From: Shengzhou Liu <shengzhou.liu@nxp.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] driver/ddr/fsl: Force enabling parity for A-009803
Date: Tue, 24 May 2016 05:15:35 +0000 [thread overview]
Message-ID: <AMXPR04MB18446DEEBB263295217B66AF24F0@AMXPR04MB184.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <574322B7.1030508@nxp.com>
> -----Original Message-----
> From: York Sun [mailto:york.sun at nxp.com]
> Sent: Monday, May 23, 2016 11:33 PM
> To: Shengzhou Liu <shengzhou.liu@nxp.com>; u-boot at 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?
Shengzhou
next prev parent reply other threads:[~2016-05-24 5:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-20 8:05 [U-Boot] [PATCH] driver/ddr/fsl: Force enabling parity for A-009803 Shengzhou Liu
2016-05-20 15:29 ` York Sun
2016-05-23 9:18 ` Shengzhou Liu
2016-05-23 15:33 ` York Sun
2016-05-24 5:15 ` Shengzhou Liu [this message]
2016-05-24 16:13 ` York Sun
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