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

TOMOYO Linux Cross Reference
Linux/arch/arm/mach-pxa/cm-x2xx.c

Version: ~ [ linux-5.10-rc1 ] ~ [ linux-5.9.1 ] ~ [ linux-5.8.16 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.72 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.152 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.202 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.240 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.240 ] ~ [ 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/cm-x2xx.c
  3  *
  4  * Copyright (C) 2008 CompuLab, Ltd.
  5  * Mike Rapoport <mike@compulab.co.il>
  6  *
  7  * This program is free software; you can redistribute it and/or modify
  8  * it under the terms of the GNU General Public License version 2 as
  9  * published by the Free Software Foundation.
 10  */
 11 
 12 #include <linux/platform_device.h>
 13 #include <linux/syscore_ops.h>
 14 #include <linux/irq.h>
 15 #include <linux/gpio.h>
 16 #include <linux/regulator/machine.h>
 17 
 18 #include <linux/dm9000.h>
 19 #include <linux/leds.h>
 20 
 21 #include <asm/mach/arch.h>
 22 #include <asm/mach-types.h>
 23 #include <asm/mach/map.h>
 24 
 25 #include "pxa25x.h"
 26 #undef GPIO24_SSP1_SFRM
 27 #undef GPIO86_GPIO
 28 #undef GPIO87_GPIO
 29 #undef GPIO88_GPIO
 30 #undef GPIO89_GPIO
 31 #include "pxa27x.h"
 32 #undef GPIO24_SSP1_SFRM
 33 #undef GPIO86_GPIO
 34 #undef GPIO87_GPIO
 35 #undef GPIO88_GPIO
 36 #undef GPIO89_GPIO
 37 #include <mach/audio.h>
 38 #include <linux/platform_data/video-pxafb.h>
 39 #include <mach/smemc.h>
 40 
 41 #include <asm/hardware/it8152.h>
 42 
 43 #include "generic.h"
 44 #include "cm-x2xx-pci.h"
 45 
 46 extern void cmx255_init(void);
 47 extern void cmx270_init(void);
 48 
 49 /* reserve IRQs for IT8152 */
 50 #define CMX2XX_NR_IRQS          (IRQ_BOARD_START + 40)
 51 
 52 /* virtual addresses for statically mapped regions */
 53 #define CMX2XX_VIRT_BASE        (void __iomem *)(0xe8000000)
 54 #define CMX2XX_IT8152_VIRT      (CMX2XX_VIRT_BASE)
 55 
 56 /* physical address if local-bus attached devices */
 57 #define CMX255_DM9000_PHYS_BASE (PXA_CS1_PHYS + (8 << 22))
 58 #define CMX270_DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
 59 
 60 /* leds */
 61 #define CMX255_GPIO_RED         (27)
 62 #define CMX255_GPIO_GREEN       (32)
 63 #define CMX270_GPIO_RED         (93)
 64 #define CMX270_GPIO_GREEN       (94)
 65 
 66 /* GPIO IRQ usage */
 67 #define GPIO22_ETHIRQ           (22)
 68 #define GPIO10_ETHIRQ           (10)
 69 #define CMX255_GPIO_IT8152_IRQ  (0)
 70 #define CMX270_GPIO_IT8152_IRQ  (22)
 71 
 72 #define CMX255_ETHIRQ           PXA_GPIO_TO_IRQ(GPIO22_ETHIRQ)
 73 #define CMX270_ETHIRQ           PXA_GPIO_TO_IRQ(GPIO10_ETHIRQ)
 74 
 75 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 76 static struct resource cmx255_dm9000_resource[] = {
 77         [0] = {
 78                 .start = CMX255_DM9000_PHYS_BASE,
 79                 .end   = CMX255_DM9000_PHYS_BASE + 3,
 80                 .flags = IORESOURCE_MEM,
 81         },
 82         [1] = {
 83                 .start = CMX255_DM9000_PHYS_BASE + 4,
 84                 .end   = CMX255_DM9000_PHYS_BASE + 4 + 500,
 85                 .flags = IORESOURCE_MEM,
 86         },
 87         [2] = {
 88                 .start = CMX255_ETHIRQ,
 89                 .end   = CMX255_ETHIRQ,
 90                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 91         }
 92 };
 93 
 94 static struct resource cmx270_dm9000_resource[] = {
 95         [0] = {
 96                 .start = CMX270_DM9000_PHYS_BASE,
 97                 .end   = CMX270_DM9000_PHYS_BASE + 3,
 98                 .flags = IORESOURCE_MEM,
 99         },
100         [1] = {
101                 .start = CMX270_DM9000_PHYS_BASE + 8,
102                 .end   = CMX270_DM9000_PHYS_BASE + 8 + 500,
103                 .flags = IORESOURCE_MEM,
104         },
105         [2] = {
106                 .start = CMX270_ETHIRQ,
107                 .end   = CMX270_ETHIRQ,
108                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
109         }
110 };
111 
112 static struct dm9000_plat_data cmx270_dm9000_platdata = {
113         .flags          = DM9000_PLATF_32BITONLY | DM9000_PLATF_NO_EEPROM,
114 };
115 
116 static struct platform_device cmx2xx_dm9000_device = {
117         .name           = "dm9000",
118         .id             = 0,
119         .num_resources  = ARRAY_SIZE(cmx270_dm9000_resource),
120         .dev            = {
121                 .platform_data = &cmx270_dm9000_platdata,
122         }
123 };
124 
125 static void __init cmx2xx_init_dm9000(void)
126 {
127         if (cpu_is_pxa25x())
128                 cmx2xx_dm9000_device.resource = cmx255_dm9000_resource;
129         else
130                 cmx2xx_dm9000_device.resource = cmx270_dm9000_resource;
131         platform_device_register(&cmx2xx_dm9000_device);
132 }
133 #else
134 static inline void cmx2xx_init_dm9000(void) {}
135 #endif
136 
137 /* UCB1400 touchscreen controller */
138 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
139 static struct platform_device cmx2xx_ts_device = {
140         .name           = "ucb1400_core",
141         .id             = -1,
142 };
143 
144 static void __init cmx2xx_init_touchscreen(void)
145 {
146         platform_device_register(&cmx2xx_ts_device);
147 }
148 #else
149 static inline void cmx2xx_init_touchscreen(void) {}
150 #endif
151 
152 /* CM-X270 LEDs */
153 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
154 static struct gpio_led cmx2xx_leds[] = {
155         [0] = {
156                 .name = "cm-x2xx:red",
157                 .default_trigger = "nand-disk",
158                 .active_low = 1,
159         },
160         [1] = {
161                 .name = "cm-x2xx:green",
162                 .default_trigger = "heartbeat",
163                 .active_low = 1,
164         },
165 };
166 
167 static struct gpio_led_platform_data cmx2xx_gpio_led_pdata = {
168         .num_leds = ARRAY_SIZE(cmx2xx_leds),
169         .leds = cmx2xx_leds,
170 };
171 
172 static struct platform_device cmx2xx_led_device = {
173         .name           = "leds-gpio",
174         .id             = -1,
175         .dev            = {
176                 .platform_data = &cmx2xx_gpio_led_pdata,
177         },
178 };
179 
180 static void __init cmx2xx_init_leds(void)
181 {
182         if (cpu_is_pxa25x()) {
183                 cmx2xx_leds[0].gpio = CMX255_GPIO_RED;
184                 cmx2xx_leds[1].gpio = CMX255_GPIO_GREEN;
185         } else {
186                 cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
187                 cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
188         }
189         platform_device_register(&cmx2xx_led_device);
190 }
191 #else
192 static inline void cmx2xx_init_leds(void) {}
193 #endif
194 
195 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
196 /*
197   Display definitions
198   keep these for backwards compatibility, although symbolic names (as
199   e.g. in lpd270.c) looks better
200 */
201 #define MTYPE_STN320x240        0
202 #define MTYPE_TFT640x480        1
203 #define MTYPE_CRT640x480        2
204 #define MTYPE_CRT800x600        3
205 #define MTYPE_TFT320x240        6
206 #define MTYPE_STN640x480        7
207 
208 static struct pxafb_mode_info generic_stn_320x240_mode = {
209         .pixclock       = 76923,
210         .bpp            = 8,
211         .xres           = 320,
212         .yres           = 240,
213         .hsync_len      = 3,
214         .vsync_len      = 2,
215         .left_margin    = 3,
216         .upper_margin   = 0,
217         .right_margin   = 3,
218         .lower_margin   = 0,
219         .sync           = (FB_SYNC_HOR_HIGH_ACT |
220                            FB_SYNC_VERT_HIGH_ACT),
221         .cmap_greyscale = 0,
222 };
223 
224 static struct pxafb_mach_info generic_stn_320x240 = {
225         .modes          = &generic_stn_320x240_mode,
226         .num_modes      = 1,
227         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_PCLK_EDGE_FALL |\
228                           LCD_AC_BIAS_FREQ(0xff),
229         .cmap_inverse   = 0,
230         .cmap_static    = 0,
231 };
232 
233 static struct pxafb_mode_info generic_tft_640x480_mode = {
234         .pixclock       = 38461,
235         .bpp            = 8,
236         .xres           = 640,
237         .yres           = 480,
238         .hsync_len      = 60,
239         .vsync_len      = 2,
240         .left_margin    = 70,
241         .upper_margin   = 10,
242         .right_margin   = 70,
243         .lower_margin   = 5,
244         .sync           = 0,
245         .cmap_greyscale = 0,
246 };
247 
248 static struct pxafb_mach_info generic_tft_640x480 = {
249         .modes          = &generic_tft_640x480_mode,
250         .num_modes      = 1,
251         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_PCLK_EDGE_FALL |\
252                           LCD_AC_BIAS_FREQ(0xff),
253         .cmap_inverse   = 0,
254         .cmap_static    = 0,
255 };
256 
257 static struct pxafb_mode_info generic_crt_640x480_mode = {
258         .pixclock       = 38461,
259         .bpp            = 8,
260         .xres           = 640,
261         .yres           = 480,
262         .hsync_len      = 63,
263         .vsync_len      = 2,
264         .left_margin    = 81,
265         .upper_margin   = 33,
266         .right_margin   = 16,
267         .lower_margin   = 10,
268         .sync           = (FB_SYNC_HOR_HIGH_ACT |
269                            FB_SYNC_VERT_HIGH_ACT),
270         .cmap_greyscale = 0,
271 };
272 
273 static struct pxafb_mach_info generic_crt_640x480 = {
274         .modes          = &generic_crt_640x480_mode,
275         .num_modes      = 1,
276         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
277         .cmap_inverse   = 0,
278         .cmap_static    = 0,
279 };
280 
281 static struct pxafb_mode_info generic_crt_800x600_mode = {
282         .pixclock       = 28846,
283         .bpp            = 8,
284         .xres           = 800,
285         .yres           = 600,
286         .hsync_len      = 63,
287         .vsync_len      = 2,
288         .left_margin    = 26,
289         .upper_margin   = 21,
290         .right_margin   = 26,
291         .lower_margin   = 11,
292         .sync           = (FB_SYNC_HOR_HIGH_ACT |
293                            FB_SYNC_VERT_HIGH_ACT),
294         .cmap_greyscale = 0,
295 };
296 
297 static struct pxafb_mach_info generic_crt_800x600 = {
298         .modes          = &generic_crt_800x600_mode,
299         .num_modes      = 1,
300         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
301         .cmap_inverse   = 0,
302         .cmap_static    = 0,
303 };
304 
305 static struct pxafb_mode_info generic_tft_320x240_mode = {
306         .pixclock       = 134615,
307         .bpp            = 16,
308         .xres           = 320,
309         .yres           = 240,
310         .hsync_len      = 63,
311         .vsync_len      = 7,
312         .left_margin    = 75,
313         .upper_margin   = 0,
314         .right_margin   = 15,
315         .lower_margin   = 15,
316         .sync           = 0,
317         .cmap_greyscale = 0,
318 };
319 
320 static struct pxafb_mach_info generic_tft_320x240 = {
321         .modes          = &generic_tft_320x240_mode,
322         .num_modes      = 1,
323         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_AC_BIAS_FREQ(0xff),
324         .cmap_inverse   = 0,
325         .cmap_static    = 0,
326 };
327 
328 static struct pxafb_mode_info generic_stn_640x480_mode = {
329         .pixclock       = 57692,
330         .bpp            = 8,
331         .xres           = 640,
332         .yres           = 480,
333         .hsync_len      = 4,
334         .vsync_len      = 2,
335         .left_margin    = 10,
336         .upper_margin   = 5,
337         .right_margin   = 10,
338         .lower_margin   = 5,
339         .sync           = (FB_SYNC_HOR_HIGH_ACT |
340                            FB_SYNC_VERT_HIGH_ACT),
341         .cmap_greyscale = 0,
342 };
343 
344 static struct pxafb_mach_info generic_stn_640x480 = {
345         .modes          = &generic_stn_640x480_mode,
346         .num_modes      = 1,
347         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_AC_BIAS_FREQ(0xff),
348         .cmap_inverse   = 0,
349         .cmap_static    = 0,
350 };
351 
352 static struct pxafb_mach_info *cmx2xx_display = &generic_crt_640x480;
353 
354 static int __init cmx2xx_set_display(char *str)
355 {
356         int disp_type = simple_strtol(str, NULL, 0);
357         switch (disp_type) {
358         case MTYPE_STN320x240:
359                 cmx2xx_display = &generic_stn_320x240;
360                 break;
361         case MTYPE_TFT640x480:
362                 cmx2xx_display = &generic_tft_640x480;
363                 break;
364         case MTYPE_CRT640x480:
365                 cmx2xx_display = &generic_crt_640x480;
366                 break;
367         case MTYPE_CRT800x600:
368                 cmx2xx_display = &generic_crt_800x600;
369                 break;
370         case MTYPE_TFT320x240:
371                 cmx2xx_display = &generic_tft_320x240;
372                 break;
373         case MTYPE_STN640x480:
374                 cmx2xx_display = &generic_stn_640x480;
375                 break;
376         default: /* fallback to CRT 640x480 */
377                 cmx2xx_display = &generic_crt_640x480;
378                 break;
379         }
380         return 1;
381 }
382 
383 /*
384    This should be done really early to get proper configuration for
385    frame buffer.
386    Indeed, pxafb parameters can be used istead, but CM-X2XX bootloader
387    has limitied line length for kernel command line, and also it will
388    break compatibitlty with proprietary releases already in field.
389 */
390 __setup("monitor=", cmx2xx_set_display);
391 
392 static void __init cmx2xx_init_display(void)
393 {
394         pxa_set_fb_info(NULL, cmx2xx_display);
395 }
396 #else
397 static inline void cmx2xx_init_display(void) {}
398 #endif
399 
400 #ifdef CONFIG_PM
401 static unsigned long sleep_save_msc[10];
402 
403 static int cmx2xx_suspend(void)
404 {
405         cmx2xx_pci_suspend();
406 
407         /* save MSC registers */
408         sleep_save_msc[0] = __raw_readl(MSC0);
409         sleep_save_msc[1] = __raw_readl(MSC1);
410         sleep_save_msc[2] = __raw_readl(MSC2);
411 
412         /* setup power saving mode registers */
413         PCFR = 0x0;
414         PSLR = 0xff400000;
415         PMCR  = 0x00000005;
416         PWER  = 0x80000000;
417         PFER  = 0x00000000;
418         PRER  = 0x00000000;
419         PGSR0 = 0xC0018800;
420         PGSR1 = 0x004F0002;
421         PGSR2 = 0x6021C000;
422         PGSR3 = 0x00020000;
423 
424         return 0;
425 }
426 
427 static void cmx2xx_resume(void)
428 {
429         cmx2xx_pci_resume();
430 
431         /* restore MSC registers */
432         __raw_writel(sleep_save_msc[0], MSC0);
433         __raw_writel(sleep_save_msc[1], MSC1);
434         __raw_writel(sleep_save_msc[2], MSC2);
435 }
436 
437 static struct syscore_ops cmx2xx_pm_syscore_ops = {
438         .resume = cmx2xx_resume,
439         .suspend = cmx2xx_suspend,
440 };
441 
442 static int __init cmx2xx_pm_init(void)
443 {
444         register_syscore_ops(&cmx2xx_pm_syscore_ops);
445 
446         return 0;
447 }
448 #else
449 static int __init cmx2xx_pm_init(void) { return 0; }
450 #endif
451 
452 #if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
453 static void __init cmx2xx_init_ac97(void)
454 {
455         pxa_set_ac97_info(NULL);
456 }
457 #else
458 static inline void cmx2xx_init_ac97(void) {}
459 #endif
460 
461 static void __init cmx2xx_init(void)
462 {
463         pxa_set_ffuart_info(NULL);
464         pxa_set_btuart_info(NULL);
465         pxa_set_stuart_info(NULL);
466 
467         cmx2xx_pm_init();
468 
469         if (cpu_is_pxa25x())
470                 cmx255_init();
471         else
472                 cmx270_init();
473 
474         cmx2xx_init_dm9000();
475         cmx2xx_init_display();
476         cmx2xx_init_ac97();
477         cmx2xx_init_touchscreen();
478         cmx2xx_init_leds();
479 
480         regulator_has_full_constraints();
481 }
482 
483 static void __init cmx2xx_init_irq(void)
484 {
485         if (cpu_is_pxa25x()) {
486                 pxa25x_init_irq();
487                 cmx2xx_pci_init_irq(CMX255_GPIO_IT8152_IRQ);
488         } else {
489                 pxa27x_init_irq();
490                 cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
491         }
492 }
493 
494 #ifdef CONFIG_PCI
495 /* Map PCI companion statically */
496 static struct map_desc cmx2xx_io_desc[] __initdata = {
497         [0] = { /* PCI bridge */
498                 .virtual        = (unsigned long)CMX2XX_IT8152_VIRT,
499                 .pfn            = __phys_to_pfn(PXA_CS4_PHYS),
500                 .length         = SZ_64M,
501                 .type           = MT_DEVICE
502         },
503 };
504 
505 static void __init cmx2xx_map_io(void)
506 {
507         if (cpu_is_pxa25x())
508                 pxa25x_map_io();
509 
510         if (cpu_is_pxa27x())
511                 pxa27x_map_io();
512 
513         iotable_init(cmx2xx_io_desc, ARRAY_SIZE(cmx2xx_io_desc));
514 
515         it8152_base_address = CMX2XX_IT8152_VIRT;
516 }
517 #else
518 static void __init cmx2xx_map_io(void)
519 {
520         if (cpu_is_pxa25x())
521                 pxa25x_map_io();
522 
523         if (cpu_is_pxa27x())
524                 pxa27x_map_io();
525 }
526 #endif
527 
528 MACHINE_START(ARMCORE, "Compulab CM-X2XX")
529         .atag_offset    = 0x100,
530         .map_io         = cmx2xx_map_io,
531         .nr_irqs        = CMX2XX_NR_IRQS,
532         .init_irq       = cmx2xx_init_irq,
533         /* NOTE: pxa25x_handle_irq() works on PXA27x w/o camera support */
534         .handle_irq     = pxa25x_handle_irq,
535         .init_time      = pxa_timer_init,
536         .init_machine   = cmx2xx_init,
537 #ifdef CONFIG_PCI
538         .dma_zone_size  = SZ_64M,
539 #endif
540         .restart        = pxa_restart,
541 MACHINE_END
542 

~ [ 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