* [U-Boot] Ethernet via USB on Sinlinx SinA33 @ 2016-03-25 17:14 Quentin Schulz 2016-03-28 12:56 ` Hans de Goede 0 siblings, 1 reply; 8+ messages in thread From: Quentin Schulz @ 2016-03-25 17:14 UTC (permalink / raw) To: u-boot Hi, I am trying to get Ethernet to work through the USB port of the Sinlinx SinA33 on U-Boot to use TFTP to get the kernel and dtb files. However, I am getting 'data abort' when using dhcp or tftp after adding: #define CONFIG_USB_HOST_ETHER #define CONFIG_USB_ETHER_ASIX to include/configs/sunxi-common.h and checking CONFIG_USB_EHCI_HCD as told in the documentation [1] I tested this configuration with the C.H.I.P. and it is working well. Steps to reproduce: 1) Add the following lines to include/configs/sunxi-common.h: #define CONFIG_USB_HOST_ETHER #define CONFIG_USB_ETHER_ASIX 2) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- Sinlinx_SinA33_defconfig 3) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig 4) Check CONFIG_USB_EHCI_HC and save configuration 5) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j$(nproc) 6) Prepare SDCard: sudo dd if=u-boot-sunxi-with-spl.bin of=/dev/sdX bs=1024 seek=8 7) Boot the board and run dhcp or tftp 8) Get 'data abort' and board gets reset (ethact is also not defined) The log file is attached. Thank you, Quentin [1] https://github.com/lentinj/u-boot/blob/master/doc/README.usb#L132 -------------- next part -------------- U-Boot SPL 2016.01-dirty (Mar 25 2016 - 17:54:10) DRAM: 1024 MiB Trying to boot from MMC U-Boot 2016.01-dirty (Mar 25 2016 - 17:54:10 +0100) Allwinner Technology CPU: Allwinner A33 (SUN8I) DRAM: 1 GiB MMC: SUNXI SD/MMC: 0 *** Warning - bad CRC, using default environment In: serial Out: serial Err: serial Net: No ethernet found. starting USB... USB0: USB EHCI 1.00 USB1: USB OHCI 1.0 scanning bus 0 for devices... Warning: asix_eth MAC addresses don't match: Address in SROM is 00:80:8e:8a:95:1b Address in environment is 02:44:08:0d:8d:1a 2 USB Device(s) found Hit any key to stop autoboot: 0 => print ipaddr ## Error: "ipaddr" not defined => dhcp BOOTP broadcast 1 DHCP client bound to address 192.168.1.43 (217 ms) *** Warning: no boot file name; using 'C0A8012B.img' Using asix_eth device TFTP from server 0.0.0.0; our IP address is 192.168.1.43; sending through gateway 192.168.1.1 Filename 'C0A8012B.img'. Load address: 0x42000000 Loading: * TFTP error: 'File not found' (1) Not retrying... data abort pc : [<7ef7be3c>] lr : [<7efb107c>] reloc pc : [<4a015e3c>] lr : [<4a04b07c>] sp : 7af41150 ip : 0d084402 fp : 7af4aa70 r10: 00000000 r9 : 7af45ee8 r8 : 0000000a r7 : 00000000 r6 : 7af57040 r5 : 7af56ff8 r4 : 7efb1084 r3 : 7af56f88 r2 : 00000000 r1 : 000000b8 r0 : ffc2003d Flags: NzCv IRQs off FIQs off Mode SVC_32 Resetting CPU ... resetting ... ^ permalink raw reply [flat|nested] 8+ messages in thread
* [U-Boot] Ethernet via USB on Sinlinx SinA33 2016-03-25 17:14 [U-Boot] Ethernet via USB on Sinlinx SinA33 Quentin Schulz @ 2016-03-28 12:56 ` Hans de Goede 2016-03-29 6:38 ` Quentin Schulz 0 siblings, 1 reply; 8+ messages in thread From: Hans de Goede @ 2016-03-28 12:56 UTC (permalink / raw) To: u-boot Hi, On 25-03-16 18:14, Quentin Schulz wrote: > Hi, > > I am trying to get Ethernet to work through the USB port of the Sinlinx > SinA33 on U-Boot to use TFTP to get the kernel and dtb files. > > However, I am getting 'data abort' when using dhcp or tftp after adding: > #define CONFIG_USB_HOST_ETHER > #define CONFIG_USB_ETHER_ASIX > > to include/configs/sunxi-common.h and checking CONFIG_USB_EHCI_HCD as > told in the documentation [1] > > I tested this configuration with the C.H.I.P. and it is working well. Are you perhaps building u-boot with gcc6 ? There are some known issues when building u-boot with gcc-6, which look pretty much like this. Is the ethernet adapter connected to a regular usb host port, or to the otg port ? Regards, Hans > > Steps to reproduce: > > 1) Add the following lines to include/configs/sunxi-common.h: > > #define CONFIG_USB_HOST_ETHER > #define CONFIG_USB_ETHER_ASIX > > 2) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- Sinlinx_SinA33_defconfig > 3) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig > 4) Check CONFIG_USB_EHCI_HC and save configuration > 5) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j$(nproc) > 6) Prepare SDCard: > sudo dd if=u-boot-sunxi-with-spl.bin of=/dev/sdX bs=1024 seek=8 > 7) Boot the board and run dhcp or tftp > 8) Get 'data abort' and board gets reset (ethact is also not defined) > > The log file is attached. > > Thank you, > > Quentin > > [1] https://github.com/lentinj/u-boot/blob/master/doc/README.usb#L132 > ^ permalink raw reply [flat|nested] 8+ messages in thread
* [U-Boot] Ethernet via USB on Sinlinx SinA33 2016-03-28 12:56 ` Hans de Goede @ 2016-03-29 6:38 ` Quentin Schulz 2016-03-29 9:59 ` Hans de Goede 2016-04-06 15:24 ` Hans de Goede 0 siblings, 2 replies; 8+ messages in thread From: Quentin Schulz @ 2016-03-29 6:38 UTC (permalink / raw) To: u-boot Hi, On 28/03/2016 14:56, Hans de Goede wrote: > Hi, > > On 25-03-16 18:14, Quentin Schulz wrote: >> Hi, >> >> I am trying to get Ethernet to work through the USB port of the Sinlinx >> SinA33 on U-Boot to use TFTP to get the kernel and dtb files. >> >> However, I am getting 'data abort' when using dhcp or tftp after adding: >> #define CONFIG_USB_HOST_ETHER >> #define CONFIG_USB_ETHER_ASIX >> >> to include/configs/sunxi-common.h and checking CONFIG_USB_EHCI_HCD as >> told in the documentation [1] >> >> I tested this configuration with the C.H.I.P. and it is working well. > > Are you perhaps building u-boot with gcc6 ? There are some known issues > when building u-boot with gcc-6, which look pretty much like this. No, I'm building with gcc-5: $ arm-linux-gnueabihf-gcc --version arm-linux-gnueabihf-gcc (Ubuntu 5.2.1-22ubuntu1) 5.2.1 20151010 > Is the ethernet adapter connected to a regular usb host port, or to > the otg port ? The Ethernet adapter is connected to the regular USB host port. Regards, Quentin >> Steps to reproduce: >> >> 1) Add the following lines to include/configs/sunxi-common.h: >> >> #define CONFIG_USB_HOST_ETHER >> #define CONFIG_USB_ETHER_ASIX >> >> 2) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- >> Sinlinx_SinA33_defconfig >> 3) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig >> 4) Check CONFIG_USB_EHCI_HC and save configuration >> 5) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j$(nproc) >> 6) Prepare SDCard: >> sudo dd if=u-boot-sunxi-with-spl.bin of=/dev/sdX bs=1024 seek=8 >> 7) Boot the board and run dhcp or tftp >> 8) Get 'data abort' and board gets reset (ethact is also not defined) >> >> The log file is attached. >> >> Thank you, >> >> Quentin >> >> [1] https://github.com/lentinj/u-boot/blob/master/doc/README.usb#L132 >> ^ permalink raw reply [flat|nested] 8+ messages in thread
* [U-Boot] Ethernet via USB on Sinlinx SinA33 2016-03-29 6:38 ` Quentin Schulz @ 2016-03-29 9:59 ` Hans de Goede 2016-04-06 15:24 ` Hans de Goede 1 sibling, 0 replies; 8+ messages in thread From: Hans de Goede @ 2016-03-29 9:59 UTC (permalink / raw) To: u-boot Hi, On 29-03-16 08:38, Quentin Schulz wrote: > Hi, > > On 28/03/2016 14:56, Hans de Goede wrote: >> Hi, >> >> On 25-03-16 18:14, Quentin Schulz wrote: >>> Hi, >>> >>> I am trying to get Ethernet to work through the USB port of the Sinlinx >>> SinA33 on U-Boot to use TFTP to get the kernel and dtb files. >>> >>> However, I am getting 'data abort' when using dhcp or tftp after adding: >>> #define CONFIG_USB_HOST_ETHER >>> #define CONFIG_USB_ETHER_ASIX >>> >>> to include/configs/sunxi-common.h and checking CONFIG_USB_EHCI_HCD as >>> told in the documentation [1] >>> >>> I tested this configuration with the C.H.I.P. and it is working well. >> >> Are you perhaps building u-boot with gcc6 ? There are some known issues >> when building u-boot with gcc-6, which look pretty much like this. > > No, I'm building with gcc-5: > $ arm-linux-gnueabihf-gcc --version > arm-linux-gnueabihf-gcc (Ubuntu 5.2.1-22ubuntu1) 5.2.1 20151010 > >> Is the ethernet adapter connected to a regular usb host port, or to >> the otg port ? > > The Ethernet adapter is connected to the regular USB host port. Hmm, then maybe we are missing some cache flusing somewhere in the ehci code? Otherwise I would not know what the issue might be. Regards, Hans ^ permalink raw reply [flat|nested] 8+ messages in thread
* [U-Boot] Ethernet via USB on Sinlinx SinA33 2016-03-29 6:38 ` Quentin Schulz 2016-03-29 9:59 ` Hans de Goede @ 2016-04-06 15:24 ` Hans de Goede 2016-04-11 10:25 ` Quentin Schulz 1 sibling, 1 reply; 8+ messages in thread From: Hans de Goede @ 2016-04-06 15:24 UTC (permalink / raw) To: u-boot Hi, On 29-03-16 08:38, Quentin Schulz wrote: > Hi, > > On 28/03/2016 14:56, Hans de Goede wrote: >> Hi, >> >> On 25-03-16 18:14, Quentin Schulz wrote: >>> Hi, >>> >>> I am trying to get Ethernet to work through the USB port of the Sinlinx >>> SinA33 on U-Boot to use TFTP to get the kernel and dtb files. >>> >>> However, I am getting 'data abort' when using dhcp or tftp after adding: >>> #define CONFIG_USB_HOST_ETHER >>> #define CONFIG_USB_ETHER_ASIX >>> >>> to include/configs/sunxi-common.h and checking CONFIG_USB_EHCI_HCD as >>> told in the documentation [1] >>> >>> I tested this configuration with the C.H.I.P. and it is working well. >> >> Are you perhaps building u-boot with gcc6 ? There are some known issues >> when building u-boot with gcc-6, which look pretty much like this. > > No, I'm building with gcc-5: > $ arm-linux-gnueabihf-gcc --version > arm-linux-gnueabihf-gcc (Ubuntu 5.2.1-22ubuntu1) 5.2.1 20151010 > >> Is the ethernet adapter connected to a regular usb host port, or to >> the otg port ? > > The Ethernet adapter is connected to the regular USB host port. So I've been debugging some armv7 cache issues lately and I've come up with the following fix: https://patchwork.ozlabs.org/patch/605967/ This might very will fix your issue too. If not we're likely missing some cache flushing / invalidation in the usb driver for your usb host controller. Regards, Hans > > Regards, > > Quentin > > >>> Steps to reproduce: >>> >>> 1) Add the following lines to include/configs/sunxi-common.h: >>> >>> #define CONFIG_USB_HOST_ETHER >>> #define CONFIG_USB_ETHER_ASIX >>> >>> 2) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- >>> Sinlinx_SinA33_defconfig >>> 3) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig >>> 4) Check CONFIG_USB_EHCI_HC and save configuration >>> 5) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j$(nproc) >>> 6) Prepare SDCard: >>> sudo dd if=u-boot-sunxi-with-spl.bin of=/dev/sdX bs=1024 seek=8 >>> 7) Boot the board and run dhcp or tftp >>> 8) Get 'data abort' and board gets reset (ethact is also not defined) >>> >>> The log file is attached. >>> >>> Thank you, >>> >>> Quentin >>> >>> [1] https://github.com/lentinj/u-boot/blob/master/doc/README.usb#L132 >>> ^ permalink raw reply [flat|nested] 8+ messages in thread
* [U-Boot] Ethernet via USB on Sinlinx SinA33 2016-04-06 15:24 ` Hans de Goede @ 2016-04-11 10:25 ` Quentin Schulz 2016-04-11 11:07 ` Hans de Goede 0 siblings, 1 reply; 8+ messages in thread From: Quentin Schulz @ 2016-04-11 10:25 UTC (permalink / raw) To: u-boot Hi, On 06/04/2016 17:24, Hans de Goede wrote: > Hi, > > On 29-03-16 08:38, Quentin Schulz wrote: >> Hi, >> >> On 28/03/2016 14:56, Hans de Goede wrote: >>> Hi, >>> >>> On 25-03-16 18:14, Quentin Schulz wrote: >>>> Hi, >>>> >>>> I am trying to get Ethernet to work through the USB port of the Sinlinx >>>> SinA33 on U-Boot to use TFTP to get the kernel and dtb files. >>>> >>>> However, I am getting 'data abort' when using dhcp or tftp after >>>> adding: >>>> #define CONFIG_USB_HOST_ETHER >>>> #define CONFIG_USB_ETHER_ASIX >>>> >>>> to include/configs/sunxi-common.h and checking CONFIG_USB_EHCI_HCD as >>>> told in the documentation [1] >>>> >>>> I tested this configuration with the C.H.I.P. and it is working well. >>> >>> Are you perhaps building u-boot with gcc6 ? There are some known issues >>> when building u-boot with gcc-6, which look pretty much like this. >> >> No, I'm building with gcc-5: >> $ arm-linux-gnueabihf-gcc --version >> arm-linux-gnueabihf-gcc (Ubuntu 5.2.1-22ubuntu1) 5.2.1 20151010 >> >>> Is the ethernet adapter connected to a regular usb host port, or to >>> the otg port ? >> >> The Ethernet adapter is connected to the regular USB host port. > > So I've been debugging some armv7 cache issues lately and I've come > up with the following fix: > > https://patchwork.ozlabs.org/patch/605967/ > > This might very will fix your issue too. If not we're likely missing > some cache flushing / invalidation in the usb driver for your usb > host controller. > > Regards, > > Hans I actually tried uboot-sunxi repository (and then checked out on merge commit in master for this repository) and it is working as expected: I get Ethernet over USB. I tested with master (43d3fb5c0609a76409e7859a2a5800670c7b5bd2) and I first get a reset of the board when starting USB (before I can enter U-Boot command line) and then after the reboot, U-Boot hangs on starting USB (still before the command line). I did a git bisect on master and it returned this commit: http://git.denx.de/?p=u-boot.git;a=commit;h=3f9f8a5b83f8aec40c9f4ee496046a695e333c45 Tell me if I can help in any way. Regards, Quentin >> >> Regards, >> >> Quentin >> >> >>>> Steps to reproduce: >>>> >>>> 1) Add the following lines to include/configs/sunxi-common.h: >>>> >>>> #define CONFIG_USB_HOST_ETHER >>>> #define CONFIG_USB_ETHER_ASIX >>>> >>>> 2) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- >>>> Sinlinx_SinA33_defconfig >>>> 3) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig >>>> 4) Check CONFIG_USB_EHCI_HC and save configuration >>>> 5) make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j$(nproc) >>>> 6) Prepare SDCard: >>>> sudo dd if=u-boot-sunxi-with-spl.bin of=/dev/sdX bs=1024 seek=8 >>>> 7) Boot the board and run dhcp or tftp >>>> 8) Get 'data abort' and board gets reset (ethact is also not defined) >>>> >>>> The log file is attached. >>>> >>>> Thank you, >>>> >>>> Quentin >>>> >>>> [1] https://github.com/lentinj/u-boot/blob/master/doc/README.usb#L132 >>>> ^ permalink raw reply [flat|nested] 8+ messages in thread
* [U-Boot] Ethernet via USB on Sinlinx SinA33 2016-04-11 10:25 ` Quentin Schulz @ 2016-04-11 11:07 ` Hans de Goede 2016-04-11 11:32 ` Quentin Schulz 0 siblings, 1 reply; 8+ messages in thread From: Hans de Goede @ 2016-04-11 11:07 UTC (permalink / raw) To: u-boot Hi, On 11-04-16 12:25, Quentin Schulz wrote: > Hi, > > On 06/04/2016 17:24, Hans de Goede wrote: >> Hi, >> >> On 29-03-16 08:38, Quentin Schulz wrote: >>> Hi, >>> >>> On 28/03/2016 14:56, Hans de Goede wrote: >>>> Hi, >>>> >>>> On 25-03-16 18:14, Quentin Schulz wrote: >>>>> Hi, >>>>> >>>>> I am trying to get Ethernet to work through the USB port of the Sinlinx >>>>> SinA33 on U-Boot to use TFTP to get the kernel and dtb files. >>>>> >>>>> However, I am getting 'data abort' when using dhcp or tftp after >>>>> adding: >>>>> #define CONFIG_USB_HOST_ETHER >>>>> #define CONFIG_USB_ETHER_ASIX >>>>> >>>>> to include/configs/sunxi-common.h and checking CONFIG_USB_EHCI_HCD as >>>>> told in the documentation [1] >>>>> >>>>> I tested this configuration with the C.H.I.P. and it is working well. >>>> >>>> Are you perhaps building u-boot with gcc6 ? There are some known issues >>>> when building u-boot with gcc-6, which look pretty much like this. >>> >>> No, I'm building with gcc-5: >>> $ arm-linux-gnueabihf-gcc --version >>> arm-linux-gnueabihf-gcc (Ubuntu 5.2.1-22ubuntu1) 5.2.1 20151010 >>> >>>> Is the ethernet adapter connected to a regular usb host port, or to >>>> the otg port ? >>> >>> The Ethernet adapter is connected to the regular USB host port. >> >> So I've been debugging some armv7 cache issues lately and I've come >> up with the following fix: >> >> https://patchwork.ozlabs.org/patch/605967/ >> >> This might very will fix your issue too. If not we're likely missing >> some cache flushing / invalidation in the usb driver for your usb >> host controller. >> >> Regards, >> >> Hans > > I actually tried uboot-sunxi repository (and then checked out on merge > commit in master for this repository) and it is working as expected: I > get Ethernet over USB. > > I tested with master (43d3fb5c0609a76409e7859a2a5800670c7b5bd2) and I > first get a reset of the board when starting USB (before I can enter > U-Boot command line) and then after the reboot, U-Boot hangs on starting > USB (still before the command line). > > I did a git bisect on master and it returned this commit: > http://git.denx.de/?p=u-boot.git;a=commit;h=3f9f8a5b83f8aec40c9f4ee496046a695e333c45 Ah, that is fixed by this commit: http://git.denx.de/?p=u-boot/u-boot-usb.git;a=commitdiff;h=cfb3f1cd0e022711d69ff040884357b8410865ef A pullreq for which was send this morning, so this should be fixed in master as soon as the u-boot-usb pull-req gets merged. Regards, Hans ^ permalink raw reply [flat|nested] 8+ messages in thread
* [U-Boot] Ethernet via USB on Sinlinx SinA33 2016-04-11 11:07 ` Hans de Goede @ 2016-04-11 11:32 ` Quentin Schulz 0 siblings, 0 replies; 8+ messages in thread From: Quentin Schulz @ 2016-04-11 11:32 UTC (permalink / raw) To: u-boot Hi, On 11/04/2016 13:07, Hans de Goede wrote: > Hi, > > On 11-04-16 12:25, Quentin Schulz wrote: >> Hi, >> >> On 06/04/2016 17:24, Hans de Goede wrote: >>> Hi, >>> >>> On 29-03-16 08:38, Quentin Schulz wrote: >>>> Hi, >>>> >>>> On 28/03/2016 14:56, Hans de Goede wrote: >>>>> Hi, >>>>> >>>>> On 25-03-16 18:14, Quentin Schulz wrote: >>>>>> Hi, >>>>>> >>>>>> I am trying to get Ethernet to work through the USB port of the >>>>>> Sinlinx >>>>>> SinA33 on U-Boot to use TFTP to get the kernel and dtb files. >>>>>> >>>>>> However, I am getting 'data abort' when using dhcp or tftp after >>>>>> adding: >>>>>> #define CONFIG_USB_HOST_ETHER >>>>>> #define CONFIG_USB_ETHER_ASIX >>>>>> >>>>>> to include/configs/sunxi-common.h and checking CONFIG_USB_EHCI_HCD as >>>>>> told in the documentation [1] >>>>>> >>>>>> I tested this configuration with the C.H.I.P. and it is working well. >>>>> >>>>> Are you perhaps building u-boot with gcc6 ? There are some known >>>>> issues >>>>> when building u-boot with gcc-6, which look pretty much like this. >>>> >>>> No, I'm building with gcc-5: >>>> $ arm-linux-gnueabihf-gcc --version >>>> arm-linux-gnueabihf-gcc (Ubuntu 5.2.1-22ubuntu1) 5.2.1 20151010 >>>> >>>>> Is the ethernet adapter connected to a regular usb host port, or to >>>>> the otg port ? >>>> >>>> The Ethernet adapter is connected to the regular USB host port. >>> >>> So I've been debugging some armv7 cache issues lately and I've come >>> up with the following fix: >>> >>> https://patchwork.ozlabs.org/patch/605967/ >>> >>> This might very will fix your issue too. If not we're likely missing >>> some cache flushing / invalidation in the usb driver for your usb >>> host controller. >>> >>> Regards, >>> >>> Hans >> >> I actually tried uboot-sunxi repository (and then checked out on merge >> commit in master for this repository) and it is working as expected: I >> get Ethernet over USB. >> >> I tested with master (43d3fb5c0609a76409e7859a2a5800670c7b5bd2) and I >> first get a reset of the board when starting USB (before I can enter >> U-Boot command line) and then after the reboot, U-Boot hangs on starting >> USB (still before the command line). >> >> I did a git bisect on master and it returned this commit: >> http://git.denx.de/?p=u-boot.git;a=commit;h=3f9f8a5b83f8aec40c9f4ee496046a695e333c45 >> > > Ah, that is fixed by this commit: > > http://git.denx.de/?p=u-boot/u-boot-usb.git;a=commitdiff;h=cfb3f1cd0e022711d69ff040884357b8410865ef > > > A pullreq for which was send this morning, so this should be fixed > in master as soon as the u-boot-usb pull-req gets merged. > > Regards, > > Hans Tested with the patch, the issue is solved. Thanks Hans! Regards, Quentin ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2016-04-11 11:32 UTC | newest] Thread overview: 8+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2016-03-25 17:14 [U-Boot] Ethernet via USB on Sinlinx SinA33 Quentin Schulz 2016-03-28 12:56 ` Hans de Goede 2016-03-29 6:38 ` Quentin Schulz 2016-03-29 9:59 ` Hans de Goede 2016-04-06 15:24 ` Hans de Goede 2016-04-11 10:25 ` Quentin Schulz 2016-04-11 11:07 ` Hans de Goede 2016-04-11 11:32 ` Quentin Schulz
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