tmio_mmc: Allow 2 byte requests in 4-bit mode
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From: Magnus Damm on 23 Jul 2010 07:10 2010/7/20 Yusuke Goda <yusuke.goda.sx(a)renesas.com>: > Adjust the tmio_mmc block size check to accept 2-byte requests in 4-bit mode. > Tested with the SDHI hardware block included in sh7724. > > Signed-off-by: Yusuke Goda <yusuke.goda.sx(a)renesas.com> With this patch applied I can use SDIO cards in polling mode with the tmio-mmc driver. Tested with the SDHI hardware block on sh7372 using the b43 driver and BCM4318 hardware and the unfortunately out-of-tree AR6002 "android" driver. Acked-by: Magnus Damm <damm(a)opensource.se> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Ian Molton on 27 Jul 2010 04:00 This change needs to be modified to test what hardware is present. this wont work on my hardware TTBOMK. -- Ian Molton Linux, Automotive, and other hacking: http://www.mnementh.co.uk/ On 23 July 2010 12:05, Magnus Damm <magnus.damm(a)gmail.com> wrote: > 2010/7/20 Yusuke Goda <yusuke.goda.sx(a)renesas.com>: >> Adjust the tmio_mmc block size check to accept 2-byte requests in 4-bit mode. >> Tested with the SDHI hardware block included in sh7724. >> >> Signed-off-by: Yusuke Goda <yusuke.goda.sx(a)renesas.com> > > With this patch applied I can use SDIO cards in polling mode with the > tmio-mmc driver. Tested with the SDHI hardware block on sh7372 using > the b43 driver and BCM4318 hardware and the unfortunately out-of-tree > AR6002 "android" driver. > > Acked-by: Magnus Damm <damm(a)opensource.se> > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Magnus Damm on 27 Jul 2010 04:10
> On 23 July 2010 12:05, Magnus Damm <magnus.damm(a)gmail.com> wrote: >> 2010/7/20 Yusuke Goda <yusuke.goda.sx(a)renesas.com>: >>> Adjust the tmio_mmc block size check to accept 2-byte requests in 4-bit mode. >>> Tested with the SDHI hardware block included in sh7724. >>> >>> Signed-off-by: Yusuke Goda <yusuke.goda.sx(a)renesas.com> >> >> With this patch applied I can use SDIO cards in polling mode with the >> tmio-mmc driver. Tested with the SDHI hardware block on sh7372 using >> the b43 driver and BCM4318 hardware and the unfortunately out-of-tree >> AR6002 "android" driver. >> >> Acked-by: Magnus Damm <damm(a)opensource.se> >> Hi Ian, Thanks for your feedback! On Tue, Jul 27, 2010 at 4:57 PM, Ian Molton <ian(a)mnementh.co.uk> wrote: > This change needs to be modified to test what hardware is present. > this wont work on my hardware TTBOMK. Ok, just curious, on which platform did you test it? On SDHI hardware the 2-byte access works just fine in 4-bit mode. Thanks, / magnus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |