On 1/18/20 10:53 AM, Jaehoon Chung wrote:
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://protect2.fireeye.com/url?k=d4848ff3-8957d64d-d48504bc-0cc47a31ba82-4...
Oops. 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