1 /*
2 * linux/arch/arm/mach-pxa/trizeps4.c
3 *
4 * Support for the Keith und Koep Trizeps4 Module Platform.
5 *
6 * Author: Jürgen Schindele
7 * Created: 20 02, 2006
8 * Copyright: Jürgen Schindele
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
15 #include <linux/init.h>
16 #include <linux/kernel.h>
17 #include <linux/platform_device.h>
18 #include <linux/interrupt.h>
19 #include <linux/leds.h>
20 #include <linux/export.h>
21 #include <linux/sched.h>
22 #include <linux/bitops.h>
23 #include <linux/fb.h>
24 #include <linux/ioport.h>
25 #include <linux/delay.h>
26 #include <linux/gpio.h>
27 #include <linux/dm9000.h>
28 #include <linux/mtd/physmap.h>
29 #include <linux/mtd/partitions.h>
30 #include <linux/regulator/machine.h>
31 #include <linux/i2c/pxa-i2c.h>
32
33 #include <asm/types.h>
34 #include <asm/setup.h>
35 #include <asm/memory.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 "pxa27x.h"
46 #include <mach/trizeps4.h>
47 #include <mach/audio.h>
48 #include <linux/platform_data/video-pxafb.h>
49 #include <linux/platform_data/mmc-pxamci.h>
50 #include <linux/platform_data/irda-pxaficp.h>
51 #include <linux/platform_data/usb-ohci-pxa27x.h>
52 #include <mach/smemc.h>
53
54 #include "generic.h"
55 #include "devices.h"
56
57 /* comment out the following line if you want to use the
58 * Standard UART from PXA for serial / irda transmission
59 * and acivate it if you have status leds connected */
60 #define STATUS_LEDS_ON_STUART_PINS 1
61
62 /*****************************************************************************
63 * MultiFunctionPins of CPU
64 *****************************************************************************/
65 static unsigned long trizeps4_pin_config[] __initdata = {
66 /* Chip Selects */
67 GPIO15_nCS_1, /* DiskOnChip CS */
68 GPIO93_GPIO, /* TRIZEPS4_DOC_IRQ */
69 GPIO94_GPIO, /* DOC lock */
70
71 GPIO78_nCS_2, /* DM9000 CS */
72 GPIO101_GPIO, /* TRIZEPS4_ETH_IRQ */
73
74 GPIO79_nCS_3, /* Logic CS */
75 GPIO0_GPIO | WAKEUP_ON_EDGE_RISE, /* Logic irq */
76
77 /* AC97 */
78 GPIO28_AC97_BITCLK,
79 GPIO29_AC97_SDATA_IN_0,
80 GPIO30_AC97_SDATA_OUT,
81 GPIO31_AC97_SYNC,
82
83 /* LCD - 16bpp Active TFT */
84 GPIOxx_LCD_TFT_16BPP,
85
86 /* UART */
87 GPIO9_FFUART_CTS,
88 GPIO10_FFUART_DCD,
89 GPIO16_FFUART_TXD,
90 GPIO33_FFUART_DSR,
91 GPIO38_FFUART_RI,
92 GPIO82_FFUART_DTR,
93 GPIO83_FFUART_RTS,
94 GPIO96_FFUART_RXD,
95
96 GPIO42_BTUART_RXD,
97 GPIO43_BTUART_TXD,
98 GPIO44_BTUART_CTS,
99 GPIO45_BTUART_RTS,
100 #ifdef STATUS_LEDS_ON_STUART_PINS
101 GPIO46_GPIO,
102 GPIO47_GPIO,
103 #else
104 GPIO46_STUART_RXD,
105 GPIO47_STUART_TXD,
106 #endif
107 /* PCMCIA */
108 GPIO11_GPIO, /* TRIZEPS4_CD_IRQ */
109 GPIO13_GPIO, /* TRIZEPS4_READY_NINT */
110 GPIO48_nPOE,
111 GPIO49_nPWE,
112 GPIO50_nPIOR,
113 GPIO51_nPIOW,
114 GPIO54_nPCE_2,
115 GPIO55_nPREG,
116 GPIO56_nPWAIT,
117 GPIO57_nIOIS16,
118 GPIO102_nPCE_1,
119 GPIO104_PSKTSEL,
120
121 /* MultiMediaCard */
122 GPIO32_MMC_CLK,
123 GPIO92_MMC_DAT_0,
124 GPIO109_MMC_DAT_1,
125 GPIO110_MMC_DAT_2,
126 GPIO111_MMC_DAT_3,
127 GPIO112_MMC_CMD,
128 GPIO12_GPIO, /* TRIZEPS4_MMC_IRQ */
129
130 /* USB OHCI */
131 GPIO88_USBH1_PWR, /* USBHPWR1 */
132 GPIO89_USBH1_PEN, /* USBHPEN1 */
133
134 /* I2C */
135 GPIO117_I2C_SCL,
136 GPIO118_I2C_SDA,
137 };
138
139 static unsigned long trizeps4wl_pin_config[] __initdata = {
140 /* SSP 2 */
141 GPIO14_SSP2_SFRM,
142 GPIO19_SSP2_SCLK,
143 GPIO53_GPIO, /* TRIZEPS4_SPI_IRQ */
144 GPIO86_SSP2_RXD,
145 GPIO87_SSP2_TXD,
146 };
147
148 /****************************************************************************
149 * ONBOARD FLASH
150 ****************************************************************************/
151 static struct mtd_partition trizeps4_partitions[] = {
152 {
153 .name = "Bootloader",
154 .offset = 0x00000000,
155 .size = 0x00040000,
156 .mask_flags = MTD_WRITEABLE /* force read-only */
157 }, {
158 .name = "Backup",
159 .offset = 0x00040000,
160 .size = 0x00040000,
161 }, {
162 .name = "Image",
163 .offset = 0x00080000,
164 .size = 0x01080000,
165 }, {
166 .name = "IPSM",
167 .offset = 0x01100000,
168 .size = 0x00e00000,
169 }, {
170 .name = "Registry",
171 .offset = 0x01f00000,
172 .size = MTDPART_SIZ_FULL,
173 }
174 };
175
176 static struct physmap_flash_data trizeps4_flash_data[] = {
177 {
178 .width = 4, /* bankwidth in bytes */
179 .parts = trizeps4_partitions,
180 .nr_parts = ARRAY_SIZE(trizeps4_partitions)
181 }
182 };
183
184 static struct resource flash_resource = {
185 .start = PXA_CS0_PHYS,
186 .end = PXA_CS0_PHYS + SZ_32M - 1,
187 .flags = IORESOURCE_MEM,
188 };
189
190 static struct platform_device flash_device = {
191 .name = "physmap-flash",
192 .id = 0,
193 .dev = {
194 .platform_data = trizeps4_flash_data,
195 },
196 .resource = &flash_resource,
197 .num_resources = 1,
198 };
199
200 /****************************************************************************
201 * DAVICOM DM9000 Ethernet
202 ****************************************************************************/
203 static struct resource dm9000_resources[] = {
204 [0] = {
205 .start = TRIZEPS4_ETH_PHYS+0x300,
206 .end = TRIZEPS4_ETH_PHYS+0x400-1,
207 .flags = IORESOURCE_MEM,
208 },
209 [1] = {
210 .start = TRIZEPS4_ETH_PHYS+0x8300,
211 .end = TRIZEPS4_ETH_PHYS+0x8400-1,
212 .flags = IORESOURCE_MEM,
213 },
214 [2] = {
215 .start = TRIZEPS4_ETH_IRQ,
216 .end = TRIZEPS4_ETH_IRQ,
217 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
218 },
219 };
220
221 static struct dm9000_plat_data tri_dm9000_platdata = {
222 .flags = DM9000_PLATF_32BITONLY,
223 };
224
225 static struct platform_device dm9000_device = {
226 .name = "dm9000",
227 .id = -1,
228 .num_resources = ARRAY_SIZE(dm9000_resources),
229 .resource = dm9000_resources,
230 .dev = {
231 .platform_data = &tri_dm9000_platdata,
232 }
233 };
234
235 /****************************************************************************
236 * LED's on GPIO pins of PXA
237 ****************************************************************************/
238 static struct gpio_led trizeps4_led[] = {
239 #ifdef STATUS_LEDS_ON_STUART_PINS
240 {
241 .name = "led0:orange:heartbeat", /* */
242 .default_trigger = "heartbeat",
243 .gpio = GPIO_HEARTBEAT_LED,
244 .active_low = 1,
245 },
246 {
247 .name = "led1:yellow:cpubusy", /* */
248 .default_trigger = "cpu-busy",
249 .gpio = GPIO_SYS_BUSY_LED,
250 .active_low = 1,
251 },
252 #endif
253 };
254
255 static struct gpio_led_platform_data trizeps4_led_data = {
256 .leds = trizeps4_led,
257 .num_leds = ARRAY_SIZE(trizeps4_led),
258 };
259
260 static struct platform_device leds_devices = {
261 .name = "leds-gpio",
262 .id = -1,
263 .dev = {
264 .platform_data = &trizeps4_led_data,
265 },
266 };
267
268 static struct platform_device *trizeps4_devices[] __initdata = {
269 &flash_device,
270 &dm9000_device,
271 &leds_devices,
272 };
273
274 static struct platform_device *trizeps4wl_devices[] __initdata = {
275 &flash_device,
276 &leds_devices,
277 };
278
279 static short trizeps_conxs_bcr;
280
281 /* PCCARD power switching supports only 3,3V */
board_pcmcia_power(int power)282 void board_pcmcia_power(int power)
283 {
284 if (power) {
285 /* switch power on, put in reset and enable buffers */
286 trizeps_conxs_bcr |= power;
287 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
288 trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
289 BCR_writew(trizeps_conxs_bcr);
290 /* wait a little */
291 udelay(2000);
292 /* take reset away */
293 trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
294 BCR_writew(trizeps_conxs_bcr);
295 udelay(2000);
296 } else {
297 /* put in reset */
298 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
299 BCR_writew(trizeps_conxs_bcr);
300 udelay(1000);
301 /* switch power off */
302 trizeps_conxs_bcr &= ~0xf;
303 BCR_writew(trizeps_conxs_bcr);
304 }
305 pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
306 trizeps_conxs_bcr);
307 }
308 EXPORT_SYMBOL(board_pcmcia_power);
309
310 /* backlight power switching for LCD panel */
board_backlight_power(int on)311 static void board_backlight_power(int on)
312 {
313 if (on)
314 trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
315 else
316 trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
317
318 pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
319 trizeps_conxs_bcr);
320 BCR_writew(trizeps_conxs_bcr);
321 }
322
323 /* a I2C based RTC is known on CONXS board */
324 static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
325 { I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
326 };
327
328 /****************************************************************************
329 * MMC card slot external to module
330 ****************************************************************************/
trizeps4_mci_init(struct device * dev,irq_handler_t mci_detect_int,void * data)331 static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
332 void *data)
333 {
334 int err;
335
336 err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
337 IRQF_TRIGGER_RISING, "MMC card detect", data);
338 if (err) {
339 printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
340 "MMC card detect IRQ\n");
341 return -1;
342 }
343 return 0;
344 }
345
trizeps4_mci_exit(struct device * dev,void * data)346 static void trizeps4_mci_exit(struct device *dev, void *data)
347 {
348 free_irq(TRIZEPS4_MMC_IRQ, data);
349 }
350
351 static struct pxamci_platform_data trizeps4_mci_platform_data = {
352 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
353 .detect_delay_ms= 10,
354 .init = trizeps4_mci_init,
355 .exit = trizeps4_mci_exit,
356 .get_ro = NULL, /* write-protection not supported */
357 .setpower = NULL, /* power-switching not supported */
358 .gpio_card_detect = -1,
359 .gpio_card_ro = -1,
360 .gpio_power = -1,
361 };
362
363 /****************************************************************************
364 * IRDA mode switching on stuart
365 ****************************************************************************/
366 #ifndef STATUS_LEDS_ON_STUART_PINS
367 static short trizeps_conxs_ircr;
368
trizeps4_irda_startup(struct device * dev)369 static int trizeps4_irda_startup(struct device *dev)
370 {
371 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
372 IRCR_writew(trizeps_conxs_ircr);
373 return 0;
374 }
375
trizeps4_irda_shutdown(struct device * dev)376 static void trizeps4_irda_shutdown(struct device *dev)
377 {
378 trizeps_conxs_ircr |= ConXS_IRCR_SD;
379 IRCR_writew(trizeps_conxs_ircr);
380 }
381
trizeps4_irda_transceiver_mode(struct device * dev,int mode)382 static void trizeps4_irda_transceiver_mode(struct device *dev, int mode)
383 {
384 unsigned long flags;
385
386 local_irq_save(flags);
387 /* Switch mode */
388 if (mode & IR_SIRMODE)
389 trizeps_conxs_ircr &= ~ConXS_IRCR_MODE; /* Slow mode */
390 else if (mode & IR_FIRMODE)
391 trizeps_conxs_ircr |= ConXS_IRCR_MODE; /* Fast mode */
392
393 /* Switch power */
394 if (mode & IR_OFF)
395 trizeps_conxs_ircr |= ConXS_IRCR_SD;
396 else
397 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
398
399 IRCR_writew(trizeps_conxs_ircr);
400 local_irq_restore(flags);
401
402 pxa2xx_transceiver_mode(dev, mode);
403 }
404
405 static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
406 .gpio_pwdown = -1,
407 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
408 .transceiver_mode = trizeps4_irda_transceiver_mode,
409 .startup = trizeps4_irda_startup,
410 .shutdown = trizeps4_irda_shutdown,
411 };
412 #endif
413
414 /****************************************************************************
415 * OHCI USB port
416 ****************************************************************************/
417 static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
418 .port_mode = PMM_PERPORT_MODE,
419 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
420 };
421
422 static struct map_desc trizeps4_io_desc[] __initdata = {
423 { /* ConXS CFSR */
424 .virtual = TRIZEPS4_CFSR_VIRT,
425 .pfn = __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
426 .length = 0x00001000,
427 .type = MT_DEVICE
428 },
429 { /* ConXS BCR */
430 .virtual = TRIZEPS4_BOCR_VIRT,
431 .pfn = __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
432 .length = 0x00001000,
433 .type = MT_DEVICE
434 },
435 { /* ConXS IRCR */
436 .virtual = TRIZEPS4_IRCR_VIRT,
437 .pfn = __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
438 .length = 0x00001000,
439 .type = MT_DEVICE
440 },
441 { /* ConXS DCR */
442 .virtual = TRIZEPS4_DICR_VIRT,
443 .pfn = __phys_to_pfn(TRIZEPS4_DICR_PHYS),
444 .length = 0x00001000,
445 .type = MT_DEVICE
446 },
447 { /* ConXS UPSR */
448 .virtual = TRIZEPS4_UPSR_VIRT,
449 .pfn = __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
450 .length = 0x00001000,
451 .type = MT_DEVICE
452 }
453 };
454
455 static struct pxafb_mode_info sharp_lcd_mode = {
456 .pixclock = 78000,
457 .xres = 640,
458 .yres = 480,
459 .bpp = 8,
460 .hsync_len = 4,
461 .left_margin = 4,
462 .right_margin = 4,
463 .vsync_len = 2,
464 .upper_margin = 0,
465 .lower_margin = 0,
466 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
467 .cmap_greyscale = 0,
468 };
469
470 static struct pxafb_mach_info sharp_lcd = {
471 .modes = &sharp_lcd_mode,
472 .num_modes = 1,
473 .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
474 .cmap_inverse = 0,
475 .cmap_static = 0,
476 .pxafb_backlight_power = board_backlight_power,
477 };
478
479 static struct pxafb_mode_info toshiba_lcd_mode = {
480 .pixclock = 39720,
481 .xres = 640,
482 .yres = 480,
483 .bpp = 8,
484 .hsync_len = 63,
485 .left_margin = 12,
486 .right_margin = 12,
487 .vsync_len = 4,
488 .upper_margin = 32,
489 .lower_margin = 10,
490 .sync = 0,
491 .cmap_greyscale = 0,
492 };
493
494 static struct pxafb_mach_info toshiba_lcd = {
495 .modes = &toshiba_lcd_mode,
496 .num_modes = 1,
497 .lcd_conn = (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
498 .cmap_inverse = 0,
499 .cmap_static = 0,
500 .pxafb_backlight_power = board_backlight_power,
501 };
502
trizeps4_init(void)503 static void __init trizeps4_init(void)
504 {
505 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
506 if (machine_is_trizeps4wl()) {
507 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
508 platform_add_devices(trizeps4wl_devices,
509 ARRAY_SIZE(trizeps4wl_devices));
510 } else {
511 platform_add_devices(trizeps4_devices,
512 ARRAY_SIZE(trizeps4_devices));
513 }
514
515 pxa_set_ffuart_info(NULL);
516 pxa_set_btuart_info(NULL);
517 pxa_set_stuart_info(NULL);
518
519 if (0) /* dont know how to determine LCD */
520 pxa_set_fb_info(NULL, &sharp_lcd);
521 else
522 pxa_set_fb_info(NULL, &toshiba_lcd);
523
524 pxa_set_mci_info(&trizeps4_mci_platform_data);
525 #ifndef STATUS_LEDS_ON_STUART_PINS
526 pxa_set_ficp_info(&trizeps4_ficp_platform_data);
527 #endif
528 pxa_set_ohci_info(&trizeps4_ohci_platform_data);
529 pxa_set_ac97_info(NULL);
530 pxa_set_i2c_info(NULL);
531 i2c_register_board_info(0, trizeps4_i2c_devices,
532 ARRAY_SIZE(trizeps4_i2c_devices));
533
534 /* this is the reset value */
535 trizeps_conxs_bcr = 0x00A0;
536
537 BCR_writew(trizeps_conxs_bcr);
538 board_backlight_power(1);
539
540 regulator_has_full_constraints();
541 }
542
trizeps4_map_io(void)543 static void __init trizeps4_map_io(void)
544 {
545 pxa27x_map_io();
546 iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
547
548 if ((__raw_readl(MSC0) & 0x8) && (__raw_readl(BOOT_DEF) & 0x1)) {
549 /* if flash is 16 bit wide its a Trizeps4 WL */
550 __machine_arch_type = MACH_TYPE_TRIZEPS4WL;
551 trizeps4_flash_data[0].width = 2;
552 } else {
553 /* if flash is 32 bit wide its a Trizeps4 */
554 __machine_arch_type = MACH_TYPE_TRIZEPS4;
555 trizeps4_flash_data[0].width = 4;
556 }
557 }
558
559 MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
560 /* MAINTAINER("Jürgen Schindele") */
561 .atag_offset = 0x100,
562 .init_machine = trizeps4_init,
563 .map_io = trizeps4_map_io,
564 .nr_irqs = PXA_NR_IRQS,
565 .init_irq = pxa27x_init_irq,
566 .handle_irq = pxa27x_handle_irq,
567 .init_time = pxa_timer_init,
568 .restart = pxa_restart,
569 MACHINE_END
570
571 MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
572 /* MAINTAINER("Jürgen Schindele") */
573 .atag_offset = 0x100,
574 .init_machine = trizeps4_init,
575 .map_io = trizeps4_map_io,
576 .nr_irqs = PXA_NR_IRQS,
577 .init_irq = pxa27x_init_irq,
578 .handle_irq = pxa27x_handle_irq,
579 .init_time = pxa_timer_init,
580 .restart = pxa_restart,
581 MACHINE_END
582