"Hi, On Tue, Jul 18, 2017 at 10:40 AM, Konrad Rzeszutek Wilk <kon...@kernel.org> wrote: > Hey, > > I am trying to install an U-boot from the upstream repo as it looks to have > most (if not all?) > of the features needed for the A80 board (Cubieboard4). > > I've built the uboot just fine (using the default > ./configs/Cubieboard4_defconfig) > .. > ./tools/mkimage -A arm -T firmware -C none -O u-boot -a 0x2a000000 -e 0 -n > "U-Boot 2017.07-00217-ge14b116 for sunxi board" -d u-boot.bin u-boot.img > Image Name: U-Boot 2017.07-00217-ge14b116 fo > Created: Wed Jul 12 22:11:53 2017 > Image Type: ARM U-Boot Firmware (uncompressed) > Data Size: 355711 Bytes = 347.37 KiB = 0.34 MiB > Load Address: 2a000000 > Entry Point: 00000000 > > And now I am trying to load it on the SD card and load it > on a Cubieboard4, but it just hangs. > > If I use from the CC-A80-binaries[*1] git repo the "sdcard-fwbuild.sh" > and put the two resulting binaries on the SD card it boots fine. > > But naturally the u-boot that is on the mentioned repo is from 2011 > and I would like a more recent version. > > If I try to use the CC-A80-binaries[*1] git repo and the "sdcard-fwbuild.sh" > with the upstream u-boot it complains very loudly - and the resulting > binary is not created. > > I figured out that it must be due to the header which as the magic > string of 'uboot' (which in [*2] is in > arch/arm/cpu/armv7/sun9iw1/spare_head.c) > > In u-boot upstream I can set CONFIG_RESERVE_ALLWINNER_BOOT0_HEADER=y > which I did, but now I am struggling to figure out what I am > suppose to put in there. Any ideas? Is there an tool to fill this > area out? And more importantly, am I on the right track or is > there something else that I a missing? > > I did look at board/sunxi/README.sunxi64 and it explained about the boot0 > but that talks about A53 boards I have an A15 (armv7) - and > 'arm-trusted-firmware' is all geared towards armv8. > > Hints of what I should do next?
With ARMv7 Allwinner SoCs and mainline U-boot, boot0 is replaced with U-boot SPL. The build process should generate a "u-boot-sunxi-with-spl.bin" file, which is the SPL combined with U-boot proper at the correct offsets. Just write that as you would the image built from "sdcard-fwbuild.sh", that is at an offset of 8192 bytes on the SD card. ChenYu > > Thanks! > > [*1]: https://github.com/cubieboard/CC-A80-binaries > [*2]: https://github.com/cubieboard/CC-A80-u-boot > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
