32299869b352826deeed9dc1de4325d200c51eb5
[linux-2.6.git] / arch / arm / mach-pxa / trizeps4.c
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/pxa27x.h>
43 #include <mach/pxa2xx_spi.h>
44 #include <mach/trizeps4.h>
45 #include <mach/audio.h>
46 #include <mach/pxafb.h>
47 #include <mach/mmc.h>
48 #include <mach/irda.h>
49 #include <mach/ohci.h>
50 #include <plat/i2c.h>
51
52 #include "generic.h"
53 #include "devices.h"
54
55 /*      comment out the following line if you want to use the
56  *      Standard UART from PXA for serial / irda transmission
57  *      and acivate it if you have status leds connected */
58 #define STATUS_LEDS_ON_STUART_PINS 1
59
60 /*****************************************************************************
61  * MultiFunctionPins of CPU
62  *****************************************************************************/
63 static unsigned long trizeps4_pin_config[] __initdata = {
64         /* Chip Selects */
65         GPIO15_nCS_1,           /* DiskOnChip CS */
66         GPIO93_GPIO,            /* TRIZEPS4_DOC_IRQ */
67         GPIO94_GPIO,            /* DOC lock */
68
69         GPIO78_nCS_2,           /* DM9000 CS */
70         GPIO101_GPIO,           /* TRIZEPS4_ETH_IRQ */
71
72         GPIO79_nCS_3,           /* Logic CS */
73         GPIO0_GPIO | WAKEUP_ON_EDGE_RISE,       /* Logic irq */
74
75         /* LCD - 16bpp Active TFT */
76         GPIO58_LCD_LDD_0,
77         GPIO59_LCD_LDD_1,
78         GPIO60_LCD_LDD_2,
79         GPIO61_LCD_LDD_3,
80         GPIO62_LCD_LDD_4,
81         GPIO63_LCD_LDD_5,
82         GPIO64_LCD_LDD_6,
83         GPIO65_LCD_LDD_7,
84         GPIO66_LCD_LDD_8,
85         GPIO67_LCD_LDD_9,
86         GPIO68_LCD_LDD_10,
87         GPIO69_LCD_LDD_11,
88         GPIO70_LCD_LDD_12,
89         GPIO71_LCD_LDD_13,
90         GPIO72_LCD_LDD_14,
91         GPIO73_LCD_LDD_15,
92         GPIO74_LCD_FCLK,
93         GPIO75_LCD_LCLK,
94         GPIO76_LCD_PCLK,
95         GPIO77_LCD_BIAS,
96
97         /* UART */
98         GPIO9_FFUART_CTS,
99         GPIO10_FFUART_DCD,
100         GPIO16_FFUART_TXD,
101         GPIO33_FFUART_DSR,
102         GPIO38_FFUART_RI,
103         GPIO82_FFUART_DTR,
104         GPIO83_FFUART_RTS,
105         GPIO96_FFUART_RXD,
106
107         GPIO42_BTUART_RXD,
108         GPIO43_BTUART_TXD,
109         GPIO44_BTUART_CTS,
110         GPIO45_BTUART_RTS,
111 #ifdef STATUS_LEDS_ON_STUART_PINS
112         GPIO46_GPIO,
113         GPIO47_GPIO,
114 #else
115         GPIO46_STUART_RXD,
116         GPIO47_STUART_TXD,
117 #endif
118         /* PCMCIA */
119         GPIO11_GPIO,                    /* TRIZEPS4_CD_IRQ */
120         GPIO13_GPIO,                    /* TRIZEPS4_READY_NINT */
121         GPIO48_nPOE,
122         GPIO49_nPWE,
123         GPIO50_nPIOR,
124         GPIO51_nPIOW,
125         GPIO54_nPCE_2,
126         GPIO55_nPREG,
127         GPIO56_nPWAIT,
128         GPIO57_nIOIS16,
129         GPIO102_nPCE_1,
130         GPIO104_PSKTSEL,
131
132         /* MultiMediaCard */
133         GPIO32_MMC_CLK,
134         GPIO92_MMC_DAT_0,
135         GPIO109_MMC_DAT_1,
136         GPIO110_MMC_DAT_2,
137         GPIO111_MMC_DAT_3,
138         GPIO112_MMC_CMD,
139         GPIO12_GPIO,                    /* TRIZEPS4_MMC_IRQ */
140
141         /* USB OHCI */
142         GPIO88_USBH1_PWR,               /* USBHPWR1 */
143         GPIO89_USBH1_PEN,               /* USBHPEN1 */
144
145         /* I2C */
146         GPIO117_I2C_SCL,
147         GPIO118_I2C_SDA,
148 };
149
150 static unsigned long trizeps4wl_pin_config[] __initdata = {
151         /* SSP 2 */
152         GPIO14_SSP2_SFRM,
153         GPIO19_SSP2_SCLK,
154         GPIO53_GPIO,                    /* TRIZEPS4_SPI_IRQ */
155         GPIO86_SSP2_RXD,
156         GPIO87_SSP2_TXD,
157 };
158
159 /****************************************************************************
160  * ONBOARD FLASH
161  ****************************************************************************/
162 static struct mtd_partition trizeps4_partitions[] = {
163         {
164                 .name =         "Bootloader",
165                 .offset =       0x00000000,
166                 .size =         0x00040000,
167                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
168         }, {
169                 .name =         "Backup",
170                 .offset =       0x00040000,
171                 .size =         0x00040000,
172         }, {
173                 .name =         "Image",
174                 .offset =       0x00080000,
175                 .size =         0x01080000,
176         }, {
177                 .name =         "IPSM",
178                 .offset =       0x01100000,
179                 .size =         0x00e00000,
180         }, {
181                 .name =         "Registry",
182                 .offset =       0x01f00000,
183                 .size =         MTDPART_SIZ_FULL,
184         }
185 };
186
187 static struct physmap_flash_data trizeps4_flash_data[] = {
188         {
189                 .width          = 4,                    /* bankwidth in bytes */
190                 .parts          = trizeps4_partitions,
191                 .nr_parts       = ARRAY_SIZE(trizeps4_partitions)
192         }
193 };
194
195 static struct resource flash_resource = {
196         .start  = PXA_CS0_PHYS,
197         .end    = PXA_CS0_PHYS + SZ_32M - 1,
198         .flags  = IORESOURCE_MEM,
199 };
200
201 static struct platform_device flash_device = {
202         .name           = "physmap-flash",
203         .id             = 0,
204         .dev = {
205                 .platform_data = trizeps4_flash_data,
206         },
207         .resource = &flash_resource,
208         .num_resources = 1,
209 };
210
211 /****************************************************************************
212  * DAVICOM DM9000 Ethernet
213  ****************************************************************************/
214 static struct resource dm9000_resources[] = {
215         [0] = {
216                 .start  = TRIZEPS4_ETH_PHYS+0x300,
217                 .end    = TRIZEPS4_ETH_PHYS+0x400-1,
218                 .flags  = IORESOURCE_MEM,
219         },
220         [1] = {
221                 .start  = TRIZEPS4_ETH_PHYS+0x8300,
222                 .end    = TRIZEPS4_ETH_PHYS+0x8400-1,
223                 .flags  = IORESOURCE_MEM,
224         },
225         [2] = {
226                 .start  = TRIZEPS4_ETH_IRQ,
227                 .end    = TRIZEPS4_ETH_IRQ,
228                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
229         },
230 };
231
232 static struct dm9000_plat_data tri_dm9000_platdata = {
233         .flags          = DM9000_PLATF_32BITONLY,
234 };
235
236 static struct platform_device dm9000_device = {
237         .name           = "dm9000",
238         .id             = -1,
239         .num_resources  = ARRAY_SIZE(dm9000_resources),
240         .resource       = dm9000_resources,
241         .dev            = {
242                 .platform_data = &tri_dm9000_platdata,
243         }
244 };
245
246 /****************************************************************************
247  * LED's on GPIO pins of PXA
248  ****************************************************************************/
249 static struct gpio_led trizeps4_led[] = {
250 #ifdef STATUS_LEDS_ON_STUART_PINS
251         {
252                 .name = "led0:orange:heartbeat",        /* */
253                 .default_trigger = "heartbeat",
254                 .gpio = GPIO_HEARTBEAT_LED,
255                 .active_low = 1,
256         },
257         {
258                 .name = "led1:yellow:cpubusy",          /* */
259                 .default_trigger = "cpu-busy",
260                 .gpio = GPIO_SYS_BUSY_LED,
261                 .active_low = 1,
262         },
263 #endif
264 };
265
266 static struct gpio_led_platform_data trizeps4_led_data = {
267         .leds           = trizeps4_led,
268         .num_leds       = ARRAY_SIZE(trizeps4_led),
269 };
270
271 static struct platform_device leds_devices = {
272         .name           = "leds-gpio",
273         .id             = -1,
274         .dev            = {
275                 .platform_data  = &trizeps4_led_data,
276         },
277 };
278
279 static struct platform_device *trizeps4_devices[] __initdata = {
280         &flash_device,
281         &dm9000_device,
282         &leds_devices,
283 };
284
285 static struct platform_device *trizeps4wl_devices[] __initdata = {
286         &flash_device,
287         &leds_devices,
288 };
289
290 static short trizeps_conxs_bcr;
291
292 /* PCCARD power switching supports only 3,3V */
293 void board_pcmcia_power(int power)
294 {
295         if (power) {
296                 /* switch power on, put in reset and enable buffers */
297                 trizeps_conxs_bcr |= power;
298                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
299                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
300                 BCR_writew(trizeps_conxs_bcr);
301                 /* wait a little */
302                 udelay(2000);
303                 /* take reset away */
304                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
305                 BCR_writew(trizeps_conxs_bcr);
306                 udelay(2000);
307         } else {
308                 /* put in reset */
309                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
310                 BCR_writew(trizeps_conxs_bcr);
311                 udelay(1000);
312                 /* switch power off */
313                 trizeps_conxs_bcr &= ~0xf;
314                 BCR_writew(trizeps_conxs_bcr);
315         }
316         pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
317                         trizeps_conxs_bcr);
318 }
319 EXPORT_SYMBOL(board_pcmcia_power);
320
321 /* backlight power switching for LCD panel */
322 static void board_backlight_power(int on)
323 {
324         if (on)
325                 trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
326         else
327                 trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
328
329         pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
330                         trizeps_conxs_bcr);
331         BCR_writew(trizeps_conxs_bcr);
332 }
333
334 /* a I2C based RTC is known on CONXS board */
335 static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
336         { I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
337 };
338
339 /****************************************************************************
340  * MMC card slot external to module
341  ****************************************************************************/
342 static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
343                 void *data)
344 {
345         int err;
346
347         err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
348                 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_SAMPLE_RANDOM,
349                 "MMC card detect", data);
350         if (err) {
351                 printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
352                                                 "MMC card detect IRQ\n");
353                 return -1;
354         }
355         return 0;
356 }
357
358 static void trizeps4_mci_exit(struct device *dev, void *data)
359 {
360         free_irq(TRIZEPS4_MMC_IRQ, data);
361 }
362
363 static struct pxamci_platform_data trizeps4_mci_platform_data = {
364         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
365         .detect_delay   = 1,
366         .init           = trizeps4_mci_init,
367         .exit           = trizeps4_mci_exit,
368         .get_ro         = NULL, /* write-protection not supported */
369         .setpower       = NULL, /* power-switching not supported */
370         .gpio_card_detect = -1,
371         .gpio_card_ro   = -1,
372         .gpio_power     = -1,
373 };
374
375 /****************************************************************************
376  * IRDA mode switching on stuart
377  ****************************************************************************/
378 #ifndef STATUS_LEDS_ON_STUART_PINS
379 static short trizeps_conxs_ircr;
380
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
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
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
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
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