Merge branch 'gart/rename' of git://git.kernel.org/pub/scm/linux/kernel/git/joro...
[linux-2.6.git] / arch / arm / mach-pxa / cm-x2xx.c
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/sysdev.h>
14 #include <linux/irq.h>
15 #include <linux/gpio.h>
16
17 #include <linux/dm9000.h>
18 #include <linux/leds.h>
19
20 #include <asm/mach/arch.h>
21 #include <asm/mach-types.h>
22 #include <asm/mach/map.h>
23
24 #include <mach/pxa2xx-regs.h>
25 #include <mach/audio.h>
26 #include <mach/pxafb.h>
27 #include <mach/smemc.h>
28
29 #include <asm/hardware/it8152.h>
30
31 #include "generic.h"
32 #include "cm-x2xx-pci.h"
33
34 extern void cmx255_init(void);
35 extern void cmx270_init(void);
36
37 /* reserve IRQs for IT8152 */
38 #define CMX2XX_NR_IRQS          (IRQ_BOARD_START + 40)
39
40 /* virtual addresses for statically mapped regions */
41 #define CMX2XX_VIRT_BASE        (0xe8000000)
42 #define CMX2XX_IT8152_VIRT      (CMX2XX_VIRT_BASE)
43
44 /* physical address if local-bus attached devices */
45 #define CMX255_DM9000_PHYS_BASE (PXA_CS1_PHYS + (8 << 22))
46 #define CMX270_DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
47
48 /* leds */
49 #define CMX255_GPIO_RED         (27)
50 #define CMX255_GPIO_GREEN       (32)
51 #define CMX270_GPIO_RED         (93)
52 #define CMX270_GPIO_GREEN       (94)
53
54 /* GPIO IRQ usage */
55 #define GPIO22_ETHIRQ           (22)
56 #define GPIO10_ETHIRQ           (10)
57 #define CMX255_GPIO_IT8152_IRQ  (0)
58 #define CMX270_GPIO_IT8152_IRQ  (22)
59
60 #define CMX255_ETHIRQ           IRQ_GPIO(GPIO22_ETHIRQ)
61 #define CMX270_ETHIRQ           IRQ_GPIO(GPIO10_ETHIRQ)
62
63 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
64 static struct resource cmx255_dm9000_resource[] = {
65         [0] = {
66                 .start = CMX255_DM9000_PHYS_BASE,
67                 .end   = CMX255_DM9000_PHYS_BASE + 3,
68                 .flags = IORESOURCE_MEM,
69         },
70         [1] = {
71                 .start = CMX255_DM9000_PHYS_BASE + 4,
72                 .end   = CMX255_DM9000_PHYS_BASE + 4 + 500,
73                 .flags = IORESOURCE_MEM,
74         },
75         [2] = {
76                 .start = CMX255_ETHIRQ,
77                 .end   = CMX255_ETHIRQ,
78                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
79         }
80 };
81
82 static struct resource cmx270_dm9000_resource[] = {
83         [0] = {
84                 .start = CMX270_DM9000_PHYS_BASE,
85                 .end   = CMX270_DM9000_PHYS_BASE + 3,
86                 .flags = IORESOURCE_MEM,
87         },
88         [1] = {
89                 .start = CMX270_DM9000_PHYS_BASE + 8,
90                 .end   = CMX270_DM9000_PHYS_BASE + 8 + 500,
91                 .flags = IORESOURCE_MEM,
92         },
93         [2] = {
94                 .start = CMX270_ETHIRQ,
95                 .end   = CMX270_ETHIRQ,
96                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
97         }
98 };
99
100 static struct dm9000_plat_data cmx270_dm9000_platdata = {
101         .flags          = DM9000_PLATF_32BITONLY | DM9000_PLATF_NO_EEPROM,
102 };
103
104 static struct platform_device cmx2xx_dm9000_device = {
105         .name           = "dm9000",
106         .id             = 0,
107         .num_resources  = ARRAY_SIZE(cmx270_dm9000_resource),
108         .dev            = {
109                 .platform_data = &cmx270_dm9000_platdata,
110         }
111 };
112
113 static void __init cmx2xx_init_dm9000(void)
114 {
115         if (cpu_is_pxa25x())
116                 cmx2xx_dm9000_device.resource = cmx255_dm9000_resource;
117         else
118                 cmx2xx_dm9000_device.resource = cmx270_dm9000_resource;
119         platform_device_register(&cmx2xx_dm9000_device);
120 }
121 #else
122 static inline void cmx2xx_init_dm9000(void) {}
123 #endif
124
125 /* UCB1400 touchscreen controller */
126 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
127 static struct platform_device cmx2xx_ts_device = {
128         .name           = "ucb1400_core",
129         .id             = -1,
130 };
131
132 static void __init cmx2xx_init_touchscreen(void)
133 {
134         platform_device_register(&cmx2xx_ts_device);
135 }
136 #else
137 static inline void cmx2xx_init_touchscreen(void) {}
138 #endif
139
140 /* CM-X270 LEDs */
141 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
142 static struct gpio_led cmx2xx_leds[] = {
143         [0] = {
144                 .name = "cm-x2xx:red",
145                 .default_trigger = "nand-disk",
146                 .active_low = 1,
147         },
148         [1] = {
149                 .name = "cm-x2xx:green",
150                 .default_trigger = "heartbeat",
151                 .active_low = 1,
152         },
153 };
154
155 static struct gpio_led_platform_data cmx2xx_gpio_led_pdata = {
156         .num_leds = ARRAY_SIZE(cmx2xx_leds),
157         .leds = cmx2xx_leds,
158 };
159
160 static struct platform_device cmx2xx_led_device = {
161         .name           = "leds-gpio",
162         .id             = -1,
163         .dev            = {
164                 .platform_data = &cmx2xx_gpio_led_pdata,
165         },
166 };
167
168 static void __init cmx2xx_init_leds(void)
169 {
170         if (cpu_is_pxa25x()) {
171                 cmx2xx_leds[0].gpio = CMX255_GPIO_RED;
172                 cmx2xx_leds[1].gpio = CMX255_GPIO_GREEN;
173         } else {
174                 cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
175                 cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
176         }
177         platform_device_register(&cmx2xx_led_device);
178 }
179 #else
180 static inline void cmx2xx_init_leds(void) {}
181 #endif
182
183 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
184 /*
185   Display definitions
186   keep these for backwards compatibility, although symbolic names (as
187   e.g. in lpd270.c) looks better
188 */
189 #define MTYPE_STN320x240        0
190 #define MTYPE_TFT640x480        1
191 #define MTYPE_CRT640x480        2
192 #define MTYPE_CRT800x600        3
193 #define MTYPE_TFT320x240        6
194 #define MTYPE_STN640x480        7
195
196 static struct pxafb_mode_info generic_stn_320x240_mode = {
197         .pixclock       = 76923,
198         .bpp            = 8,
199         .xres           = 320,
200         .yres           = 240,
201         .hsync_len      = 3,
202         .vsync_len      = 2,
203         .left_margin    = 3,
204         .upper_margin   = 0,
205         .right_margin   = 3,
206         .lower_margin   = 0,
207         .sync           = (FB_SYNC_HOR_HIGH_ACT |
208                            FB_SYNC_VERT_HIGH_ACT),
209         .cmap_greyscale = 0,
210 };
211
212 static struct pxafb_mach_info generic_stn_320x240 = {
213         .modes          = &generic_stn_320x240_mode,
214         .num_modes      = 1,
215         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_PCLK_EDGE_FALL |\
216                           LCD_AC_BIAS_FREQ(0xff),
217         .cmap_inverse   = 0,
218         .cmap_static    = 0,
219 };
220
221 static struct pxafb_mode_info generic_tft_640x480_mode = {
222         .pixclock       = 38461,
223         .bpp            = 8,
224         .xres           = 640,
225         .yres           = 480,
226         .hsync_len      = 60,
227         .vsync_len      = 2,
228         .left_margin    = 70,
229         .upper_margin   = 10,
230         .right_margin   = 70,
231         .lower_margin   = 5,
232         .sync           = 0,
233         .cmap_greyscale = 0,
234 };
235
236 static struct pxafb_mach_info generic_tft_640x480 = {
237         .modes          = &generic_tft_640x480_mode,
238         .num_modes      = 1,
239         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_PCLK_EDGE_FALL |\
240                           LCD_AC_BIAS_FREQ(0xff),
241         .cmap_inverse   = 0,
242         .cmap_static    = 0,
243 };
244
245 static struct pxafb_mode_info generic_crt_640x480_mode = {
246         .pixclock       = 38461,
247         .bpp            = 8,
248         .xres           = 640,
249         .yres           = 480,
250         .hsync_len      = 63,
251         .vsync_len      = 2,
252         .left_margin    = 81,
253         .upper_margin   = 33,
254         .right_margin   = 16,
255         .lower_margin   = 10,
256         .sync           = (FB_SYNC_HOR_HIGH_ACT |
257                            FB_SYNC_VERT_HIGH_ACT),
258         .cmap_greyscale = 0,
259 };
260
261 static struct pxafb_mach_info generic_crt_640x480 = {
262         .modes          = &generic_crt_640x480_mode,
263         .num_modes      = 1,
264         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
265         .cmap_inverse   = 0,
266         .cmap_static    = 0,
267 };
268
269 static struct pxafb_mode_info generic_crt_800x600_mode = {
270         .pixclock       = 28846,
271         .bpp            = 8,
272         .xres           = 800,
273         .yres           = 600,
274         .hsync_len      = 63,
275         .vsync_len      = 2,
276         .left_margin    = 26,
277         .upper_margin   = 21,
278         .right_margin   = 26,
279         .lower_margin   = 11,
280         .sync           = (FB_SYNC_HOR_HIGH_ACT |
281                            FB_SYNC_VERT_HIGH_ACT),
282         .cmap_greyscale = 0,
283 };
284
285 static struct pxafb_mach_info generic_crt_800x600 = {
286         .modes          = &generic_crt_800x600_mode,
287         .num_modes      = 1,
288         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
289         .cmap_inverse   = 0,
290         .cmap_static    = 0,
291 };
292
293 static struct pxafb_mode_info generic_tft_320x240_mode = {
294         .pixclock       = 134615,
295         .bpp            = 16,
296         .xres           = 320,
297         .yres           = 240,
298         .hsync_len      = 63,
299         .vsync_len      = 7,
300         .left_margin    = 75,
301         .upper_margin   = 0,
302         .right_margin   = 15,
303         .lower_margin   = 15,
304         .sync           = 0,
305         .cmap_greyscale = 0,
306 };
307
308 static struct pxafb_mach_info generic_tft_320x240 = {
309         .modes          = &generic_tft_320x240_mode,
310         .num_modes      = 1,
311         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_AC_BIAS_FREQ(0xff),
312         .cmap_inverse   = 0,
313         .cmap_static    = 0,
314 };
315
316 static struct pxafb_mode_info generic_stn_640x480_mode = {
317         .pixclock       = 57692,
318         .bpp            = 8,
319         .xres           = 640,
320         .yres           = 480,
321         .hsync_len      = 4,
322         .vsync_len      = 2,
323         .left_margin    = 10,
324         .upper_margin   = 5,
325         .right_margin   = 10,
326         .lower_margin   = 5,
327         .sync           = (FB_SYNC_HOR_HIGH_ACT |
328                            FB_SYNC_VERT_HIGH_ACT),
329         .cmap_greyscale = 0,
330 };
331
332 static struct pxafb_mach_info generic_stn_640x480 = {
333         .modes          = &generic_stn_640x480_mode,
334         .num_modes      = 1,
335         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_AC_BIAS_FREQ(0xff),
336         .cmap_inverse   = 0,
337         .cmap_static    = 0,
338 };
339
340 static struct pxafb_mach_info *cmx2xx_display = &generic_crt_640x480;
341
342 static int __init cmx2xx_set_display(char *str)
343 {
344         int disp_type = simple_strtol(str, NULL, 0);
345         switch (disp_type) {
346         case MTYPE_STN320x240:
347                 cmx2xx_display = &generic_stn_320x240;
348                 break;
349         case MTYPE_TFT640x480:
350                 cmx2xx_display = &generic_tft_640x480;
351                 break;
352         case MTYPE_CRT640x480:
353                 cmx2xx_display = &generic_crt_640x480;
354                 break;
355         case MTYPE_CRT800x600:
356                 cmx2xx_display = &generic_crt_800x600;
357                 break;
358         case MTYPE_TFT320x240:
359                 cmx2xx_display = &generic_tft_320x240;
360                 break;
361         case MTYPE_STN640x480:
362                 cmx2xx_display = &generic_stn_640x480;
363                 break;
364         default: /* fallback to CRT 640x480 */
365                 cmx2xx_display = &generic_crt_640x480;
366                 break;
367         }
368         return 1;
369 }
370
371 /*
372    This should be done really early to get proper configuration for
373    frame buffer.
374    Indeed, pxafb parameters can be used istead, but CM-X2XX bootloader
375    has limitied line length for kernel command line, and also it will
376    break compatibitlty with proprietary releases already in field.
377 */
378 __setup("monitor=", cmx2xx_set_display);
379
380 static void __init cmx2xx_init_display(void)
381 {
382         pxa_set_fb_info(NULL, cmx2xx_display);
383 }
384 #else
385 static inline void cmx2xx_init_display(void) {}
386 #endif
387
388 #ifdef CONFIG_PM
389 static unsigned long sleep_save_msc[10];
390
391 static int cmx2xx_suspend(struct sys_device *dev, pm_message_t state)
392 {
393         cmx2xx_pci_suspend();
394
395         /* save MSC registers */
396         sleep_save_msc[0] = __raw_readl(MSC0);
397         sleep_save_msc[1] = __raw_readl(MSC1);
398         sleep_save_msc[2] = __raw_readl(MSC2);
399
400         /* setup power saving mode registers */
401         PCFR = 0x0;
402         PSLR = 0xff400000;
403         PMCR  = 0x00000005;
404         PWER  = 0x80000000;
405         PFER  = 0x00000000;
406         PRER  = 0x00000000;
407         PGSR0 = 0xC0018800;
408         PGSR1 = 0x004F0002;
409         PGSR2 = 0x6021C000;
410         PGSR3 = 0x00020000;
411
412         return 0;
413 }
414
415 static int cmx2xx_resume(struct sys_device *dev)
416 {
417         cmx2xx_pci_resume();
418
419         /* restore MSC registers */
420         __raw_writel(sleep_save_msc[0], MSC0);
421         __raw_writel(sleep_save_msc[1], MSC1);
422         __raw_writel(sleep_save_msc[2], MSC2);
423
424         return 0;
425 }
426
427 static struct sysdev_class cmx2xx_pm_sysclass = {
428         .name = "pm",
429         .resume = cmx2xx_resume,
430         .suspend = cmx2xx_suspend,
431 };
432
433 static struct sys_device cmx2xx_pm_device = {
434         .cls = &cmx2xx_pm_sysclass,
435 };
436
437 static int __init cmx2xx_pm_init(void)
438 {
439         int error;
440         error = sysdev_class_register(&cmx2xx_pm_sysclass);
441         if (error == 0)
442                 error = sysdev_register(&cmx2xx_pm_device);
443         return error;
444 }
445 #else
446 static int __init cmx2xx_pm_init(void) { return 0; }
447 #endif
448
449 #if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
450 static void __init cmx2xx_init_ac97(void)
451 {
452         pxa_set_ac97_info(NULL);
453 }
454 #else
455 static inline void cmx2xx_init_ac97(void) {}
456 #endif
457
458 static void __init cmx2xx_init(void)
459 {
460         pxa_set_ffuart_info(NULL);
461         pxa_set_btuart_info(NULL);
462         pxa_set_stuart_info(NULL);
463
464         cmx2xx_pm_init();
465
466         if (cpu_is_pxa25x())
467                 cmx255_init();
468         else
469                 cmx270_init();
470
471         cmx2xx_init_dm9000();
472         cmx2xx_init_display();
473         cmx2xx_init_ac97();
474         cmx2xx_init_touchscreen();
475         cmx2xx_init_leds();
476 }
477
478 static void __init cmx2xx_init_irq(void)
479 {
480         if (cpu_is_pxa25x()) {
481                 pxa25x_init_irq();
482                 cmx2xx_pci_init_irq(CMX255_GPIO_IT8152_IRQ);
483         } else {
484                 pxa27x_init_irq();
485                 cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
486         }
487 }
488
489 #ifdef CONFIG_PCI
490 /* Map PCI companion statically */
491 static struct map_desc cmx2xx_io_desc[] __initdata = {
492         [0] = { /* PCI bridge */
493                 .virtual        = CMX2XX_IT8152_VIRT,
494                 .pfn            = __phys_to_pfn(PXA_CS4_PHYS),
495                 .length         = SZ_64M,
496                 .type           = MT_DEVICE
497         },
498 };
499
500 static void __init cmx2xx_map_io(void)
501 {
502         if (cpu_is_pxa25x())
503                 pxa25x_map_io();
504
505         if (cpu_is_pxa27x())
506                 pxa27x_map_io();
507
508         iotable_init(cmx2xx_io_desc, ARRAY_SIZE(cmx2xx_io_desc));
509
510         it8152_base_address = CMX2XX_IT8152_VIRT;
511 }
512 #else
513 static void __init cmx2xx_map_io(void)
514 {
515         if (cpu_is_pxa25x())
516                 pxa25x_map_io();
517
518         if (cpu_is_pxa27x())
519                 pxa27x_map_io();
520 }
521 #endif
522
523 MACHINE_START(ARMCORE, "Compulab CM-X2XX")
524         .boot_params    = 0xa0000100,
525         .map_io         = cmx2xx_map_io,
526         .nr_irqs        = CMX2XX_NR_IRQS,
527         .init_irq       = cmx2xx_init_irq,
528         .timer          = &pxa_timer,
529         .init_machine   = cmx2xx_init,
530 MACHINE_END