[U-Boot] Can't boot DaVinci EVM with Green Hills' Integrity OS

[Jeroen Hofstee]

Hello noti1234,

On 30-03-15 20:44, noti1234 wrote:
> I'm having problems booting my DaVinci board with Green-Hills' Integrity OS.
> My setup is:
> Hardware: TI's DaVinci EVM:
> http://www.spectrumdigital.com/product_info.php?products_id=192
> u-boot: u-boot-2015.4-rc3. Configured for dvevm with elf support.
>
> * If the board's flash is programmed with u-boot then the Integrity OS
> initialization process gets stuck.
> * If the board's flash is erased (which means I get BOOTME BOOTME requests)
> then the Integrity OS initialization process, using Green Hills probe
> (something like JTAG), works fine.
>
> This behavior is strange. It seems that something in the u-boot
> initialization process, messes up something for the Integrity OS to run
> smoothly.
>
> To make things clearer:
> The u-boot works fine before trying to boot the Integrity OS elf. I can read
> memory regions, write, tftp, etc.
> The problem is that the init process of the Integrity OS gets stuck.
> So currently I can only boot the board using the Green Hills probe, when the
> flash has no boot loader.
>
> Do you have any idea how to approach this problem? Any way to debug it?
>

I have no knowledge of your actual setup, but it might be worth
checking if disabling caches at compile time helps (in your boards config
or perhaps menuconfig nowadays).

Regards,
Jeroen