Hi,
I am very new to ARM juno, I have few doubts
2. How to customize the boot flow
Hi srinivasulu and welcome to to the Community!
I'm sorry I missed this, I have moved your question to ARM Development Platforms where I hope you will get your answer.
Do let us know if you have found your answer already (please provide the source!).
Hi srinivasulu,
You questions are very wide ranging, and not something that can be easily covered on this forum. However there are similar questions covered in ARM JUNO BOARD R2 and the answers from MarkN give pointers to some resources that may be of use to you.
Juno and the Linaro deliverables described at Using Linaro's deliverables on Juno implement ARM Trusted Firmware (ATF). ATF is maintained under github which includes documentation including the Firmware Design document which describes the boot flow, and a Porting Guide which may be of use to you.
If you have more specific questions, you may be able to get answers here at ARM Development Platforms or from juno-support@arm.com.
I hope this helps
Michele