Hi Ravi,
Have you tried to use RESET_TO_BL31 build option for your platform?
Regards.
Alexei
________________________________ From: TF-A tf-a-bounces@lists.trustedfirmware.org on behalf of rkohli2000 gmail via TF-A tf-a@lists.trustedfirmware.org Sent: 07 October 2020 17:01 To: tf-a@lists.trustedfirmware.org tf-a@lists.trustedfirmware.org Subject: [TF-A] BL31 as bootloader
Hi, I'm a new user and sorry for some basic TF-A questions. Any guidance is appreciated.
I'm am able boot the TF-A bl31.bin image itself on my i.MX8QM MEK platform without using u-boot. I can use the imx-mkimage tool to create a flash or eMMC bootable image (flash.bin). Here, I can specify this container image with both bl31.bin and a separate custom app at a give flash address. This is without any security requirements or dependencies.
Can I use the T-FA bl31.bin image to act as a first stage bootloader (without u-boot) and then launch a "custom" bare metal app for Cortex-A53 (for example) on the i.MX8QM at the given (BL33) entry point 0x80020000 address ?
Thanks in advance. Ravi
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