1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * linux/arch/arm/mach-pxa/cm-x300.c
4  *
5  * Support for the CompuLab CM-X300 modules
6  *
7  * Copyright (C) 2008,2009 CompuLab Ltd.
8  *
9  * Mike Rapoport <mike@compulab.co.il>
10  * Igor Grinberg <grinberg@compulab.co.il>
11  */
12 #define pr_fmt(fmt) "%s: " fmt, __func__
13 
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/interrupt.h>
17 #include <linux/init.h>
18 #include <linux/delay.h>
19 #include <linux/platform_device.h>
20 #include <linux/clk.h>
21 
22 #include <linux/gpio.h>
23 #include <linux/gpio/machine.h>
24 #include <linux/dm9000.h>
25 #include <linux/leds.h>
26 #include <linux/platform_data/rtc-v3020.h>
27 #include <linux/pwm.h>
28 #include <linux/pwm_backlight.h>
29 
30 #include <linux/i2c.h>
31 #include <linux/platform_data/pca953x.h>
32 #include <linux/platform_data/i2c-pxa.h>
33 
34 #include <linux/mfd/da903x.h>
35 #include <linux/regulator/machine.h>
36 #include <linux/power_supply.h>
37 #include <linux/apm-emulation.h>
38 
39 #include <linux/spi/spi.h>
40 #include <linux/spi/spi_gpio.h>
41 #include <linux/spi/tdo24m.h>
42 
43 #include <asm/mach-types.h>
44 #include <asm/mach/arch.h>
45 #include <asm/setup.h>
46 #include <asm/system_info.h>
47 
48 #include "pxa300.h"
49 #include "pxa27x-udc.h"
50 #include <linux/platform_data/video-pxafb.h>
51 #include <linux/platform_data/mmc-pxamci.h>
52 #include <linux/platform_data/usb-ohci-pxa27x.h>
53 #include <linux/platform_data/mtd-nand-pxa3xx.h>
54 #include <mach/audio.h>
55 #include <linux/platform_data/usb-pxa3xx-ulpi.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 pwm_lookup cm_x300_pwm_lookup[] = {
308 	PWM_LOOKUP("pxa27x-pwm.0", 1, "pwm-backlight.0", NULL, 10000,
309 		   PWM_POLARITY_NORMAL),
310 };
311 
312 static struct platform_pwm_backlight_data cm_x300_backlight_data = {
313 	.max_brightness	= 100,
314 	.dft_brightness	= 100,
315 	.enable_gpio	= -1,
316 };
317 
318 static struct platform_device cm_x300_backlight_device = {
319 	.name		= "pwm-backlight",
320 	.dev		= {
321 		.parent = &pxa27x_device_pwm0.dev,
322 		.platform_data	= &cm_x300_backlight_data,
323 	},
324 };
325 
cm_x300_init_bl(void)326 static void cm_x300_init_bl(void)
327 {
328 	pwm_add_table(cm_x300_pwm_lookup, ARRAY_SIZE(cm_x300_pwm_lookup));
329 	platform_device_register(&cm_x300_backlight_device);
330 }
331 #else
cm_x300_init_bl(void)332 static inline void cm_x300_init_bl(void) {}
333 #endif
334 
335 #if defined(CONFIG_SPI_GPIO) || defined(CONFIG_SPI_GPIO_MODULE)
336 #define GPIO_LCD_BASE	(144)
337 #define GPIO_LCD_DIN	(GPIO_LCD_BASE + 8)	/* aux_gpio3_0 */
338 #define GPIO_LCD_DOUT	(GPIO_LCD_BASE + 9)	/* aux_gpio3_1 */
339 #define GPIO_LCD_SCL	(GPIO_LCD_BASE + 10)	/* aux_gpio3_2 */
340 #define GPIO_LCD_CS	(GPIO_LCD_BASE + 11)	/* aux_gpio3_3 */
341 #define LCD_SPI_BUS_NUM	(1)
342 
343 static struct spi_gpio_platform_data cm_x300_spi_gpio_pdata = {
344 	.num_chipselect	= 1,
345 };
346 
347 static struct platform_device cm_x300_spi_gpio = {
348 	.name		= "spi_gpio",
349 	.id		= LCD_SPI_BUS_NUM,
350 	.dev		= {
351 		.platform_data	= &cm_x300_spi_gpio_pdata,
352 	},
353 };
354 
355 static struct gpiod_lookup_table cm_x300_spi_gpiod_table = {
356 	.dev_id         = "spi_gpio",
357 	.table          = {
358 		GPIO_LOOKUP("gpio-pxa", GPIO_LCD_SCL,
359 			    "sck", GPIO_ACTIVE_HIGH),
360 		GPIO_LOOKUP("gpio-pxa", GPIO_LCD_DIN,
361 			    "mosi", GPIO_ACTIVE_HIGH),
362 		GPIO_LOOKUP("gpio-pxa", GPIO_LCD_DOUT,
363 			    "miso", GPIO_ACTIVE_HIGH),
364 		GPIO_LOOKUP("gpio-pxa", GPIO_LCD_CS,
365 			    "cs", GPIO_ACTIVE_HIGH),
366 		{ },
367 	},
368 };
369 
370 static struct tdo24m_platform_data cm_x300_tdo24m_pdata = {
371 	.model = TDO35S,
372 };
373 
374 static struct spi_board_info cm_x300_spi_devices[] __initdata = {
375 	{
376 		.modalias		= "tdo24m",
377 		.max_speed_hz		= 1000000,
378 		.bus_num		= LCD_SPI_BUS_NUM,
379 		.chip_select		= 0,
380 		.platform_data		= &cm_x300_tdo24m_pdata,
381 	},
382 };
383 
cm_x300_init_spi(void)384 static void __init cm_x300_init_spi(void)
385 {
386 	spi_register_board_info(cm_x300_spi_devices,
387 				ARRAY_SIZE(cm_x300_spi_devices));
388 	gpiod_add_lookup_table(&cm_x300_spi_gpiod_table);
389 	platform_device_register(&cm_x300_spi_gpio);
390 }
391 #else
cm_x300_init_spi(void)392 static inline void cm_x300_init_spi(void) {}
393 #endif
394 
395 #if defined(CONFIG_SND_PXA2XX_LIB_AC97)
cm_x300_init_ac97(void)396 static void __init cm_x300_init_ac97(void)
397 {
398 	pxa_set_ac97_info(NULL);
399 }
400 #else
cm_x300_init_ac97(void)401 static inline void cm_x300_init_ac97(void) {}
402 #endif
403 
404 #if IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
405 static struct mtd_partition cm_x300_nand_partitions[] = {
406 	[0] = {
407 		.name        = "OBM",
408 		.offset      = 0,
409 		.size        = SZ_256K,
410 		.mask_flags  = MTD_WRITEABLE, /* force read-only */
411 	},
412 	[1] = {
413 		.name        = "U-Boot",
414 		.offset      = MTDPART_OFS_APPEND,
415 		.size        = SZ_256K,
416 		.mask_flags  = MTD_WRITEABLE, /* force read-only */
417 	},
418 	[2] = {
419 		.name        = "Environment",
420 		.offset      = MTDPART_OFS_APPEND,
421 		.size        = SZ_256K,
422 	},
423 	[3] = {
424 		.name        = "reserved",
425 		.offset      = MTDPART_OFS_APPEND,
426 		.size        = SZ_256K + SZ_1M,
427 		.mask_flags  = MTD_WRITEABLE, /* force read-only */
428 	},
429 	[4] = {
430 		.name        = "kernel",
431 		.offset      = MTDPART_OFS_APPEND,
432 		.size        = SZ_4M,
433 	},
434 	[5] = {
435 		.name        = "fs",
436 		.offset      = MTDPART_OFS_APPEND,
437 		.size        = MTDPART_SIZ_FULL,
438 	},
439 };
440 
441 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
442 	.keep_config	= 1,
443 	.parts		= cm_x300_nand_partitions,
444 	.nr_parts	= ARRAY_SIZE(cm_x300_nand_partitions),
445 };
446 
cm_x300_init_nand(void)447 static void __init cm_x300_init_nand(void)
448 {
449 	pxa3xx_set_nand_info(&cm_x300_nand_info);
450 }
451 #else
cm_x300_init_nand(void)452 static inline void cm_x300_init_nand(void) {}
453 #endif
454 
455 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
456 static struct pxamci_platform_data cm_x300_mci_platform_data = {
457 	.detect_delay_ms	= 200,
458 	.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
459 };
460 
461 static struct gpiod_lookup_table cm_x300_mci_gpio_table = {
462 	.dev_id = "pxa2xx-mci.0",
463 	.table = {
464 		/* Card detect on GPIO 82 */
465 		GPIO_LOOKUP("gpio-pxa", GPIO82_MMC_IRQ, "cd", GPIO_ACTIVE_LOW),
466 		/* Write protect on GPIO 85 */
467 		GPIO_LOOKUP("gpio-pxa", GPIO85_MMC_WP, "wp", GPIO_ACTIVE_LOW),
468 		{ },
469 	},
470 };
471 
472 /* The second MMC slot of CM-X300 is hardwired to Libertas card and has
473    no detection/ro pins */
cm_x300_mci2_init(struct device * dev,irq_handler_t cm_x300_detect_int,void * data)474 static int cm_x300_mci2_init(struct device *dev,
475 			     irq_handler_t cm_x300_detect_int,
476 	void *data)
477 {
478 	return 0;
479 }
480 
cm_x300_mci2_exit(struct device * dev,void * data)481 static void cm_x300_mci2_exit(struct device *dev, void *data)
482 {
483 }
484 
485 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
486 	.detect_delay_ms	= 200,
487 	.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
488 	.init 			= cm_x300_mci2_init,
489 	.exit			= cm_x300_mci2_exit,
490 };
491 
cm_x300_init_mmc(void)492 static void __init cm_x300_init_mmc(void)
493 {
494 	gpiod_add_lookup_table(&cm_x300_mci_gpio_table);
495 	pxa_set_mci_info(&cm_x300_mci_platform_data);
496 	pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
497 }
498 #else
cm_x300_init_mmc(void)499 static inline void cm_x300_init_mmc(void) {}
500 #endif
501 
502 #if defined(CONFIG_PXA310_ULPI)
503 static struct clk *pout_clk;
504 
cm_x300_ulpi_phy_reset(void)505 static int cm_x300_ulpi_phy_reset(void)
506 {
507 	int err;
508 
509 	/* reset the PHY */
510 	err = gpio_request_one(GPIO_ULPI_PHY_RST, GPIOF_OUT_INIT_LOW,
511 			       "ulpi reset");
512 	if (err) {
513 		pr_err("failed to request ULPI reset GPIO: %d\n", err);
514 		return err;
515 	}
516 
517 	msleep(10);
518 	gpio_set_value(GPIO_ULPI_PHY_RST, 1);
519 	msleep(10);
520 
521 	gpio_free(GPIO_ULPI_PHY_RST);
522 
523 	return 0;
524 }
525 
cm_x300_u2d_init(struct device * dev)526 static int cm_x300_u2d_init(struct device *dev)
527 {
528 	int err = 0;
529 
530 	if (cpu_is_pxa310()) {
531 		/* CLK_POUT is connected to the ULPI PHY */
532 		pout_clk = clk_get(NULL, "CLK_POUT");
533 		if (IS_ERR(pout_clk)) {
534 			err = PTR_ERR(pout_clk);
535 			pr_err("failed to get CLK_POUT: %d\n", err);
536 			return err;
537 		}
538 		clk_prepare_enable(pout_clk);
539 
540 		err = cm_x300_ulpi_phy_reset();
541 		if (err) {
542 			clk_disable(pout_clk);
543 			clk_put(pout_clk);
544 		}
545 	}
546 
547 	return err;
548 }
549 
cm_x300_u2d_exit(struct device * dev)550 static void cm_x300_u2d_exit(struct device *dev)
551 {
552 	if (cpu_is_pxa310()) {
553 		clk_disable_unprepare(pout_clk);
554 		clk_put(pout_clk);
555 	}
556 }
557 
558 static struct pxa3xx_u2d_platform_data cm_x300_u2d_platform_data = {
559 	.ulpi_mode	= ULPI_SER_6PIN,
560 	.init		= cm_x300_u2d_init,
561 	.exit		= cm_x300_u2d_exit,
562 };
563 
cm_x300_init_u2d(void)564 static void __init cm_x300_init_u2d(void)
565 {
566 	pxa3xx_set_u2d_info(&cm_x300_u2d_platform_data);
567 }
568 #else
cm_x300_init_u2d(void)569 static inline void cm_x300_init_u2d(void) {}
570 #endif
571 
572 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
cm_x300_ohci_init(struct device * dev)573 static int cm_x300_ohci_init(struct device *dev)
574 {
575 	if (cpu_is_pxa300())
576 		UP2OCR = UP2OCR_HXS
577 			| UP2OCR_HXOE | UP2OCR_DMPDE | UP2OCR_DPPDE;
578 
579 	return 0;
580 }
581 
582 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
583 	.port_mode	= PMM_PERPORT_MODE,
584 	.flags		= ENABLE_PORT_ALL | POWER_CONTROL_LOW,
585 	.init		= cm_x300_ohci_init,
586 };
587 
cm_x300_init_ohci(void)588 static void __init cm_x300_init_ohci(void)
589 {
590 	pxa_set_ohci_info(&cm_x300_ohci_platform_data);
591 }
592 #else
cm_x300_init_ohci(void)593 static inline void cm_x300_init_ohci(void) {}
594 #endif
595 
596 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
597 static struct gpio_led cm_x300_leds[] = {
598 	[0] = {
599 		.name = "cm-x300:green",
600 		.default_trigger = "heartbeat",
601 		.active_low = 1,
602 	},
603 };
604 
605 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
606 	.num_leds = ARRAY_SIZE(cm_x300_leds),
607 	.leds = cm_x300_leds,
608 };
609 
610 static struct platform_device cm_x300_led_device = {
611 	.name		= "leds-gpio",
612 	.id		= -1,
613 	.dev		= {
614 		.platform_data = &cm_x300_gpio_led_pdata,
615 	},
616 };
617 
cm_x300_init_leds(void)618 static void __init cm_x300_init_leds(void)
619 {
620 	if (system_rev < 130)
621 		cm_x300_leds[0].gpio = 79;
622 	else
623 		cm_x300_leds[0].gpio = 76;
624 
625 	platform_device_register(&cm_x300_led_device);
626 }
627 #else
cm_x300_init_leds(void)628 static inline void cm_x300_init_leds(void) {}
629 #endif
630 
631 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
632 /* PCA9555 */
633 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
634 	.gpio_base = 128,
635 };
636 
637 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
638 	.gpio_base = 144,
639 };
640 
641 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
642 	[0] = {
643 		I2C_BOARD_INFO("pca9555", 0x24),
644 		.platform_data = &cm_x300_gpio_ext_pdata_0,
645 	},
646 	[1] = {
647 		I2C_BOARD_INFO("pca9555", 0x25),
648 		.platform_data = &cm_x300_gpio_ext_pdata_1,
649 	},
650 };
651 
cm_x300_init_i2c(void)652 static void __init cm_x300_init_i2c(void)
653 {
654 	pxa_set_i2c_info(NULL);
655 	i2c_register_board_info(0, cm_x300_gpio_ext_info,
656 				ARRAY_SIZE(cm_x300_gpio_ext_info));
657 }
658 #else
cm_x300_init_i2c(void)659 static inline void cm_x300_init_i2c(void) {}
660 #endif
661 
662 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
663 struct v3020_platform_data cm_x300_v3020_pdata = {
664 	.use_gpio	= 1,
665 	.gpio_cs	= GPIO95_RTC_CS,
666 	.gpio_wr	= GPIO96_RTC_WR,
667 	.gpio_rd	= GPIO97_RTC_RD,
668 	.gpio_io	= GPIO98_RTC_IO,
669 };
670 
671 static struct platform_device cm_x300_rtc_device = {
672 	.name		= "v3020",
673 	.id		= -1,
674 	.dev		= {
675 		.platform_data = &cm_x300_v3020_pdata,
676 	}
677 };
678 
cm_x300_init_rtc(void)679 static void __init cm_x300_init_rtc(void)
680 {
681 	platform_device_register(&cm_x300_rtc_device);
682 }
683 #else
cm_x300_init_rtc(void)684 static inline void cm_x300_init_rtc(void) {}
685 #endif
686 
687 /* Battery */
688 struct power_supply_info cm_x300_psy_info = {
689 	.name = "battery",
690 	.technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
691 	.voltage_max_design = 4200000,
692 	.voltage_min_design = 3000000,
693 	.use_for_apm = 1,
694 };
695 
cm_x300_battery_low(void)696 static void cm_x300_battery_low(void)
697 {
698 #if defined(CONFIG_APM_EMULATION)
699 	apm_queue_event(APM_LOW_BATTERY);
700 #endif
701 }
702 
cm_x300_battery_critical(void)703 static void cm_x300_battery_critical(void)
704 {
705 #if defined(CONFIG_APM_EMULATION)
706 	apm_queue_event(APM_CRITICAL_SUSPEND);
707 #endif
708 }
709 
710 struct da9030_battery_info cm_x300_battery_info = {
711 	.battery_info = &cm_x300_psy_info,
712 
713 	.charge_milliamp = 1000,
714 	.charge_millivolt = 4200,
715 
716 	.vbat_low = 3600,
717 	.vbat_crit = 3400,
718 	.vbat_charge_start = 4100,
719 	.vbat_charge_stop = 4200,
720 	.vbat_charge_restart = 4000,
721 
722 	.vcharge_min = 3200,
723 	.vcharge_max = 5500,
724 
725 	.tbat_low = 197,
726 	.tbat_high = 78,
727 	.tbat_restart = 100,
728 
729 	.batmon_interval = 0,
730 
731 	.battery_low = cm_x300_battery_low,
732 	.battery_critical = cm_x300_battery_critical,
733 };
734 
735 static struct regulator_consumer_supply buck2_consumers[] = {
736 	REGULATOR_SUPPLY("vcc_core", NULL),
737 };
738 
739 static struct regulator_init_data buck2_data = {
740 	.constraints = {
741 		.min_uV = 1375000,
742 		.max_uV = 1375000,
743 		.state_mem = {
744 			.enabled = 0,
745 		},
746 		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
747 		.apply_uV = 1,
748 	},
749 	.num_consumer_supplies = ARRAY_SIZE(buck2_consumers),
750 	.consumer_supplies = buck2_consumers,
751 };
752 
753 /* DA9030 */
754 struct da903x_subdev_info cm_x300_da9030_subdevs[] = {
755 	{
756 		.name = "da903x-battery",
757 		.id = DA9030_ID_BAT,
758 		.platform_data = &cm_x300_battery_info,
759 	},
760 	{
761 		.name = "da903x-regulator",
762 		.id = DA9030_ID_BUCK2,
763 		.platform_data = &buck2_data,
764 	},
765 };
766 
767 static struct da903x_platform_data cm_x300_da9030_info = {
768 	.num_subdevs = ARRAY_SIZE(cm_x300_da9030_subdevs),
769 	.subdevs = cm_x300_da9030_subdevs,
770 };
771 
772 static struct i2c_board_info cm_x300_pmic_info = {
773 	I2C_BOARD_INFO("da9030", 0x49),
774 	.irq = IRQ_WAKEUP0,
775 	.platform_data = &cm_x300_da9030_info,
776 };
777 
778 static struct i2c_pxa_platform_data cm_x300_pwr_i2c_info = {
779 	.use_pio = 1,
780 };
781 
cm_x300_init_da9030(void)782 static void __init cm_x300_init_da9030(void)
783 {
784 	pxa3xx_set_i2c_power_info(&cm_x300_pwr_i2c_info);
785 	i2c_register_board_info(1, &cm_x300_pmic_info, 1);
786 	irq_set_irq_wake(IRQ_WAKEUP0, 1);
787 }
788 
789 /* wi2wi gpio setting for system_rev >= 130 */
790 static struct gpio cm_x300_wi2wi_gpios[] __initdata = {
791 	{ 71, GPIOF_OUT_INIT_HIGH, "wlan en" },
792 	{ 70, GPIOF_OUT_INIT_HIGH, "bt reset" },
793 };
794 
cm_x300_init_wi2wi(void)795 static void __init cm_x300_init_wi2wi(void)
796 {
797 	int err;
798 
799 	if (system_rev < 130) {
800 		cm_x300_wi2wi_gpios[0].gpio = 77;	/* wlan en */
801 		cm_x300_wi2wi_gpios[1].gpio = 78;	/* bt reset */
802 	}
803 
804 	/* Libertas and CSR reset */
805 	err = gpio_request_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
806 	if (err) {
807 		pr_err("failed to request wifi/bt gpios: %d\n", err);
808 		return;
809 	}
810 
811 	udelay(10);
812 	gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 0);
813 	udelay(10);
814 	gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 1);
815 
816 	gpio_free_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
817 }
818 
819 /* MFP */
cm_x300_init_mfp(void)820 static void __init cm_x300_init_mfp(void)
821 {
822 	/* board-processor specific GPIO initialization */
823 	pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_mfp_cfg));
824 
825 	if (system_rev < 130)
826 		pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_lt130_mfp_cfg));
827 	else
828 		pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_ge130_mfp_cfg));
829 
830 	if (cpu_is_pxa310())
831 		pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x310_mfp_cfg));
832 }
833 
cm_x300_init(void)834 static void __init cm_x300_init(void)
835 {
836 	cm_x300_init_mfp();
837 
838 	pxa_set_btuart_info(NULL);
839 	pxa_set_stuart_info(NULL);
840 	if (cpu_is_pxa300())
841 		pxa_set_ffuart_info(NULL);
842 
843 	cm_x300_init_da9030();
844 	cm_x300_init_dm9000();
845 	cm_x300_init_lcd();
846 	cm_x300_init_u2d();
847 	cm_x300_init_ohci();
848 	cm_x300_init_mmc();
849 	cm_x300_init_nand();
850 	cm_x300_init_leds();
851 	cm_x300_init_i2c();
852 	cm_x300_init_spi();
853 	cm_x300_init_rtc();
854 	cm_x300_init_ac97();
855 	cm_x300_init_wi2wi();
856 	cm_x300_init_bl();
857 
858 	regulator_has_full_constraints();
859 }
860 
cm_x300_fixup(struct tag * tags,char ** cmdline)861 static void __init cm_x300_fixup(struct tag *tags, char **cmdline)
862 {
863 	/* Make sure that mi->bank[0].start = PHYS_ADDR */
864 	for (; tags->hdr.size; tags = tag_next(tags))
865 		if (tags->hdr.tag == ATAG_MEM &&
866 			tags->u.mem.start == 0x80000000) {
867 			tags->u.mem.start = 0xa0000000;
868 			break;
869 		}
870 }
871 
872 MACHINE_START(CM_X300, "CM-X300 module")
873 	.atag_offset	= 0x100,
874 	.map_io		= pxa3xx_map_io,
875 	.nr_irqs	= PXA_NR_IRQS,
876 	.init_irq	= pxa3xx_init_irq,
877 	.handle_irq	= pxa3xx_handle_irq,
878 	.init_time	= pxa_timer_init,
879 	.init_machine	= cm_x300_init,
880 	.fixup		= cm_x300_fixup,
881 	.restart	= pxa_restart,
882 MACHINE_END
883