11-16-2023, 04:49 PM
As it happens, I did try out the NetBSD u-boot. I then removed the back of the case, to find that shorting SPI pin 6 to ground isn't so easy as presented in the pine64 wiki, now that there's a cover plate that would have to be pried off. Luckily, I found that Manjaro would sometimes boot from the eMMC if I held the power button down long enough, and from there I could zero the SPI device up to a point. So luckily I'm back where I started.
I don't know why the NetBSD rockpro64 u-boot didn't work, but it sure didn't. Possibly the device isn't adequately supported right now as something that can be dd'd to, and if I carted it over to Linux and flashcp'd it it would be fine. Or I could get myself into a situation where I have to take a chisel to the board, so ... I don't know, maybe not.
tow-boot was mainly just erratic - sometimes it couldn't boot the SD, but if you keep trying, it would get it eventually. Or it would freeze up. I'd be using it, if it didn't knock out the USB wifi device. It's ragged, but it can choose a boot device.
Anyway ... the black screen problem returned right away after I zeroed the SPI, which didn't fit the normal pattern since it was after a Manjaro session.
I don't know why the NetBSD rockpro64 u-boot didn't work, but it sure didn't. Possibly the device isn't adequately supported right now as something that can be dd'd to, and if I carted it over to Linux and flashcp'd it it would be fine. Or I could get myself into a situation where I have to take a chisel to the board, so ... I don't know, maybe not.
tow-boot was mainly just erratic - sometimes it couldn't boot the SD, but if you keep trying, it would get it eventually. Or it would freeze up. I'd be using it, if it didn't knock out the USB wifi device. It's ragged, but it can choose a boot device.
Anyway ... the black screen problem returned right away after I zeroed the SPI, which didn't fit the normal pattern since it was after a Manjaro session.