* Michael Welling <mwelling@xxxxxxxxxxx> [140721 17:17]: > On Mon, Jul 21, 2014 at 11:38 AM, Michael Welling <mwelling@xxxxxxxxxxx> wrote: > > On Mon, Jul 21, 2014 at 12:09:13AM -0700, Tony Lindgren wrote: > >> * Michael Welling <mwelling@xxxxxxxxxxx> [140718 07:42]: > >> > On Fri, Jul 18, 2014 at 1:38 AM, Tony Lindgren <tony@xxxxxxxxxxx> wrote: > >> > > > >> > > Hmm maybe double check your're booting device tree based kernel > >> > > instead of legacy machine ID based kernel? The legacy booting should > >> > > still work just fine and no changes has been made to it, but it will > >> > > get removed shortly. > >> > > >> > I downloaded the version from the test results and it did boot. > >> > >> OK that's good to hear. > >> > >> > These are combining the uImage and dtb. How do you accomplish this? > >> > >> You need to make sure you have the appended DTB support enabled like > >> we do in omap2plus_defconfig: > >> > >> CONFIG_ARM_APPENDED_DTB=y > >> CONFIG_ARM_ATAG_DTB_COMPAT=y > >> CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y > >> > >> Then just cat zImage board.dtb > /tmp/zImage-dtba and run > >> mkimage to convert it to a uImage: > >> > >> $ mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e 0x80008000 \ > >> -n "Linux" -d /tmp/zImage-dtba /tmp/uImage > >> > > > > I actually discovered this and got LCD video working. Now USB host is > > not working. The only thing that registers is the OHCI/EHCI hosts. > > > > root@som3517:~# lsusb > > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > > > Not sure what the problem is. The USB devices that are plugged in are > > powered but never detected. > > > > Any hints? > > So I got the USB host to work on boot with additional entries in the devicetree. > Documentation/devicetree/bindings/omap-usb-host.txt > > Though the devices work if plugged in at boot, any time a device is > hotplugged then > the device is not detected. It is powered very briefly and then off > without any kernel messages. > > So hints from this point would be good. Sorry no idea on that, maybe send a separate email about that with the USB and PHY people in Cc. Regards, Tony -- 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
