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/export.h>
20 #include <linux/sched.h>
21 #include <linux/bitops.h>
22 #include <linux/fb.h>
23 #include <linux/ioport.h>
24 #include <linux/delay.h>
25 #include <linux/gpio.h>
26 #include <linux/dm9000.h>
27 #include <linux/mtd/physmap.h>
28 #include <linux/mtd/partitions.h>
29 #include <linux/regulator/machine.h>
30 #include <linux/i2c/pxa-i2c.h>
31
32 #include <asm/types.h>
33 #include <asm/setup.h>
34 #include <asm/memory.h>
35 #include <asm/mach-types.h>
36 #include <asm/irq.h>
37 #include <asm/sizes.h>
38
39 #include <asm/mach/arch.h>
40 #include <asm/mach/map.h>
41 #include <asm/mach/irq.h>
42 #include <asm/mach/flash.h>
43
44 #include <mach/pxa27x.h>
45 #include <mach/trizeps4.h>
46 #include <mach/audio.h>
47 #include <linux/platform_data/video-pxafb.h>
48 #include <linux/platform_data/mmc-pxamci.h>
49 #include <linux/platform_data/irda-pxaficp.h>
50 #include <linux/platform_data/usb-ohci-pxa27x.h>
51 #include <mach/smemc.h>
52
53 #include "generic.h"
54 #include "devices.h"
55
56 /* comment out the following line if you want to use the
57 * Standard UART from PXA for serial / irda transmission
58 * and acivate it if you have status leds connected */
59 #define STATUS_LEDS_ON_STUART_PINS 1
60
61 /*****************************************************************************
62 * MultiFunctionPins of CPU
63 *****************************************************************************/
64 static unsigned long trizeps4_pin_config[] __initdata = {
65 /* Chip Selects */
66 GPIO15_nCS_1, /* DiskOnChip CS */
67 GPIO93_GPIO, /* TRIZEPS4_DOC_IRQ */
68 GPIO94_GPIO, /* DOC lock */
69
70 GPIO78_nCS_2, /* DM9000 CS */
71 GPIO101_GPIO, /* TRIZEPS4_ETH_IRQ */
72
73 GPIO79_nCS_3, /* Logic CS */
74 GPIO0_GPIO | WAKEUP_ON_EDGE_RISE, /* Logic irq */
75
76 /* AC97 */
77 GPIO28_AC97_BITCLK,
78 GPIO29_AC97_SDATA_IN_0,
79 GPIO30_AC97_SDATA_OUT,
80 GPIO31_AC97_SYNC,
81
82 /* LCD - 16bpp Active TFT */
83 GPIOxx_LCD_TFT_16BPP,
84
85 /* UART */
86 GPIO9_FFUART_CTS,
87 GPIO10_FFUART_DCD,
88 GPIO16_FFUART_TXD,
89 GPIO33_FFUART_DSR,
90 GPIO38_FFUART_RI,
91 GPIO82_FFUART_DTR,
92 GPIO83_FFUART_RTS,
93 GPIO96_FFUART_RXD,
94
95 GPIO42_BTUART_RXD,
96 GPIO43_BTUART_TXD,
97 GPIO44_BTUART_CTS,
98 GPIO45_BTUART_RTS,
99 #ifdef STATUS_LEDS_ON_STUART_PINS
100 GPIO46_GPIO,
101 GPIO47_GPIO,
102 #else
103 GPIO46_STUART_RXD,
104 GPIO47_STUART_TXD,
105 #endif
106 /* PCMCIA */
107 GPIO11_GPIO, /* TRIZEPS4_CD_IRQ */
108 GPIO13_GPIO, /* TRIZEPS4_READY_NINT */
109 GPIO48_nPOE,
110 GPIO49_nPWE,
111 GPIO50_nPIOR,
112 GPIO51_nPIOW,
113 GPIO54_nPCE_2,
114 GPIO55_nPREG,
115 GPIO56_nPWAIT,
116 GPIO57_nIOIS16,
117 GPIO102_nPCE_1,
118 GPIO104_PSKTSEL,
119
120 /* MultiMediaCard */
121 GPIO32_MMC_CLK,
122 GPIO92_MMC_DAT_0,
123 GPIO109_MMC_DAT_1,
124 GPIO110_MMC_DAT_2,
125 GPIO111_MMC_DAT_3,
126 GPIO112_MMC_CMD,
127 GPIO12_GPIO, /* TRIZEPS4_MMC_IRQ */
128
129 /* USB OHCI */
130 GPIO88_USBH1_PWR, /* USBHPWR1 */
131 GPIO89_USBH1_PEN, /* USBHPEN1 */
132
133 /* I2C */
134 GPIO117_I2C_SCL,
135 GPIO118_I2C_SDA,
136 };
137
138 static unsigned long trizeps4wl_pin_config[] __initdata = {
139 /* SSP 2 */
140 GPIO14_SSP2_SFRM,
141 GPIO19_SSP2_SCLK,
142 GPIO53_GPIO, /* TRIZEPS4_SPI_IRQ */
143 GPIO86_SSP2_RXD,
144 GPIO87_SSP2_TXD,
145 };
146
147 /****************************************************************************
148 * ONBOARD FLASH
149 ****************************************************************************/
150 static struct mtd_partition trizeps4_partitions[] = {
151 {
152 .name = "Bootloader",
153 .offset = 0x00000000,
154 .size = 0x00040000,
155 .mask_flags = MTD_WRITEABLE /* force read-only */
156 }, {
157 .name = "Backup",
158 .offset = 0x00040000,
159 .size = 0x00040000,
160 }, {
161 .name = "Image",
162 .offset = 0x00080000,
163 .size = 0x01080000,
164 }, {
165 .name = "IPSM",
166 .offset = 0x01100000,
167 .size = 0x00e00000,
168 }, {
169 .name = "Registry",
170 .offset = 0x01f00000,
171 .size = MTDPART_SIZ_FULL,
172 }
173 };
174
175 static struct physmap_flash_data trizeps4_flash_data[] = {
176 {
177 .width = 4, /* bankwidth in bytes */
178 .parts = trizeps4_partitions,
179 .nr_parts = ARRAY_SIZE(trizeps4_partitions)
180 }
181 };
182
183 static struct resource flash_resource = {
184 .start = PXA_CS0_PHYS,
185 .end = PXA_CS0_PHYS + SZ_32M - 1,
186 .flags = IORESOURCE_MEM,
187 };
188
189 static struct platform_device flash_device = {
190 .name = "physmap-flash",
191 .id = 0,
192 .dev = {
193 .platform_data = trizeps4_flash_data,
194 },
195 .resource = &flash_resource,
196 .num_resources = 1,
197 };
198
199 /****************************************************************************
200 * DAVICOM DM9000 Ethernet
201 ****************************************************************************/
202 static struct resource dm9000_resources[] = {
203 [0] = {
204 .start = TRIZEPS4_ETH_PHYS+0x300,
205 .end = TRIZEPS4_ETH_PHYS+0x400-1,
206 .flags = IORESOURCE_MEM,
207 },
208 [1] = {
209 .start = TRIZEPS4_ETH_PHYS+0x8300,
210 .end = TRIZEPS4_ETH_PHYS+0x8400-1,
211 .flags = IORESOURCE_MEM,
212 },
213 [2] = {
214 .start = TRIZEPS4_ETH_IRQ,
215 .end = TRIZEPS4_ETH_IRQ,
216 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
217 },
218 };
219
220 static struct dm9000_plat_data tri_dm9000_platdata = {
221 .flags = DM9000_PLATF_32BITONLY,
222 };
223
224 static struct platform_device dm9000_device = {
225 .name = "dm9000",
226 .id = -1,
227 .num_resources = ARRAY_SIZE(dm9000_resources),
228 .resource = dm9000_resources,
229 .dev = {
230 .platform_data = &tri_dm9000_platdata,
231 }
232 };
233
234 /****************************************************************************
235 * LED's on GPIO pins of PXA
236 ****************************************************************************/
237 static struct gpio_led trizeps4_led[] = {
238 #ifdef STATUS_LEDS_ON_STUART_PINS
239 {
240 .name = "led0:orange:heartbeat", /* */
241 .default_trigger = "heartbeat",
242 .gpio = GPIO_HEARTBEAT_LED,
243 .active_low = 1,
244 },
245 {
246 .name = "led1:yellow:cpubusy", /* */
247 .default_trigger = "cpu-busy",
248 .gpio = GPIO_SYS_BUSY_LED,
249 .active_low = 1,
250 },
251 #endif
252 };
253
254 static struct gpio_led_platform_data trizeps4_led_data = {
255 .leds = trizeps4_led,
256 .num_leds = ARRAY_SIZE(trizeps4_led),
257 };
258
259 static struct platform_device leds_devices = {
260 .name = "leds-gpio",
261 .id = -1,
262 .dev = {
263 .platform_data = &trizeps4_led_data,
264 },
265 };
266
267 static struct platform_device *trizeps4_devices[] __initdata = {
268 &flash_device,
269 &dm9000_device,
270 &leds_devices,
271 };
272
273 static struct platform_device *trizeps4wl_devices[] __initdata = {
274 &flash_device,
275 &leds_devices,
276 };
277
278 static short trizeps_conxs_bcr;
279
280 /* PCCARD power switching supports only 3,3V */
board_pcmcia_power(int power)281 void board_pcmcia_power(int power)
282 {
283 if (power) {
284 /* switch power on, put in reset and enable buffers */
285 trizeps_conxs_bcr |= power;
286 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
287 trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
288 BCR_writew(trizeps_conxs_bcr);
289 /* wait a little */
290 udelay(2000);
291 /* take reset away */
292 trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
293 BCR_writew(trizeps_conxs_bcr);
294 udelay(2000);
295 } else {
296 /* put in reset */
297 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
298 BCR_writew(trizeps_conxs_bcr);
299 udelay(1000);
300 /* switch power off */
301 trizeps_conxs_bcr &= ~0xf;
302 BCR_writew(trizeps_conxs_bcr);
303 }
304 pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
305 trizeps_conxs_bcr);
306 }
307 EXPORT_SYMBOL(board_pcmcia_power);
308
309 /* backlight power switching for LCD panel */
board_backlight_power(int on)310 static void board_backlight_power(int on)
311 {
312 if (on)
313 trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
314 else
315 trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
316
317 pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
318 trizeps_conxs_bcr);
319 BCR_writew(trizeps_conxs_bcr);
320 }
321
322 /* a I2C based RTC is known on CONXS board */
323 static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
324 { I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
325 };
326
327 /****************************************************************************
328 * MMC card slot external to module
329 ****************************************************************************/
trizeps4_mci_init(struct device * dev,irq_handler_t mci_detect_int,void * data)330 static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
331 void *data)
332 {
333 int err;
334
335 err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
336 IRQF_TRIGGER_RISING, "MMC card detect", data);
337 if (err) {
338 printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
339 "MMC card detect IRQ\n");
340 return -1;
341 }
342 return 0;
343 }
344
trizeps4_mci_exit(struct device * dev,void * data)345 static void trizeps4_mci_exit(struct device *dev, void *data)
346 {
347 free_irq(TRIZEPS4_MMC_IRQ, data);
348 }
349
350 static struct pxamci_platform_data trizeps4_mci_platform_data = {
351 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
352 .detect_delay_ms= 10,
353 .init = trizeps4_mci_init,
354 .exit = trizeps4_mci_exit,
355 .get_ro = NULL, /* write-protection not supported */
356 .setpower = NULL, /* power-switching not supported */
357 .gpio_card_detect = -1,
358 .gpio_card_ro = -1,
359 .gpio_power = -1,
360 };
361
362 /****************************************************************************
363 * IRDA mode switching on stuart
364 ****************************************************************************/
365 #ifndef STATUS_LEDS_ON_STUART_PINS
366 static short trizeps_conxs_ircr;
367
trizeps4_irda_startup(struct device * dev)368 static int trizeps4_irda_startup(struct device *dev)
369 {
370 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
371 IRCR_writew(trizeps_conxs_ircr);
372 return 0;
373 }
374
trizeps4_irda_shutdown(struct device * dev)375 static void trizeps4_irda_shutdown(struct device *dev)
376 {
377 trizeps_conxs_ircr |= ConXS_IRCR_SD;
378 IRCR_writew(trizeps_conxs_ircr);
379 }
380
trizeps4_irda_transceiver_mode(struct device * dev,int mode)381 static void trizeps4_irda_transceiver_mode(struct device *dev, int mode)
382 {
383 unsigned long flags;
384
385 local_irq_save(flags);
386 /* Switch mode */
387 if (mode & IR_SIRMODE)
388 trizeps_conxs_ircr &= ~ConXS_IRCR_MODE; /* Slow mode */
389 else if (mode & IR_FIRMODE)
390 trizeps_conxs_ircr |= ConXS_IRCR_MODE; /* Fast mode */
391
392 /* Switch power */
393 if (mode & IR_OFF)
394 trizeps_conxs_ircr |= ConXS_IRCR_SD;
395 else
396 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
397
398 IRCR_writew(trizeps_conxs_ircr);
399 local_irq_restore(flags);
400
401 pxa2xx_transceiver_mode(dev, mode);
402 }
403
404 static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
405 .gpio_pwdown = -1,
406 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
407 .transceiver_mode = trizeps4_irda_transceiver_mode,
408 .startup = trizeps4_irda_startup,
409 .shutdown = trizeps4_irda_shutdown,
410 };
411 #endif
412
413 /****************************************************************************
414 * OHCI USB port
415 ****************************************************************************/
416 static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
417 .port_mode = PMM_PERPORT_MODE,
418 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
419 };
420
421 static struct map_desc trizeps4_io_desc[] __initdata = {
422 { /* ConXS CFSR */
423 .virtual = TRIZEPS4_CFSR_VIRT,
424 .pfn = __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
425 .length = 0x00001000,
426 .type = MT_DEVICE
427 },
428 { /* ConXS BCR */
429 .virtual = TRIZEPS4_BOCR_VIRT,
430 .pfn = __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
431 .length = 0x00001000,
432 .type = MT_DEVICE
433 },
434 { /* ConXS IRCR */
435 .virtual = TRIZEPS4_IRCR_VIRT,
436 .pfn = __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
437 .length = 0x00001000,
438 .type = MT_DEVICE
439 },
440 { /* ConXS DCR */
441 .virtual = TRIZEPS4_DICR_VIRT,
442 .pfn = __phys_to_pfn(TRIZEPS4_DICR_PHYS),
443 .length = 0x00001000,
444 .type = MT_DEVICE
445 },
446 { /* ConXS UPSR */
447 .virtual = TRIZEPS4_UPSR_VIRT,
448 .pfn = __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
449 .length = 0x00001000,
450 .type = MT_DEVICE
451 }
452 };
453
454 static struct pxafb_mode_info sharp_lcd_mode = {
455 .pixclock = 78000,
456 .xres = 640,
457 .yres = 480,
458 .bpp = 8,
459 .hsync_len = 4,
460 .left_margin = 4,
461 .right_margin = 4,
462 .vsync_len = 2,
463 .upper_margin = 0,
464 .lower_margin = 0,
465 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
466 .cmap_greyscale = 0,
467 };
468
469 static struct pxafb_mach_info sharp_lcd = {
470 .modes = &sharp_lcd_mode,
471 .num_modes = 1,
472 .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
473 .cmap_inverse = 0,
474 .cmap_static = 0,
475 .pxafb_backlight_power = board_backlight_power,
476 };
477
478 static struct pxafb_mode_info toshiba_lcd_mode = {
479 .pixclock = 39720,
480 .xres = 640,
481 .yres = 480,
482 .bpp = 8,
483 .hsync_len = 63,
484 .left_margin = 12,
485 .right_margin = 12,
486 .vsync_len = 4,
487 .upper_margin = 32,
488 .lower_margin = 10,
489 .sync = 0,
490 .cmap_greyscale = 0,
491 };
492
493 static struct pxafb_mach_info toshiba_lcd = {
494 .modes = &toshiba_lcd_mode,
495 .num_modes = 1,
496 .lcd_conn = (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
497 .cmap_inverse = 0,
498 .cmap_static = 0,
499 .pxafb_backlight_power = board_backlight_power,
500 };
501
trizeps4_init(void)502 static void __init trizeps4_init(void)
503 {
504 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
505 if (machine_is_trizeps4wl()) {
506 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
507 platform_add_devices(trizeps4wl_devices,
508 ARRAY_SIZE(trizeps4wl_devices));
509 } else {
510 platform_add_devices(trizeps4_devices,
511 ARRAY_SIZE(trizeps4_devices));
512 }
513
514 pxa_set_ffuart_info(NULL);
515 pxa_set_btuart_info(NULL);
516 pxa_set_stuart_info(NULL);
517
518 if (0) /* dont know how to determine LCD */
519 pxa_set_fb_info(NULL, &sharp_lcd);
520 else
521 pxa_set_fb_info(NULL, &toshiba_lcd);
522
523 pxa_set_mci_info(&trizeps4_mci_platform_data);
524 #ifndef STATUS_LEDS_ON_STUART_PINS
525 pxa_set_ficp_info(&trizeps4_ficp_platform_data);
526 #endif
527 pxa_set_ohci_info(&trizeps4_ohci_platform_data);
528 pxa_set_ac97_info(NULL);
529 pxa_set_i2c_info(NULL);
530 i2c_register_board_info(0, trizeps4_i2c_devices,
531 ARRAY_SIZE(trizeps4_i2c_devices));
532
533 /* this is the reset value */
534 trizeps_conxs_bcr = 0x00A0;
535
536 BCR_writew(trizeps_conxs_bcr);
537 board_backlight_power(1);
538
539 regulator_has_full_constraints();
540 }
541
trizeps4_map_io(void)542 static void __init trizeps4_map_io(void)
543 {
544 pxa27x_map_io();
545 iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
546
547 if ((__raw_readl(MSC0) & 0x8) && (__raw_readl(BOOT_DEF) & 0x1)) {
548 /* if flash is 16 bit wide its a Trizeps4 WL */
549 __machine_arch_type = MACH_TYPE_TRIZEPS4WL;
550 trizeps4_flash_data[0].width = 2;
551 } else {
552 /* if flash is 32 bit wide its a Trizeps4 */
553 __machine_arch_type = MACH_TYPE_TRIZEPS4;
554 trizeps4_flash_data[0].width = 4;
555 }
556 }
557
558 MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
559 /* MAINTAINER("Jürgen Schindele") */
560 .atag_offset = 0x100,
561 .init_machine = trizeps4_init,
562 .map_io = trizeps4_map_io,
563 .nr_irqs = PXA_NR_IRQS,
564 .init_irq = pxa27x_init_irq,
565 .handle_irq = pxa27x_handle_irq,
566 .init_time = pxa_timer_init,
567 .restart = pxa_restart,
568 MACHINE_END
569
570 MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
571 /* MAINTAINER("Jürgen Schindele") */
572 .atag_offset = 0x100,
573 .init_machine = trizeps4_init,
574 .map_io = trizeps4_map_io,
575 .nr_irqs = PXA_NR_IRQS,
576 .init_irq = pxa27x_init_irq,
577 .handle_irq = pxa27x_handle_irq,
578 .init_time = pxa_timer_init,
579 .restart = pxa_restart,
580 MACHINE_END
581