1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/arch/arm/mach-pxa/cm-x300.c
5 * Support for the CompuLab CM-X300 modules
7 * Copyright (C) 2008,2009 CompuLab Ltd.
9 * Mike Rapoport <mike@compulab.co.il>
10 * Igor Grinberg <grinberg@compulab.co.il>
12 #define pr_fmt(fmt) "%s: " fmt, __func__
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>
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>
30 #include <linux/i2c.h>
31 #include <linux/platform_data/pca953x.h>
32 #include <linux/platform_data/i2c-pxa.h>
34 #include <linux/mfd/da903x.h>
35 #include <linux/regulator/machine.h>
36 #include <linux/power_supply.h>
37 #include <linux/apm-emulation.h>
39 #include <linux/spi/spi.h>
40 #include <linux/spi/spi_gpio.h>
41 #include <linux/spi/tdo24m.h>
43 #include <asm/mach-types.h>
44 #include <asm/mach/arch.h>
45 #include <asm/setup.h>
46 #include <asm/system_info.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>
57 #include <asm/mach/map.h>
62 #define CM_X300_ETH_PHYS 0x08000010
64 #define GPIO82_MMC_IRQ (82)
65 #define GPIO85_MMC_WP (85)
67 #define CM_X300_MMC_IRQ PXA_GPIO_TO_IRQ(GPIO82_MMC_IRQ)
69 #define GPIO95_RTC_CS (95)
70 #define GPIO96_RTC_WR (96)
71 #define GPIO97_RTC_RD (97)
72 #define GPIO98_RTC_IO (98)
74 #define GPIO_ULPI_PHY_RST (127)
76 static mfp_cfg_t cm_x3xx_mfp_cfg[] __initdata = {
101 GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
103 GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
107 GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
110 GPIO23_AC97_nACRESET,
113 GPIO25_AC97_SDATA_IN_0,
114 GPIO27_AC97_SDATA_OUT,
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,
135 GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
139 GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
143 GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
150 GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
155 GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
160 GPIO82_GPIO | MFP_PULL_HIGH, /* MMC CD */
161 GPIO85_GPIO, /* MMC WP */
162 GPIO99_GPIO, /* Ethernet IRQ */
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 */
178 static mfp_cfg_t cm_x3xx_rev_lt130_mfp_cfg[] __initdata = {
180 GPIO79_GPIO, /* LED */
181 GPIO77_GPIO, /* WiFi reset */
182 GPIO78_GPIO, /* BT reset */
185 static mfp_cfg_t cm_x3xx_rev_ge130_mfp_cfg[] __initdata = {
187 GPIO76_GPIO, /* LED */
188 GPIO71_GPIO, /* WiFi reset */
189 GPIO70_GPIO, /* BT reset */
192 static mfp_cfg_t cm_x310_mfp_cfg[] __initdata = {
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,
206 /* external PHY reset pin */
219 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
220 static struct resource dm9000_resources[] = {
222 .start = CM_X300_ETH_PHYS,
223 .end = CM_X300_ETH_PHYS + 0x3,
224 .flags = IORESOURCE_MEM,
227 .start = CM_X300_ETH_PHYS + 0x4,
228 .end = CM_X300_ETH_PHYS + 0x4 + 500,
229 .flags = IORESOURCE_MEM,
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,
238 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
239 .flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
242 static struct platform_device dm9000_device = {
245 .num_resources = ARRAY_SIZE(dm9000_resources),
246 .resource = dm9000_resources,
248 .platform_data = &cm_x300_dm9000_platdata,
253 static void __init cm_x300_init_dm9000(void)
255 platform_device_register(&dm9000_device);
258 static inline void cm_x300_init_dm9000(void) {}
262 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
263 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
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,
298 static void __init cm_x300_init_lcd(void)
300 pxa_set_fb_info(NULL, &cm_x300_lcd);
303 static inline void cm_x300_init_lcd(void) {}
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),
312 static struct platform_pwm_backlight_data cm_x300_backlight_data = {
313 .max_brightness = 100,
314 .dft_brightness = 100,
317 static struct platform_device cm_x300_backlight_device = {
318 .name = "pwm-backlight",
320 .parent = &pxa27x_device_pwm0.dev,
321 .platform_data = &cm_x300_backlight_data,
325 static void cm_x300_init_bl(void)
327 pwm_add_table(cm_x300_pwm_lookup, ARRAY_SIZE(cm_x300_pwm_lookup));
328 platform_device_register(&cm_x300_backlight_device);
331 static inline void cm_x300_init_bl(void) {}
334 #if defined(CONFIG_SPI_GPIO) || defined(CONFIG_SPI_GPIO_MODULE)
335 #define GPIO_LCD_BASE (144)
336 #define GPIO_LCD_DIN (GPIO_LCD_BASE + 8) /* aux_gpio3_0 */
337 #define GPIO_LCD_DOUT (GPIO_LCD_BASE + 9) /* aux_gpio3_1 */
338 #define GPIO_LCD_SCL (GPIO_LCD_BASE + 10) /* aux_gpio3_2 */
339 #define GPIO_LCD_CS (GPIO_LCD_BASE + 11) /* aux_gpio3_3 */
340 #define LCD_SPI_BUS_NUM (1)
342 static struct spi_gpio_platform_data cm_x300_spi_gpio_pdata = {
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 gpiod_lookup_table cm_x300_spi_gpiod_table = {
355 .dev_id = "spi_gpio",
357 GPIO_LOOKUP("pca9555.1", GPIO_LCD_SCL - GPIO_LCD_BASE,
358 "sck", GPIO_ACTIVE_HIGH),
359 GPIO_LOOKUP("pca9555.1", GPIO_LCD_DIN - GPIO_LCD_BASE,
360 "mosi", GPIO_ACTIVE_HIGH),
361 GPIO_LOOKUP("pca9555.1", GPIO_LCD_DOUT - GPIO_LCD_BASE,
362 "miso", GPIO_ACTIVE_HIGH),
363 GPIO_LOOKUP("pca9555.1", GPIO_LCD_CS - GPIO_LCD_BASE,
364 "cs", GPIO_ACTIVE_HIGH),
369 static struct tdo24m_platform_data cm_x300_tdo24m_pdata = {
373 static struct spi_board_info cm_x300_spi_devices[] __initdata = {
375 .modalias = "tdo24m",
376 .max_speed_hz = 1000000,
377 .bus_num = LCD_SPI_BUS_NUM,
379 .platform_data = &cm_x300_tdo24m_pdata,
383 static void __init cm_x300_init_spi(void)
385 spi_register_board_info(cm_x300_spi_devices,
386 ARRAY_SIZE(cm_x300_spi_devices));
387 gpiod_add_lookup_table(&cm_x300_spi_gpiod_table);
388 platform_device_register(&cm_x300_spi_gpio);
391 static inline void cm_x300_init_spi(void) {}
394 #if defined(CONFIG_SND_PXA2XX_LIB_AC97)
395 static void __init cm_x300_init_ac97(void)
397 pxa_set_ac97_info(NULL);
400 static inline void cm_x300_init_ac97(void) {}
403 #if IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
404 static struct mtd_partition cm_x300_nand_partitions[] = {
409 .mask_flags = MTD_WRITEABLE, /* force read-only */
413 .offset = MTDPART_OFS_APPEND,
415 .mask_flags = MTD_WRITEABLE, /* force read-only */
418 .name = "Environment",
419 .offset = MTDPART_OFS_APPEND,
424 .offset = MTDPART_OFS_APPEND,
425 .size = SZ_256K + SZ_1M,
426 .mask_flags = MTD_WRITEABLE, /* force read-only */
430 .offset = MTDPART_OFS_APPEND,
435 .offset = MTDPART_OFS_APPEND,
436 .size = MTDPART_SIZ_FULL,
440 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
442 .parts = cm_x300_nand_partitions,
443 .nr_parts = ARRAY_SIZE(cm_x300_nand_partitions),
446 static void __init cm_x300_init_nand(void)
448 pxa3xx_set_nand_info(&cm_x300_nand_info);
451 static inline void cm_x300_init_nand(void) {}
454 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
455 static struct pxamci_platform_data cm_x300_mci_platform_data = {
456 .detect_delay_ms = 200,
457 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
460 static struct gpiod_lookup_table cm_x300_mci_gpio_table = {
461 .dev_id = "pxa2xx-mci.0",
463 /* Card detect on GPIO 82 */
464 GPIO_LOOKUP("gpio-pxa", GPIO82_MMC_IRQ, "cd", GPIO_ACTIVE_LOW),
465 /* Write protect on GPIO 85 */
466 GPIO_LOOKUP("gpio-pxa", GPIO85_MMC_WP, "wp", GPIO_ACTIVE_LOW),
471 /* The second MMC slot of CM-X300 is hardwired to Libertas card and has
472 no detection/ro pins */
473 static int cm_x300_mci2_init(struct device *dev,
474 irq_handler_t cm_x300_detect_int,
480 static void cm_x300_mci2_exit(struct device *dev, void *data)
484 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
485 .detect_delay_ms = 200,
486 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
487 .init = cm_x300_mci2_init,
488 .exit = cm_x300_mci2_exit,
491 static void __init cm_x300_init_mmc(void)
493 gpiod_add_lookup_table(&cm_x300_mci_gpio_table);
494 pxa_set_mci_info(&cm_x300_mci_platform_data);
495 pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
498 static inline void cm_x300_init_mmc(void) {}
501 #if defined(CONFIG_PXA310_ULPI)
502 static struct clk *pout_clk;
504 static int cm_x300_ulpi_phy_reset(void)
509 err = gpio_request_one(GPIO_ULPI_PHY_RST, GPIOF_OUT_INIT_LOW,
512 pr_err("failed to request ULPI reset GPIO: %d\n", err);
517 gpio_set_value(GPIO_ULPI_PHY_RST, 1);
520 gpio_free(GPIO_ULPI_PHY_RST);
525 static int cm_x300_u2d_init(struct device *dev)
529 if (cpu_is_pxa310()) {
530 /* CLK_POUT is connected to the ULPI PHY */
531 pout_clk = clk_get(NULL, "CLK_POUT");
532 if (IS_ERR(pout_clk)) {
533 err = PTR_ERR(pout_clk);
534 pr_err("failed to get CLK_POUT: %d\n", err);
537 clk_prepare_enable(pout_clk);
539 err = cm_x300_ulpi_phy_reset();
541 clk_disable(pout_clk);
549 static void cm_x300_u2d_exit(struct device *dev)
551 if (cpu_is_pxa310()) {
552 clk_disable_unprepare(pout_clk);
557 static struct pxa3xx_u2d_platform_data cm_x300_u2d_platform_data = {
558 .ulpi_mode = ULPI_SER_6PIN,
559 .init = cm_x300_u2d_init,
560 .exit = cm_x300_u2d_exit,
563 static void __init cm_x300_init_u2d(void)
565 pxa3xx_set_u2d_info(&cm_x300_u2d_platform_data);
568 static inline void cm_x300_init_u2d(void) {}
571 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
572 static int cm_x300_ohci_init(struct device *dev)
576 | UP2OCR_HXOE | UP2OCR_DMPDE | UP2OCR_DPPDE;
581 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
582 .port_mode = PMM_PERPORT_MODE,
583 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW,
584 .init = cm_x300_ohci_init,
587 static void __init cm_x300_init_ohci(void)
589 pxa_set_ohci_info(&cm_x300_ohci_platform_data);
592 static inline void cm_x300_init_ohci(void) {}
595 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
596 static struct gpio_led cm_x300_leds[] = {
598 .name = "cm-x300:green",
599 .default_trigger = "heartbeat",
604 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
605 .num_leds = ARRAY_SIZE(cm_x300_leds),
606 .leds = cm_x300_leds,
609 static struct platform_device cm_x300_led_device = {
613 .platform_data = &cm_x300_gpio_led_pdata,
617 static void __init cm_x300_init_leds(void)
619 if (system_rev < 130)
620 cm_x300_leds[0].gpio = 79;
622 cm_x300_leds[0].gpio = 76;
624 platform_device_register(&cm_x300_led_device);
627 static inline void cm_x300_init_leds(void) {}
630 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
632 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
636 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
640 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
642 I2C_BOARD_INFO("pca9555", 0x24),
643 .platform_data = &cm_x300_gpio_ext_pdata_0,
646 I2C_BOARD_INFO("pca9555", 0x25),
647 .platform_data = &cm_x300_gpio_ext_pdata_1,
651 static void __init cm_x300_init_i2c(void)
653 pxa_set_i2c_info(NULL);
654 i2c_register_board_info(0, cm_x300_gpio_ext_info,
655 ARRAY_SIZE(cm_x300_gpio_ext_info));
658 static inline void cm_x300_init_i2c(void) {}
661 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
662 struct v3020_platform_data cm_x300_v3020_pdata = {
664 .gpio_cs = GPIO95_RTC_CS,
665 .gpio_wr = GPIO96_RTC_WR,
666 .gpio_rd = GPIO97_RTC_RD,
667 .gpio_io = GPIO98_RTC_IO,
670 static struct platform_device cm_x300_rtc_device = {
674 .platform_data = &cm_x300_v3020_pdata,
678 static void __init cm_x300_init_rtc(void)
680 platform_device_register(&cm_x300_rtc_device);
683 static inline void cm_x300_init_rtc(void) {}
687 struct power_supply_info cm_x300_psy_info = {
689 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
690 .voltage_max_design = 4200000,
691 .voltage_min_design = 3000000,
695 static void cm_x300_battery_low(void)
697 #if defined(CONFIG_APM_EMULATION)
698 apm_queue_event(APM_LOW_BATTERY);
702 static void cm_x300_battery_critical(void)
704 #if defined(CONFIG_APM_EMULATION)
705 apm_queue_event(APM_CRITICAL_SUSPEND);
709 struct da9030_battery_info cm_x300_battery_info = {
710 .battery_info = &cm_x300_psy_info,
712 .charge_milliamp = 1000,
713 .charge_millivolt = 4200,
717 .vbat_charge_start = 4100,
718 .vbat_charge_stop = 4200,
719 .vbat_charge_restart = 4000,
728 .batmon_interval = 0,
730 .battery_low = cm_x300_battery_low,
731 .battery_critical = cm_x300_battery_critical,
734 static struct regulator_consumer_supply buck2_consumers[] = {
735 REGULATOR_SUPPLY("vcc_core", NULL),
738 static struct regulator_init_data buck2_data = {
745 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
748 .num_consumer_supplies = ARRAY_SIZE(buck2_consumers),
749 .consumer_supplies = buck2_consumers,
753 struct da903x_subdev_info cm_x300_da9030_subdevs[] = {
755 .name = "da903x-battery",
757 .platform_data = &cm_x300_battery_info,
760 .name = "da903x-regulator",
761 .id = DA9030_ID_BUCK2,
762 .platform_data = &buck2_data,
766 static struct da903x_platform_data cm_x300_da9030_info = {
767 .num_subdevs = ARRAY_SIZE(cm_x300_da9030_subdevs),
768 .subdevs = cm_x300_da9030_subdevs,
771 static struct i2c_board_info cm_x300_pmic_info = {
772 I2C_BOARD_INFO("da9030", 0x49),
774 .platform_data = &cm_x300_da9030_info,
777 static struct i2c_pxa_platform_data cm_x300_pwr_i2c_info = {
781 static void __init cm_x300_init_da9030(void)
783 pxa3xx_set_i2c_power_info(&cm_x300_pwr_i2c_info);
784 i2c_register_board_info(1, &cm_x300_pmic_info, 1);
785 irq_set_irq_wake(IRQ_WAKEUP0, 1);
788 /* wi2wi gpio setting for system_rev >= 130 */
789 static struct gpio cm_x300_wi2wi_gpios[] __initdata = {
790 { 71, GPIOF_OUT_INIT_HIGH, "wlan en" },
791 { 70, GPIOF_OUT_INIT_HIGH, "bt reset" },
794 static void __init cm_x300_init_wi2wi(void)
798 if (system_rev < 130) {
799 cm_x300_wi2wi_gpios[0].gpio = 77; /* wlan en */
800 cm_x300_wi2wi_gpios[1].gpio = 78; /* bt reset */
803 /* Libertas and CSR reset */
804 err = gpio_request_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
806 pr_err("failed to request wifi/bt gpios: %d\n", err);
811 gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 0);
813 gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 1);
815 gpio_free_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
819 static void __init cm_x300_init_mfp(void)
821 /* board-processor specific GPIO initialization */
822 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_mfp_cfg));
824 if (system_rev < 130)
825 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_lt130_mfp_cfg));
827 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_ge130_mfp_cfg));
830 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x310_mfp_cfg));
833 static void __init cm_x300_init(void)
837 pxa_set_btuart_info(NULL);
838 pxa_set_stuart_info(NULL);
840 pxa_set_ffuart_info(NULL);
842 cm_x300_init_da9030();
843 cm_x300_init_dm9000();
854 cm_x300_init_wi2wi();
857 regulator_has_full_constraints();
860 static void __init cm_x300_fixup(struct tag *tags, char **cmdline)
862 /* Make sure that mi->bank[0].start = PHYS_ADDR */
863 for (; tags->hdr.size; tags = tag_next(tags))
864 if (tags->hdr.tag == ATAG_MEM &&
865 tags->u.mem.start == 0x80000000) {
866 tags->u.mem.start = 0xa0000000;
871 MACHINE_START(CM_X300, "CM-X300 module")
872 .atag_offset = 0x100,
873 .map_io = pxa3xx_map_io,
874 .nr_irqs = PXA_NR_IRQS,
875 .init_irq = pxa3xx_init_irq,
876 .handle_irq = pxa3xx_handle_irq,
877 .init_time = pxa_timer_init,
878 .init_machine = cm_x300_init,
879 .fixup = cm_x300_fixup,
880 .restart = pxa_restart,