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4332 discussions

by Loïc Minier

Hey I've just uploaded linaro-image-tools 0.4(.1) to natty; thanks to the hard work of Michael Hudson, Guilherme Salgado, James Westby, Martin Ohlsson and many others, we have an awesomely nicer tool to write our Linaro images. For developers: please note that the branch location just moved from: lp:~linaro-maintainers/linaro-image-tools/linaro-image-tools to: lp:~linaro-maintainers/linaro-image-tools/trunk (lp:linaro-image-tools will do the right thing) This doesn't affect existing merge requests, but it might affect your checkouts; use "bzr pull --remember lp:linaro-image-tools" (or push) the next time your pull (or push). Packaging will also be split out into lp:~linaro-maintainers/linaro-image-tools/ubuntu Once this gets out of NEW and enters natty, I should prepare lucid and maverick backports into the Tools PPA (ppa:linaro-maintainers/tools, https://launchpad.net/~linaro-maintainers/+archive/tools/+packages) in the mean time, it's in my PPA: https://launchpad.net/~lool/+archive/ppa/+sourcepub/1448382/+listing-archiv… Cheers, -- Loïc Minier

14 years, 3 months

[PATCH v2] ARM: iMX51 BBG: add clock debug informatio

by yong.shen＠linaro.org

change log: Add more description in commit.

14 years, 3 months

fibcp tool for copying images to SD cards

by Dave Martin

Hi all, I had a go at hacking up a tool to copy sparse images to cards less wastefully (and hopefully faster) by only coping to the important data: See the src/fibcp.c here: git://git.linaro.org/people/dmart/tools.git It's used like this: # fibcp image.bin /dev/<sdcard> There are some caveats, most notably: * You have to be root, since the tool relies on the FIBMAP ioctl. * The filesystem the image file is generated on must not "optmise" explicit writing of blocks of zeros by generating a sparse file. ext[2-4] should work; not sure about btrfs. * The image must be freshly generated via a loop mount (e.g., linaro-media-create --image_file ... copied, tar'd or gzip'd images won't work). It works well enough that e2fsck passes after a writing an image to a card which was previously full of random data. Anyway, it's there if anyone wants to play with it -- comments welcome. Cheers ---Dave

14 years, 3 months

[PM] 19/01/2011 - Minutes for the Power Management WG weekly call

by Amit Kucheria

Hello Everyone, The action packed minutes of the weekly call can be found at: https://wiki.linaro.org/WorkingGroups/PowerManagement/Meetings/2011-01-19 Attendees: Full house! Regards, Amit

14 years, 3 months

Reminder: Weekly Linaro Release Meeting tomorrow

by Jamie Bennett

Hi, The weekly Linaro Release Meeting will be held at 17:00 UTC tomorrow (Thursday). Please note the change of day which is due to a resolution in meeting conflicts meaning the release meeting can return to its normal slot. The agenda for the meeting can be found at: https://wiki.linaro.org/Releases/WeeklyReleaseMeeting/2011-01-20 Regards, Jamie. -- Linaro Release Manager

14 years, 3 months

camera on Freescale i.MX51

by Claudiu Covaci

Hi, I'm have trouble receiving a video stream on the Freescale i.MX51 processor. I've tried everything I could think, so I'm trying my luck here. I'm using a 2.6.31 kernel with some modifications: the camera capture driver [1] and the IPU (Image Processing Unit) driver [2] from the Freescale BSP 2010.11. As for the camera driver, it's written by me. I'm at a point where I can open the /dev/video0 device and can (at least try to) read frames, but it fails at dequeueing the video buffers (VIDIOC_DQBUF) with the message: <3>ERROR: v4l2 capture: mxc_v4l_dqueue timeout enc_counter 0 Unable to dequeue buffer (62). - I've double-checked the IPU registers and they seem properly configured, but I don't get any interrupt (at end-of-frame). - The relevant IOMUX pins are also configured. - the video signal appears at the i.MX pins (so it gets there) - I've also tried activating the internal picture generator, but still nothing happens. Is there anything I overlooked? Is there a way to find out where the problem is? Any hints will be greatly appreciated. Thanks! Claudiu [1] http://opensource.freescale.com/git?p=imx/linux-2.6-imx.git;a=blob;f=driver… [2] http://opensource.freescale.com/git?p=imx/linux-2.6-imx.git;a=tree;f=driver…

14 years, 3 months

gdb-multiarch

by Loïc Minier

Hey Based on an idea by Ulrich Weigand, I've uploaded a new gdb to natty today which adds a gdb-multiarch binary package. It's about 19 MB and once you install it, you will get a new /usr/bin/gdb-multiarch which can debug any target that gdb knows about, including ARM! So you could debug an ARM "/bin/ls" from a local chroot with qemu-arm-static by running gdb-multiarch and then running: (gdb) file /arm-chroot/bin/ls "/arm-chroot/bin/ls": not in executable format: File format is ambiguous. Matching formats: elf32-littlearm elf32-littlearm-symbian elf32-littlearm-vxworks. Use "set gnutarget format-name" to specify the format. (gdb) set gnutarget elf32-littlearm (gdb) file /arm-chroot/bin/ls In the chroot, run: qemu-arm-static -g 1234 /bin/ls and in gdb-multiarch: target remote localhost:1234 and you can now use gdb as usual, setting breakpoints, single-stepping etc. (It obviously also works with remote debugging of a real, network-connected ARM board; use gdbserver instead of qemu) Would people be interested in backports? Cheers, PS: the package is in NEW and will show up soon in natty; in the mean time, you can get it from my natty PPA: https://launchpad.net/~lool/+archive/ppa/+sourcepub/1446500/+listing-archiv… -- Loïc Minier

14 years, 3 months

Infrastructure Team Weekly Report

by Ian Smith

Infrastructure Team * Period: (20110113-20110119) * PM: Ian Smith <ian.smith(a)linaro.org <mailto:ian.smith@linaro.org>> * Past reports : https://wiki.linaro.org/Platform/Infrastructure * Burndown information : http://status.linaro.org <http://status.linaro.org/> Key Points for wider discussion * ImproveLinaroMediaCreate completed. * Team Highlights * ImproveLinaroMediaCreate completed. * Following bugs resolved on ImproveLinaroMediaCreate: #702645 (l-m-c and hwpacks need to be updated for latest x-loader deb), #697824 (linaro omap3 image: serial device name change breaks serial console), #701462 (mkfs.vfat should be added to the dependency list), #702650 (l-m-c fails when device partitions don't follow the /dev/sdNN naming pattern) * Fixed several problems which occurred after the django-restricted-resource changes. Changes have been submitted and are awaiting review comments. Upcoming Deliverables * No immediate milestones due. Stakeholder Process * ImproveLinaroMediaCreate is complete. Blueprint Milestones * No immediate milestones due Risks / Issues * None to be highlighted. Miscellaneous * Guilherme Salgado on leave/ public holiday 20th & 21st January * Michael Hudson has a public holiday on 24th January * Deepti Kalakeri has a public holiday on 26th January

14 years, 3 months

ARM: iMX51 BBG: add clock debug information

by yong.shen＠linaro.org

To utilize powerdebug tool developed by power management group of Linaro, we need this patch in kernel to expose clock information. Yong

14 years, 3 months

[ACTIVITY] week 2 2010 (2011-01-10 - 2011-01-14)

by Dave Martin

== [ACTIVITY] [dave-martin-arm] Activity report for week 2 2010 (2011-01-10 - 2011-01-14) == (Linaro 11.05 mid-cycle rally week, Dallas) === Activity === ==== hardware-n-kernel-standard-architecture ==== * Clarified work item assignments with Paul McKenney. * Rebased omap patches for Thumb-2 against mailine v2.6.37. * Posted generic function-body copying patch to help with Thumb-2 compatibility of low-level BSP code in omap. * Some discussion of the missing debug single-step emulation in the kernel for Thumb-2. Concluded that this feature should not be implemented: it's not robust even for ARM. * All platform-indepedent Thumb-2 fixes were merged in v2.6.37. ==== hardware-n-bsp-investigations ==== * No activity. ==== performance-linaro-n-memory-footprint ==== * Discussed with Steve Langasek how to take this forward. ==== other-linaro-n-gdbserver-integration ==== * No activity (Steve Langasek expects that this will likely be assigned to someone else.) ==== miscellaneous ==== * Acquired Panda board :) (thanks kiko). * Some logistics to help get the new assignees up and running. === Plans === * Build and test a Thumb-2 kernel on Panda. * Discuss prioritisation for outstanding kernel tasks. * Write up the output from the Freescale i.MX BSP review discussion, and post for comment. * Write up methodology for performance-linaro-n-memory- footprint. === Absences === None planned.

14 years, 3 months

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