On 17.03.16 15:48, Guillaume Gardet wrote: > Le 17/03/2016 15:40, Alexander Graf a écrit : >> >> On 17.03.16 15:25, Bill Merriam wrote: >>> On Wed, 2016-03-16 at 23:21 +0100, Alexander Graf wrote: >>>> On 16.03.16 20:00, Bill Merriam wrote: >>>>> On Thu, 2016-03-03 at 20:18 +0100, Dirk Müller wrote: >>>>>> Hi, >>>>>> >>>>>> http://download.opensuse.org/repositories/devel:/ARM:/Factory:/Contrib:/RaspberryPi2:/Staging/images/ >>>>>> >>>>>> >>>>>> >>>>>> (yeah, I know its the Pi2 path, I was lazy) contains an untested >>>>>> raspberrypi3 image. I already know that serial is broken, that seems >>>>>> to be an upstream issue (due to the changed clock frequencies). >>>>>> >>>>>> I haven't tested it further yet, need to buy some HDMI capable screen >>>>>> first. Let me know your findings. >>>>>> >>>>>> Greetings, >>>>>> Dirk >>>>> I have successfully installed this image: >>>>> >>>>> http://download.opensuse.org/repositories/devel:/ARM:/Factory:/Contrib:/RaspberryPi2/images/openSUSE-Tumbleweed-ARM-JeOS-raspberrypi3.armv7l-2016.03.09-Build5.2.raw.xz >>>>> >>>>> >>>>> It has several issues with booting. Uboot issues messages for a while >>>>> and eventually comes to a prompt. If I type "boot", it boots up. At >>>> This is my fault again - as soon as the image got rebuilt with the >>>> fixed >>>> U-Boot package (that was stuck in Factory review for a week) this error >>>> should be gone. >>>> >>>>> some point I noticed in dmesg a complaint that the first partition was >>>>> "dirty" and needed an fsck. It is a FAT filesystem and fsck.fat isn't >>>> That's weird. Sounds like a flushing bug during build? >>>> >>>>> installed. I installed "dosfstools" and checked the file system. >>>>> >>>>> One of the uboot messages complained that "usbethaddr" was not set. >>>> I don't think we support the usb mac stuff quite yet. If you have great >>>> ideas how to make it work with upstream U-Boot, we're more than >>>> happy to >>>> see patches :). >>>> >>>>> Every time it boots it chooses a new MAC address which causes the dhcp >>>>> server to give it a new address every time. I set that variable >>>>> and did >>>>> a saveenv. I suppose that is supposed to happen somehow during the >>>>> first boot. >>>> The way it works without U-Boot is that the RPi bootloader generates >>>> the >>>> mac address from the pi serial number. We should probably do the >>>> same in >>>> U-Boot. >>>> >>>> IIRC it then gets passed to the kernel using the kernel command line. >>>> That's a horrible interface, as it breaks any integration with boot >>>> loaders (like grub2). So if we want to move this to an efi based boot >>>> mechanism, we need to instead inject the mac address into the device >>>> tree. I'm not quite sure where though - usb is not described in dt. >>>> >>>>> There are also messages about variables "bootfile" and "pxeuuid" being >>>>> missing. Variable "scan_dev_for_efi" is a script that tries to set >>>>> variable "boot_prefixes" but doesn't get it right. >>>> That's the bug that was fixed in u-boot and stuck in review. Basically >>>> the bootfile definition got included in the scan_dev_for_efi variable >>>> while it should've been its own variable. I simply forgot the null >>>> terminator. >>>> >>>>> I will read u-boot documentation and try to figure it out but if >>>>> somebody fixes it I can move on to something else. >>>> That leaves the mac address thing to fix :). >>>> >>>> >>>> Alex >>> The serial number is available in the One Time Programmable memory. >>> http://elinux.org/RPI_vcgencmd_usage >>> >>> vcgencmd otp_dump |grep 28: |cut -b 4- >>> >>> The MAC address seems to be RPI's prefix b8:27:eb plus the last 3 bytes >>> of the serial. >> This big problem is not how to fetch the 3 bytes. It's how to pass them >> all the way from u-boot via fdt to the kernel and have the kernel >> properly use it as the mac address for the usb ethernet adapter. > > You may ask on u-boot mailing list. I think u-boot is able to do it more > or less automatically.
It does it automatically, but I can't find code that passes the internal usbethaddr variable on to Linux. Alex -- To unsubscribe, e-mail: opensuse-arm+unsubscr...@opensuse.org To contact the owner, e-mail: opensuse-arm+ow...@opensuse.org
