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ARM: pxa: convert eseries to clock framework
[deliverable/linux.git] / arch / arm / mach-pxa / balloon3.c
CommitLineData
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 ******************************************************************************/
61static 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 75static unsigned long balloon3_irq_enabled;
b0240bf4 76
12a2449c
MV		 77static 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
82int balloon3_has(enum balloon3_features feature)
2a23ec36 83{
12a2449c
MV		 84 return (balloon3_features_present & (1 << feature)) ? 1 : 0;
85}
86EXPORT_SYMBOL_GPL(balloon3_has);
87
88int __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 95early_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)
101static 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
114static 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
122static 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)
129static struct mtd_partition balloon3_nor_partitions[] = {
130 {
131 .name = "Flash",
132 .offset = 0x00000000,
133 .size = MTDPART_SIZ_FULL,
134 }
135};
136
137static 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
145static struct resource balloon3_flash_resource = {
146 .start = PXA_CS0_PHYS,
147 .end = PXA_CS0_PHYS + SZ_64M - 1,
148 .flags = IORESOURCE_MEM,
149};
150
151static 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};
160static void __init balloon3_nor_init(void)
161{
162 platform_device_register(&balloon3_flash);
163}
164#else
165static 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		 173static 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 182static struct ucb1400_pdata vpac270_ucb1400_pdata = {
6384fdad 183 .irq = PXA_GPIO_TO_IRQ(BALLOON3_GPIO_CODEC_IRQ),
12a2449c
MV		 184};
185
186
187static struct platform_device balloon3_ucb1400_device = {
188 .name = "ucb1400_core",
189 .id = -1,
190 .dev = {
191 .platform_data = &vpac270_ucb1400_pdata,
192 },
193};
194
195static 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
205static 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		 212static unsigned long balloon3_lcd_pin_config[] __initdata = {
213 GPIOxx_LCD_TFT_16BPP,
214 GPIO99_GPIO,
215};
216
2a23ec36
JM		 217static 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 233static 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		 239static void balloon3_backlight_power(int on)
240{
241 gpio_set_value(BALLOON3_GPIO_RUN_BACKLIGHT, on);
242}
2a23ec36 243
12a2449c 244static 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
269err2:
270 gpio_free(BALLOON3_GPIO_RUN_BACKLIGHT);
271err:
272 return;
2a23ec36 273}
12a2449c
MV		 274#else
275static 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		 282static 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 291static 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		 299static 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
305static 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 312static 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 320static int balloon3_udc_is_connected(void)
2a23ec36 321{
12a2449c 322 return 1;
2a23ec36
JM		 323}
324
12a2449c
MV		 325static 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		 331static void __init balloon3_udc_init(void)
332{
333 pxa_set_udc_info(&balloon3_udc_info);
12a2449c
MV		 334}
335#else
336static 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 343static struct pxaficp_platform_data balloon3_ficp_platform_data = {
12a2449c 344 .transceiver_cap = IR_FIRMODE | IR_SIRMODE | IR_OFF,
2a23ec36
JM		 345};
346
12a2449c
MV		 347static void __init balloon3_irda_init(void)
348{
349 pxa_set_ficp_info(&balloon3_ficp_platform_data);
350}
351#else
352static 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		 359static unsigned long balloon3_uhc_pin_config[] __initdata = {
360 GPIO88_USBH1_PWR,
361 GPIO89_USBH1_PEN,
362};
363
12a2449c 364static 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		 369static 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
377static 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		 384static unsigned long balloon3_led_pin_config[] __initdata = {
385 GPIO9_GPIO, /* NAND activity LED */
386 GPIO10_GPIO, /* Heartbeat LED */
387};
388
12a2449c 389struct 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 403static 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 408static 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		 416struct 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
452static 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
457static 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 465static 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
472static inline void balloon3_leds_init(void) {}
473#endif
b0240bf4
MV		 474
475/******************************************************************************
476 * FPGA IRQ
477 ******************************************************************************/
a3f4c927 478static 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 485static 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
492static 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
499static 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
522static 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)
545static 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
553static struct i2c_board_info __initdata balloon3_i2c_devs[] = {
554 {
555 I2C_BOARD_INFO("pcf8574a", 0x38),
556 .platform_data = &balloon3_pcf857x_pdata,
557 },
558};
559
560static 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
566static 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		 573static 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
602static 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		 618static 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		 623static 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
655err2:
656 gpio_free(BALLOON3_GPIO_RUN_NAND);
657err1:
658 return ret;
659}
660
661static 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
668static 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		 681struct 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
699static 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
707static 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
717static void __init balloon3_nand_init(void)
718{
719 platform_device_register(&balloon3_nand);
720}
721#else
722static 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)
730static struct regulator_consumer_supply balloon3_max1587a_consumers[] = {
0bf189ab 731 REGULATOR_SUPPLY("vcc_core", NULL),
3a27f6e0
MV		 732};
733
734static 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
746static 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
754static 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
760static 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
767static 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
773static inline void balloon3_pmic_init(void) {}
774#endif
775
b0240bf4
MV		 776/******************************************************************************
777 * Machine init
778 ******************************************************************************/
2a23ec36
JM		 779static 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
803static 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
812static 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
818MACHINE_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 828MACHINE_END
Linux kernel - Deliverables
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