From: Hector Palacios <hector.palacios@digi.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] mmc erase fails from U-Boot command line
Date: Mon, 19 Oct 2015 13:06:45 +0200 [thread overview]
Message-ID: <5624CEC5.8040901@digi.com> (raw)
In-Reply-To: <5620E3A7.7040909@defengcorp.com>
Dear Cliff,
On 10/16/2015 01:46 PM, Cliff Brust wrote:
> I have the need to erase our eMMC from U-Boot on our custom board due to a hard wired
> boot up configuration. Our design is based on the Freescale i.MX6Q SabreSD Board
> reference design. The bottom line is the U-Boot command "mmc erase" is failing with
> the error "Timeout waiting for DAT0 to go high!". Here's a list of the U-Boot
> commands issued and the result of each so you can see what is going on.
> ----------------------------------------
> => mmc list
> FSL_SDHC: 0
> FSL_SDHC: 1 (SD)
> FSL_SDHC: 2 (eMMC)
>
> => mmc dev 2
> switch to partitions #0, OK
> mmc2(part 0) is current device
>
> => mmc info
> Device: FSL_SDHC
> Manufacturer ID: 45
> OEM: 100
> Name: SEM08
> Tran Speed: 52000000
> Rd Block Len: 512
> MMC version 4.4.1
> High Capacity: Yes
> Capacity: 7.4 GiB
> Bus Width: 8-bit
> Erase Group Size: 512 KiB
> HC WP Group Size: 16 MiB
> User Capacity: 7.4 GiB WRREL
> Boot Capacity: 2 MiB ENH
> RPMB Capacity: 128 KiB ENH
>
> => mmc erase 0 0x400
> MMC erase: dev # 2, block # 0, count 1024 ...
> Timeout waiting for DAT0 to go high!
> mmc erase failed
> 0 blocks erased: ERROR
> ----------------------------------------
>
> Any insight on this issue is greatly appreciated.
> Thanks, Cliff
This issue is reproducible on Freescale's SABRESD on both SD card and eMMC with
v2015.04. The issue has been there always, I believe.
Apparently the command erases the first block, but the operation returns an error, so
it aborts and it doesn't continue erasing futher blocks.
I opened a similar thread a while ago:
http://lists.denx.de/pipermail/u-boot/2015-June/215912.html
Regards,
--
Hector Palacios
next prev parent reply other threads:[~2015-10-19 11:06 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-16 11:46 [U-Boot] mmc erase fails from U-Boot command line Cliff Brust
2015-10-19 11:06 ` Hector Palacios [this message]
2015-11-12 20:56 ` Fabio Estevam
2015-11-13 12:26 ` Palacios, Hector
2015-11-13 14:37 ` Fabio Estevam
2015-11-16 15:23 ` Fabio Estevam
2015-11-16 15:30 ` Fabio Estevam
2015-12-01 19:05 ` Eric Nelson
2015-12-02 17:23 ` Fabio Estevam
2015-12-02 18:47 ` Eric Nelson
2015-12-02 18:52 ` Fabio Estevam
2015-12-02 19:28 ` Eric Nelson
2015-12-02 19:53 ` Fabio Estevam
2015-12-04 16:35 ` Eric Nelson
2015-12-04 16:37 ` Fabio Estevam
2015-12-04 22:42 ` Eric Nelson
2015-12-05 0:19 ` Fabio Estevam
2015-12-07 0:21 ` Fabio Estevam
2015-12-07 14:36 ` Eric Nelson
2015-12-02 19:37 ` Michael Trimarchi
2015-12-02 19:54 ` Fabio Estevam
2015-12-02 20:00 ` Michael Trimarchi
2015-12-04 16:08 ` Eric Nelson
2015-12-04 16:50 ` Eric Nelson
2015-12-04 17:06 ` Michael Trimarchi
2015-12-07 14:50 ` [U-Boot] [PATCH] mmc: update MMC_ERASE argument to match Linux kernel Eric Nelson
2015-12-09 10:55 ` Hector Palacios
2015-12-22 9:55 ` Fabio Estevam
2016-01-04 22:23 ` [U-Boot] " Tom Rini
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5624CEC5.8040901@digi.com \
--to=hector.palacios@digi.com \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.