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[ARM] pxa: move pxa_gpio_mode() outside of generic gpio.c
[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>
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
51c62982 44#include <mach/pxa25x.h>
a09e64fb
RK		 45#include <mach/audio.h>
46#include <mach/lubbock.h>
47#include <mach/udc.h>
48#include <mach/irda.h>
49#include <mach/pxafb.h>
50#include <mach/mmc.h>
1da177e4
LT		 51
52#include "generic.h"
c1ed406c 53#include "clock.h"
46c41e62 54#include "devices.h"
1da177e4 55
9b02b2df 56static unsigned long lubbock_pin_config[] __initdata = {
57 GPIO15_nCS_1, /* CS1 - Flash */
4a5c5eab 58 GPIO78_nCS_2, /* CS2 - Baseboard FGPA */
9b02b2df 59 GPIO79_nCS_3, /* CS3 - SMC ethernet */
4a5c5eab 60 GPIO80_nCS_4, /* CS4 - SA1111 */
9b02b2df 61
62 /* SSP data pins */
63 GPIO23_SSP1_SCLK,
64 GPIO25_SSP1_TXD,
65 GPIO26_SSP1_RXD,
66
4a5c5eab
EM		 67 /* LCD - 16bpp DSTN */
68 GPIO58_LCD_LDD_0,
69 GPIO59_LCD_LDD_1,
70 GPIO60_LCD_LDD_2,
71 GPIO61_LCD_LDD_3,
72 GPIO62_LCD_LDD_4,
73 GPIO63_LCD_LDD_5,
74 GPIO64_LCD_LDD_6,
75 GPIO65_LCD_LDD_7,
76 GPIO66_LCD_LDD_8,
77 GPIO67_LCD_LDD_9,
78 GPIO68_LCD_LDD_10,
79 GPIO69_LCD_LDD_11,
80 GPIO70_LCD_LDD_12,
81 GPIO71_LCD_LDD_13,
82 GPIO72_LCD_LDD_14,
83 GPIO73_LCD_LDD_15,
84 GPIO74_LCD_FCLK,
85 GPIO75_LCD_LCLK,
86 GPIO76_LCD_PCLK,
87
9b02b2df 88 /* BTUART */
89 GPIO42_BTUART_RXD,
90 GPIO43_BTUART_TXD,
91 GPIO44_BTUART_CTS,
92 GPIO45_BTUART_RTS,
93
94 /* PC Card */
95 GPIO48_nPOE,
96 GPIO49_nPWE,
97 GPIO50_nPIOR,
98 GPIO51_nPIOW,
99 GPIO52_nPCE_1,
100 GPIO53_nPCE_2,
101 GPIO54_nPSKTSEL,
102 GPIO55_nPREG,
103 GPIO56_nPWAIT,
104 GPIO57_nIOIS16,
105
106 /* MMC */
107 GPIO6_MMC_CLK,
108 GPIO8_MMC_CS0,
109
110 /* wakeup */
111 GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
112};
1da177e4
LT		 113
114#define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
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(unsigned int irq)
129{
130 int lubbock_irq = (irq - LUBBOCK_IRQ(0));
131 LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
132}
133
134static void lubbock_unmask_irq(unsigned int irq)
135{
136 int lubbock_irq = (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
38c677cb
DB		 142static struct irq_chip lubbock_irq_chip = {
143 .name = "FPGA",
1da177e4
LT		 144 .ack = lubbock_mask_irq,
145 .mask = lubbock_mask_irq,
146 .unmask = lubbock_unmask_irq,
147};
148
10dd5ce2 149static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
1da177e4
LT		 150{
151 unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
152 do {
153 GEDR(0) = GPIO_bit(0); /* clear our parent irq */
154 if (likely(pending)) {
155 irq = LUBBOCK_IRQ(0) + __ffs(pending);
d8aa0251 156 generic_handle_irq(irq);
1da177e4
LT		 157 }
158 pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
159 } while (pending);
160}
161
162static void __init lubbock_init_irq(void)
163{
164 int irq;
165
cd49104d 166 pxa25x_init_irq();
1da177e4
LT		 167
168 /* setup extra lubbock irqs */
169 for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
170 set_irq_chip(irq, &lubbock_irq_chip);
10dd5ce2 171 set_irq_handler(irq, handle_level_irq);
1da177e4
LT		 172 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
173 }
174
175 set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
6cab4860 176 set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
1da177e4
LT		 177}
178
22f11c4e
NP		 179#ifdef CONFIG_PM
180
181static int lubbock_irq_resume(struct sys_device *dev)
182{
183 LUB_IRQ_MASK_EN = lubbock_irq_enabled;
184 return 0;
185}
186
187static struct sysdev_class lubbock_irq_sysclass = {
af5ca3f4 188 .name = "cpld_irq",
22f11c4e
NP		 189 .resume = lubbock_irq_resume,
190};
191
192static struct sys_device lubbock_irq_device = {
193 .cls = &lubbock_irq_sysclass,
194};
195
196static int __init lubbock_irq_device_init(void)
197{
16f159b1
RK		 198 int ret = -ENODEV;
199
200 if (machine_is_lubbock()) {
201 ret = sysdev_class_register(&lubbock_irq_sysclass);
202 if (ret == 0)
203 ret = sysdev_register(&lubbock_irq_device);
204 }
22f11c4e
NP		 205 return ret;
206}
207
208device_initcall(lubbock_irq_device_init);
209
210#endif
211
1da177e4
LT		 212static int lubbock_udc_is_connected(void)
213{
214 return (LUB_MISC_RD & (1 << 9)) == 0;
215}
216
217static struct pxa2xx_udc_mach_info udc_info __initdata = {
218 .udc_is_connected = lubbock_udc_is_connected,
219 // no D+ pullup; lubbock can't connect/disconnect in software
220};
221
222static struct resource sa1111_resources[] = {
223 [0] = {
224 .start = 0x10000000,
225 .end = 0x10001fff,
226 .flags = IORESOURCE_MEM,
227 },
228 [1] = {
229 .start = LUBBOCK_SA1111_IRQ,
230 .end = LUBBOCK_SA1111_IRQ,
231 .flags = IORESOURCE_IRQ,
232 },
233};
234
235static struct platform_device sa1111_device = {
236 .name = "sa1111",
237 .id = -1,
238 .num_resources = ARRAY_SIZE(sa1111_resources),
239 .resource = sa1111_resources,
240};
241
9df5db80
DB		 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 */
9df5db80 247static struct pxa2xx_spi_master pxa_ssp_master_info = {
1f4de5a0 248 .num_chipselect = 1,
9df5db80
DB		 249};
250
9df5db80
DB		 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
e21e2d46
RK		 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
3aed74cd
EM		 309static struct smc91x_platdata lubbock_smc91x_info = {
310 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_2,
311};
312
1da177e4
LT		 313static struct platform_device smc91x_device = {
314 .name = "smc91x",
315 .id = -1,
316 .num_resources = ARRAY_SIZE(smc91x_resources),
317 .resource = smc91x_resources,
3aed74cd
EM		 318 .dev = {
319 .platform_data = &lubbock_smc91x_info,
320 },
1da177e4
LT		 321};
322
74ec71e1
TP		 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
1da177e4
LT		 386static struct platform_device *devices[] __initdata = {
387 &sa1111_device,
388 &smc91x_device,
74ec71e1
TP		 389 &lubbock_flash_device[0],
390 &lubbock_flash_device[1],
1da177e4
LT		 391};
392
d14b272b 393static struct pxafb_mode_info sharp_lm8v31_mode = {
1da177e4
LT		 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,
d14b272b
RP		 406};
407
408static struct pxafb_mach_info sharp_lm8v31 = {
409 .modes = &sharp_lm8v31_mode,
410 .num_modes = 1,
1da177e4
LT		 411 .cmap_inverse = 0,
412 .cmap_static = 0,
0454bd09 413 .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
ffebabe0 414 LCD_AC_BIAS_FREQ(255),
1da177e4
LT		 415};
416
85eb226c
DB		 417#define MMC_POLL_RATE msecs_to_jiffies(1000)
418
419static void lubbock_mmc_poll(unsigned long);
40220c1a 420static irq_handler_t mmc_detect_int;
85eb226c
DB		 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 {
2326eb98 439 (void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
85eb226c
DB		 440 enable_irq(LUBBOCK_SD_IRQ);
441 }
442}
443
0cd61b68 444static irqreturn_t lubbock_detect_int(int irq, void *data)
85eb226c
DB		 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
0cd61b68 450 return mmc_detect_int(irq, data);
85eb226c
DB		 451}
452
453static int lubbock_mci_init(struct device *dev,
40220c1a 454 irq_handler_t detect_int,
85eb226c 455 void *data)
1da177e4 456{
85eb226c
DB		 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,
52e405ea 462 IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
85eb226c
DB		 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);
1da177e4
LT		 474}
475
476static struct pxamci_platform_data lubbock_mci_platform_data = {
477 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
85eb226c 478 .detect_delay = 1,
1da177e4 479 .init = lubbock_mci_init,
85eb226c
DB		 480 .get_ro = lubbock_mci_get_ro,
481 .exit = lubbock_mci_exit,
1da177e4
LT		 482};
483
6f475c01
NP		 484static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
485{
486 unsigned long flags;
487
488 local_irq_save(flags);
489 if (mode & IR_SIRMODE) {
490 LUB_MISC_WR &= ~(1 << 4);
491 } else if (mode & IR_FIRMODE) {
492 LUB_MISC_WR |= 1 << 4;
493 }
0fc3ff31 494 pxa2xx_transceiver_mode(dev, mode);
6f475c01
NP		 495 local_irq_restore(flags);
496}
497
498static struct pxaficp_platform_data lubbock_ficp_platform_data = {
499 .transceiver_cap = IR_SIRMODE | IR_FIRMODE,
500 .transceiver_mode = lubbock_irda_transceiver_mode,
501};
502
1da177e4
LT		 503static void __init lubbock_init(void)
504{
74ec71e1
TP		 505 int flashboot = (LUB_CONF_SWITCHES & 1);
506
9b02b2df 507 pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
508
c1ed406c 509 clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
1da177e4
LT		 510 pxa_set_udc_info(&udc_info);
511 set_pxa_fb_info(&sharp_lm8v31);
512 pxa_set_mci_info(&lubbock_mci_platform_data);
6f475c01 513 pxa_set_ficp_info(&lubbock_ficp_platform_data);
9f19d638 514 pxa_set_ac97_info(NULL);
74ec71e1
TP		 515
516 lubbock_flash_data[0].width = lubbock_flash_data[1].width =
517 (BOOT_DEF & 1) ? 2 : 4;
518 /* Compensate for the nROMBT switch which swaps the flash banks */
519 printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
520 flashboot?"Flash":"ROM", flashboot);
521
522 lubbock_flash_data[flashboot^1].name = "application-flash";
523 lubbock_flash_data[flashboot].name = "boot-rom";
1da177e4 524 (void) platform_add_devices(devices, ARRAY_SIZE(devices));
9df5db80 525
e172274c 526 pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
9df5db80 527 spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
1da177e4
LT		 528}
529
530static struct map_desc lubbock_io_desc[] __initdata = {
6f9182eb
DS		 531 { /* CPLD */
532 .virtual = LUBBOCK_FPGA_VIRT,
533 .pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
534 .length = 0x00100000,
535 .type = MT_DEVICE
536 }
1da177e4
LT		 537};
538
539static void __init lubbock_map_io(void)
540{
541 pxa_map_io();
542 iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
543
1da177e4
LT		 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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