[U-Boot-Users] U-Boot on Renesas SH-3 platform

Hello,

does anybody know or has tried a port of U-Boot to a Renesas SH3 (SuperH) little endian platform? I am thinking of using U-Boot as a comfy bootloader on a SH3 platform (SH7720 to be specific). Any warnings what I should look out for when doing the port myself? Any recommandations which existing architecture would be a good starting point?

Thanks Mark Jonas