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Fwd: trouble using wifi on Linaro Ubuntu for Pandaboard

by Fathi Boudra

Wrong mailing list, forwarding lo linaro-dev ---------- Forwarded message ---------- From: Alex Stefanescu <stefanescu(a)rice.edu> Date: 18 November 2012 02:09 Subject: trouble using wifi on Linaro Ubuntu for Pandaboard Hello, I'm having trouble connecting to wifi on the Linaro Ubuntu releases for the Pandaboard. I've tried with both 12.10 and 12.09 releases, which are listed to have passed the wifi test. I don't have a screen attached to the Pandaboard and I'm using minicom over serial cable. Basically after boot I see: > root@linaro-ubuntu-desktop:/boot# iwconfig lo no wireless extensions. wlan0 IEEE 802.11abgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on eth0 no wireless extensions. > root@linaro-ubuntu-desktop:/boot# iwlist wlan0 scan wlan0 Scan completed : [...] Cell 02 - Address: 08:D0:9F:BF:27:51 Channel:6 Frequency:2.437 GHz (Channel 6) Quality=44/70 Signal level=-66 dBm Encryption key:off ESSID:"Rice Visitor" Bit Rates:5.5 Mb/s; 6 Mb/s; 9 Mb/s; 11 Mb/s; 12 Mb/s 18 Mb/s; 24 Mb/s; 36 Mb/s Bit Rates:48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=000002008b96ed23 Extra: Last beacon: 85ms ago [...] > root@linaro-ubuntu-desktop:/boot# iwconfig wlan0 essid "Rice Visitor" [...] [ 228.734680] wlan0: associate with 08:d0:9f:bf:27:51 (try 1/3) [ 228.746246] wlan0: RX AssocResp from 08:d0:9f:bf:27:51 (capab=0x421 status=0 aid=4) [ 228.805328] wl12xx: Association completed. [ 228.827392] wlan0: associated [ 228.831237] cfg80211: Calling CRDA for country: US [ 228.836761] wlan0: disassociating from 08:d0:9f:bf:27:51 by local choice (reason=3) [ 228.926635] cfg80211: All devices are disconnected, going to restore regulatory settings [...] After which there are several more similar connect-disconnect phases and eventually the wlan firmware crashes and has to reboot. I'm using Pandaboard with OMAP4430 and wl1271 wlan chipset. I've also tried running wpa_supplicant manually to connect to both the same open network, or another one secured with WPA2 (I used the wpa_supplicant.conf from an Android phone so I'm pretty sure it was correct) and I have the same issue. There is also a wpa_supplicant always running in the background, does it matter? > root@linaro-ubuntu-desktop:/boot# ps -ef | grep wpa root 2083 1 0 Nov15 ? 00:01:16 /sbin/wpa_supplicant -B -P /run/sendsigs.omit.d/wpasupplicant.pid -u -s -O /var/run/wpa_supplicant Thank you!

13 years, 1 month

[PATCH V6 0/2] Upstream ST-Ericsson thermal driver

by hongbo.zhang

From: "hongbo.zhang" <hongbo.zhang(a)linaro.com> V5->V6 Changes: In patch "Thermal: Add ST-Ericsson DB8500 thermal driver": - Add depends on ARCH_U8500 in Kconfig In patch "Thermal: Add ST-Ericsson DB8500 thermal properties and platform - Add Acked-by: Linus Walleij <linus.walleij(a)linaro.org> hongbo.zhang (2): Thermal: Add ST-Ericsson DB8500 thermal driver. Thermal: Add ST-Ericsson DB8500 thermal properties and platform data. .../devicetree/bindings/thermal/db8500-thermal.txt | 44 ++ arch/arm/boot/dts/dbx5x0.dtsi | 14 + arch/arm/boot/dts/snowball.dts | 31 ++ arch/arm/configs/u8500_defconfig | 2 + arch/arm/mach-ux500/board-mop500.c | 64 +++ drivers/thermal/Kconfig | 20 + drivers/thermal/Makefile | 2 + drivers/thermal/db8500_cpufreq_cooling.c | 108 +++++ drivers/thermal/db8500_thermal.c | 531 +++++++++++++++++++++ include/linux/platform_data/db8500_thermal.h | 38 ++ 10 files changed, 854 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/db8500-thermal.txt create mode 100644 drivers/thermal/db8500_cpufreq_cooling.c create mode 100644 drivers/thermal/db8500_thermal.c create mode 100644 include/linux/platform_data/db8500_thermal.h -- 1.8.0

13 years, 1 month

Cross compiling perf for ARM

by Rizwana Begum

Hello All, I am trying to cross-compile perf tool for ARM on x86 machine. I am using linux-2.6.37. My goal is to compile perf binary statically to use in Gem5 simulator. I am using CodeSourcery to cross compile. However, I get below error ==================================================== ***** No libelf.h/libelf found, please install libelf-dev/elfutils-libelf-devel and glibc-dev[el]. Stop. make[1]: Leaving directory ==================================================================== I have libelf.h file compiled for ARM, I tried replacing it in /usr/include and also in ../arm-none-linux-gnueabi/libc/usr/include. However, I face the same error. (I am not exactly sure about where the compiler is looking for libelf.h) I came across *http://permalink.gmane.org/gmane.linux.ubuntu.devel.kernel.general/11207,* where they say that there are issues related to perf cross-compiling and are not yet solved (by Aug'12). Also *http://www.omappedia.com/wiki/Ubuntu_kernel_build_alternatives#Cross-compilation* states that " do_tools=false option is required with CodeSourcery 2010q1. It will prevent the generation of the tools binary package (including perf) that would fail with CodeSourcery 2010q1 toolchain (to be checked with Linaro or more recent CodeSourcery)." I am using CodeSourcery 2011.03-41. Is anyone successful in cross-compiling perf tool. I also need to cross compile kernel next. So, any information would be of great help. FYI, I will be using the linux kernle with ubuntu disk image in Gem5. Thank you Rizwana * *

13 years, 2 months

Add board config fragments to llct? (Re: Would like to add couple conf files to the config-boards-tracking branch)

by Jon Medhurst (Tixy)

Adding linaro-dev list and replying with some comments... On Tue, 2012-11-13 at 20:20 +0400, Andrey Konovalov wrote: > The llct tree itself has no suitable .conf or defconfig for vexpress at > all. That's the problem (wrt the ci jobs). > > The easier way seemed to be a single kernel/configs.git, > config-boards-tracking branch to provide the config fragments for all > the llct jobs. > But it creates several instances of the same <board>.conf files and adds > confusion. Agreed. > Should we do in the jenkins jobs something like 'git checkout > arm_lt/integration-linaro-vexpress.conf -- linaro/configs/vexpress.conf' > for vexpress and similar (but different and unique) command for the > other boards? Yes, I see the problem. But getting CI jobs to pull configs direct from an LT tree seems like the wrong solution. I guess what people really need is configs in linux-linaro-core-tracking (llct) (I'm sure people have told me that before and I possibly didn't listen enough). Now that the LT branches included in linux-linaro (ll) are based on llct, then they could modify the board configs in llct if required for the work in their topics. So at the moment, I can't think of a good reason not to pub all the board configs into llct. Can anyone else? I don't know if we need the board configs to be sourced from a single repo, or allow board configs to be included in llct from LT trees. One central repo means that people know where to go but means everyone will be pushing to the same repo which could get a bit messy. (Unless we had an official maintainer to manage all commits to the tree.) Or course, once Linaro's build and test infrastructure supports config fragments fully, then we could have have separate config fragments for - basic board config - new board enablement - special features (e.g. big.LITTLE MP) - testing or benchmarking config and the configs could live in the tree relevant to the code they apply to rather than having a single central board config we have to manage. -- Tixy

13 years, 2 months

Test Result Summary of Calendar Week 46 for Linaro ubuntu.

by Botao Sun

Calendar Week 46: Here is test result summary for Linaro ubuntu image on following boards: 1) ARM Versatile Express A9; 2) Samsung Origen; 3) TI Panda Board 4430; 4) TI Panda Board 4460. Synopsis: Feature status remain the same on vexpress A9, Panda 4460 and Samsung Origen. Power Management test passed on Panda 4430. 1. vexpress A9 + ubuntu (Column AH): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdFNmV… Features' status is exactly same as previous week. Device Tree and video playback are unavailable. 2. Origen + ubuntu (Column AC): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEowN… Unity 3D, Hardware Acceleration, WiFi, Bluetooth and Video Playback are unavailable, Power Management test still failed in this image. 3. Panda 4430 + ubuntu (Column AE): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEwwZ… All Power Management tests passed on this build. Bluetooth is unstable and it works better on Panda 4460. Suspend / Resume doesn't work. 4. Panda 4460 + ubuntu (Column AD): https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AroPySpr4FnEdEwwZ… The board can't find the other Bluetooth device every time, but after several repeats, it finally works. However, file transfer is unavailable. Audio input will be double checked next week. All other features look good. For the previous week (Calendar week 45) summary, please refer to attachment. Thank you. Best Regards Botao Sun

13 years, 2 months

Decoding the PTM traces

by Arun KS

Hello, I m trying to capture and decode PTM trace from Cortex A9 dual core. I m successful in configuring the driver(arch/arm/kernel/etm.c) and setting the funnel to get data in ETB. But I don't know how to decode these traces. Anyone has any pointers? Thanks, Arun

13 years, 2 months

[PATCH] mtd: map: Fix compilation warning

by Viresh Kumar

This patch is an attempt to fix following compilation warning. In file included from drivers/mtd/chips/cfi_cmdset_0001.c:35:0: drivers/mtd/chips/cfi_cmdset_0001.c: In function 'cfi_intelext_write_words': include/linux/mtd/map.h:331:11: warning: 'r.x[0]' may be used uninitialized in this function [-Wmaybe-uninitialized] I could have used uninitialized_var() too, but didn't used it as the final else part of map_word_load() is missing. So there is a chance that it might be passed uninitialized. Better initialize to zero. Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- include/linux/mtd/map.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h index 3595a02..56c7936 100644 --- a/include/linux/mtd/map.h +++ b/include/linux/mtd/map.h @@ -328,7 +328,7 @@ static inline int map_word_bitsset(struct map_info *map, map_word val1, map_word static inline map_word map_word_load(struct map_info *map, const void *ptr) { - map_word r; + map_word r = {{0} }; if (map_bankwidth_is_1(map)) r.x[0] = *(unsigned char *)ptr; -- 1.7.12.rc2.18.g61b472e

13 years, 2 months

[PATCH V5 0/2] Upstream ST-Ericsson thermal driver

by hongbo.zhang

From: "hongbo.zhang" <hongbo.zhang(a)linaro.com> V4->V5 Changes: In patch "Thermal: Add ST-Ericsson DB8500 thermal driver": - use flush_work instead of flush_work_sync since the later is deprecated now. - parameter trip_points of db8500_thermal_match_cdev is renamed to trip_point; - re-order oprerations in function db8500_thermal_update_config; hongbo.zhang (2): Thermal: Add ST-Ericsson DB8500 thermal driver. Thermal: Add ST-Ericsson DB8500 thermal properties and platform data. .../devicetree/bindings/thermal/db8500-thermal.txt | 44 ++ arch/arm/boot/dts/dbx5x0.dtsi | 14 + arch/arm/boot/dts/snowball.dts | 31 ++ arch/arm/configs/u8500_defconfig | 2 + arch/arm/mach-ux500/board-mop500.c | 64 +++ drivers/thermal/Kconfig | 20 + drivers/thermal/Makefile | 2 + drivers/thermal/db8500_cpufreq_cooling.c | 108 +++++ drivers/thermal/db8500_thermal.c | 531 +++++++++++++++++++++ include/linux/platform_data/db8500_thermal.h | 38 ++ 10 files changed, 854 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/db8500-thermal.txt create mode 100644 drivers/thermal/db8500_cpufreq_cooling.c create mode 100644 drivers/thermal/db8500_thermal.c create mode 100644 include/linux/platform_data/db8500_thermal.h -- 1.7.11.3

13 years, 2 months

[ANNOUNCE]: big LITTLE MP tree process update

by Viresh Kumar

Hello everybody, There have been few discussion on how big LITTLE MP tree should be managed as it is getting PULL requests from a wide range of patches working towards making our system more power efficient. The following scheme is finalized and is detailed here: https://wiki.linaro.org/WorkingGroups/PowerManagement/Process/bigLittleMPTr… Purpose of this tree is to keep all ongoing efforts, which affect power management on big LITTLE systems, together at a single place. All of these must be targeted to get included in Mainline by their original authors. There are two categories of branches/patches that are kept here. One that are guaranteed to work on current big LITTLE system (Tested on ARM Vexpress TC2) and others which are experimental. Branches can be moved from experimental to master, once we are convinced they don't break any existing stuff in master branch. So, following is the category of Merge branches we have: big-LITTLE-MP-master-v*: Guaranteed to work on current big LITTLE system, ARM Vexpress TC2. This will be pulled in linux-linaro-tracking git tree. big-LITTLE-MP-experimental-v*: Experimental topic branches For now I have created to merge branches: - big-LITTLE-MP-master-v12: git merge arm-multi_pmu_v2 hw-bkp-v7.1-debug-v1 per-task-load-average-v3-merged task-placement-v2 task-migration-sysfs-tuning misc-patches config-fragments - big-LITTLE-MP-exp-v12: git merge intel-powerclamp-driver-v1 per-entity-load-tracking-with-core-sched-v1 sched-pack-small-tasks-v1 sched-timer-wq-migration-v2-resend - power-aware-scheduling-v1: This is another branch which is present in this tree, which can be used. It was rebased on tip/master and hence isn't merged. PULL request to Andrey would be sent only for the Master branch. I would be releasing Experimental branch too every time with Master branch though. Please share your comments? -- viresh

13 years, 2 months

2012-11-14 Android Platform Team Meeting Agenda Posted

by Vishal Bhoj

Please take a look at: https://wiki.linaro.org/Platform/Android/Meetings/2012-11-14 Feel free to add to the agenda and join us in #linaro-meeting on irc.freenode.net at 13:00 UTC on 2012/11/14. Regards, Vishal

13 years, 2 months

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