From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Tue, 29 May 2007 09:11:22 +0000 (GMT) From: axelnico@yahoo.fr Subject: USB Host at full speed To: Linuxppc-embedded@ozlabs.org MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-871248480-1180429882=:70353" Message-ID: <662798.70353.qm@web26515.mail.ukl.yahoo.com> List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --0-871248480-1180429882=:70353 Content-Type: text/plain; charset=ascii Hello ALL, I m currently trying to force the USB host controller from MPC8349 to only work at full speed i.e. whatever is the connected device, the bandwidth should be 12MB. I thought i could perform it just by setting some registers to right value but it aren't working. I fear i have to force software to always use TT and split transfer but i dont know exactly where to start.. If anybody could help, would be so great!! Thank you, Pierre-Axel. _____________________________________________________________________________ Ne gardez plus qu'une seule adresse mail ! Copiez vos mails vers Yahoo! Mail --0-871248480-1180429882=:70353 Content-Type: text/html; charset=ascii

Hello ALL,

I m currently trying to force the USB host controller from MPC8349 to only work at full speed i.e. whatever is the connected device, the bandwidth should be 12MB.
I thought i could perform it just by setting some registers to right value but it aren't working.
I fear i have to force software to always use TT and split transfer but i dont know exactly where to start..

If anybody could help, would be so great!!

Thank you,
Pierre-Axel.

Ne gardez plus qu'une seule adresse mail ! Copiez vos mails vers Yahoo! Mail --0-871248480-1180429882=:70353-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: USB Host at full speed Date: Tue, 29 May 2007 19:01:32 +0800 Message-ID: <989B956029373F45A0B8AF0297081890D2A07A@zch01exm26.fsl.freescale.net> In-Reply-To: <662798.70353.qm@web26515.mail.ukl.yahoo.com> From: "Li Yang-r58472" To: , Cc: linux-usb-devel@lists.sourceforge.net List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > -----Original Message----- > From: linuxppc-embedded-bounces+leoli=3Dfreescale.com@ozlabs.org > [mailto:linuxppc-embedded-bounces+leoli=3Dfreescale.com@ozlabs.org] On Behalf Of > axelnico@yahoo.fr > Sent: Tuesday, May 29, 2007 5:11 PM > To: Linuxppc-embedded@ozlabs.org > Subject: USB Host at full speed >=20 > Hello ALL, >=20 > I m currently trying to force the USB host controller from MPC8349 to only work > at full speed i.e. whatever is the connected device, the bandwidth should be 12MB. > I thought i could perform it just by setting some registers to right value but it > aren't working. > I fear i have to force software to always use TT and split transfer but i dont > know exactly where to start.. >=20 > If anybody could help, would be so great!! Your question can be interpreted as how to force EHCI host driver to work in full speed. Usb-devel list cc'ed should be a better place for such a question. - Leo From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Oliver Neukum To: linux-usb-devel@lists.sourceforge.net Subject: Re: [linux-usb-devel] USB Host at full speed Date: Tue, 29 May 2007 13:07:00 +0200 References: <989B956029373F45A0B8AF0297081890D2A07A@zch01exm26.fsl.freescale.net> In-Reply-To: <989B956029373F45A0B8AF0297081890D2A07A@zch01exm26.fsl.freescale.net> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Message-Id: <200705291307.01037.oliver@neukum.org> Cc: axelnico@yahoo.fr, Linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Am Dienstag, 29. Mai 2007 13:01 schrieb Li Yang-r58472: > Your question can be interpreted as how to force EHCI host driver to > work in full speed. =A0Usb-devel list cc'ed should be a better place for > such a question. It can't, which is the reason you pair EHCI with OHCI/UHCI. Regards Oliver