?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Linux 2.6.31.8
[linux/fpc-iii.git] / arch / arm / mach-pxa / cm-x300.c
blob465da26591bd3e863bbce2a2bd8f8f47e1c321f7
1 /*
2 * linux/arch/arm/mach-pxa/cm-x300.c
3 *
4 * Support for the CompuLab CM-X300 modules
5 *
6 * Copyright (C) 2008 CompuLab Ltd.
7 *
8 * Mike Rapoport <mike@compulab.co.il>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
15 #include <linux/module.h>
16 #include <linux/kernel.h>
17 #include <linux/interrupt.h>
18 #include <linux/init.h>
19 #include <linux/platform_device.h>
20
21 #include <linux/gpio.h>
22 #include <linux/dm9000.h>
23 #include <linux/leds.h>
24 #include <linux/rtc-v3020.h>
25
26 #include <linux/i2c.h>
27 #include <linux/i2c/pca953x.h>
28
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <asm/setup.h>
32
33 #include <mach/pxa300.h>
34 #include <mach/pxafb.h>
35 #include <mach/mmc.h>
36 #include <mach/ohci.h>
37 #include <plat/i2c.h>
38 #include <mach/pxa3xx_nand.h>
39
40 #include <asm/mach/map.h>
41
42 #include "generic.h"
43
44 #define CM_X300_ETH_PHYS 0x08000010
45
46 #define GPIO82_MMC2_IRQ (82)
47 #define GPIO85_MMC2_WP (85)
48
49 #define CM_X300_MMC2_IRQ IRQ_GPIO(GPIO82_MMC2_IRQ)
50
51 #define GPIO95_RTC_CS (95)
52 #define GPIO96_RTC_WR (96)
53 #define GPIO97_RTC_RD (97)
54 #define GPIO98_RTC_IO (98)
55
56 static mfp_cfg_t cm_x300_mfp_cfg[] __initdata = {
57 /* LCD */
58 GPIO54_LCD_LDD_0,
59 GPIO55_LCD_LDD_1,
60 GPIO56_LCD_LDD_2,
61 GPIO57_LCD_LDD_3,
62 GPIO58_LCD_LDD_4,
63 GPIO59_LCD_LDD_5,
64 GPIO60_LCD_LDD_6,
65 GPIO61_LCD_LDD_7,
66 GPIO62_LCD_LDD_8,
67 GPIO63_LCD_LDD_9,
68 GPIO64_LCD_LDD_10,
69 GPIO65_LCD_LDD_11,
70 GPIO66_LCD_LDD_12,
71 GPIO67_LCD_LDD_13,
72 GPIO68_LCD_LDD_14,
73 GPIO69_LCD_LDD_15,
74 GPIO72_LCD_FCLK,
75 GPIO73_LCD_LCLK,
76 GPIO74_LCD_PCLK,
77 GPIO75_LCD_BIAS,
78
79 /* BTUART */
80 GPIO111_UART2_RTS,
81 GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
82 GPIO113_UART2_TXD,
83 GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
84
85 /* STUART */
86 GPIO109_UART3_TXD,
87 GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
88
89 /* AC97 */
90 GPIO23_AC97_nACRESET,
91 GPIO24_AC97_SYSCLK,
92 GPIO29_AC97_BITCLK,
93 GPIO25_AC97_SDATA_IN_0,
94 GPIO27_AC97_SDATA_OUT,
95 GPIO28_AC97_SYNC,
96
97 /* Keypad */
98 GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
99 GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
100 GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
101 GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
102 GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
103 GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
104 GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
105 GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
106 GPIO121_KP_MKOUT_0,
107 GPIO122_KP_MKOUT_1,
108 GPIO123_KP_MKOUT_2,
109 GPIO124_KP_MKOUT_3,
110 GPIO125_KP_MKOUT_4,
111 GPIO4_2_KP_MKOUT_5,
112
113 /* MMC1 */
114 GPIO3_MMC1_DAT0,
115 GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
116 GPIO5_MMC1_DAT2,
117 GPIO6_MMC1_DAT3,
118 GPIO7_MMC1_CLK,
119 GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
120
121 /* MMC2 */
122 GPIO9_MMC2_DAT0,
123 GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
124 GPIO11_MMC2_DAT2,
125 GPIO12_MMC2_DAT3,
126 GPIO13_MMC2_CLK,
127 GPIO14_MMC2_CMD,
128
129 /* FFUART */
130 GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
131 GPIO31_UART1_TXD,
132 GPIO32_UART1_CTS,
133 GPIO37_UART1_RTS,
134 GPIO33_UART1_DCD,
135 GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
136 GPIO35_UART1_RI,
137 GPIO36_UART1_DTR,
138
139 /* GPIOs */
140 GPIO79_GPIO, /* LED */
141 GPIO82_GPIO | MFP_PULL_HIGH, /* MMC CD */
142 GPIO85_GPIO, /* MMC WP */
143 GPIO99_GPIO, /* Ethernet IRQ */
144
145 /* RTC GPIOs */
146 GPIO95_GPIO, /* RTC CS */
147 GPIO96_GPIO, /* RTC WR */
148 GPIO97_GPIO, /* RTC RD */
149 GPIO98_GPIO, /* RTC IO */
150
151 /* Standard I2C */
152 GPIO21_I2C_SCL,
153 GPIO22_I2C_SDA,
154 };
155
156 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
157 static struct resource dm9000_resources[] = {
158 [0] = {
159 .start = CM_X300_ETH_PHYS,
160 .end = CM_X300_ETH_PHYS + 0x3,
161 .flags = IORESOURCE_MEM,
162 },
163 [1] = {
164 .start = CM_X300_ETH_PHYS + 0x4,
165 .end = CM_X300_ETH_PHYS + 0x4 + 500,
166 .flags = IORESOURCE_MEM,
167 },
168 [2] = {
169 .start = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
170 .end = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
171 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
172 }
173 };
174
175 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
176 .flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
177 };
178
179 static struct platform_device dm9000_device = {
180 .name = "dm9000",
181 .id = 0,
182 .num_resources = ARRAY_SIZE(dm9000_resources),
183 .resource = dm9000_resources,
184 .dev = {
185 .platform_data = &cm_x300_dm9000_platdata,
186 }
187
188 };
189
190 static void __init cm_x300_init_dm9000(void)
191 {
192 platform_device_register(&dm9000_device);
193 }
194 #else
195 static inline void cm_x300_init_dm9000(void) {}
196 #endif
197
198 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
199 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
200 [0] = {
201 .pixclock = 38000,
202 .bpp = 16,
203 .xres = 480,
204 .yres = 640,
205 .hsync_len = 8,
206 .vsync_len = 2,
207 .left_margin = 8,
208 .upper_margin = 0,
209 .right_margin = 24,
210 .lower_margin = 4,
211 .cmap_greyscale = 0,
212 },
213 [1] = {
214 .pixclock = 153800,
215 .bpp = 16,
216 .xres = 240,
217 .yres = 320,
218 .hsync_len = 8,
219 .vsync_len = 2,
220 .left_margin = 8,
221 .upper_margin = 2,
222 .right_margin = 88,
223 .lower_margin = 2,
224 .cmap_greyscale = 0,
225 },
226 };
227
228 static struct pxafb_mach_info cm_x300_lcd = {
229 .modes = cm_x300_lcd_modes,
230 .num_modes = 2,
231 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
232 };
233
234 static void __init cm_x300_init_lcd(void)
235 {
236 set_pxa_fb_info(&cm_x300_lcd);
237 }
238 #else
239 static inline void cm_x300_init_lcd(void) {}
240 #endif
241
242 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
243 static struct mtd_partition cm_x300_nand_partitions[] = {
244 [0] = {
245 .name = "OBM",
246 .offset = 0,
247 .size = SZ_256K,
248 .mask_flags = MTD_WRITEABLE, /* force read-only */
249 },
250 [1] = {
251 .name = "U-Boot",
252 .offset = MTDPART_OFS_APPEND,
253 .size = SZ_256K,
254 .mask_flags = MTD_WRITEABLE, /* force read-only */
255 },
256 [2] = {
257 .name = "Environment",
258 .offset = MTDPART_OFS_APPEND,
259 .size = SZ_256K,
260 },
261 [3] = {
262 .name = "reserved",
263 .offset = MTDPART_OFS_APPEND,
264 .size = SZ_256K + SZ_1M,
265 .mask_flags = MTD_WRITEABLE, /* force read-only */
266 },
267 [4] = {
268 .name = "kernel",
269 .offset = MTDPART_OFS_APPEND,
270 .size = SZ_4M,
271 },
272 [5] = {
273 .name = "fs",
274 .offset = MTDPART_OFS_APPEND,
275 .size = MTDPART_SIZ_FULL,
276 },
277 };
278
279 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
280 .enable_arbiter = 1,
281 .keep_config = 1,
282 .parts = cm_x300_nand_partitions,
283 .nr_parts = ARRAY_SIZE(cm_x300_nand_partitions),
284 };
285
286 static void __init cm_x300_init_nand(void)
287 {
288 pxa3xx_set_nand_info(&cm_x300_nand_info);
289 }
290 #else
291 static inline void cm_x300_init_nand(void) {}
292 #endif
293
294 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
295 /* The first MMC slot of CM-X300 is hardwired to Libertas card and has
296 no detection/ro pins */
297 static int cm_x300_mci_init(struct device *dev,
298 irq_handler_t cm_x300_detect_int,
299 void *data)
300 {
301 return 0;
302 }
303
304 static void cm_x300_mci_exit(struct device *dev, void *data)
305 {
306 }
307
308 static struct pxamci_platform_data cm_x300_mci_platform_data = {
309 .detect_delay = 20,
310 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
311 .init = cm_x300_mci_init,
312 .exit = cm_x300_mci_exit,
313 };
314
315 static int cm_x300_mci2_ro(struct device *dev)
316 {
317 return gpio_get_value(GPIO85_MMC2_WP);
318 }
319
320 static int cm_x300_mci2_init(struct device *dev,
321 irq_handler_t cm_x300_detect_int,
322 void *data)
323 {
324 int err;
325
326 /*
327 * setup GPIO for CM-X300 MMC controller
328 */
329 err = gpio_request(GPIO82_MMC2_IRQ, "mmc card detect");
330 if (err)
331 goto err_request_cd;
332 gpio_direction_input(GPIO82_MMC2_IRQ);
333
334 err = gpio_request(GPIO85_MMC2_WP, "mmc write protect");
335 if (err)
336 goto err_request_wp;
337 gpio_direction_input(GPIO85_MMC2_WP);
338
339 err = request_irq(CM_X300_MMC2_IRQ, cm_x300_detect_int,
340 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
341 "MMC card detect", data);
342 if (err) {
343 printk(KERN_ERR "%s: MMC/SD/SDIO: "
344 "can't request card detect IRQ\n", __func__);
345 goto err_request_irq;
346 }
347
348 return 0;
349
350 err_request_irq:
351 gpio_free(GPIO85_MMC2_WP);
352 err_request_wp:
353 gpio_free(GPIO82_MMC2_IRQ);
354 err_request_cd:
355 return err;
356 }
357
358 static void cm_x300_mci2_exit(struct device *dev, void *data)
359 {
360 free_irq(CM_X300_MMC2_IRQ, data);
361 gpio_free(GPIO82_MMC2_IRQ);
362 gpio_free(GPIO85_MMC2_WP);
363 }
364
365 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
366 .detect_delay = 20,
367 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
368 .init = cm_x300_mci2_init,
369 .exit = cm_x300_mci2_exit,
370 .get_ro = cm_x300_mci2_ro,
371 };
372
373 static void __init cm_x300_init_mmc(void)
374 {
375 pxa_set_mci_info(&cm_x300_mci_platform_data);
376 pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
377 }
378 #else
379 static inline void cm_x300_init_mmc(void) {}
380 #endif
381
382 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
383 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
384 .port_mode = PMM_PERPORT_MODE,
385 .flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
386 };
387
388 static void __init cm_x300_init_ohci(void)
389 {
390 pxa_set_ohci_info(&cm_x300_ohci_platform_data);
391 }
392 #else
393 static inline void cm_x300_init_ohci(void) {}
394 #endif
395
396 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
397 static struct gpio_led cm_x300_leds[] = {
398 [0] = {
399 .name = "cm-x300:green",
400 .default_trigger = "heartbeat",
401 .gpio = 79,
402 .active_low = 1,
403 },
404 };
405
406 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
407 .num_leds = ARRAY_SIZE(cm_x300_leds),
408 .leds = cm_x300_leds,
409 };
410
411 static struct platform_device cm_x300_led_device = {
412 .name = "leds-gpio",
413 .id = -1,
414 .dev = {
415 .platform_data = &cm_x300_gpio_led_pdata,
416 },
417 };
418
419 static void __init cm_x300_init_leds(void)
420 {
421 platform_device_register(&cm_x300_led_device);
422 }
423 #else
424 static inline void cm_x300_init_leds(void) {}
425 #endif
426
427 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
428 /* PCA9555 */
429 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
430 .gpio_base = 128,
431 };
432
433 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
434 .gpio_base = 144,
435 };
436
437 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
438 [0] = {
439 I2C_BOARD_INFO("pca9555", 0x24),
440 .platform_data = &cm_x300_gpio_ext_pdata_0,
441 },
442 [1] = {
443 I2C_BOARD_INFO("pca9555", 0x25),
444 .platform_data = &cm_x300_gpio_ext_pdata_1,
445 },
446 };
447
448 static void __init cm_x300_init_i2c(void)
449 {
450 pxa_set_i2c_info(NULL);
451 i2c_register_board_info(0, cm_x300_gpio_ext_info,
452 ARRAY_SIZE(cm_x300_gpio_ext_info));
453 }
454 #else
455 static inline void cm_x300_init_i2c(void) {}
456 #endif
457
458 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
459 struct v3020_platform_data cm_x300_v3020_pdata = {
460 .use_gpio = 1,
461 .gpio_cs = GPIO95_RTC_CS,
462 .gpio_wr = GPIO96_RTC_WR,
463 .gpio_rd = GPIO97_RTC_RD,
464 .gpio_io = GPIO98_RTC_IO,
465 };
466
467 static struct platform_device cm_x300_rtc_device = {
468 .name = "v3020",
469 .id = -1,
470 .dev = {
471 .platform_data = &cm_x300_v3020_pdata,
472 }
473 };
474
475 static void __init cm_x300_init_rtc(void)
476 {
477 platform_device_register(&cm_x300_rtc_device);
478 }
479 #else
480 static inline void cm_x300_init_rtc(void) {}
481 #endif
482
483 static void __init cm_x300_init(void)
484 {
485 /* board-processor specific GPIO initialization */
486 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
487
488 cm_x300_init_dm9000();
489 cm_x300_init_lcd();
490 cm_x300_init_ohci();
491 cm_x300_init_mmc();
492 cm_x300_init_nand();
493 cm_x300_init_leds();
494 cm_x300_init_i2c();
495 cm_x300_init_rtc();
496 }
497
498 static void __init cm_x300_fixup(struct machine_desc *mdesc, struct tag *tags,
499 char **cmdline, struct meminfo *mi)
500 {
501 mi->nr_banks = 2;
502 mi->bank[0].start = 0xa0000000;
503 mi->bank[0].node = 0;
504 mi->bank[0].size = (64*1024*1024);
505 mi->bank[1].start = 0xc0000000;
506 mi->bank[1].node = 0;
507 mi->bank[1].size = (64*1024*1024);
508 }
509
510 MACHINE_START(CM_X300, "CM-X300 module")
511 .phys_io = 0x40000000,
512 .boot_params = 0xa0000100,
513 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
514 .map_io = pxa_map_io,
515 .init_irq = pxa3xx_init_irq,
516 .timer = &pxa_timer,
517 .init_machine = cm_x300_init,
518 .fixup = cm_x300_fixup,
519 MACHINE_END
Linux with added FPC-III support