Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy...
[linux-2.6] / arch / arm / mach-pxa / lpd270.c
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
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/sysdev.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_backlight.h>
27
28 #include <asm/types.h>
29 #include <asm/setup.h>
30 #include <asm/memory.h>
31 #include <asm/mach-types.h>
32 #include <mach/hardware.h>
33 #include <asm/irq.h>
34 #include <asm/sizes.h>
35
36 #include <asm/mach/arch.h>
37 #include <asm/mach/map.h>
38 #include <asm/mach/irq.h>
39 #include <asm/mach/flash.h>
40
41 #include <mach/pxa27x.h>
42 #include <mach/gpio.h>
43 #include <mach/lpd270.h>
44 #include <mach/audio.h>
45 #include <mach/pxafb.h>
46 #include <mach/mmc.h>
47 #include <mach/irda.h>
48 #include <mach/ohci.h>
49
50 #include "generic.h"
51 #include "devices.h"
52
53 static unsigned long lpd270_pin_config[] __initdata = {
54         /* Chip Selects */
55         GPIO15_nCS_1,   /* Mainboard Flash */
56         GPIO78_nCS_2,   /* CPLD + Ethernet */
57
58         /* LCD - 16bpp Active TFT */
59         GPIO58_LCD_LDD_0,
60         GPIO59_LCD_LDD_1,
61         GPIO60_LCD_LDD_2,
62         GPIO61_LCD_LDD_3,
63         GPIO62_LCD_LDD_4,
64         GPIO63_LCD_LDD_5,
65         GPIO64_LCD_LDD_6,
66         GPIO65_LCD_LDD_7,
67         GPIO66_LCD_LDD_8,
68         GPIO67_LCD_LDD_9,
69         GPIO68_LCD_LDD_10,
70         GPIO69_LCD_LDD_11,
71         GPIO70_LCD_LDD_12,
72         GPIO71_LCD_LDD_13,
73         GPIO72_LCD_LDD_14,
74         GPIO73_LCD_LDD_15,
75         GPIO74_LCD_FCLK,
76         GPIO75_LCD_LCLK,
77         GPIO76_LCD_PCLK,
78         GPIO77_LCD_BIAS,
79         GPIO16_PWM0_OUT,        /* Backlight */
80
81         /* USB Host */
82         GPIO88_USBH1_PWR,
83         GPIO89_USBH1_PEN,
84
85         /* AC97 */
86         GPIO45_AC97_SYSCLK,
87
88         GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
89 };
90
91 static unsigned int lpd270_irq_enabled;
92
93 static void lpd270_mask_irq(unsigned int irq)
94 {
95         int lpd270_irq = irq - LPD270_IRQ(0);
96
97         __raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS);
98
99         lpd270_irq_enabled &= ~(1 << lpd270_irq);
100         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
101 }
102
103 static void lpd270_unmask_irq(unsigned int irq)
104 {
105         int lpd270_irq = irq - LPD270_IRQ(0);
106
107         lpd270_irq_enabled |= 1 << lpd270_irq;
108         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
109 }
110
111 static struct irq_chip lpd270_irq_chip = {
112         .name           = "CPLD",
113         .ack            = lpd270_mask_irq,
114         .mask           = lpd270_mask_irq,
115         .unmask         = lpd270_unmask_irq,
116 };
117
118 static void lpd270_irq_handler(unsigned int irq, struct irq_desc *desc)
119 {
120         unsigned long pending;
121
122         pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
123         do {
124                 GEDR(0) = GPIO_bit(0);  /* clear useless edge notification */
125                 if (likely(pending)) {
126                         irq = LPD270_IRQ(0) + __ffs(pending);
127                         generic_handle_irq(irq);
128
129                         pending = __raw_readw(LPD270_INT_STATUS) &
130                                                 lpd270_irq_enabled;
131                 }
132         } while (pending);
133 }
134
135 static void __init lpd270_init_irq(void)
136 {
137         int irq;
138
139         pxa27x_init_irq();
140
141         __raw_writew(0, LPD270_INT_MASK);
142         __raw_writew(0, LPD270_INT_STATUS);
143
144         /* setup extra LogicPD PXA270 irqs */
145         for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) {
146                 set_irq_chip(irq, &lpd270_irq_chip);
147                 set_irq_handler(irq, handle_level_irq);
148                 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
149         }
150         set_irq_chained_handler(IRQ_GPIO(0), lpd270_irq_handler);
151         set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
152 }
153
154
155 #ifdef CONFIG_PM
156 static int lpd270_irq_resume(struct sys_device *dev)
157 {
158         __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
159         return 0;
160 }
161
162 static struct sysdev_class lpd270_irq_sysclass = {
163         .name = "cpld_irq",
164         .resume = lpd270_irq_resume,
165 };
166
167 static struct sys_device lpd270_irq_device = {
168         .cls = &lpd270_irq_sysclass,
169 };
170
171 static int __init lpd270_irq_device_init(void)
172 {
173         int ret = -ENODEV;
174         if (machine_is_logicpd_pxa270()) {
175                 ret = sysdev_class_register(&lpd270_irq_sysclass);
176                 if (ret == 0)
177                         ret = sysdev_register(&lpd270_irq_device);
178         }
179         return ret;
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,
196         },
197 };
198
199 static struct platform_device smc91x_device = {
200         .name           = "smc91x",
201         .id             = 0,
202         .num_resources  = ARRAY_SIZE(smc91x_resources),
203         .resource       = smc91x_resources,
204 };
205
206 static struct resource lpd270_flash_resources[] = {
207         [0] = {
208                 .start  = PXA_CS0_PHYS,
209                 .end    = PXA_CS0_PHYS + SZ_64M - 1,
210                 .flags  = IORESOURCE_MEM,
211         },
212         [1] = {
213                 .start  = PXA_CS1_PHYS,
214                 .end    = PXA_CS1_PHYS + SZ_64M - 1,
215                 .flags  = IORESOURCE_MEM,
216         },
217 };
218
219 static struct mtd_partition lpd270_flash0_partitions[] = {
220         {
221                 .name =         "Bootloader",
222                 .size =         0x00040000,
223                 .offset =       0,
224                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
225         }, {
226                 .name =         "Kernel",
227                 .size =         0x00400000,
228                 .offset =       0x00040000,
229         }, {
230                 .name =         "Filesystem",
231                 .size =         MTDPART_SIZ_FULL,
232                 .offset =       0x00440000
233         },
234 };
235
236 static struct flash_platform_data lpd270_flash_data[2] = {
237         {
238                 .name           = "processor-flash",
239                 .map_name       = "cfi_probe",
240                 .parts          = lpd270_flash0_partitions,
241                 .nr_parts       = ARRAY_SIZE(lpd270_flash0_partitions),
242         }, {
243                 .name           = "mainboard-flash",
244                 .map_name       = "cfi_probe",
245                 .parts          = NULL,
246                 .nr_parts       = 0,
247         }
248 };
249
250 static struct platform_device lpd270_flash_device[2] = {
251         {
252                 .name           = "pxa2xx-flash",
253                 .id             = 0,
254                 .dev = {
255                         .platform_data  = &lpd270_flash_data[0],
256                 },
257                 .resource       = &lpd270_flash_resources[0],
258                 .num_resources  = 1,
259         }, {
260                 .name           = "pxa2xx-flash",
261                 .id             = 1,
262                 .dev = {
263                         .platform_data  = &lpd270_flash_data[1],
264                 },
265                 .resource       = &lpd270_flash_resources[1],
266                 .num_resources  = 1,
267         },
268 };
269
270 static struct platform_pwm_backlight_data lpd270_backlight_data = {
271         .pwm_id         = 0,
272         .max_brightness = 1,
273         .dft_brightness = 1,
274         .pwm_period_ns  = 78770,
275 };
276
277 static struct platform_device lpd270_backlight_device = {
278         .name           = "pwm-backlight",
279         .dev            = {
280                 .parent = &pxa27x_device_pwm0.dev,
281                 .platform_data = &lpd270_backlight_data,
282         },
283 };
284
285 /* 5.7" TFT QVGA (LoLo display number 1) */
286 static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
287         .pixclock               = 150000,
288         .xres                   = 320,
289         .yres                   = 240,
290         .bpp                    = 16,
291         .hsync_len              = 0x14,
292         .left_margin            = 0x28,
293         .right_margin           = 0x0a,
294         .vsync_len              = 0x02,
295         .upper_margin           = 0x08,
296         .lower_margin           = 0x14,
297         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
298 };
299
300 static struct pxafb_mach_info sharp_lq057q3dc02 = {
301         .modes                  = &sharp_lq057q3dc02_mode,
302         .num_modes              = 1,
303         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
304                                   LCD_ALTERNATE_MAPPING,
305 };
306
307 /* 12.1" TFT SVGA (LoLo display number 2) */
308 static struct pxafb_mode_info sharp_lq121s1dg31_mode = {
309         .pixclock               = 50000,
310         .xres                   = 800,
311         .yres                   = 600,
312         .bpp                    = 16,
313         .hsync_len              = 0x05,
314         .left_margin            = 0x52,
315         .right_margin           = 0x05,
316         .vsync_len              = 0x04,
317         .upper_margin           = 0x14,
318         .lower_margin           = 0x0a,
319         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
320 };
321
322 static struct pxafb_mach_info sharp_lq121s1dg31 = {
323         .modes                  = &sharp_lq121s1dg31_mode,
324         .num_modes              = 1,
325         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
326                                   LCD_ALTERNATE_MAPPING,
327 };
328
329 /* 3.6" TFT QVGA (LoLo display number 3) */
330 static struct pxafb_mode_info sharp_lq036q1da01_mode = {
331         .pixclock               = 150000,
332         .xres                   = 320,
333         .yres                   = 240,
334         .bpp                    = 16,
335         .hsync_len              = 0x0e,
336         .left_margin            = 0x04,
337         .right_margin           = 0x0a,
338         .vsync_len              = 0x03,
339         .upper_margin           = 0x03,
340         .lower_margin           = 0x03,
341         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
342 };
343
344 static struct pxafb_mach_info sharp_lq036q1da01 = {
345         .modes                  = &sharp_lq036q1da01_mode,
346         .num_modes              = 1,
347         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
348                                   LCD_ALTERNATE_MAPPING,
349 };
350
351 /* 6.4" TFT VGA (LoLo display number 5) */
352 static struct pxafb_mode_info sharp_lq64d343_mode = {
353         .pixclock               = 25000,
354         .xres                   = 640,
355         .yres                   = 480,
356         .bpp                    = 16,
357         .hsync_len              = 0x31,
358         .left_margin            = 0x89,
359         .right_margin           = 0x19,
360         .vsync_len              = 0x12,
361         .upper_margin           = 0x22,
362         .lower_margin           = 0x00,
363         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
364 };
365
366 static struct pxafb_mach_info sharp_lq64d343 = {
367         .modes                  = &sharp_lq64d343_mode,
368         .num_modes              = 1,
369         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
370                                   LCD_ALTERNATE_MAPPING,
371 };
372
373 /* 10.4" TFT VGA (LoLo display number 7) */
374 static struct pxafb_mode_info sharp_lq10d368_mode = {
375         .pixclock               = 25000,
376         .xres                   = 640,
377         .yres                   = 480,
378         .bpp                    = 16,
379         .hsync_len              = 0x31,
380         .left_margin            = 0x89,
381         .right_margin           = 0x19,
382         .vsync_len              = 0x12,
383         .upper_margin           = 0x22,
384         .lower_margin           = 0x00,
385         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
386 };
387
388 static struct pxafb_mach_info sharp_lq10d368 = {
389         .modes                  = &sharp_lq10d368_mode,
390         .num_modes              = 1,
391         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
392                                   LCD_ALTERNATE_MAPPING,
393 };
394
395 /* 3.5" TFT QVGA (LoLo display number 8) */
396 static struct pxafb_mode_info sharp_lq035q7db02_20_mode = {
397         .pixclock               = 150000,
398         .xres                   = 240,
399         .yres                   = 320,
400         .bpp                    = 16,
401         .hsync_len              = 0x0e,
402         .left_margin            = 0x0a,
403         .right_margin           = 0x0a,
404         .vsync_len              = 0x03,
405         .upper_margin           = 0x05,
406         .lower_margin           = 0x14,
407         .sync                   = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
408 };
409
410 static struct pxafb_mach_info sharp_lq035q7db02_20 = {
411         .modes                  = &sharp_lq035q7db02_20_mode,
412         .num_modes              = 1,
413         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
414                                   LCD_ALTERNATE_MAPPING,
415 };
416
417 static struct pxafb_mach_info *lpd270_lcd_to_use;
418
419 static int __init lpd270_set_lcd(char *str)
420 {
421         if (!strnicmp(str, "lq057q3dc02", 11)) {
422                 lpd270_lcd_to_use = &sharp_lq057q3dc02;
423         } else if (!strnicmp(str, "lq121s1dg31", 11)) {
424                 lpd270_lcd_to_use = &sharp_lq121s1dg31;
425         } else if (!strnicmp(str, "lq036q1da01", 11)) {
426                 lpd270_lcd_to_use = &sharp_lq036q1da01;
427         } else if (!strnicmp(str, "lq64d343", 8)) {
428                 lpd270_lcd_to_use = &sharp_lq64d343;
429         } else if (!strnicmp(str, "lq10d368", 8)) {
430                 lpd270_lcd_to_use = &sharp_lq10d368;
431         } else if (!strnicmp(str, "lq035q7db02-20", 14)) {
432                 lpd270_lcd_to_use = &sharp_lq035q7db02_20;
433         } else {
434                 printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
435         }
436
437         return 1;
438 }
439
440 __setup("lcd=", lpd270_set_lcd);
441
442 static struct platform_device *platform_devices[] __initdata = {
443         &smc91x_device,
444         &lpd270_backlight_device,
445         &lpd270_flash_device[0],
446         &lpd270_flash_device[1],
447 };
448
449 static struct pxaohci_platform_data lpd270_ohci_platform_data = {
450         .port_mode      = PMM_PERPORT_MODE,
451         .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
452 };
453
454 static void __init lpd270_init(void)
455 {
456         pxa2xx_mfp_config(ARRAY_AND_SIZE(lpd270_pin_config));
457
458         lpd270_flash_data[0].width = (BOOT_DEF & 1) ? 2 : 4;
459         lpd270_flash_data[1].width = 4;
460
461         /*
462          * System bus arbiter setting:
463          * - Core_Park
464          * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
465          */
466         ARB_CNTRL = ARB_CORE_PARK | 0x234;
467
468         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
469
470         pxa_set_ac97_info(NULL);
471
472         if (lpd270_lcd_to_use != NULL)
473                 set_pxa_fb_info(lpd270_lcd_to_use);
474
475         pxa_set_ohci_info(&lpd270_ohci_platform_data);
476 }
477
478
479 static struct map_desc lpd270_io_desc[] __initdata = {
480         {
481                 .virtual        = LPD270_CPLD_VIRT,
482                 .pfn            = __phys_to_pfn(LPD270_CPLD_PHYS),
483                 .length         = LPD270_CPLD_SIZE,
484                 .type           = MT_DEVICE,
485         },
486 };
487
488 static void __init lpd270_map_io(void)
489 {
490         pxa_map_io();
491         iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
492
493         /* for use I SRAM as framebuffer.  */
494         PSLR |= 0x00000F04;
495         PCFR  = 0x00000066;
496 }
497
498 MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
499         /* Maintainer: Peter Barada */
500         .phys_io        = 0x40000000,
501         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
502         .boot_params    = 0xa0000100,
503         .map_io         = lpd270_map_io,
504         .init_irq       = lpd270_init_irq,
505         .timer          = &pxa_timer,
506         .init_machine   = lpd270_init,
507 MACHINE_END