1 /*
2 * linux/arch/arm/mach-pxa/cm-x300.c
3 *
4 * Support for the CompuLab CM-X300 modules
5 *
6 * Copyright (C) 2008,2009 CompuLab Ltd.
7 *
8 * Mike Rapoport <mike@compulab.co.il>
9 * Igor Grinberg <grinberg@compulab.co.il>
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 #define pr_fmt(fmt) "%s: " fmt, __func__
16
17 #include <linux/module.h>
18 #include <linux/kernel.h>
19 #include <linux/interrupt.h>
20 #include <linux/init.h>
21 #include <linux/delay.h>
22 #include <linux/platform_device.h>
23 #include <linux/clk.h>
24
25 #include <linux/gpio.h>
26 #include <linux/dm9000.h>
27 #include <linux/leds.h>
28 #include <linux/rtc-v3020.h>
29 #include <linux/pwm_backlight.h>
30
31 #include <linux/i2c.h>
32 #include <linux/i2c/pca953x.h>
33 #include <linux/i2c/pxa-i2c.h>
34
35 #include <linux/mfd/da903x.h>
36 #include <linux/regulator/machine.h>
37 #include <linux/power_supply.h>
38 #include <linux/apm-emulation.h>
39
40 #include <linux/spi/spi.h>
41 #include <linux/spi/spi_gpio.h>
42 #include <linux/spi/tdo24m.h>
43
44 #include <asm/mach-types.h>
45 #include <asm/mach/arch.h>
46 #include <asm/setup.h>
47
48 #include <mach/pxa300.h>
49 #include <mach/pxa27x-udc.h>
50 #include <mach/pxafb.h>
51 #include <mach/mmc.h>
52 #include <mach/ohci.h>
53 #include <plat/pxa3xx_nand.h>
54 #include <mach/audio.h>
55 #include <mach/pxa3xx-u2d.h>
56
57 #include <asm/mach/map.h>
58
59 #include "generic.h"
60 #include "devices.h"
61
62 #define CM_X300_ETH_PHYS 0x08000010
63
64 #define GPIO82_MMC_IRQ (82)
65 #define GPIO85_MMC_WP (85)
66
67 #define CM_X300_MMC_IRQ PXA_GPIO_TO_IRQ(GPIO82_MMC_IRQ)
68
69 #define GPIO95_RTC_CS (95)
70 #define GPIO96_RTC_WR (96)
71 #define GPIO97_RTC_RD (97)
72 #define GPIO98_RTC_IO (98)
73
74 #define GPIO_ULPI_PHY_RST (127)
75
76 static mfp_cfg_t cm_x3xx_mfp_cfg[] __initdata = {
77 /* LCD */
78 GPIO54_LCD_LDD_0,
79 GPIO55_LCD_LDD_1,
80 GPIO56_LCD_LDD_2,
81 GPIO57_LCD_LDD_3,
82 GPIO58_LCD_LDD_4,
83 GPIO59_LCD_LDD_5,
84 GPIO60_LCD_LDD_6,
85 GPIO61_LCD_LDD_7,
86 GPIO62_LCD_LDD_8,
87 GPIO63_LCD_LDD_9,
88 GPIO64_LCD_LDD_10,
89 GPIO65_LCD_LDD_11,
90 GPIO66_LCD_LDD_12,
91 GPIO67_LCD_LDD_13,
92 GPIO68_LCD_LDD_14,
93 GPIO69_LCD_LDD_15,
94 GPIO72_LCD_FCLK,
95 GPIO73_LCD_LCLK,
96 GPIO74_LCD_PCLK,
97 GPIO75_LCD_BIAS,
98
99 /* BTUART */
100 GPIO111_UART2_RTS,
101 GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
102 GPIO113_UART2_TXD,
103 GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
104
105 /* STUART */
106 GPIO109_UART3_TXD,
107 GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
108
109 /* AC97 */
110 GPIO23_AC97_nACRESET,
111 GPIO24_AC97_SYSCLK,
112 GPIO29_AC97_BITCLK,
113 GPIO25_AC97_SDATA_IN_0,
114 GPIO27_AC97_SDATA_OUT,
115 GPIO28_AC97_SYNC,
116
117 /* Keypad */
118 GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
119 GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
120 GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
121 GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
122 GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
123 GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
124 GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
125 GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
126 GPIO121_KP_MKOUT_0,
127 GPIO122_KP_MKOUT_1,
128 GPIO123_KP_MKOUT_2,
129 GPIO124_KP_MKOUT_3,
130 GPIO125_KP_MKOUT_4,
131 GPIO4_2_KP_MKOUT_5,
132
133 /* MMC1 */
134 GPIO3_MMC1_DAT0,
135 GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
136 GPIO5_MMC1_DAT2,
137 GPIO6_MMC1_DAT3,
138 GPIO7_MMC1_CLK,
139 GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
140
141 /* MMC2 */
142 GPIO9_MMC2_DAT0,
143 GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
144 GPIO11_MMC2_DAT2,
145 GPIO12_MMC2_DAT3,
146 GPIO13_MMC2_CLK,
147 GPIO14_MMC2_CMD,
148
149 /* FFUART */
150 GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
151 GPIO31_UART1_TXD,
152 GPIO32_UART1_CTS,
153 GPIO37_UART1_RTS,
154 GPIO33_UART1_DCD,
155 GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
156 GPIO35_UART1_RI,
157 GPIO36_UART1_DTR,
158
159 /* GPIOs */
160 GPIO82_GPIO | MFP_PULL_HIGH, /* MMC CD */
161 GPIO85_GPIO, /* MMC WP */
162 GPIO99_GPIO, /* Ethernet IRQ */
163
164 /* RTC GPIOs */
165 GPIO95_GPIO | MFP_LPM_DRIVE_HIGH, /* RTC CS */
166 GPIO96_GPIO | MFP_LPM_DRIVE_HIGH, /* RTC WR */
167 GPIO97_GPIO | MFP_LPM_DRIVE_HIGH, /* RTC RD */
168 GPIO98_GPIO, /* RTC IO */
169
170 /* Standard I2C */
171 GPIO21_I2C_SCL,
172 GPIO22_I2C_SDA,
173
174 /* PWM Backlight */
175 GPIO19_PWM2_OUT,
176 };
177
178 static mfp_cfg_t cm_x3xx_rev_lt130_mfp_cfg[] __initdata = {
179 /* GPIOs */
180 GPIO79_GPIO, /* LED */
181 GPIO77_GPIO, /* WiFi reset */
182 GPIO78_GPIO, /* BT reset */
183 };
184
185 static mfp_cfg_t cm_x3xx_rev_ge130_mfp_cfg[] __initdata = {
186 /* GPIOs */
187 GPIO76_GPIO, /* LED */
188 GPIO71_GPIO, /* WiFi reset */
189 GPIO70_GPIO, /* BT reset */
190 };
191
192 static mfp_cfg_t cm_x310_mfp_cfg[] __initdata = {
193 /* USB PORT 2 */
194 ULPI_STP,
195 ULPI_NXT,
196 ULPI_DIR,
197 GPIO30_ULPI_DATA_OUT_0,
198 GPIO31_ULPI_DATA_OUT_1,
199 GPIO32_ULPI_DATA_OUT_2,
200 GPIO33_ULPI_DATA_OUT_3,
201 GPIO34_ULPI_DATA_OUT_4,
202 GPIO35_ULPI_DATA_OUT_5,
203 GPIO36_ULPI_DATA_OUT_6,
204 GPIO37_ULPI_DATA_OUT_7,
205 GPIO38_ULPI_CLK,
206 /* external PHY reset pin */
207 GPIO127_GPIO,
208
209 /* USB PORT 3 */
210 GPIO77_USB_P3_1,
211 GPIO78_USB_P3_2,
212 GPIO79_USB_P3_3,
213 GPIO80_USB_P3_4,
214 GPIO81_USB_P3_5,
215 GPIO82_USB_P3_6,
216 GPIO0_2_USBH_PEN,
217 };
218
219 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
220 static struct resource dm9000_resources[] = {
221 [0] = {
222 .start = CM_X300_ETH_PHYS,
223 .end = CM_X300_ETH_PHYS + 0x3,
224 .flags = IORESOURCE_MEM,
225 },
226 [1] = {
227 .start = CM_X300_ETH_PHYS + 0x4,
228 .end = CM_X300_ETH_PHYS + 0x4 + 500,
229 .flags = IORESOURCE_MEM,
230 },
231 [2] = {
232 .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO99)),
233 .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO99)),
234 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
235 }
236 };
237
238 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
239 .flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
240 };
241
242 static struct platform_device dm9000_device = {
243 .name = "dm9000",
244 .id = 0,
245 .num_resources = ARRAY_SIZE(dm9000_resources),
246 .resource = dm9000_resources,
247 .dev = {
248 .platform_data = &cm_x300_dm9000_platdata,
249 }
250
251 };
252
cm_x300_init_dm9000(void)253 static void __init cm_x300_init_dm9000(void)
254 {
255 platform_device_register(&dm9000_device);
256 }
257 #else
cm_x300_init_dm9000(void)258 static inline void cm_x300_init_dm9000(void) {}
259 #endif
260
261 /* LCD */
262 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
263 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
264 [0] = {
265 .pixclock = 38250,
266 .bpp = 16,
267 .xres = 480,
268 .yres = 640,
269 .hsync_len = 8,
270 .vsync_len = 2,
271 .left_margin = 8,
272 .upper_margin = 2,
273 .right_margin = 24,
274 .lower_margin = 4,
275 .cmap_greyscale = 0,
276 },
277 [1] = {
278 .pixclock = 153800,
279 .bpp = 16,
280 .xres = 240,
281 .yres = 320,
282 .hsync_len = 8,
283 .vsync_len = 2,
284 .left_margin = 8,
285 .upper_margin = 2,
286 .right_margin = 88,
287 .lower_margin = 2,
288 .cmap_greyscale = 0,
289 },
290 };
291
292 static struct pxafb_mach_info cm_x300_lcd = {
293 .modes = cm_x300_lcd_modes,
294 .num_modes = ARRAY_SIZE(cm_x300_lcd_modes),
295 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
296 };
297
cm_x300_init_lcd(void)298 static void __init cm_x300_init_lcd(void)
299 {
300 pxa_set_fb_info(NULL, &cm_x300_lcd);
301 }
302 #else
cm_x300_init_lcd(void)303 static inline void cm_x300_init_lcd(void) {}
304 #endif
305
306 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
307 static struct platform_pwm_backlight_data cm_x300_backlight_data = {
308 .pwm_id = 2,
309 .max_brightness = 100,
310 .dft_brightness = 100,
311 .pwm_period_ns = 10000,
312 };
313
314 static struct platform_device cm_x300_backlight_device = {
315 .name = "pwm-backlight",
316 .dev = {
317 .parent = &pxa27x_device_pwm0.dev,
318 .platform_data = &cm_x300_backlight_data,
319 },
320 };
321
cm_x300_init_bl(void)322 static void cm_x300_init_bl(void)
323 {
324 platform_device_register(&cm_x300_backlight_device);
325 }
326 #else
cm_x300_init_bl(void)327 static inline void cm_x300_init_bl(void) {}
328 #endif
329
330 #if defined(CONFIG_SPI_GPIO) || defined(CONFIG_SPI_GPIO_MODULE)
331 #define GPIO_LCD_BASE (144)
332 #define GPIO_LCD_DIN (GPIO_LCD_BASE + 8) /* aux_gpio3_0 */
333 #define GPIO_LCD_DOUT (GPIO_LCD_BASE + 9) /* aux_gpio3_1 */
334 #define GPIO_LCD_SCL (GPIO_LCD_BASE + 10) /* aux_gpio3_2 */
335 #define GPIO_LCD_CS (GPIO_LCD_BASE + 11) /* aux_gpio3_3 */
336 #define LCD_SPI_BUS_NUM (1)
337
338 static struct spi_gpio_platform_data cm_x300_spi_gpio_pdata = {
339 .sck = GPIO_LCD_SCL,
340 .mosi = GPIO_LCD_DIN,
341 .miso = GPIO_LCD_DOUT,
342 .num_chipselect = 1,
343 };
344
345 static struct platform_device cm_x300_spi_gpio = {
346 .name = "spi_gpio",
347 .id = LCD_SPI_BUS_NUM,
348 .dev = {
349 .platform_data = &cm_x300_spi_gpio_pdata,
350 },
351 };
352
353 static struct tdo24m_platform_data cm_x300_tdo24m_pdata = {
354 .model = TDO35S,
355 };
356
357 static struct spi_board_info cm_x300_spi_devices[] __initdata = {
358 {
359 .modalias = "tdo24m",
360 .max_speed_hz = 1000000,
361 .bus_num = LCD_SPI_BUS_NUM,
362 .chip_select = 0,
363 .controller_data = (void *) GPIO_LCD_CS,
364 .platform_data = &cm_x300_tdo24m_pdata,
365 },
366 };
367
cm_x300_init_spi(void)368 static void __init cm_x300_init_spi(void)
369 {
370 spi_register_board_info(cm_x300_spi_devices,
371 ARRAY_SIZE(cm_x300_spi_devices));
372 platform_device_register(&cm_x300_spi_gpio);
373 }
374 #else
cm_x300_init_spi(void)375 static inline void cm_x300_init_spi(void) {}
376 #endif
377
378 #if defined(CONFIG_SND_PXA2XX_LIB_AC97)
cm_x300_init_ac97(void)379 static void __init cm_x300_init_ac97(void)
380 {
381 pxa_set_ac97_info(NULL);
382 }
383 #else
cm_x300_init_ac97(void)384 static inline void cm_x300_init_ac97(void) {}
385 #endif
386
387 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
388 static struct mtd_partition cm_x300_nand_partitions[] = {
389 [0] = {
390 .name = "OBM",
391 .offset = 0,
392 .size = SZ_256K,
393 .mask_flags = MTD_WRITEABLE, /* force read-only */
394 },
395 [1] = {
396 .name = "U-Boot",
397 .offset = MTDPART_OFS_APPEND,
398 .size = SZ_256K,
399 .mask_flags = MTD_WRITEABLE, /* force read-only */
400 },
401 [2] = {
402 .name = "Environment",
403 .offset = MTDPART_OFS_APPEND,
404 .size = SZ_256K,
405 },
406 [3] = {
407 .name = "reserved",
408 .offset = MTDPART_OFS_APPEND,
409 .size = SZ_256K + SZ_1M,
410 .mask_flags = MTD_WRITEABLE, /* force read-only */
411 },
412 [4] = {
413 .name = "kernel",
414 .offset = MTDPART_OFS_APPEND,
415 .size = SZ_4M,
416 },
417 [5] = {
418 .name = "fs",
419 .offset = MTDPART_OFS_APPEND,
420 .size = MTDPART_SIZ_FULL,
421 },
422 };
423
424 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
425 .enable_arbiter = 1,
426 .keep_config = 1,
427 .num_cs = 1,
428 .parts[0] = cm_x300_nand_partitions,
429 .nr_parts[0] = ARRAY_SIZE(cm_x300_nand_partitions),
430 };
431
cm_x300_init_nand(void)432 static void __init cm_x300_init_nand(void)
433 {
434 pxa3xx_set_nand_info(&cm_x300_nand_info);
435 }
436 #else
cm_x300_init_nand(void)437 static inline void cm_x300_init_nand(void) {}
438 #endif
439
440 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
441 static struct pxamci_platform_data cm_x300_mci_platform_data = {
442 .detect_delay_ms = 200,
443 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
444 .gpio_card_detect = GPIO82_MMC_IRQ,
445 .gpio_card_ro = GPIO85_MMC_WP,
446 .gpio_power = -1,
447 };
448
449 /* The second MMC slot of CM-X300 is hardwired to Libertas card and has
450 no detection/ro pins */
cm_x300_mci2_init(struct device * dev,irq_handler_t cm_x300_detect_int,void * data)451 static int cm_x300_mci2_init(struct device *dev,
452 irq_handler_t cm_x300_detect_int,
453 void *data)
454 {
455 return 0;
456 }
457
cm_x300_mci2_exit(struct device * dev,void * data)458 static void cm_x300_mci2_exit(struct device *dev, void *data)
459 {
460 }
461
462 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
463 .detect_delay_ms = 200,
464 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
465 .init = cm_x300_mci2_init,
466 .exit = cm_x300_mci2_exit,
467 .gpio_card_detect = -1,
468 .gpio_card_ro = -1,
469 .gpio_power = -1,
470 };
471
cm_x300_init_mmc(void)472 static void __init cm_x300_init_mmc(void)
473 {
474 pxa_set_mci_info(&cm_x300_mci_platform_data);
475 pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
476 }
477 #else
cm_x300_init_mmc(void)478 static inline void cm_x300_init_mmc(void) {}
479 #endif
480
481 #if defined(CONFIG_PXA310_ULPI)
482 static struct clk *pout_clk;
483
cm_x300_ulpi_phy_reset(void)484 static int cm_x300_ulpi_phy_reset(void)
485 {
486 int err;
487
488 /* reset the PHY */
489 err = gpio_request_one(GPIO_ULPI_PHY_RST, GPIOF_OUT_INIT_LOW,
490 "ulpi reset");
491 if (err) {
492 pr_err("failed to request ULPI reset GPIO: %d\n", err);
493 return err;
494 }
495
496 msleep(10);
497 gpio_set_value(GPIO_ULPI_PHY_RST, 1);
498 msleep(10);
499
500 gpio_free(GPIO_ULPI_PHY_RST);
501
502 return 0;
503 }
504
cm_x300_u2d_init(struct device * dev)505 static inline int cm_x300_u2d_init(struct device *dev)
506 {
507 int err = 0;
508
509 if (cpu_is_pxa310()) {
510 /* CLK_POUT is connected to the ULPI PHY */
511 pout_clk = clk_get(NULL, "CLK_POUT");
512 if (IS_ERR(pout_clk)) {
513 err = PTR_ERR(pout_clk);
514 pr_err("failed to get CLK_POUT: %d\n", err);
515 return err;
516 }
517 clk_enable(pout_clk);
518
519 err = cm_x300_ulpi_phy_reset();
520 if (err) {
521 clk_disable(pout_clk);
522 clk_put(pout_clk);
523 }
524 }
525
526 return err;
527 }
528
cm_x300_u2d_exit(struct device * dev)529 static void cm_x300_u2d_exit(struct device *dev)
530 {
531 if (cpu_is_pxa310()) {
532 clk_disable(pout_clk);
533 clk_put(pout_clk);
534 }
535 }
536
537 static struct pxa3xx_u2d_platform_data cm_x300_u2d_platform_data = {
538 .ulpi_mode = ULPI_SER_6PIN,
539 .init = cm_x300_u2d_init,
540 .exit = cm_x300_u2d_exit,
541 };
542
cm_x300_init_u2d(void)543 static void cm_x300_init_u2d(void)
544 {
545 pxa3xx_set_u2d_info(&cm_x300_u2d_platform_data);
546 }
547 #else
cm_x300_init_u2d(void)548 static inline void cm_x300_init_u2d(void) {}
549 #endif
550
551 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
cm_x300_ohci_init(struct device * dev)552 static int cm_x300_ohci_init(struct device *dev)
553 {
554 if (cpu_is_pxa300())
555 UP2OCR = UP2OCR_HXS
556 | UP2OCR_HXOE | UP2OCR_DMPDE | UP2OCR_DPPDE;
557
558 return 0;
559 }
560
561 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
562 .port_mode = PMM_PERPORT_MODE,
563 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW,
564 .init = cm_x300_ohci_init,
565 };
566
cm_x300_init_ohci(void)567 static void __init cm_x300_init_ohci(void)
568 {
569 pxa_set_ohci_info(&cm_x300_ohci_platform_data);
570 }
571 #else
cm_x300_init_ohci(void)572 static inline void cm_x300_init_ohci(void) {}
573 #endif
574
575 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
576 static struct gpio_led cm_x300_leds[] = {
577 [0] = {
578 .name = "cm-x300:green",
579 .default_trigger = "heartbeat",
580 .active_low = 1,
581 },
582 };
583
584 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
585 .num_leds = ARRAY_SIZE(cm_x300_leds),
586 .leds = cm_x300_leds,
587 };
588
589 static struct platform_device cm_x300_led_device = {
590 .name = "leds-gpio",
591 .id = -1,
592 .dev = {
593 .platform_data = &cm_x300_gpio_led_pdata,
594 },
595 };
596
cm_x300_init_leds(void)597 static void __init cm_x300_init_leds(void)
598 {
599 if (system_rev < 130)
600 cm_x300_leds[0].gpio = 79;
601 else
602 cm_x300_leds[0].gpio = 76;
603
604 platform_device_register(&cm_x300_led_device);
605 }
606 #else
cm_x300_init_leds(void)607 static inline void cm_x300_init_leds(void) {}
608 #endif
609
610 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
611 /* PCA9555 */
612 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
613 .gpio_base = 128,
614 };
615
616 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
617 .gpio_base = 144,
618 };
619
620 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
621 [0] = {
622 I2C_BOARD_INFO("pca9555", 0x24),
623 .platform_data = &cm_x300_gpio_ext_pdata_0,
624 },
625 [1] = {
626 I2C_BOARD_INFO("pca9555", 0x25),
627 .platform_data = &cm_x300_gpio_ext_pdata_1,
628 },
629 };
630
cm_x300_init_i2c(void)631 static void __init cm_x300_init_i2c(void)
632 {
633 pxa_set_i2c_info(NULL);
634 i2c_register_board_info(0, cm_x300_gpio_ext_info,
635 ARRAY_SIZE(cm_x300_gpio_ext_info));
636 }
637 #else
cm_x300_init_i2c(void)638 static inline void cm_x300_init_i2c(void) {}
639 #endif
640
641 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
642 struct v3020_platform_data cm_x300_v3020_pdata = {
643 .use_gpio = 1,
644 .gpio_cs = GPIO95_RTC_CS,
645 .gpio_wr = GPIO96_RTC_WR,
646 .gpio_rd = GPIO97_RTC_RD,
647 .gpio_io = GPIO98_RTC_IO,
648 };
649
650 static struct platform_device cm_x300_rtc_device = {
651 .name = "v3020",
652 .id = -1,
653 .dev = {
654 .platform_data = &cm_x300_v3020_pdata,
655 }
656 };
657
cm_x300_init_rtc(void)658 static void __init cm_x300_init_rtc(void)
659 {
660 platform_device_register(&cm_x300_rtc_device);
661 }
662 #else
cm_x300_init_rtc(void)663 static inline void cm_x300_init_rtc(void) {}
664 #endif
665
666 /* Battery */
667 struct power_supply_info cm_x300_psy_info = {
668 .name = "battery",
669 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
670 .voltage_max_design = 4200000,
671 .voltage_min_design = 3000000,
672 .use_for_apm = 1,
673 };
674
cm_x300_battery_low(void)675 static void cm_x300_battery_low(void)
676 {
677 #if defined(CONFIG_APM_EMULATION)
678 apm_queue_event(APM_LOW_BATTERY);
679 #endif
680 }
681
cm_x300_battery_critical(void)682 static void cm_x300_battery_critical(void)
683 {
684 #if defined(CONFIG_APM_EMULATION)
685 apm_queue_event(APM_CRITICAL_SUSPEND);
686 #endif
687 }
688
689 struct da9030_battery_info cm_x300_battery_info = {
690 .battery_info = &cm_x300_psy_info,
691
692 .charge_milliamp = 1000,
693 .charge_millivolt = 4200,
694
695 .vbat_low = 3600,
696 .vbat_crit = 3400,
697 .vbat_charge_start = 4100,
698 .vbat_charge_stop = 4200,
699 .vbat_charge_restart = 4000,
700
701 .vcharge_min = 3200,
702 .vcharge_max = 5500,
703
704 .tbat_low = 197,
705 .tbat_high = 78,
706 .tbat_restart = 100,
707
708 .batmon_interval = 0,
709
710 .battery_low = cm_x300_battery_low,
711 .battery_critical = cm_x300_battery_critical,
712 };
713
714 static struct regulator_consumer_supply buck2_consumers[] = {
715 {
716 .dev = NULL,
717 .supply = "vcc_core",
718 },
719 };
720
721 static struct regulator_init_data buck2_data = {
722 .constraints = {
723 .min_uV = 1375000,
724 .max_uV = 1375000,
725 .state_mem = {
726 .enabled = 0,
727 },
728 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
729 .apply_uV = 1,
730 },
731 .num_consumer_supplies = ARRAY_SIZE(buck2_consumers),
732 .consumer_supplies = buck2_consumers,
733 };
734
735 /* DA9030 */
736 struct da903x_subdev_info cm_x300_da9030_subdevs[] = {
737 {
738 .name = "da903x-battery",
739 .id = DA9030_ID_BAT,
740 .platform_data = &cm_x300_battery_info,
741 },
742 {
743 .name = "da903x-regulator",
744 .id = DA9030_ID_BUCK2,
745 .platform_data = &buck2_data,
746 },
747 };
748
749 static struct da903x_platform_data cm_x300_da9030_info = {
750 .num_subdevs = ARRAY_SIZE(cm_x300_da9030_subdevs),
751 .subdevs = cm_x300_da9030_subdevs,
752 };
753
754 static struct i2c_board_info cm_x300_pmic_info = {
755 I2C_BOARD_INFO("da9030", 0x49),
756 .irq = IRQ_WAKEUP0,
757 .platform_data = &cm_x300_da9030_info,
758 };
759
760 static struct i2c_pxa_platform_data cm_x300_pwr_i2c_info = {
761 .use_pio = 1,
762 };
763
cm_x300_init_da9030(void)764 static void __init cm_x300_init_da9030(void)
765 {
766 pxa3xx_set_i2c_power_info(&cm_x300_pwr_i2c_info);
767 i2c_register_board_info(1, &cm_x300_pmic_info, 1);
768 irq_set_irq_wake(IRQ_WAKEUP0, 1);
769 }
770
771 /* wi2wi gpio setting for system_rev >= 130 */
772 static struct gpio cm_x300_wi2wi_gpios[] __initdata = {
773 { 71, GPIOF_OUT_INIT_HIGH, "wlan en" },
774 { 70, GPIOF_OUT_INIT_HIGH, "bt reset" },
775 };
776
cm_x300_init_wi2wi(void)777 static void __init cm_x300_init_wi2wi(void)
778 {
779 int err;
780
781 if (system_rev < 130) {
782 cm_x300_wi2wi_gpios[0].gpio = 77; /* wlan en */
783 cm_x300_wi2wi_gpios[1].gpio = 78; /* bt reset */
784 }
785
786 /* Libertas and CSR reset */
787 err = gpio_request_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
788 if (err) {
789 pr_err("failed to request wifi/bt gpios: %d\n", err);
790 return;
791 }
792
793 udelay(10);
794 gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 0);
795 udelay(10);
796 gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 1);
797
798 gpio_free_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
799 }
800
801 /* MFP */
cm_x300_init_mfp(void)802 static void __init cm_x300_init_mfp(void)
803 {
804 /* board-processor specific GPIO initialization */
805 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_mfp_cfg));
806
807 if (system_rev < 130)
808 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_lt130_mfp_cfg));
809 else
810 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_ge130_mfp_cfg));
811
812 if (cpu_is_pxa310())
813 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x310_mfp_cfg));
814 }
815
cm_x300_init(void)816 static void __init cm_x300_init(void)
817 {
818 cm_x300_init_mfp();
819
820 pxa_set_btuart_info(NULL);
821 pxa_set_stuart_info(NULL);
822 if (cpu_is_pxa300())
823 pxa_set_ffuart_info(NULL);
824
825 cm_x300_init_da9030();
826 cm_x300_init_dm9000();
827 cm_x300_init_lcd();
828 cm_x300_init_u2d();
829 cm_x300_init_ohci();
830 cm_x300_init_mmc();
831 cm_x300_init_nand();
832 cm_x300_init_leds();
833 cm_x300_init_i2c();
834 cm_x300_init_spi();
835 cm_x300_init_rtc();
836 cm_x300_init_ac97();
837 cm_x300_init_wi2wi();
838 cm_x300_init_bl();
839 }
840
cm_x300_fixup(struct tag * tags,char ** cmdline,struct meminfo * mi)841 static void __init cm_x300_fixup(struct tag *tags, char **cmdline,
842 struct meminfo *mi)
843 {
844 /* Make sure that mi->bank[0].start = PHYS_ADDR */
845 for (; tags->hdr.size; tags = tag_next(tags))
846 if (tags->hdr.tag == ATAG_MEM &&
847 tags->u.mem.start == 0x80000000) {
848 tags->u.mem.start = 0xa0000000;
849 break;
850 }
851 }
852
853 MACHINE_START(CM_X300, "CM-X300 module")
854 .atag_offset = 0x100,
855 .map_io = pxa3xx_map_io,
856 .init_irq = pxa3xx_init_irq,
857 .handle_irq = pxa3xx_handle_irq,
858 .timer = &pxa_timer,
859 .init_machine = cm_x300_init,
860 .fixup = cm_x300_fixup,
861 .restart = pxa_restart,
862 MACHINE_END
863