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Participant sjg69
Participant
2,430 Views
Registered: ‎03-29-2012

Zynq 7000 - Multiboot woes

I'm trying to generate a system where:

 

 - the user image is at 0x0 in QSPI address space

 - the golden image is at 0x1000000 in QSPI address space

 - if there is something wrong with the user image, the golden image will eventually boot.

 

From reading http://www.wiki.xilinx.com/x4.%20Time%20for%20Multiboot%20from%20QSPI it seems that this ought to work, because 0x1000000 is on a 32k boundary. 

 

Both the user image and the golden image contain (in order) a FSBL image, the bitstream, and the corresponding elf image. 

 

If I load either the golden master or the user image at 0x0, the device will boot just fine into that image.

If I load the user image at 0x0, the golden image at 0x1000000, then the user image loads and boots

If I then corrupt the user image by erasing the first 0x4000 bytes to 0xFF, and hit the reset button, the system never boots.

 

I can see that the correct QSPI addresses are being erased/written so it looks as though the golden image search isn't finding my golden master image for some reason. Anyone any clues ?

 

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1 Reply
Community Manager
Community Manager
2,402 Views
Registered: ‎07-23-2012

Re: Zynq 7000 - Multiboot woes

Please note that multiboot is not supported with pre-production devices (http://www.xilinx.com/support/answers/47588.html). Please ensure that you are targeting a production silicon.

Can you please read REBOOT_STATUS post boot failure to read the BOOTROM error code from it. This helps in understanding at what stage the boot fails.
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