From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Pattison Date: Sat, 31 May 2014 17:13:56 -0700 Subject: [Buildroot] new TI kernel version for beaglebone black In-Reply-To: <538A0575.8000303@gmail.com> References: <5388F5A2.1080008@ethertek.ca> <5389CDB9.3080209@gmail.com> <5389F864.80909@ethertek.ca> <538A0575.8000303@gmail.com> Message-ID: <538A7044.3030705@ethertek.ca> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net On 5/31/2014 9:38 AM, Hadrien Boutteville wrote: > Dan, > > On Sat, 31 May 2014 08:42:28 -0700, Dan Pattison wrote: >> On 5/31/2014 5:40 AM, Hadrien Boutteville wrote: >>> Hello Dan, >>> >>> On Fri, 30 May 2014 14:18:26 -0700, Dan Pattison wrote: >>>> I have a question that is probably not 100% buildroot related, but was >>>> hoping to get some help. I am using buildroot to build a kernel and >>>> rootFS for a beaglebone black. Buildroot is awesome and builds >>>> everything fine. The board boots up and all packages work properly. >>>> Unfortunately, USB seems to be badly broken. In the kernel I have USB >>>> driver enabled and USB Announce New Devices turned on. Googling around I >>>> find several people with the same problem, hotplug does not work at all, >>>> and no device I have tried shows up in dmesg or lsusb on cold or warm >>>> boot. A band aid is to use a powered USB hub (have not tried that). Some >>>> guys on the beagleboard.org IRC say to try a newer kernel version (3.14 >>>> or >) because beaglebone USB is fixed in newer kernel versions. Current >>>> buildroot beaglebone black kernel version is 3.12.10 >>>> >>>> In buildroot I used make beaglebone_defconfig. >>>> Under the Kernel menu, Custom Git repository is selected. >>>> The git URL is https://git.ti.com/ti-linux-kernel/ti-linux-kernel.git >>>> The custom repository version is 7f280334068b7c875ade51f8f3921ab311f0c824 >>>> The def config is board/beaglebone/linux-3.12.config >>> I'm using the default beaglebone_defconfig on BBB and USB hotplug works >>> fine. In the default kernel config the options are selected as modules, >>> so you have to load them: >>> >>> $ modprobe musb_am335x >>> $ modprobe musb_dsps >>> >>> After that, outputs in dmesg will tell you that the USB port is found >>> (short version) and USB hotplug will work (I just tested). >>> >>> Regards, >>> >>> Hadrien >>> >> Hello Hadrien, >> >> Thanks for the help. I had the drivers compiled into he kernel not as >> modules. When I reverted my changes back to module and added depmod to >> busybox, then things started to happen. Again, thanks for the help. > >From what you said I understood that you were using the default kernel > config in beaglebone_defconfig almost unchanged ;-). > > Well, I'm using the drivers compiled into the kernel and it works fine > too. Make sure you selected those options in your kernel config: > > USB_MUSB_DUAL_ROLE=y > USB_MUSB_HDRC=y > USB_MUSB_DSPS=y > USB_MUSB_AM335X_CHILD=y > > Regards, > > Hadrien > Hi Hadrien, Again you are correct. I think I had the wrong glue layer selected. It all works now with the driver compiled into the kernel. Thanks, you rock! Dan Pattison Ethertek Circuits