08-24-2019, 04:37 PM
(08-24-2019, 09:18 AM)fire219 Wrote: At this point, most if not all of the boards(+laptops+Pinephone) can run almost completely libre. The issues in that regard are largely isolated to WiFi/BT driver blobs, and the initial stage 1 bootloader (which does DRAM initialization).
When it comes to the pinebook pro, I think you mean the stage 2 loader - that's the binary blob which is does the DDR init and loads uboot. There is a stage 1 loader, but it resides in ROM and can never be replaced.
Rockchip's documentation is somewhat cryptic. Some time ago I tried to understand the boot process and made notes. You can read about it on my website (click my "website icon" below).