Sosuboot-tegra

This is Buildroot outside of tree board config for small Tegra recovery system.

At this moment it contain config only for Toshiba AC100 (tegra20-paz00)

Build enviroment

Compare your build system to Buildroot requirements

https://buildroot.org/downloads/manual/manual.html#requirement

Extra dependencies

Host tegrarcm package require also libcryptopp.

Get sources

Create working directory for example:

mkdir sosuboot
cd sosuboot

Download buildroot:

git clone git://git.buildroot.net/buildroot

Download this repository:

git clone git://github.com/ac100-ru/sosuboot-tegra

Compile

Switch to buildroot directory:

cd buildroot

For sosuboot-tegra20-paz00 RCM image use defconfig:

make BR2_EXTERNAL=../sosuboot-tegra tegra20-paz00_defconfig

For SD card image use ext_defconfig:

make BR2_EXTERNAL=../sosuboot-tegra tegra20-paz00_ext4_defconfig

Start compilation

make

RCM image

Resulting image for Tegra RCM loading you can find in output/images
under sos-uboot.bin file name.

To load it on paz00, you need to switch device to RCM mode, if device already
use U-Boot use enterrcm command in U-Boot console or with hardware keys combo
Ctrl+Esc+Power button. Then run tegrarcm tool:

tegrarcm --bct=bctfilename readbct
tegrarcm --bct=bctfilename --loadaddr=0x108000 --bootloader=path/to/sos-uboot.bin

SDcard image

Resulting image for SD card writing you can find in output/images
under sdcard.img file name.

To install it simply write to SD card, insert it into AC100 and boot it.

sudo dd if=sos-uboot-sdcard.img of=/dev/xxxx bs=4M; sync