Hi York, >-----Original Message----- >From: york sun >Sent: Wednesday, October 26, 2016 10:09 PM >To: Calvin Johnson <calvin.john...@nxp.com>; Prabhakar Kushwaha ><prabhakar.kushw...@nxp.com>; Pratiyush >Srivastava <pratiyush.srivast...@nxp.com>; u-boot@lists.denx.de; Mingkai Hu ><mingkai...@nxp.com> >Cc: Hou Zhiqiang <zhiqiang....@freescale.com> >Subject: Re: [PATCH] armv8/ls1043a: Add the OCRAM initialization > >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.
I don't know about LS2080A. Prabhakar or Ruchika(copied) may be able to comment on this. Regards Calvin _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
