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[microblaze-uclinux] Question about Petalinux bootability on customized hardware system



Hello,

 

My system has size limit. I can only have ICACHE, without DCACHE, and there will be NO LMB BRAM at address zero. Instead, FLASH will be at address zero and a bootloader will run from flash and copy linux image to SDRAM for execution. I am not sure if Petalinux could be configured in such a system?

 

I’ve tried to build a similar system withour DCACHE, but with LMB BRAM at address zero, it does not boot up and there is no message showing on UART console.

 

System brief:

Microblaze with ICACHE enable, DCACHE disable

MCH_OPB_SDRAM: one XCL channel, OPB_IPIF enabled

FLASH: (set to address 0 for Microblaze)

UART

No LMB BRAM (where IRQ and RESET vector resided at address zero)

 

Thanks

-Kevin