From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <200006301107.NAA04859@denx.local.net> To: Ole.Reinartz@nokia.com Cc: linuxppc-embedded@lists.linuxppc.org, Tobias.Otto-Adamczak@e-technik.tu-chemnitz.de Subject: Re: ISDN on MPC ? From: Wolfgang Denk Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 In-reply-to: Your message of "Fri, 30 Jun 2000 12:36:32 +0300." Date: Fri, 30 Jun 2000 13:07:57 +0200 Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: In message you wrote: > > AFAIK the MPC860 µP's are designed especially to be used with existing > telecom- designs, including existing ISDN chipsets. There should be support > for SIEMENS' GCI(2) bus and the motorola own bus (forgot the name). There is > also HDLC functionality in the CPM so that you are not forced to use an > external framer. Right, you can handle all this using the SCC's. I know of several commercial solutions that do exactly that. Unfortunately, I don't know of an Open Source project. In our case we estimated that it would be easier (in terms of development effort) to interface an external framer, and re-use existing isdn4linux code as much as possible. Also, using a PCMCIA prototype card, it's much easier to sort out some other problems lioke endianess by running the same code on very similar hardware both on the MPC8xx target and on a normal x86 laptop. > I didnt actually integrate such things yet, but it is a spare time project I > want to start one day. Just let me know if you have any free manpower to offer :-) > In isdn4linux there should be code to access some of the siemens chips (the > ones most of the passive PC- isdn- cards are based on). Perhaps there could > be some driver code you could base your design on. That's what we're doing. Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de "There are things that are so serious that you can only joke about them" - Heisenberg ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/