Commit | Line | Data |
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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 | ||
61cbaa92 | 16 | #include <linux/export.h> |
2a23ec36 JM |
17 | #include <linux/init.h> |
18 | #include <linux/platform_device.h> | |
2a23ec36 JM |
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> |
b459396e | 30 | #include <linux/i2c/pxa-i2c.h> |
e6a8ef54 MV |
31 | #include <linux/mtd/nand.h> |
32 | #include <linux/mtd/physmap.h> | |
3a27f6e0 | 33 | #include <linux/regulator/max1586.h> |
2a23ec36 JM |
34 | |
35 | #include <asm/setup.h> | |
36 | #include <asm/mach-types.h> | |
37 | #include <asm/irq.h> | |
38 | #include <asm/sizes.h> | |
39 | ||
40 | #include <asm/mach/arch.h> | |
41 | #include <asm/mach/map.h> | |
42 | #include <asm/mach/irq.h> | |
43 | #include <asm/mach/flash.h> | |
44 | ||
45 | #include <mach/pxa27x.h> | |
46 | #include <mach/balloon3.h> | |
47 | #include <mach/audio.h> | |
293b2da1 AB |
48 | #include <linux/platform_data/video-pxafb.h> |
49 | #include <linux/platform_data/mmc-pxamci.h> | |
2a23ec36 JM |
50 | #include <mach/udc.h> |
51 | #include <mach/pxa27x-udc.h> | |
293b2da1 AB |
52 | #include <linux/platform_data/irda-pxaficp.h> |
53 | #include <linux/platform_data/usb-ohci-pxa27x.h> | |
2a23ec36 | 54 | |
2a23ec36 JM |
55 | #include "generic.h" |
56 | #include "devices.h" | |
57 | ||
b0240bf4 MV |
58 | /****************************************************************************** |
59 | * Pin configuration | |
60 | ******************************************************************************/ | |
61 | static unsigned long balloon3_pin_config[] __initdata = { | |
62 | /* Select BTUART 'COM1/ttyS0' as IO option for pins 42/43/44/45 */ | |
63 | GPIO42_BTUART_RXD, | |
64 | GPIO43_BTUART_TXD, | |
65 | GPIO44_BTUART_CTS, | |
66 | GPIO45_BTUART_RTS, | |
2a23ec36 | 67 | |
12a2449c | 68 | /* Reset, configured as GPIO wakeup source */ |
b0240bf4 | 69 | GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH, |
c11b6a42 EM |
70 | }; |
71 | ||
b0240bf4 | 72 | /****************************************************************************** |
12a2449c | 73 | * Compatibility: Parameter parsing |
b0240bf4 | 74 | ******************************************************************************/ |
12a2449c | 75 | static unsigned long balloon3_irq_enabled; |
b0240bf4 | 76 | |
12a2449c MV |
77 | static unsigned long balloon3_features_present = |
78 | (1 << BALLOON3_FEATURE_OHCI) | (1 << BALLOON3_FEATURE_CF) | | |
79 | (1 << BALLOON3_FEATURE_AUDIO) | | |
80 | (1 << BALLOON3_FEATURE_TOPPOLY); | |
81 | ||
82 | int balloon3_has(enum balloon3_features feature) | |
2a23ec36 | 83 | { |
12a2449c MV |
84 | return (balloon3_features_present & (1 << feature)) ? 1 : 0; |
85 | } | |
86 | EXPORT_SYMBOL_GPL(balloon3_has); | |
87 | ||
88 | int __init parse_balloon3_features(char *arg) | |
89 | { | |
90 | if (!arg) | |
91 | return 0; | |
92 | ||
4fce45b4 | 93 | return kstrtoul(arg, 0, &balloon3_features_present); |
2a23ec36 | 94 | } |
12a2449c | 95 | early_param("balloon3_features", parse_balloon3_features); |
2a23ec36 | 96 | |
b476ef05 MV |
97 | /****************************************************************************** |
98 | * Compact Flash slot | |
99 | ******************************************************************************/ | |
100 | #if defined(CONFIG_PCMCIA_PXA2XX) || defined(CONFIG_PCMCIA_PXA2XX_MODULE) | |
101 | static unsigned long balloon3_cf_pin_config[] __initdata = { | |
102 | GPIO48_nPOE, | |
103 | GPIO49_nPWE, | |
104 | GPIO50_nPIOR, | |
105 | GPIO51_nPIOW, | |
106 | GPIO85_nPCE_1, | |
107 | GPIO54_nPCE_2, | |
108 | GPIO79_PSKTSEL, | |
109 | GPIO55_nPREG, | |
110 | GPIO56_nPWAIT, | |
111 | GPIO57_nIOIS16, | |
112 | }; | |
113 | ||
114 | static void __init balloon3_cf_init(void) | |
115 | { | |
116 | if (!balloon3_has(BALLOON3_FEATURE_CF)) | |
117 | return; | |
118 | ||
119 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_cf_pin_config)); | |
120 | } | |
121 | #else | |
122 | static inline void balloon3_cf_init(void) {} | |
123 | #endif | |
124 | ||
12a2449c MV |
125 | /****************************************************************************** |
126 | * NOR Flash | |
127 | ******************************************************************************/ | |
128 | #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE) | |
129 | static struct mtd_partition balloon3_nor_partitions[] = { | |
130 | { | |
131 | .name = "Flash", | |
132 | .offset = 0x00000000, | |
133 | .size = MTDPART_SIZ_FULL, | |
134 | } | |
135 | }; | |
136 | ||
137 | static struct physmap_flash_data balloon3_flash_data[] = { | |
138 | { | |
139 | .width = 2, /* bankwidth in bytes */ | |
140 | .parts = balloon3_nor_partitions, | |
141 | .nr_parts = ARRAY_SIZE(balloon3_nor_partitions) | |
142 | } | |
143 | }; | |
144 | ||
145 | static struct resource balloon3_flash_resource = { | |
146 | .start = PXA_CS0_PHYS, | |
147 | .end = PXA_CS0_PHYS + SZ_64M - 1, | |
148 | .flags = IORESOURCE_MEM, | |
149 | }; | |
150 | ||
151 | static struct platform_device balloon3_flash = { | |
152 | .name = "physmap-flash", | |
153 | .id = 0, | |
154 | .resource = &balloon3_flash_resource, | |
155 | .num_resources = 1, | |
156 | .dev = { | |
157 | .platform_data = balloon3_flash_data, | |
158 | }, | |
159 | }; | |
160 | static void __init balloon3_nor_init(void) | |
161 | { | |
162 | platform_device_register(&balloon3_flash); | |
163 | } | |
164 | #else | |
165 | static inline void balloon3_nor_init(void) {} | |
166 | #endif | |
167 | ||
168 | /****************************************************************************** | |
169 | * Audio and Touchscreen | |
170 | ******************************************************************************/ | |
171 | #if defined(CONFIG_TOUCHSCREEN_UCB1400) || \ | |
172 | defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE) | |
b476ef05 MV |
173 | static unsigned long balloon3_ac97_pin_config[] __initdata = { |
174 | GPIO28_AC97_BITCLK, | |
175 | GPIO29_AC97_SDATA_IN_0, | |
176 | GPIO30_AC97_SDATA_OUT, | |
177 | GPIO31_AC97_SYNC, | |
178 | GPIO113_AC97_nRESET, | |
179 | GPIO95_GPIO, | |
180 | }; | |
181 | ||
12a2449c | 182 | static struct ucb1400_pdata vpac270_ucb1400_pdata = { |
6384fdad | 183 | .irq = PXA_GPIO_TO_IRQ(BALLOON3_GPIO_CODEC_IRQ), |
12a2449c MV |
184 | }; |
185 | ||
186 | ||
187 | static struct platform_device balloon3_ucb1400_device = { | |
188 | .name = "ucb1400_core", | |
189 | .id = -1, | |
190 | .dev = { | |
191 | .platform_data = &vpac270_ucb1400_pdata, | |
192 | }, | |
193 | }; | |
194 | ||
195 | static void __init balloon3_ts_init(void) | |
196 | { | |
197 | if (!balloon3_has(BALLOON3_FEATURE_AUDIO)) | |
198 | return; | |
199 | ||
b476ef05 | 200 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_ac97_pin_config)); |
12a2449c MV |
201 | pxa_set_ac97_info(NULL); |
202 | platform_device_register(&balloon3_ucb1400_device); | |
203 | } | |
204 | #else | |
205 | static inline void balloon3_ts_init(void) {} | |
206 | #endif | |
207 | ||
208 | /****************************************************************************** | |
209 | * Framebuffer | |
210 | ******************************************************************************/ | |
211 | #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) | |
b476ef05 MV |
212 | static unsigned long balloon3_lcd_pin_config[] __initdata = { |
213 | GPIOxx_LCD_TFT_16BPP, | |
214 | GPIO99_GPIO, | |
215 | }; | |
216 | ||
2a23ec36 JM |
217 | static struct pxafb_mode_info balloon3_lcd_modes[] = { |
218 | { | |
219 | .pixclock = 38000, | |
220 | .xres = 480, | |
221 | .yres = 640, | |
222 | .bpp = 16, | |
223 | .hsync_len = 8, | |
224 | .left_margin = 8, | |
225 | .right_margin = 8, | |
226 | .vsync_len = 2, | |
227 | .upper_margin = 4, | |
228 | .lower_margin = 5, | |
229 | .sync = 0, | |
230 | }, | |
231 | }; | |
232 | ||
12a2449c | 233 | static struct pxafb_mach_info balloon3_lcd_screen = { |
2a23ec36 JM |
234 | .modes = balloon3_lcd_modes, |
235 | .num_modes = ARRAY_SIZE(balloon3_lcd_modes), | |
236 | .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, | |
2a23ec36 JM |
237 | }; |
238 | ||
12a2449c MV |
239 | static void balloon3_backlight_power(int on) |
240 | { | |
241 | gpio_set_value(BALLOON3_GPIO_RUN_BACKLIGHT, on); | |
242 | } | |
2a23ec36 | 243 | |
12a2449c | 244 | static void __init balloon3_lcd_init(void) |
2a23ec36 | 245 | { |
12a2449c MV |
246 | int ret; |
247 | ||
248 | if (!balloon3_has(BALLOON3_FEATURE_TOPPOLY)) | |
249 | return; | |
250 | ||
b476ef05 MV |
251 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_lcd_pin_config)); |
252 | ||
12a2449c MV |
253 | ret = gpio_request(BALLOON3_GPIO_RUN_BACKLIGHT, "BKL-ON"); |
254 | if (ret) { | |
255 | pr_err("Requesting BKL-ON GPIO failed!\n"); | |
256 | goto err; | |
257 | } | |
258 | ||
259 | ret = gpio_direction_output(BALLOON3_GPIO_RUN_BACKLIGHT, 1); | |
260 | if (ret) { | |
261 | pr_err("Setting BKL-ON GPIO direction failed!\n"); | |
262 | goto err2; | |
2a23ec36 | 263 | } |
12a2449c MV |
264 | |
265 | balloon3_lcd_screen.pxafb_backlight_power = balloon3_backlight_power; | |
4321e1a1 | 266 | pxa_set_fb_info(NULL, &balloon3_lcd_screen); |
12a2449c MV |
267 | return; |
268 | ||
269 | err2: | |
270 | gpio_free(BALLOON3_GPIO_RUN_BACKLIGHT); | |
271 | err: | |
272 | return; | |
2a23ec36 | 273 | } |
12a2449c MV |
274 | #else |
275 | static inline void balloon3_lcd_init(void) {} | |
276 | #endif | |
2a23ec36 | 277 | |
12a2449c MV |
278 | /****************************************************************************** |
279 | * SD/MMC card controller | |
280 | ******************************************************************************/ | |
281 | #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE) | |
b476ef05 MV |
282 | static unsigned long balloon3_mmc_pin_config[] __initdata = { |
283 | GPIO32_MMC_CLK, | |
284 | GPIO92_MMC_DAT_0, | |
285 | GPIO109_MMC_DAT_1, | |
286 | GPIO110_MMC_DAT_2, | |
287 | GPIO111_MMC_DAT_3, | |
288 | GPIO112_MMC_CMD, | |
289 | }; | |
290 | ||
2a23ec36 | 291 | static struct pxamci_platform_data balloon3_mci_platform_data = { |
12a2449c MV |
292 | .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, |
293 | .gpio_card_detect = -1, | |
294 | .gpio_card_ro = -1, | |
295 | .gpio_power = -1, | |
296 | .detect_delay_ms = 200, | |
2a23ec36 JM |
297 | }; |
298 | ||
12a2449c MV |
299 | static void __init balloon3_mmc_init(void) |
300 | { | |
b476ef05 | 301 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_mmc_pin_config)); |
12a2449c MV |
302 | pxa_set_mci_info(&balloon3_mci_platform_data); |
303 | } | |
304 | #else | |
305 | static inline void balloon3_mmc_init(void) {} | |
306 | #endif | |
307 | ||
b0240bf4 MV |
308 | /****************************************************************************** |
309 | * USB Gadget | |
310 | ******************************************************************************/ | |
c0a39151 | 311 | #if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE) |
12a2449c | 312 | static void balloon3_udc_command(int cmd) |
2a23ec36 | 313 | { |
12a2449c MV |
314 | if (cmd == PXA2XX_UDC_CMD_CONNECT) |
315 | UP2OCR |= UP2OCR_DPPUE | UP2OCR_DPPUBE; | |
316 | else if (cmd == PXA2XX_UDC_CMD_DISCONNECT) | |
317 | UP2OCR &= ~UP2OCR_DPPUE; | |
2a23ec36 JM |
318 | } |
319 | ||
12a2449c | 320 | static int balloon3_udc_is_connected(void) |
2a23ec36 | 321 | { |
12a2449c | 322 | return 1; |
2a23ec36 JM |
323 | } |
324 | ||
12a2449c MV |
325 | static struct pxa2xx_udc_mach_info balloon3_udc_info __initdata = { |
326 | .udc_command = balloon3_udc_command, | |
327 | .udc_is_connected = balloon3_udc_is_connected, | |
328 | .gpio_pullup = -1, | |
2a23ec36 JM |
329 | }; |
330 | ||
12a2449c MV |
331 | static void __init balloon3_udc_init(void) |
332 | { | |
333 | pxa_set_udc_info(&balloon3_udc_info); | |
12a2449c MV |
334 | } |
335 | #else | |
336 | static inline void balloon3_udc_init(void) {} | |
337 | #endif | |
338 | ||
b0240bf4 MV |
339 | /****************************************************************************** |
340 | * IrDA | |
341 | ******************************************************************************/ | |
12a2449c | 342 | #if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE) |
2a23ec36 | 343 | static struct pxaficp_platform_data balloon3_ficp_platform_data = { |
12a2449c | 344 | .transceiver_cap = IR_FIRMODE | IR_SIRMODE | IR_OFF, |
2a23ec36 JM |
345 | }; |
346 | ||
12a2449c MV |
347 | static void __init balloon3_irda_init(void) |
348 | { | |
349 | pxa_set_ficp_info(&balloon3_ficp_platform_data); | |
350 | } | |
351 | #else | |
352 | static inline void balloon3_irda_init(void) {} | |
353 | #endif | |
354 | ||
b0240bf4 MV |
355 | /****************************************************************************** |
356 | * USB Host | |
357 | ******************************************************************************/ | |
12a2449c | 358 | #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) |
b476ef05 MV |
359 | static unsigned long balloon3_uhc_pin_config[] __initdata = { |
360 | GPIO88_USBH1_PWR, | |
361 | GPIO89_USBH1_PEN, | |
362 | }; | |
363 | ||
12a2449c | 364 | static struct pxaohci_platform_data balloon3_ohci_info = { |
2a23ec36 JM |
365 | .port_mode = PMM_PERPORT_MODE, |
366 | .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW, | |
367 | }; | |
368 | ||
12a2449c MV |
369 | static void __init balloon3_uhc_init(void) |
370 | { | |
371 | if (!balloon3_has(BALLOON3_FEATURE_OHCI)) | |
372 | return; | |
b476ef05 | 373 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_uhc_pin_config)); |
12a2449c MV |
374 | pxa_set_ohci_info(&balloon3_ohci_info); |
375 | } | |
376 | #else | |
377 | static inline void balloon3_uhc_init(void) {} | |
378 | #endif | |
379 | ||
b0240bf4 | 380 | /****************************************************************************** |
12a2449c | 381 | * LEDs |
b0240bf4 | 382 | ******************************************************************************/ |
12a2449c | 383 | #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) |
b476ef05 MV |
384 | static unsigned long balloon3_led_pin_config[] __initdata = { |
385 | GPIO9_GPIO, /* NAND activity LED */ | |
386 | GPIO10_GPIO, /* Heartbeat LED */ | |
387 | }; | |
388 | ||
12a2449c | 389 | struct gpio_led balloon3_gpio_leds[] = { |
2a23ec36 JM |
390 | { |
391 | .name = "balloon3:green:idle", | |
392 | .default_trigger = "heartbeat", | |
393 | .gpio = BALLOON3_GPIO_LED_IDLE, | |
394 | .active_low = 1, | |
12a2449c | 395 | }, { |
2a23ec36 JM |
396 | .name = "balloon3:green:nand", |
397 | .default_trigger = "nand-disk", | |
398 | .gpio = BALLOON3_GPIO_LED_NAND, | |
399 | .active_low = 1, | |
400 | }, | |
401 | }; | |
402 | ||
12a2449c | 403 | static struct gpio_led_platform_data balloon3_gpio_led_info = { |
2a23ec36 JM |
404 | .leds = balloon3_gpio_leds, |
405 | .num_leds = ARRAY_SIZE(balloon3_gpio_leds), | |
406 | }; | |
407 | ||
12a2449c | 408 | static struct platform_device balloon3_leds = { |
2a23ec36 | 409 | .name = "leds-gpio", |
02a453e4 | 410 | .id = 0, |
2a23ec36 | 411 | .dev = { |
12a2449c MV |
412 | .platform_data = &balloon3_gpio_led_info, |
413 | } | |
2a23ec36 JM |
414 | }; |
415 | ||
02a453e4 MV |
416 | struct gpio_led balloon3_pcf_gpio_leds[] = { |
417 | { | |
418 | .name = "balloon3:green:led0", | |
419 | .gpio = BALLOON3_PCF_GPIO_LED0, | |
420 | .active_low = 1, | |
421 | }, { | |
422 | .name = "balloon3:green:led1", | |
423 | .gpio = BALLOON3_PCF_GPIO_LED1, | |
424 | .active_low = 1, | |
425 | }, { | |
426 | .name = "balloon3:orange:led2", | |
427 | .gpio = BALLOON3_PCF_GPIO_LED2, | |
428 | .active_low = 1, | |
429 | }, { | |
430 | .name = "balloon3:orange:led3", | |
431 | .gpio = BALLOON3_PCF_GPIO_LED3, | |
432 | .active_low = 1, | |
433 | }, { | |
434 | .name = "balloon3:orange:led4", | |
435 | .gpio = BALLOON3_PCF_GPIO_LED4, | |
436 | .active_low = 1, | |
437 | }, { | |
438 | .name = "balloon3:orange:led5", | |
439 | .gpio = BALLOON3_PCF_GPIO_LED5, | |
440 | .active_low = 1, | |
441 | }, { | |
442 | .name = "balloon3:red:led6", | |
443 | .gpio = BALLOON3_PCF_GPIO_LED6, | |
444 | .active_low = 1, | |
445 | }, { | |
446 | .name = "balloon3:red:led7", | |
447 | .gpio = BALLOON3_PCF_GPIO_LED7, | |
448 | .active_low = 1, | |
449 | }, | |
450 | }; | |
451 | ||
452 | static struct gpio_led_platform_data balloon3_pcf_gpio_led_info = { | |
453 | .leds = balloon3_pcf_gpio_leds, | |
454 | .num_leds = ARRAY_SIZE(balloon3_pcf_gpio_leds), | |
455 | }; | |
456 | ||
457 | static struct platform_device balloon3_pcf_leds = { | |
458 | .name = "leds-gpio", | |
459 | .id = 1, | |
460 | .dev = { | |
461 | .platform_data = &balloon3_pcf_gpio_led_info, | |
462 | } | |
463 | }; | |
464 | ||
12a2449c | 465 | static void __init balloon3_leds_init(void) |
b0240bf4 | 466 | { |
b476ef05 | 467 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_led_pin_config)); |
12a2449c | 468 | platform_device_register(&balloon3_leds); |
02a453e4 | 469 | platform_device_register(&balloon3_pcf_leds); |
b0240bf4 | 470 | } |
12a2449c MV |
471 | #else |
472 | static inline void balloon3_leds_init(void) {} | |
473 | #endif | |
b0240bf4 MV |
474 | |
475 | /****************************************************************************** | |
476 | * FPGA IRQ | |
477 | ******************************************************************************/ | |
a3f4c927 | 478 | static void balloon3_mask_irq(struct irq_data *d) |
b0240bf4 | 479 | { |
a3f4c927 | 480 | int balloon3_irq = (d->irq - BALLOON3_IRQ(0)); |
b0240bf4 MV |
481 | balloon3_irq_enabled &= ~(1 << balloon3_irq); |
482 | __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG); | |
483 | } | |
484 | ||
a3f4c927 | 485 | static void balloon3_unmask_irq(struct irq_data *d) |
b0240bf4 | 486 | { |
a3f4c927 | 487 | int balloon3_irq = (d->irq - BALLOON3_IRQ(0)); |
b0240bf4 MV |
488 | balloon3_irq_enabled |= (1 << balloon3_irq); |
489 | __raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG); | |
490 | } | |
491 | ||
492 | static struct irq_chip balloon3_irq_chip = { | |
493 | .name = "FPGA", | |
a3f4c927 LB |
494 | .irq_ack = balloon3_mask_irq, |
495 | .irq_mask = balloon3_mask_irq, | |
496 | .irq_unmask = balloon3_unmask_irq, | |
b0240bf4 MV |
497 | }; |
498 | ||
499 | static void balloon3_irq_handler(unsigned int irq, struct irq_desc *desc) | |
500 | { | |
501 | unsigned long pending = __raw_readl(BALLOON3_INT_CONTROL_REG) & | |
502 | balloon3_irq_enabled; | |
b0240bf4 MV |
503 | do { |
504 | /* clear useless edge notification */ | |
a3f4c927 LB |
505 | if (desc->irq_data.chip->irq_ack) { |
506 | struct irq_data *d; | |
507 | ||
508 | d = irq_get_irq_data(BALLOON3_AUX_NIRQ); | |
509 | desc->irq_data.chip->irq_ack(d); | |
510 | } | |
511 | ||
b0240bf4 MV |
512 | while (pending) { |
513 | irq = BALLOON3_IRQ(0) + __ffs(pending); | |
514 | generic_handle_irq(irq); | |
515 | pending &= pending - 1; | |
516 | } | |
517 | pending = __raw_readl(BALLOON3_INT_CONTROL_REG) & | |
518 | balloon3_irq_enabled; | |
519 | } while (pending); | |
520 | } | |
521 | ||
522 | static void __init balloon3_init_irq(void) | |
523 | { | |
524 | int irq; | |
525 | ||
526 | pxa27x_init_irq(); | |
527 | /* setup extra Balloon3 irqs */ | |
528 | for (irq = BALLOON3_IRQ(0); irq <= BALLOON3_IRQ(7); irq++) { | |
f38c02f3 TG |
529 | irq_set_chip_and_handler(irq, &balloon3_irq_chip, |
530 | handle_level_irq); | |
b0240bf4 MV |
531 | set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); |
532 | } | |
533 | ||
6845664a TG |
534 | irq_set_chained_handler(BALLOON3_AUX_NIRQ, balloon3_irq_handler); |
535 | irq_set_irq_type(BALLOON3_AUX_NIRQ, IRQ_TYPE_EDGE_FALLING); | |
b0240bf4 MV |
536 | |
537 | pr_debug("%s: chained handler installed - irq %d automatically " | |
538 | "enabled\n", __func__, BALLOON3_AUX_NIRQ); | |
539 | } | |
540 | ||
02a453e4 MV |
541 | /****************************************************************************** |
542 | * GPIO expander | |
543 | ******************************************************************************/ | |
544 | #if defined(CONFIG_GPIO_PCF857X) || defined(CONFIG_GPIO_PCF857X_MODULE) | |
545 | static struct pcf857x_platform_data balloon3_pcf857x_pdata = { | |
546 | .gpio_base = BALLOON3_PCF_GPIO_BASE, | |
547 | .n_latch = 0, | |
548 | .setup = NULL, | |
549 | .teardown = NULL, | |
550 | .context = NULL, | |
551 | }; | |
552 | ||
553 | static struct i2c_board_info __initdata balloon3_i2c_devs[] = { | |
554 | { | |
555 | I2C_BOARD_INFO("pcf8574a", 0x38), | |
556 | .platform_data = &balloon3_pcf857x_pdata, | |
557 | }, | |
558 | }; | |
559 | ||
560 | static void __init balloon3_i2c_init(void) | |
561 | { | |
562 | pxa_set_i2c_info(NULL); | |
563 | i2c_register_board_info(0, ARRAY_AND_SIZE(balloon3_i2c_devs)); | |
564 | } | |
565 | #else | |
566 | static inline void balloon3_i2c_init(void) {} | |
567 | #endif | |
568 | ||
e6a8ef54 MV |
569 | /****************************************************************************** |
570 | * NAND | |
571 | ******************************************************************************/ | |
572 | #if defined(CONFIG_MTD_NAND_PLATFORM)||defined(CONFIG_MTD_NAND_PLATFORM_MODULE) | |
e6a8ef54 MV |
573 | static void balloon3_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) |
574 | { | |
575 | struct nand_chip *this = mtd->priv; | |
1b9169d8 | 576 | uint8_t balloon3_ctl_set = 0, balloon3_ctl_clr = 0; |
e6a8ef54 MV |
577 | |
578 | if (ctrl & NAND_CTRL_CHANGE) { | |
579 | if (ctrl & NAND_CLE) | |
1b9169d8 | 580 | balloon3_ctl_set |= BALLOON3_NAND_CONTROL_FLCLE; |
e6a8ef54 | 581 | else |
1b9169d8 | 582 | balloon3_ctl_clr |= BALLOON3_NAND_CONTROL_FLCLE; |
e6a8ef54 MV |
583 | |
584 | if (ctrl & NAND_ALE) | |
1b9169d8 | 585 | balloon3_ctl_set |= BALLOON3_NAND_CONTROL_FLALE; |
e6a8ef54 | 586 | else |
1b9169d8 MV |
587 | balloon3_ctl_clr |= BALLOON3_NAND_CONTROL_FLALE; |
588 | ||
589 | if (balloon3_ctl_clr) | |
590 | __raw_writel(balloon3_ctl_clr, | |
591 | BALLOON3_NAND_CONTROL_REG); | |
592 | if (balloon3_ctl_set) | |
593 | __raw_writel(balloon3_ctl_set, | |
97b09da4 | 594 | BALLOON3_NAND_CONTROL_REG + |
1b9169d8 | 595 | BALLOON3_FPGA_SETnCLR); |
e6a8ef54 MV |
596 | } |
597 | ||
598 | if (cmd != NAND_CMD_NONE) | |
599 | writeb(cmd, this->IO_ADDR_W); | |
600 | } | |
601 | ||
602 | static void balloon3_nand_select_chip(struct mtd_info *mtd, int chip) | |
603 | { | |
604 | if (chip < 0 || chip > 3) | |
605 | return; | |
606 | ||
1b9169d8 MV |
607 | /* Assert all nCE lines */ |
608 | __raw_writew( | |
609 | BALLOON3_NAND_CONTROL_FLCE0 | BALLOON3_NAND_CONTROL_FLCE1 | | |
610 | BALLOON3_NAND_CONTROL_FLCE2 | BALLOON3_NAND_CONTROL_FLCE3, | |
97b09da4 | 611 | BALLOON3_NAND_CONTROL_REG + BALLOON3_FPGA_SETnCLR); |
e6a8ef54 MV |
612 | |
613 | /* Deassert correct nCE line */ | |
1b9169d8 MV |
614 | __raw_writew(BALLOON3_NAND_CONTROL_FLCE0 << chip, |
615 | BALLOON3_NAND_CONTROL_REG); | |
e6a8ef54 MV |
616 | } |
617 | ||
59bdd133 MV |
618 | static int balloon3_nand_dev_ready(struct mtd_info *mtd) |
619 | { | |
620 | return __raw_readl(BALLOON3_NAND_STAT_REG) & BALLOON3_NAND_STAT_RNB; | |
621 | } | |
622 | ||
e6a8ef54 MV |
623 | static int balloon3_nand_probe(struct platform_device *pdev) |
624 | { | |
e6a8ef54 MV |
625 | uint16_t ver; |
626 | int ret; | |
627 | ||
1b9169d8 | 628 | __raw_writew(BALLOON3_NAND_CONTROL2_16BIT, |
97b09da4 | 629 | BALLOON3_NAND_CONTROL2_REG + BALLOON3_FPGA_SETnCLR); |
e6a8ef54 MV |
630 | |
631 | ver = __raw_readw(BALLOON3_FPGA_VER); | |
1b9169d8 MV |
632 | if (ver < 0x4f08) |
633 | pr_warn("The FPGA code, version 0x%04x, is too old. " | |
e6a8ef54 MV |
634 | "NAND support might be broken in this version!", ver); |
635 | ||
636 | /* Power up the NAND chips */ | |
637 | ret = gpio_request(BALLOON3_GPIO_RUN_NAND, "NAND"); | |
638 | if (ret) | |
639 | goto err1; | |
640 | ||
641 | ret = gpio_direction_output(BALLOON3_GPIO_RUN_NAND, 1); | |
642 | if (ret) | |
643 | goto err2; | |
644 | ||
645 | gpio_set_value(BALLOON3_GPIO_RUN_NAND, 1); | |
646 | ||
647 | /* Deassert all nCE lines and write protect line */ | |
1b9169d8 MV |
648 | __raw_writel( |
649 | BALLOON3_NAND_CONTROL_FLCE0 | BALLOON3_NAND_CONTROL_FLCE1 | | |
650 | BALLOON3_NAND_CONTROL_FLCE2 | BALLOON3_NAND_CONTROL_FLCE3 | | |
651 | BALLOON3_NAND_CONTROL_FLWP, | |
97b09da4 | 652 | BALLOON3_NAND_CONTROL_REG + BALLOON3_FPGA_SETnCLR); |
e6a8ef54 MV |
653 | return 0; |
654 | ||
655 | err2: | |
656 | gpio_free(BALLOON3_GPIO_RUN_NAND); | |
657 | err1: | |
658 | return ret; | |
659 | } | |
660 | ||
661 | static void balloon3_nand_remove(struct platform_device *pdev) | |
662 | { | |
663 | /* Power down the NAND chips */ | |
664 | gpio_set_value(BALLOON3_GPIO_RUN_NAND, 0); | |
665 | gpio_free(BALLOON3_GPIO_RUN_NAND); | |
666 | } | |
667 | ||
668 | static struct mtd_partition balloon3_partition_info[] = { | |
669 | [0] = { | |
670 | .name = "Boot", | |
671 | .offset = 0, | |
672 | .size = SZ_4M, | |
673 | }, | |
674 | [1] = { | |
675 | .name = "RootFS", | |
676 | .offset = MTDPART_OFS_APPEND, | |
677 | .size = MTDPART_SIZ_FULL | |
678 | }, | |
679 | }; | |
680 | ||
e6a8ef54 MV |
681 | struct platform_nand_data balloon3_nand_pdata = { |
682 | .chip = { | |
683 | .nr_chips = 4, | |
684 | .chip_offset = 0, | |
685 | .nr_partitions = ARRAY_SIZE(balloon3_partition_info), | |
686 | .partitions = balloon3_partition_info, | |
687 | .chip_delay = 50, | |
e6a8ef54 MV |
688 | }, |
689 | .ctrl = { | |
690 | .hwcontrol = 0, | |
59bdd133 | 691 | .dev_ready = balloon3_nand_dev_ready, |
e6a8ef54 MV |
692 | .select_chip = balloon3_nand_select_chip, |
693 | .cmd_ctrl = balloon3_nand_cmd_ctl, | |
694 | .probe = balloon3_nand_probe, | |
695 | .remove = balloon3_nand_remove, | |
696 | }, | |
697 | }; | |
698 | ||
699 | static struct resource balloon3_nand_resource[] = { | |
700 | [0] = { | |
701 | .start = BALLOON3_NAND_BASE, | |
702 | .end = BALLOON3_NAND_BASE + 0x4, | |
703 | .flags = IORESOURCE_MEM, | |
704 | }, | |
705 | }; | |
706 | ||
707 | static struct platform_device balloon3_nand = { | |
708 | .name = "gen_nand", | |
709 | .num_resources = ARRAY_SIZE(balloon3_nand_resource), | |
710 | .resource = balloon3_nand_resource, | |
711 | .id = -1, | |
712 | .dev = { | |
713 | .platform_data = &balloon3_nand_pdata, | |
714 | } | |
715 | }; | |
716 | ||
717 | static void __init balloon3_nand_init(void) | |
718 | { | |
719 | platform_device_register(&balloon3_nand); | |
720 | } | |
721 | #else | |
722 | static inline void balloon3_nand_init(void) {} | |
723 | #endif | |
724 | ||
3a27f6e0 MV |
725 | /****************************************************************************** |
726 | * Core power regulator | |
727 | ******************************************************************************/ | |
728 | #if defined(CONFIG_REGULATOR_MAX1586) || \ | |
729 | defined(CONFIG_REGULATOR_MAX1586_MODULE) | |
730 | static struct regulator_consumer_supply balloon3_max1587a_consumers[] = { | |
0bf189ab | 731 | REGULATOR_SUPPLY("vcc_core", NULL), |
3a27f6e0 MV |
732 | }; |
733 | ||
734 | static struct regulator_init_data balloon3_max1587a_v3_info = { | |
735 | .constraints = { | |
736 | .name = "vcc_core range", | |
737 | .min_uV = 900000, | |
738 | .max_uV = 1705000, | |
739 | .always_on = 1, | |
740 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, | |
741 | }, | |
742 | .consumer_supplies = balloon3_max1587a_consumers, | |
743 | .num_consumer_supplies = ARRAY_SIZE(balloon3_max1587a_consumers), | |
744 | }; | |
745 | ||
746 | static struct max1586_subdev_data balloon3_max1587a_subdevs[] = { | |
747 | { | |
748 | .name = "vcc_core", | |
749 | .id = MAX1586_V3, | |
750 | .platform_data = &balloon3_max1587a_v3_info, | |
751 | } | |
752 | }; | |
753 | ||
754 | static struct max1586_platform_data balloon3_max1587a_info = { | |
755 | .subdevs = balloon3_max1587a_subdevs, | |
756 | .num_subdevs = ARRAY_SIZE(balloon3_max1587a_subdevs), | |
757 | .v3_gain = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */ | |
758 | }; | |
759 | ||
760 | static struct i2c_board_info __initdata balloon3_pi2c_board_info[] = { | |
761 | { | |
762 | I2C_BOARD_INFO("max1586", 0x14), | |
763 | .platform_data = &balloon3_max1587a_info, | |
764 | }, | |
765 | }; | |
766 | ||
767 | static void __init balloon3_pmic_init(void) | |
768 | { | |
769 | pxa27x_set_i2c_power_info(NULL); | |
770 | i2c_register_board_info(1, ARRAY_AND_SIZE(balloon3_pi2c_board_info)); | |
771 | } | |
772 | #else | |
773 | static inline void balloon3_pmic_init(void) {} | |
774 | #endif | |
775 | ||
b0240bf4 MV |
776 | /****************************************************************************** |
777 | * Machine init | |
778 | ******************************************************************************/ | |
2a23ec36 JM |
779 | static void __init balloon3_init(void) |
780 | { | |
2a23ec36 JM |
781 | ARB_CNTRL = ARB_CORE_PARK | 0x234; |
782 | ||
12a2449c MV |
783 | pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_pin_config)); |
784 | ||
cc155c6f RK |
785 | pxa_set_ffuart_info(NULL); |
786 | pxa_set_btuart_info(NULL); | |
787 | pxa_set_stuart_info(NULL); | |
788 | ||
02a453e4 | 789 | balloon3_i2c_init(); |
12a2449c MV |
790 | balloon3_irda_init(); |
791 | balloon3_lcd_init(); | |
792 | balloon3_leds_init(); | |
793 | balloon3_mmc_init(); | |
e6a8ef54 | 794 | balloon3_nand_init(); |
12a2449c | 795 | balloon3_nor_init(); |
3a27f6e0 | 796 | balloon3_pmic_init(); |
12a2449c MV |
797 | balloon3_ts_init(); |
798 | balloon3_udc_init(); | |
799 | balloon3_uhc_init(); | |
b476ef05 | 800 | balloon3_cf_init(); |
2a23ec36 JM |
801 | } |
802 | ||
803 | static struct map_desc balloon3_io_desc[] __initdata = { | |
804 | { /* CPLD/FPGA */ | |
97b09da4 | 805 | .virtual = (unsigned long)BALLOON3_FPGA_VIRT, |
2a23ec36 JM |
806 | .pfn = __phys_to_pfn(BALLOON3_FPGA_PHYS), |
807 | .length = BALLOON3_FPGA_LENGTH, | |
808 | .type = MT_DEVICE, | |
809 | }, | |
810 | }; | |
811 | ||
812 | static void __init balloon3_map_io(void) | |
813 | { | |
851982c1 | 814 | pxa27x_map_io(); |
2a23ec36 JM |
815 | iotable_init(balloon3_io_desc, ARRAY_SIZE(balloon3_io_desc)); |
816 | } | |
817 | ||
818 | MACHINE_START(BALLOON3, "Balloon3") | |
819 | /* Maintainer: Nick Bane. */ | |
2a23ec36 | 820 | .map_io = balloon3_map_io, |
6ac6b817 | 821 | .nr_irqs = BALLOON3_NR_IRQS, |
2a23ec36 | 822 | .init_irq = balloon3_init_irq, |
8a97ae2f | 823 | .handle_irq = pxa27x_handle_irq, |
6bb27d73 | 824 | .init_time = pxa_timer_init, |
2a23ec36 | 825 | .init_machine = balloon3_init, |
7375aba6 | 826 | .atag_offset = 0x100, |
271a74fc | 827 | .restart = pxa_restart, |
2a23ec36 | 828 | MACHINE_END |