Hi Vagrant, I just had a break-through with this! See inline. Vagrant Cascadian writes: > On 2021-07-13, Pierre Langlois wrote: >> I'm afraid since commit 3a851d45576e046d696fcf35b34d57b2cd28ea49 [0] >> I've not been able to boot from eMMC on the rockpro64 board, it freezes >> before loading the kernel. Re-introducing the work-around fixed the >> issue for me (see patch attached). >> >> Did we mean to remove the work-around? I'm wondering if there's >> something I'm missing, or if I should instead boot from a USB device. > > I definitely tested this on pinebook-pro and probably just assumed it > would also fix the issue on rockpro64... > > >> I've also updated u-boot to 2021.07 but I'm seeing the same boot issue >> so it doesn't appear to be fixed upstream :-/ >> >> Anybody know of any other work around? If not, are you happy with the >> patch attached? > > I'll try to test on rockpro64 and see if I can confirm the issue and > your fix... > > > live well, > vagrant > >> From f3c647bb447706f465a3fb4b8d6e09cd089dbed9 Mon Sep 17 00:00:00 2001 >> From: Pierre Langlois >> Date: Sat, 8 May 2021 16:19:23 +0100 >> Subject: [PATCH 1/3] gnu: u-boot-rockpro64-rk3399: Disable USB boot. >> >> * gnu/packages/bootloaders.scm (u-boot-rockpro64-rk3399)[arguments]: Add >> 'patch-rockpro64-config phase. >> --- >> gnu/packages/bootloaders.scm | 11 ++++++++--- >> 1 file changed, 8 insertions(+), 3 deletions(-) >> >> diff --git a/gnu/packages/bootloaders.scm b/gnu/packages/bootloaders.scm >> index 742992a119..75705a27c1 100644 >> --- a/gnu/packages/bootloaders.scm >> +++ b/gnu/packages/bootloaders.scm >> @@ -12,7 +12,7 @@ >> ;;; Copyright © 2019 Mathieu Othacehe >> ;;; Copyright © 2020 Björn Höfling >> ;;; Copyright © 2018, 2019, 2020 Vagrant Cascadian >> -;;; Copyright © 2020 Pierre Langlois >> +;;; Copyright © 2020, 2021 Pierre Langlois >> ;;; Copyright © 2021 Vincent Legoll >> ;;; Copyright © 2021 Brice Waegeneire >> ;;; >> @@ -931,11 +931,16 @@ to Novena upstream, does not load u-boot.img from the first partition.") >> (substitute-keyword-arguments (package-arguments base) >> ((#:phases phases) >> `(modify-phases ,phases >> + (add-after 'unpack 'patch-rockpro64-config >> + ;; Fix regression in 2020.10 causing freezes on boot with USB boot enabled. >> + ;; See https://gitlab.manjaro.org/manjaro-arm/packages/core/uboot-rockpro64/-/issues/4 >> + (lambda _ >> + (substitute* "configs/rockpro64-rk3399_defconfig" >> + (("CONFIG_USE_PREBOOT=y") "CONFIG_USE_PREBOOT=n")))) >> (add-after 'patch-rockpro64-config 'set-environment Wait a minute, there was a bug here on master! The 'set-environment phase runs after 'patch-rockpro64-config phase, it should be 'unpack. This was the reason it was hanging on boot for me, it wasn't to do with PREBOOT, ah-ha! :-D That's nice, I was really confused about this issue, thinking I maybe had a faulty board.