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>
43 #include <mach/mx3_camera.h>
45 #include <mach/ulpi.h>
47 #include "devices-imx31.h"
50 static unsigned int moboard_pins[] = {
52 MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
53 MX31_PIN_CTS1__GPIO2_7,
55 MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
56 MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
58 MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
60 MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
62 MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
63 MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
64 MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
65 MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
67 MX31_PIN_GPIO1_0__GPIO1_0,
69 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
70 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
71 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
72 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
73 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
74 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
75 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
76 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
77 MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
78 MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
79 MX31_PIN_USB_OC__GPIO1_30,
81 MX31_PIN_USBH2_DATA0__USBH2_DATA0,
82 MX31_PIN_USBH2_DATA1__USBH2_DATA1,
83 MX31_PIN_STXD3__USBH2_DATA2, MX31_PIN_SRXD3__USBH2_DATA3,
84 MX31_PIN_SCK3__USBH2_DATA4, MX31_PIN_SFS3__USBH2_DATA5,
85 MX31_PIN_STXD6__USBH2_DATA6, MX31_PIN_SRXD6__USBH2_DATA7,
86 MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR,
87 MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP,
88 MX31_PIN_SCK6__GPIO1_25,
90 MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
91 MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
93 MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO,
94 MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
95 MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2,
97 MX31_PIN_GPIO1_3__GPIO1_3,
99 MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO,
100 MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY,
101 MX31_PIN_CSPI2_SS1__CSPI3_SS1,
104 static struct physmap_flash_data mx31moboard_flash_data = {
108 static struct resource mx31moboard_flash_resource = {
111 .flags = IORESOURCE_MEM,
114 static struct platform_device mx31moboard_flash = {
115 .name = "physmap-flash",
118 .platform_data = &mx31moboard_flash_data,
120 .resource = &mx31moboard_flash_resource,
124 static int moboard_uart0_init(struct platform_device *pdev)
126 int ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack");
130 ret = gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0);
132 gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
137 static void moboard_uart0_exit(struct platform_device *pdev)
139 gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
142 static const struct imxuart_platform_data uart0_pdata __initconst = {
143 .init = moboard_uart0_init,
144 .exit = moboard_uart0_exit,
147 static const struct imxuart_platform_data uart4_pdata __initconst = {
148 .flags = IMXUART_HAVE_RTSCTS,
151 static const struct imxi2c_platform_data moboard_i2c0_data __initconst = {
155 static const struct imxi2c_platform_data moboard_i2c1_data __initconst = {
159 static int moboard_spi1_cs[] = {
164 static const struct spi_imx_master moboard_spi1_pdata __initconst = {
165 .chipselect = moboard_spi1_cs,
166 .num_chipselect = ARRAY_SIZE(moboard_spi1_cs),
169 static struct regulator_consumer_supply sdhc_consumers[] = {
171 .dev_name = "mxc-mmc.0",
172 .supply = "sdhc0_vcc",
175 .dev_name = "mxc-mmc.1",
176 .supply = "sdhc1_vcc",
180 static struct regulator_init_data sdhc_vreg_data = {
184 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
185 REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
186 .valid_modes_mask = REGULATOR_MODE_NORMAL |
191 .num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
192 .consumer_supplies = sdhc_consumers,
195 static struct regulator_consumer_supply cam_consumers[] = {
197 .dev = &mx3_camera.dev,
202 static struct regulator_init_data cam_vreg_data = {
206 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
207 REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
208 .valid_modes_mask = REGULATOR_MODE_NORMAL |
213 .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
214 .consumer_supplies = cam_consumers,
217 static struct mc13xxx_regulator_init_data moboard_regulators[] = {
219 .id = MC13783_REG_VMMC1,
220 .init_data = &sdhc_vreg_data,
223 .id = MC13783_REG_VCAM,
224 .init_data = &cam_vreg_data,
228 static struct mc13783_led_platform_data moboard_led[] = {
230 .id = MC13783_LED_R1,
231 .name = "coreboard-led-4:red",
235 .id = MC13783_LED_G1,
236 .name = "coreboard-led-4:green",
240 .id = MC13783_LED_B1,
241 .name = "coreboard-led-4:blue",
245 .id = MC13783_LED_R2,
246 .name = "coreboard-led-5:red",
250 .id = MC13783_LED_G2,
251 .name = "coreboard-led-5:green",
255 .id = MC13783_LED_B2,
256 .name = "coreboard-led-5:blue",
261 static struct mc13783_leds_platform_data moboard_leds = {
262 .num_leds = ARRAY_SIZE(moboard_led),
264 .flags = MC13783_LED_SLEWLIMTC,
265 .abmode = MC13783_LED_AB_DISABLED,
266 .tc1_period = MC13783_LED_PERIOD_10MS,
267 .tc2_period = MC13783_LED_PERIOD_10MS,
270 static struct mc13xxx_platform_data moboard_pmic = {
272 .regulators = moboard_regulators,
273 .num_regulators = ARRAY_SIZE(moboard_regulators),
275 .leds = &moboard_leds,
276 .flags = MC13XXX_USE_REGULATOR | MC13XXX_USE_RTC |
277 MC13XXX_USE_ADC | MC13XXX_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 const struct imxmmc_platform_data sdhc1_pdata __initconst = {
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 static int moboard_usbh2_init_hw(struct platform_device *pdev)
407 return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
410 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
411 .init = moboard_usbh2_init_hw,
412 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
415 static int __init moboard_usbh2_init(void)
417 struct platform_device *pdev;
419 usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
420 ULPI_OTG_DRVVBUS_EXT);
421 if (!usbh2_pdata.otg)
424 pdev = imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
426 return PTR_ERR(pdev);
431 static struct gpio_led mx31moboard_leds[] = {
433 .name = "coreboard-led-0:red:running",
434 .default_trigger = "heartbeat",
435 .gpio = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
437 .name = "coreboard-led-1:red",
438 .gpio = IOMUX_TO_GPIO(MX31_PIN_STX0),
440 .name = "coreboard-led-2:red",
441 .gpio = IOMUX_TO_GPIO(MX31_PIN_SRX0),
443 .name = "coreboard-led-3:red",
444 .gpio = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
448 static struct gpio_led_platform_data mx31moboard_led_pdata = {
449 .num_leds = ARRAY_SIZE(mx31moboard_leds),
450 .leds = mx31moboard_leds,
453 static struct platform_device mx31moboard_leds_device = {
457 .platform_data = &mx31moboard_led_pdata,
461 static struct ipu_platform_data mx3_ipu_data = {
462 .irq_base = MXC_IPU_IRQ_START,
465 static struct platform_device *devices[] __initdata = {
467 &mx31moboard_leds_device,
470 static struct mx3_camera_pdata camera_pdata = {
471 .dma_dev = &mx3_ipu.dev,
472 .flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
476 #define CAMERA_BUF_SIZE (4*1024*1024)
478 static int __init mx31moboard_cam_alloc_dma(const size_t buf_size)
480 dma_addr_t dma_handle;
484 if (buf_size < 2 * 1024 * 1024)
487 buf = dma_alloc_coherent(NULL, buf_size, &dma_handle, GFP_KERNEL);
489 pr_err("%s: cannot allocate camera buffer-memory\n", __func__);
493 memset(buf, 0, buf_size);
495 dma = dma_declare_coherent_memory(&mx3_camera.dev,
496 dma_handle, dma_handle, buf_size,
497 DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
499 /* The way we call dma_declare_coherent_memory only a malloc can fail */
500 return dma & DMA_MEMORY_MAP ? 0 : -ENOMEM;
503 static int mx31moboard_baseboard;
504 core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
507 * Board specific initialization.
509 static void __init mx31moboard_init(void)
511 mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
514 platform_add_devices(devices, ARRAY_SIZE(devices));
516 imx31_add_imx_uart0(&uart0_pdata);
517 imx31_add_imx_uart4(&uart4_pdata);
519 imx31_add_imx_i2c0(&moboard_i2c0_data);
520 imx31_add_imx_i2c1(&moboard_i2c1_data);
522 imx31_add_spi_imx1(&moboard_spi1_pdata);
523 imx31_add_spi_imx2(&moboard_spi2_pdata);
525 gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq");
526 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
527 spi_register_board_info(moboard_spi_board_info,
528 ARRAY_SIZE(moboard_spi_board_info));
530 imx31_add_mxc_mmc(0, &sdhc1_pdata);
532 mxc_register_device(&mx3_ipu, &mx3_ipu_data);
533 if (!mx31moboard_cam_alloc_dma(CAMERA_BUF_SIZE))
534 mxc_register_device(&mx3_camera, &camera_pdata);
538 moboard_usbh2_init();
540 switch (mx31moboard_baseboard) {
544 mx31moboard_devboard_init();
547 mx31moboard_marxbot_init();
551 mx31moboard_smartbot_init(mx31moboard_baseboard);
554 printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
555 mx31moboard_baseboard);
559 static void __init mx31moboard_timer_init(void)
561 mx31_clocks_init(26000000);
564 struct sys_timer mx31moboard_timer = {
565 .init = mx31moboard_timer_init,
568 MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
569 /* Maintainer: Valentin Longchamp, EPFL Mobots group */
570 .boot_params = MX3x_PHYS_OFFSET + 0x100,
571 .map_io = mx31_map_io,
572 .init_early = imx31_init_early,
573 .init_irq = mx31_init_irq,
574 .timer = &mx31moboard_timer,
575 .init_machine = mx31moboard_init,