RE: [PATCH] Disable the non working eMMC on Zoom2/3

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




> -----Original Message-----
> From: zhangfei gao [mailto:zhangfei.gao@xxxxxxxxx]
> Sent: Thursday, June 24, 2010 4:26 PM
> To: Ghorai, Sukumar
> Cc: Chikkature Rajashekar, Madhusudhan; Tony Lindgren; Menon, Nishanth;
> linux-omap@xxxxxxxxxxxxxxx; linux-mmc@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH] Disable the non working eMMC on Zoom2/3
> 
> On Tue, Jun 22, 2010 at 7:43 PM, Ghorai, Sukumar <s-ghorai@xxxxxx> wrote:
> >
> >
> >> -----Original Message-----
> >> From: zhangfei gao [mailto:zhangfei.gao@xxxxxxxxx]
> >> Sent: Tuesday, June 22, 2010 4:51 PM
> >> To: Chikkature Rajashekar, Madhusudhan
> >> Cc: Tony Lindgren; Menon, Nishanth; Ghorai, Sukumar; linux-
> >> omap@xxxxxxxxxxxxxxx; linux-mmc@xxxxxxxxxxxxxxx
> >> Subject: Re: [PATCH] Disable the non working eMMC on Zoom2/3
> >>
> >> On Sat, May 8, 2010 at 5:25 AM, Madhusudhan <madhu.cr@xxxxxx> wrote:
> >> >
> >> >
> >> >> -----Original Message-----
> >> >> From: Tony Lindgren [mailto:tony@xxxxxxxxxxx]
> >> >> Sent: Thursday, May 06, 2010 10:31 AM
> >> >> To: Madhusudhan
> >> >> Cc: 'Nishanth Menon'; 'Ghorai, Sukumar'; linux-omap@xxxxxxxxxxxxxxx;
> >> >> linux-mmc@xxxxxxxxxxxxxxx
> >> >> Subject: Re: [PATCH] Disable the non working eMMC on Zoom2/3
> >> >>
> >> >> * Madhusudhan <madhu.cr@xxxxxx> [100505 18:31]:
> >> >> >
> >> >> >
> >> >> > > -----Original Message-----
> >> >> > > From: Tony Lindgren [mailto:tony@xxxxxxxxxxx]
> >> >> >
> >> >> > > And what about this "Simulate multi mmc card as one big" patch?
> >> >> > >
> >> >> > Did not get you, what patch are you referring to?
> >> >>
> >> >> Oops sorry forgot the link:
> >> >>
> >> >> https://patchwork.kernel.org/patch/87944/
> >> >>
> >> > This will not help. I don't know the history of the patch but what
> this
> >> is
> >> > intended for is to support multiple MMC cards connected to a single
> >> > controller. But on the Zoom the eMMC we are talking about is
> connected
> >> to
> >> > MMC2.
> >> >
> >> > Regards,
> >> > Madhu
> >> >
> >> >> Tony
> >> >
> >> > --
> >> > To unsubscribe from this list: send the line "unsubscribe linux-mmc"
> in
> >> > the body of a message to majordomo@xxxxxxxxxxxxxxx
> >> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> >> >
> >>
> >> Hi, Guys
> >>
> >> Just wander whether 16G Micron eMMC works on your platform.
> >> I also have such issue, 16G Micron emmc can not work with read and
> >> write, with data timeout.
> >> While 8G Micron eMMC workable.
> >> Do you have the same issue?
> >
> > [Ghorai] we have 16G eMMC in ZOOM3 and 3630-SDP and its working fine.
> Let me know what board you are using.
> > mmc1: new high speed MMC card at address 0001
> > PM: Adding info for mmc:mmc1:0001
> > mmcblk0: mmc1:0001 STM16G 14.8 GiB
> > PM: Adding info for No Bus:mmcblk0
> >  mmcblk0: p1 p2
> >>
> >> Thanks
> >
> 
> Hi, Ghorai
> 
> Thanks for your valueable info.
> We also enabled Micron 16G eMMC, two issues stuck us before.
> 1. The bus_width should be inited otherwise read ext_csd would be fail.
> 2. The emmc may stay in boot partition and kernel should switch to
> user partition, where filesystem is located.
[Ghorai] 
1. If my understanding is not wrong, then the same problem exists in external MMC card too. 
2. So, can you share your eMMC log, just to check if I have any clue! Or let me know how I can reproduce the issue.

> 
> Thanks
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux