> -----Original Message----- > From: York Sun [mailto:york....@nxp.com] > Sent: Monday, May 23, 2016 11:33 PM > To: Shengzhou Liu <shengzhou....@nxp.com>; u-boot@lists.denx.de > Subject: Re: [PATCH] driver/ddr/fsl: Force enabling parity for A-009803 > Shengzhou, > > My point is you should force ap=1. Do you mean if ERRATUM_A009803 is > enabled, users are forced to use address parity? That doesn't sound right. > We have been running UDIMM without address parity for a long time. > > York > York, My understanding is that ERRATUM_A009803 may still happen whatever ap_en is enabled or disabled. To apply the workaround of A009803, it requires ap_en is enabled. Is your understanding that if we disable ap_en, ERRATUM_A009803 will never happen? The CE document doesn't explain clearly this. In last mail, did you mean we should force ap_en = 0 in case of A-009803?
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