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/sysdev.h>
19 #include <linux/interrupt.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
30 #include <asm/types.h>
31 #include <asm/setup.h>
32 #include <asm/memory.h>
33 #include <asm/mach-types.h>
34 #include <asm/irq.h>
35 #include <asm/sizes.h>
36
37 #include <asm/mach/arch.h>
38 #include <asm/mach/map.h>
39 #include <asm/mach/irq.h>
40 #include <asm/mach/flash.h>
41
42 #include <mach/hardware.h>
43 #include <mach/pxa-regs.h>
44 #include <mach/pxa2xx-regs.h>
45 #include <mach/mfp-pxa27x.h>
46 #include <mach/pxa2xx_spi.h>
47 #include <mach/trizeps4.h>
48 #include <mach/audio.h>
49 #include <mach/pxafb.h>
50 #include <mach/mmc.h>
51 #include <mach/irda.h>
52 #include <mach/ohci.h>
53 #include <mach/i2c.h>
54
55 #include "generic.h"
56 #include "devices.h"
57
58 /* comment out the following line if you want to use the
59 * Standard UART from PXA for serial / irda transmission
60 * and acivate it if you have status leds connected */
61 #define STATUS_LEDS_ON_STUART_PINS 1
62
63 /*****************************************************************************
64 * MultiFunctionPins of CPU
65 *****************************************************************************/
66 static unsigned long trizeps4_pin_config[] __initdata = {
67 /* Chip Selects */
68 GPIO15_nCS_1, /* DiskOnChip CS */
69 GPIO93_GPIO, /* TRIZEPS4_DOC_IRQ */
70 GPIO94_GPIO, /* DOC lock */
71
72 GPIO78_nCS_2, /* DM9000 CS */
73 GPIO101_GPIO, /* TRIZEPS4_ETH_IRQ */
74
75 GPIO79_nCS_3, /* Logic CS */
76 GPIO0_GPIO | WAKEUP_ON_EDGE_RISE, /* Logic irq */
77
78 /* LCD - 16bpp Active TFT */
79 GPIO58_LCD_LDD_0,
80 GPIO59_LCD_LDD_1,
81 GPIO60_LCD_LDD_2,
82 GPIO61_LCD_LDD_3,
83 GPIO62_LCD_LDD_4,
84 GPIO63_LCD_LDD_5,
85 GPIO64_LCD_LDD_6,
86 GPIO65_LCD_LDD_7,
87 GPIO66_LCD_LDD_8,
88 GPIO67_LCD_LDD_9,
89 GPIO68_LCD_LDD_10,
90 GPIO69_LCD_LDD_11,
91 GPIO70_LCD_LDD_12,
92 GPIO71_LCD_LDD_13,
93 GPIO72_LCD_LDD_14,
94 GPIO73_LCD_LDD_15,
95 GPIO74_LCD_FCLK,
96 GPIO75_LCD_LCLK,
97 GPIO76_LCD_PCLK,
98 GPIO77_LCD_BIAS,
99
100 /* UART */
101 GPIO9_FFUART_CTS,
102 GPIO10_FFUART_DCD,
103 GPIO16_FFUART_TXD,
104 GPIO33_FFUART_DSR,
105 GPIO38_FFUART_RI,
106 GPIO82_FFUART_DTR,
107 GPIO83_FFUART_RTS,
108 GPIO96_FFUART_RXD,
109
110 GPIO42_BTUART_RXD,
111 GPIO43_BTUART_TXD,
112 GPIO44_BTUART_CTS,
113 GPIO45_BTUART_RTS,
114 #ifdef STATUS_LEDS_ON_STUART_PINS
115 GPIO46_GPIO,
116 GPIO47_GPIO,
117 #else
118 GPIO46_STUART_RXD,
119 GPIO47_STUART_TXD,
120 #endif
121 /* PCMCIA */
122 GPIO11_GPIO, /* TRIZEPS4_CD_IRQ */
123 GPIO13_GPIO, /* TRIZEPS4_READY_NINT */
124 GPIO48_nPOE,
125 GPIO49_nPWE,
126 GPIO50_nPIOR,
127 GPIO51_nPIOW,
128 GPIO54_nPCE_2,
129 GPIO55_nPREG,
130 GPIO56_nPWAIT,
131 GPIO57_nIOIS16,
132 GPIO102_nPCE_1,
133 GPIO104_PSKTSEL,
134
135 /* MultiMediaCard */
136 GPIO32_MMC_CLK,
137 GPIO92_MMC_DAT_0,
138 GPIO109_MMC_DAT_1,
139 GPIO110_MMC_DAT_2,
140 GPIO111_MMC_DAT_3,
141 GPIO112_MMC_CMD,
142 GPIO12_GPIO, /* TRIZEPS4_MMC_IRQ */
143
144 /* USB OHCI */
145 GPIO88_USBH1_PWR, /* USBHPWR1 */
146 GPIO89_USBH1_PEN, /* USBHPEN1 */
147
148 /* I2C */
149 GPIO117_I2C_SCL,
150 GPIO118_I2C_SDA,
151 };
152
153 static unsigned long trizeps4wl_pin_config[] __initdata = {
154 /* SSP 2 */
155 GPIO14_SSP2_SFRM,
156 GPIO19_SSP2_SCLK,
157 GPIO53_GPIO, /* TRIZEPS4_SPI_IRQ */
158 GPIO86_SSP2_RXD,
159 GPIO87_SSP2_TXD,
160 };
161
162 /****************************************************************************
163 * ONBOARD FLASH
164 ****************************************************************************/
165 static struct mtd_partition trizeps4_partitions[] = {
166 {
167 .name = "Bootloader",
168 .offset = 0x00000000,
169 .size = 0x00040000,
170 .mask_flags = MTD_WRITEABLE /* force read-only */
171 }, {
172 .name = "Backup",
173 .offset = 0x00040000,
174 .size = 0x00040000,
175 }, {
176 .name = "Image",
177 .offset = 0x00080000,
178 .size = 0x01080000,
179 }, {
180 .name = "IPSM",
181 .offset = 0x01100000,
182 .size = 0x00e00000,
183 }, {
184 .name = "Registry",
185 .offset = 0x01f00000,
186 .size = MTDPART_SIZ_FULL,
187 }
188 };
189
190 static struct physmap_flash_data trizeps4_flash_data[] = {
191 {
192 .width = 4, /* bankwidth in bytes */
193 .parts = trizeps4_partitions,
194 .nr_parts = ARRAY_SIZE(trizeps4_partitions)
195 }
196 };
197
198 static struct resource flash_resource = {
199 .start = PXA_CS0_PHYS,
200 .end = PXA_CS0_PHYS + SZ_32M - 1,
201 .flags = IORESOURCE_MEM,
202 };
203
204 static struct platform_device flash_device = {
205 .name = "physmap-flash",
206 .id = 0,
207 .dev = {
208 .platform_data = trizeps4_flash_data,
209 },
210 .resource = &flash_resource,
211 .num_resources = 1,
212 };
213
214 /****************************************************************************
215 * DAVICOM DM9000 Ethernet
216 ****************************************************************************/
217 static struct resource dm9000_resources[] = {
218 [0] = {
219 .start = TRIZEPS4_ETH_PHYS+0x300,
220 .end = TRIZEPS4_ETH_PHYS+0x400-1,
221 .flags = IORESOURCE_MEM,
222 },
223 [1] = {
224 .start = TRIZEPS4_ETH_PHYS+0x8300,
225 .end = TRIZEPS4_ETH_PHYS+0x8400-1,
226 .flags = IORESOURCE_MEM,
227 },
228 [2] = {
229 .start = TRIZEPS4_ETH_IRQ,
230 .end = TRIZEPS4_ETH_IRQ,
231 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
232 },
233 };
234
235 static struct dm9000_plat_data tri_dm9000_platdata = {
236 .flags = DM9000_PLATF_32BITONLY,
237 };
238
239 static struct platform_device dm9000_device = {
240 .name = "dm9000",
241 .id = -1,
242 .num_resources = ARRAY_SIZE(dm9000_resources),
243 .resource = dm9000_resources,
244 .dev = {
245 .platform_data = &tri_dm9000_platdata,
246 }
247 };
248
249 /****************************************************************************
250 * LED's on GPIO pins of PXA
251 ****************************************************************************/
252 static struct gpio_led trizeps4_led[] = {
253 #ifdef STATUS_LEDS_ON_STUART_PINS
254 {
255 .name = "led0:orange:heartbeat", /* */
256 .default_trigger = "heartbeat",
257 .gpio = GPIO_HEARTBEAT_LED,
258 .active_low = 1,
259 },
260 {
261 .name = "led1:yellow:cpubusy", /* */
262 .default_trigger = "cpu-busy",
263 .gpio = GPIO_SYS_BUSY_LED,
264 .active_low = 1,
265 },
266 #endif
267 };
268
269 static struct gpio_led_platform_data trizeps4_led_data = {
270 .leds = trizeps4_led,
271 .num_leds = ARRAY_SIZE(trizeps4_led),
272 };
273
274 static struct platform_device leds_devices = {
275 .name = "leds-gpio",
276 .id = -1,
277 .dev = {
278 .platform_data = &trizeps4_led_data,
279 },
280 };
281
282 static struct platform_device *trizeps4_devices[] __initdata = {
283 &flash_device,
284 &dm9000_device,
285 &leds_devices,
286 };
287
288 static struct platform_device *trizeps4wl_devices[] __initdata = {
289 &flash_device,
290 &leds_devices,
291 };
292
293 static short trizeps_conxs_bcr;
294
295 /* PCCARD power switching supports only 3,3V */
board_pcmcia_power(int power)296 void board_pcmcia_power(int power)
297 {
298 if (power) {
299 /* switch power on, put in reset and enable buffers */
300 trizeps_conxs_bcr |= power;
301 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
302 trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
303 BCR_writew(trizeps_conxs_bcr);
304 /* wait a little */
305 udelay(2000);
306 /* take reset away */
307 trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
308 BCR_writew(trizeps_conxs_bcr);
309 udelay(2000);
310 } else {
311 /* put in reset */
312 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
313 BCR_writew(trizeps_conxs_bcr);
314 udelay(1000);
315 /* switch power off */
316 trizeps_conxs_bcr &= ~0xf;
317 BCR_writew(trizeps_conxs_bcr);
318 }
319 pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
320 trizeps_conxs_bcr);
321 }
322 EXPORT_SYMBOL(board_pcmcia_power);
323
324 /* backlight power switching for LCD panel */
board_backlight_power(int on)325 static void board_backlight_power(int on)
326 {
327 if (on)
328 trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
329 else
330 trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
331
332 pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
333 trizeps_conxs_bcr);
334 BCR_writew(trizeps_conxs_bcr);
335 }
336
337 /* a I2C based RTC is known on CONXS board */
338 static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
339 { I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
340 };
341
342 /****************************************************************************
343 * MMC card slot external to module
344 ****************************************************************************/
trizeps4_mci_init(struct device * dev,irq_handler_t mci_detect_int,void * data)345 static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
346 void *data)
347 {
348 int err;
349
350 err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
351 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_SAMPLE_RANDOM,
352 "MMC card detect", data);
353 if (err) {
354 printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
355 "MMC card detect IRQ\n");
356 return -1;
357 }
358 return 0;
359 }
360
trizeps4_mci_exit(struct device * dev,void * data)361 static void trizeps4_mci_exit(struct device *dev, void *data)
362 {
363 free_irq(TRIZEPS4_MMC_IRQ, data);
364 }
365
366 static struct pxamci_platform_data trizeps4_mci_platform_data = {
367 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
368 .detect_delay = 1,
369 .init = trizeps4_mci_init,
370 .exit = trizeps4_mci_exit,
371 .get_ro = NULL, /* write-protection not supported */
372 .setpower = NULL, /* power-switching not supported */
373 };
374
375 /****************************************************************************
376 * IRDA mode switching on stuart
377 ****************************************************************************/
378 #ifndef STATUS_LEDS_ON_STUART_PINS
379 static short trizeps_conxs_ircr;
380
trizeps4_irda_startup(struct device * dev)381 static int trizeps4_irda_startup(struct device *dev)
382 {
383 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
384 IRCR_writew(trizeps_conxs_ircr);
385 return 0;
386 }
387
trizeps4_irda_shutdown(struct device * dev)388 static void trizeps4_irda_shutdown(struct device *dev)
389 {
390 trizeps_conxs_ircr |= ConXS_IRCR_SD;
391 IRCR_writew(trizeps_conxs_ircr);
392 }
393
trizeps4_irda_transceiver_mode(struct device * dev,int mode)394 static void trizeps4_irda_transceiver_mode(struct device *dev, int mode)
395 {
396 unsigned long flags;
397
398 local_irq_save(flags);
399 /* Switch mode */
400 if (mode & IR_SIRMODE)
401 trizeps_conxs_ircr &= ~ConXS_IRCR_MODE; /* Slow mode */
402 else if (mode & IR_FIRMODE)
403 trizeps_conxs_ircr |= ConXS_IRCR_MODE; /* Fast mode */
404
405 /* Switch power */
406 if (mode & IR_OFF)
407 trizeps_conxs_ircr |= ConXS_IRCR_SD;
408 else
409 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
410
411 IRCR_writew(trizeps_conxs_ircr);
412 local_irq_restore(flags);
413
414 pxa2xx_transceiver_mode(dev, mode);
415 }
416
417 static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
418 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
419 .transceiver_mode = trizeps4_irda_transceiver_mode,
420 .startup = trizeps4_irda_startup,
421 .shutdown = trizeps4_irda_shutdown,
422 };
423 #endif
424
425 /****************************************************************************
426 * OHCI USB port
427 ****************************************************************************/
428 static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
429 .port_mode = PMM_PERPORT_MODE,
430 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
431 };
432
433 static struct map_desc trizeps4_io_desc[] __initdata = {
434 { /* ConXS CFSR */
435 .virtual = TRIZEPS4_CFSR_VIRT,
436 .pfn = __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
437 .length = 0x00001000,
438 .type = MT_DEVICE
439 },
440 { /* ConXS BCR */
441 .virtual = TRIZEPS4_BOCR_VIRT,
442 .pfn = __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
443 .length = 0x00001000,
444 .type = MT_DEVICE
445 },
446 { /* ConXS IRCR */
447 .virtual = TRIZEPS4_IRCR_VIRT,
448 .pfn = __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
449 .length = 0x00001000,
450 .type = MT_DEVICE
451 },
452 { /* ConXS DCR */
453 .virtual = TRIZEPS4_DICR_VIRT,
454 .pfn = __phys_to_pfn(TRIZEPS4_DICR_PHYS),
455 .length = 0x00001000,
456 .type = MT_DEVICE
457 },
458 { /* ConXS UPSR */
459 .virtual = TRIZEPS4_UPSR_VIRT,
460 .pfn = __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
461 .length = 0x00001000,
462 .type = MT_DEVICE
463 }
464 };
465
466 static struct pxafb_mode_info sharp_lcd_mode = {
467 .pixclock = 78000,
468 .xres = 640,
469 .yres = 480,
470 .bpp = 8,
471 .hsync_len = 4,
472 .left_margin = 4,
473 .right_margin = 4,
474 .vsync_len = 2,
475 .upper_margin = 0,
476 .lower_margin = 0,
477 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
478 .cmap_greyscale = 0,
479 };
480
481 static struct pxafb_mach_info sharp_lcd = {
482 .modes = &sharp_lcd_mode,
483 .num_modes = 1,
484 .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
485 .cmap_inverse = 0,
486 .cmap_static = 0,
487 .pxafb_backlight_power = board_backlight_power,
488 };
489
490 static struct pxafb_mode_info toshiba_lcd_mode = {
491 .pixclock = 39720,
492 .xres = 640,
493 .yres = 480,
494 .bpp = 8,
495 .hsync_len = 63,
496 .left_margin = 12,
497 .right_margin = 12,
498 .vsync_len = 4,
499 .upper_margin = 32,
500 .lower_margin = 10,
501 .sync = 0,
502 .cmap_greyscale = 0,
503 };
504
505 static struct pxafb_mach_info toshiba_lcd = {
506 .modes = &toshiba_lcd_mode,
507 .num_modes = 1,
508 .lcd_conn = (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
509 .cmap_inverse = 0,
510 .cmap_static = 0,
511 .pxafb_backlight_power = board_backlight_power,
512 };
513
trizeps4_init(void)514 static void __init trizeps4_init(void)
515 {
516 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
517 if (machine_is_trizeps4wl()) {
518 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
519 platform_add_devices(trizeps4wl_devices,
520 ARRAY_SIZE(trizeps4wl_devices));
521 } else {
522 platform_add_devices(trizeps4_devices,
523 ARRAY_SIZE(trizeps4_devices));
524 }
525
526 if (0) /* dont know how to determine LCD */
527 set_pxa_fb_info(&sharp_lcd);
528 else
529 set_pxa_fb_info(&toshiba_lcd);
530
531 pxa_set_mci_info(&trizeps4_mci_platform_data);
532 #ifndef STATUS_LEDS_ON_STUART_PINS
533 pxa_set_ficp_info(&trizeps4_ficp_platform_data);
534 #endif
535 pxa_set_ohci_info(&trizeps4_ohci_platform_data);
536 pxa_set_ac97_info(NULL);
537 pxa_set_i2c_info(NULL);
538 i2c_register_board_info(0, trizeps4_i2c_devices,
539 ARRAY_SIZE(trizeps4_i2c_devices));
540
541 #ifdef CONFIG_IDE_PXA_CF
542 /* if boot direct from compact flash dont disable power */
543 trizeps_conxs_bcr = 0x0009;
544 #else
545 /* this is the reset value */
546 trizeps_conxs_bcr = 0x00A0;
547 #endif
548 BCR_writew(trizeps_conxs_bcr);
549 board_backlight_power(1);
550 }
551
trizeps4_map_io(void)552 static void __init trizeps4_map_io(void)
553 {
554 pxa_map_io();
555 iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
556
557 if ((MSC0 & 0x8) && (BOOT_DEF & 0x1)) {
558 /* if flash is 16 bit wide its a Trizeps4 WL */
559 __machine_arch_type = MACH_TYPE_TRIZEPS4WL;
560 trizeps4_flash_data[0].width = 2;
561 } else {
562 /* if flash is 32 bit wide its a Trizeps4 */
563 __machine_arch_type = MACH_TYPE_TRIZEPS4;
564 trizeps4_flash_data[0].width = 4;
565 }
566 }
567
568 MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
569 /* MAINTAINER("Jürgen Schindele") */
570 .phys_io = 0x40000000,
571 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
572 .boot_params = TRIZEPS4_SDRAM_BASE + 0x100,
573 .init_machine = trizeps4_init,
574 .map_io = trizeps4_map_io,
575 .init_irq = pxa27x_init_irq,
576 .timer = &pxa_timer,
577 MACHINE_END
578
579 MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
580 /* MAINTAINER("Jürgen Schindele") */
581 .phys_io = 0x40000000,
582 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
583 .boot_params = TRIZEPS4_SDRAM_BASE + 0x100,
584 .init_machine = trizeps4_init,
585 .map_io = trizeps4_map_io,
586 .init_irq = pxa27x_init_irq,
587 .timer = &pxa_timer,
588 MACHINE_END
589