2 * Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
15 #include <linux/delay.h>
16 #include <linux/dma-mapping.h>
17 #include <linux/gfp.h>
18 #include <linux/gpio.h>
19 #include <linux/init.h>
20 #include <linux/interrupt.h>
21 #include <linux/leds.h>
22 #include <linux/memory.h>
23 #include <linux/mtd/physmap.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/platform_device.h>
26 #include <linux/regulator/machine.h>
27 #include <linux/mfd/mc13783.h>
28 #include <linux/spi/spi.h>
29 #include <linux/types.h>
30 #include <linux/memblock.h>
31 #include <linux/clk.h>
33 #include <linux/err.h>
34 #include <linux/input.h>
36 #include <linux/usb/otg.h>
37 #include <linux/usb/ulpi.h>
39 #include <asm/mach-types.h>
40 #include <asm/mach/arch.h>
41 #include <asm/mach/time.h>
42 #include <asm/mach/map.h>
43 #include <mach/board-mx31moboard.h>
44 #include <mach/common.h>
45 #include <mach/hardware.h>
46 #include <mach/iomux-mx3.h>
47 #include <mach/ulpi.h>
49 #include "devices-imx31.h"
51 static unsigned int moboard_pins[] = {
53 MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
54 MX31_PIN_CTS1__GPIO2_7,
56 MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
57 MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
59 MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
61 MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
63 MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
64 MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
65 MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
66 MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
68 MX31_PIN_GPIO1_0__GPIO1_0,
70 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
71 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
72 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
73 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
74 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
75 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
76 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
77 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
78 MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
79 MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
80 MX31_PIN_USB_OC__GPIO1_30,
82 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
83 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
84 MX31_PIN_STXD3__USBH2_DATA2, MX31_PIN_SRXD3__USBH2_DATA3,
85 MX31_PIN_SCK3__USBH2_DATA4, MX31_PIN_SFS3__USBH2_DATA5,
86 MX31_PIN_STXD6__USBH2_DATA6, MX31_PIN_SRXD6__USBH2_DATA7,
87 MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR,
88 MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP,
89 MX31_PIN_SCK6__GPIO1_25,
91 MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
92 MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
94 MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO,
95 MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
96 MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2,
98 MX31_PIN_GPIO1_3__GPIO1_3,
100 MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO,
101 MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY,
102 MX31_PIN_CSPI2_SS1__CSPI3_SS1,
105 static struct physmap_flash_data mx31moboard_flash_data = {
109 static struct resource mx31moboard_flash_resource = {
112 .flags = IORESOURCE_MEM,
115 static struct platform_device mx31moboard_flash = {
116 .name = "physmap-flash",
119 .platform_data = &mx31moboard_flash_data,
121 .resource = &mx31moboard_flash_resource,
125 static int moboard_uart0_init(struct platform_device *pdev)
127 int ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack");
131 ret = gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0);
133 gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
138 static void moboard_uart0_exit(struct platform_device *pdev)
140 gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
143 static const struct imxuart_platform_data uart0_pdata __initconst = {
144 .init = moboard_uart0_init,
145 .exit = moboard_uart0_exit,
148 static const struct imxuart_platform_data uart4_pdata __initconst = {
149 .flags = IMXUART_HAVE_RTSCTS,
152 static const struct imxi2c_platform_data moboard_i2c0_data __initconst = {
156 static const struct imxi2c_platform_data moboard_i2c1_data __initconst = {
160 static int moboard_spi1_cs[] = {
165 static const struct spi_imx_master moboard_spi1_pdata __initconst = {
166 .chipselect = moboard_spi1_cs,
167 .num_chipselect = ARRAY_SIZE(moboard_spi1_cs),
170 static struct regulator_consumer_supply sdhc_consumers[] = {
172 .dev_name = "mxc-mmc.0",
173 .supply = "sdhc0_vcc",
176 .dev_name = "mxc-mmc.1",
177 .supply = "sdhc1_vcc",
181 static struct regulator_init_data sdhc_vreg_data = {
185 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
186 REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
187 .valid_modes_mask = REGULATOR_MODE_NORMAL |
192 .num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
193 .consumer_supplies = sdhc_consumers,
196 static struct regulator_consumer_supply cam_consumers[] = {
198 .dev_name = "mx3_camera.0",
203 static struct regulator_init_data cam_vreg_data = {
207 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
208 REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
209 .valid_modes_mask = REGULATOR_MODE_NORMAL |
214 .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
215 .consumer_supplies = cam_consumers,
218 static struct mc13xxx_regulator_init_data moboard_regulators[] = {
220 .id = MC13783_REG_VMMC1,
221 .init_data = &sdhc_vreg_data,
224 .id = MC13783_REG_VCAM,
225 .init_data = &cam_vreg_data,
229 static struct mc13xxx_led_platform_data moboard_led[] = {
231 .id = MC13783_LED_R1,
232 .name = "coreboard-led-4:red",
236 .id = MC13783_LED_G1,
237 .name = "coreboard-led-4:green",
241 .id = MC13783_LED_B1,
242 .name = "coreboard-led-4:blue",
246 .id = MC13783_LED_R2,
247 .name = "coreboard-led-5:red",
251 .id = MC13783_LED_G2,
252 .name = "coreboard-led-5:green",
256 .id = MC13783_LED_B2,
257 .name = "coreboard-led-5:blue",
262 static struct mc13xxx_leds_platform_data moboard_leds = {
263 .num_leds = ARRAY_SIZE(moboard_led),
265 .flags = MC13783_LED_SLEWLIMTC,
266 .abmode = MC13783_LED_AB_DISABLED,
267 .tc1_period = MC13783_LED_PERIOD_10MS,
268 .tc2_period = MC13783_LED_PERIOD_10MS,
271 static struct mc13xxx_buttons_platform_data moboard_buttons = {
272 .b1on_flags = MC13783_BUTTON_DBNC_750MS | MC13783_BUTTON_ENABLE |
273 MC13783_BUTTON_POL_INVERT,
274 .b1on_key = KEY_POWER,
277 static struct mc13xxx_platform_data moboard_pmic = {
279 .regulators = moboard_regulators,
280 .num_regulators = ARRAY_SIZE(moboard_regulators),
282 .leds = &moboard_leds,
283 .buttons = &moboard_buttons,
284 .flags = MC13XXX_USE_RTC | MC13XXX_USE_ADC,
287 static struct spi_board_info moboard_spi_board_info[] __initdata = {
289 .modalias = "mc13783",
290 .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
291 .max_speed_hz = 300000,
294 .platform_data = &moboard_pmic,
299 static int moboard_spi2_cs[] = {
303 static const struct spi_imx_master moboard_spi2_pdata __initconst = {
304 .chipselect = moboard_spi2_cs,
305 .num_chipselect = ARRAY_SIZE(moboard_spi2_cs),
308 #define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
309 #define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
311 static int moboard_sdhc1_get_ro(struct device *dev)
313 return !gpio_get_value(SDHC1_WP);
316 static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
321 ret = gpio_request(SDHC1_CD, "sdhc-detect");
325 gpio_direction_input(SDHC1_CD);
327 ret = gpio_request(SDHC1_WP, "sdhc-wp");
330 gpio_direction_input(SDHC1_WP);
332 ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
333 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
334 "sdhc1-card-detect", data);
336 goto err_gpio_free_2;
348 static void moboard_sdhc1_exit(struct device *dev, void *data)
350 free_irq(gpio_to_irq(SDHC1_CD), data);
355 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
356 .get_ro = moboard_sdhc1_get_ro,
357 .init = moboard_sdhc1_init,
358 .exit = moboard_sdhc1_exit,
362 * this pin is dedicated for all mx31moboard systems, so we do it here
364 #define USB_RESET_B IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
365 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
368 #define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
369 #define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6)
371 static void usb_xcvr_reset(void)
373 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
374 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
375 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG | PAD_CTL_100K_PD);
376 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG | PAD_CTL_100K_PD);
377 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG | PAD_CTL_100K_PD);
378 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG | PAD_CTL_100K_PD);
379 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG | PAD_CTL_100K_PD);
380 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG | PAD_CTL_100K_PD);
381 mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
382 mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
383 mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
384 mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
386 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
387 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
388 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
389 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
390 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
391 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
392 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
393 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
394 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
395 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG | PAD_CTL_100K_PD);
396 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG | PAD_CTL_100K_PD);
397 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
398 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
400 gpio_request(OTG_EN_B, "usb-udc-en");
401 gpio_direction_output(OTG_EN_B, 0);
402 gpio_request(USBH2_EN_B, "usbh2-en");
403 gpio_direction_output(USBH2_EN_B, 0);
405 gpio_request(USB_RESET_B, "usb-reset");
406 gpio_direction_output(USB_RESET_B, 0);
408 gpio_set_value(USB_RESET_B, 1);
412 static int moboard_usbh2_init_hw(struct platform_device *pdev)
414 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
417 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
418 .init = moboard_usbh2_init_hw,
419 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
422 static int __init moboard_usbh2_init(void)
424 struct platform_device *pdev;
426 usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
427 ULPI_OTG_DRVVBUS_EXT);
428 if (!usbh2_pdata.otg)
431 pdev = imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
433 return PTR_ERR(pdev);
438 static const struct gpio_led mx31moboard_leds[] __initconst = {
440 .name = "coreboard-led-0:red:running",
441 .default_trigger = "heartbeat",
442 .gpio = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
444 .name = "coreboard-led-1:red",
445 .gpio = IOMUX_TO_GPIO(MX31_PIN_STX0),
447 .name = "coreboard-led-2:red",
448 .gpio = IOMUX_TO_GPIO(MX31_PIN_SRX0),
450 .name = "coreboard-led-3:red",
451 .gpio = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
455 static const struct gpio_led_platform_data mx31moboard_led_pdata __initconst = {
456 .num_leds = ARRAY_SIZE(mx31moboard_leds),
457 .leds = mx31moboard_leds,
460 static const struct ipu_platform_data mx3_ipu_data __initconst = {
461 .irq_base = MXC_IPU_IRQ_START,
464 static struct platform_device *devices[] __initdata = {
468 static struct mx3_camera_pdata camera_pdata __initdata = {
469 .flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
473 static phys_addr_t mx3_camera_base __initdata;
474 #define MX3_CAMERA_BUF_SIZE SZ_4M
476 static int __init mx31moboard_init_cam(void)
478 int dma, ret = -ENOMEM;
479 struct platform_device *pdev;
481 imx31_add_ipu_core(&mx3_ipu_data);
483 pdev = imx31_alloc_mx3_camera(&camera_pdata);
485 return PTR_ERR(pdev);
487 dma = dma_declare_coherent_memory(&pdev->dev,
488 mx3_camera_base, mx3_camera_base,
490 DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
491 if (!(dma & DMA_MEMORY_MAP))
494 ret = platform_device_add(pdev);
497 platform_device_put(pdev);
503 static void mx31moboard_poweroff(void)
505 struct clk *clk = clk_get_sys("imx2-wdt.0", NULL);
510 mxc_iomux_mode(MX31_PIN_WATCHDOG_RST__WATCHDOG_RST);
512 __raw_writew(1 << 6 | 1 << 2, MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
515 static int mx31moboard_baseboard;
516 core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
519 * Board specific initialization.
521 static void __init mx31moboard_init(void)
525 mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
528 platform_add_devices(devices, ARRAY_SIZE(devices));
529 gpio_led_register_device(-1, &mx31moboard_led_pdata);
531 imx31_add_imx_uart0(&uart0_pdata);
532 imx31_add_imx_uart4(&uart4_pdata);
534 imx31_add_imx_i2c0(&moboard_i2c0_data);
535 imx31_add_imx_i2c1(&moboard_i2c1_data);
537 imx31_add_spi_imx1(&moboard_spi1_pdata);
538 imx31_add_spi_imx2(&moboard_spi2_pdata);
540 gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq");
541 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
542 spi_register_board_info(moboard_spi_board_info,
543 ARRAY_SIZE(moboard_spi_board_info));
545 imx31_add_mxc_mmc(0, &sdhc1_pdata);
547 mx31moboard_init_cam();
551 moboard_usbh2_init();
553 pm_power_off = mx31moboard_poweroff;
555 switch (mx31moboard_baseboard) {
559 mx31moboard_devboard_init();
562 mx31moboard_marxbot_init();
566 mx31moboard_smartbot_init(mx31moboard_baseboard);
569 printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
570 mx31moboard_baseboard);
574 static void __init mx31moboard_timer_init(void)
576 mx31_clocks_init(26000000);
579 struct sys_timer mx31moboard_timer = {
580 .init = mx31moboard_timer_init,
583 static void __init mx31moboard_reserve(void)
585 /* reserve 4 MiB for mx3-camera */
586 mx3_camera_base = memblock_alloc(MX3_CAMERA_BUF_SIZE,
587 MX3_CAMERA_BUF_SIZE);
588 memblock_free(mx3_camera_base, MX3_CAMERA_BUF_SIZE);
589 memblock_remove(mx3_camera_base, MX3_CAMERA_BUF_SIZE);
592 MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
593 /* Maintainer: Valentin Longchamp, EPFL Mobots group */
594 .atag_offset = 0x100,
595 .reserve = mx31moboard_reserve,
596 .map_io = mx31_map_io,
597 .init_early = imx31_init_early,
598 .init_irq = mx31_init_irq,
599 .handle_irq = imx31_handle_irq,
600 .timer = &mx31moboard_timer,
601 .init_machine = mx31moboard_init,