From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ctb-mesg7.saix.net (ctb-mesg7.saix.net [196.25.240.77]) by ozlabs.org (Postfix) with ESMTP id 18F7567A67 for ; Tue, 11 Apr 2006 21:46:04 +1000 (EST) Received: from stefanlaptop (dsl-165-249-230.telkomadsl.co.za [165.165.249.230]) by ctb-mesg7.saix.net (Postfix) with SMTP id 78FB03867 for ; Tue, 11 Apr 2006 12:30:30 +0200 (SAST) Message-ID: <002301c65d52$fd7c6fd0$1100a8c0@stefanlaptop> From: "Stefan Meyer" To: Subject: Linux kernel for MPC834X platform Date: Tue, 11 Apr 2006 12:30:32 +0200 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0020_01C65D63.B98DA0D0" 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_000_0020_01C65D63.B98DA0D0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi All Pardon the intrusion if this is not the correct way to get the relevant = information, but I am relatively new to kernel hacking. Anyway here goes my question: I am getting a Freescale MPC8343 based board up and running and have = been using the BSP (with patched 2.6.11 kernel) release by Freescale = with great success. However when I tried to use the USB ISO transactions it seems to be non = functional. I have connected a known good working codec (tested on my = PC's usb) and tried to access it via the low level sound driver = (/dev/dsp) but it only creates garbled noise.=20 In the meanwhile, I have noticed that the official kernel release 2.6.17 = also start supporting the MPC834X platform and would rather like to = persue that avenue to get my problems addressed (hopefully).=20 I have downloaded the latest 2.6.17 kernel and got it going with the = configuration for MPC834x_sys, with relation to booting and ethernet = comms.=20 However there are clearly no provision in the USB driver for setting up = the usb clocks and ports (which is of course MPC834x specific).=20 I have tried to hack it by inserting approriate code form the 2.6.11 = freescale kernel but with very little success.=20 On inspection of the 2.6.11 kernel from Freescale I have also noticed = that the USB core drivers were heavily modified around DMA buffer = management, although the 2.6.17 had no such hacks in place. =20 My question simply relates to the status of the MPC834x implementation = on the 2.6.17 kernel in so far that it is operational and being tested = on hardware platforms. Could you please direct me to the persons(s) who = have experience with this platform ? Regards Stefan ------=_NextPart_000_0020_01C65D63.B98DA0D0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

Hi All

Pardon the intrusion if this is not the = correct way=20 to get the relevant information, but I am relatively new to kernel=20 hacking.

Anyway here goes my = question:

I am getting a Freescale MPC8343 based = board up and=20 running and have been using the BSP (with patched 2.6.11 = kernel) release by=20 Freescale with great success.

However when I tried to use the USB ISO = transactions it seems to be non functional. I have connected a = known good=20 working codec (tested on my PC's usb) and tried to access it via the low = level=20 sound driver (/dev/dsp) but it only creates garbled = noise.

In the meanwhile, I have noticed that = the official=20 kernel release 2.6.17 also start supporting the MPC834X platform and = would=20 rather like to persue that avenue to get my problems addressed = (hopefully).=20

I have downloaded the latest 2.6.17 = kernel and got=20 it going with the configuration for MPC834x_sys, with = relation to=20 booting and ethernet comms.

However there are clearly no provision = in the USB=20 driver for setting up the usb clocks and ports (which is of course = MPC834x=20 specific).

I have tried to hack it by inserting = approriate=20 code form the 2.6.11 freescale kernel but with very little success.=20

On inspection of the 2.6.11 kernel from = Freescale=20 I have also noticed that the USB core drivers were heavily = modified=20 around DMA buffer management, although the 2.6.17 had no such hacks in = place.=20

My question simply relates to the = status of the=20 MPC834x implementation on the 2.6.17 kernel in so far that it is = operational and=20 being tested on hardware platforms. Could you please direct me to = the=20 persons(s) who have experience with this platform ?

Regards

Stefan

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