On Wed, 28 Oct 2020 at 09:56, Y.b. Lu <yangbo.lu@xxxxxxx> wrote: > > Hi Uffe, > > > -----Original Message----- > > From: Ulf Hansson <ulf.hansson@xxxxxxxxxx> > > Sent: Tuesday, October 27, 2020 9:42 PM > > To: Y.b. Lu <yangbo.lu@xxxxxxx> > > Cc: linux-mmc@xxxxxxxxxxxxxxx; Adrian Hunter <adrian.hunter@xxxxxxxxx> > > Subject: Re: [v3] mmc: sdhci-of-esdhc: make sure delay chain locked for HS400 > > > > On Tue, 20 Oct 2020 at 10:20, Yangbo Lu <yangbo.lu@xxxxxxx> wrote: > > > > > > For eMMC HS400 mode initialization, the DLL reset is a required step > > > if DLL is enabled to use previously, like in bootloader. > > > This step has not been documented in reference manual, but the RM will > > > be fixed sooner or later. > > > > > > This patch is to add the step of DLL reset, and make sure delay chain > > > locked for HS400. > > > > > > Signed-off-by: Yangbo Lu <yangbo.lu@xxxxxxx> > > > > Applied for next (please tell if you think this deserves to be tagged > > for stable), thanks! > > Thanks! > Please help to tag for stable. The latest u-boot just supporting eSDHC HS400, may cause kernel HS400 issue without this patch. I have added a stable and a fixes tag. Additionally I have moved the patch to my fixes branch. Please have a look in my git to make sure it looks good to you. [...] Kind regards Uffe
