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From: Ohad Ben-Cohen <ohad@wizery.com>
To: Bing Zhao <bzhao@marvell.com>
Cc: zhangfei gao <zhangfei.gao@gmail.com>,
	Daniel Drake <dsd@laptop.org>,
	"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
	Mike Rapoport <mike@compulab.co.il>,
	Zhangfei Gao <zgao6@marvell.com>
Subject: Re: MMC runtime PM patches break libertas probe
Date: Wed, 8 Jun 2011 17:34:01 +0300	[thread overview]
Message-ID: <BANLkTimZ+Emm6GrTztEaGnjRu92Pam13mQ@mail.gmail.com> (raw)
In-Reply-To: <BANLkTi=qR7bbsnzsCpV=b2C4Ha5Hdb94gQ@mail.gmail.com>

Hi Bing,

On Sat, Jun 4, 2011 at 1:52 AM, Ohad Ben-Cohen <ohad@wizery.com> wrote:
> On Sat, Jun 4, 2011 at 1:28 AM, Bing Zhao <bzhao@marvell.com> wrote:
>> "CMD5 Arg=0" refers to the very first CMD5 sent from host during initialization sequence.
>> This is required because our state machine always expects two CMD5 from host (5, 5, 3, 7, ...).
>
> Great, thanks for confirming this !

I have another question please.

Does the sd8686 require an SDIO I/O reset (CMD52 setting bit 3 of
address 0x6 of the CCCR) to it after powering it on ?

Daniel (cc'ed) is trying to power it off and back on, and it does seem
to work in the first time, without sending a reset. In the second
time, though, the card doesn't answer CMD5 anymore, unless Daniel is
sending it an SDIO I/O reset. I was wondering whether this is an
sd8686 requirement, or whether we have some other issue at hand.

Thanks,
Ohad.

  parent reply	other threads:[~2011-06-08 14:34 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-31 14:29 MMC runtime PM patches break libertas probe Daniel Drake
2010-10-31 14:42 ` Ohad Ben-Cohen
2010-10-31 14:55   ` Daniel Drake
2010-10-31 15:08     ` Ohad Ben-Cohen
2010-10-31 15:10       ` Daniel Drake
2010-10-31 15:16         ` Ohad Ben-Cohen
2010-10-31 15:21           ` Daniel Drake
2010-10-31 15:21           ` Daniel Drake
2010-10-31 15:27             ` Ohad Ben-Cohen
2010-10-31 15:57               ` Daniel Drake
2010-10-31 16:16                 ` Ohad Ben-Cohen
2010-10-31 16:24                   ` Daniel Drake
2010-10-31 19:06                     ` Ohad Ben-Cohen
2010-11-01  8:27                       ` Ohad Ben-Cohen
2010-11-06 21:19                         ` Daniel Drake
2010-11-07  1:48                           ` Nicolas Pitre
2010-11-07 10:19                             ` Daniel Drake
2010-11-07 15:12                               ` Nicolas Pitre
2010-11-07 10:42                           ` Ohad Ben-Cohen
2010-11-07 10:51                             ` Daniel Drake
2010-11-07 13:17                               ` Ohad Ben-Cohen
2010-11-16 13:22                         ` Ohad Ben-Cohen
2010-11-16 14:29                           ` Daniel Drake
2010-11-16 14:49                             ` Ohad Ben-Cohen
2010-11-17  6:46                               ` Mike Rapoport
2010-11-17  7:29                                 ` Ohad Ben-Cohen
2010-11-17 14:54                                   ` Nicolas Pitre
2010-11-16 17:17                           ` Arnd Hannemann
2010-11-16 20:58                             ` Ohad Ben-Cohen
2010-11-16 21:16                               ` Arnd Hannemann
2010-11-16 22:26                                 ` Ohad Ben-Cohen
2011-05-29 16:21                       ` Daniel Drake
2011-05-30  6:52                         ` Ohad Ben-Cohen
2011-05-30  7:01                           ` Daniel Drake
2011-05-30  7:32                             ` Ohad Ben-Cohen
2011-05-30 11:04                               ` zhangfei gao
2011-05-30 11:16                                 ` Ohad Ben-Cohen
2011-06-02  8:39                                   ` Bing Zhao
2011-06-02 18:25                                     ` Ohad Ben-Cohen
2011-06-03 22:28                                       ` Bing Zhao
2011-06-03 22:52                                         ` Ohad Ben-Cohen
2011-06-07 14:34                                           ` Arnd Hannemann
2011-06-07 14:45                                             ` Ohad Ben-Cohen
2011-06-08 14:34                                           ` Ohad Ben-Cohen [this message]
2011-06-10  2:02                                             ` zhangfei gao
2011-06-10  4:28                                               ` Ohad Ben-Cohen
2011-06-11  2:33                                                 ` zhangfei gao
2011-06-11  9:03                                                   ` Ohad Ben-Cohen

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