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From: Wolfram Sang <w.sang@pengutronix.de>
To: Zhu Richard-R65037 <R65037@freescale.com>
Cc: "linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"kernel@pengutronix.de" <kernel@pengutronix.de>,
	"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
	"cjb@laptop.org" <cjb@laptop.org>,
	"avorontsov@ru.mvista.com" <avorontsov@ru.mvista.com>,
	"eric@eukrea.com" <eric@eukrea.com>,
	"linuxzsc@gmail.com" <linuxzsc@gmail.com>,
	Zhao Richard-B20223 <B20223@freescale.com>,
	"Freescale@lists.linaro.org" <Freescale@lists.linaro.org>,
	"eric.miao@linaro.org" <eric.miao@linaro.org>
Subject: Re: [PATCH V3 4/4] mmc: sdhci-esdhc: enable esdhc on imx53
Date: Thu, 3 Mar 2011 11:49:02 +0100	[thread overview]
Message-ID: <20110303104902.GE3649@pengutronix.de> (raw)
In-Reply-To: <010C9052C42A00499CE76D637FA5EE900C82A4@039-SN1MPN1-001.039d.mgd.msft.net>

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> > > > > +/* Abort type definition in the command register  */
> > > > > +#define  SDHCI_CMD_ABORTCMD        0xC0
> > > >
> > > > Won't that belong into sd.h (unless I misunderstood your last mail)?
> > > This is the bit definitions of the ABORTCMD CMD-TYPE on the bit6~7 of
> > CMD register.
> > > Here is the definition of the CMD register derived from SDHC spec. FYI.
> > > D15   D14 D13  D08     D07 D06       D05                  D04
> > D03                       D02         D01 D00
> > > Rsvd  Command  Index   Command Type  Data Present Select  Command Index
> > Check Enable   Command CRC Check Enable  Rsvd        Response Type Select
> >
> > Ack, I found that, too. Exactly because it is in the standard, I thought
> > this should rather go into sd.h than sdhci-esdhc-imx.c. Would be a
> > seperate patch, though.
> >
> Do you means the sdhci.h file?
> I find that the sd.h file doesn't contain the bit definitions stuff of SD HOST CONTROLLER registers.
> The sdhci.h file has them, such as:
> #define SDHCI_COMMAND           0x0E
> #define  SDHCI_CMD_RESP_MASK    0x03
> #define  SDHCI_CMD_CRC          0x08
> #define  SDHCI_CMD_INDEX        0x10
> #define  SDHCI_CMD_DATA         0x20

My idea was that it belongs more to the command definitions, thus sd.h.
But as long as there is nothing to be solved at core-level sdhci.h might
do for now as well.

Regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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  reply	other threads:[~2011-03-03 10:49 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-28 11:32 [PATCH V3 1/4] ARM: imx53_loco: add esdhc device support Richard Zhu
2011-02-28 11:32 ` [PATCH V3 2/4] ARM: imx51/53: add sdhc3/4 clock Richard Zhu
2011-02-28 11:32 ` [PATCH V3 3/4] mmc: sdhci-esdhc: remove SDHCI_QUIRK_NO_CARD_NO_RESET from ESDHC_DEFAULT_QUIRKS Richard Zhu
2011-02-28 14:20   ` Wolfram Sang
2011-03-01  1:25     ` Zhu Richard-R65037
2011-02-28 11:32 ` [PATCH V3 4/4] mmc: sdhci-esdhc: enable esdhc on imx53 Richard Zhu
2011-02-28 14:47   ` Wolfram Sang
2011-03-01  1:51     ` Zhu Richard-R65037
2011-03-01  3:06       ` Eric Miao
2011-03-01 11:31       ` Wolfram Sang
2011-03-02  5:37         ` Zhu Richard-R65037
2011-03-03 10:49           ` Wolfram Sang [this message]
2011-02-28 11:39 ` [PATCH V3 1/4] ARM: imx53_loco: add esdhc device support Zhu Richard-R65037
2011-02-28 13:58 ` Wolfram Sang
  -- strict thread matches above, loose matches on Subject: below --
2011-02-28 11:25 Richard Zhu
2011-02-28 11:25 ` [PATCH V3 4/4] mmc: sdhci-esdhc: enable esdhc on imx53 Richard Zhu

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