U-boot command prompt failed to load in Raspberry pi 4

U-boot command prompt failed to load in Raspberry pi 4

[satish reddy]

Hi,

I'm porting u-boot for raspberry pi 4. I cross compiled u-boot for
Raspberry pi 4 and copied u-boot.bin and latest firmware files start4.elf
and fixup4.dat from git into a SD card. My configuration file contains
enable_uart=1
arm_64bit=1
uart_2ndstage=1
kernel=u-boot.bin

Inserted SD card into pi and started monitoring logs from serial port.
it got stuck at starting start3.elf @ 0xfec00200
I am not able to find the solution for this issue. Please kindly help to
resolve this u-boot bug in raspberry pi 4.

Regards,
Satish

U-boot command prompt failed to load in Raspberry pi 4

[satish reddy]

Hi,

I found that there is a change in building U-Boot for Raspberry pi 4.
1. Kernel address space is increased.
2. Need to add respective *.dtb files to the /boot.
3. boot.src and boot.txt files were added to the /boot.

Please refer to the following links for more information.
https://github.com/SatishKumarReddyPokala/RPI4/tree/master/U-Boot/Build_U-Boot
https://archlinuxarm.org/packages/armv7h/uboot-raspberrypi/files/PKGBUILD

Regards,
Satish kumar reddy.

On Sun, Sep 6, 2020 at 6:29 PM satish reddy <satishpokala40@gmail.com>
wrote:

> Hi,
>
> I'm porting u-boot for raspberry pi 4. I cross compiled u-boot for
> Raspberry pi 4 and copied u-boot.bin and latest firmware files start4.elf
> and fixup4.dat from git into a SD card. My configuration file contains
> enable_uart=1
> arm_64bit=1
> uart_2ndstage=1
> kernel=u-boot.bin
>
> Inserted SD card into pi and started monitoring logs from serial port.
> it got stuck at starting start3.elf @ 0xfec00200
> I am not able to find the solution for this issue. Please kindly help to
> resolve this u-boot bug in raspberry pi 4.
>
> Regards,
> Satish
>


-- 
*Thanks & Regards,*
P.Satish Kumar Reddy.
+91-9666796840