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>
31 #include <linux/usb/otg.h>
32 #include <linux/usb/ulpi.h>
34 #include <asm/mach-types.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/time.h>
37 #include <asm/mach/map.h>
38 #include <mach/board-mx31moboard.h>
39 #include <mach/common.h>
40 #include <mach/hardware.h>
41 #include <mach/iomux-mx3.h>
44 #include <mach/mxc_ehci.h>
45 #include <mach/mx3_camera.h>
47 #include <mach/ulpi.h>
49 #include "devices-imx31.h"
52 static unsigned int moboard_pins[] = {
54 MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
55 MX31_PIN_CTS1__GPIO2_7,
57 MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
58 MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
60 MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
62 MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
64 MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
65 MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
66 MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
67 MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
69 MX31_PIN_GPIO1_0__GPIO1_0,
71 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
72 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
73 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
74 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
75 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
76 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
77 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
78 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
79 MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
80 MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
81 MX31_PIN_USB_OC__GPIO1_30,
83 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
84 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
85 MX31_PIN_STXD3__USBH2_DATA2, MX31_PIN_SRXD3__USBH2_DATA3,
86 MX31_PIN_SCK3__USBH2_DATA4, MX31_PIN_SFS3__USBH2_DATA5,
87 MX31_PIN_STXD6__USBH2_DATA6, MX31_PIN_SRXD6__USBH2_DATA7,
88 MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR,
89 MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP,
90 MX31_PIN_SCK6__GPIO1_25,
92 MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
93 MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
95 MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO,
96 MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
97 MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2,
99 MX31_PIN_GPIO1_3__GPIO1_3,
101 MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO,
102 MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY,
103 MX31_PIN_CSPI2_SS1__CSPI3_SS1,
106 static struct physmap_flash_data mx31moboard_flash_data = {
110 static struct resource mx31moboard_flash_resource = {
113 .flags = IORESOURCE_MEM,
116 static struct platform_device mx31moboard_flash = {
117 .name = "physmap-flash",
120 .platform_data = &mx31moboard_flash_data,
122 .resource = &mx31moboard_flash_resource,
126 static int moboard_uart0_init(struct platform_device *pdev)
128 int ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack");
132 ret = gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0);
134 gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
139 static void moboard_uart0_exit(struct platform_device *pdev)
141 gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
144 static const struct imxuart_platform_data uart0_pdata __initconst = {
145 .init = moboard_uart0_init,
146 .exit = moboard_uart0_exit,
149 static const struct imxuart_platform_data uart4_pdata __initconst = {
150 .flags = IMXUART_HAVE_RTSCTS,
153 static const struct imxi2c_platform_data moboard_i2c0_data __initconst = {
157 static const struct imxi2c_platform_data moboard_i2c1_data __initconst = {
161 static int moboard_spi1_cs[] = {
166 static const struct spi_imx_master moboard_spi1_pdata __initconst = {
167 .chipselect = moboard_spi1_cs,
168 .num_chipselect = ARRAY_SIZE(moboard_spi1_cs),
171 static struct regulator_consumer_supply sdhc_consumers[] = {
173 .dev = &mxcsdhc_device0.dev,
174 .supply = "sdhc0_vcc",
177 .dev = &mxcsdhc_device1.dev,
178 .supply = "sdhc1_vcc",
182 static struct regulator_init_data sdhc_vreg_data = {
186 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
187 REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
188 .valid_modes_mask = REGULATOR_MODE_NORMAL |
193 .num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
194 .consumer_supplies = sdhc_consumers,
197 static struct regulator_consumer_supply cam_consumers[] = {
199 .dev = &mx3_camera.dev,
204 static struct regulator_init_data cam_vreg_data = {
208 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
209 REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
210 .valid_modes_mask = REGULATOR_MODE_NORMAL |
215 .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
216 .consumer_supplies = cam_consumers,
219 static struct mc13783_regulator_init_data moboard_regulators[] = {
221 .id = MC13783_REGU_VMMC1,
222 .init_data = &sdhc_vreg_data,
225 .id = MC13783_REGU_VCAM,
226 .init_data = &cam_vreg_data,
230 static struct mc13783_led_platform_data moboard_led[] = {
232 .id = MC13783_LED_R1,
233 .name = "coreboard-led-4:red",
237 .id = MC13783_LED_G1,
238 .name = "coreboard-led-4:green",
242 .id = MC13783_LED_B1,
243 .name = "coreboard-led-4:blue",
247 .id = MC13783_LED_R2,
248 .name = "coreboard-led-5:red",
252 .id = MC13783_LED_G2,
253 .name = "coreboard-led-5:green",
257 .id = MC13783_LED_B2,
258 .name = "coreboard-led-5:blue",
263 static struct mc13783_leds_platform_data moboard_leds = {
264 .num_leds = ARRAY_SIZE(moboard_led),
266 .flags = MC13783_LED_SLEWLIMTC,
267 .abmode = MC13783_LED_AB_DISABLED,
268 .tc1_period = MC13783_LED_PERIOD_10MS,
269 .tc2_period = MC13783_LED_PERIOD_10MS,
272 static struct mc13783_platform_data moboard_pmic = {
273 .regulators = moboard_regulators,
274 .num_regulators = ARRAY_SIZE(moboard_regulators),
275 .leds = &moboard_leds,
276 .flags = MC13783_USE_REGULATOR | MC13783_USE_RTC |
277 MC13783_USE_ADC | MC13783_USE_LED,
280 static struct spi_board_info moboard_spi_board_info[] __initdata = {
282 .modalias = "mc13783",
283 .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
284 .max_speed_hz = 300000,
287 .platform_data = &moboard_pmic,
292 static int moboard_spi2_cs[] = {
296 static const struct spi_imx_master moboard_spi2_pdata __initconst = {
297 .chipselect = moboard_spi2_cs,
298 .num_chipselect = ARRAY_SIZE(moboard_spi2_cs),
301 #define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
302 #define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
304 static int moboard_sdhc1_get_ro(struct device *dev)
306 return !gpio_get_value(SDHC1_WP);
309 static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
314 ret = gpio_request(SDHC1_CD, "sdhc-detect");
318 gpio_direction_input(SDHC1_CD);
320 ret = gpio_request(SDHC1_WP, "sdhc-wp");
323 gpio_direction_input(SDHC1_WP);
325 ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
326 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
327 "sdhc1-card-detect", data);
329 goto err_gpio_free_2;
341 static void moboard_sdhc1_exit(struct device *dev, void *data)
343 free_irq(gpio_to_irq(SDHC1_CD), data);
348 static struct imxmmc_platform_data sdhc1_pdata = {
349 .get_ro = moboard_sdhc1_get_ro,
350 .init = moboard_sdhc1_init,
351 .exit = moboard_sdhc1_exit,
355 * this pin is dedicated for all mx31moboard systems, so we do it here
357 #define USB_RESET_B IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
358 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
361 #define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
362 #define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6)
364 static void usb_xcvr_reset(void)
366 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
367 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
368 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG | PAD_CTL_100K_PD);
369 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG | PAD_CTL_100K_PD);
370 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG | PAD_CTL_100K_PD);
371 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG | PAD_CTL_100K_PD);
372 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG | PAD_CTL_100K_PD);
373 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG | PAD_CTL_100K_PD);
374 mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
375 mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
376 mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
377 mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
379 mxc_iomux_set_gpr(MUX_PGP_UH2, true);
380 mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
381 mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
382 mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
383 mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
384 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
385 mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
386 mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
387 mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
388 mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG | PAD_CTL_100K_PD);
389 mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG | PAD_CTL_100K_PD);
390 mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
391 mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
393 gpio_request(OTG_EN_B, "usb-udc-en");
394 gpio_direction_output(OTG_EN_B, 0);
395 gpio_request(USBH2_EN_B, "usbh2-en");
396 gpio_direction_output(USBH2_EN_B, 0);
398 gpio_request(USB_RESET_B, "usb-reset");
399 gpio_direction_output(USB_RESET_B, 0);
401 gpio_set_value(USB_RESET_B, 1);
405 #if defined(CONFIG_USB_ULPI)
407 static struct mxc_usbh_platform_data usbh2_pdata = {
408 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
409 .flags = MXC_EHCI_POWER_PINS_ENABLED,
412 static int __init moboard_usbh2_init(void)
414 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
415 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
417 return mxc_register_device(&mxc_usbh2, &usbh2_pdata);
420 static inline int moboard_usbh2_init(void) { return 0; }
424 static struct gpio_led mx31moboard_leds[] = {
426 .name = "coreboard-led-0:red:running",
427 .default_trigger = "heartbeat",
428 .gpio = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
430 .name = "coreboard-led-1:red",
431 .gpio = IOMUX_TO_GPIO(MX31_PIN_STX0),
433 .name = "coreboard-led-2:red",
434 .gpio = IOMUX_TO_GPIO(MX31_PIN_SRX0),
436 .name = "coreboard-led-3:red",
437 .gpio = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
441 static struct gpio_led_platform_data mx31moboard_led_pdata = {
442 .num_leds = ARRAY_SIZE(mx31moboard_leds),
443 .leds = mx31moboard_leds,
446 static struct platform_device mx31moboard_leds_device = {
450 .platform_data = &mx31moboard_led_pdata,
454 static struct ipu_platform_data mx3_ipu_data = {
455 .irq_base = MXC_IPU_IRQ_START,
458 static struct platform_device *devices[] __initdata = {
460 &mx31moboard_leds_device,
463 static struct mx3_camera_pdata camera_pdata = {
464 .dma_dev = &mx3_ipu.dev,
465 .flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
469 #define CAMERA_BUF_SIZE (4*1024*1024)
471 static int __init mx31moboard_cam_alloc_dma(const size_t buf_size)
473 dma_addr_t dma_handle;
477 if (buf_size < 2 * 1024 * 1024)
480 buf = dma_alloc_coherent(NULL, buf_size, &dma_handle, GFP_KERNEL);
482 pr_err("%s: cannot allocate camera buffer-memory\n", __func__);
486 memset(buf, 0, buf_size);
488 dma = dma_declare_coherent_memory(&mx3_camera.dev,
489 dma_handle, dma_handle, buf_size,
490 DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
492 /* The way we call dma_declare_coherent_memory only a malloc can fail */
493 return dma & DMA_MEMORY_MAP ? 0 : -ENOMEM;
496 static int mx31moboard_baseboard;
497 core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
500 * Board specific initialization.
502 static void __init mxc_board_init(void)
504 mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
507 platform_add_devices(devices, ARRAY_SIZE(devices));
509 imx31_add_imx_uart0(&uart0_pdata);
510 imx31_add_imx_uart4(&uart4_pdata);
512 imx31_add_imx_i2c0(&moboard_i2c0_data);
513 imx31_add_imx_i2c1(&moboard_i2c1_data);
515 imx31_add_spi_imx1(&moboard_spi1_pdata);
516 imx31_add_spi_imx2(&moboard_spi2_pdata);
518 gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq");
519 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
520 spi_register_board_info(moboard_spi_board_info,
521 ARRAY_SIZE(moboard_spi_board_info));
523 mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);
525 mxc_register_device(&mx3_ipu, &mx3_ipu_data);
526 if (!mx31moboard_cam_alloc_dma(CAMERA_BUF_SIZE))
527 mxc_register_device(&mx3_camera, &camera_pdata);
531 moboard_usbh2_init();
533 switch (mx31moboard_baseboard) {
537 mx31moboard_devboard_init();
540 mx31moboard_marxbot_init();
544 mx31moboard_smartbot_init(mx31moboard_baseboard);
547 printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
548 mx31moboard_baseboard);
552 static void __init mx31moboard_timer_init(void)
554 mx31_clocks_init(26000000);
557 struct sys_timer mx31moboard_timer = {
558 .init = mx31moboard_timer_init,
561 MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
562 /* Maintainer: Valentin Longchamp, EPFL Mobots group */
563 .phys_io = MX31_AIPS1_BASE_ADDR,
564 .io_pg_offst = (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc,
565 .boot_params = MX3x_PHYS_OFFSET + 0x100,
566 .map_io = mx31_map_io,
567 .init_irq = mx31_init_irq,
568 .init_machine = mxc_board_init,
569 .timer = &mx31moboard_timer,