arch: syscalls: simplify uapi/kapi directory creation
[linux-2.6-microblaze.git] / arch / arm / mach-pxa / trizeps4.c
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 */
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 */
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  ****************************************************************************/
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
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
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
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
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
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
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