linaro-kernel March 2012

linaro-kernel@lists.linaro.org

38 participants
53 discussions

[ACTIVITY] (Saugata Das) Feb 27th - March 1

by Saugata Das

== Saugata Das sdas == === Activity Summary === * REQ_META patch submitted to EXT4 and FSDEVEL. Initial feedback is good from the community. Next step is to implement REQ_META on BTRFS. The BP (https://blueprints.launchpad.net/linux-linaro/+spec/emmc4.5-data-tag) is updated === Plans === * Work on native sector BP (https://blueprints.launchpad.net/linux-linaro/+spec/emmc4.5-native-sector) * Work on BP for putting journal on enhanced area (https://blueprints.launchpad.net/linux-linaro/+spec/journal-enhanced-emmc) === Issues === * None

12 years, 2 months

Replacing Kernel image suspends booting on "Uncompressing Linux... done, booting the kernel"

by Jaeyeon Kihm

Hi guys, Once I duplicated linaro-ubuntu-desktop image into SD card following the instruction on linaro website and it works fine. Now I need to patch the kernel so that I compiled the patched kernel and copy the kernel image into /boot of SD card but my pandaboard doesn't boot up. Below is more detail steps I did so please let me know what I did wrong. Also if you have an instruction, then it also might be really helpful. 1. I'm using PandaBoard ES. To start the board, I just dd linaro-ubuntu-desktop image to SD card following these steps ( http://releases.linaro.org/images/): # These values will change based on your system $ SDCARD=/dev/ #sdcard could be something sdb or mmcblk0 $ IMGFILE=overo-nano.img $ gunzip ${IMGFILE}.gz $ dd bs=64k if=${IMGFILE} of=${SDCARD} Then the linaro ubuntu works on the PandaBoard ES well. In detail, the version of this ubuntu 12.02 and kernel version is 3.1.1-8-linaro-lt-omap. 2. Next, I cloned your git repository(git:// git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc.git) to get kernel including remoteproc patch. Since there's no .config file I just copy the config file of 3.2-rc4 on here ( http://elinux.org/Panda_How_to_kernel_3_2_rcx) wihch is the version matching the kernel version on your git repository. And then I compile the kernel and modules to get an uImage and install modules with commands below (also explains http://elinux.org/Panda_How_to_kernel_3_2_rcx), and copy uImage to /boot on SD card and modules /rootfs/lib/ on SD card. I used arm-linux-gnueabi-gcc rather than arm-none-linux-gnueabi-gcc. Then compile like so: make ARCH=arm CROSS_COMPILE=Path_to_your/arm-2010q1/bin/arm-none-linux-gnueabi- uImage Then compile the modules like so: make ARCH=arm CROSS_COMPILE=/home/kenm/Panda/arm-2010q1/bin/arm-none-linux-gnueabi- modules "Install" the modules to somewhere convenient: make ARCH=arm CROSS_COMPILE=/home/kenm/Panda/arm-2010q1/bin/arm-none-linux-gnueabi- INSTALL_MOD_PATH=../testlib_omap modules_install 3. Then I put SD card to the Panda Board but it's suspending with the booting logs below. U-Boot SPL 2011.12-rc1 (Mar 01 2012 - 20:03:59) Texas Instruments OMAP4460 ES1.1 OMAP SD/MMC: 0 reading u-boot.img reading u-boot.img U-Boot 2011.12-rc1 (Mar 01 2012 - 20:03:59) CPU : OMAP4460 ES1.1 Board: OMAP4 Panda I2C: ready DRAM: 1 GiB WARNING: Caches not enabled MMC: OMAP SD/MMC: 0 Using default environment In: serial Out: serial Err: serial Net: No ethernet found. Hit any key to stop autoboot: 0 reading uEnv.txt ** Unable to read "uEnv.txt" from mmc 0:1 ** reading boot.scr 514 bytes read Loaded script from boot.scr Running bootscript from mmc0 ... ## Executing script at 82000000 reading uImage 3249584 bytes read reading uInitrd 1877535 bytes read reading board.dtb 340 bytes read ## Booting kernel from Legacy Image at 80200000 ... Image Name: Linux-3.2.0-rc4-00248-gb835c0f-d Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 3249520 Bytes = 3.1 MiB Load Address: 80008000 Entry Point: 80008000 Verifying Checksum ... OK ## Loading init Ramdisk from Legacy Image at 81600000 ... Image Name: initramfs Image Type: ARM Linux RAMDisk Image (uncompressed) Data Size: 1877471 Bytes = 1.8 MiB Load Address: 00000000 Entry Point: 00000000 Verifying Checksum ... OK ## Flattened Device Tree blob at 815f0000 Booting using the fdt blob at 0x815f0000 Loading Kernel Image ... OK OK reserving fdt memory region: addr=9d000000 size=3000000 Using Device Tree in place at 815f0000, end 815f3153 Starting kernel ... Uncompressing Linux... done, booting the kernel. Do you have any guess what I have missed or didn't do something? Any of your advise would be more than welcome. Thanks for your patches, and I really appreciate your consideration and help. Thanks, Jaeyeon

12 years, 2 months

[ACTIVITY] (Dong Aisheng) Feb 20 - Feb 29

by Dong Aisheng

=== Pinctrl === * Mainly focused on help reviewing pinctrl core rework patches(near 30 patches recently submitted by Stephen Warren and Linus Walleij) for API rework, merging mux and config and adding different state support as well as pinctrl core dt binding support(in plan). === Plan === * Continue to help review pinctrl core patches since many of them are still not hit mainline * Adding pin config and DT support for MX6Q pinctrl driver after pinctrl core rework patches get upstreamed * Will spend some free time to add DT support for MX28 platform

12 years, 2 months

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linaro-kernel March 2012