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-rw-r--r--arch/arm/mach-mx3/mach-mx31moboard.c551
1 files changed, 551 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/mach-mx31moboard.c b/arch/arm/mach-mx3/mach-mx31moboard.c
new file mode 100644
index 0000000..a7dc519
--- /dev/null
+++ b/arch/arm/mach-mx3/mach-mx31moboard.c
@@ -0,0 +1,551 @@
+/*
+ * Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/fsl_devices.h>
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/leds.h>
+#include <linux/memory.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/partitions.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/mc13783.h>
+#include <linux/spi/spi.h>
+#include <linux/types.h>
+
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/mach/map.h>
+#include <mach/board-mx31moboard.h>
+#include <mach/common.h>
+#include <mach/hardware.h>
+#include <mach/imx-uart.h>
+#include <mach/iomux-mx3.h>
+#include <mach/ipu.h>
+#include <mach/i2c.h>
+#include <mach/mmc.h>
+#include <mach/mxc_ehci.h>
+#include <mach/mx3_camera.h>
+#include <mach/spi.h>
+#include <mach/ulpi.h>
+
+#include "devices.h"
+
+static unsigned int moboard_pins[] = {
+ /* UART0 */
+ MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
+ MX31_PIN_CTS1__GPIO2_7,
+ /* UART4 */
+ MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
+ MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
+ /* I2C0 */
+ MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
+ /* I2C1 */
+ MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
+ /* SDHC1 */
+ MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
+ MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
+ MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
+ MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
+ /* USB reset */
+ MX31_PIN_GPIO1_0__GPIO1_0,
+ /* USB OTG */
+ MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
+ MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
+ MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
+ MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
+ MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
+ MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
+ MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
+ MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
+ MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
+ MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
+ MX31_PIN_USB_OC__GPIO1_30,
+ /* USB H2 */
+ MX31_PIN_USBH2_DATA0__USBH2_DATA0,
+ MX31_PIN_USBH2_DATA1__USBH2_DATA1,
+ MX31_PIN_STXD3__USBH2_DATA2, MX31_PIN_SRXD3__USBH2_DATA3,
+ MX31_PIN_SCK3__USBH2_DATA4, MX31_PIN_SFS3__USBH2_DATA5,
+ MX31_PIN_STXD6__USBH2_DATA6, MX31_PIN_SRXD6__USBH2_DATA7,
+ MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR,
+ MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP,
+ MX31_PIN_SCK6__GPIO1_25,
+ /* LEDs */
+ MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
+ MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
+ /* SPI1 */
+ MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO,
+ MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
+ MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2,
+ /* Atlas IRQ */
+ MX31_PIN_GPIO1_3__GPIO1_3,
+ /* SPI2 */
+ MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO,
+ MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY,
+ MX31_PIN_CSPI2_SS1__CSPI3_SS1,
+};
+
+static struct physmap_flash_data mx31moboard_flash_data = {
+ .width = 2,
+};
+
+static struct resource mx31moboard_flash_resource = {
+ .start = 0xa0000000,
+ .end = 0xa1ffffff,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device mx31moboard_flash = {
+ .name = "physmap-flash",
+ .id = 0,
+ .dev = {
+ .platform_data = &mx31moboard_flash_data,
+ },
+ .resource = &mx31moboard_flash_resource,
+ .num_resources = 1,
+};
+
+static int moboard_uart0_init(struct platform_device *pdev)
+{
+ gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack");
+ gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0);
+ return 0;
+}
+
+static struct imxuart_platform_data uart0_pdata = {
+ .init = moboard_uart0_init,
+};
+
+static struct imxuart_platform_data uart4_pdata = {
+ .flags = IMXUART_HAVE_RTSCTS,
+};
+
+static struct imxi2c_platform_data moboard_i2c0_pdata = {
+ .bitrate = 400000,
+};
+
+static struct imxi2c_platform_data moboard_i2c1_pdata = {
+ .bitrate = 100000,
+};
+
+static int moboard_spi1_cs[] = {
+ MXC_SPI_CS(0),
+ MXC_SPI_CS(2),
+};
+
+static struct spi_imx_master moboard_spi1_master = {
+ .chipselect = moboard_spi1_cs,
+ .num_chipselect = ARRAY_SIZE(moboard_spi1_cs),
+};
+
+static struct regulator_consumer_supply sdhc_consumers[] = {
+ {
+ .dev = &mxcsdhc_device0.dev,
+ .supply = "sdhc0_vcc",
+ },
+ {
+ .dev = &mxcsdhc_device1.dev,
+ .supply = "sdhc1_vcc",
+ },
+};
+
+static struct regulator_init_data sdhc_vreg_data = {
+ .constraints = {
+ .min_uV = 2700000,
+ .max_uV = 3000000,
+ .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+ REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL |
+ REGULATOR_MODE_FAST,
+ .always_on = 0,
+ .boot_on = 1,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
+ .consumer_supplies = sdhc_consumers,
+};
+
+static struct regulator_consumer_supply cam_consumers[] = {
+ {
+ .dev = &mx3_camera.dev,
+ .supply = "cam_vcc",
+ },
+};
+
+static struct regulator_init_data cam_vreg_data = {
+ .constraints = {
+ .min_uV = 2700000,
+ .max_uV = 3000000,
+ .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+ REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL |
+ REGULATOR_MODE_FAST,
+ .always_on = 0,
+ .boot_on = 1,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
+ .consumer_supplies = cam_consumers,
+};
+
+static struct mc13783_regulator_init_data moboard_regulators[] = {
+ {
+ .id = MC13783_REGU_VMMC1,
+ .init_data = &sdhc_vreg_data,
+ },
+ {
+ .id = MC13783_REGU_VCAM,
+ .init_data = &cam_vreg_data,
+ },
+};
+
+static struct mc13783_platform_data moboard_pmic = {
+ .regulators = moboard_regulators,
+ .num_regulators = ARRAY_SIZE(moboard_regulators),
+ .flags = MC13783_USE_REGULATOR | MC13783_USE_RTC |
+ MC13783_USE_ADC,
+};
+
+static struct spi_board_info moboard_spi_board_info[] __initdata = {
+ {
+ .modalias = "mc13783",
+ .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
+ .max_speed_hz = 300000,
+ .bus_num = 1,
+ .chip_select = 0,
+ .platform_data = &moboard_pmic,
+ .mode = SPI_CS_HIGH,
+ },
+};
+
+static int moboard_spi2_cs[] = {
+ MXC_SPI_CS(1),
+};
+
+static struct spi_imx_master moboard_spi2_master = {
+ .chipselect = moboard_spi2_cs,
+ .num_chipselect = ARRAY_SIZE(moboard_spi2_cs),
+};
+
+#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
+#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
+
+static int moboard_sdhc1_get_ro(struct device *dev)
+{
+ return !gpio_get_value(SDHC1_WP);
+}
+
+static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
+ void *data)
+{
+ int ret;
+
+ ret = gpio_request(SDHC1_CD, "sdhc-detect");
+ if (ret)
+ return ret;
+
+ gpio_direction_input(SDHC1_CD);
+
+ ret = gpio_request(SDHC1_WP, "sdhc-wp");
+ if (ret)
+ goto err_gpio_free;
+ gpio_direction_input(SDHC1_WP);
+
+ ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ "sdhc1-card-detect", data);
+ if (ret)
+ goto err_gpio_free_2;
+
+ return 0;
+
+err_gpio_free_2:
+ gpio_free(SDHC1_WP);
+err_gpio_free:
+ gpio_free(SDHC1_CD);
+
+ return ret;
+}
+
+static void moboard_sdhc1_exit(struct device *dev, void *data)
+{
+ free_irq(gpio_to_irq(SDHC1_CD), data);
+ gpio_free(SDHC1_WP);
+ gpio_free(SDHC1_CD);
+}
+
+static struct imxmmc_platform_data sdhc1_pdata = {
+ .get_ro = moboard_sdhc1_get_ro,
+ .init = moboard_sdhc1_init,
+ .exit = moboard_sdhc1_exit,
+};
+
+/*
+ * this pin is dedicated for all mx31moboard systems, so we do it here
+ */
+#define USB_RESET_B IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
+
+static void usb_xcvr_reset(void)
+{
+ gpio_request(USB_RESET_B, "usb-reset");
+ gpio_direction_output(USB_RESET_B, 0);
+ mdelay(1);
+ gpio_set_value(USB_RESET_B, 1);
+}
+
+#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
+ PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
+
+#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
+
+static void moboard_usbotg_init(void)
+{
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
+
+ gpio_request(OTG_EN_B, "usb-udc-en");
+ gpio_direction_output(OTG_EN_B, 0);
+}
+
+static struct fsl_usb2_platform_data usb_pdata = {
+ .operating_mode = FSL_USB2_DR_DEVICE,
+ .phy_mode = FSL_USB2_PHY_ULPI,
+};
+
+#if defined(CONFIG_USB_ULPI)
+
+#define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6)
+
+static int moboard_usbh2_hw_init(struct platform_device *pdev)
+{
+ int ret;
+
+ mxc_iomux_set_gpr(MUX_PGP_UH2, true);
+
+ mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
+ mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
+
+ ret = gpio_request(USBH2_EN_B, "usbh2-en");
+ if (ret)
+ return ret;
+ gpio_direction_output(USBH2_EN_B, 0);
+
+ return 0;
+}
+
+static int moboard_usbh2_hw_exit(struct platform_device *pdev)
+{
+ gpio_free(USBH2_EN_B);
+ return 0;
+}
+
+static struct mxc_usbh_platform_data usbh2_pdata = {
+ .init = moboard_usbh2_hw_init,
+ .exit = moboard_usbh2_hw_exit,
+ .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
+ .flags = MXC_EHCI_POWER_PINS_ENABLED,
+};
+
+static int __init moboard_usbh2_init(void)
+{
+ usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
+ USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
+
+ return mxc_register_device(&mxc_usbh2, &usbh2_pdata);
+}
+#else
+static inline int moboard_usbh2_init(void) { return 0; }
+#endif
+
+
+static struct gpio_led mx31moboard_leds[] = {
+ {
+ .name = "coreboard-led-0:red:running",
+ .default_trigger = "heartbeat",
+ .gpio = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
+ }, {
+ .name = "coreboard-led-1:red",
+ .gpio = IOMUX_TO_GPIO(MX31_PIN_STX0),
+ }, {
+ .name = "coreboard-led-2:red",
+ .gpio = IOMUX_TO_GPIO(MX31_PIN_SRX0),
+ }, {
+ .name = "coreboard-led-3:red",
+ .gpio = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
+ },
+};
+
+static struct gpio_led_platform_data mx31moboard_led_pdata = {
+ .num_leds = ARRAY_SIZE(mx31moboard_leds),
+ .leds = mx31moboard_leds,
+};
+
+static struct platform_device mx31moboard_leds_device = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = &mx31moboard_led_pdata,
+ },
+};
+
+static struct ipu_platform_data mx3_ipu_data = {
+ .irq_base = MXC_IPU_IRQ_START,
+};
+
+static struct platform_device *devices[] __initdata = {
+ &mx31moboard_flash,
+ &mx31moboard_leds_device,
+};
+
+static struct mx3_camera_pdata camera_pdata = {
+ .dma_dev = &mx3_ipu.dev,
+ .flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
+ .mclk_10khz = 4800,
+};
+
+#define CAMERA_BUF_SIZE (4*1024*1024)
+
+static int __init mx31moboard_cam_alloc_dma(const size_t buf_size)
+{
+ dma_addr_t dma_handle;
+ void *buf;
+ int dma;
+
+ if (buf_size < 2 * 1024 * 1024)
+ return -EINVAL;
+
+ buf = dma_alloc_coherent(NULL, buf_size, &dma_handle, GFP_KERNEL);
+ if (!buf) {
+ pr_err("%s: cannot allocate camera buffer-memory\n", __func__);
+ return -ENOMEM;
+ }
+
+ memset(buf, 0, buf_size);
+
+ dma = dma_declare_coherent_memory(&mx3_camera.dev,
+ dma_handle, dma_handle, buf_size,
+ DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
+
+ /* The way we call dma_declare_coherent_memory only a malloc can fail */
+ return dma & DMA_MEMORY_MAP ? 0 : -ENOMEM;
+}
+
+static int mx31moboard_baseboard;
+core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
+
+/*
+ * Board specific initialization.
+ */
+static void __init mxc_board_init(void)
+{
+ mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
+ "moboard");
+
+ platform_add_devices(devices, ARRAY_SIZE(devices));
+
+ mxc_register_device(&mxc_uart_device0, &uart0_pdata);
+
+ mxc_register_device(&mxc_uart_device4, &uart4_pdata);
+
+ mxc_register_device(&mxc_i2c_device0, &moboard_i2c0_pdata);
+ mxc_register_device(&mxc_i2c_device1, &moboard_i2c1_pdata);
+
+ mxc_register_device(&mxc_spi_device1, &moboard_spi1_master);
+ mxc_register_device(&mxc_spi_device2, &moboard_spi2_master);
+
+ gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq");
+ gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
+ spi_register_board_info(moboard_spi_board_info,
+ ARRAY_SIZE(moboard_spi_board_info));
+
+ mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);
+
+ mxc_register_device(&mx3_ipu, &mx3_ipu_data);
+ if (!mx31moboard_cam_alloc_dma(CAMERA_BUF_SIZE))
+ mxc_register_device(&mx3_camera, &camera_pdata);
+
+ usb_xcvr_reset();
+
+ moboard_usbotg_init();
+ mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
+ moboard_usbh2_init();
+
+ switch (mx31moboard_baseboard) {
+ case MX31NOBOARD:
+ break;
+ case MX31DEVBOARD:
+ mx31moboard_devboard_init();
+ break;
+ case MX31MARXBOT:
+ mx31moboard_marxbot_init();
+ break;
+ case MX31SMARTBOT:
+ mx31moboard_smartbot_init();
+ break;
+ default:
+ printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
+ mx31moboard_baseboard);
+ }
+}
+
+static void __init mx31moboard_timer_init(void)
+{
+ mx31_clocks_init(26000000);
+}
+
+struct sys_timer mx31moboard_timer = {
+ .init = mx31moboard_timer_init,
+};
+
+MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
+ /* Maintainer: Valentin Longchamp, EPFL Mobots group */
+ .phys_io = MX31_AIPS1_BASE_ADDR,
+ .io_pg_offst = (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc,
+ .boot_params = MX3x_PHYS_OFFSET + 0x100,
+ .map_io = mx31_map_io,
+ .init_irq = mx31_init_irq,
+ .init_machine = mxc_board_init,
+ .timer = &mx31moboard_timer,
+MACHINE_END
+
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