~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/arch/arm/mach-pxa/lpd270.c

Version: ~ [ linux-5.10-rc5 ] ~ [ linux-5.9.10 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.79 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.159 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.208 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.245 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.245 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.85 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * linux/arch/arm/mach-pxa/lpd270.c
  3  *
  4  * Support for the LogicPD PXA270 Card Engine.
  5  * Derived from the mainstone code, which carries these notices:
  6  *
  7  * Author:      Nicolas Pitre
  8  * Created:     Nov 05, 2002
  9  * Copyright:   MontaVista Software Inc.
 10  *
 11  * This program is free software; you can redistribute it and/or modify
 12  * it under the terms of the GNU General Public License version 2 as
 13  * published by the Free Software Foundation.
 14  */
 15 #include <linux/gpio.h>
 16 #include <linux/init.h>
 17 #include <linux/platform_device.h>
 18 #include <linux/syscore_ops.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/mtd/mtd.h>
 25 #include <linux/mtd/partitions.h>
 26 #include <linux/pwm.h>
 27 #include <linux/pwm_backlight.h>
 28 #include <linux/smc91x.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 <mach/hardware.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 "pxa27x.h"
 44 #include "lpd270.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 static unsigned long lpd270_pin_config[] __initdata = {
 56         /* Chip Selects */
 57         GPIO15_nCS_1,   /* Mainboard Flash */
 58         GPIO78_nCS_2,   /* CPLD + Ethernet */
 59 
 60         /* LCD - 16bpp Active TFT */
 61         GPIO58_LCD_LDD_0,
 62         GPIO59_LCD_LDD_1,
 63         GPIO60_LCD_LDD_2,
 64         GPIO61_LCD_LDD_3,
 65         GPIO62_LCD_LDD_4,
 66         GPIO63_LCD_LDD_5,
 67         GPIO64_LCD_LDD_6,
 68         GPIO65_LCD_LDD_7,
 69         GPIO66_LCD_LDD_8,
 70         GPIO67_LCD_LDD_9,
 71         GPIO68_LCD_LDD_10,
 72         GPIO69_LCD_LDD_11,
 73         GPIO70_LCD_LDD_12,
 74         GPIO71_LCD_LDD_13,
 75         GPIO72_LCD_LDD_14,
 76         GPIO73_LCD_LDD_15,
 77         GPIO74_LCD_FCLK,
 78         GPIO75_LCD_LCLK,
 79         GPIO76_LCD_PCLK,
 80         GPIO77_LCD_BIAS,
 81         GPIO16_PWM0_OUT,        /* Backlight */
 82 
 83         /* USB Host */
 84         GPIO88_USBH1_PWR,
 85         GPIO89_USBH1_PEN,
 86 
 87         /* AC97 */
 88         GPIO28_AC97_BITCLK,
 89         GPIO29_AC97_SDATA_IN_0,
 90         GPIO30_AC97_SDATA_OUT,
 91         GPIO31_AC97_SYNC,
 92         GPIO45_AC97_SYSCLK,
 93 
 94         GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
 95 };
 96 
 97 static unsigned int lpd270_irq_enabled;
 98 
 99 static void lpd270_mask_irq(struct irq_data *d)
100 {
101         int lpd270_irq = d->irq - LPD270_IRQ(0);
102 
103         __raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS);
104 
105         lpd270_irq_enabled &= ~(1 << lpd270_irq);
106         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
107 }
108 
109 static void lpd270_unmask_irq(struct irq_data *d)
110 {
111         int lpd270_irq = d->irq - LPD270_IRQ(0);
112 
113         lpd270_irq_enabled |= 1 << lpd270_irq;
114         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
115 }
116 
117 static struct irq_chip lpd270_irq_chip = {
118         .name           = "CPLD",
119         .irq_ack        = lpd270_mask_irq,
120         .irq_mask       = lpd270_mask_irq,
121         .irq_unmask     = lpd270_unmask_irq,
122 };
123 
124 static void lpd270_irq_handler(struct irq_desc *desc)
125 {
126         unsigned int irq;
127         unsigned long pending;
128 
129         pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
130         do {
131                 /* clear useless edge notification */
132                 desc->irq_data.chip->irq_ack(&desc->irq_data);
133                 if (likely(pending)) {
134                         irq = LPD270_IRQ(0) + __ffs(pending);
135                         generic_handle_irq(irq);
136 
137                         pending = __raw_readw(LPD270_INT_STATUS) &
138                                                 lpd270_irq_enabled;
139                 }
140         } while (pending);
141 }
142 
143 static void __init lpd270_init_irq(void)
144 {
145         int irq;
146 
147         pxa27x_init_irq();
148 
149         __raw_writew(0, LPD270_INT_MASK);
150         __raw_writew(0, LPD270_INT_STATUS);
151 
152         /* setup extra LogicPD PXA270 irqs */
153         for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) {
154                 irq_set_chip_and_handler(irq, &lpd270_irq_chip,
155                                          handle_level_irq);
156                 irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
157         }
158         irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lpd270_irq_handler);
159         irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
160 }
161 
162 
163 #ifdef CONFIG_PM
164 static void lpd270_irq_resume(void)
165 {
166         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
167 }
168 
169 static struct syscore_ops lpd270_irq_syscore_ops = {
170         .resume = lpd270_irq_resume,
171 };
172 
173 static int __init lpd270_irq_device_init(void)
174 {
175         if (machine_is_logicpd_pxa270()) {
176                 register_syscore_ops(&lpd270_irq_syscore_ops);
177                 return 0;
178         }
179         return -ENODEV;
180 }
181 
182 device_initcall(lpd270_irq_device_init);
183 #endif
184 
185 
186 static struct resource smc91x_resources[] = {
187         [0] = {
188                 .start  = LPD270_ETH_PHYS,
189                 .end    = (LPD270_ETH_PHYS + 0xfffff),
190                 .flags  = IORESOURCE_MEM,
191         },
192         [1] = {
193                 .start  = LPD270_ETHERNET_IRQ,
194                 .end    = LPD270_ETHERNET_IRQ,
195                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
196         },
197 };
198 
199 struct smc91x_platdata smc91x_platdata = {
200         .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
201 };
202 
203 static struct platform_device smc91x_device = {
204         .name           = "smc91x",
205         .id             = 0,
206         .num_resources  = ARRAY_SIZE(smc91x_resources),
207         .resource       = smc91x_resources,
208         .dev.platform_data = &smc91x_platdata,
209 };
210 
211 static struct resource lpd270_flash_resources[] = {
212         [0] = {
213                 .start  = PXA_CS0_PHYS,
214                 .end    = PXA_CS0_PHYS + SZ_64M - 1,
215                 .flags  = IORESOURCE_MEM,
216         },
217         [1] = {
218                 .start  = PXA_CS1_PHYS,
219                 .end    = PXA_CS1_PHYS + SZ_64M - 1,
220                 .flags  = IORESOURCE_MEM,
221         },
222 };
223 
224 static struct mtd_partition lpd270_flash0_partitions[] = {
225         {
226                 .name =         "Bootloader",
227                 .size =         0x00040000,
228                 .offset =       0,
229                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
230         }, {
231                 .name =         "Kernel",
232                 .size =         0x00400000,
233                 .offset =       0x00040000,
234         }, {
235                 .name =         "Filesystem",
236                 .size =         MTDPART_SIZ_FULL,
237                 .offset =       0x00440000
238         },
239 };
240 
241 static struct flash_platform_data lpd270_flash_data[2] = {
242         {
243                 .name           = "processor-flash",
244                 .map_name       = "cfi_probe",
245                 .parts          = lpd270_flash0_partitions,
246                 .nr_parts       = ARRAY_SIZE(lpd270_flash0_partitions),
247         }, {
248                 .name           = "mainboard-flash",
249                 .map_name       = "cfi_probe",
250                 .parts          = NULL,
251                 .nr_parts       = 0,
252         }
253 };
254 
255 static struct platform_device lpd270_flash_device[2] = {
256         {
257                 .name           = "pxa2xx-flash",
258                 .id             = 0,
259                 .dev = {
260                         .platform_data  = &lpd270_flash_data[0],
261                 },
262                 .resource       = &lpd270_flash_resources[0],
263                 .num_resources  = 1,
264         }, {
265                 .name           = "pxa2xx-flash",
266                 .id             = 1,
267                 .dev = {
268                         .platform_data  = &lpd270_flash_data[1],
269                 },
270                 .resource       = &lpd270_flash_resources[1],
271                 .num_resources  = 1,
272         },
273 };
274 
275 static struct pwm_lookup lpd270_pwm_lookup[] = {
276         PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight.0", NULL, 78770,
277                    PWM_POLARITY_NORMAL),
278 };
279 
280 static struct platform_pwm_backlight_data lpd270_backlight_data = {
281         .max_brightness = 1,
282         .dft_brightness = 1,
283         .enable_gpio    = -1,
284 };
285 
286 static struct platform_device lpd270_backlight_device = {
287         .name           = "pwm-backlight",
288         .dev            = {
289                 .parent = &pxa27x_device_pwm0.dev,
290                 .platform_data = &lpd270_backlight_data,
291         },
292 };
293 
294 /* 5.7" TFT QVGA (LoLo display number 1) */
295 static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
296         .pixclock               = 150000,
297         .xres                   = 320,
298         .yres                   = 240,
299         .bpp                    = 16,
300         .hsync_len              = 0x14,
301         .left_margin            = 0x28,
302         .right_margin           = 0x0a,
303         .vsync_len              = 0x02,
304         .upper_margin           = 0x08,
305         .lower_margin           = 0x14,
306         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
307 };
308 
309 static struct pxafb_mach_info sharp_lq057q3dc02 = {
310         .modes                  = &sharp_lq057q3dc02_mode,
311         .num_modes              = 1,
312         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
313                                   LCD_ALTERNATE_MAPPING,
314 };
315 
316 /* 12.1" TFT SVGA (LoLo display number 2) */
317 static struct pxafb_mode_info sharp_lq121s1dg31_mode = {
318         .pixclock               = 50000,
319         .xres                   = 800,
320         .yres                   = 600,
321         .bpp                    = 16,
322         .hsync_len              = 0x05,
323         .left_margin            = 0x52,
324         .right_margin           = 0x05,
325         .vsync_len              = 0x04,
326         .upper_margin           = 0x14,
327         .lower_margin           = 0x0a,
328         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
329 };
330 
331 static struct pxafb_mach_info sharp_lq121s1dg31 = {
332         .modes                  = &sharp_lq121s1dg31_mode,
333         .num_modes              = 1,
334         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
335                                   LCD_ALTERNATE_MAPPING,
336 };
337 
338 /* 3.6" TFT QVGA (LoLo display number 3) */
339 static struct pxafb_mode_info sharp_lq036q1da01_mode = {
340         .pixclock               = 150000,
341         .xres                   = 320,
342         .yres                   = 240,
343         .bpp                    = 16,
344         .hsync_len              = 0x0e,
345         .left_margin            = 0x04,
346         .right_margin           = 0x0a,
347         .vsync_len              = 0x03,
348         .upper_margin           = 0x03,
349         .lower_margin           = 0x03,
350         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
351 };
352 
353 static struct pxafb_mach_info sharp_lq036q1da01 = {
354         .modes                  = &sharp_lq036q1da01_mode,
355         .num_modes              = 1,
356         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
357                                   LCD_ALTERNATE_MAPPING,
358 };
359 
360 /* 6.4" TFT VGA (LoLo display number 5) */
361 static struct pxafb_mode_info sharp_lq64d343_mode = {
362         .pixclock               = 25000,
363         .xres                   = 640,
364         .yres                   = 480,
365         .bpp                    = 16,
366         .hsync_len              = 0x31,
367         .left_margin            = 0x89,
368         .right_margin           = 0x19,
369         .vsync_len              = 0x12,
370         .upper_margin           = 0x22,
371         .lower_margin           = 0x00,
372         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
373 };
374 
375 static struct pxafb_mach_info sharp_lq64d343 = {
376         .modes                  = &sharp_lq64d343_mode,
377         .num_modes              = 1,
378         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
379                                   LCD_ALTERNATE_MAPPING,
380 };
381 
382 /* 10.4" TFT VGA (LoLo display number 7) */
383 static struct pxafb_mode_info sharp_lq10d368_mode = {
384         .pixclock               = 25000,
385         .xres                   = 640,
386         .yres                   = 480,
387         .bpp                    = 16,
388         .hsync_len              = 0x31,
389         .left_margin            = 0x89,
390         .right_margin           = 0x19,
391         .vsync_len              = 0x12,
392         .upper_margin           = 0x22,
393         .lower_margin           = 0x00,
394         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
395 };
396 
397 static struct pxafb_mach_info sharp_lq10d368 = {
398         .modes                  = &sharp_lq10d368_mode,
399         .num_modes              = 1,
400         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
401                                   LCD_ALTERNATE_MAPPING,
402 };
403 
404 /* 3.5" TFT QVGA (LoLo display number 8) */
405 static struct pxafb_mode_info sharp_lq035q7db02_20_mode = {
406         .pixclock               = 150000,
407         .xres                   = 240,
408         .yres                   = 320,
409         .bpp                    = 16,
410         .hsync_len              = 0x0e,
411         .left_margin            = 0x0a,
412         .right_margin           = 0x0a,
413         .vsync_len              = 0x03,
414         .upper_margin           = 0x05,
415         .lower_margin           = 0x14,
416         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
417 };
418 
419 static struct pxafb_mach_info sharp_lq035q7db02_20 = {
420         .modes                  = &sharp_lq035q7db02_20_mode,
421         .num_modes              = 1,
422         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
423                                   LCD_ALTERNATE_MAPPING,
424 };
425 
426 static struct pxafb_mach_info *lpd270_lcd_to_use;
427 
428 static int __init lpd270_set_lcd(char *str)
429 {
430         if (!strncasecmp(str, "lq057q3dc02", 11)) {
431                 lpd270_lcd_to_use = &sharp_lq057q3dc02;
432         } else if (!strncasecmp(str, "lq121s1dg31", 11)) {
433                 lpd270_lcd_to_use = &sharp_lq121s1dg31;
434         } else if (!strncasecmp(str, "lq036q1da01", 11)) {
435                 lpd270_lcd_to_use = &sharp_lq036q1da01;
436         } else if (!strncasecmp(str, "lq64d343", 8)) {
437                 lpd270_lcd_to_use = &sharp_lq64d343;
438         } else if (!strncasecmp(str, "lq10d368", 8)) {
439                 lpd270_lcd_to_use = &sharp_lq10d368;
440         } else if (!strncasecmp(str, "lq035q7db02-20", 14)) {
441                 lpd270_lcd_to_use = &sharp_lq035q7db02_20;
442         } else {
443                 printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
444         }
445 
446         return 1;
447 }
448 
449 __setup("lcd=", lpd270_set_lcd);
450 
451 static struct platform_device *platform_devices[] __initdata = {
452         &smc91x_device,
453         &lpd270_backlight_device,
454         &lpd270_flash_device[0],
455         &lpd270_flash_device[1],
456 };
457 
458 static struct pxaohci_platform_data lpd270_ohci_platform_data = {
459         .port_mode      = PMM_PERPORT_MODE,
460         .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
461 };
462 
463 static void __init lpd270_init(void)
464 {
465         pxa2xx_mfp_config(ARRAY_AND_SIZE(lpd270_pin_config));
466 
467         pxa_set_ffuart_info(NULL);
468         pxa_set_btuart_info(NULL);
469         pxa_set_stuart_info(NULL);
470 
471         lpd270_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
472         lpd270_flash_data[1].width = 4;
473 
474         /*
475          * System bus arbiter setting:
476          * - Core_Park
477          * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
478          */
479         ARB_CNTRL = ARB_CORE_PARK | 0x234;
480 
481         pwm_add_table(lpd270_pwm_lookup, ARRAY_SIZE(lpd270_pwm_lookup));
482         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
483 
484         pxa_set_ac97_info(NULL);
485 
486         if (lpd270_lcd_to_use != NULL)
487                 pxa_set_fb_info(NULL, lpd270_lcd_to_use);
488 
489         pxa_set_ohci_info(&lpd270_ohci_platform_data);
490 }
491 
492 
493 static struct map_desc lpd270_io_desc[] __initdata = {
494         {
495                 .virtual        = (unsigned long)LPD270_CPLD_VIRT,
496                 .pfn            = __phys_to_pfn(LPD270_CPLD_PHYS),
497                 .length         = LPD270_CPLD_SIZE,
498                 .type           = MT_DEVICE,
499         },
500 };
501 
502 static void __init lpd270_map_io(void)
503 {
504         pxa27x_map_io();
505         iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
506 
507         /* for use I SRAM as framebuffer.  */
508         PSLR |= 0x00000F04;
509         PCFR  = 0x00000066;
510 }
511 
512 MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
513         /* Maintainer: Peter Barada */
514         .atag_offset    = 0x100,
515         .map_io         = lpd270_map_io,
516         .nr_irqs        = LPD270_NR_IRQS,
517         .init_irq       = lpd270_init_irq,
518         .handle_irq     = pxa27x_handle_irq,
519         .init_time      = pxa_timer_init,
520         .init_machine   = lpd270_init,
521         .restart        = pxa_restart,
522 MACHINE_END
523 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp