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Kobject: remove kobject_unregister() as no one uses it anymore
[linux-2.6-block.git] / arch / arm / mach-pxa / lubbock.c
CommitLineData
1da177e4
LT		 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/module.h>
15#include <linux/kernel.h>
16#include <linux/init.h>
d052d1be 17#include <linux/platform_device.h>
22f11c4e 18#include <linux/sysdev.h>
1da177e4
LT		 19#include <linux/major.h>
20#include <linux/fb.h>
21#include <linux/interrupt.h>
74ec71e1
TP		 22#include <linux/mtd/mtd.h>
23#include <linux/mtd/partitions.h>
1da177e4 24
9df5db80
DB		 25#include <linux/spi/spi.h>
26#include <linux/spi/ads7846.h>
27#include <asm/arch/pxa2xx_spi.h>
28
1da177e4
LT		 29#include <asm/setup.h>
30#include <asm/memory.h>
31#include <asm/mach-types.h>
32#include <asm/hardware.h>
33#include <asm/irq.h>
74ec71e1 34#include <asm/sizes.h>
1da177e4
LT		 35
36#include <asm/mach/arch.h>
37#include <asm/mach/map.h>
38#include <asm/mach/irq.h>
74ec71e1 39#include <asm/mach/flash.h>
1da177e4
LT		 40
41#include <asm/hardware/sa1111.h>
42
43#include <asm/arch/pxa-regs.h>
44#include <asm/arch/lubbock.h>
45#include <asm/arch/udc.h>
6f475c01 46#include <asm/arch/irda.h>
1da177e4
LT		 47#include <asm/arch/pxafb.h>
48#include <asm/arch/mmc.h>
49
50#include "generic.h"
46c41e62 51#include "devices.h"
1da177e4
LT		 52
53
54#define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
55
56void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
57{
58 unsigned long flags;
59
60 local_irq_save(flags);
61 LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask);
62 local_irq_restore(flags);
63}
64EXPORT_SYMBOL(lubbock_set_misc_wr);
65
66static unsigned long lubbock_irq_enabled;
67
68static void lubbock_mask_irq(unsigned int irq)
69{
70 int lubbock_irq = (irq - LUBBOCK_IRQ(0));
71 LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
72}
73
74static void lubbock_unmask_irq(unsigned int irq)
75{
76 int lubbock_irq = (irq - LUBBOCK_IRQ(0));
77 /* the irq can be acknowledged only if deasserted, so it's done here */
78 LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
79 LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
80}
81
38c677cb
DB		 82static struct irq_chip lubbock_irq_chip = {
83 .name = "FPGA",
1da177e4
LT		 84 .ack = lubbock_mask_irq,
85 .mask = lubbock_mask_irq,
86 .unmask = lubbock_unmask_irq,
87};
88
10dd5ce2 89static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
1da177e4
LT		 90{
91 unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
92 do {
93 GEDR(0) = GPIO_bit(0); /* clear our parent irq */
94 if (likely(pending)) {
95 irq = LUBBOCK_IRQ(0) + __ffs(pending);
96 desc = irq_desc + irq;
0cd61b68 97 desc_handle_irq(irq, desc);
1da177e4
LT		 98 }
99 pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
100 } while (pending);
101}
102
103static void __init lubbock_init_irq(void)
104{
105 int irq;
106
cd49104d 107 pxa25x_init_irq();
1da177e4
LT		 108
109 /* setup extra lubbock irqs */
110 for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
111 set_irq_chip(irq, &lubbock_irq_chip);
10dd5ce2 112 set_irq_handler(irq, handle_level_irq);
1da177e4
LT		 113 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
114 }
115
116 set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
117 set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
118}
119
22f11c4e
NP		 120#ifdef CONFIG_PM
121
122static int lubbock_irq_resume(struct sys_device *dev)
123{
124 LUB_IRQ_MASK_EN = lubbock_irq_enabled;
125 return 0;
126}
127
128static struct sysdev_class lubbock_irq_sysclass = {
129 set_kset_name("cpld_irq"),
130 .resume = lubbock_irq_resume,
131};
132
133static struct sys_device lubbock_irq_device = {
134 .cls = &lubbock_irq_sysclass,
135};
136
137static int __init lubbock_irq_device_init(void)
138{
139 int ret = sysdev_class_register(&lubbock_irq_sysclass);
140 if (ret == 0)
141 ret = sysdev_register(&lubbock_irq_device);
142 return ret;
143}
144
145device_initcall(lubbock_irq_device_init);
146
147#endif
148
1da177e4
LT		 149static int lubbock_udc_is_connected(void)
150{
151 return (LUB_MISC_RD & (1 << 9)) == 0;
152}
153
154static struct pxa2xx_udc_mach_info udc_info __initdata = {
155 .udc_is_connected = lubbock_udc_is_connected,
156 // no D+ pullup; lubbock can't connect/disconnect in software
157};
158
2cef2d55
NP		 159static struct platform_device lub_audio_device = {
160 .name = "pxa2xx-ac97",
161 .id = -1,
162};
163
1da177e4
LT		 164static struct resource sa1111_resources[] = {
165 [0] = {
166 .start = 0x10000000,
167 .end = 0x10001fff,
168 .flags = IORESOURCE_MEM,
169 },
170 [1] = {
171 .start = LUBBOCK_SA1111_IRQ,
172 .end = LUBBOCK_SA1111_IRQ,
173 .flags = IORESOURCE_IRQ,
174 },
175};
176
177static struct platform_device sa1111_device = {
178 .name = "sa1111",
179 .id = -1,
180 .num_resources = ARRAY_SIZE(sa1111_resources),
181 .resource = sa1111_resources,
182};
183
184static struct resource smc91x_resources[] = {
185 [0] = {
186 .name = "smc91x-regs",
85eb226c 187 .start = 0x0c000c00,
1da177e4
LT		 188 .end = 0x0c0fffff,
189 .flags = IORESOURCE_MEM,
190 },
191 [1] = {
192 .start = LUBBOCK_ETH_IRQ,
193 .end = LUBBOCK_ETH_IRQ,
194 .flags = IORESOURCE_IRQ,
195 },
196 [2] = {
197 .name = "smc91x-attrib",
198 .start = 0x0e000000,
199 .end = 0x0e0fffff,
200 .flags = IORESOURCE_MEM,
201 },
202};
203
9df5db80
DB		 204/* ADS7846 is connected through SSP ... and if your board has J5 populated,
205 * you can select it to replace the ucb1400 by switching the touchscreen cable
206 * (to J5) and poking board registers (as done below). Else it's only useful
207 * for the temperature sensors.
208 */
209static struct resource pxa_ssp_resources[] = {
210 [0] = {
211 .start = __PREG(SSCR0_P(1)),
212 .end = __PREG(SSCR0_P(1)) + 0x14,
213 .flags = IORESOURCE_MEM,
214 },
215 [1] = {
216 .start = IRQ_SSP,
217 .end = IRQ_SSP,
218 .flags = IORESOURCE_IRQ,
219 },
220};
221
222static struct pxa2xx_spi_master pxa_ssp_master_info = {
223 .ssp_type = PXA25x_SSP,
7053acbd 224 .clock_enable = CKEN_SSP,
9df5db80
DB		 225 .num_chipselect = 0,
226};
227
228static struct platform_device pxa_ssp = {
229 .name = "pxa2xx-spi",
230 .id = 1,
231 .resource = pxa_ssp_resources,
232 .num_resources = ARRAY_SIZE(pxa_ssp_resources),
233 .dev = {
234 .platform_data = &pxa_ssp_master_info,
235 },
236};
237
238static int lubbock_ads7846_pendown_state(void)
239{
240 /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
241 return 0;
242}
243
244static struct ads7846_platform_data ads_info = {
245 .model = 7846,
246 .vref_delay_usecs = 100, /* internal, no cap */
247 .get_pendown_state = lubbock_ads7846_pendown_state,
248 // .x_plate_ohms = 500, /* GUESS! */
249 // .y_plate_ohms = 500, /* GUESS! */
250};
251
252static void ads7846_cs(u32 command)
253{
254 static const unsigned TS_nCS = 1 << 11;
255 lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
256}
257
258static struct pxa2xx_spi_chip ads_hw = {
259 .tx_threshold = 1,
260 .rx_threshold = 2,
261 .cs_control = ads7846_cs,
262};
263
264static struct spi_board_info spi_board_info[] __initdata = { {
265 .modalias = "ads7846",
266 .platform_data = &ads_info,
267 .controller_data = &ads_hw,
268 .irq = LUBBOCK_BB_IRQ,
269 .max_speed_hz = 120000 /* max sample rate at 3V */
270 * 26 /* command + data + overhead */,
271 .bus_num = 1,
272 .chip_select = 0,
273},
274};
275
1da177e4
LT		 276static struct platform_device smc91x_device = {
277 .name = "smc91x",
278 .id = -1,
279 .num_resources = ARRAY_SIZE(smc91x_resources),
280 .resource = smc91x_resources,
281};
282
74ec71e1
TP		 283static struct resource flash_resources[] = {
284 [0] = {
285 .start = 0x00000000,
286 .end = SZ_64M - 1,
287 .flags = IORESOURCE_MEM,
288 },
289 [1] = {
290 .start = 0x04000000,
291 .end = 0x04000000 + SZ_64M - 1,
292 .flags = IORESOURCE_MEM,
293 },
294};
295
296static struct mtd_partition lubbock_partitions[] = {
297 {
298 .name = "Bootloader",
299 .size = 0x00040000,
300 .offset = 0,
301 .mask_flags = MTD_WRITEABLE /* force read-only */
302 },{
303 .name = "Kernel",
304 .size = 0x00100000,
305 .offset = 0x00040000,
306 },{
307 .name = "Filesystem",
308 .size = MTDPART_SIZ_FULL,
309 .offset = 0x00140000
310 }
311};
312
313static struct flash_platform_data lubbock_flash_data[2] = {
314 {
315 .map_name = "cfi_probe",
316 .parts = lubbock_partitions,
317 .nr_parts = ARRAY_SIZE(lubbock_partitions),
318 }, {
319 .map_name = "cfi_probe",
320 .parts = NULL,
321 .nr_parts = 0,
322 }
323};
324
325static struct platform_device lubbock_flash_device[2] = {
326 {
327 .name = "pxa2xx-flash",
328 .id = 0,
329 .dev = {
330 .platform_data = &lubbock_flash_data[0],
331 },
332 .resource = &flash_resources[0],
333 .num_resources = 1,
334 },
335 {
336 .name = "pxa2xx-flash",
337 .id = 1,
338 .dev = {
339 .platform_data = &lubbock_flash_data[1],
340 },
341 .resource = &flash_resources[1],
342 .num_resources = 1,
343 },
344};
345
1da177e4
LT		 346static struct platform_device *devices[] __initdata = {
347 &sa1111_device,
2cef2d55 348 &lub_audio_device,
1da177e4 349 &smc91x_device,
74ec71e1
TP		 350 &lubbock_flash_device[0],
351 &lubbock_flash_device[1],
9df5db80 352 &pxa_ssp,
1da177e4
LT		 353};
354
d14b272b 355static struct pxafb_mode_info sharp_lm8v31_mode = {
1da177e4
LT		 356 .pixclock = 270000,
357 .xres = 640,
358 .yres = 480,
359 .bpp = 16,
360 .hsync_len = 1,
361 .left_margin = 3,
362 .right_margin = 3,
363 .vsync_len = 1,
364 .upper_margin = 0,
365 .lower_margin = 0,
366 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
367 .cmap_greyscale = 0,
d14b272b
RP		 368};
369
370static struct pxafb_mach_info sharp_lm8v31 = {
371 .modes = &sharp_lm8v31_mode,
372 .num_modes = 1,
1da177e4
LT		 373 .cmap_inverse = 0,
374 .cmap_static = 0,
375 .lccr0 = LCCR0_SDS,
376 .lccr3 = LCCR3_PCP | LCCR3_Acb(255),
377};
378
85eb226c
DB		 379#define MMC_POLL_RATE msecs_to_jiffies(1000)
380
381static void lubbock_mmc_poll(unsigned long);
40220c1a 382static irq_handler_t mmc_detect_int;
85eb226c
DB		 383
384static struct timer_list mmc_timer = {
385 .function = lubbock_mmc_poll,
386};
387
388static void lubbock_mmc_poll(unsigned long data)
389{
390 unsigned long flags;
391
392 /* clear any previous irq state, then ... */
393 local_irq_save(flags);
394 LUB_IRQ_SET_CLR &= ~(1 << 0);
395 local_irq_restore(flags);
396
397 /* poll until mmc/sd card is removed */
398 if (LUB_IRQ_SET_CLR & (1 << 0))
399 mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
400 else {
2326eb98 401 (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
85eb226c
DB		 402 enable_irq(LUBBOCK_SD_IRQ);
403 }
404}
405
0cd61b68 406static irqreturn_t lubbock_detect_int(int irq, void *data)
85eb226c
DB		 407{
408 /* IRQ is level triggered; disable, and poll for removal */
409 disable_irq(irq);
410 mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
411
0cd61b68 412 return mmc_detect_int(irq, data);
85eb226c
DB		 413}
414
415static int lubbock_mci_init(struct device *dev,
40220c1a 416 irq_handler_t detect_int,
85eb226c 417 void *data)
1da177e4
LT		 418{
419 /* setup GPIO for PXA25x MMC controller */
420 pxa_gpio_mode(GPIO6_MMCCLK_MD);
421 pxa_gpio_mode(GPIO8_MMCCS0_MD);
422
85eb226c
DB		 423 /* detect card insert/eject */
424 mmc_detect_int = detect_int;
425 init_timer(&mmc_timer);
426 mmc_timer.data = (unsigned long) data;
427 return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
52e405ea 428 IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
85eb226c
DB		 429}
430
431static int lubbock_mci_get_ro(struct device *dev)
432{
433 return (LUB_MISC_RD & (1 << 2)) != 0;
434}
435
436static void lubbock_mci_exit(struct device *dev, void *data)
437{
438 free_irq(LUBBOCK_SD_IRQ, data);
439 del_timer_sync(&mmc_timer);
1da177e4
LT		 440}
441
442static struct pxamci_platform_data lubbock_mci_platform_data = {
443 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
85eb226c 444 .detect_delay = 1,
1da177e4 445 .init = lubbock_mci_init,
85eb226c
DB		 446 .get_ro = lubbock_mci_get_ro,
447 .exit = lubbock_mci_exit,
1da177e4
LT		 448};
449
6f475c01
NP		 450static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
451{
452 unsigned long flags;
453
454 local_irq_save(flags);
455 if (mode & IR_SIRMODE) {
456 LUB_MISC_WR &= ~(1 << 4);
457 } else if (mode & IR_FIRMODE) {
458 LUB_MISC_WR |= 1 << 4;
459 }
460 local_irq_restore(flags);
461}
462
463static struct pxaficp_platform_data lubbock_ficp_platform_data = {
464 .transceiver_cap = IR_SIRMODE | IR_FIRMODE,
465 .transceiver_mode = lubbock_irda_transceiver_mode,
466};
467
1da177e4
LT		 468static void __init lubbock_init(void)
469{
74ec71e1
TP		 470 int flashboot = (LUB_CONF_SWITCHES & 1);
471
1da177e4
LT		 472 pxa_set_udc_info(&udc_info);
473 set_pxa_fb_info(&sharp_lm8v31);
474 pxa_set_mci_info(&lubbock_mci_platform_data);
6f475c01 475 pxa_set_ficp_info(&lubbock_ficp_platform_data);
74ec71e1
TP		 476
477 lubbock_flash_data[0].width = lubbock_flash_data[1].width =
478 (BOOT_DEF & 1) ? 2 : 4;
479 /* Compensate for the nROMBT switch which swaps the flash banks */
480 printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
481 flashboot?"Flash":"ROM", flashboot);
482
483 lubbock_flash_data[flashboot^1].name = "application-flash";
484 lubbock_flash_data[flashboot].name = "boot-rom";
1da177e4 485 (void) platform_add_devices(devices, ARRAY_SIZE(devices));
9df5db80
DB		 486
487 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
1da177e4
LT		 488}
489
490static struct map_desc lubbock_io_desc[] __initdata = {
6f9182eb
DS		 491 { /* CPLD */
492 .virtual = LUBBOCK_FPGA_VIRT,
493 .pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
494 .length = 0x00100000,
495 .type = MT_DEVICE
496 }
1da177e4
LT		 497};
498
499static void __init lubbock_map_io(void)
500{
501 pxa_map_io();
502 iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
503
9df5db80
DB		 504 /* SSP data pins */
505 pxa_gpio_mode(GPIO23_SCLK_MD);
506 pxa_gpio_mode(GPIO25_STXD_MD);
507 pxa_gpio_mode(GPIO26_SRXD_MD);
508
1da177e4
LT		 509 /* This enables the BTUART */
510 pxa_gpio_mode(GPIO42_BTRXD_MD);
511 pxa_gpio_mode(GPIO43_BTTXD_MD);
512 pxa_gpio_mode(GPIO44_BTCTS_MD);
513 pxa_gpio_mode(GPIO45_BTRTS_MD);
514
693d9d95
RK		 515 GPSR(GPIO48_nPOE) =
516 GPIO_bit(GPIO48_nPOE) |
517 GPIO_bit(GPIO49_nPWE) |
518 GPIO_bit(GPIO50_nPIOR) |
519 GPIO_bit(GPIO51_nPIOW) |
520 GPIO_bit(GPIO52_nPCE_1) |
521 GPIO_bit(GPIO53_nPCE_2);
522
523 pxa_gpio_mode(GPIO48_nPOE_MD);
524 pxa_gpio_mode(GPIO49_nPWE_MD);
525 pxa_gpio_mode(GPIO50_nPIOR_MD);
526 pxa_gpio_mode(GPIO51_nPIOW_MD);
527 pxa_gpio_mode(GPIO52_nPCE_1_MD);
528 pxa_gpio_mode(GPIO53_nPCE_2_MD);
529 pxa_gpio_mode(GPIO54_pSKTSEL_MD);
530 pxa_gpio_mode(GPIO55_nPREG_MD);
531 pxa_gpio_mode(GPIO56_nPWAIT_MD);
532 pxa_gpio_mode(GPIO57_nIOIS16_MD);
533
1da177e4
LT		 534 /* This is for the SMC chip select */
535 pxa_gpio_mode(GPIO79_nCS_3_MD);
536
537 /* setup sleep mode values */
538 PWER = 0x00000002;
539 PFER = 0x00000000;
540 PRER = 0x00000002;
541 PGSR0 = 0x00008000;
542 PGSR1 = 0x003F0202;
543 PGSR2 = 0x0001C000;
544 PCFR |= PCFR_OPDE;
545}
546
547MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
e9dea0c6 548 /* Maintainer: MontaVista Software Inc. */
e9dea0c6 549 .phys_io = 0x40000000,
68070bde 550 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
e9dea0c6
RK		 551 .map_io = lubbock_map_io,
552 .init_irq = lubbock_init_irq,
1da177e4 553 .timer = &pxa_timer,
e9dea0c6 554 .init_machine = lubbock_init,
1da177e4 555MACHINE_END
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