Merge branch 'fix/misc' into for-linus
[linux-2.6] / 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
28 #include <asm/hardware/it8152.h>
29
30 #include "generic.h"
31 #include "cm-x2xx-pci.h"
32
33 extern void cmx255_init(void);
34 extern void cmx270_init(void);
35
36 /* virtual addresses for statically mapped regions */
37 #define CMX2XX_VIRT_BASE        (0xe8000000)
38 #define CMX2XX_IT8152_VIRT      (CMX2XX_VIRT_BASE)
39
40 /* physical address if local-bus attached devices */
41 #define CMX255_DM9000_PHYS_BASE (PXA_CS1_PHYS + (8 << 22))
42 #define CMX270_DM9000_PHYS_BASE (PXA_CS1_PHYS + (6 << 22))
43
44 /* leds */
45 #define CMX255_GPIO_RED         (27)
46 #define CMX255_GPIO_GREEN       (32)
47 #define CMX270_GPIO_RED         (93)
48 #define CMX270_GPIO_GREEN       (94)
49
50 /* GPIO IRQ usage */
51 #define GPIO22_ETHIRQ           (22)
52 #define GPIO10_ETHIRQ           (10)
53 #define CMX255_GPIO_IT8152_IRQ  (0)
54 #define CMX270_GPIO_IT8152_IRQ  (22)
55
56 #define CMX255_ETHIRQ           IRQ_GPIO(GPIO22_ETHIRQ)
57 #define CMX270_ETHIRQ           IRQ_GPIO(GPIO10_ETHIRQ)
58
59 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
60 static struct resource cmx255_dm9000_resource[] = {
61         [0] = {
62                 .start = CMX255_DM9000_PHYS_BASE,
63                 .end   = CMX255_DM9000_PHYS_BASE + 3,
64                 .flags = IORESOURCE_MEM,
65         },
66         [1] = {
67                 .start = CMX255_DM9000_PHYS_BASE + 4,
68                 .end   = CMX255_DM9000_PHYS_BASE + 4 + 500,
69                 .flags = IORESOURCE_MEM,
70         },
71         [2] = {
72                 .start = CMX255_ETHIRQ,
73                 .end   = CMX255_ETHIRQ,
74                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
75         }
76 };
77
78 static struct resource cmx270_dm9000_resource[] = {
79         [0] = {
80                 .start = CMX270_DM9000_PHYS_BASE,
81                 .end   = CMX270_DM9000_PHYS_BASE + 3,
82                 .flags = IORESOURCE_MEM,
83         },
84         [1] = {
85                 .start = CMX270_DM9000_PHYS_BASE + 8,
86                 .end   = CMX270_DM9000_PHYS_BASE + 8 + 500,
87                 .flags = IORESOURCE_MEM,
88         },
89         [2] = {
90                 .start = CMX270_ETHIRQ,
91                 .end   = CMX270_ETHIRQ,
92                 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
93         }
94 };
95
96 static struct dm9000_plat_data cmx270_dm9000_platdata = {
97         .flags          = DM9000_PLATF_32BITONLY | DM9000_PLATF_NO_EEPROM,
98 };
99
100 static struct platform_device cmx2xx_dm9000_device = {
101         .name           = "dm9000",
102         .id             = 0,
103         .num_resources  = ARRAY_SIZE(cmx270_dm9000_resource),
104         .dev            = {
105                 .platform_data = &cmx270_dm9000_platdata,
106         }
107 };
108
109 static void __init cmx2xx_init_dm9000(void)
110 {
111         if (cpu_is_pxa25x())
112                 cmx2xx_dm9000_device.resource = cmx255_dm9000_resource;
113         else
114                 cmx2xx_dm9000_device.resource = cmx270_dm9000_resource;
115         platform_device_register(&cmx2xx_dm9000_device);
116 }
117 #else
118 static inline void cmx2xx_init_dm9000(void) {}
119 #endif
120
121 /* UCB1400 touchscreen controller */
122 #if defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
123 static struct platform_device cmx2xx_ts_device = {
124         .name           = "ucb1400_core",
125         .id             = -1,
126 };
127
128 static void __init cmx2xx_init_touchscreen(void)
129 {
130         platform_device_register(&cmx2xx_ts_device);
131 }
132 #else
133 static inline void cmx2xx_init_touchscreen(void) {}
134 #endif
135
136 /* CM-X270 LEDs */
137 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
138 static struct gpio_led cmx2xx_leds[] = {
139         [0] = {
140                 .name = "cm-x2xx:red",
141                 .default_trigger = "nand-disk",
142                 .active_low = 1,
143         },
144         [1] = {
145                 .name = "cm-x2xx:green",
146                 .default_trigger = "heartbeat",
147                 .active_low = 1,
148         },
149 };
150
151 static struct gpio_led_platform_data cmx2xx_gpio_led_pdata = {
152         .num_leds = ARRAY_SIZE(cmx2xx_leds),
153         .leds = cmx2xx_leds,
154 };
155
156 static struct platform_device cmx2xx_led_device = {
157         .name           = "leds-gpio",
158         .id             = -1,
159         .dev            = {
160                 .platform_data = &cmx2xx_gpio_led_pdata,
161         },
162 };
163
164 static void __init cmx2xx_init_leds(void)
165 {
166         if (cpu_is_pxa25x()) {
167                 cmx2xx_leds[0].gpio = CMX255_GPIO_RED;
168                 cmx2xx_leds[1].gpio = CMX255_GPIO_GREEN;
169         } else {
170                 cmx2xx_leds[0].gpio = CMX270_GPIO_RED;
171                 cmx2xx_leds[1].gpio = CMX270_GPIO_GREEN;
172         }
173         platform_device_register(&cmx2xx_led_device);
174 }
175 #else
176 static inline void cmx2xx_init_leds(void) {}
177 #endif
178
179 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
180 /*
181   Display definitions
182   keep these for backwards compatibility, although symbolic names (as
183   e.g. in lpd270.c) looks better
184 */
185 #define MTYPE_STN320x240        0
186 #define MTYPE_TFT640x480        1
187 #define MTYPE_CRT640x480        2
188 #define MTYPE_CRT800x600        3
189 #define MTYPE_TFT320x240        6
190 #define MTYPE_STN640x480        7
191
192 static struct pxafb_mode_info generic_stn_320x240_mode = {
193         .pixclock       = 76923,
194         .bpp            = 8,
195         .xres           = 320,
196         .yres           = 240,
197         .hsync_len      = 3,
198         .vsync_len      = 2,
199         .left_margin    = 3,
200         .upper_margin   = 0,
201         .right_margin   = 3,
202         .lower_margin   = 0,
203         .sync           = (FB_SYNC_HOR_HIGH_ACT |
204                            FB_SYNC_VERT_HIGH_ACT),
205         .cmap_greyscale = 0,
206 };
207
208 static struct pxafb_mach_info generic_stn_320x240 = {
209         .modes          = &generic_stn_320x240_mode,
210         .num_modes      = 1,
211         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_PCLK_EDGE_FALL |\
212                           LCD_AC_BIAS_FREQ(0xff),
213         .cmap_inverse   = 0,
214         .cmap_static    = 0,
215 };
216
217 static struct pxafb_mode_info generic_tft_640x480_mode = {
218         .pixclock       = 38461,
219         .bpp            = 8,
220         .xres           = 640,
221         .yres           = 480,
222         .hsync_len      = 60,
223         .vsync_len      = 2,
224         .left_margin    = 70,
225         .upper_margin   = 10,
226         .right_margin   = 70,
227         .lower_margin   = 5,
228         .sync           = 0,
229         .cmap_greyscale = 0,
230 };
231
232 static struct pxafb_mach_info generic_tft_640x480 = {
233         .modes          = &generic_tft_640x480_mode,
234         .num_modes      = 1,
235         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_PCLK_EDGE_FALL |\
236                           LCD_AC_BIAS_FREQ(0xff),
237         .cmap_inverse   = 0,
238         .cmap_static    = 0,
239 };
240
241 static struct pxafb_mode_info generic_crt_640x480_mode = {
242         .pixclock       = 38461,
243         .bpp            = 8,
244         .xres           = 640,
245         .yres           = 480,
246         .hsync_len      = 63,
247         .vsync_len      = 2,
248         .left_margin    = 81,
249         .upper_margin   = 33,
250         .right_margin   = 16,
251         .lower_margin   = 10,
252         .sync           = (FB_SYNC_HOR_HIGH_ACT |
253                            FB_SYNC_VERT_HIGH_ACT),
254         .cmap_greyscale = 0,
255 };
256
257 static struct pxafb_mach_info generic_crt_640x480 = {
258         .modes          = &generic_crt_640x480_mode,
259         .num_modes      = 1,
260         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
261         .cmap_inverse   = 0,
262         .cmap_static    = 0,
263 };
264
265 static struct pxafb_mode_info generic_crt_800x600_mode = {
266         .pixclock       = 28846,
267         .bpp            = 8,
268         .xres           = 800,
269         .yres           = 600,
270         .hsync_len      = 63,
271         .vsync_len      = 2,
272         .left_margin    = 26,
273         .upper_margin   = 21,
274         .right_margin   = 26,
275         .lower_margin   = 11,
276         .sync           = (FB_SYNC_HOR_HIGH_ACT |
277                            FB_SYNC_VERT_HIGH_ACT),
278         .cmap_greyscale = 0,
279 };
280
281 static struct pxafb_mach_info generic_crt_800x600 = {
282         .modes          = &generic_crt_800x600_mode,
283         .num_modes      = 1,
284         .lcd_conn       = LCD_COLOR_TFT_8BPP | LCD_AC_BIAS_FREQ(0xff),
285         .cmap_inverse   = 0,
286         .cmap_static    = 0,
287 };
288
289 static struct pxafb_mode_info generic_tft_320x240_mode = {
290         .pixclock       = 134615,
291         .bpp            = 16,
292         .xres           = 320,
293         .yres           = 240,
294         .hsync_len      = 63,
295         .vsync_len      = 7,
296         .left_margin    = 75,
297         .upper_margin   = 0,
298         .right_margin   = 15,
299         .lower_margin   = 15,
300         .sync           = 0,
301         .cmap_greyscale = 0,
302 };
303
304 static struct pxafb_mach_info generic_tft_320x240 = {
305         .modes          = &generic_tft_320x240_mode,
306         .num_modes      = 1,
307         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_AC_BIAS_FREQ(0xff),
308         .cmap_inverse   = 0,
309         .cmap_static    = 0,
310 };
311
312 static struct pxafb_mode_info generic_stn_640x480_mode = {
313         .pixclock       = 57692,
314         .bpp            = 8,
315         .xres           = 640,
316         .yres           = 480,
317         .hsync_len      = 4,
318         .vsync_len      = 2,
319         .left_margin    = 10,
320         .upper_margin   = 5,
321         .right_margin   = 10,
322         .lower_margin   = 5,
323         .sync           = (FB_SYNC_HOR_HIGH_ACT |
324                            FB_SYNC_VERT_HIGH_ACT),
325         .cmap_greyscale = 0,
326 };
327
328 static struct pxafb_mach_info generic_stn_640x480 = {
329         .modes          = &generic_stn_640x480_mode,
330         .num_modes      = 1,
331         .lcd_conn       = LCD_COLOR_STN_8BPP | LCD_AC_BIAS_FREQ(0xff),
332         .cmap_inverse   = 0,
333         .cmap_static    = 0,
334 };
335
336 static struct pxafb_mach_info *cmx2xx_display = &generic_crt_640x480;
337
338 static int __init cmx2xx_set_display(char *str)
339 {
340         int disp_type = simple_strtol(str, NULL, 0);
341         switch (disp_type) {
342         case MTYPE_STN320x240:
343                 cmx2xx_display = &generic_stn_320x240;
344                 break;
345         case MTYPE_TFT640x480:
346                 cmx2xx_display = &generic_tft_640x480;
347                 break;
348         case MTYPE_CRT640x480:
349                 cmx2xx_display = &generic_crt_640x480;
350                 break;
351         case MTYPE_CRT800x600:
352                 cmx2xx_display = &generic_crt_800x600;
353                 break;
354         case MTYPE_TFT320x240:
355                 cmx2xx_display = &generic_tft_320x240;
356                 break;
357         case MTYPE_STN640x480:
358                 cmx2xx_display = &generic_stn_640x480;
359                 break;
360         default: /* fallback to CRT 640x480 */
361                 cmx2xx_display = &generic_crt_640x480;
362                 break;
363         }
364         return 1;
365 }
366
367 /*
368    This should be done really early to get proper configuration for
369    frame buffer.
370    Indeed, pxafb parameters can be used istead, but CM-X2XX bootloader
371    has limitied line length for kernel command line, and also it will
372    break compatibitlty with proprietary releases already in field.
373 */
374 __setup("monitor=", cmx2xx_set_display);
375
376 static void __init cmx2xx_init_display(void)
377 {
378         set_pxa_fb_info(cmx2xx_display);
379 }
380 #else
381 static inline void cmx2xx_init_display(void) {}
382 #endif
383
384 #ifdef CONFIG_PM
385 static unsigned long sleep_save_msc[10];
386
387 static int cmx2xx_suspend(struct sys_device *dev, pm_message_t state)
388 {
389         cmx2xx_pci_suspend();
390
391         /* save MSC registers */
392         sleep_save_msc[0] = MSC0;
393         sleep_save_msc[1] = MSC1;
394         sleep_save_msc[2] = MSC2;
395
396         /* setup power saving mode registers */
397         PCFR = 0x0;
398         PSLR = 0xff400000;
399         PMCR  = 0x00000005;
400         PWER  = 0x80000000;
401         PFER  = 0x00000000;
402         PRER  = 0x00000000;
403         PGSR0 = 0xC0018800;
404         PGSR1 = 0x004F0002;
405         PGSR2 = 0x6021C000;
406         PGSR3 = 0x00020000;
407
408         return 0;
409 }
410
411 static int cmx2xx_resume(struct sys_device *dev)
412 {
413         cmx2xx_pci_resume();
414
415         /* restore MSC registers */
416         MSC0 = sleep_save_msc[0];
417         MSC1 = sleep_save_msc[1];
418         MSC2 = sleep_save_msc[2];
419
420         return 0;
421 }
422
423 static struct sysdev_class cmx2xx_pm_sysclass = {
424         .name = "pm",
425         .resume = cmx2xx_resume,
426         .suspend = cmx2xx_suspend,
427 };
428
429 static struct sys_device cmx2xx_pm_device = {
430         .cls = &cmx2xx_pm_sysclass,
431 };
432
433 static int __init cmx2xx_pm_init(void)
434 {
435         int error;
436         error = sysdev_class_register(&cmx2xx_pm_sysclass);
437         if (error == 0)
438                 error = sysdev_register(&cmx2xx_pm_device);
439         return error;
440 }
441 #else
442 static int __init cmx2xx_pm_init(void) { return 0; }
443 #endif
444
445 #if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
446 static void __init cmx2xx_init_ac97(void)
447 {
448         pxa_set_ac97_info(NULL);
449 }
450 #else
451 static inline void cmx2xx_init_ac97(void) {}
452 #endif
453
454 static void __init cmx2xx_init(void)
455 {
456         cmx2xx_pm_init();
457
458         if (cpu_is_pxa25x())
459                 cmx255_init();
460         else
461                 cmx270_init();
462
463         cmx2xx_init_dm9000();
464         cmx2xx_init_display();
465         cmx2xx_init_ac97();
466         cmx2xx_init_touchscreen();
467         cmx2xx_init_leds();
468 }
469
470 static void __init cmx2xx_init_irq(void)
471 {
472         pxa27x_init_irq();
473
474         if (cpu_is_pxa25x()) {
475                 pxa25x_init_irq();
476                 cmx2xx_pci_init_irq(CMX255_GPIO_IT8152_IRQ);
477         } else {
478                 pxa27x_init_irq();
479                 cmx2xx_pci_init_irq(CMX270_GPIO_IT8152_IRQ);
480         }
481 }
482
483 #ifdef CONFIG_PCI
484 /* Map PCI companion statically */
485 static struct map_desc cmx2xx_io_desc[] __initdata = {
486         [0] = { /* PCI bridge */
487                 .virtual        = CMX2XX_IT8152_VIRT,
488                 .pfn            = __phys_to_pfn(PXA_CS4_PHYS),
489                 .length         = SZ_64M,
490                 .type           = MT_DEVICE
491         },
492 };
493
494 static void __init cmx2xx_map_io(void)
495 {
496         pxa_map_io();
497         iotable_init(cmx2xx_io_desc, ARRAY_SIZE(cmx2xx_io_desc));
498
499         it8152_base_address = CMX2XX_IT8152_VIRT;
500 }
501 #else
502 static void __init cmx2xx_map_io(void)
503 {
504         pxa_map_io();
505 }
506 #endif
507
508 MACHINE_START(ARMCORE, "Compulab CM-X2XX")
509         .boot_params    = 0xa0000100,
510         .phys_io        = 0x40000000,
511         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
512         .map_io         = cmx2xx_map_io,
513         .init_irq       = cmx2xx_init_irq,
514         .timer          = &pxa_timer,
515         .init_machine   = cmx2xx_init,
516 MACHINE_END