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