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[ARM] pxa: allow multi-machine PCMCIA builds
[deliverable/linux.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>
3aed74cd 24#include <linux/smc91x.h>
1da177e4 25
9df5db80
DB		 26#include <linux/spi/spi.h>
27#include <linux/spi/ads7846.h>
a09e64fb 28#include <mach/pxa2xx_spi.h>
9df5db80 29
1da177e4
LT		 30#include <asm/setup.h>
31#include <asm/memory.h>
32#include <asm/mach-types.h>
a09e64fb 33#include <mach/hardware.h>
1da177e4 34#include <asm/irq.h>
74ec71e1 35#include <asm/sizes.h>
1da177e4
LT		 36
37#include <asm/mach/arch.h>
38#include <asm/mach/map.h>
39#include <asm/mach/irq.h>
74ec71e1 40#include <asm/mach/flash.h>
1da177e4
LT		 41
42#include <asm/hardware/sa1111.h>
43
a09e64fb
RK		 44#include <mach/pxa-regs.h>
45#include <mach/pxa2xx-regs.h>
46#include <mach/mfp-pxa25x.h>
47#include <mach/audio.h>
48#include <mach/lubbock.h>
49#include <mach/udc.h>
50#include <mach/irda.h>
51#include <mach/pxafb.h>
52#include <mach/mmc.h>
1da177e4
LT		 53
54#include "generic.h"
c1ed406c 55#include "clock.h"
46c41e62 56#include "devices.h"
1da177e4 57
9b02b2df 58static unsigned long lubbock_pin_config[] __initdata = {
59 GPIO15_nCS_1, /* CS1 - Flash */
4a5c5eab 60 GPIO78_nCS_2, /* CS2 - Baseboard FGPA */
9b02b2df 61 GPIO79_nCS_3, /* CS3 - SMC ethernet */
4a5c5eab 62 GPIO80_nCS_4, /* CS4 - SA1111 */
9b02b2df 63
64 /* SSP data pins */
65 GPIO23_SSP1_SCLK,
66 GPIO25_SSP1_TXD,
67 GPIO26_SSP1_RXD,
68
4a5c5eab
EM		 69 /* LCD - 16bpp DSTN */
70 GPIO58_LCD_LDD_0,
71 GPIO59_LCD_LDD_1,
72 GPIO60_LCD_LDD_2,
73 GPIO61_LCD_LDD_3,
74 GPIO62_LCD_LDD_4,
75 GPIO63_LCD_LDD_5,
76 GPIO64_LCD_LDD_6,
77 GPIO65_LCD_LDD_7,
78 GPIO66_LCD_LDD_8,
79 GPIO67_LCD_LDD_9,
80 GPIO68_LCD_LDD_10,
81 GPIO69_LCD_LDD_11,
82 GPIO70_LCD_LDD_12,
83 GPIO71_LCD_LDD_13,
84 GPIO72_LCD_LDD_14,
85 GPIO73_LCD_LDD_15,
86 GPIO74_LCD_FCLK,
87 GPIO75_LCD_LCLK,
88 GPIO76_LCD_PCLK,
89
9b02b2df 90 /* BTUART */
91 GPIO42_BTUART_RXD,
92 GPIO43_BTUART_TXD,
93 GPIO44_BTUART_CTS,
94 GPIO45_BTUART_RTS,
95
96 /* PC Card */
97 GPIO48_nPOE,
98 GPIO49_nPWE,
99 GPIO50_nPIOR,
100 GPIO51_nPIOW,
101 GPIO52_nPCE_1,
102 GPIO53_nPCE_2,
103 GPIO54_nPSKTSEL,
104 GPIO55_nPREG,
105 GPIO56_nPWAIT,
106 GPIO57_nIOIS16,
107
108 /* MMC */
109 GPIO6_MMC_CLK,
110 GPIO8_MMC_CS0,
111
112 /* wakeup */
113 GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
114};
1da177e4
LT		 115
116#define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
117
118void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
119{
120 unsigned long flags;
121
122 local_irq_save(flags);
123 LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask);
124 local_irq_restore(flags);
125}
126EXPORT_SYMBOL(lubbock_set_misc_wr);
127
128static unsigned long lubbock_irq_enabled;
129
130static void lubbock_mask_irq(unsigned int irq)
131{
132 int lubbock_irq = (irq - LUBBOCK_IRQ(0));
133 LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
134}
135
136static void lubbock_unmask_irq(unsigned int irq)
137{
138 int lubbock_irq = (irq - LUBBOCK_IRQ(0));
139 /* the irq can be acknowledged only if deasserted, so it's done here */
140 LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
141 LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
142}
143
38c677cb
DB		 144static struct irq_chip lubbock_irq_chip = {
145 .name = "FPGA",
1da177e4
LT		 146 .ack = lubbock_mask_irq,
147 .mask = lubbock_mask_irq,
148 .unmask = lubbock_unmask_irq,
149};
150
10dd5ce2 151static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
1da177e4
LT		 152{
153 unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
154 do {
155 GEDR(0) = GPIO_bit(0); /* clear our parent irq */
156 if (likely(pending)) {
157 irq = LUBBOCK_IRQ(0) + __ffs(pending);
158 desc = irq_desc + irq;
0cd61b68 159 desc_handle_irq(irq, desc);
1da177e4
LT		 160 }
161 pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
162 } while (pending);
163}
164
165static void __init lubbock_init_irq(void)
166{
167 int irq;
168
cd49104d 169 pxa25x_init_irq();
1da177e4
LT		 170
171 /* setup extra lubbock irqs */
172 for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
173 set_irq_chip(irq, &lubbock_irq_chip);
10dd5ce2 174 set_irq_handler(irq, handle_level_irq);
1da177e4
LT		 175 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
176 }
177
178 set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
6cab4860 179 set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
1da177e4
LT		 180}
181
22f11c4e
NP		 182#ifdef CONFIG_PM
183
184static int lubbock_irq_resume(struct sys_device *dev)
185{
186 LUB_IRQ_MASK_EN = lubbock_irq_enabled;
187 return 0;
188}
189
190static struct sysdev_class lubbock_irq_sysclass = {
af5ca3f4 191 .name = "cpld_irq",
22f11c4e
NP		 192 .resume = lubbock_irq_resume,
193};
194
195static struct sys_device lubbock_irq_device = {
196 .cls = &lubbock_irq_sysclass,
197};
198
199static int __init lubbock_irq_device_init(void)
200{
16f159b1
RK		 201 int ret = -ENODEV;
202
203 if (machine_is_lubbock()) {
204 ret = sysdev_class_register(&lubbock_irq_sysclass);
205 if (ret == 0)
206 ret = sysdev_register(&lubbock_irq_device);
207 }
22f11c4e
NP		 208 return ret;
209}
210
211device_initcall(lubbock_irq_device_init);
212
213#endif
214
1da177e4
LT		 215static int lubbock_udc_is_connected(void)
216{
217 return (LUB_MISC_RD & (1 << 9)) == 0;
218}
219
220static struct pxa2xx_udc_mach_info udc_info __initdata = {
221 .udc_is_connected = lubbock_udc_is_connected,
222 // no D+ pullup; lubbock can't connect/disconnect in software
223};
224
225static struct resource sa1111_resources[] = {
226 [0] = {
227 .start = 0x10000000,
228 .end = 0x10001fff,
229 .flags = IORESOURCE_MEM,
230 },
231 [1] = {
232 .start = LUBBOCK_SA1111_IRQ,
233 .end = LUBBOCK_SA1111_IRQ,
234 .flags = IORESOURCE_IRQ,
235 },
236};
237
238static struct platform_device sa1111_device = {
239 .name = "sa1111",
240 .id = -1,
241 .num_resources = ARRAY_SIZE(sa1111_resources),
242 .resource = sa1111_resources,
243};
244
9df5db80
DB		 245/* ADS7846 is connected through SSP ... and if your board has J5 populated,
246 * you can select it to replace the ucb1400 by switching the touchscreen cable
247 * (to J5) and poking board registers (as done below). Else it's only useful
248 * for the temperature sensors.
249 */
9df5db80 250static struct pxa2xx_spi_master pxa_ssp_master_info = {
1f4de5a0 251 .num_chipselect = 1,
9df5db80
DB		 252};
253
9df5db80
DB		 254static int lubbock_ads7846_pendown_state(void)
255{
256 /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
257 return 0;
258}
259
260static struct ads7846_platform_data ads_info = {
261 .model = 7846,
262 .vref_delay_usecs = 100, /* internal, no cap */
263 .get_pendown_state = lubbock_ads7846_pendown_state,
264 // .x_plate_ohms = 500, /* GUESS! */
265 // .y_plate_ohms = 500, /* GUESS! */
266};
267
268static void ads7846_cs(u32 command)
269{
270 static const unsigned TS_nCS = 1 << 11;
271 lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
272}
273
274static struct pxa2xx_spi_chip ads_hw = {
275 .tx_threshold = 1,
276 .rx_threshold = 2,
277 .cs_control = ads7846_cs,
278};
279
280static struct spi_board_info spi_board_info[] __initdata = { {
281 .modalias = "ads7846",
282 .platform_data = &ads_info,
283 .controller_data = &ads_hw,
284 .irq = LUBBOCK_BB_IRQ,
285 .max_speed_hz = 120000 /* max sample rate at 3V */
286 * 26 /* command + data + overhead */,
287 .bus_num = 1,
288 .chip_select = 0,
289},
290};
291
e21e2d46
RK		 292static struct resource smc91x_resources[] = {
293 [0] = {
294 .name = "smc91x-regs",
295 .start = 0x0c000c00,
296 .end = 0x0c0fffff,
297 .flags = IORESOURCE_MEM,
298 },
299 [1] = {
300 .start = LUBBOCK_ETH_IRQ,
301 .end = LUBBOCK_ETH_IRQ,
302 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
303 },
304 [2] = {
305 .name = "smc91x-attrib",
306 .start = 0x0e000000,
307 .end = 0x0e0fffff,
308 .flags = IORESOURCE_MEM,
309 },
310};
311
3aed74cd
EM		 312static struct smc91x_platdata lubbock_smc91x_info = {
313 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_2,
314};
315
1da177e4
LT		 316static struct platform_device smc91x_device = {
317 .name = "smc91x",
318 .id = -1,
319 .num_resources = ARRAY_SIZE(smc91x_resources),
320 .resource = smc91x_resources,
3aed74cd
EM		 321 .dev = {
322 .platform_data = &lubbock_smc91x_info,
323 },
1da177e4
LT		 324};
325
74ec71e1
TP		 326static struct resource flash_resources[] = {
327 [0] = {
328 .start = 0x00000000,
329 .end = SZ_64M - 1,
330 .flags = IORESOURCE_MEM,
331 },
332 [1] = {
333 .start = 0x04000000,
334 .end = 0x04000000 + SZ_64M - 1,
335 .flags = IORESOURCE_MEM,
336 },
337};
338
339static struct mtd_partition lubbock_partitions[] = {
340 {
341 .name = "Bootloader",
342 .size = 0x00040000,
343 .offset = 0,
344 .mask_flags = MTD_WRITEABLE /* force read-only */
345 },{
346 .name = "Kernel",
347 .size = 0x00100000,
348 .offset = 0x00040000,
349 },{
350 .name = "Filesystem",
351 .size = MTDPART_SIZ_FULL,
352 .offset = 0x00140000
353 }
354};
355
356static struct flash_platform_data lubbock_flash_data[2] = {
357 {
358 .map_name = "cfi_probe",
359 .parts = lubbock_partitions,
360 .nr_parts = ARRAY_SIZE(lubbock_partitions),
361 }, {
362 .map_name = "cfi_probe",
363 .parts = NULL,
364 .nr_parts = 0,
365 }
366};
367
368static struct platform_device lubbock_flash_device[2] = {
369 {
370 .name = "pxa2xx-flash",
371 .id = 0,
372 .dev = {
373 .platform_data = &lubbock_flash_data[0],
374 },
375 .resource = &flash_resources[0],
376 .num_resources = 1,
377 },
378 {
379 .name = "pxa2xx-flash",
380 .id = 1,
381 .dev = {
382 .platform_data = &lubbock_flash_data[1],
383 },
384 .resource = &flash_resources[1],
385 .num_resources = 1,
386 },
387};
388
1da177e4
LT		 389static struct platform_device *devices[] __initdata = {
390 &sa1111_device,
391 &smc91x_device,
74ec71e1
TP		 392 &lubbock_flash_device[0],
393 &lubbock_flash_device[1],
1da177e4
LT		 394};
395
d14b272b 396static struct pxafb_mode_info sharp_lm8v31_mode = {
1da177e4
LT		 397 .pixclock = 270000,
398 .xres = 640,
399 .yres = 480,
400 .bpp = 16,
401 .hsync_len = 1,
402 .left_margin = 3,
403 .right_margin = 3,
404 .vsync_len = 1,
405 .upper_margin = 0,
406 .lower_margin = 0,
407 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
408 .cmap_greyscale = 0,
d14b272b
RP		 409};
410
411static struct pxafb_mach_info sharp_lm8v31 = {
412 .modes = &sharp_lm8v31_mode,
413 .num_modes = 1,
1da177e4
LT		 414 .cmap_inverse = 0,
415 .cmap_static = 0,
0454bd09 416 .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
ffebabe0 417 LCD_AC_BIAS_FREQ(255),
1da177e4
LT		 418};
419
85eb226c
DB		 420#define MMC_POLL_RATE msecs_to_jiffies(1000)
421
422static void lubbock_mmc_poll(unsigned long);
40220c1a 423static irq_handler_t mmc_detect_int;
85eb226c
DB		 424
425static struct timer_list mmc_timer = {
426 .function = lubbock_mmc_poll,
427};
428
429static void lubbock_mmc_poll(unsigned long data)
430{
431 unsigned long flags;
432
433 /* clear any previous irq state, then ... */
434 local_irq_save(flags);
435 LUB_IRQ_SET_CLR &= ~(1 << 0);
436 local_irq_restore(flags);
437
438 /* poll until mmc/sd card is removed */
439 if (LUB_IRQ_SET_CLR & (1 << 0))
440 mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
441 else {
2326eb98 442 (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
85eb226c
DB		 443 enable_irq(LUBBOCK_SD_IRQ);
444 }
445}
446
0cd61b68 447static irqreturn_t lubbock_detect_int(int irq, void *data)
85eb226c
DB		 448{
449 /* IRQ is level triggered; disable, and poll for removal */
450 disable_irq(irq);
451 mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
452
0cd61b68 453 return mmc_detect_int(irq, data);
85eb226c
DB		 454}
455
456static int lubbock_mci_init(struct device *dev,
40220c1a 457 irq_handler_t detect_int,
85eb226c 458 void *data)
1da177e4 459{
85eb226c
DB		 460 /* detect card insert/eject */
461 mmc_detect_int = detect_int;
462 init_timer(&mmc_timer);
463 mmc_timer.data = (unsigned long) data;
464 return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
52e405ea 465 IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
85eb226c
DB		 466}
467
468static int lubbock_mci_get_ro(struct device *dev)
469{
470 return (LUB_MISC_RD & (1 << 2)) != 0;
471}
472
473static void lubbock_mci_exit(struct device *dev, void *data)
474{
475 free_irq(LUBBOCK_SD_IRQ, data);
476 del_timer_sync(&mmc_timer);
1da177e4
LT		 477}
478
479static struct pxamci_platform_data lubbock_mci_platform_data = {
480 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
85eb226c 481 .detect_delay = 1,
1da177e4 482 .init = lubbock_mci_init,
85eb226c
DB		 483 .get_ro = lubbock_mci_get_ro,
484 .exit = lubbock_mci_exit,
1da177e4
LT		 485};
486
6f475c01
NP		 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 }
0fc3ff31 497 pxa2xx_transceiver_mode(dev, mode);
6f475c01
NP		 498 local_irq_restore(flags);
499}
500
501static struct pxaficp_platform_data lubbock_ficp_platform_data = {
502 .transceiver_cap = IR_SIRMODE | IR_FIRMODE,
503 .transceiver_mode = lubbock_irda_transceiver_mode,
504};
505
1da177e4
LT		 506static void __init lubbock_init(void)
507{
74ec71e1
TP		 508 int flashboot = (LUB_CONF_SWITCHES & 1);
509
9b02b2df 510 pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
511
c1ed406c 512 clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
1da177e4
LT		 513 pxa_set_udc_info(&udc_info);
514 set_pxa_fb_info(&sharp_lm8v31);
515 pxa_set_mci_info(&lubbock_mci_platform_data);
6f475c01 516 pxa_set_ficp_info(&lubbock_ficp_platform_data);
9f19d638 517 pxa_set_ac97_info(NULL);
74ec71e1
TP		 518
519 lubbock_flash_data[0].width = lubbock_flash_data[1].width =
520 (BOOT_DEF & 1) ? 2 : 4;
521 /* Compensate for the nROMBT switch which swaps the flash banks */
522 printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
523 flashboot?"Flash":"ROM", flashboot);
524
525 lubbock_flash_data[flashboot^1].name = "application-flash";
526 lubbock_flash_data[flashboot].name = "boot-rom";
1da177e4 527 (void) platform_add_devices(devices, ARRAY_SIZE(devices));
9df5db80 528
e172274c 529 pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
9df5db80 530 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
1da177e4
LT		 531}
532
533static struct map_desc lubbock_io_desc[] __initdata = {
6f9182eb
DS		 534 { /* CPLD */
535 .virtual = LUBBOCK_FPGA_VIRT,
536 .pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
537 .length = 0x00100000,
538 .type = MT_DEVICE
539 }
1da177e4
LT		 540};
541
542static void __init lubbock_map_io(void)
543{
544 pxa_map_io();
545 iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
546
1da177e4
LT		 547 PCFR |= PCFR_OPDE;
548}
549
550MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
e9dea0c6 551 /* Maintainer: MontaVista Software Inc. */
e9dea0c6 552 .phys_io = 0x40000000,
68070bde 553 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
e9dea0c6
RK		 554 .map_io = lubbock_map_io,
555 .init_irq = lubbock_init_irq,
1da177e4 556 .timer = &pxa_timer,
e9dea0c6 557 .init_machine = lubbock_init,
1da177e4 558MACHINE_END
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