SD Card Boot

[malcolm_locke]

Hi,

I have an Agilex 5 Modular Development Board which I can boot with the supplied SD Card.

I have tried to update to the latest image at Index of /2025.04/gsrd/agilex5_mk_a5e065bb32aes1_gsrd/,

However, after programming an SD Card with this image, as far as I can tell, my board doesn't boot. I get no output from the serial port so I don't have any way of debugging.

Please can you help with any advice how to proceed to diagnose what is going wrong?

Many thanks

Malcolm

[BrianSune_Froum]

@RolandoS_Altera 

I am confused what actually you are asking or confirming?

For Das U-Boot 2025 01 and 04 had changed the SPL detection.

While 2025 07 the stack is even changed which at this stage I can't make it boot on any Cyclone V device.

For both Altera Git U-Boot or  Das U-Boot I had confirmed 2025 01 04 and older revision all aligned excluded dts file.

Aka modifications to boot properly on SD only platform.

I had not followed any altera boot document nor the rocket forum b.c. the follow is not telling any backward compatibility.

However it is actually allow on older "hps_isw_handoff" folder to reused on new Python script.

So I am not sure what you are asking for.

As far I can tell I have no idea why the 2025 07 cannot boot properly.

There are too many patches on SPL and the stack change include start.S.

[BrianSune_Froum]

@RolandoS_Altera 

On top of your responses.

I am not pointing on the stage after SPL aka U-Boot. Only focusing on SPL aka the HPS ARM ROM detecting the SPL etc.

I cannot see this is related to component variant. b.c. as long as the HEX data on the MBR sanity is good. Then it should at least provide message on serial port.

However on 2025 01 or 04 it is not able to do so on default cyclone_V defconfig file passed along version of U-Boot.