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 <linux/soc/pxa/cpu.h>
45 #include <asm/mach-types.h>
46 #include <asm/mach/arch.h>
47 #include <asm/setup.h>
48 #include <asm/system_info.h>
51 #include "pxa27x-udc.h"
52 #include <linux/platform_data/video-pxafb.h>
53 #include <linux/platform_data/mmc-pxamci.h>
54 #include <linux/platform_data/usb-ohci-pxa27x.h>
55 #include <linux/platform_data/mtd-nand-pxa3xx.h>
56 #include <linux/platform_data/asoc-pxa.h>
57 #include <linux/platform_data/usb-pxa3xx-ulpi.h>
59 #include <asm/mach/map.h>
64 #define CM_X300_ETH_PHYS 0x08000010
66 #define GPIO82_MMC_IRQ (82)
67 #define GPIO85_MMC_WP (85)
69 #define CM_X300_MMC_IRQ PXA_GPIO_TO_IRQ(GPIO82_MMC_IRQ)
71 #define GPIO95_RTC_CS (95)
72 #define GPIO96_RTC_WR (96)
73 #define GPIO97_RTC_RD (97)
74 #define GPIO98_RTC_IO (98)
76 #define GPIO_ULPI_PHY_RST (127)
78 static mfp_cfg_t cm_x3xx_mfp_cfg[] __initdata = {
103 GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
105 GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
109 GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
112 GPIO23_AC97_nACRESET,
115 GPIO25_AC97_SDATA_IN_0,
116 GPIO27_AC97_SDATA_OUT,
120 GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
121 GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
122 GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
123 GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
124 GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
125 GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
126 GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
127 GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
137 GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
141 GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
145 GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
152 GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
157 GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
162 GPIO82_GPIO | MFP_PULL_HIGH, /* MMC CD */
163 GPIO85_GPIO, /* MMC WP */
164 GPIO99_GPIO, /* Ethernet IRQ */
167 GPIO95_GPIO | MFP_LPM_DRIVE_HIGH, /* RTC CS */
168 GPIO96_GPIO | MFP_LPM_DRIVE_HIGH, /* RTC WR */
169 GPIO97_GPIO | MFP_LPM_DRIVE_HIGH, /* RTC RD */
170 GPIO98_GPIO, /* RTC IO */
180 static mfp_cfg_t cm_x3xx_rev_lt130_mfp_cfg[] __initdata = {
182 GPIO79_GPIO, /* LED */
183 GPIO77_GPIO, /* WiFi reset */
184 GPIO78_GPIO, /* BT reset */
187 static mfp_cfg_t cm_x3xx_rev_ge130_mfp_cfg[] __initdata = {
189 GPIO76_GPIO, /* LED */
190 GPIO71_GPIO, /* WiFi reset */
191 GPIO70_GPIO, /* BT reset */
194 static mfp_cfg_t cm_x310_mfp_cfg[] __initdata = {
199 GPIO30_ULPI_DATA_OUT_0,
200 GPIO31_ULPI_DATA_OUT_1,
201 GPIO32_ULPI_DATA_OUT_2,
202 GPIO33_ULPI_DATA_OUT_3,
203 GPIO34_ULPI_DATA_OUT_4,
204 GPIO35_ULPI_DATA_OUT_5,
205 GPIO36_ULPI_DATA_OUT_6,
206 GPIO37_ULPI_DATA_OUT_7,
208 /* external PHY reset pin */
221 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
222 static struct resource dm9000_resources[] = {
224 .start = CM_X300_ETH_PHYS,
225 .end = CM_X300_ETH_PHYS + 0x3,
226 .flags = IORESOURCE_MEM,
229 .start = CM_X300_ETH_PHYS + 0x4,
230 .end = CM_X300_ETH_PHYS + 0x4 + 500,
231 .flags = IORESOURCE_MEM,
234 .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO99)),
235 .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO99)),
236 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
240 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
241 .flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
244 static struct platform_device dm9000_device = {
247 .num_resources = ARRAY_SIZE(dm9000_resources),
248 .resource = dm9000_resources,
250 .platform_data = &cm_x300_dm9000_platdata,
255 static void __init cm_x300_init_dm9000(void)
257 platform_device_register(&dm9000_device);
260 static inline void cm_x300_init_dm9000(void) {}
264 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
265 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
294 static struct pxafb_mach_info cm_x300_lcd = {
295 .modes = cm_x300_lcd_modes,
296 .num_modes = ARRAY_SIZE(cm_x300_lcd_modes),
297 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
300 static void __init cm_x300_init_lcd(void)
302 pxa_set_fb_info(NULL, &cm_x300_lcd);
305 static inline void cm_x300_init_lcd(void) {}
308 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
309 static struct pwm_lookup cm_x300_pwm_lookup[] = {
310 PWM_LOOKUP("pxa27x-pwm.0", 1, "pwm-backlight.0", NULL, 10000,
311 PWM_POLARITY_NORMAL),
314 static struct platform_pwm_backlight_data cm_x300_backlight_data = {
315 .max_brightness = 100,
316 .dft_brightness = 100,
319 static struct platform_device cm_x300_backlight_device = {
320 .name = "pwm-backlight",
322 .parent = &pxa27x_device_pwm0.dev,
323 .platform_data = &cm_x300_backlight_data,
327 static void cm_x300_init_bl(void)
329 pwm_add_table(cm_x300_pwm_lookup, ARRAY_SIZE(cm_x300_pwm_lookup));
330 platform_device_register(&cm_x300_backlight_device);
333 static inline void cm_x300_init_bl(void) {}
336 #if defined(CONFIG_SPI_GPIO) || defined(CONFIG_SPI_GPIO_MODULE)
337 #define GPIO_LCD_BASE (144)
338 #define GPIO_LCD_DIN (GPIO_LCD_BASE + 8) /* aux_gpio3_0 */
339 #define GPIO_LCD_DOUT (GPIO_LCD_BASE + 9) /* aux_gpio3_1 */
340 #define GPIO_LCD_SCL (GPIO_LCD_BASE + 10) /* aux_gpio3_2 */
341 #define GPIO_LCD_CS (GPIO_LCD_BASE + 11) /* aux_gpio3_3 */
342 #define LCD_SPI_BUS_NUM (1)
344 static struct spi_gpio_platform_data cm_x300_spi_gpio_pdata = {
348 static struct platform_device cm_x300_spi_gpio = {
350 .id = LCD_SPI_BUS_NUM,
352 .platform_data = &cm_x300_spi_gpio_pdata,
356 static struct gpiod_lookup_table cm_x300_spi_gpiod_table = {
357 .dev_id = "spi_gpio",
359 GPIO_LOOKUP("pca9555.1", GPIO_LCD_SCL - GPIO_LCD_BASE,
360 "sck", GPIO_ACTIVE_HIGH),
361 GPIO_LOOKUP("pca9555.1", GPIO_LCD_DIN - GPIO_LCD_BASE,
362 "mosi", GPIO_ACTIVE_HIGH),
363 GPIO_LOOKUP("pca9555.1", GPIO_LCD_DOUT - GPIO_LCD_BASE,
364 "miso", GPIO_ACTIVE_HIGH),
365 GPIO_LOOKUP("pca9555.1", GPIO_LCD_CS - GPIO_LCD_BASE,
366 "cs", GPIO_ACTIVE_HIGH),
371 static struct tdo24m_platform_data cm_x300_tdo24m_pdata = {
375 static struct spi_board_info cm_x300_spi_devices[] __initdata = {
377 .modalias = "tdo24m",
378 .max_speed_hz = 1000000,
379 .bus_num = LCD_SPI_BUS_NUM,
381 .platform_data = &cm_x300_tdo24m_pdata,
385 static void __init cm_x300_init_spi(void)
387 spi_register_board_info(cm_x300_spi_devices,
388 ARRAY_SIZE(cm_x300_spi_devices));
389 gpiod_add_lookup_table(&cm_x300_spi_gpiod_table);
390 platform_device_register(&cm_x300_spi_gpio);
393 static inline void cm_x300_init_spi(void) {}
396 #if defined(CONFIG_SND_PXA2XX_LIB_AC97)
397 static void __init cm_x300_init_ac97(void)
399 pxa_set_ac97_info(NULL);
402 static inline void cm_x300_init_ac97(void) {}
405 #if IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
406 static struct mtd_partition cm_x300_nand_partitions[] = {
411 .mask_flags = MTD_WRITEABLE, /* force read-only */
415 .offset = MTDPART_OFS_APPEND,
417 .mask_flags = MTD_WRITEABLE, /* force read-only */
420 .name = "Environment",
421 .offset = MTDPART_OFS_APPEND,
426 .offset = MTDPART_OFS_APPEND,
427 .size = SZ_256K + SZ_1M,
428 .mask_flags = MTD_WRITEABLE, /* force read-only */
432 .offset = MTDPART_OFS_APPEND,
437 .offset = MTDPART_OFS_APPEND,
438 .size = MTDPART_SIZ_FULL,
442 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
444 .parts = cm_x300_nand_partitions,
445 .nr_parts = ARRAY_SIZE(cm_x300_nand_partitions),
448 static void __init cm_x300_init_nand(void)
450 pxa3xx_set_nand_info(&cm_x300_nand_info);
453 static inline void cm_x300_init_nand(void) {}
456 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
457 static struct pxamci_platform_data cm_x300_mci_platform_data = {
458 .detect_delay_ms = 200,
459 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
462 static struct gpiod_lookup_table cm_x300_mci_gpio_table = {
463 .dev_id = "pxa2xx-mci.0",
465 /* Card detect on GPIO 82 */
466 GPIO_LOOKUP("gpio-pxa", GPIO82_MMC_IRQ, "cd", GPIO_ACTIVE_LOW),
467 /* Write protect on GPIO 85 */
468 GPIO_LOOKUP("gpio-pxa", GPIO85_MMC_WP, "wp", GPIO_ACTIVE_LOW),
473 /* The second MMC slot of CM-X300 is hardwired to Libertas card and has
474 no detection/ro pins */
475 static int cm_x300_mci2_init(struct device *dev,
476 irq_handler_t cm_x300_detect_int,
482 static void cm_x300_mci2_exit(struct device *dev, void *data)
486 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
487 .detect_delay_ms = 200,
488 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
489 .init = cm_x300_mci2_init,
490 .exit = cm_x300_mci2_exit,
493 static void __init cm_x300_init_mmc(void)
495 gpiod_add_lookup_table(&cm_x300_mci_gpio_table);
496 pxa_set_mci_info(&cm_x300_mci_platform_data);
497 pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
500 static inline void cm_x300_init_mmc(void) {}
503 #if defined(CONFIG_PXA310_ULPI)
504 static struct clk *pout_clk;
506 static int cm_x300_ulpi_phy_reset(void)
511 err = gpio_request_one(GPIO_ULPI_PHY_RST, GPIOF_OUT_INIT_LOW,
514 pr_err("failed to request ULPI reset GPIO: %d\n", err);
519 gpio_set_value(GPIO_ULPI_PHY_RST, 1);
522 gpio_free(GPIO_ULPI_PHY_RST);
527 static int cm_x300_u2d_init(struct device *dev)
531 if (cpu_is_pxa310()) {
532 /* CLK_POUT is connected to the ULPI PHY */
533 pout_clk = clk_get(NULL, "CLK_POUT");
534 if (IS_ERR(pout_clk)) {
535 err = PTR_ERR(pout_clk);
536 pr_err("failed to get CLK_POUT: %d\n", err);
539 clk_prepare_enable(pout_clk);
541 err = cm_x300_ulpi_phy_reset();
543 clk_disable(pout_clk);
551 static void cm_x300_u2d_exit(struct device *dev)
553 if (cpu_is_pxa310()) {
554 clk_disable_unprepare(pout_clk);
559 static struct pxa3xx_u2d_platform_data cm_x300_u2d_platform_data = {
560 .ulpi_mode = ULPI_SER_6PIN,
561 .init = cm_x300_u2d_init,
562 .exit = cm_x300_u2d_exit,
565 static void __init cm_x300_init_u2d(void)
567 pxa3xx_set_u2d_info(&cm_x300_u2d_platform_data);
570 static inline void cm_x300_init_u2d(void) {}
573 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
574 static int cm_x300_ohci_init(struct device *dev)
578 | UP2OCR_HXOE | UP2OCR_DMPDE | UP2OCR_DPPDE;
583 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
584 .port_mode = PMM_PERPORT_MODE,
585 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW,
586 .init = cm_x300_ohci_init,
589 static void __init cm_x300_init_ohci(void)
591 pxa_set_ohci_info(&cm_x300_ohci_platform_data);
594 static inline void cm_x300_init_ohci(void) {}
597 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
598 static struct gpio_led cm_x300_leds[] = {
600 .name = "cm-x300:green",
601 .default_trigger = "heartbeat",
606 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
607 .num_leds = ARRAY_SIZE(cm_x300_leds),
608 .leds = cm_x300_leds,
611 static struct platform_device cm_x300_led_device = {
615 .platform_data = &cm_x300_gpio_led_pdata,
619 static void __init cm_x300_init_leds(void)
621 if (system_rev < 130)
622 cm_x300_leds[0].gpio = 79;
624 cm_x300_leds[0].gpio = 76;
626 platform_device_register(&cm_x300_led_device);
629 static inline void cm_x300_init_leds(void) {}
632 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
634 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
638 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
642 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
644 I2C_BOARD_INFO("pca9555", 0x24),
645 .platform_data = &cm_x300_gpio_ext_pdata_0,
648 I2C_BOARD_INFO("pca9555", 0x25),
649 .platform_data = &cm_x300_gpio_ext_pdata_1,
653 static void __init cm_x300_init_i2c(void)
655 pxa_set_i2c_info(NULL);
656 i2c_register_board_info(0, cm_x300_gpio_ext_info,
657 ARRAY_SIZE(cm_x300_gpio_ext_info));
660 static inline void cm_x300_init_i2c(void) {}
663 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
664 struct v3020_platform_data cm_x300_v3020_pdata = {
666 .gpio_cs = GPIO95_RTC_CS,
667 .gpio_wr = GPIO96_RTC_WR,
668 .gpio_rd = GPIO97_RTC_RD,
669 .gpio_io = GPIO98_RTC_IO,
672 static struct platform_device cm_x300_rtc_device = {
676 .platform_data = &cm_x300_v3020_pdata,
680 static void __init cm_x300_init_rtc(void)
682 platform_device_register(&cm_x300_rtc_device);
685 static inline void cm_x300_init_rtc(void) {}
689 struct power_supply_info cm_x300_psy_info = {
691 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
692 .voltage_max_design = 4200000,
693 .voltage_min_design = 3000000,
697 static void cm_x300_battery_low(void)
699 #if defined(CONFIG_APM_EMULATION)
700 apm_queue_event(APM_LOW_BATTERY);
704 static void cm_x300_battery_critical(void)
706 #if defined(CONFIG_APM_EMULATION)
707 apm_queue_event(APM_CRITICAL_SUSPEND);
711 struct da9030_battery_info cm_x300_battery_info = {
712 .battery_info = &cm_x300_psy_info,
714 .charge_milliamp = 1000,
715 .charge_millivolt = 4200,
719 .vbat_charge_start = 4100,
720 .vbat_charge_stop = 4200,
721 .vbat_charge_restart = 4000,
730 .batmon_interval = 0,
732 .battery_low = cm_x300_battery_low,
733 .battery_critical = cm_x300_battery_critical,
736 static struct regulator_consumer_supply buck2_consumers[] = {
737 REGULATOR_SUPPLY("vcc_core", NULL),
740 static struct regulator_init_data buck2_data = {
747 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
750 .num_consumer_supplies = ARRAY_SIZE(buck2_consumers),
751 .consumer_supplies = buck2_consumers,
755 struct da903x_subdev_info cm_x300_da9030_subdevs[] = {
757 .name = "da903x-battery",
759 .platform_data = &cm_x300_battery_info,
762 .name = "da903x-regulator",
763 .id = DA9030_ID_BUCK2,
764 .platform_data = &buck2_data,
768 static struct da903x_platform_data cm_x300_da9030_info = {
769 .num_subdevs = ARRAY_SIZE(cm_x300_da9030_subdevs),
770 .subdevs = cm_x300_da9030_subdevs,
773 static struct i2c_board_info cm_x300_pmic_info = {
774 I2C_BOARD_INFO("da9030", 0x49),
776 .platform_data = &cm_x300_da9030_info,
779 static struct i2c_pxa_platform_data cm_x300_pwr_i2c_info = {
783 static void __init cm_x300_init_da9030(void)
785 pxa3xx_set_i2c_power_info(&cm_x300_pwr_i2c_info);
786 i2c_register_board_info(1, &cm_x300_pmic_info, 1);
787 irq_set_irq_wake(IRQ_WAKEUP0, 1);
790 /* wi2wi gpio setting for system_rev >= 130 */
791 static struct gpio cm_x300_wi2wi_gpios[] __initdata = {
792 { 71, GPIOF_OUT_INIT_HIGH, "wlan en" },
793 { 70, GPIOF_OUT_INIT_HIGH, "bt reset" },
796 static void __init cm_x300_init_wi2wi(void)
800 if (system_rev < 130) {
801 cm_x300_wi2wi_gpios[0].gpio = 77; /* wlan en */
802 cm_x300_wi2wi_gpios[1].gpio = 78; /* bt reset */
805 /* Libertas and CSR reset */
806 err = gpio_request_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
808 pr_err("failed to request wifi/bt gpios: %d\n", err);
813 gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 0);
815 gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 1);
817 gpio_free_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
821 static void __init cm_x300_init_mfp(void)
823 /* board-processor specific GPIO initialization */
824 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_mfp_cfg));
826 if (system_rev < 130)
827 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_lt130_mfp_cfg));
829 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_ge130_mfp_cfg));
832 pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x310_mfp_cfg));
835 static void __init cm_x300_init(void)
839 pxa_set_btuart_info(NULL);
840 pxa_set_stuart_info(NULL);
842 pxa_set_ffuart_info(NULL);
844 cm_x300_init_da9030();
845 cm_x300_init_dm9000();
856 cm_x300_init_wi2wi();
859 regulator_has_full_constraints();
862 static void __init cm_x300_fixup(struct tag *tags, char **cmdline)
864 /* Make sure that mi->bank[0].start = PHYS_ADDR */
865 for (; tags->hdr.size; tags = tag_next(tags))
866 if (tags->hdr.tag == ATAG_MEM &&
867 tags->u.mem.start == 0x80000000) {
868 tags->u.mem.start = 0xa0000000;
873 MACHINE_START(CM_X300, "CM-X300 module")
874 .atag_offset = 0x100,
875 .map_io = pxa3xx_map_io,
876 .nr_irqs = PXA_NR_IRQS,
877 .init_irq = pxa3xx_init_irq,
878 .handle_irq = pxa3xx_handle_irq,
879 .init_time = pxa_timer_init,
880 .init_machine = cm_x300_init,
881 .fixup = cm_x300_fixup,
882 .restart = pxa_restart,