i.MX Processors中的主题 Booting i.MX6 Android from NOR FLASH

Booting i.MX6 Android from NOR FLASH

mike_sims — Sat, 21 May 2016 20:20:20 GMT

Hi,

I have questions about booting Android from NOR on a Sabre AI (imx6dl CPU2) board.

I am preparing a SW Build for our custom HW design by using the SabreAI board. I have built the sw provided by NXP to boot Android from SD Card (this works well). I am trying to adapt this SW to put u-boot and the boot image on the on-board 32MB NOR, but I do not see a way in U-Boot to use BOOTA from NOR. Is U-Boot the right bootloader to use to boot from NOR??

For now, I am OK with having the remaining partitions on SD Card. In our custom application, I would want the boot, bootimage, recoveryimage, and system partition on NOR. Will I need to modify the FSTAB, INIT*.RC, or System Image to move these partitions from SD to NOR??

Thank you in advance for your answers...

Regards..

Re: Booting i.MX6 Android from NOR FLASH

ScottKerstein — Wed, 25 May 2016 11:50:21 GMT

Android MM6.0 release doc , for SabreAI board , boot source tested are :External SD and NAND.

For Linux 4.1.15 release note , there is u-boot configure for SabreAI board boot from nor flash. Refer it to generate u-boot which could boot from NOR flash. For Kernel and other image storage partitions, one could take the android release user guide doc. for reference.

Re: Booting i.MX6 Android from NOR FLASH

mike_sims — Thu, 26 May 2016 16:17:03 GMT

Thank you for the responses, but none really address the question of how to use BOOTA with NOR.

After much digging, there is a way to implement this. BOOTA takes an address as a parameter. So, if a BOOT.IMG is programmed into flash at say address 0x08080000, I can use the U-Boot command BOOTA 0x08080000 to correctly load this image and boot...

Hope this helps someone else....

Regards.