Whoops, I meant mainline u-boot using tag v2019.10. (The ram restriction was more complicated on arm64 since there was some bounce buffer voodoo that needed to be done, IIRC.)
git clone --depth 1 --branch v2019.10 https://github.com/u-boot/u-boot.git cd u-boot ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make rpi_4_defconfig ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- make -j $(($(nproc) + 1)) sudo cp u-boot.bin /boot/firmware/uboot_rpi_4.bin arm64 boot dmesg on arm64: https://paste.ubuntu.com/p/Z8Rn59Dsw3/ @rpi4:~$ free -m total used free shared buff/cache available Mem: 3806 689 2852 10 263 3052 Swap: 4095 0 4095 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1847500 Title: Full RAM on Pi4 isn't accessible when using u-boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-notes/+bug/1847500/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
