From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.dtechlabs.com (ip66-104-11-166.z11-104-66.customer.algx.net [66.104.11.166]) by ozlabs.org (Postfix) with SMTP id D1182DDE26 for ; Sat, 15 Sep 2007 05:26:28 +1000 (EST) MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C7F705.246A69C8" Subject: SPI INT line Date: Fri, 14 Sep 2007 15:26:22 -0400 Message-ID: <8140AAF341CC904BA92C3D6A5A1909782F0E9D@ditech-1.ditechllc.com> From: "Nicholas Hickman" To: List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This is a multi-part message in MIME format. ------_=_NextPart_001_01C7F705.246A69C8 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable We are developing a system around the mpc8270. On this system we are using an ISDN controller connected to the SPI interface of the 8270. For the INT line coming from the controller, should this be connected to one of the IRQ lines that we typically use for PCI bus, or should we connect it to one of the GPIO Group C pins? Currently we have it to IRQ4, but I am worried that this is incorrect. =20 =20 Thanks in advance. Nicholas Hickman =20 ------_=_NextPart_001_01C7F705.246A69C8 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

We are=20 developing a system around the mpc8270. On this system we = are using=20 an ISDN controller connected to the SPI interface of the 8270. For = the INT=20 line coming from the controller, should this be connected to one of the = IRQ=20 lines that we typically use for PCI bus, or should we connect it to = one of=20 the GPIO Group = C pins? =20 Currently we have it to IRQ4, but I am worried that this is=20 incorrect.

Thanks = in=20 advance.

Nicholas=20 Hickman

------_=_NextPart_001_01C7F705.246A69C8-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.186]) by ozlabs.org (Postfix) with ESMTP id 12938DDDFD for ; Sat, 15 Sep 2007 23:42:29 +1000 (EST) Message-ID: <46EBE143.60106@anagramm.de> Date: Sat, 15 Sep 2007 15:42:27 +0200 From: Clemens Koller MIME-Version: 1.0 To: Nicholas Hickman Subject: Re: SPI INT line References: <8140AAF341CC904BA92C3D6A5A1909782F0E9D@ditech-1.ditechllc.com> In-Reply-To: <8140AAF341CC904BA92C3D6A5A1909782F0E9D@ditech-1.ditechllc.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Nicholas Hickman schrieb: > We are developing a system around the mpc8270. On this system we are > using an ISDN controller connected to the SPI interface of the 8270. > For the INT line coming from the controller, should this be connected to > one of the IRQ lines that we typically use for PCI bus, or should we > connect it to one of the GPIO Group C pins? Currently we have it to > IRQ4, but I am worried that this is incorrect. I would use an otherwise unused (even in reference 82xx platforms) IRQ line and have a look into the kernel and see which IRQs are free so minimize/eliminate extra patches. Regards, -- Clemens Koller _______________________________ R&D Imaging Devices Anagramm GmbH Rupert-Mayer-Str. 45/1 81379 Muenchen Germany http://www.anagramm-technology.com Phone: +49-89-741518-50 Fax: +49-89-741518-19