Enter the following command to install Subversion:
ipkg install svn
Add the following line to your etc/inetd.conf file:
svn stream tcp nowait svnowner /opt/bin/svnserve -i -r /home/svnowner/repos
And the following 2 lines to your etc/services file:
svn 3690/tcp # Subversion
svn 3690/udp # Subversion
After entering the reboot command, the service should startup automatically with the DS.