From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthias Fuchs Date: Tue, 26 Aug 2008 18:07:08 +0200 Subject: [U-Boot] [U-Boot-Users] Multiple USB controller support under Uboot In-Reply-To: <5c9cd53b0808251155o375ce336g6d83bbc4a2ee04dc@mail.gmail.com> References: <5c9cd53b0808251155o375ce336g6d83bbc4a2ee04dc@mail.gmail.com> Message-ID: <200808261807.08620.matthias.fuchs@esd-electronics.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Mike, U-Boot currently only supports one USB host controller at a time. So it's wrong to say that U-Boot finds only one, but correct is, that U-Boot only uses one. Commands to switch between different controllers or multi controller support is missing. You could add this feature ;-) Matthias On Monday 25 August 2008 20:55, mike zheng wrote: > Hello, > > I am using ISP156x USB PCI controller with Uboot. Right now, the code > can find only 1 root hub when I use "usb inf" or "usb tree" command to > check the USB tree. If I list the PCI device, it shows there are 2 > OHCI and 1 EHCI host controller. Anyone knows why I have only one root > hub? What shall the USB tree looks like for ISP156x USB PCI host > controller? > Thanks, > > Mike