From: s.trumtrar@pengutronix.de (Steffen Trumtrar) Date: Tue, 21 Oct 2014 19:10:33 +0200 Subject: [PATCHv3 1/2] ARM: dts: socfpga: Fix SD card detect In-Reply-To: <1413908111-28165-2-git-send-email-dinguyen@opensource.altera.com> References: <1413908111-28165-1-git-send-email-dinguyen@opensource.altera.com> <1413908111-28165-2-git-send-email-dinguyen@opensource.altera.com> Message-ID: <20141021171033.GK10262@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi! On Tue, Oct 21, 2014 at 11:15:10AM -0500, dinguyen at opensource.altera.com wrote: > From: Dinh Nguyen > > Without this patch, the booting the SOCFPGA platform would hang at the > SDMMC driver loading. The issue, debugged by Doug Anderson, turned out > to be that the GPIO bank used by the SD card-detect was not set to > status="okay". > > Suggested-by: Doug Anderson > Signed-off-by: Dinh Nguyen > --- > v3: Correctly degugged the issue to be a gpio node not having status="okay" > --- > arch/arm/boot/dts/socfpga_cyclone5_socdk.dts | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts > index d7296a5..03a3745 100644 > --- a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts > +++ b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts > @@ -37,6 +37,12 @@ > */ > ethernet0 = &gmac1; > }; > + > + soc { > + gpio at ff709000 { > + status = "okay"; > + }; > + }; > }; > Looks weird. Don't you need to enable the GPIO bank instead: &gpio1 { status = "okay"; } ??? Regards, Steffen -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |