This feature has been enabled for DRA7XX, running Linux on the A15 and BIOS on the IPUs.This article describes the boot sequence with Early Boot, details to enable it, and potential issues you may encounter.A BIOS update might be all a user needs resolve them.Though it's not without hazards, the process is fairly easy. Copy the updated BIOS file to floppy disk or USB drive. When the DOS prompt appears, type the following: afudos /i[name of BIOS file]For example, "p4c800b.rom" might be the name of the new BIOS file.(Note: BIOS file and boot files should fit on a floppy disk. "afudos /ip4c800b.rom" is the command that will install it. Your monitor will display the update's progress with a series of messages: "Reading file," then "Erasing flash," then "Writing flash." The "writing flash" message will be followed with a percentage counter that tells you how far the write has proceeded.If the BIOS file is too large to fit with boot files, consider using the EZ Flash method described below.)Insert the motherboard support CD into optical drive. The final message will be "Verifying flash." DO NOT switch off or reboot at any point in this process or you will ruin your motherboard.Also, make sure the name of the IPU binary that you want to load is also changed to the correct name.For the name of the IPU binary, change the config CONFIG_SPL_FAT_LOAD_IPU_PAYLOAD_NAME.
Enter the BIOS Menu and load "Setup Default."Reboot. If it isn't installed already, install the ASUS Update utility.You could enable the corresponding flags (both at kernel and u-boot) to use the functionality for IPU2.To enable the feature for IPU1, kindly replace the config "CONFIG_LATE_ATTACH_BOOTIPU2" -- "CONFIG_LATE_ATTACH_BOOTIPU1" in the file and change the undef to define for the late attach config.The Phaser Sandbox allows you to code games in your browser without having to download or install anything.
The powerful editor features Phaser code assists, Java Script snippets and lots of the features you've come to love in editors like Sublime and Brackets.This way, both cores independently boot, and the RTOS-running cores can enable functionality very early. In this peer-to-peer configuration, once both HLOS and RTOS cores have independently booted and are ready to communicate with each other, they can establish a communication path.