Re: u-boot 32-bit on Raspberry Pi 4

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