Loading...
1/*
2 * linux/arch/arm/mach-pxa/lubbock.c
3 *
4 * Support for the Intel DBPXA250 Development Platform.
5 *
6 * Author: Nicolas Pitre
7 * Created: Jun 15, 2001
8 * Copyright: MontaVista Software Inc.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14#include <linux/gpio.h>
15#include <linux/module.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/io.h>
19#include <linux/platform_device.h>
20#include <linux/syscore_ops.h>
21#include <linux/major.h>
22#include <linux/fb.h>
23#include <linux/interrupt.h>
24#include <linux/mtd/mtd.h>
25#include <linux/mtd/partitions.h>
26#include <linux/smc91x.h>
27#include <linux/slab.h>
28#include <linux/leds.h>
29
30#include <linux/spi/spi.h>
31#include <linux/spi/ads7846.h>
32#include <linux/spi/pxa2xx_spi.h>
33
34#include <asm/setup.h>
35#include <asm/memory.h>
36#include <asm/mach-types.h>
37#include <mach/hardware.h>
38#include <asm/irq.h>
39#include <asm/sizes.h>
40
41#include <asm/mach/arch.h>
42#include <asm/mach/map.h>
43#include <asm/mach/irq.h>
44#include <asm/mach/flash.h>
45
46#include <asm/hardware/sa1111.h>
47
48#include <mach/pxa25x.h>
49#include <mach/audio.h>
50#include <mach/lubbock.h>
51#include <mach/udc.h>
52#include <linux/platform_data/irda-pxaficp.h>
53#include <linux/platform_data/video-pxafb.h>
54#include <linux/platform_data/mmc-pxamci.h>
55#include <mach/pm.h>
56#include <mach/smemc.h>
57
58#include "generic.h"
59#include "clock.h"
60#include "devices.h"
61
62static unsigned long lubbock_pin_config[] __initdata = {
63 GPIO15_nCS_1, /* CS1 - Flash */
64 GPIO78_nCS_2, /* CS2 - Baseboard FGPA */
65 GPIO79_nCS_3, /* CS3 - SMC ethernet */
66 GPIO80_nCS_4, /* CS4 - SA1111 */
67
68 /* SSP data pins */
69 GPIO23_SSP1_SCLK,
70 GPIO25_SSP1_TXD,
71 GPIO26_SSP1_RXD,
72
73 /* AC97 */
74 GPIO28_AC97_BITCLK,
75 GPIO29_AC97_SDATA_IN_0,
76 GPIO30_AC97_SDATA_OUT,
77 GPIO31_AC97_SYNC,
78
79 /* LCD - 16bpp DSTN */
80 GPIOxx_LCD_DSTN_16BPP,
81
82 /* BTUART */
83 GPIO42_BTUART_RXD,
84 GPIO43_BTUART_TXD,
85 GPIO44_BTUART_CTS,
86 GPIO45_BTUART_RTS,
87
88 /* PC Card */
89 GPIO48_nPOE,
90 GPIO49_nPWE,
91 GPIO50_nPIOR,
92 GPIO51_nPIOW,
93 GPIO52_nPCE_1,
94 GPIO53_nPCE_2,
95 GPIO54_nPSKTSEL,
96 GPIO55_nPREG,
97 GPIO56_nPWAIT,
98 GPIO57_nIOIS16,
99
100 /* MMC */
101 GPIO6_MMC_CLK,
102 GPIO8_MMC_CS0,
103
104 /* wakeup */
105 GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
106};
107
108#define LUB_HEXLED __LUB_REG(LUBBOCK_FPGA_PHYS + 0x010)
109#define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
110
111void lubbock_set_hexled(uint32_t value)
112{
113 LUB_HEXLED = value;
114}
115
116void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
117{
118 unsigned long flags;
119
120 local_irq_save(flags);
121 LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask);
122 local_irq_restore(flags);
123}
124EXPORT_SYMBOL(lubbock_set_misc_wr);
125
126static unsigned long lubbock_irq_enabled;
127
128static void lubbock_mask_irq(struct irq_data *d)
129{
130 int lubbock_irq = (d->irq - LUBBOCK_IRQ(0));
131 LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
132}
133
134static void lubbock_unmask_irq(struct irq_data *d)
135{
136 int lubbock_irq = (d->irq - LUBBOCK_IRQ(0));
137 /* the irq can be acknowledged only if deasserted, so it's done here */
138 LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
139 LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
140}
141
142static struct irq_chip lubbock_irq_chip = {
143 .name = "FPGA",
144 .irq_ack = lubbock_mask_irq,
145 .irq_mask = lubbock_mask_irq,
146 .irq_unmask = lubbock_unmask_irq,
147};
148
149static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
150{
151 unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
152 do {
153 /* clear our parent irq */
154 desc->irq_data.chip->irq_ack(&desc->irq_data);
155 if (likely(pending)) {
156 irq = LUBBOCK_IRQ(0) + __ffs(pending);
157 generic_handle_irq(irq);
158 }
159 pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
160 } while (pending);
161}
162
163static void __init lubbock_init_irq(void)
164{
165 int irq;
166
167 pxa25x_init_irq();
168
169 /* setup extra lubbock irqs */
170 for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
171 irq_set_chip_and_handler(irq, &lubbock_irq_chip,
172 handle_level_irq);
173 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
174 }
175
176 irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lubbock_irq_handler);
177 irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
178}
179
180#ifdef CONFIG_PM
181
182static void lubbock_irq_resume(void)
183{
184 LUB_IRQ_MASK_EN = lubbock_irq_enabled;
185}
186
187static struct syscore_ops lubbock_irq_syscore_ops = {
188 .resume = lubbock_irq_resume,
189};
190
191static int __init lubbock_irq_device_init(void)
192{
193 if (machine_is_lubbock()) {
194 register_syscore_ops(&lubbock_irq_syscore_ops);
195 return 0;
196 }
197 return -ENODEV;
198}
199
200device_initcall(lubbock_irq_device_init);
201
202#endif
203
204static int lubbock_udc_is_connected(void)
205{
206 return (LUB_MISC_RD & (1 << 9)) == 0;
207}
208
209static struct pxa2xx_udc_mach_info udc_info __initdata = {
210 .udc_is_connected = lubbock_udc_is_connected,
211 // no D+ pullup; lubbock can't connect/disconnect in software
212};
213
214static struct resource sa1111_resources[] = {
215 [0] = {
216 .start = 0x10000000,
217 .end = 0x10001fff,
218 .flags = IORESOURCE_MEM,
219 },
220 [1] = {
221 .start = LUBBOCK_SA1111_IRQ,
222 .end = LUBBOCK_SA1111_IRQ,
223 .flags = IORESOURCE_IRQ,
224 },
225};
226
227static struct sa1111_platform_data sa1111_info = {
228 .irq_base = LUBBOCK_SA1111_IRQ_BASE,
229 .disable_devs = SA1111_DEVID_SAC,
230};
231
232static struct platform_device sa1111_device = {
233 .name = "sa1111",
234 .id = -1,
235 .num_resources = ARRAY_SIZE(sa1111_resources),
236 .resource = sa1111_resources,
237 .dev = {
238 .platform_data = &sa1111_info,
239 },
240};
241
242/* ADS7846 is connected through SSP ... and if your board has J5 populated,
243 * you can select it to replace the ucb1400 by switching the touchscreen cable
244 * (to J5) and poking board registers (as done below). Else it's only useful
245 * for the temperature sensors.
246 */
247static struct pxa2xx_spi_master pxa_ssp_master_info = {
248 .num_chipselect = 1,
249};
250
251static int lubbock_ads7846_pendown_state(void)
252{
253 /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
254 return 0;
255}
256
257static struct ads7846_platform_data ads_info = {
258 .model = 7846,
259 .vref_delay_usecs = 100, /* internal, no cap */
260 .get_pendown_state = lubbock_ads7846_pendown_state,
261 // .x_plate_ohms = 500, /* GUESS! */
262 // .y_plate_ohms = 500, /* GUESS! */
263};
264
265static void ads7846_cs(u32 command)
266{
267 static const unsigned TS_nCS = 1 << 11;
268 lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
269}
270
271static struct pxa2xx_spi_chip ads_hw = {
272 .tx_threshold = 1,
273 .rx_threshold = 2,
274 .cs_control = ads7846_cs,
275};
276
277static struct spi_board_info spi_board_info[] __initdata = { {
278 .modalias = "ads7846",
279 .platform_data = &ads_info,
280 .controller_data = &ads_hw,
281 .irq = LUBBOCK_BB_IRQ,
282 .max_speed_hz = 120000 /* max sample rate at 3V */
283 * 26 /* command + data + overhead */,
284 .bus_num = 1,
285 .chip_select = 0,
286},
287};
288
289static struct resource smc91x_resources[] = {
290 [0] = {
291 .name = "smc91x-regs",
292 .start = 0x0c000c00,
293 .end = 0x0c0fffff,
294 .flags = IORESOURCE_MEM,
295 },
296 [1] = {
297 .start = LUBBOCK_ETH_IRQ,
298 .end = LUBBOCK_ETH_IRQ,
299 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
300 },
301 [2] = {
302 .name = "smc91x-attrib",
303 .start = 0x0e000000,
304 .end = 0x0e0fffff,
305 .flags = IORESOURCE_MEM,
306 },
307};
308
309static struct smc91x_platdata lubbock_smc91x_info = {
310 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_2,
311};
312
313static struct platform_device smc91x_device = {
314 .name = "smc91x",
315 .id = -1,
316 .num_resources = ARRAY_SIZE(smc91x_resources),
317 .resource = smc91x_resources,
318 .dev = {
319 .platform_data = &lubbock_smc91x_info,
320 },
321};
322
323static struct resource flash_resources[] = {
324 [0] = {
325 .start = 0x00000000,
326 .end = SZ_64M - 1,
327 .flags = IORESOURCE_MEM,
328 },
329 [1] = {
330 .start = 0x04000000,
331 .end = 0x04000000 + SZ_64M - 1,
332 .flags = IORESOURCE_MEM,
333 },
334};
335
336static struct mtd_partition lubbock_partitions[] = {
337 {
338 .name = "Bootloader",
339 .size = 0x00040000,
340 .offset = 0,
341 .mask_flags = MTD_WRITEABLE /* force read-only */
342 },{
343 .name = "Kernel",
344 .size = 0x00100000,
345 .offset = 0x00040000,
346 },{
347 .name = "Filesystem",
348 .size = MTDPART_SIZ_FULL,
349 .offset = 0x00140000
350 }
351};
352
353static struct flash_platform_data lubbock_flash_data[2] = {
354 {
355 .map_name = "cfi_probe",
356 .parts = lubbock_partitions,
357 .nr_parts = ARRAY_SIZE(lubbock_partitions),
358 }, {
359 .map_name = "cfi_probe",
360 .parts = NULL,
361 .nr_parts = 0,
362 }
363};
364
365static struct platform_device lubbock_flash_device[2] = {
366 {
367 .name = "pxa2xx-flash",
368 .id = 0,
369 .dev = {
370 .platform_data = &lubbock_flash_data[0],
371 },
372 .resource = &flash_resources[0],
373 .num_resources = 1,
374 },
375 {
376 .name = "pxa2xx-flash",
377 .id = 1,
378 .dev = {
379 .platform_data = &lubbock_flash_data[1],
380 },
381 .resource = &flash_resources[1],
382 .num_resources = 1,
383 },
384};
385
386static struct platform_device *devices[] __initdata = {
387 &sa1111_device,
388 &smc91x_device,
389 &lubbock_flash_device[0],
390 &lubbock_flash_device[1],
391};
392
393static struct pxafb_mode_info sharp_lm8v31_mode = {
394 .pixclock = 270000,
395 .xres = 640,
396 .yres = 480,
397 .bpp = 16,
398 .hsync_len = 1,
399 .left_margin = 3,
400 .right_margin = 3,
401 .vsync_len = 1,
402 .upper_margin = 0,
403 .lower_margin = 0,
404 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
405 .cmap_greyscale = 0,
406};
407
408static struct pxafb_mach_info sharp_lm8v31 = {
409 .modes = &sharp_lm8v31_mode,
410 .num_modes = 1,
411 .cmap_inverse = 0,
412 .cmap_static = 0,
413 .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
414 LCD_AC_BIAS_FREQ(255),
415};
416
417#define MMC_POLL_RATE msecs_to_jiffies(1000)
418
419static void lubbock_mmc_poll(unsigned long);
420static irq_handler_t mmc_detect_int;
421
422static struct timer_list mmc_timer = {
423 .function = lubbock_mmc_poll,
424};
425
426static void lubbock_mmc_poll(unsigned long data)
427{
428 unsigned long flags;
429
430 /* clear any previous irq state, then ... */
431 local_irq_save(flags);
432 LUB_IRQ_SET_CLR &= ~(1 << 0);
433 local_irq_restore(flags);
434
435 /* poll until mmc/sd card is removed */
436 if (LUB_IRQ_SET_CLR & (1 << 0))
437 mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
438 else {
439 (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
440 enable_irq(LUBBOCK_SD_IRQ);
441 }
442}
443
444static irqreturn_t lubbock_detect_int(int irq, void *data)
445{
446 /* IRQ is level triggered; disable, and poll for removal */
447 disable_irq(irq);
448 mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
449
450 return mmc_detect_int(irq, data);
451}
452
453static int lubbock_mci_init(struct device *dev,
454 irq_handler_t detect_int,
455 void *data)
456{
457 /* detect card insert/eject */
458 mmc_detect_int = detect_int;
459 init_timer(&mmc_timer);
460 mmc_timer.data = (unsigned long) data;
461 return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
462 0, "lubbock-sd-detect", data);
463}
464
465static int lubbock_mci_get_ro(struct device *dev)
466{
467 return (LUB_MISC_RD & (1 << 2)) != 0;
468}
469
470static void lubbock_mci_exit(struct device *dev, void *data)
471{
472 free_irq(LUBBOCK_SD_IRQ, data);
473 del_timer_sync(&mmc_timer);
474}
475
476static struct pxamci_platform_data lubbock_mci_platform_data = {
477 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
478 .detect_delay_ms = 10,
479 .init = lubbock_mci_init,
480 .get_ro = lubbock_mci_get_ro,
481 .exit = lubbock_mci_exit,
482 .gpio_card_detect = -1,
483 .gpio_card_ro = -1,
484 .gpio_power = -1,
485};
486
487static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
488{
489 unsigned long flags;
490
491 local_irq_save(flags);
492 if (mode & IR_SIRMODE) {
493 LUB_MISC_WR &= ~(1 << 4);
494 } else if (mode & IR_FIRMODE) {
495 LUB_MISC_WR |= 1 << 4;
496 }
497 pxa2xx_transceiver_mode(dev, mode);
498 local_irq_restore(flags);
499}
500
501static struct pxaficp_platform_data lubbock_ficp_platform_data = {
502 .gpio_pwdown = -1,
503 .transceiver_cap = IR_SIRMODE | IR_FIRMODE,
504 .transceiver_mode = lubbock_irda_transceiver_mode,
505};
506
507static void __init lubbock_init(void)
508{
509 int flashboot = (LUB_CONF_SWITCHES & 1);
510
511 pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
512
513 pxa_set_ffuart_info(NULL);
514 pxa_set_btuart_info(NULL);
515 pxa_set_stuart_info(NULL);
516
517 clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
518 pxa_set_udc_info(&udc_info);
519 pxa_set_fb_info(NULL, &sharp_lm8v31);
520 pxa_set_mci_info(&lubbock_mci_platform_data);
521 pxa_set_ficp_info(&lubbock_ficp_platform_data);
522 pxa_set_ac97_info(NULL);
523
524 lubbock_flash_data[0].width = lubbock_flash_data[1].width =
525 (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
526 /* Compensate for the nROMBT switch which swaps the flash banks */
527 printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
528 flashboot?"Flash":"ROM", flashboot);
529
530 lubbock_flash_data[flashboot^1].name = "application-flash";
531 lubbock_flash_data[flashboot].name = "boot-rom";
532 (void) platform_add_devices(devices, ARRAY_SIZE(devices));
533
534 pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
535 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
536}
537
538static struct map_desc lubbock_io_desc[] __initdata = {
539 { /* CPLD */
540 .virtual = LUBBOCK_FPGA_VIRT,
541 .pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
542 .length = 0x00100000,
543 .type = MT_DEVICE
544 }
545};
546
547static void __init lubbock_map_io(void)
548{
549 pxa25x_map_io();
550 iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
551
552 PCFR |= PCFR_OPDE;
553}
554
555/*
556 * Driver for the 8 discrete LEDs available for general use:
557 * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
558 * so be sure to not monkey with them here.
559 */
560
561#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
562struct lubbock_led {
563 struct led_classdev cdev;
564 u8 mask;
565};
566
567/*
568 * The triggers lines up below will only be used if the
569 * LED triggers are compiled in.
570 */
571static const struct {
572 const char *name;
573 const char *trigger;
574} lubbock_leds[] = {
575 { "lubbock:D28", "default-on", },
576 { "lubbock:D27", "cpu0", },
577 { "lubbock:D26", "heartbeat" },
578 { "lubbock:D25", },
579 { "lubbock:D24", },
580 { "lubbock:D23", },
581 { "lubbock:D22", },
582 { "lubbock:D21", },
583};
584
585static void lubbock_led_set(struct led_classdev *cdev,
586 enum led_brightness b)
587{
588 struct lubbock_led *led = container_of(cdev,
589 struct lubbock_led, cdev);
590 u32 reg = LUB_DISC_BLNK_LED;
591
592 if (b != LED_OFF)
593 reg |= led->mask;
594 else
595 reg &= ~led->mask;
596
597 LUB_DISC_BLNK_LED = reg;
598}
599
600static enum led_brightness lubbock_led_get(struct led_classdev *cdev)
601{
602 struct lubbock_led *led = container_of(cdev,
603 struct lubbock_led, cdev);
604 u32 reg = LUB_DISC_BLNK_LED;
605
606 return (reg & led->mask) ? LED_FULL : LED_OFF;
607}
608
609static int __init lubbock_leds_init(void)
610{
611 int i;
612
613 if (!machine_is_lubbock())
614 return -ENODEV;
615
616 /* All ON */
617 LUB_DISC_BLNK_LED |= 0xff;
618 for (i = 0; i < ARRAY_SIZE(lubbock_leds); i++) {
619 struct lubbock_led *led;
620
621 led = kzalloc(sizeof(*led), GFP_KERNEL);
622 if (!led)
623 break;
624
625 led->cdev.name = lubbock_leds[i].name;
626 led->cdev.brightness_set = lubbock_led_set;
627 led->cdev.brightness_get = lubbock_led_get;
628 led->cdev.default_trigger = lubbock_leds[i].trigger;
629 led->mask = BIT(i);
630
631 if (led_classdev_register(NULL, &led->cdev) < 0) {
632 kfree(led);
633 break;
634 }
635 }
636
637 return 0;
638}
639
640/*
641 * Since we may have triggers on any subsystem, defer registration
642 * until after subsystem_init.
643 */
644fs_initcall(lubbock_leds_init);
645#endif
646
647MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
648 /* Maintainer: MontaVista Software Inc. */
649 .map_io = lubbock_map_io,
650 .nr_irqs = LUBBOCK_NR_IRQS,
651 .init_irq = lubbock_init_irq,
652 .handle_irq = pxa25x_handle_irq,
653 .init_time = pxa_timer_init,
654 .init_machine = lubbock_init,
655 .restart = pxa_restart,
656MACHINE_END
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/arch/arm/mach-pxa/lubbock.c
4 *
5 * Support for the Intel DBPXA250 Development Platform.
6 *
7 * Author: Nicolas Pitre
8 * Created: Jun 15, 2001
9 * Copyright: MontaVista Software Inc.
10 */
11#include <linux/clkdev.h>
12#include <linux/gpio.h>
13#include <linux/gpio/gpio-reg.h>
14#include <linux/gpio/machine.h>
15#include <linux/module.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/io.h>
19#include <linux/platform_device.h>
20#include <linux/syscore_ops.h>
21#include <linux/major.h>
22#include <linux/fb.h>
23#include <linux/interrupt.h>
24#include <linux/mtd/mtd.h>
25#include <linux/mtd/partitions.h>
26#include <linux/smc91x.h>
27#include <linux/slab.h>
28#include <linux/leds.h>
29
30#include <linux/spi/spi.h>
31#include <linux/spi/ads7846.h>
32#include <linux/spi/pxa2xx_spi.h>
33
34#include <asm/setup.h>
35#include <asm/memory.h>
36#include <asm/mach-types.h>
37#include <mach/hardware.h>
38#include <asm/irq.h>
39#include <linux/sizes.h>
40
41#include <asm/mach/arch.h>
42#include <asm/mach/map.h>
43#include <asm/mach/irq.h>
44#include <asm/mach/flash.h>
45
46#include <asm/hardware/sa1111.h>
47
48#include "pxa25x.h"
49#include <mach/audio.h>
50#include <mach/lubbock.h>
51#include "udc.h"
52#include <linux/platform_data/irda-pxaficp.h>
53#include <linux/platform_data/video-pxafb.h>
54#include <linux/platform_data/mmc-pxamci.h>
55#include "pm.h"
56#include <mach/smemc.h>
57
58#include "generic.h"
59#include "devices.h"
60
61static unsigned long lubbock_pin_config[] __initdata = {
62 GPIO15_nCS_1, /* CS1 - Flash */
63 GPIO78_nCS_2, /* CS2 - Baseboard FGPA */
64 GPIO79_nCS_3, /* CS3 - SMC ethernet */
65 GPIO80_nCS_4, /* CS4 - SA1111 */
66
67 /* SSP data pins */
68 GPIO23_SSP1_SCLK,
69 GPIO25_SSP1_TXD,
70 GPIO26_SSP1_RXD,
71
72 /* AC97 */
73 GPIO28_AC97_BITCLK,
74 GPIO29_AC97_SDATA_IN_0,
75 GPIO30_AC97_SDATA_OUT,
76 GPIO31_AC97_SYNC,
77
78 /* LCD - 16bpp DSTN */
79 GPIOxx_LCD_DSTN_16BPP,
80
81 /* BTUART */
82 GPIO42_BTUART_RXD,
83 GPIO43_BTUART_TXD,
84 GPIO44_BTUART_CTS,
85 GPIO45_BTUART_RTS,
86
87 /* PC Card */
88 GPIO48_nPOE,
89 GPIO49_nPWE,
90 GPIO50_nPIOR,
91 GPIO51_nPIOW,
92 GPIO52_nPCE_1,
93 GPIO53_nPCE_2,
94 GPIO54_nPSKTSEL,
95 GPIO55_nPREG,
96 GPIO56_nPWAIT,
97 GPIO57_nIOIS16,
98
99 /* MMC */
100 GPIO6_MMC_CLK,
101 GPIO8_MMC_CS0,
102
103 /* SA1111 chip */
104 GPIO11_3_6MHz,
105
106 /* wakeup */
107 GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
108};
109
110#define LUB_HEXLED __LUB_REG(LUBBOCK_FPGA_PHYS + 0x010)
111
112void lubbock_set_hexled(uint32_t value)
113{
114 LUB_HEXLED = value;
115}
116
117static struct gpio_chip *lubbock_misc_wr_gc;
118
119static void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
120{
121 unsigned long m = mask, v = set;
122 lubbock_misc_wr_gc->set_multiple(lubbock_misc_wr_gc, &m, &v);
123}
124
125static int lubbock_udc_is_connected(void)
126{
127 return (LUB_MISC_RD & (1 << 9)) == 0;
128}
129
130static struct pxa2xx_udc_mach_info udc_info __initdata = {
131 .udc_is_connected = lubbock_udc_is_connected,
132 // no D+ pullup; lubbock can't connect/disconnect in software
133};
134
135/* GPIOs for SA1111 PCMCIA */
136static struct gpiod_lookup_table sa1111_pcmcia_gpio_table = {
137 .dev_id = "1800",
138 .table = {
139 { "sa1111", 0, "a0vpp", GPIO_ACTIVE_HIGH },
140 { "sa1111", 1, "a1vpp", GPIO_ACTIVE_HIGH },
141 { "sa1111", 2, "a0vcc", GPIO_ACTIVE_HIGH },
142 { "sa1111", 3, "a1vcc", GPIO_ACTIVE_HIGH },
143 { "lubbock", 14, "b0vcc", GPIO_ACTIVE_HIGH },
144 { "lubbock", 15, "b1vcc", GPIO_ACTIVE_HIGH },
145 { },
146 },
147};
148
149static void lubbock_init_pcmcia(void)
150{
151 struct clk *clk;
152
153 gpiod_add_lookup_table(&sa1111_pcmcia_gpio_table);
154
155 /* Add an alias for the SA1111 PCMCIA clock */
156 clk = clk_get_sys("pxa2xx-pcmcia", NULL);
157 if (!IS_ERR(clk)) {
158 clkdev_create(clk, NULL, "1800");
159 clk_put(clk);
160 }
161}
162
163static struct resource sa1111_resources[] = {
164 [0] = {
165 .start = 0x10000000,
166 .end = 0x10001fff,
167 .flags = IORESOURCE_MEM,
168 },
169 [1] = {
170 .start = LUBBOCK_SA1111_IRQ,
171 .end = LUBBOCK_SA1111_IRQ,
172 .flags = IORESOURCE_IRQ,
173 },
174};
175
176static struct sa1111_platform_data sa1111_info = {
177 .irq_base = LUBBOCK_SA1111_IRQ_BASE,
178 .disable_devs = SA1111_DEVID_SAC,
179};
180
181static struct platform_device sa1111_device = {
182 .name = "sa1111",
183 .id = -1,
184 .num_resources = ARRAY_SIZE(sa1111_resources),
185 .resource = sa1111_resources,
186 .dev = {
187 .platform_data = &sa1111_info,
188 },
189};
190
191/* ADS7846 is connected through SSP ... and if your board has J5 populated,
192 * you can select it to replace the ucb1400 by switching the touchscreen cable
193 * (to J5) and poking board registers (as done below). Else it's only useful
194 * for the temperature sensors.
195 */
196static struct pxa2xx_spi_controller pxa_ssp_master_info = {
197 .num_chipselect = 1,
198};
199
200static int lubbock_ads7846_pendown_state(void)
201{
202 /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
203 return 0;
204}
205
206static struct ads7846_platform_data ads_info = {
207 .model = 7846,
208 .vref_delay_usecs = 100, /* internal, no cap */
209 .get_pendown_state = lubbock_ads7846_pendown_state,
210 // .x_plate_ohms = 500, /* GUESS! */
211 // .y_plate_ohms = 500, /* GUESS! */
212};
213
214static void ads7846_cs(u32 command)
215{
216 static const unsigned TS_nCS = 1 << 11;
217 lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
218}
219
220static struct pxa2xx_spi_chip ads_hw = {
221 .tx_threshold = 1,
222 .rx_threshold = 2,
223 .cs_control = ads7846_cs,
224};
225
226static struct spi_board_info spi_board_info[] __initdata = { {
227 .modalias = "ads7846",
228 .platform_data = &ads_info,
229 .controller_data = &ads_hw,
230 .irq = LUBBOCK_BB_IRQ,
231 .max_speed_hz = 120000 /* max sample rate at 3V */
232 * 26 /* command + data + overhead */,
233 .bus_num = 1,
234 .chip_select = 0,
235},
236};
237
238static struct resource smc91x_resources[] = {
239 [0] = {
240 .name = "smc91x-regs",
241 .start = 0x0c000c00,
242 .end = 0x0c0fffff,
243 .flags = IORESOURCE_MEM,
244 },
245 [1] = {
246 .start = LUBBOCK_ETH_IRQ,
247 .end = LUBBOCK_ETH_IRQ,
248 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
249 },
250 [2] = {
251 .name = "smc91x-attrib",
252 .start = 0x0e000000,
253 .end = 0x0e0fffff,
254 .flags = IORESOURCE_MEM,
255 },
256};
257
258static struct smc91x_platdata lubbock_smc91x_info = {
259 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_2,
260};
261
262static struct platform_device smc91x_device = {
263 .name = "smc91x",
264 .id = -1,
265 .num_resources = ARRAY_SIZE(smc91x_resources),
266 .resource = smc91x_resources,
267 .dev = {
268 .platform_data = &lubbock_smc91x_info,
269 },
270};
271
272static struct resource flash_resources[] = {
273 [0] = {
274 .start = 0x00000000,
275 .end = SZ_64M - 1,
276 .flags = IORESOURCE_MEM,
277 },
278 [1] = {
279 .start = 0x04000000,
280 .end = 0x04000000 + SZ_64M - 1,
281 .flags = IORESOURCE_MEM,
282 },
283};
284
285static struct mtd_partition lubbock_partitions[] = {
286 {
287 .name = "Bootloader",
288 .size = 0x00040000,
289 .offset = 0,
290 .mask_flags = MTD_WRITEABLE /* force read-only */
291 },{
292 .name = "Kernel",
293 .size = 0x00100000,
294 .offset = 0x00040000,
295 },{
296 .name = "Filesystem",
297 .size = MTDPART_SIZ_FULL,
298 .offset = 0x00140000
299 }
300};
301
302static struct flash_platform_data lubbock_flash_data[2] = {
303 {
304 .map_name = "cfi_probe",
305 .parts = lubbock_partitions,
306 .nr_parts = ARRAY_SIZE(lubbock_partitions),
307 }, {
308 .map_name = "cfi_probe",
309 .parts = NULL,
310 .nr_parts = 0,
311 }
312};
313
314static struct platform_device lubbock_flash_device[2] = {
315 {
316 .name = "pxa2xx-flash",
317 .id = 0,
318 .dev = {
319 .platform_data = &lubbock_flash_data[0],
320 },
321 .resource = &flash_resources[0],
322 .num_resources = 1,
323 },
324 {
325 .name = "pxa2xx-flash",
326 .id = 1,
327 .dev = {
328 .platform_data = &lubbock_flash_data[1],
329 },
330 .resource = &flash_resources[1],
331 .num_resources = 1,
332 },
333};
334
335static struct resource lubbock_cplds_resources[] = {
336 [0] = {
337 .start = LUBBOCK_FPGA_PHYS + 0xc0,
338 .end = LUBBOCK_FPGA_PHYS + 0xe0 - 1,
339 .flags = IORESOURCE_MEM,
340 },
341 [1] = {
342 .start = PXA_GPIO_TO_IRQ(0),
343 .end = PXA_GPIO_TO_IRQ(0),
344 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
345 },
346 [2] = {
347 .start = LUBBOCK_IRQ(0),
348 .end = LUBBOCK_IRQ(6),
349 .flags = IORESOURCE_IRQ,
350 },
351};
352
353static struct platform_device lubbock_cplds_device = {
354 .name = "pxa_cplds_irqs",
355 .id = -1,
356 .resource = &lubbock_cplds_resources[0],
357 .num_resources = 3,
358};
359
360
361static struct platform_device *devices[] __initdata = {
362 &sa1111_device,
363 &smc91x_device,
364 &lubbock_flash_device[0],
365 &lubbock_flash_device[1],
366 &lubbock_cplds_device,
367};
368
369static struct pxafb_mode_info sharp_lm8v31_mode = {
370 .pixclock = 270000,
371 .xres = 640,
372 .yres = 480,
373 .bpp = 16,
374 .hsync_len = 1,
375 .left_margin = 3,
376 .right_margin = 3,
377 .vsync_len = 1,
378 .upper_margin = 0,
379 .lower_margin = 0,
380 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
381 .cmap_greyscale = 0,
382};
383
384static struct pxafb_mach_info sharp_lm8v31 = {
385 .modes = &sharp_lm8v31_mode,
386 .num_modes = 1,
387 .cmap_inverse = 0,
388 .cmap_static = 0,
389 .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
390 LCD_AC_BIAS_FREQ(255),
391};
392
393#define MMC_POLL_RATE msecs_to_jiffies(1000)
394
395static irq_handler_t mmc_detect_int;
396static void *mmc_detect_int_data;
397static struct timer_list mmc_timer;
398
399static void lubbock_mmc_poll(struct timer_list *unused)
400{
401 unsigned long flags;
402
403 /* clear any previous irq state, then ... */
404 local_irq_save(flags);
405 LUB_IRQ_SET_CLR &= ~(1 << 0);
406 local_irq_restore(flags);
407
408 /* poll until mmc/sd card is removed */
409 if (LUB_IRQ_SET_CLR & (1 << 0))
410 mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
411 else {
412 (void) mmc_detect_int(LUBBOCK_SD_IRQ, mmc_detect_int_data);
413 enable_irq(LUBBOCK_SD_IRQ);
414 }
415}
416
417static irqreturn_t lubbock_detect_int(int irq, void *data)
418{
419 /* IRQ is level triggered; disable, and poll for removal */
420 disable_irq(irq);
421 mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
422
423 return mmc_detect_int(irq, data);
424}
425
426static int lubbock_mci_init(struct device *dev,
427 irq_handler_t detect_int,
428 void *data)
429{
430 /* detect card insert/eject */
431 mmc_detect_int = detect_int;
432 mmc_detect_int_data = data;
433 timer_setup(&mmc_timer, lubbock_mmc_poll, 0);
434 return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
435 0, "lubbock-sd-detect", data);
436}
437
438static int lubbock_mci_get_ro(struct device *dev)
439{
440 return (LUB_MISC_RD & (1 << 2)) != 0;
441}
442
443static void lubbock_mci_exit(struct device *dev, void *data)
444{
445 free_irq(LUBBOCK_SD_IRQ, data);
446 del_timer_sync(&mmc_timer);
447}
448
449static struct pxamci_platform_data lubbock_mci_platform_data = {
450 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
451 .detect_delay_ms = 10,
452 .init = lubbock_mci_init,
453 .get_ro = lubbock_mci_get_ro,
454 .exit = lubbock_mci_exit,
455};
456
457static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
458{
459 unsigned long flags;
460
461 local_irq_save(flags);
462 if (mode & IR_SIRMODE) {
463 lubbock_set_misc_wr(BIT(4), 0);
464 } else if (mode & IR_FIRMODE) {
465 lubbock_set_misc_wr(BIT(4), BIT(4));
466 }
467 pxa2xx_transceiver_mode(dev, mode);
468 local_irq_restore(flags);
469}
470
471static struct pxaficp_platform_data lubbock_ficp_platform_data = {
472 .gpio_pwdown = -1,
473 .transceiver_cap = IR_SIRMODE | IR_FIRMODE,
474 .transceiver_mode = lubbock_irda_transceiver_mode,
475};
476
477static void __init lubbock_init(void)
478{
479 int flashboot = (LUB_CONF_SWITCHES & 1);
480
481 pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
482
483 lubbock_misc_wr_gc = gpio_reg_init(NULL, (void *)&LUB_MISC_WR,
484 -1, 16, "lubbock", 0, LUB_MISC_WR,
485 NULL, NULL, NULL);
486 if (IS_ERR(lubbock_misc_wr_gc)) {
487 pr_err("Lubbock: unable to register lubbock GPIOs: %ld\n",
488 PTR_ERR(lubbock_misc_wr_gc));
489 lubbock_misc_wr_gc = NULL;
490 }
491
492 pxa_set_ffuart_info(NULL);
493 pxa_set_btuart_info(NULL);
494 pxa_set_stuart_info(NULL);
495
496 lubbock_init_pcmcia();
497
498 clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
499 pxa_set_udc_info(&udc_info);
500 pxa_set_fb_info(NULL, &sharp_lm8v31);
501 pxa_set_mci_info(&lubbock_mci_platform_data);
502 pxa_set_ficp_info(&lubbock_ficp_platform_data);
503 pxa_set_ac97_info(NULL);
504
505 lubbock_flash_data[0].width = lubbock_flash_data[1].width =
506 (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
507 /* Compensate for the nROMBT switch which swaps the flash banks */
508 printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
509 flashboot?"Flash":"ROM", flashboot);
510
511 lubbock_flash_data[flashboot^1].name = "application-flash";
512 lubbock_flash_data[flashboot].name = "boot-rom";
513 (void) platform_add_devices(devices, ARRAY_SIZE(devices));
514
515 pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
516 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
517}
518
519static struct map_desc lubbock_io_desc[] __initdata = {
520 { /* CPLD */
521 .virtual = LUBBOCK_FPGA_VIRT,
522 .pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
523 .length = 0x00100000,
524 .type = MT_DEVICE
525 }
526};
527
528static void __init lubbock_map_io(void)
529{
530 pxa25x_map_io();
531 iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
532
533 PCFR |= PCFR_OPDE;
534}
535
536/*
537 * Driver for the 8 discrete LEDs available for general use:
538 * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
539 * so be sure to not monkey with them here.
540 */
541
542#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
543struct lubbock_led {
544 struct led_classdev cdev;
545 u8 mask;
546};
547
548/*
549 * The triggers lines up below will only be used if the
550 * LED triggers are compiled in.
551 */
552static const struct {
553 const char *name;
554 const char *trigger;
555} lubbock_leds[] = {
556 { "lubbock:D28", "default-on", },
557 { "lubbock:D27", "cpu0", },
558 { "lubbock:D26", "heartbeat" },
559 { "lubbock:D25", },
560 { "lubbock:D24", },
561 { "lubbock:D23", },
562 { "lubbock:D22", },
563 { "lubbock:D21", },
564};
565
566static void lubbock_led_set(struct led_classdev *cdev,
567 enum led_brightness b)
568{
569 struct lubbock_led *led = container_of(cdev,
570 struct lubbock_led, cdev);
571 u32 reg = LUB_DISC_BLNK_LED;
572
573 if (b != LED_OFF)
574 reg |= led->mask;
575 else
576 reg &= ~led->mask;
577
578 LUB_DISC_BLNK_LED = reg;
579}
580
581static enum led_brightness lubbock_led_get(struct led_classdev *cdev)
582{
583 struct lubbock_led *led = container_of(cdev,
584 struct lubbock_led, cdev);
585 u32 reg = LUB_DISC_BLNK_LED;
586
587 return (reg & led->mask) ? LED_FULL : LED_OFF;
588}
589
590static int __init lubbock_leds_init(void)
591{
592 int i;
593
594 if (!machine_is_lubbock())
595 return -ENODEV;
596
597 /* All ON */
598 LUB_DISC_BLNK_LED |= 0xff;
599 for (i = 0; i < ARRAY_SIZE(lubbock_leds); i++) {
600 struct lubbock_led *led;
601
602 led = kzalloc(sizeof(*led), GFP_KERNEL);
603 if (!led)
604 break;
605
606 led->cdev.name = lubbock_leds[i].name;
607 led->cdev.brightness_set = lubbock_led_set;
608 led->cdev.brightness_get = lubbock_led_get;
609 led->cdev.default_trigger = lubbock_leds[i].trigger;
610 led->mask = BIT(i);
611
612 if (led_classdev_register(NULL, &led->cdev) < 0) {
613 kfree(led);
614 break;
615 }
616 }
617
618 return 0;
619}
620
621/*
622 * Since we may have triggers on any subsystem, defer registration
623 * until after subsystem_init.
624 */
625fs_initcall(lubbock_leds_init);
626#endif
627
628MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
629 /* Maintainer: MontaVista Software Inc. */
630 .map_io = lubbock_map_io,
631 .nr_irqs = LUBBOCK_NR_IRQS,
632 .init_irq = pxa25x_init_irq,
633 .handle_irq = pxa25x_handle_irq,
634 .init_time = pxa_timer_init,
635 .init_machine = lubbock_init,
636 .restart = pxa_restart,
637MACHINE_END