26 Oct
2016
26 Oct
'16
6:39 p.m.
On 10/24/2016 09:30 PM, Calvin Johnson wrote:
I wonder why we don't see ECC errors before this patch. We have LS1043A boots on NAND, SD.
OCRAM has a requirement of initializing before first time "read". If user reads OCRAM before **initializing**; ECC error will come. (u-boot is not handling this error for now).
I can only guess the reason of not seeing this error as OCRAM never read before any write. Even in case of Stack, data is first written and then read.
Is there a case you want to read from OCRAM before writing anything to it? Why don't we need to do so for SPL or LSCH3?
This issue will be seen ONLY in secure boot. It was reproduced on LS1043A also.
How about LSCH3? We have LS2080A secure boot.
York