Arnaud, On Tue, Dec 14, 2010 at 8:17 PM, Fabio Estevam <festevam@xxxxxxxxx> wrote: > Hi Arnaud, > > On Tue, Dec 14, 2010 at 2:26 PM, Arnaud Patard > <arnaud.patard@xxxxxxxxxxx> wrote: > ... >> >> Please, read again what I said. I'm not talking of .portsc but of >> .init. To reach the ulpi, the portsc register should be set to ulpi mode >> _before_ calling otg_init() in ehci_mxc_drv_probe() but the code is using >> .portsc/setting portsc in ehci_mxc_setup() which is afaik _after_ >> ehci_mxc_drv_probe(). > > Ok, I understand what you mean now and I confirmed what you said: > current code is setting the portsc register after writing to the OTG > viewport. > > The MX31 is by default configured for a USB serial phy, so like you > stated we need first to setup portsc to work in ULPI mode and after > that we can read/write the OTG viewport. I implemented your suggestion and it worked fine on my board. Will submit a patch shortly, so that others can comment and test it. Thanks, Fabio Estevam -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
