FreeBSD

FreeBSD is an operating system for a variety of platforms which focuses on features, speed, and stability. It is derived from BSD, the version of UNIX® developed at the University of California, Berkeley. It is developed and maintained by a large community.

Adjust the card to the Clearfog boot from SD requirements - let’s assume the card is present in the FreeBSD host system as /dev/mmcsd0:

# dd if=/dev/zero of=/dev/mmcsd0
# gpart create -s MBR mmcsd0
# gpart add -t \!12 -b 4096 -s 32m mmcsd0
# gpart set -a active -i 1 mmcsd0
# gpart add -t \!12 -s 32m mmcsd0
# gpart set -a active -i 2 mmcsd0
# gpart add -t freebsd -s 2048m mmcsd0
# gpart create -s BSD mmcsd0s3
# gpart add -t freebsd-ufs -a 2m mmcsd0s3
 
# newfs_msdos /dev/mmcsd0s2
# newfs /dev/mmcsd0s3a

# mkdir /mnt/boot /mnt/rootfs
 
# mount -t msdosfs /dev/mmcsd0s2 /mnt/boot
# mount /dev/mmcsd0s3a /mnt/rootfs

$ pkg install git
$ git clone https://github.com/freebsd/freebsd.git
$ cd freebsd

Some variables (shareown, makeobjdirprefix, etc) should be adjusted to your needs.

User in SHAREOWN variable must exist.

$ setenv MAKEOBJDIRPREFIX ~/obj
$ setenv ARCH arm
$ setenv TARGET_ARCH armv6
 
$ setenv DESTDIR /mnt/rootfs
$ setenv SHAREOWN user
$ setenv SHAREGRP wheel
$ setenv INSTALL_OPTS ”-DWITHOUT_SHAREDOCS -DWITHOUT_EXAMPLES -DWITHOUT_GAMES -DWITHOUT_HTML -DWITHOUT_INFO -DWITHOUT_MAN”

Use -j option to set cores/threads. In my case 4 threads.

$ make -j4 kernel-toolchain
$ make -j4 buildkernel KERNCONF=ARMADA38X
$ make installkernel KERNCONF=ARMADA38X

$ make builddtb FDT_DTS_FILE=armada-388-clearfog.dts
$ make -j4 buildworld -DWITH_FDT
$ make installworld $INSTALL_OPTS
$ make distrib-dirs
$ make distribution

At this point you have compiled and installed FreeBSD with the kernel at /mnt/rootfs/boot/kernel/ and dtb’s in /mnt/rootfs/boot/dtb/ directories of the mounted storage.

# cp /mnt/rootfs/boot/ubldr.bin /mnt/boot/

# echo "/dev/mmcsd0s3a / ufs rw 1 1" >> /mnt/rootfs/etc/fstab

In file /boot/loader.conf you can set kernel variables, which are passed further by loader.

Execute lines below to turn on L1 cache prefetch in FreeBSD kernel.

# echo “hw.cpu.quirks.actlr_set = 0x4” >> /mnt/rootfs/boot/loader.conf
 
# echo “hw.cpu.quirks.actlr_mask = 0x4” >> /mnt/rootfs/boot/loader.conf

Later once the kernel is running on the target machine, above variables values can be verified, using sysctls.

# sysctl -a | grep hw.cpu

# umount /mnt/boot /mnt/rootfs

Following part of tutorial will cover all things necessary to build u-boot

$ cd
$ wget https://releases.linaro.org/archive/14.11/components/toolchain/binaries/arm-linux-gnueabi/gcc-linaro-4.9-2014.11-x86_64_arm-linux-gnueabi.tar.xz

$ tar xvf gcc-linaro-4.9-2014.11-x86_64_arm-linux-gnueabi.tar.xz
$ export CROSS_COMPILE=”$HOME/gcc-linaro-4.9-2014.11-x86_64_arm-linux-gnueabi/bin/arm-linux-gnueabi-”

 $ export ARCH=arm 

Assuming, that the uSD card is present in the system as /dev/mmcblk0:

$ git clone https://github.com/SolidRun/u-boot-armada38x.git
$ cd u-boot-armada38x
$ make armada_38x_clearfog_config
$ make u-boot.mmc
# dd if=u-boot.mmc of=/dev/mmcblk0 bs=512 seek=1

Plug SD card to board and turn the Clearfog on.

Open board serial console, reset SoC and wait for:

Hit any key to stop autoboot:

Stop In U-Boot by pressing any key. Then set proper booting command in bootcmd variable:

setenv fdtfile armada-388-clearfog.dtb
setenv bootcmd ‘fatload mmc 0:2 900000 ubldr.bin; go 900000;’
setenv bootdelay 5 #or smaller
saveenv

Now you could restart board and wait for system:

reset

After less then minute you could login to FreeBSD:

FreeBSD/arm (Amnesiac) (ttyu0)
login:

After login to FreeBSD (root with no password) you can set password by typing:

passwd

Then you have to type new password 2 times.

To create new user use:

adduser

It works in interactive mode, so it will ask you few questions and suggest default values

If size of your SD card is larger than size of partition you have created you can type following command:

service growfs onestart

It will resize rootfs to maximum size.

The latest images can be found here:

http://images.solid-build.xyz/A38X/freebsd/

Switching between Clearfog Base and Clearfog Pro need some software changes (Uboot etc.)

• FreeBSD