1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-pxa/trizeps4.c
4 *
5 * Support for the Keith und Koep Trizeps4 Module Platform.
6 *
7 * Author: Jürgen Schindele
8 * Created: 20 02, 2006
9 * Copyright: Jürgen Schindele
10 */
11
12 #include <linux/init.h>
13 #include <linux/kernel.h>
14 #include <linux/platform_device.h>
15 #include <linux/interrupt.h>
16 #include <linux/leds.h>
17 #include <linux/export.h>
18 #include <linux/sched.h>
19 #include <linux/bitops.h>
20 #include <linux/fb.h>
21 #include <linux/ioport.h>
22 #include <linux/delay.h>
23 #include <linux/gpio.h>
24 #include <linux/dm9000.h>
25 #include <linux/mtd/physmap.h>
26 #include <linux/mtd/partitions.h>
27 #include <linux/regulator/machine.h>
28 #include <linux/platform_data/i2c-pxa.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 <linux/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 "pxa27x.h"
43 #include <mach/trizeps4.h>
44 #include <mach/audio.h>
45 #include <linux/platform_data/video-pxafb.h>
46 #include <linux/platform_data/mmc-pxamci.h>
47 #include <linux/platform_data/irda-pxaficp.h>
48 #include <linux/platform_data/usb-ohci-pxa27x.h>
49 #include <mach/smemc.h>
50
51 #include "generic.h"
52 #include "devices.h"
53
54 /* comment out the following line if you want to use the
55 * Standard UART from PXA for serial / irda transmission
56 * and acivate it if you have status leds connected */
57 #define STATUS_LEDS_ON_STUART_PINS 1
58
59 /*****************************************************************************
60 * MultiFunctionPins of CPU
61 *****************************************************************************/
62 static unsigned long trizeps4_pin_config[] __initdata = {
63 /* Chip Selects */
64 GPIO15_nCS_1, /* DiskOnChip CS */
65 GPIO93_GPIO, /* TRIZEPS4_DOC_IRQ */
66 GPIO94_GPIO, /* DOC lock */
67
68 GPIO78_nCS_2, /* DM9000 CS */
69 GPIO101_GPIO, /* TRIZEPS4_ETH_IRQ */
70
71 GPIO79_nCS_3, /* Logic CS */
72 GPIO0_GPIO | WAKEUP_ON_EDGE_RISE, /* Logic irq */
73
74 /* AC97 */
75 GPIO28_AC97_BITCLK,
76 GPIO29_AC97_SDATA_IN_0,
77 GPIO30_AC97_SDATA_OUT,
78 GPIO31_AC97_SYNC,
79
80 /* LCD - 16bpp Active TFT */
81 GPIOxx_LCD_TFT_16BPP,
82
83 /* UART */
84 GPIO9_FFUART_CTS,
85 GPIO10_FFUART_DCD,
86 GPIO16_FFUART_TXD,
87 GPIO33_FFUART_DSR,
88 GPIO38_FFUART_RI,
89 GPIO82_FFUART_DTR,
90 GPIO83_FFUART_RTS,
91 GPIO96_FFUART_RXD,
92
93 GPIO42_BTUART_RXD,
94 GPIO43_BTUART_TXD,
95 GPIO44_BTUART_CTS,
96 GPIO45_BTUART_RTS,
97 #ifdef STATUS_LEDS_ON_STUART_PINS
98 GPIO46_GPIO,
99 GPIO47_GPIO,
100 #else
101 GPIO46_STUART_RXD,
102 GPIO47_STUART_TXD,
103 #endif
104 /* PCMCIA */
105 GPIO11_GPIO, /* TRIZEPS4_CD_IRQ */
106 GPIO13_GPIO, /* TRIZEPS4_READY_NINT */
107 GPIO48_nPOE,
108 GPIO49_nPWE,
109 GPIO50_nPIOR,
110 GPIO51_nPIOW,
111 GPIO54_nPCE_2,
112 GPIO55_nPREG,
113 GPIO56_nPWAIT,
114 GPIO57_nIOIS16,
115 GPIO102_nPCE_1,
116 GPIO104_PSKTSEL,
117
118 /* MultiMediaCard */
119 GPIO32_MMC_CLK,
120 GPIO92_MMC_DAT_0,
121 GPIO109_MMC_DAT_1,
122 GPIO110_MMC_DAT_2,
123 GPIO111_MMC_DAT_3,
124 GPIO112_MMC_CMD,
125 GPIO12_GPIO, /* TRIZEPS4_MMC_IRQ */
126
127 /* USB OHCI */
128 GPIO88_USBH1_PWR, /* USBHPWR1 */
129 GPIO89_USBH1_PEN, /* USBHPEN1 */
130
131 /* I2C */
132 GPIO117_I2C_SCL,
133 GPIO118_I2C_SDA,
134 };
135
136 static unsigned long trizeps4wl_pin_config[] __initdata = {
137 /* SSP 2 */
138 GPIO14_SSP2_SFRM,
139 GPIO19_SSP2_SCLK,
140 GPIO53_GPIO, /* TRIZEPS4_SPI_IRQ */
141 GPIO86_SSP2_RXD,
142 GPIO87_SSP2_TXD,
143 };
144
145 /****************************************************************************
146 * ONBOARD FLASH
147 ****************************************************************************/
148 static struct mtd_partition trizeps4_partitions[] = {
149 {
150 .name = "Bootloader",
151 .offset = 0x00000000,
152 .size = 0x00040000,
153 .mask_flags = MTD_WRITEABLE /* force read-only */
154 }, {
155 .name = "Backup",
156 .offset = 0x00040000,
157 .size = 0x00040000,
158 }, {
159 .name = "Image",
160 .offset = 0x00080000,
161 .size = 0x01080000,
162 }, {
163 .name = "IPSM",
164 .offset = 0x01100000,
165 .size = 0x00e00000,
166 }, {
167 .name = "Registry",
168 .offset = 0x01f00000,
169 .size = MTDPART_SIZ_FULL,
170 }
171 };
172
173 static struct physmap_flash_data trizeps4_flash_data[] = {
174 {
175 .width = 4, /* bankwidth in bytes */
176 .parts = trizeps4_partitions,
177 .nr_parts = ARRAY_SIZE(trizeps4_partitions)
178 }
179 };
180
181 static struct resource flash_resource = {
182 .start = PXA_CS0_PHYS,
183 .end = PXA_CS0_PHYS + SZ_32M - 1,
184 .flags = IORESOURCE_MEM,
185 };
186
187 static struct platform_device flash_device = {
188 .name = "physmap-flash",
189 .id = 0,
190 .dev = {
191 .platform_data = trizeps4_flash_data,
192 },
193 .resource = &flash_resource,
194 .num_resources = 1,
195 };
196
197 /****************************************************************************
198 * DAVICOM DM9000 Ethernet
199 ****************************************************************************/
200 static struct resource dm9000_resources[] = {
201 [0] = {
202 .start = TRIZEPS4_ETH_PHYS+0x300,
203 .end = TRIZEPS4_ETH_PHYS+0x400-1,
204 .flags = IORESOURCE_MEM,
205 },
206 [1] = {
207 .start = TRIZEPS4_ETH_PHYS+0x8300,
208 .end = TRIZEPS4_ETH_PHYS+0x8400-1,
209 .flags = IORESOURCE_MEM,
210 },
211 [2] = {
212 .start = TRIZEPS4_ETH_IRQ,
213 .end = TRIZEPS4_ETH_IRQ,
214 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
215 },
216 };
217
218 static struct dm9000_plat_data tri_dm9000_platdata = {
219 .flags = DM9000_PLATF_32BITONLY,
220 };
221
222 static struct platform_device dm9000_device = {
223 .name = "dm9000",
224 .id = -1,
225 .num_resources = ARRAY_SIZE(dm9000_resources),
226 .resource = dm9000_resources,
227 .dev = {
228 .platform_data = &tri_dm9000_platdata,
229 }
230 };
231
232 /****************************************************************************
233 * LED's on GPIO pins of PXA
234 ****************************************************************************/
235 static struct gpio_led trizeps4_led[] = {
236 #ifdef STATUS_LEDS_ON_STUART_PINS
237 {
238 .name = "led0:orange:heartbeat", /* */
239 .default_trigger = "heartbeat",
240 .gpio = GPIO_HEARTBEAT_LED,
241 .active_low = 1,
242 },
243 {
244 .name = "led1:yellow:cpubusy", /* */
245 .default_trigger = "cpu-busy",
246 .gpio = GPIO_SYS_BUSY_LED,
247 .active_low = 1,
248 },
249 #endif
250 };
251
252 static struct gpio_led_platform_data trizeps4_led_data = {
253 .leds = trizeps4_led,
254 .num_leds = ARRAY_SIZE(trizeps4_led),
255 };
256
257 static struct platform_device leds_devices = {
258 .name = "leds-gpio",
259 .id = -1,
260 .dev = {
261 .platform_data = &trizeps4_led_data,
262 },
263 };
264
265 static struct platform_device *trizeps4_devices[] __initdata = {
266 &flash_device,
267 &dm9000_device,
268 &leds_devices,
269 };
270
271 static struct platform_device *trizeps4wl_devices[] __initdata = {
272 &flash_device,
273 &leds_devices,
274 };
275
276 static short trizeps_conxs_bcr;
277
278 /* PCCARD power switching supports only 3,3V */
board_pcmcia_power(int power)279 void board_pcmcia_power(int power)
280 {
281 if (power) {
282 /* switch power on, put in reset and enable buffers */
283 trizeps_conxs_bcr |= power;
284 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
285 trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
286 BCR_writew(trizeps_conxs_bcr);
287 /* wait a little */
288 udelay(2000);
289 /* take reset away */
290 trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
291 BCR_writew(trizeps_conxs_bcr);
292 udelay(2000);
293 } else {
294 /* put in reset */
295 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
296 BCR_writew(trizeps_conxs_bcr);
297 udelay(1000);
298 /* switch power off */
299 trizeps_conxs_bcr &= ~0xf;
300 BCR_writew(trizeps_conxs_bcr);
301 }
302 pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
303 trizeps_conxs_bcr);
304 }
305 EXPORT_SYMBOL(board_pcmcia_power);
306
307 /* backlight power switching for LCD panel */
board_backlight_power(int on)308 static void board_backlight_power(int on)
309 {
310 if (on)
311 trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
312 else
313 trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
314
315 pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
316 trizeps_conxs_bcr);
317 BCR_writew(trizeps_conxs_bcr);
318 }
319
320 /* a I2C based RTC is known on CONXS board */
321 static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
322 { I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
323 };
324
325 /****************************************************************************
326 * MMC card slot external to module
327 ****************************************************************************/
trizeps4_mci_init(struct device * dev,irq_handler_t mci_detect_int,void * data)328 static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
329 void *data)
330 {
331 int err;
332
333 err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
334 IRQF_TRIGGER_RISING, "MMC card detect", data);
335 if (err) {
336 printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
337 "MMC card detect IRQ\n");
338 return -1;
339 }
340 return 0;
341 }
342
trizeps4_mci_exit(struct device * dev,void * data)343 static void trizeps4_mci_exit(struct device *dev, void *data)
344 {
345 free_irq(TRIZEPS4_MMC_IRQ, data);
346 }
347
348 static struct pxamci_platform_data trizeps4_mci_platform_data = {
349 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
350 .detect_delay_ms= 10,
351 .init = trizeps4_mci_init,
352 .exit = trizeps4_mci_exit,
353 .get_ro = NULL, /* write-protection not supported */
354 .setpower = NULL, /* power-switching not supported */
355 };
356
357 /****************************************************************************
358 * IRDA mode switching on stuart
359 ****************************************************************************/
360 #ifndef STATUS_LEDS_ON_STUART_PINS
361 static short trizeps_conxs_ircr;
362
trizeps4_irda_startup(struct device * dev)363 static int trizeps4_irda_startup(struct device *dev)
364 {
365 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
366 IRCR_writew(trizeps_conxs_ircr);
367 return 0;
368 }
369
trizeps4_irda_shutdown(struct device * dev)370 static void trizeps4_irda_shutdown(struct device *dev)
371 {
372 trizeps_conxs_ircr |= ConXS_IRCR_SD;
373 IRCR_writew(trizeps_conxs_ircr);
374 }
375
trizeps4_irda_transceiver_mode(struct device * dev,int mode)376 static void trizeps4_irda_transceiver_mode(struct device *dev, int mode)
377 {
378 unsigned long flags;
379
380 local_irq_save(flags);
381 /* Switch mode */
382 if (mode & IR_SIRMODE)
383 trizeps_conxs_ircr &= ~ConXS_IRCR_MODE; /* Slow mode */
384 else if (mode & IR_FIRMODE)
385 trizeps_conxs_ircr |= ConXS_IRCR_MODE; /* Fast mode */
386
387 /* Switch power */
388 if (mode & IR_OFF)
389 trizeps_conxs_ircr |= ConXS_IRCR_SD;
390 else
391 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
392
393 IRCR_writew(trizeps_conxs_ircr);
394 local_irq_restore(flags);
395
396 pxa2xx_transceiver_mode(dev, mode);
397 }
398
399 static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
400 .gpio_pwdown = -1,
401 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
402 .transceiver_mode = trizeps4_irda_transceiver_mode,
403 .startup = trizeps4_irda_startup,
404 .shutdown = trizeps4_irda_shutdown,
405 };
406 #endif
407
408 /****************************************************************************
409 * OHCI USB port
410 ****************************************************************************/
411 static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
412 .port_mode = PMM_PERPORT_MODE,
413 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
414 };
415
416 static struct map_desc trizeps4_io_desc[] __initdata = {
417 { /* ConXS CFSR */
418 .virtual = TRIZEPS4_CFSR_VIRT,
419 .pfn = __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
420 .length = 0x00001000,
421 .type = MT_DEVICE
422 },
423 { /* ConXS BCR */
424 .virtual = TRIZEPS4_BOCR_VIRT,
425 .pfn = __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
426 .length = 0x00001000,
427 .type = MT_DEVICE
428 },
429 { /* ConXS IRCR */
430 .virtual = TRIZEPS4_IRCR_VIRT,
431 .pfn = __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
432 .length = 0x00001000,
433 .type = MT_DEVICE
434 },
435 { /* ConXS DCR */
436 .virtual = TRIZEPS4_DICR_VIRT,
437 .pfn = __phys_to_pfn(TRIZEPS4_DICR_PHYS),
438 .length = 0x00001000,
439 .type = MT_DEVICE
440 },
441 { /* ConXS UPSR */
442 .virtual = TRIZEPS4_UPSR_VIRT,
443 .pfn = __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
444 .length = 0x00001000,
445 .type = MT_DEVICE
446 }
447 };
448
449 static struct pxafb_mode_info sharp_lcd_mode = {
450 .pixclock = 78000,
451 .xres = 640,
452 .yres = 480,
453 .bpp = 8,
454 .hsync_len = 4,
455 .left_margin = 4,
456 .right_margin = 4,
457 .vsync_len = 2,
458 .upper_margin = 0,
459 .lower_margin = 0,
460 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
461 .cmap_greyscale = 0,
462 };
463
464 static struct pxafb_mach_info sharp_lcd = {
465 .modes = &sharp_lcd_mode,
466 .num_modes = 1,
467 .lcd_conn = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
468 .cmap_inverse = 0,
469 .cmap_static = 0,
470 .pxafb_backlight_power = board_backlight_power,
471 };
472
473 static struct pxafb_mode_info toshiba_lcd_mode = {
474 .pixclock = 39720,
475 .xres = 640,
476 .yres = 480,
477 .bpp = 8,
478 .hsync_len = 63,
479 .left_margin = 12,
480 .right_margin = 12,
481 .vsync_len = 4,
482 .upper_margin = 32,
483 .lower_margin = 10,
484 .sync = 0,
485 .cmap_greyscale = 0,
486 };
487
488 static struct pxafb_mach_info toshiba_lcd = {
489 .modes = &toshiba_lcd_mode,
490 .num_modes = 1,
491 .lcd_conn = (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
492 .cmap_inverse = 0,
493 .cmap_static = 0,
494 .pxafb_backlight_power = board_backlight_power,
495 };
496
trizeps4_init(void)497 static void __init trizeps4_init(void)
498 {
499 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
500 if (machine_is_trizeps4wl()) {
501 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
502 platform_add_devices(trizeps4wl_devices,
503 ARRAY_SIZE(trizeps4wl_devices));
504 } else {
505 platform_add_devices(trizeps4_devices,
506 ARRAY_SIZE(trizeps4_devices));
507 }
508
509 pxa_set_ffuart_info(NULL);
510 pxa_set_btuart_info(NULL);
511 pxa_set_stuart_info(NULL);
512
513 if (0) /* dont know how to determine LCD */
514 pxa_set_fb_info(NULL, &sharp_lcd);
515 else
516 pxa_set_fb_info(NULL, &toshiba_lcd);
517
518 pxa_set_mci_info(&trizeps4_mci_platform_data);
519 #ifndef STATUS_LEDS_ON_STUART_PINS
520 pxa_set_ficp_info(&trizeps4_ficp_platform_data);
521 #endif
522 pxa_set_ohci_info(&trizeps4_ohci_platform_data);
523 pxa_set_ac97_info(NULL);
524 pxa_set_i2c_info(NULL);
525 i2c_register_board_info(0, trizeps4_i2c_devices,
526 ARRAY_SIZE(trizeps4_i2c_devices));
527
528 /* this is the reset value */
529 trizeps_conxs_bcr = 0x00A0;
530
531 BCR_writew(trizeps_conxs_bcr);
532 board_backlight_power(1);
533
534 regulator_has_full_constraints();
535 }
536
trizeps4_map_io(void)537 static void __init trizeps4_map_io(void)
538 {
539 pxa27x_map_io();
540 iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
541
542 if ((__raw_readl(MSC0) & 0x8) && (__raw_readl(BOOT_DEF) & 0x1)) {
543 /* if flash is 16 bit wide its a Trizeps4 WL */
544 __machine_arch_type = MACH_TYPE_TRIZEPS4WL;
545 trizeps4_flash_data[0].width = 2;
546 } else {
547 /* if flash is 32 bit wide its a Trizeps4 */
548 __machine_arch_type = MACH_TYPE_TRIZEPS4;
549 trizeps4_flash_data[0].width = 4;
550 }
551 }
552
553 MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
554 /* MAINTAINER("Jürgen Schindele") */
555 .atag_offset = 0x100,
556 .init_machine = trizeps4_init,
557 .map_io = trizeps4_map_io,
558 .nr_irqs = PXA_NR_IRQS,
559 .init_irq = pxa27x_init_irq,
560 .handle_irq = pxa27x_handle_irq,
561 .init_time = pxa_timer_init,
562 .restart = pxa_restart,
563 MACHINE_END
564
565 MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
566 /* MAINTAINER("Jürgen Schindele") */
567 .atag_offset = 0x100,
568 .init_machine = trizeps4_init,
569 .map_io = trizeps4_map_io,
570 .nr_irqs = PXA_NR_IRQS,
571 .init_irq = pxa27x_init_irq,
572 .handle_irq = pxa27x_handle_irq,
573 .init_time = pxa_timer_init,
574 .restart = pxa_restart,
575 MACHINE_END
576