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fix a kmap leak in virtio_console
[linux/fpc-iii.git] / arch / arm / mach-pxa / lpd270.c
blob9f6ec167902a6bc1c2db823d257e006550a3c3b0
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_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/lpd270.h>
43 #include <mach/audio.h>
44 #include <linux/platform_data/video-pxafb.h>
45 #include <linux/platform_data/mmc-pxamci.h>
46 #include <linux/platform_data/irda-pxaficp.h>
47 #include <linux/platform_data/usb-ohci-pxa27x.h>
48 #include <mach/smemc.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 GPIO28_AC97_BITCLK,
87 GPIO29_AC97_SDATA_IN_0,
88 GPIO30_AC97_SDATA_OUT,
89 GPIO31_AC97_SYNC,
90 GPIO45_AC97_SYSCLK,
91
92 GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
93 };
94
95 static unsigned int lpd270_irq_enabled;
96
97 static void lpd270_mask_irq(struct irq_data *d)
98 {
99 int lpd270_irq = d->irq - LPD270_IRQ(0);
100
101 __raw_writew(~(1 << lpd270_irq), LPD270_INT_STATUS);
102
103 lpd270_irq_enabled &= ~(1 << lpd270_irq);
104 __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
105 }
106
107 static void lpd270_unmask_irq(struct irq_data *d)
108 {
109 int lpd270_irq = d->irq - LPD270_IRQ(0);
110
111 lpd270_irq_enabled |= 1 << lpd270_irq;
112 __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
113 }
114
115 static struct irq_chip lpd270_irq_chip = {
116 .name = "CPLD",
117 .irq_ack = lpd270_mask_irq,
118 .irq_mask = lpd270_mask_irq,
119 .irq_unmask = lpd270_unmask_irq,
120 };
121
122 static void lpd270_irq_handler(unsigned int irq, struct irq_desc *desc)
123 {
124 unsigned long pending;
125
126 pending = __raw_readw(LPD270_INT_STATUS) & lpd270_irq_enabled;
127 do {
128 /* clear useless edge notification */
129 desc->irq_data.chip->irq_ack(&desc->irq_data);
130 if (likely(pending)) {
131 irq = LPD270_IRQ(0) + __ffs(pending);
132 generic_handle_irq(irq);
133
134 pending = __raw_readw(LPD270_INT_STATUS) &
135 lpd270_irq_enabled;
136 }
137 } while (pending);
138 }
139
140 static void __init lpd270_init_irq(void)
141 {
142 int irq;
143
144 pxa27x_init_irq();
145
146 __raw_writew(0, LPD270_INT_MASK);
147 __raw_writew(0, LPD270_INT_STATUS);
148
149 /* setup extra LogicPD PXA270 irqs */
150 for (irq = LPD270_IRQ(2); irq <= LPD270_IRQ(4); irq++) {
151 irq_set_chip_and_handler(irq, &lpd270_irq_chip,
152 handle_level_irq);
153 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
154 }
155 irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lpd270_irq_handler);
156 irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
157 }
158
159
160 #ifdef CONFIG_PM
161 static void lpd270_irq_resume(void)
162 {
163 __raw_writew(lpd270_irq_enabled, LPD270_INT_MASK);
164 }
165
166 static struct syscore_ops lpd270_irq_syscore_ops = {
167 .resume = lpd270_irq_resume,
168 };
169
170 static int __init lpd270_irq_device_init(void)
171 {
172 if (machine_is_logicpd_pxa270()) {
173 register_syscore_ops(&lpd270_irq_syscore_ops);
174 return 0;
175 }
176 return -ENODEV;
177 }
178
179 device_initcall(lpd270_irq_device_init);
180 #endif
181
182
183 static struct resource smc91x_resources[] = {
184 [0] = {
185 .start = LPD270_ETH_PHYS,
186 .end = (LPD270_ETH_PHYS + 0xfffff),
187 .flags = IORESOURCE_MEM,
188 },
189 [1] = {
190 .start = LPD270_ETHERNET_IRQ,
191 .end = LPD270_ETHERNET_IRQ,
192 .flags = IORESOURCE_IRQ,
193 },
194 };
195
196 static struct platform_device smc91x_device = {
197 .name = "smc91x",
198 .id = 0,
199 .num_resources = ARRAY_SIZE(smc91x_resources),
200 .resource = smc91x_resources,
201 };
202
203 static struct resource lpd270_flash_resources[] = {
204 [0] = {
205 .start = PXA_CS0_PHYS,
206 .end = PXA_CS0_PHYS + SZ_64M - 1,
207 .flags = IORESOURCE_MEM,
208 },
209 [1] = {
210 .start = PXA_CS1_PHYS,
211 .end = PXA_CS1_PHYS + SZ_64M - 1,
212 .flags = IORESOURCE_MEM,
213 },
214 };
215
216 static struct mtd_partition lpd270_flash0_partitions[] = {
217 {
218 .name = "Bootloader",
219 .size = 0x00040000,
220 .offset = 0,
221 .mask_flags = MTD_WRITEABLE /* force read-only */
222 }, {
223 .name = "Kernel",
224 .size = 0x00400000,
225 .offset = 0x00040000,
226 }, {
227 .name = "Filesystem",
228 .size = MTDPART_SIZ_FULL,
229 .offset = 0x00440000
230 },
231 };
232
233 static struct flash_platform_data lpd270_flash_data[2] = {
234 {
235 .name = "processor-flash",
236 .map_name = "cfi_probe",
237 .parts = lpd270_flash0_partitions,
238 .nr_parts = ARRAY_SIZE(lpd270_flash0_partitions),
239 }, {
240 .name = "mainboard-flash",
241 .map_name = "cfi_probe",
242 .parts = NULL,
243 .nr_parts = 0,
244 }
245 };
246
247 static struct platform_device lpd270_flash_device[2] = {
248 {
249 .name = "pxa2xx-flash",
250 .id = 0,
251 .dev = {
252 .platform_data = &lpd270_flash_data[0],
253 },
254 .resource = &lpd270_flash_resources[0],
255 .num_resources = 1,
256 }, {
257 .name = "pxa2xx-flash",
258 .id = 1,
259 .dev = {
260 .platform_data = &lpd270_flash_data[1],
261 },
262 .resource = &lpd270_flash_resources[1],
263 .num_resources = 1,
264 },
265 };
266
267 static struct platform_pwm_backlight_data lpd270_backlight_data = {
268 .pwm_id = 0,
269 .max_brightness = 1,
270 .dft_brightness = 1,
271 .pwm_period_ns = 78770,
272 .enable_gpio = -1,
273 };
274
275 static struct platform_device lpd270_backlight_device = {
276 .name = "pwm-backlight",
277 .dev = {
278 .parent = &pxa27x_device_pwm0.dev,
279 .platform_data = &lpd270_backlight_data,
280 },
281 };
282
283 /* 5.7" TFT QVGA (LoLo display number 1) */
284 static struct pxafb_mode_info sharp_lq057q3dc02_mode = {
285 .pixclock = 150000,
286 .xres = 320,
287 .yres = 240,
288 .bpp = 16,
289 .hsync_len = 0x14,
290 .left_margin = 0x28,
291 .right_margin = 0x0a,
292 .vsync_len = 0x02,
293 .upper_margin = 0x08,
294 .lower_margin = 0x14,
295 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
296 };
297
298 static struct pxafb_mach_info sharp_lq057q3dc02 = {
299 .modes = &sharp_lq057q3dc02_mode,
300 .num_modes = 1,
301 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
302 LCD_ALTERNATE_MAPPING,
303 };
304
305 /* 12.1" TFT SVGA (LoLo display number 2) */
306 static struct pxafb_mode_info sharp_lq121s1dg31_mode = {
307 .pixclock = 50000,
308 .xres = 800,
309 .yres = 600,
310 .bpp = 16,
311 .hsync_len = 0x05,
312 .left_margin = 0x52,
313 .right_margin = 0x05,
314 .vsync_len = 0x04,
315 .upper_margin = 0x14,
316 .lower_margin = 0x0a,
317 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
318 };
319
320 static struct pxafb_mach_info sharp_lq121s1dg31 = {
321 .modes = &sharp_lq121s1dg31_mode,
322 .num_modes = 1,
323 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
324 LCD_ALTERNATE_MAPPING,
325 };
326
327 /* 3.6" TFT QVGA (LoLo display number 3) */
328 static struct pxafb_mode_info sharp_lq036q1da01_mode = {
329 .pixclock = 150000,
330 .xres = 320,
331 .yres = 240,
332 .bpp = 16,
333 .hsync_len = 0x0e,
334 .left_margin = 0x04,
335 .right_margin = 0x0a,
336 .vsync_len = 0x03,
337 .upper_margin = 0x03,
338 .lower_margin = 0x03,
339 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
340 };
341
342 static struct pxafb_mach_info sharp_lq036q1da01 = {
343 .modes = &sharp_lq036q1da01_mode,
344 .num_modes = 1,
345 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
346 LCD_ALTERNATE_MAPPING,
347 };
348
349 /* 6.4" TFT VGA (LoLo display number 5) */
350 static struct pxafb_mode_info sharp_lq64d343_mode = {
351 .pixclock = 25000,
352 .xres = 640,
353 .yres = 480,
354 .bpp = 16,
355 .hsync_len = 0x31,
356 .left_margin = 0x89,
357 .right_margin = 0x19,
358 .vsync_len = 0x12,
359 .upper_margin = 0x22,
360 .lower_margin = 0x00,
361 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
362 };
363
364 static struct pxafb_mach_info sharp_lq64d343 = {
365 .modes = &sharp_lq64d343_mode,
366 .num_modes = 1,
367 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
368 LCD_ALTERNATE_MAPPING,
369 };
370
371 /* 10.4" TFT VGA (LoLo display number 7) */
372 static struct pxafb_mode_info sharp_lq10d368_mode = {
373 .pixclock = 25000,
374 .xres = 640,
375 .yres = 480,
376 .bpp = 16,
377 .hsync_len = 0x31,
378 .left_margin = 0x89,
379 .right_margin = 0x19,
380 .vsync_len = 0x12,
381 .upper_margin = 0x22,
382 .lower_margin = 0x00,
383 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
384 };
385
386 static struct pxafb_mach_info sharp_lq10d368 = {
387 .modes = &sharp_lq10d368_mode,
388 .num_modes = 1,
389 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
390 LCD_ALTERNATE_MAPPING,
391 };
392
393 /* 3.5" TFT QVGA (LoLo display number 8) */
394 static struct pxafb_mode_info sharp_lq035q7db02_20_mode = {
395 .pixclock = 150000,
396 .xres = 240,
397 .yres = 320,
398 .bpp = 16,
399 .hsync_len = 0x0e,
400 .left_margin = 0x0a,
401 .right_margin = 0x0a,
402 .vsync_len = 0x03,
403 .upper_margin = 0x05,
404 .lower_margin = 0x14,
405 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
406 };
407
408 static struct pxafb_mach_info sharp_lq035q7db02_20 = {
409 .modes = &sharp_lq035q7db02_20_mode,
410 .num_modes = 1,
411 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL |
412 LCD_ALTERNATE_MAPPING,
413 };
414
415 static struct pxafb_mach_info *lpd270_lcd_to_use;
416
417 static int __init lpd270_set_lcd(char *str)
418 {
419 if (!strnicmp(str, "lq057q3dc02", 11)) {
420 lpd270_lcd_to_use = &sharp_lq057q3dc02;
421 } else if (!strnicmp(str, "lq121s1dg31", 11)) {
422 lpd270_lcd_to_use = &sharp_lq121s1dg31;
423 } else if (!strnicmp(str, "lq036q1da01", 11)) {
424 lpd270_lcd_to_use = &sharp_lq036q1da01;
425 } else if (!strnicmp(str, "lq64d343", 8)) {
426 lpd270_lcd_to_use = &sharp_lq64d343;
427 } else if (!strnicmp(str, "lq10d368", 8)) {
428 lpd270_lcd_to_use = &sharp_lq10d368;
429 } else if (!strnicmp(str, "lq035q7db02-20", 14)) {
430 lpd270_lcd_to_use = &sharp_lq035q7db02_20;
431 } else {
432 printk(KERN_INFO "lpd270: unknown lcd panel [%s]\n", str);
433 }
434
435 return 1;
436 }
437
438 __setup("lcd=", lpd270_set_lcd);
439
440 static struct platform_device *platform_devices[] __initdata = {
441 &smc91x_device,
442 &lpd270_backlight_device,
443 &lpd270_flash_device[0],
444 &lpd270_flash_device[1],
445 };
446
447 static struct pxaohci_platform_data lpd270_ohci_platform_data = {
448 .port_mode = PMM_PERPORT_MODE,
449 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
450 };
451
452 static void __init lpd270_init(void)
453 {
454 pxa2xx_mfp_config(ARRAY_AND_SIZE(lpd270_pin_config));
455
456 pxa_set_ffuart_info(NULL);
457 pxa_set_btuart_info(NULL);
458 pxa_set_stuart_info(NULL);
459
460 lpd270_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
461 lpd270_flash_data[1].width = 4;
462
463 /*
464 * System bus arbiter setting:
465 * - Core_Park
466 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
467 */
468 ARB_CNTRL = ARB_CORE_PARK | 0x234;
469
470 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
471
472 pxa_set_ac97_info(NULL);
473
474 if (lpd270_lcd_to_use != NULL)
475 pxa_set_fb_info(NULL, lpd270_lcd_to_use);
476
477 pxa_set_ohci_info(&lpd270_ohci_platform_data);
478 }
479
480
481 static struct map_desc lpd270_io_desc[] __initdata = {
482 {
483 .virtual = (unsigned long)LPD270_CPLD_VIRT,
484 .pfn = __phys_to_pfn(LPD270_CPLD_PHYS),
485 .length = LPD270_CPLD_SIZE,
486 .type = MT_DEVICE,
487 },
488 };
489
490 static void __init lpd270_map_io(void)
491 {
492 pxa27x_map_io();
493 iotable_init(lpd270_io_desc, ARRAY_SIZE(lpd270_io_desc));
494
495 /* for use I SRAM as framebuffer. */
496 PSLR |= 0x00000F04;
497 PCFR = 0x00000066;
498 }
499
500 MACHINE_START(LOGICPD_PXA270, "LogicPD PXA270 Card Engine")
501 /* Maintainer: Peter Barada */
502 .atag_offset = 0x100,
503 .map_io = lpd270_map_io,
504 .nr_irqs = LPD270_NR_IRQS,
505 .init_irq = lpd270_init_irq,
506 .handle_irq = pxa27x_handle_irq,
507 .init_time = pxa_timer_init,
508 .init_machine = lpd270_init,
509 .restart = pxa_restart,
510 MACHINE_END
Linux with added FPC-III support