sdhci-esdhc-imx and SDIO interrupts

sdhci-esdhc-imx and SDIO interrupts

[Per-Henrik Lundblom]

Hi,

I'm working with a driver for an SDIO Wireless LAN card and just tried
it out on an i.MX35 based development board (Phytec PCM-043). My
impression is that the sdhci-esdhc-imx driver doesn't support SDIO
interrupts, is that correct?

Regards,

PH


--
Per-Henrik Lundblom           epost: ph@whatever.nu
hemsida: www.whatever.nu

Re: sdhci-esdhc-imx and SDIO interrupts

[Robert Schwebel]

On Wed, Aug 31, 2011 at 02:09:12PM +0200, Per-Henrik Lundblom wrote:
> I'm working with a driver for an SDIO Wireless LAN card and just tried
> it out on an i.MX35 based development board (Phytec PCM-043). My
> impression is that the sdhci-esdhc-imx driver doesn't support SDIO
> interrupts, is that correct?

I think we didn't test this on the PCM043 so far, so it probably won't
work without further activities.

rsc
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Re: sdhci-esdhc-imx and SDIO interrupts

[Per-Henrik Lundblom]

* Robert Schwebel <r.schwebel@pengutronix.de> [110831 17:50]:

> > I'm working with a driver for an SDIO Wireless LAN card and just tried
> > it out on an i.MX35 based development board (Phytec PCM-043). My
> > impression is that the sdhci-esdhc-imx driver doesn't support SDIO
> > interrupts, is that correct?
> 
> I think we didn't test this on the PCM043 so far, so it probably won't
> work without further activities.

Just having a quick look at the code and a few printouts from sdhci.c
indicates that SDIO IRQs are enabled but in the end the eSDHC controller
doesn't report any IRQs. On the other hand, the IRQ handling for SDIO
IRQs in sdhci.c doesn't follow the steps described in the i.MX35
Reference Manual (but that doesn't explain why there is not one single
SDIO IRQ reported).

/PH

--
Per-Henrik Lundblom           epost: ph@whatever.nu
hemsida: www.whatever.nu

RE: sdhci-esdhc-imx and SDIO interrupts

[Lin Tony-B19295]

I commit a patch to fix this issue. Did you update your code? 

> -----Original Message-----
> From: linux-mmc-owner@vger.kernel.org [mailto:linux-mmc-
> owner@vger.kernel.org] On Behalf Of Per-Henrik Lundblom
> Sent: Thursday, September 01, 2011 12:34 AM
> To: linux-mmc@vger.kernel.org
> Subject: Re: sdhci-esdhc-imx and SDIO interrupts
> 
> * Robert Schwebel <r.schwebel@pengutronix.de> [110831 17:50]:
> 
> > > I'm working with a driver for an SDIO Wireless LAN card and just
> > > tried it out on an i.MX35 based development board (Phytec PCM-043).
> > > My impression is that the sdhci-esdhc-imx driver doesn't support
> > > SDIO interrupts, is that correct?
> >
> > I think we didn't test this on the PCM043 so far, so it probably won't
> > work without further activities.
> 
> Just having a quick look at the code and a few printouts from sdhci.c
> indicates that SDIO IRQs are enabled but in the end the eSDHC controller
> doesn't report any IRQs. On the other hand, the IRQ handling for SDIO
> IRQs in sdhci.c doesn't follow the steps described in the i.MX35
> Reference Manual (but that doesn't explain why there is not one single
> SDIO IRQ reported).
> 
> /PH
> 
> --
> Per-Henrik Lundblom           epost: ph@whatever.nu
> hemsida: www.whatever.nu
> 
> --
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Re: sdhci-esdhc-imx and SDIO interrupts

[Per-Henrik Lundblom]

* Lin Tony-B19295 <B19295@freescale.com> [110901 07:31]:

> I commit a patch to fix this issue. Did you update your code? 

Sorry for my stupid question but where did you commit that patch?

/PH

--
Per-Henrik Lundblom           epost: ph@whatever.nu
hemsida: www.whatever.nu

RE: sdhci-esdhc-imx and SDIO interrupts

[Lin Tony-B19295]

Chris ball's tree.

> -----Original Message-----
> From: linux-mmc-owner@vger.kernel.org [mailto:linux-mmc-
> owner@vger.kernel.org] On Behalf Of Per-Henrik Lundblom
> Sent: Thursday, September 01, 2011 2:46 PM
> To: linux-mmc@vger.kernel.org
> Subject: Re: sdhci-esdhc-imx and SDIO interrupts
> 
> * Lin Tony-B19295 <B19295@freescale.com> [110901 07:31]:
> 
> > I commit a patch to fix this issue. Did you update your code?
> 
> Sorry for my stupid question but where did you commit that patch?
> 
> /PH
> 
> --
> Per-Henrik Lundblom           epost: ph@whatever.nu
> hemsida: www.whatever.nu
> 
> --
> 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

Re: sdhci-esdhc-imx and SDIO interrupts

[Per-Henrik Lundblom]

* Lin Tony-B19295 <B19295@freescale.com> [110901 09:34]:

> Chris ball's tree.

Thanks! Merged relevant parts with 2.6.93.4 and the mach-mx3 platform
and now it seems like SDIO interrupts are working fine. Sweet :)

/PH

--
Per-Henrik Lundblom           epost: ph@whatever.nu
hemsida: www.whatever.nu