From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from buildserver.ru.mvista.com (unknown [85.21.88.6]) by ozlabs.org (Postfix) with ESMTP id 994BFDDEC0 for ; Fri, 30 Nov 2007 23:43:30 +1100 (EST) Date: Fri, 30 Nov 2007 15:48:01 +0300 From: Anton Vorontsov To: Laurent Pinchart Subject: Re: CPM2 USB host driver Message-ID: <20071130124801.GA13141@localhost.localdomain> References: <200711301145.52926.laurentp@cse-semaphore.com> <20071130141638.4e00258d@kernel.crashing.org> <200711301330.25100.laurentp@cse-semaphore.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf8 In-Reply-To: <200711301330.25100.laurentp@cse-semaphore.com> Cc: mike@compulab.co.il, linuxppc-dev@ozlabs.org Reply-To: avorontsov@ru.mvista.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, Nov 30, 2007 at 01:30:18PM +0100, Laurent Pinchart wrote: > On Friday 30 November 2007 12:16, Vitaly Bordug wrote: > > On Fri, 30 Nov 2007 11:45:49 +0100 > > > > Laurent Pinchart wrote: > > > Hi everybody, > > > > > > Linux USB host support for the CPM, CPM2 and CPM2 pro is far from > > > complete. Many people showed interest on this list (and on > > > linuxppc-embedded) in the past, but nobody managed to complete a > > > driver and get it merged. > > > > that is mainly because of its semi-software nature. However, any approach > > would be helpful I beleive. > > The CPM/CPM2 USB host controller does indeed put some pressure on the CPU. The > PowerQuick III family is much better in that respect as its USB host > controller is EHCI compliant. I didn't yet compare with CPM/CPM2, but I wonder if PQIIPro (MPC8360E) USB controller is similar to cpms?.. I tried to forward-port FHCI from Freescale 2.6.11 kernels. Twice. But these efforts always stumbled over more important tasks. -- Anton Vorontsov email: cbou@mail.ru backup email: ya-cbou@yandex.ru irc://irc.freenode.net/bd2