On 2021-09-02, Patrick Wildt wrote:
The MNT Reform 2 is a modular DIY laptop. In its initial version it is based on the BoundaryDevices i.MX8MQ SoM. Some parts have been lifted from BoundaryDevices official U-Boot downstream project.
Thanks for working on this!
I'm struggling a bit getting it to actually boot; how is this supposed to be installed to the device?
I've built with the two applied patches on a patched v2021.10, copying various firmware parts from:
https://source.mnt.re/reform/reform-boundary-uboot/-/blob/master/bl31-iMX8MQ... https://source.mnt.re/reform/reform-boundary-uboot/-/blob/master/lpddr4_pmu_... https://source.mnt.re/reform/reform-boundary-uboot/-/blob/master/lpddr4_pmu_... https://source.mnt.re/reform/reform-boundary-uboot/-/blob/master/lpddr4_pmu_... https://source.mnt.re/reform/reform-boundary-uboot/-/blob/master/lpddr4_pmu_...
export BL31=bl31-iMX8MQ.bin
make imx8mq_reform2_defconfig make make flash.bin
Then grepping various other README's from imx8mq devices, I tried two different processes:
dd if=flash.bin of=/dev/sd[x] bs=1K seek=33
and:
dd if=flash.bin of=/dev/sd[x] bs=1024 seek=33 conv=sync dd if=u-boot.itb of=/dev/sd[x] bs=1024 seek=384 conv=sync
Both simply hanging with:
U-Boot SPL 2021.10 (Jan 01 1970 - 00:00:01 +0000)
Is the flash.bin step unecessary? I see DDR timing code in the patch series; are corresponding lpddr4*.bin no longer necessary?
I also tried building with an old version of arm-trusted-firmware (v2.2), as that was the most recent upstream version that successfully built. This seems to be a fork of ATF that has support for iMX8MQ, but it is unclear which branch/tag/etc. should be used with the mnt/reform:
https://source.codeaurora.org/external/imx/imx-atf
It would be nice to include a board README in the next patch revision to spell out some of the details of exactly which other projects and versions/comments/branches are expected to work with MNT Reform2.
I would be nice if you could CC me on future patch series revisions to be able to test. Thanks!
live well, vagrant
Signed-off-by: Patrick Wildt patrick@blueri.se
arch/arm/dts/imx8mq-mnt-reform2-u-boot.dtsi | 11 + arch/arm/mach-imx/imx8m/Kconfig | 6 + board/mntre/imx8mq_reform2/Kconfig | 12 + board/mntre/imx8mq_reform2/MAINTAINERS | 7 + board/mntre/imx8mq_reform2/Makefile | 12 + board/mntre/imx8mq_reform2/imx8mq_reform2.c | 213 ++++ board/mntre/imx8mq_reform2/lpddr4_timing.c | 1014 +++++++++++++++++ .../mntre/imx8mq_reform2/lpddr4_timing_ch2.h | 95 ++ board/mntre/imx8mq_reform2/spl.c | 260 +++++ configs/imx8mq_reform2_defconfig | 67 ++ include/configs/imx8mq_reform2.h | 151 +++ 11 files changed, 1848 insertions(+) create mode 100644 arch/arm/dts/imx8mq-mnt-reform2-u-boot.dtsi create mode 100644 board/mntre/imx8mq_reform2/Kconfig create mode 100644 board/mntre/imx8mq_reform2/MAINTAINERS create mode 100644 board/mntre/imx8mq_reform2/Makefile create mode 100644 board/mntre/imx8mq_reform2/imx8mq_reform2.c create mode 100644 board/mntre/imx8mq_reform2/lpddr4_timing.c create mode 100644 board/mntre/imx8mq_reform2/lpddr4_timing_ch2.h create mode 100644 board/mntre/imx8mq_reform2/spl.c create mode 100644 configs/imx8mq_reform2_defconfig create mode 100644 include/configs/imx8mq_reform2.h