Hello All, I have a question about the updates/changes that have been made to the USB OTG support in the latest 3.9-rc1 kernel My platform is using an AM3517 processor and I am in the progress of moving from 3.6 to 3.9 kernel because I need some of the iio support in the latest 3.9 kernel. The last hurdle I have is in trying to get the USB OTG support working in HOST mode, as I am using it to connect a storage device to. If I configure the kernel in the same way as I do for 3.6 it doesn't bring the interface up. The log output is ; [ 0.897552] usbcore: registered new interface driver carl9170 [ 0.903900] usbcore: registered new interface driver cdc_ether [ 0.910400] usbcore: registered new interface driver cdc_ncm [ 0.917327] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.924499] ehci-omap.0 supply hsusb0 not found, using dummy regulator [ 0.931549] ehci-omap ehci-omap.0: OMAP-EHCI Host Controller [ 0.937927] ehci-omap ehci-omap.0: new USB bus registered, assigned bus number 1 [ 1.949218] ehci-omap ehci-omap.0: irq 93, io mem 0x48064800 [ 1.968811] ehci-omap ehci-omap.0: USB 2.0 started, EHCI 1.00 [ 1.975067] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 1.982269] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 1.989929] usb usb1: Product: OMAP-EHCI Host Controller [ 1.995544] usb usb1: Manufacturer: Linux 3.9.0-rc1 ehci_hcd [ 2.001556] usb usb1: SerialNumber: ehci-omap.0 [ 2.007507] hub 1-0:1.0: USB hub found [ 2.011596] hub 1-0:1.0: 3 ports detected [ 2.016967] usbcore: registered new interface driver cdc_wdm [ 2.023010] Initializing USB Mass Storage driver... [ 2.028472] usbcore: registered new interface driver usb-storage [ 2.034851] USB Mass Storage support registered. [ 2.040283] usbcore: registered new interface driver usbserial [ 2.046447] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host) [ 2.054107] 6Waiting for PHY clock good... [ 2.070343] mousedev: PS/2 mouse device common for all mice The output from 3.6 shows usb2 being initialised and recognising the connected device. [ 1.369934] usbcore: registered new interface driver cdc_ether [ 1.376373] usbcore: registered new interface driver cdc_ncm [ 1.383361] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 1.390380] ehci-omap.0 supply hsusb0 not found, using dummy regulator [ 1.397399] ehci-omap ehci-omap.0: OMAP-EHCI Host Controller [ 1.403717] ehci-omap ehci-omap.0: new USB bus registered, assigned bus number 1 [ 2.443176] ehci-omap ehci-omap.0: irq 77, io mem 0x48064800 [ 2.458770] ehci-omap ehci-omap.0: USB 2.0 started, EHCI 1.00 [ 2.464935] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 2.472106] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 2.479675] usb usb1: Product: OMAP-EHCI Host Controller [ 2.485290] usb usb1: Manufacturer: Linux 3.6.0-rc6 ehci_hcd [ 2.491241] usb usb1: SerialNumber: ehci-omap.0 [ 2.497039] hub 1-0:1.0: USB hub found [ 2.501098] hub 1-0:1.0: 3 ports detected [ 2.506134] usbcore: registered new interface driver cdc_wdm [ 2.512329] usbcore: registered new interface driver uas [ 2.517913] Initializing USB Mass Storage driver... [ 2.523345] usbcore: registered new interface driver usb-storage [ 2.529663] USB Mass Storage support registered. [ 2.534484] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host) [ 2.541778] 6Waiting for PHY clock good... [ 2.560424] musb-hdrc musb-hdrc: MUSB HDRC host driver [ 2.566223] musb-hdrc musb-hdrc: new USB bus registered, assigned bus number 2 [ 2.574035] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002 [ 2.581176] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 2.588775] usb usb2: Product: MUSB HDRC host driver [ 2.593994] usb usb2: Manufacturer: Linux 3.6.0-rc6 musb-hcd [ 2.599945] usb usb2: SerialNumber: musb-hdrc [ 2.605651] hub 2-0:1.0: USB hub found [ 2.609680] hub 2-0:1.0: 1 port detected [ 2.614166] musb-hdrc musb-hdrc: USB Host mode controller at d080e000 using PIO, IRQ 71 [ 2.623504] mousedev: PS/2 mouse device common for all mice Is there a known issue with the HOST support for OTG ? Or could there be something missing from the config ? I have looked but can't see anything obvious. Any help greatly appreciated. Thanks Marc -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
