When using it in U-Boot, it is set to Client mode by default and you can change it to Host mode by setting the following environment variable: On VAR-MX6CustomBoard the micro-USB port is not a fully native OTG - it supports either Client or Host mode. What it actually does is use the hdmidet command to detect the hdmi and automatically add " to bootargs, accordingly.ġ.5 Host/Client mode on VAR-MX6CustomBoard's micro-USB port If an HDMI screen is connected to the board, it will auto-detect it on boot and use it as its display.
#U boot splash Pc#
#U boot splash mac#
Usbnet_hostaddr - The virtual MAC address of the host (the PC side).Įthprime - Sets the primary Ethernet interface. Usbnet_devaddr - The virtual MAC address of the device (the board side). Now you should have a new Ethernet interface called usb_ether.īefore actually using it you should get to know the following environment variables: To enable it, you need to un-comment the defines of the following configs in include/configs/m圆var_som.h in the U-Boot source code: This is especially useful if you build a custom board without an Ethernet interface and you want to boot via network using TFTP.
The USB Ethernet gadget allows you to make the board act as a USB Ethernet device when connecting its USB OTG/Client port to a host PC using a USB cable.īasically, it allows for "Ethernet over USB".
#U boot splash windows#
Note: You should use a Linux PC host as Windows can't naturally read ext file systems. To exit the ums command and disconnect the USB device press ctrl+c. If not, you can use dmesg to see the names of the device and its partitions (it should be in the form of /dev/sdXX) and mount them yourself. On a DART-MX6 SOM when booting from eMMC:ĭepending on your host PC, it may automatically mount it or not. On a DART-MX6 SOM when booting from SD card: To do this you need to connect a USB cable between the OTG/Client port of the board and a regular USB Host port on your PC, and use U-Boot's ums command.ĭevtype can be any block device (e.g. This is especially useful for updating the internal eMMC. You can even use it to flash a new U-Boot, re-partition the storage, re-format it, etc.
#U boot splash full#
You will be able to access all the partitions of any block device that is on the board or connected to it, from your host PC - You will see them as /dev/sdXX, just like connecting a regular USB storage to your PC, and you'll be able to mount them, and have full read/write access to them. You can use the board as a USB Mass Storage device: If you want to add support for a different LCD that is not currently supported, you need to edit the displays array in board/variscite/m圆var_som/m圆var_som.c in the U-Boot source code, according to your LCD parameters. There is support for the three different 800x480 LCD screen types that Variscite uses.
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