2 * linux/arch/arm/mach-pxa/cm-x300.c
4 * Support for the CompuLab CM-X300 modules
6 * Copyright (C) 2008,2009 CompuLab Ltd.
8 * Mike Rapoport <mike@compulab.co.il>
9 * Igor Grinberg <grinberg@compulab.co.il>
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.
15 #define pr_fmt(fmt) "%s: " fmt, __func__
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>
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>
31 #include <linux/i2c.h>
32 #include <linux/i2c/pca953x.h>
33 #include <linux/i2c/pxa-i2c.h>
35 #include <linux/mfd/da903x.h>
36 #include <linux/regulator/machine.h>
37 #include <linux/power_supply.h>
38 #include <linux/apm-emulation.h>
40 #include <linux/spi/spi.h>
41 #include <linux/spi/spi_gpio.h>
42 #include <linux/spi/tdo24m.h>
44 #include <asm/mach-types.h>
45 #include <asm/mach/arch.h>
46 #include <asm/setup.h>
47 #include <asm/system_info.h>
49 #include <mach/pxa300.h>
50 #include <mach/pxa27x-udc.h>
51 #include <mach/pxafb.h>
53 #include <mach/ohci.h>
54 #include <plat/pxa3xx_nand.h>
55 #include <mach/audio.h>
56 #include <mach/pxa3xx-u2d.h>
58 #include <asm/mach/map.h>
63 #define CM_X300_ETH_PHYS 0x08000010
65 #define GPIO82_MMC_IRQ (82)
66 #define GPIO85_MMC_WP (85)
68 #define CM_X300_MMC_IRQ PXA_GPIO_TO_IRQ(GPIO82_MMC_IRQ)
70 #define GPIO95_RTC_CS (95)
71 #define GPIO96_RTC_WR (96)
72 #define GPIO97_RTC_RD (97)
73 #define GPIO98_RTC_IO (98)
75 #define GPIO_ULPI_PHY_RST (127)
77 static mfp_cfg_t cm_x3xx_mfp_cfg[] __initdata = {
102 GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
104 GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
108 GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
111 GPIO23_AC97_nACRESET,
114 GPIO25_AC97_SDATA_IN_0,
115 GPIO27_AC97_SDATA_OUT,
119 GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
120 GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
121 GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
122 GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
123 GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
124 GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
125 GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
126 GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
136 GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
140 GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
144 GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
151 GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
156 GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
161 GPIO82_GPIO | MFP_PULL_HIGH, /* MMC CD */
162 GPIO85_GPIO, /* MMC WP */
163 GPIO99_GPIO, /* Ethernet IRQ */
166 GPIO95_GPIO | MFP_LPM_DRIVE_HIGH, /* RTC CS */
167 GPIO96_GPIO | MFP_LPM_DRIVE_HIGH, /* RTC WR */
168 GPIO97_GPIO | MFP_LPM_DRIVE_HIGH, /* RTC RD */
169 GPIO98_GPIO, /* RTC IO */
179 static mfp_cfg_t cm_x3xx_rev_lt130_mfp_cfg[] __initdata = {
181 GPIO79_GPIO, /* LED */
182 GPIO77_GPIO, /* WiFi reset */
183 GPIO78_GPIO, /* BT reset */
186 static mfp_cfg_t cm_x3xx_rev_ge130_mfp_cfg[] __initdata = {
188 GPIO76_GPIO, /* LED */
189 GPIO71_GPIO, /* WiFi reset */
190 GPIO70_GPIO, /* BT reset */
193 static mfp_cfg_t cm_x310_mfp_cfg[] __initdata = {
198 GPIO30_ULPI_DATA_OUT_0,
199 GPIO31_ULPI_DATA_OUT_1,
200 GPIO32_ULPI_DATA_OUT_2,
201 GPIO33_ULPI_DATA_OUT_3,
202 GPIO34_ULPI_DATA_OUT_4,
203 GPIO35_ULPI_DATA_OUT_5,
204 GPIO36_ULPI_DATA_OUT_6,
205 GPIO37_ULPI_DATA_OUT_7,
207 /* external PHY reset pin */
220 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
221 static struct resource dm9000_resources[] = {
223 .start = CM_X300_ETH_PHYS,
224 .end = CM_X300_ETH_PHYS + 0x3,
225 .flags = IORESOURCE_MEM,
228 .start = CM_X300_ETH_PHYS + 0x4,
229 .end = CM_X300_ETH_PHYS + 0x4 + 500,
230 .flags = IORESOURCE_MEM,
233 .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO99)),
234 .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO99)),
235 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
239 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
240 .flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
243 static struct platform_device dm9000_device = {
246 .num_resources = ARRAY_SIZE(dm9000_resources),
247 .resource = dm9000_resources,
249 .platform_data = &cm_x300_dm9000_platdata,
254 static void __init cm_x300_init_dm9000(void)
256 platform_device_register(&dm9000_device);
259 static inline void cm_x300_init_dm9000(void) {}
263 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
264 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
293 static struct pxafb_mach_info cm_x300_lcd = {
294 .modes = cm_x300_lcd_modes,
295 .num_modes = ARRAY_SIZE(cm_x300_lcd_modes),
296 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
299 static void __init cm_x300_init_lcd(void)
301 pxa_set_fb_info(NULL, &cm_x300_lcd);
304 static inline void cm_x300_init_lcd(void) {}
307 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
308 static struct platform_pwm_backlight_data cm_x300_backlight_data = {
310 .max_brightness = 100,
311 .dft_brightness = 100,
312 .pwm_period_ns = 10000,
315 static struct platform_device cm_x300_backlight_device = {
316 .name = "pwm-backlight",
318 .parent = &pxa27x_device_pwm0.dev,
319 .platform_data = &cm_x300_backlight_data,
323 static void cm_x300_init_bl(void)
325 platform_device_register(&cm_x300_backlight_device);
328 static inline void cm_x300_init_bl(void) {}
331 #if defined(CONFIG_SPI_GPIO) || defined(CONFIG_SPI_GPIO_MODULE)
332 #define GPIO_LCD_BASE (144)
333 #define GPIO_LCD_DIN (GPIO_LCD_BASE + 8) /* aux_gpio3_0 */
334 #define GPIO_LCD_DOUT (GPIO_LCD_BASE + 9) /* aux_gpio3_1 */
335 #define GPIO_LCD_SCL (GPIO_LCD_BASE + 10) /* aux_gpio3_2 */
336 #define GPIO_LCD_CS (GPIO_LCD_BASE + 11) /* aux_gpio3_3 */
337 #define LCD_SPI_BUS_NUM (1)
339 static struct spi_gpio_platform_data cm_x300_spi_gpio_pdata = {
341 .mosi = GPIO_LCD_DIN,
342 .miso = GPIO_LCD_DOUT,
346 static struct platform_device cm_x300_spi_gpio = {
348 .id = LCD_SPI_BUS_NUM,
350 .platform_data = &cm_x300_spi_gpio_pdata,
354 static struct tdo24m_platform_data cm_x300_tdo24m_pdata = {
358 static struct spi_board_info cm_x300_spi_devices[] __initdata = {
360 .modalias = "tdo24m",
361 .max_speed_hz = 1000000,
362 .bus_num = LCD_SPI_BUS_NUM,
364 .controller_data = (void *) GPIO_LCD_CS,
365 .platform_data = &cm_x300_tdo24m_pdata,
369 static void __init cm_x300_init_spi(void)
371 spi_register_board_info(cm_x300_spi_devices,
372 ARRAY_SIZE(cm_x300_spi_devices));
373 platform_device_register(&cm_x300_spi_gpio);
376 static inline void cm_x300_init_spi(void) {}
379 #if defined(CONFIG_SND_PXA2XX_LIB_AC97)
380 static void __init cm_x300_init_ac97(void)
382 pxa_set_ac97_info(NULL);
385 static inline void cm_x300_init_ac97(void) {}
388 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
389 static struct mtd_partition cm_x300_nand_partitions[] = {
394 .mask_flags = MTD_WRITEABLE, /* force read-only */
398 .offset = MTDPART_OFS_APPEND,
400 .mask_flags = MTD_WRITEABLE, /* force read-only */
403 .name = "Environment",
404 .offset = MTDPART_OFS_APPEND,
409 .offset = MTDPART_OFS_APPEND,
410 .size = SZ_256K + SZ_1M,
411 .mask_flags = MTD_WRITEABLE, /* force read-only */
415 .offset = MTDPART_OFS_APPEND,
420 .offset = MTDPART_OFS_APPEND,
421 .size = MTDPART_SIZ_FULL,
425 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
429 .parts[0] = cm_x300_nand_partitions,
430 .nr_parts[0] = ARRAY_SIZE(cm_x300_nand_partitions),
433 static void __init cm_x300_init_nand(void)
435 pxa3xx_set_nand_info(&cm_x300_nand_info);
438 static inline void cm_x300_init_nand(void) {}
441 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
442 static struct pxamci_platform_data cm_x300_mci_platform_data = {
443 .detect_delay_ms = 200,
444 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
445 .gpio_card_detect = GPIO82_MMC_IRQ,
446 .gpio_card_ro = GPIO85_MMC_WP,
450 /* The second MMC slot of CM-X300 is hardwired to Libertas card and has
451 no detection/ro pins */
452 static int cm_x300_mci2_init(struct device *dev,
453 irq_handler_t cm_x300_detect_int,
459 static void cm_x300_mci2_exit(struct device *dev, void *data)
463 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
464 .detect_delay_ms = 200,
465 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
466 .init = cm_x300_mci2_init,
467 .exit = cm_x300_mci2_exit,
468 .gpio_card_detect = -1,
473 static void __init cm_x300_init_mmc(void)
475 pxa_set_mci_info(&cm_x300_mci_platform_data);
476 pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
479 static inline void cm_x300_init_mmc(void) {}
482 #if defined(CONFIG_PXA310_ULPI)
483 static struct clk *pout_clk;
485 static int cm_x300_ulpi_phy_reset(void)
490 err = gpio_request_one(GPIO_ULPI_PHY_RST, GPIOF_OUT_INIT_LOW,
493 pr_err("failed to request ULPI reset GPIO: %d\n", err);
498 gpio_set_value(GPIO_ULPI_PHY_RST, 1);
501 gpio_free(GPIO_ULPI_PHY_RST);
506 static inline int cm_x300_u2d_init(struct device *dev)
510 if (cpu_is_pxa310()) {
511 /* CLK_POUT is connected to the ULPI PHY */
512 pout_clk = clk_get(NULL, "CLK_POUT");
513 if (IS_ERR(pout_clk)) {
514 err = PTR_ERR(pout_clk);
515 pr_err("failed to get CLK_POUT: %d\n", err);
518 clk_enable(pout_clk);
520 err = cm_x300_ulpi_phy_reset();
522 clk_disable(pout_clk);
530 static void cm_x300_u2d_exit(struct device *dev)
532 if (cpu_is_pxa310()) {
533 clk_disable(pout_clk);
538 static struct pxa3xx_u2d_platform_data cm_x300_u2d_platform_data = {
539 .ulpi_mode = ULPI_SER_6PIN,
540 .init = cm_x300_u2d_init,
541 .exit = cm_x300_u2d_exit,
544 static void cm_x300_init_u2d(void)
546 pxa3xx_set_u2d_info(&cm_x300_u2d_platform_data);
549 static inline void cm_x300_init_u2d(void) {}
552 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
553 static int cm_x300_ohci_init(struct device *dev)
557 | UP2OCR_HXOE | UP2OCR_DMPDE | UP2OCR_DPPDE;
562 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
563 .port_mode = PMM_PERPORT_MODE,
564 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW,
565 .init = cm_x300_ohci_init,
568 static void __init cm_x300_init_ohci(void)
570 pxa_set_ohci_info(&cm_x300_ohci_platform_data);
573 static inline void cm_x300_init_ohci(void) {}
576 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
577 static struct gpio_led cm_x300_leds[] = {
579 .name = "cm-x300:green",
580 .default_trigger = "heartbeat",
585 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
586 .num_leds = ARRAY_SIZE(cm_x300_leds),
587 .leds = cm_x300_leds,
590 static struct platform_device cm_x300_led_device = {
594 .platform_data = &cm_x300_gpio_led_pdata,
598 static void __init cm_x300_init_leds(void)
600 if (system_rev < 130)
601 cm_x300_leds[0].gpio = 79;
603 cm_x300_leds[0].gpio = 76;
605 platform_device_register(&cm_x300_led_device);
608 static inline void cm_x300_init_leds(void) {}
611 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
613 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
617 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
621 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
623 I2C_BOARD_INFO("pca9555", 0x24),
624 .platform_data = &cm_x300_gpio_ext_pdata_0,
627 I2C_BOARD_INFO("pca9555", 0x25),
628 .platform_data = &cm_x300_gpio_ext_pdata_1,
632 static void __init cm_x300_init_i2c(void)
634 pxa_set_i2c_info(NULL);
635 i2c_register_board_info(0, cm_x300_gpio_ext_info,
636 ARRAY_SIZE(cm_x300_gpio_ext_info));
639 static inline void cm_x300_init_i2c(void) {}
642 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
643 struct v3020_platform_data cm_x300_v3020_pdata = {
645 .gpio_cs = GPIO95_RTC_CS,
646 .gpio_wr = GPIO96_RTC_WR,
647 .gpio_rd = GPIO97_RTC_RD,
648 .gpio_io = GPIO98_RTC_IO,
651 static struct platform_device cm_x300_rtc_device = {
655 .platform_data = &cm_x300_v3020_pdata,
659 static void __init cm_x300_init_rtc(void)
661 platform_device_register(&cm_x300_rtc_device);
664 static inline void cm_x300_init_rtc(void) {}
668 struct power_supply_info cm_x300_psy_info = {
670 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
671 .voltage_max_design = 4200000,
672 .voltage_min_design = 3000000,
676 static void cm_x300_battery_low(void)
678 #if defined(CONFIG_APM_EMULATION)
679 apm_queue_event(APM_LOW_BATTERY);
683 static void cm_x300_battery_critical(void)
685 #if defined(CONFIG_APM_EMULATION)
686 apm_queue_event(APM_CRITICAL_SUSPEND);
690 struct da9030_battery_info cm_x300_battery_info = {
691 .battery_info = &cm_x300_psy_info,
693 .charge_milliamp = 1000,
694 .charge_millivolt = 4200,
698 .vbat_charge_start = 4100,
699 .vbat_charge_stop = 4200,
700 .vbat_charge_restart = 4000,
709 .batmon_interval = 0,
711 .battery_low = cm_x300_battery_low,
712 .battery_critical = cm_x300_battery_critical,
715 static struct regulator_consumer_supply buck2_consumers[] = {
716 REGULATOR_SUPPLY("vcc_core", NULL),
719 static struct regulator_init_data buck2_data = {
726 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
729 .num_consumer_supplies = ARRAY_SIZE(buck2_consumers),
730 .consumer_supplies = buck2_consumers,
734 struct da903x_subdev_info cm_x300_da9030_subdevs[] = {
736 .name = "da903x-battery",
738 .platform_data = &cm_x300_battery_info,
741 .name = "da903x-regulator",
742 .id = DA9030_ID_BUCK2,
743 .platform_data = &buck2_data,
747 static struct da903x_platform_data cm_x300_da9030_info = {
748 .num_subdevs = ARRAY_SIZE(cm_x300_da9030_subdevs),
749 .subdevs = cm_x300_da9030_subdevs,
752 static struct i2c_board_info cm_x300_pmic_info = {
753 I2C_BOARD_INFO("da9030", 0x49),
755 .platform_data = &cm_x300_da9030_info,
758 static struct i2c_pxa_platform_data cm_x300_pwr_i2c_info = {
762 static void __init cm_x300_init_da9030(void)
764 pxa3xx_set_i2c_power_info(&cm_x300_pwr_i2c_info);
765 i2c_register_board_info(1, &cm_x300_pmic_info, 1);
766 irq_set_irq_wake(IRQ_WAKEUP0, 1);
769 /* wi2wi gpio setting for system_rev >= 130 */
770 static struct gpio cm_x300_wi2wi_gpios[] __initdata = {
771 { 71, GPIOF_OUT_INIT_HIGH, "wlan en" },
772 { 70, GPIOF_OUT_INIT_HIGH, "bt reset" },
775 static void __init cm_x300_init_wi2wi(void)
779 if (system_rev < 130) {
780 cm_x300_wi2wi_gpios[0].gpio = 77; /* wlan en */
781 cm_x300_wi2wi_gpios[1].gpio = 78; /* bt reset */
784 /* Libertas and CSR reset */
785 err = gpio_request_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
787 pr_err("failed to request wifi/bt gpios: %d\n", err);
792 gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 0);
794 gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 1);
796 gpio_free_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
800 static void __init cm_x300_init_mfp(void)
802 /* board-processor specific GPIO initialization */
803 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_mfp_cfg));
805 if (system_rev < 130)
806 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_lt130_mfp_cfg));
808 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_ge130_mfp_cfg));
811 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x310_mfp_cfg));
814 static void __init cm_x300_init(void)
818 pxa_set_btuart_info(NULL);
819 pxa_set_stuart_info(NULL);
821 pxa_set_ffuart_info(NULL);
823 cm_x300_init_da9030();
824 cm_x300_init_dm9000();
835 cm_x300_init_wi2wi();
839 static void __init cm_x300_fixup(struct tag *tags, char **cmdline,
842 /* Make sure that mi->bank[0].start = PHYS_ADDR */
843 for (; tags->hdr.size; tags = tag_next(tags))
844 if (tags->hdr.tag == ATAG_MEM &&
845 tags->u.mem.start == 0x80000000) {
846 tags->u.mem.start = 0xa0000000;
851 MACHINE_START(CM_X300, "CM-X300 module")
852 .atag_offset = 0x100,
853 .map_io = pxa3xx_map_io,
854 .nr_irqs = PXA_NR_IRQS,
855 .init_irq = pxa3xx_init_irq,
856 .handle_irq = pxa3xx_handle_irq,
858 .init_machine = cm_x300_init,
859 .fixup = cm_x300_fixup,
860 .restart = pxa_restart,