From: "Subhash Jadavani" <subhashj@codeaurora.org>
To: 'Subhash Jadavani' <subhashj@codeaurora.org>,
linux-mmc@vger.kernel.org, prakity@marvell.com,
arindam.nath@amd.com
Subject: RE: Question regarding SDR104 bus speed mode
Date: Mon, 18 Jul 2011 10:51:52 +0530 [thread overview]
Message-ID: <000001cc450a$9c94aac0$d5be0040$@org> (raw)
In-Reply-To: <dd8e0dfbe0f4d466cc39fb67a2a4e4a3.squirrel@www.codeaurora.org>
Arindam/Philips,
Can you help me with below query?
Regards,
Subhash
> -----Original Message-----
> From: linux-mmc-owner@vger.kernel.org [mailto:linux-mmc-
> owner@vger.kernel.org] On Behalf Of Subhash Jadavani
> Sent: Thursday, July 14, 2011 5:09 PM
> To: linux-mmc@vger.kernel.org; prakity@marvell.com;
> arindam.nath@amd.com
> Subject: Question regarding SDR104 bus speed mode
>
> Hi Arindam, Philips and All,
>
> According to SD 3.0 spec (section 3.9.6), cards may require current
> upto
> 800 mA while running in SDR104. However Max. supported current from
> PMIC
> regulator connected to sd card slot on my board is 600mA.
>
> I have these questions:
> 1. So does this mean we can't support the SDR104 mode if regulator
> current
> driving capacity is not upto 800 mA?
>
> 2. I am able to make SD card run in SDR104 mode even if the max.
> current
> supplied by regulator is upto 600 mA. So is this 800mA requirement is
> **must** condition to support SDR104 mode reliably?
>
> Regards,
> Subhash
>
> --
> Sent by a consultant of the Qualcomm Innovation Center, Inc.
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora
> Forum.
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2011-07-18 5:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-14 11:38 Question regarding SDR104 bus speed mode Subhash Jadavani
2011-07-18 5:21 ` Subhash Jadavani [this message]
2011-07-18 15:27 ` Philip Rakity
2011-07-20 7:22 ` Subhash Jadavani
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='000001cc450a$9c94aac0$d5be0040$@org' \
--to=subhashj@codeaurora.org \
--cc=arindam.nath@amd.com \
--cc=linux-mmc@vger.kernel.org \
--cc=prakity@marvell.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox