I don't know anything about Tow-boot, but it might be Linux-specific.
You will probably have to replace Tow-boot. At this point, I would just zero the SPI ram. I have NetBSD working with what must be the U-boot from the "Debian Desktop" install that originally came with my first PBP.
According to the NetBSD ARM mailing list, we should get bootable images (again) soon, which will come with a working U-boot. When that happens, it'll be here http://nycdn.netbsd.org/pub/arm/netbsd-9...m-aarch64/
You will probably have to replace Tow-boot. At this point, I would just zero the SPI ram. I have NetBSD working with what must be the U-boot from the "Debian Desktop" install that originally came with my first PBP.
According to the NetBSD ARM mailing list, we should get bootable images (again) soon, which will come with a working U-boot. When that happens, it'll be here http://nycdn.netbsd.org/pub/arm/netbsd-9...m-aarch64/