Could someone tell me how I programatically set BT_FUSE_SEL. I might be missing something but in the SBR register at +0x460 from the datasheets it is only read only. I appreciate it can only be set the once to change to boot from the fuses but I'm not sure how this works? I would like to start eboot note eboot not uboot, from one boot source, this then writes the fuses so next reboot it will then start from the final source. Or is this something that can only be done by the mfg tool.