> Date: Sun, 28 Jul 2019 17:04:12 +1000 > From: Jonathan Gray <j...@jsg.id.au> > > On Fri, Jun 21, 2019 at 10:24:48PM +0200, Mark Kettenis wrote: > > I've finally managed to build a properly working (and fully open > > source) firmware for the ROCKPro64. The firmware consists of two > > files, which can be downloaded from: > > > > https://sibelius.home.xs4all.nl/firmware/rk3399-rockpro64/idbloader.img > > https://sibelius.home.xs4all.nl/firmware/rk3399-rockpro64/u-boot.itb > > > > In order to use this firmware you'll have to write it to a uSD card or > > an eMMC module with the following commands: > > > > # dd if=idbloader.img of=/dev/sdXc seek=64 > > # dd if=u-boot.itb of=/dev/sdXc seek=16384 > > > > Note that if you flashed a firmware to the onboard SPI flash, you'll > > have to erase it first or disable the SPI flash with a jumper wire > > connecting pins 23 and 25. > > > > Also note that the firmware overlaps with the msdos partition in the > > default OpenBSD/arm64 disk layout. Therefore you can't have the > > firmware and the OpenBSD boot/root filesystems on the same device > > without running through additional hoops. Ultimately the goal is to > > make it possible to put this firmware in SPI flash, but I haven't > > looked into that yet. > > > > This firmware uses a more standard serial speed of 115200, which means > > you can use almost any USB TTL serial cable. DVFS is supported so you > > can use sysctl hw.setperf to control to clock speed of the CPUs. But > > be aware that without a fan the board will probably overheat if you > > run it at the highest supported clock speed. > > > > At some point this should land in the official u-boot-aarch64 > > packages. But since this build relies on a fairly large patch set > > that hasn't landed upstream yet, this may take some time. > > I have committed a U-Boot 2019.07 update which builds the > rockpro64-rk3399 target and patches the default baud to 115200. > > As on firefly it has file named idbspl.img instead of idbloader.img. > Don't have hardware so not sure if further patches are required.
Unfortunately the LPDDR4 support patches landed after 2019.07 was released. The ROCKPro64 won't work without those patches, and it is a rather large set of patches :(. I'm somewhat surprised to see that the rk3399 targets still build without TPL. But maybe the SPL overflow happens because of the LPDDR4 patches. When we switch to TPL, I think it makes sense to start using idbloader.img instead of idspl.img to be consistent with rk3288 and the Rockchip documentation.
