Building VIBE2 Boot Image
From Yantrr Wiki
Note : All steps are executed on the Ubuntu 16.04.2 LTS and as a root user. Most of the steps are similar Robert C Nelson BBB Wiki.
Contents
Basic Requirements
- Running a recent release of Debian, Fedora or Ubuntu; without OS Virtualization Software.
- ARM Cross Compiler – Linaro: http://www.linaro.org
- Linaro Toolchain Binaries: http://www.linaro.org/downloads/
- Bootloader
- Das U-Boot – the Universal Boot Loader: http://www.denx.de/wiki/U-Boot
- Source: http://git.denx.de/?p=u-boot.git;a=summary
- Linux Kernel
- Linus's Mainline tree: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git
- ARM based rootfs
- Debian : http://www.debian.org/
- Ubuntu: http://www.ubuntu.com
ARM Cross Compiler: GCC
Download and extract the ARM Cross compiler linaro gcc.
~/
wget -c https://releases.linaro.org/components/toolchain/binaries/5.4-2017.01/arm-linux-gnueabihf/gcc-linaro-5.4.1-2017.01-x86_64_arm-linux-gnueabihf.tar.xz tar xf gcc-linaro-5.4.1-2017.01-x86_64_arm-linux-gnueabihf.tar.xz export CC=`pwd`/gcc-linaro-5.4.1-2017.01-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-
Test:
~/
${CC}gcc --version
arm-linux-gnueabihf-gcc (Linaro GCC 5.4-2017.01) 5.4.1 20161213
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Bootloader: U-Boot
Download :
~/
git clone https://github.com/u-boot/u-boot cd u-boot/ git checkout v2017.03 -b tmp
Patches :
wget -c https://rcn-ee.com/repos/git/u-boot-patches/v2017.03/0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch wget -c https://rcn-ee.com/repos/git/u-boot-patches/v2017.03/0002-U-Boot-BeagleBone-Cape-Manager.patch patch -p1 < 0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch patch -p1 < 0002-U-Boot-BeagleBone-Cape-Manager.patch
Configure and Build :
~/u-boot
make ARCH=arm CROSS_COMPILE=${CC} distclean
make ARCH=arm CROSS_COMPILE=${CC} am335x_evm_defconfig
make ARCH=arm CROSS_COMPILE=${CC}
Linux Kernel
TI BSP
Download:
~/
git clone https://github.com/RobertCNelson/ti-linux-kernel-dev.git cd ti-linux-kernel-dev/
For TI v4.4.x:
~/ti-linux-kernel-dev
git checkout origin/ti-linux-4.4.y -b ti-linux-4.4.y
Update GCC cross compiler path in system.sh
cp system.sh.sample system.sh
Update CC variable with path with GCC compiler path set above
nano system.sh CC=/home/yantrr/gcc-linaro-5.4.1-2017.01-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-
Build :
~/ti-linux-kernel-dev/
./build_kernel.sh
Update LINUX_GIT variable in system.sh
nano system.sh LINUX_GIT=/home/yantrr/ti-linux-kernel-dev/ignore/linux-src/
Change USB0 Mode :
For VIBE/VIBE2, very first you need to change the USB0 dr_mode from peripheral to host in Beaglebone Black kernel source file KERNEL/arch/arm/boot/dts/am335x-bone-common.dtsi while rebuilding the kernel
&usb0 {
status = "okay";
dr_mode = "host";
};
ZTE and Telit modems driver are already in Beaglebone Black kernel source version 4.4, so no need of any patch for it.
USB Driver configuration for SEW modems:
|
Only needed for SEW modems. |
nano KERNEL/drivers/usb/serial/option.c /* Yantrr Strongrising products */ #define YANTRR_VENDOR_ID 0x21f5 #define YANTRR_PRODUCT_VAYU3GH 0x2012 #define YANTRR_PRODUCT_VAYU3GC 0x2009 #define YANTRR_DONGLE_ID 0x20a6 #define YANTRR_DONGLE_PRODUCT 0x1105
/*Also, add entries in struct usb_device_id option_ids[]*/
{ USB_DEVICE(YANTRR_VENDOR_ID, YANTRR_PRODUCT_VAYU3GH) },
{ USB_DEVICE(YANTRR_VENDOR_ID, YANTRR_PRODUCT_VAYU3GC) },
{ USB_DEVICE(YANTRR_DONGLE_ID, YANTRR_DONGLE_PRODUCT) },
Rebuild Kernel :
~/ti-linux-kernel-dev
./tools/rebuild.sh
Check for PPS support under Device Drivers ---> PPS Support
Final output on terminal :
----------------------------- 'arch/arm/boot/zImage' -> '/home/yantrr/ti-linux-kernel-dev/deploy/4.4.62-ti-r99.zImage' '.config' -> '/home/yantrr/ti-linux-kernel-dev/deploy/config-4.4.62-ti-r99' -rwxr-xr-x 1 root root 8.3M May 2 14:58 /home/yantrr/ti-linux-kernel-dev/deploy/4.4.62-ti-r99.zImage ----------------------------- Building modules archive... Compressing 4.4.62-ti-r99-modules.tar.gz... -rw-r--r-- 1 root root 22M May 2 14:58 /home/yantrr/ti-linux-kernel-dev/deploy/4.4.62-ti-r99-modules.tar.gz ----------------------------- Building firmware archive... Compressing 4.4.62-ti-r99-firmware.tar.gz... -rw-r--r-- 1 root root 1.2M May 2 14:58 /home/yantrr/ti-linux-kernel-dev/deploy/4.4.62-ti-r99-firmware.tar.gz ----------------------------- Building dtbs archive... Compressing 4.4.62-ti-r99-dtbs.tar.gz... -rw-r--r-- 1 root root 1.4M May 2 14:58 /home/yantrr/ti-linux-kernel-dev/deploy/4.4.62-ti-r99-dtbs.tar.gz ----------------------------- Script Complete eewiki.net: [user@localhost:~$ export kernel_version=4.4.62-ti-r99] -----------------------------
Final step : Copy compiled kernel files to already bootable SD-card
~/ti-linux-kernel-dev
export kernel_version=4.4.62-ti-r99
cp -v deploy/${kernel_version}.zImage /media/yantrr/rootfs/boot/vmlinuz-${kernel_version}
mkdir -p /media/yantrr/rootfs/boot/dtbs/${kernel_version}/
tar xfv deploy/${kernel_version}-dtbs.tar.gz -C /media/yantrr/rootfs/boot/dtbs/${kernel_version}/
tar xfv deploy/${kernel_version}-firmware.tar.gz -C /media/yantrr/rootfs/lib/firmware/
tar xfv deploy/${kernel_version}-modules.tar.gz -C /media/yantrr/rootfs/
nano /media/yantrr/rootfs/boot/uEnv.txt
sync
lsblk
umount /dev/sdb1
eject /dev/sdb
