From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from outbound7-sin-R.bigfish.com (outbound-sin.frontbridge.com [207.46.51.80]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "*.bigfish.com", Issuer "*.bigfish.com" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 477C8DE0D2 for ; Fri, 16 May 2008 04:56:40 +1000 (EST) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Subject: RE: Using GPIO Date: Thu, 15 May 2008 11:56:35 -0700 In-reply-to: <20080515183910.6B40A75007E@mail106-va3.bigfish.com> References: <02f401c8b6a9$b1e062e0$ad289e86@LPSC0173W> <20080515183910.6B40A75007E@mail106-va3.bigfish.com> From: "Stephen Neuendorffer" To: "John Bonesio" , "Guillaume Dargaud" , Message-Id: <20080515185637.587AF43004B@mail186-sin.bigfish.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , I don't think the GPIO driver has device tree bindings yet in the driver for ARCH=3Dpowerpc. Steve > -----Original Message----- > From: linuxppc-dev-bounces+stephen.neuendorffer=3Dxilinx.com@ozlabs.org [mailto:linuxppc-dev- > bounces+stephen.neuendorffer=3Dxilinx.com@ozlabs.org] On Behalf Of John Bonesio > Sent: Thursday, May 15, 2008 11:39 AM > To: Guillaume Dargaud; linuxppc-dev@ozlabs.org > Subject: RE: Using GPIO >=20 >=20 > Hi Guillaume, >=20 > If you're using arch/powerpc, my understanding is that > CONFIG_XILINX_GPIO needs to be enabled as well as having the right info > in the dts file. >=20 > Right now I'll have to defer to others to tell you what's needed in the > dts file. >=20 > If you're using arch/ppc, I believe you just need CONFIG_XILINX_GPIO > enabled. >=20 > When the system boots up, you see a message on the console when the GPIO > driver initializes. >=20 > This is not exactly a tutorial. Hopefully this still helps, >=20 > - John >=20 > -----Original Message----- > From: linuxppc-dev-bounces+john.bonesio=3Dxilinx.com@ozlabs.org > [mailto:linuxppc-dev-bounces+john.bonesio=3Dxilinx.com@ozlabs.org] On > Behalf Of Guillaume Dargaud > Sent: Thursday, May 15, 2008 9:35 AM > To: linuxppc-dev@ozlabs.org > Subject: Using GPIO >=20 > Hello all, > I'm trying to use the Xilinx GPIO from a user program. > Since I haven't managed to compile their example (simon.c is given > without a > makefile), I wanted to try using /dev/gpio... >=20 > So I added > /dev/gpio0 c 666 0 0 10 185 - - - > to device_table.txt when I generated my root filesystem with buildroot, > but > apparently this leads nowhere as it's not visible in /proc/devices. >=20 > Is there some example or tutorial on how to use CONFIG_XILINX_GPIO ? > Either > as a device or as API calls... > -- > Guillaume Dargaud > http://www.gdargaud.net/ >=20 >=20 > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-dev >=20 >=20 > This email and any attachments are intended for the sole use of the named recipient(s) and contain(s) > confidential information that may be proprietary, privileged or copyrighted under applicable law. If > you are not the intended recipient, do not read, copy, or forward this email message or any > attachments. Delete this email message and any attachments immediately. >=20 > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-dev This email and any attachments are intended for the sole use of the named= recipient(s) and contain(s) confidential information that may be= proprietary, privileged or copyrighted under applicable law. If you are= not the intended recipient, do not read, copy, or forward this email= message or any attachments. Delete this email message and any attachments= immediately.