Hi On 1/18/20 9:22 AM, Alexander von Gluck IV wrote: > Has anyone successfully used u-boot on the Raspberry Pi 4 in 32-bit mode?
I'm using 32-bit u-boot on RPI4 board with Tizen Platform. You can refer to tizen u-boot git. Also I modified some configurations. https://git.tizen.org/cgit/platform/kernel/u-boot/log/?h=tizen So you may modify some configs about your environment. > > Building via the following: > > make rpi_4_32b_defconfig > ARCH=arm CROSS_COMPILE=arm-none-eabi- make > > Booting via: > > * u-boot.bin on Fat32 partition > * start.elf from > * config.txt on Fat32 partition > kernel=u-boot.bin > enable_uart=1 > arm_64bit=0 > Our config.txt is below, enable_uart=1 uart_2ndstage=1 I didn't add "arm_64bit" config. Best Regards, Jaehoon Chung > Just a black screen, however, no serial uart output > > Thanks! > > -- Alex > >

