Hi Sudeep, -----Original Message----- From: Sudeep Holla [mailto:sudeep.holla@xxxxxxx] Sent: Tuesday, September 27, 2016 2:38 PM To: Sajjan, Vikas C <vikas.cha.sajjan@xxxxxxx>; Vikas Sajjan <sajjan.linux@xxxxxxxxx>; linux-usb@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-acpi@xxxxxxxxxxxxxxx Cc: Sudeep Holla <sudeep.holla@xxxxxxx>; mark.rutland@xxxxxxx; lorenzo.pieralisi@xxxxxxx Subject: Re: ARM juno R2 board USB Issue (EHCI probe failed) On 27/09/16 09:55, Sajjan, Vikas C wrote: > Hi Sudeep, > > -----Original Message----- > From: Sudeep Holla [mailto:sudeep.holla@xxxxxxx] > Sent: Tuesday, September 27, 2016 2:21 PM > To: Vikas Sajjan <sajjan.linux@xxxxxxxxx>; linux-usb@xxxxxxxxxxxxxxx; > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-acpi@xxxxxxxxxxxxxxx > Cc: Sudeep Holla <sudeep.holla@xxxxxxx>; mark.rutland@xxxxxxx; > lorenzo.pieralisi@xxxxxxx; Sajjan, Vikas C <vikas.cha.sajjan@xxxxxxx> > Subject: Re: ARM juno R2 board USB Issue (EHCI probe failed) > > Hi Vikas, > > On 27/09/16 09:14, Vikas Sajjan wrote: >> Adding USB mailing list. >> >> >> On Tue, Sep 27, 2016 at 12:33 PM, Sajjan, Vikas C >> <vikas.cha.sajjan@xxxxxxx> wrote: >>> Hi All, >>> >>> I working on ARM juno R2 board, with latest kernel 4.8.rc7 and I get >>> below USB EHCI probe error while booting with acpi=force. >>> > > Are you using the latest UEFI EDK2 ? > No, I am still using the UEFI binary which came as part of the Juno board. > > >>> [ 1.223662] VFIO - User Level meta-driver version: 0.3 >>> [ 1.229335] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver >>> [ 1.235882] ehci-pci: EHCI PCI platform driver >>> [ 1.240359] ehci-platform: EHCI generic platform driver >>> [ 1.245619] ehci-platform ARMH0D20:00: Error: DMA mask configuration failed >>> [ 1.272491] ehci-platform: probe of ARMH0D20:00 failed with error -5 >>> [ 1.278876] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver >>> [ 1.285071] ohci-pci: OHCI PCI platform driver >>> [ 1.289548] ohci-platform: OHCI generic platform driver >>> [ 1.294884] usbcore: registered new interface driver usb-storage >>> [ 1.301231] mousedev: PS/2 mouse device common for all mice >>> [ 1.307197] rtc-efi rtc-efi: rtc core: registered rtc-efi as rtc0 >>> >>> But this error goes off, if I don't force ACPI booting, i.e., if I >>> remove acpi=force from kernel command line , USB is detected and my >>> RFS which is in the usb drive, gets mounted successfully. >>> > > As I mentioned in private, I do get the same error if I drop _CCA in > USB object of ACPI DSDT. Can you give it a spin with latest UEFI ? > > Sure, will try with latest UEFI. > I bet that's 8-12 months old. It puts the banner during boot with the build date. You can try to follow [1] or access it from [2] I was able boot the kernel without any EHCI failure and could get to the shell prompt using the EDK2 in [2]. Thanks for help. Thanks and Regards Vikas Sajjan -- Regards, Sudeep [1] https://community.arm.com/docs/DOC-11395 [2] http://snapshots.linaro.org/member-builds/armlt-platforms-release/32/juno-uefi.zip -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html