 | ||
534 | pr_debug("%s: chained handler installed - irq %d automatically " | |
535 | "enabled\n", __func__, BALLOON3_AUX_NIRQ); | |
536 | } | |
537 | ||
02a453e4 MV |
538 | /****************************************************************************** |
539 | * GPIO expander | |
540 | ******************************************************************************/ | |
541 | #if defined(CONFIG_GPIO_PCF857X) || defined(CONFIG_GPIO_PCF857X_MODULE) | |
542 | static struct pcf857x_platform_data balloon3_pcf857x_pdata = { | |
543 | .gpio_base = BALLOON3_PCF_GPIO_BASE, | |
544 | .n_latch = 0, | |
545 | .setup = NULL, | |
546 | .teardown = NULL, | |
547 | .context = NULL, | |
548 | }; | |
549 | ||
550 | static struct i2c_board_info __initdata balloon3_i2c_devs[] = { | |
551 | { | |
552 | I2C_BOARD_INFO("pcf8574a", 0x38), | |
553 | .platform_data = &balloon3_pcf857x_pdata, | |
554 | }, | |
555 | }; | |
556 | ||
557 | static void __init balloon3_i2c_init(void) | |
558 | { | |
559 | pxa_set_i2c_info(NULL); | |
560 | i2c_register_board_info(0, ARRAY_AND_SIZE(balloon3_i2c_devs)); | |
561 | } | |
562 | #else | |
563 | static inline void balloon3_i2c_init(void) {} | |
564 | #endif | |
565 | ||
e6a8ef54 MV |
566 | /****************************************************************************** |
567 | * NAND | |
568 | ******************************************************************************/ | |
569 | #if defined(CONFIG_MTD_NAND_PLATFORM)||defined(CONFIG_MTD_NAND_PLATFORM_MODULE) | |
570 | static uint16_t balloon3_ctl = | |
571 | BALLOON3_NAND_CONTROL_FLCE0 | BALLOON3_NAND_CONTROL_FLCE1 | | |
572 | BALLOON3_NAND_CONTROL_FLCE2 | BALLOON3_NAND_CONTROL_FLCE3 | | |
573 | BALLOON3_NAND_CONTROL_FLWP; | |
574 | ||
575 | static void balloon3_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) | |
576 | { | |
577 | struct nand_chip *this = mtd->priv; | |
578 | ||
579 | if (ctrl & NAND_CTRL_CHANGE) { | |
580 | if (ctrl & NAND_CLE) | |
581 | balloon3_ctl |= BALLOON3_NAND_CONTROL_FLCLE; | |
582 | else | |
583 | balloon3_ctl &= ~BALLOON3_NAND_CONTROL_FLCLE; | |
584 | ||
585 | if (ctrl & NAND_ALE) | |
586 | balloon3_ctl |= BALLOON3_NAND_CONTROL_FLALE; | |
587 | else | |
588 | balloon3_ctl &= ~BALLOON3_NAND_CONTROL_FLALE; | |
589 | ||
590 | __raw_writel(balloon3_ctl, BALLOON3_NAND_CONTROL_REG); | |
591 | } | |
592 | ||
593 | if (cmd != NAND_CMD_NONE) | |
594 | writeb(cmd, this->IO_ADDR_W); | |
595 | } | |
596 | ||
597 | static void balloon3_nand_select_chip(struct mtd_info *mtd, int chip) | |
598 | { | |
599 | if (chip < 0 || chip > 3) | |
600 | return; | |
601 | ||
602 | balloon3_ctl |= BALLOON3_NAND_CONTROL_FLCE0 | | |
603 | BALLOON3_NAND_CONTROL_FLCE1 | | |
604 | BALLOON3_NAND_CONTROL_FLCE2 | | |
605 | BALLOON3_NAND_CONTROL_FLCE3; | |
606 | ||
607 | /* Deassert correct nCE line */ | |
608 | balloon3_ctl &= ~(BALLOON3_NAND_CONTROL_FLCE0 << chip); | |
609 | ||
610 | __raw_writew(balloon3_ctl, BALLOON3_NAND_CONTROL_REG); | |
611 | } | |
612 | ||
613 | static int balloon3_nand_probe(struct platform_device *pdev) | |
614 | { | |
615 | void __iomem *temp_map; | |
616 | uint16_t ver; | |
617 | int ret; | |
618 | ||
619 | __raw_writew(BALLOON3_NAND_CONTROL2_16BIT, BALLOON3_NAND_CONTROL2_REG); | |
620 | ||
621 | ver = __raw_readw(BALLOON3_FPGA_VER); | |
622 | if (ver > 0x0201) | |
623 | pr_warn("The FPGA code, version 0x%04x, is newer than rel-0.3. " | |
624 | "NAND support might be broken in this version!", ver); | |
625 | ||
626 | /* Power up the NAND chips */ | |
627 | ret = gpio_request(BALLOON3_GPIO_RUN_NAND, "NAND"); | |
628 | if (ret) | |
629 | goto err1; | |
630 | ||
631 | ret = gpio_direction_output(BALLOON3_GPIO_RUN_NAND, 1); | |
632 | if (ret) | |
633 | goto err2; | |
634 | ||
635 | gpio_set_value(BALLOON3_GPIO_RUN_NAND, 1); | |
636 | ||
637 | /* Deassert all nCE lines and write protect line */ | |
638 | __raw_writel(balloon3_ctl, BALLOON3_NAND_CONTROL_REG); | |
639 | return 0; | |
640 | ||
641 | err2: | |
642 | gpio_free(BALLOON3_GPIO_RUN_NAND); | |
643 | err1: | |
644 | return ret; | |
645 | } | |
646 | ||
647 | static void balloon3_nand_remove(struct platform_device *pdev) | |
648 | { | |
649 | /* Power down the NAND chips */ | |
650 | gpio_set_value(BALLOON3_GPIO_RUN_NAND, 0); | |
651 | gpio_free(BALLOON3_GPIO_RUN_NAND); | |
652 | } | |
653 | ||
654 | static struct mtd_partition balloon3_partition_info[] = { | |
655 | [0] = { | |
656 | .name = "Boot", | |
657 | .offset = 0, | |
658 | .size = SZ_4M, | |
659 | }, | |
660 | [1] = { | |
661 | .name = "RootFS", | |
662 | .offset = MTDPART_OFS_APPEND, | |
663 | .size = MTDPART_SIZ_FULL | |
664 | }, | |
665 | }; | |
666 | ||
667 | static const char *balloon3_part_probes[] = { "cmdlinepart", NULL }; | |
668 | ||
669 | struct platform_nand_data balloon3_nand_pdata = { | |
670 | .chip = { | |
671 | .nr_chips = 4, | |
672 | .chip_offset = 0, | |
673 | .nr_partitions = ARRAY_SIZE(balloon3_partition_info), | |
674 | .partitions = balloon3_partition_info, | |
675 | .chip_delay = 50, | |
676 | .part_probe_types = balloon3_part_probes, | |
677 | }, | |
678 | .ctrl = { | |
679 | .hwcontrol = 0, | |
680 | .dev_ready = 0, | |
681 | .select_chip = balloon3_nand_select_chip, | |
682 | .cmd_ctrl = balloon3_nand_cmd_ctl, | |
683 | .probe = balloon3_nand_probe, | |
684 | .remove = balloon3_nand_remove, | |
685 | }, | |
686 | }; | |
687 | ||
688 | static struct resource balloon3_nand_resource[] = { | |
689 | [0] = { | |
690 | .start = BALLOON3_NAND_BASE, | |
691 | .end = BALLOON3_NAND_BASE + 0x4, | |
692 | .flags = IORESOURCE_MEM, | |
693 | }, | |
694 | }; | |
695 | ||
696 | static struct platform_device balloon3_nand = { | |
697 | .name = "gen_nand", | |
698 | .num_resources = ARRAY_SIZE(balloon3_nand_resource), | |
699 | .resource = balloon3_nand_resource, | |
700 | .id = -1, | |
701 | .dev = { | |
702 | .platform_data = &balloon3_nand_pdata, | |
703 | } | |
704 | }; | |
705 | ||
706 | static void __init balloon3_nand_init(void) | |
707 | { | |
708 | platform_device_register(&balloon3_nand); | |
709 | } | |
710 | #else | |
711 | static inline void balloon3_nand_init(void) {} | |
712 | #endif | |
713 | ||
3a27f6e0 MV |
714 | /****************************************************************************** |
715 | * Core power regulator | |
716 | ******************************************************************************/ | |
717 | #if defined(CONFIG_REGULATOR_MAX1586) || \ | |
718 | defined(CONFIG_REGULATOR_MAX1586_MODULE) | |
719 | static struct regulator_consumer_supply balloon3_max1587a_consumers[] = { | |
720 | { | |
721 | .supply = "vcc_core", | |
722 | } | |
723 | }; | |
724 | ||
725 | static struct regulator_init_data balloon3_max1587a_v3_info = { | |
726 | .constraints = { | |
727 | .name = "vcc_core range", | |
728 | .min_uV = 900000, | |
729 | .max_uV = 1705000, | |
730 | .always_on = 1, | |
731 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, | |
732 | }, | |
733 | .consumer_supplies = balloon3_max1587a_consumers, | |
734 | .num_consumer_supplies = ARRAY_SIZE(balloon3_max1587a_consumers), | |
735 | }; | |
736 | ||
737 | static struct max1586_subdev_data balloon3_max1587a_subdevs[] = { | |
738 | { | |
739 | .name = "vcc_core", | |
740 | .id = MAX1586_V3, | |
741 | .platform_data = &balloon3_max1587a_v3_info, | |
742 | } | |
743 | }; | |
744 | ||
745 | static struct max1586_platform_data balloon3_max1587a_info = { | |
746 | .subdevs = balloon3_max1587a_subdevs, | |
747 | .num_subdevs = ARRAY_SIZE(balloon3_max1587a_subdevs), | |
748 | .v3_gain = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */ | |
749 | }; | |
750 | ||
751 | static struct i2c_board_info __initdata balloon3_pi2c_board_info[] = { | |
752 | { | |
753 | I2C_BOARD_INFO("max1586", 0x14), | |
754 | .platform_data = &balloon3_max1587a_info, | |
755 | }, | |
756 | }; | |
757 | ||
758 | static void __init balloon3_pmic_init(void) | |
759 | { | |
760 | pxa27x_set_i2c_power_info(NULL); | |
761 | i2c_register_board_info(1, ARRAY_AND_SIZE(balloon3_pi2c_board_info)); | |
762 | } | |
763 | #else | |
764 | static inline void balloon3_pmic_init(void) {} | |
765 | #endif | |
766 | ||
b0240bf4 MV |
767 | /****************************************************************************** |
768 | * Machine init | |
769 | ******************************************************************************/ | |
2a23ec36 JM |
770 | static void __init balloon3_init(void) |
771 | { | |
2a23ec36 JM |
772 | ARB_CNTRL = ARB_CORE_PARK | 0x234; |
773 | ||
12a2449c MV |
774 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_pin_config)); |
775 | ||
cc155c6f RK |
776 | pxa_set_ffuart_info(NULL); |
777 | pxa_set_btuart_info(NULL); | |
778 | pxa_set_stuart_info(NULL); | |
779 | ||
02a453e4 | 780 | balloon3_i2c_init(); |
12a2449c MV |
781 | balloon3_irda_init(); |
782 | balloon3_lcd_init(); | |
783 | balloon3_leds_init(); | |
784 | balloon3_mmc_init(); | |
e6a8ef54 | 785 | balloon3_nand_init(); |
12a2449c | 786 | balloon3_nor_init(); |
3a27f6e0 | 787 | balloon3_pmic_init(); |
12a2449c MV |
788 | balloon3_ts_init(); |
789 | balloon3_udc_init(); | |
790 | balloon3_uhc_init(); | |
b476ef05 | 791 | balloon3_cf_init(); |
2a23ec36 JM |
792 | } |
793 | ||
794 | static struct map_desc balloon3_io_desc[] __initdata = { | |
795 | { /* CPLD/FPGA */ | |
796 | .virtual = BALLOON3_FPGA_VIRT, | |
797 | .pfn = __phys_to_pfn(BALLOON3_FPGA_PHYS), | |
798 | .length = BALLOON3_FPGA_LENGTH, | |
799 | .type = MT_DEVICE, | |
800 | }, | |
801 | }; | |
802 | ||
803 | static void __init balloon3_map_io(void) | |
804 | { | |
805 | pxa_map_io(); | |
806 | iotable_init(balloon3_io_desc, ARRAY_SIZE(balloon3_io_desc)); | |
807 | } | |
808 | ||
809 | MACHINE_START(BALLOON3, "Balloon3") | |
810 | /* Maintainer: Nick Bane. */ | |
2a23ec36 | 811 | .map_io = balloon3_map_io, |
6ac6b817 | 812 | .nr_irqs = BALLOON3_NR_IRQS, |
2a23ec36 JM |
813 | .init_irq = balloon3_init_irq, |
814 | .timer = &pxa_timer, | |
815 | .init_machine = balloon3_init, | |
816 | .boot_params = PHYS_OFFSET + 0x100, | |
817 | MACHINE_END |