This repository contains code in support of iot device emulation for ceftb. Currently this includes
- Linux kernel build automation for versatile express platform
- u-boot build automation for qemu-system-aarch64:vexpress-a9:cortex-a9
- scripts to launch qemu-aarch64:vexpress-a15:coretex-a53 with u-boot bootloader
Before building, make sure the following dependencies are installed. The process has been tested on 64-bit Ubuntu 16.04 multiarch system.
First make sure you can run a 32-bit executable file on a 64-bit multi-architecture Ubuntu system.
- sudo dpkg --add-architecture i386
- sudo apt-get update
- sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386
- sudo apt-get install multiarch-support
Next install GNU bc arbitrary precision calculator language
- sudo apt-get install bc
Next install companion tools for Das U-Boot bootloader
- sudo apt-get install u-boot-tools
Now you can run the following make command for the building process
- make prepare-a9
For instant satisfaction
RAWBOOT=1 make run-a9
For U-Boot
make run-a9
Right now this will just dump you into the u-boot console. You will need to execute the following commands ftw.
setenv ker_addr_r 0x60008000
setenv ftd_addr_r 0x61008000
fatload mmc 0:1 ${ker_addr_r} uImage
fatload mmc 0:1 ${ftd_addr_r} vexpress-v2p-ca9.dtb
setenv bootargs "earlyprintk mem=1024M maxcpus=1 console=ttyAMA0 root=/dev/mmcblk0p2 rw rootwait panic=10"
bootm ${ker_addr_r} - ${ftd_addr_r}
In a different terminal (assuming you ahve no other qemu-system-arms running)
pkill -f qemu-system-arm