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trizeps4.c
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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/i2c/pxa-i2c.h>
30 
31 #include <asm/types.h>
32 #include <asm/setup.h>
33 #include <asm/memory.h>
34 #include <asm/mach-types.h>
35 #include <asm/irq.h>
36 #include <asm/sizes.h>
37 
38 #include <asm/mach/arch.h>
39 #include <asm/mach/map.h>
40 #include <asm/mach/irq.h>
41 #include <asm/mach/flash.h>
42 
43 #include <mach/pxa27x.h>
44 #include <mach/trizeps4.h>
45 #include <mach/audio.h>
46 #include <linux/platform_data/video-pxafb.h>
47 #include <linux/platform_data/mmc-pxamci.h>
48 #include <linux/platform_data/irda-pxaficp.h>
49 #include <linux/platform_data/usb-ohci-pxa27x.h>
50 #include <mach/smemc.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  /* AC97 */
76  GPIO28_AC97_BITCLK,
77  GPIO29_AC97_SDATA_IN_0,
78  GPIO30_AC97_SDATA_OUT,
79  GPIO31_AC97_SYNC,
80 
81  /* LCD - 16bpp Active TFT */
82  GPIOxx_LCD_TFT_16BPP,
83 
84  /* UART */
85  GPIO9_FFUART_CTS,
86  GPIO10_FFUART_DCD,
87  GPIO16_FFUART_TXD,
88  GPIO33_FFUART_DSR,
89  GPIO38_FFUART_RI,
90  GPIO82_FFUART_DTR,
91  GPIO83_FFUART_RTS,
92  GPIO96_FFUART_RXD,
93 
94  GPIO42_BTUART_RXD,
95  GPIO43_BTUART_TXD,
96  GPIO44_BTUART_CTS,
97  GPIO45_BTUART_RTS,
98 #ifdef STATUS_LEDS_ON_STUART_PINS
99  GPIO46_GPIO,
100  GPIO47_GPIO,
101 #else
102  GPIO46_STUART_RXD,
103  GPIO47_STUART_TXD,
104 #endif
105  /* PCMCIA */
106  GPIO11_GPIO, /* TRIZEPS4_CD_IRQ */
107  GPIO13_GPIO, /* TRIZEPS4_READY_NINT */
108  GPIO48_nPOE,
109  GPIO49_nPWE,
110  GPIO50_nPIOR,
111  GPIO51_nPIOW,
112  GPIO54_nPCE_2,
113  GPIO55_nPREG,
114  GPIO56_nPWAIT,
115  GPIO57_nIOIS16,
116  GPIO102_nPCE_1,
117  GPIO104_PSKTSEL,
118 
119  /* MultiMediaCard */
120  GPIO32_MMC_CLK,
121  GPIO92_MMC_DAT_0,
122  GPIO109_MMC_DAT_1,
123  GPIO110_MMC_DAT_2,
124  GPIO111_MMC_DAT_3,
125  GPIO112_MMC_CMD,
126  GPIO12_GPIO, /* TRIZEPS4_MMC_IRQ */
127 
128  /* USB OHCI */
129  GPIO88_USBH1_PWR, /* USBHPWR1 */
130  GPIO89_USBH1_PEN, /* USBHPEN1 */
131 
132  /* I2C */
133  GPIO117_I2C_SCL,
134  GPIO118_I2C_SDA,
135 };
136 
137 static unsigned long trizeps4wl_pin_config[] __initdata = {
138  /* SSP 2 */
139  GPIO14_SSP2_SFRM,
140  GPIO19_SSP2_SCLK,
141  GPIO53_GPIO, /* TRIZEPS4_SPI_IRQ */
142  GPIO86_SSP2_RXD,
143  GPIO87_SSP2_TXD,
144 };
145 
146 /****************************************************************************
147  * ONBOARD FLASH
148  ****************************************************************************/
149 static struct mtd_partition trizeps4_partitions[] = {
150  {
151  .name = "Bootloader",
152  .offset = 0x00000000,
153  .size = 0x00040000,
154  .mask_flags = MTD_WRITEABLE /* force read-only */
155  }, {
156  .name = "Backup",
157  .offset = 0x00040000,
158  .size = 0x00040000,
159  }, {
160  .name = "Image",
161  .offset = 0x00080000,
162  .size = 0x01080000,
163  }, {
164  .name = "IPSM",
165  .offset = 0x01100000,
166  .size = 0x00e00000,
167  }, {
168  .name = "Registry",
169  .offset = 0x01f00000,
170  .size = MTDPART_SIZ_FULL,
171  }
172 };
173 
174 static struct physmap_flash_data trizeps4_flash_data[] = {
175  {
176  .width = 4, /* bankwidth in bytes */
177  .parts = trizeps4_partitions,
178  .nr_parts = ARRAY_SIZE(trizeps4_partitions)
179  }
180 };
181 
182 static struct resource flash_resource = {
183  .start = PXA_CS0_PHYS,
184  .end = PXA_CS0_PHYS + SZ_32M - 1,
185  .flags = IORESOURCE_MEM,
186 };
187 
188 static struct platform_device flash_device = {
189  .name = "physmap-flash",
190  .id = 0,
191  .dev = {
192  .platform_data = trizeps4_flash_data,
193  },
194  .resource = &flash_resource,
195  .num_resources = 1,
196 };
197 
198 /****************************************************************************
199  * DAVICOM DM9000 Ethernet
200  ****************************************************************************/
201 static struct resource dm9000_resources[] = {
202  [0] = {
203  .start = TRIZEPS4_ETH_PHYS+0x300,
204  .end = TRIZEPS4_ETH_PHYS+0x400-1,
205  .flags = IORESOURCE_MEM,
206  },
207  [1] = {
208  .start = TRIZEPS4_ETH_PHYS+0x8300,
209  .end = TRIZEPS4_ETH_PHYS+0x8400-1,
210  .flags = IORESOURCE_MEM,
211  },
212  [2] = {
213  .start = TRIZEPS4_ETH_IRQ,
214  .end = TRIZEPS4_ETH_IRQ,
215  .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
216  },
217 };
218 
219 static struct dm9000_plat_data tri_dm9000_platdata = {
220  .flags = DM9000_PLATF_32BITONLY,
221 };
222 
223 static struct platform_device dm9000_device = {
224  .name = "dm9000",
225  .id = -1,
226  .num_resources = ARRAY_SIZE(dm9000_resources),
227  .resource = dm9000_resources,
228  .dev = {
229  .platform_data = &tri_dm9000_platdata,
230  }
231 };
232 
233 /****************************************************************************
234  * LED's on GPIO pins of PXA
235  ****************************************************************************/
236 static struct gpio_led trizeps4_led[] = {
237 #ifdef STATUS_LEDS_ON_STUART_PINS
238  {
239  .name = "led0:orange:heartbeat", /* */
240  .default_trigger = "heartbeat",
241  .gpio = GPIO_HEARTBEAT_LED,
242  .active_low = 1,
243  },
244  {
245  .name = "led1:yellow:cpubusy", /* */
246  .default_trigger = "cpu-busy",
247  .gpio = GPIO_SYS_BUSY_LED,
248  .active_low = 1,
249  },
250 #endif
251 };
252 
253 static struct gpio_led_platform_data trizeps4_led_data = {
254  .leds = trizeps4_led,
255  .num_leds = ARRAY_SIZE(trizeps4_led),
256 };
257 
258 static struct platform_device leds_devices = {
259  .name = "leds-gpio",
260  .id = -1,
261  .dev = {
262  .platform_data = &trizeps4_led_data,
263  },
264 };
265 
266 static struct platform_device *trizeps4_devices[] __initdata = {
267  &flash_device,
268  &dm9000_device,
269  &leds_devices,
270 };
271 
272 static struct platform_device *trizeps4wl_devices[] __initdata = {
273  &flash_device,
274  &leds_devices,
275 };
276 
277 static short trizeps_conxs_bcr;
278 
279 /* PCCARD power switching supports only 3,3V */
280 void board_pcmcia_power(int power)
281 {
282  if (power) {
283  /* switch power on, put in reset and enable buffers */
284  trizeps_conxs_bcr |= power;
285  trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
286  trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
287  BCR_writew(trizeps_conxs_bcr);
288  /* wait a little */
289  udelay(2000);
290  /* take reset away */
291  trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
292  BCR_writew(trizeps_conxs_bcr);
293  udelay(2000);
294  } else {
295  /* put in reset */
296  trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
297  BCR_writew(trizeps_conxs_bcr);
298  udelay(1000);
299  /* switch power off */
300  trizeps_conxs_bcr &= ~0xf;
301  BCR_writew(trizeps_conxs_bcr);
302  }
303  pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
304  trizeps_conxs_bcr);
305 }
306 EXPORT_SYMBOL(board_pcmcia_power);
307 
308 /* backlight power switching for LCD panel */
309 static void board_backlight_power(int on)
310 {
311  if (on)
312  trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
313  else
314  trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
315 
316  pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
317  trizeps_conxs_bcr);
318  BCR_writew(trizeps_conxs_bcr);
319 }
320 
321 /* a I2C based RTC is known on CONXS board */
322 static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
323  { I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
324 };
325 
326 /****************************************************************************
327  * MMC card slot external to module
328  ****************************************************************************/
329 static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
330  void *data)
331 {
332  int err;
333 
334  err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
335  IRQF_DISABLED | IRQF_TRIGGER_RISING,
336  "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 
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 
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 
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 
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 
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 
540 static void __init trizeps4_map_io(void)
541 {
542  pxa27x_map_io();
543  iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
544 
545  if ((__raw_readl(MSC0) & 0x8) && (__raw_readl(BOOT_DEF) & 0x1)) {
546  /* if flash is 16 bit wide its a Trizeps4 WL */
547  __machine_arch_type = MACH_TYPE_TRIZEPS4WL;
548  trizeps4_flash_data[0].width = 2;
549  } else {
550  /* if flash is 32 bit wide its a Trizeps4 */
551  __machine_arch_type = MACH_TYPE_TRIZEPS4;
552  trizeps4_flash_data[0].width = 4;
553  }
554 }
555 
556 MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
557  /* MAINTAINER("Jürgen Schindele") */
558  .atag_offset = 0x100,
559  .init_machine = trizeps4_init,
560  .map_io = trizeps4_map_io,
561  .nr_irqs = PXA_NR_IRQS,
562  .init_irq = pxa27x_init_irq,
563  .handle_irq = pxa27x_handle_irq,
564  .timer = &pxa_timer,
565  .restart = pxa_restart,
566 MACHINE_END
567 
568 MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
569  /* MAINTAINER("Jürgen Schindele") */
570  .atag_offset = 0x100,
571  .init_machine = trizeps4_init,
572  .map_io = trizeps4_map_io,
573  .nr_irqs = PXA_NR_IRQS,
574  .init_irq = pxa27x_init_irq,
575  .handle_irq = pxa27x_handle_irq,
576  .timer = &pxa_timer,
577  .restart = pxa_restart,
578 MACHINE_END
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