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4332 discussions

by Russ Pavlicek

I don't want to spam the list, but as there are likely some people who might want to attend for the benefit of the Linaro effort, I'd like to announce that there is a Xen Hackathon coming on May 16-17 in Dublin Ireland. Details can be found here: http://blog.xen.org/index.php/2013/03/07/google-hosted-xen-hackathon-may-16… Thanks, Russell Pavlicek Xen Evangelist

12 years, 8 months

Black screen error trying to virtualize android-linaro with qemu-linaro on the pandaboard ES and on the arm chromebook

by Mario

Hello to everybody. I'm trying to virtualize Linaro-Android 4 with qemu-linaro on two different kind of machines : 1) Pandaboard ES running Ubuntu with this kernel : Linux arm 3.7.2-x6 #1 SMP Sat Jan 12 07:16:37 UTC 2013 armv7l armv7l armv7l GNU/Linux 2) Samsung XE303C12-A01US Chromebook running CHR Ubuntu with this kernel : Linux localhost.localdomain 3.4.0-5-chromebook #5-Ubuntu SMP Fri Feb 8 14:54:53 UTC 2013 armv7l armv7l armv7l GNU/Linux To accomplish the goal I made the experiments with two versions of qemu-linaro : 1) qemu-linaro-1.3.0-2012.12 2) qemu-linaro 1.4 from the GIT rep In both cases I configured qemu-linaro with these parameters : --disable-kvm --disable-tcg-interpreter --enable-curses --enable-sdl --enable-vnc --disable-debug-tcg --enable-vhost-net I tried to follow two different kind of tutorials : 1) http://www.linuxforu.com/2011/06/qemu-for-embedded-systems-development-part… 2) https://wiki.linaro.org/KenWerner/Sandbox/AndroidQEMU?highlight=%28QEMU%29|… On the TUTORIAL n. 1: 1) Created a small test program, test.c, with the basic “Hello world”: #include<stdio.h> int main(){ printf("Welcome to Open World\n"); } # gcc test.c -o test 2) Built the Linux kernel for ARM # tar -jxvf linux-2.6.37.tar.bz2 (but I tried with a lot of other kernel versions) # cd linux-2.6.37 # make menuconfig ARCH=arm # make ARCH=arm uImage -s # qemu-system-arm -M versatilepb -m 128M -kernel /home/user/Desktop/linux-2.6.37/arch/arm/boot/uImage RESULT = black screen inside the qemu-linaro window without error messages 3) Developed a dummy filesystem (hello.c) for testing #include<stdio.h> int main(){ while(1){ printf("Hello Open World\n"); getchar(); } } # gcc hello.c -static -o hello 4) Created a root filesystem # echo hello | cpio -o --format=newc > rootfs 5) Testing : qemu-system-arm -M versatilepb -m 128M -kernel /home/user/Desktop/ linux-2.6.37/arch/arm/boot/uImage -initrd rootfs -append "root=/dev/ram rdinit=/hello" RESULT = black screen inside the qemu-linaro window without error messages On the TUTORIAL n. 2 : 1) Patched : qemu-linaro-1.3.0-2012.12 with : sed -i "s/#define INITRD_LOAD_ADDR 0x00d00000/#define INITRD_LOAD_ADDR 0x01d00000/" qemu-linaro-1.3.0-2012.12/hw/arm_boot.c and also qemu-linaro 1.4 from the GIT rep with the same patch: sed -i "s/#define INITRD_LOAD_ADDR 0x00d00000/#define INITRD_LOAD_ADDR 0x01d00000/" qemu-linaro/hw/arm_boot.c 2) wget http://releases.linaro.org/12.05/android/images/vexpress-ics-gcc47-armlt-tr… gunzip vexpress-ics-gcc47-armlt-tracking-open.img.gz sudo kpartx -a vexpress-ics-gcc47-armlt-tracking-open.img sudo mount /dev/mapper/loop0p1 /mnt -o loop,ro cp /mnt/uImage /mnt/uInitrd . sudo umount /mnt sudo kpartx -d /dev/mapper/loop0p* dd if=uImage of=vmlinuz skip=64 bs=1 dd if=uInitrd of=initrd.gz skip=64 bs=1 3) Tried to boot Linaro Android 12.05 using qemu-linaro-1.3.0-2012.12 and also qemu-linaro 1.4 from the GIT rep on the Pandaboard ES with this : qemu-system-arm -M vexpress-a9 -m 1024 -smp 1 -snapshot -serial stdio -no-reboot -kernel vmlinuz -initrd initrd.gz -drive file=vexpress-ics-gcc47-armlt-tracking-open.img,if=sd,cache=writeback --append "console=tty0 console=ttyAMA0,38400n8 rootwait ro init=/init androidboot.console=ttyAMA0" and on the Samsung XE303C12-A01US Chromebook with this : qemu-system-arm -M vexpress-a15 -cpu-cortex-a15 -m 1024 -smp 1 -snapshot -serial stdio -no-reboot -kernel vmlinuz -initrd initrd.gz -drive file=vexpress-ics-gcc47-armlt-tracking-open.img,if=sd,cache=writeback --append "console=tty0 console=ttyAMA0,38400n8 rootwait ro init=/init androidboot.console=ttyAMA0" I've also tried wth : qemu-system-arm -M vexpress-a15 -cpu cortex-a15 -m 1024 -smp 1 -snapshot -serial stdio -no-reboot -kernel uImage -initrd uInitrd -drive file=vexpress-ics-gcc47-armlt-tracking-open.img,if=sd,cache=writeback --append "console=tty0 console=ttyAMA0,38400n8 rootwait ro init=/init androidboot.console=ttyAMA0" Also tried with different kind of combinations,like : -M versatilepb ; -M vexpress-a9 ; -cpu cortex-a9 ; -m 512 ; but the RESULT is still the smae = black screen inside the qemu-linaro window without error messages. Any help ? Instead,debian_lenny_armel_desktop is virtualized very well with qemu-linaro following this procedure : a) wget vmlinuz-2.6.32-5-versatile,initrd.img-2.6.32-5-versatile and debian_lenny_armel_desktop from here : http://people.debian.org/~aurel32/qemu/armel/ b) tried to virtualize debian_lenny_armel_desktop with : qemu-system-arm -M versatilepb -kernel vmlinuz-2.6.32-5-versatile -initrd initrd.img-2.6.32-5-versatile -hda debian_lenny_armel_desktop.qcow2 -append "root=/dev/sda1" and it works.... -- Mario.

12 years, 8 months

[ANNOUNCE] linux-linaro kernel schedule for 13.03

by Andrey Konovalov

Greetings, The current 13.03 schedule has been published on wiki: https://wiki.linaro.org/Platform/DevPlatform/LinuxLinaroKernelSchedule llct rebuild is planned later today. The 13.03 release would be v3.9-rc3 based (tentative). Please make sure that requests to add new topics (with the git branch to pull from) have been sent to me, or will be sent as soon as the topic is ready. I would appreciate a "heads up" like information on the new topics which are more complex than a couple patches on top of mainline. For the moment I am aware of the kvm topic only. Anything else? Thanks, Andrey

12 years, 8 months

ubi mount issue

by Malati C

Hi All, I am not sure whether this is the right forum to ask about my issue. Let me know. However this is really blocking for me and I do not have anyone at my work to help me out. Hence asking help - I am encountering a problem on my target board. Any help is hightly appreciated. On my target board which is SOM based on Marvel PXA series, ubiattach fails. The rootfs is ubi and comes up. I am trying to mount another partition to put all my configuration data. Here is the log - [root]#ubiformat /dev/mtd6 -s 2048 -f ./config.img ubiformat: mtd6 (nand), size 152305664 bytes (145.2 MiB), 1162 eraseblocks of 131072 bytes (128.0 KiB), min. I/O size 2048 bytes libscan: scanning eraseblock 1161 -- 100 % complete ubiformat: 1162 eraseblocks have valid erase counter, mean value is 0 ubiformat: flashing eraseblock 47 -- 100 % complete ubiformat: formatting eraseblock 1161 -- 100 % complete [root]#ubiattach /dev/ubi_ctrl -m 6 UBI: attaching mtd6 to ubi1 UBI: physical eraseblock size: 131072 bytes (128 KiB) UBI: logical eraseblock size: 126976 bytes UBI: smallest flash I/O unit: 2048 UBI: VID header offset: 2048 (aligned 2048) UBI: data offset: 4096 UBI error: vtbl_check: volume table check failed: record 0, error 9 ubiattach: error!: cannot attach mtd6 error 22 (Invalid argument) [root]# Let me know if you need any other information. Thanks Mchavva

12 years, 8 months

big.LITTLE MP status Mar 4, 2013

by David Zinman

https://wiki.linaro.org/projects/big.LITTLE.MP Work Items for functional completion: https://wiki.linaro.org/projects/big.LITTLE.MP/WorkItems Roadmap Cards: Improving HMP Linux scheduling - http://cards.linaro.org/browse/CARD-190 Blueprints and bugs are all now in a single Launchpad project for big.LITTLE: https://launchpad.net/linaro-big-little-system 2013.03 release for Virtual Express ========================================= https://releases.linaro.org/13.02/android/images/vexpress-linaro-mp Development ============= - Work out how to combine a single holistic ARM/Linaro solution - Feedback received - Upstream work, submitted this month, no schedule estimate - Provide basic scale invariant load contribution : cpupower*(currfreq/maxfreq)*load - work in progress - Ramping up benchmarking efforts on MP Blueprints ----------------- https://blueprints.launchpad.net/linaro-big-little-system/+spec/cpuidle-add… https://blueprints.launchpad.net/linaro-power-kernel/+spec/multi-cluster-cp… https://blueprints.launchpad.net/linaro-big-little-system/+spec/big.little.… https://blueprints.launchpad.net/linaro-big-little-system/+spec/sched-coope… https://blueprints.launchpad.net/linaro-power-kernel/+spec/sched-adaptive-n… https://blueprints.launchpad.net/linaro-big-little-system/+spec/timer-workq… https://blueprints.launchpad.net/linaro-power-kernel/+spec/scheduler-optimi… https://blueprints.launchpad.net/linaro-big-little-system/+spec/power-aware… QA === big.LITTLE MP LAVA Dashboard http://validation.linaro.org/lava-server/dashboard/image-reports/linaro-and… Testing: See attached spreadsheet http://lists.linaro.org/pipermail/linaro-dev/2013-February/015521.html https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0Ai9ggMs8bsGJdER3a… Bugs: https://bugs.launchpad.net/linaro-big-little-system/+bugs?field.tag=bl-mp -- David Zinman, Project Manager Linaro.org | Open source software for ARM SoCs

12 years, 8 months

[PATCH V2] arm64: add support for 8250/16550 earlyprintk

by Anup Patel

This patch adds support for using earlyprintk with 8250/16550 UART ports. The 8250/16550 UART can either have 8-bit or 32-bit aligned registers which is HW vendor dependent. Kernel args for 8-bit aligned regs: earlyprintk=uart8250-8bit,<phys_address> Kernel args for 32-bit aligned regs: earlyprintk=uart8250-32bit,<phys_address> Signed-off-by: Anup Patel <anup.patel(a)linaro.org> --- arch/arm64/kernel/early_printk.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/arm64/kernel/early_printk.c b/arch/arm64/kernel/early_printk.c index 7e320a2..c39e90b 100644 --- a/arch/arm64/kernel/early_printk.c +++ b/arch/arm64/kernel/early_printk.c @@ -24,11 +24,32 @@ #include <linux/io.h> #include <linux/amba/serial.h> +#include <linux/serial_reg.h> static void __iomem *early_base; static void (*printch)(char ch); /* + * 8250/16550 (8-bit aligned registers) single character TX. + */ +static void uart8250_8bit_printch(char ch) +{ + while (!(readb_relaxed(early_base + UART_LSR) & UART_LSR_THRE)) + ; + writeb_relaxed(ch, early_base + UART_TX); +} + +/* + * 8250/16550 (32-bit aligned registers) single character TX. + */ +static void uart8250_32bit_printch(char ch) +{ + while (!(readl_relaxed(early_base + (UART_LSR << 2)) & UART_LSR_THRE)) + ; + writel_relaxed(ch, early_base + (UART_TX << 2)); +} + +/* * PL011 single character TX. */ static void pl011_printch(char ch) @@ -47,6 +68,8 @@ struct earlycon_match { static const struct earlycon_match earlycon_match[] __initconst = { { .name = "pl011", .printch = pl011_printch, }, + { .name = "uart8250-8bit", .printch = uart8250_8bit_printch, }, + { .name = "uart8250-32bit", .printch = uart8250_32bit_printch, }, {} }; -- 1.7.9.5

12 years, 8 months

[PATCH v9 0/2] Add display-timing node parsing to exynos drm fimd

by Vikas Sajjan

Add display-timing node parsing to drm fimd and depends on the display helper patchset at http://lists.freedesktop.org/archives/dri-devel/2013-January/033998.html It also adds pinctrl support for drm fimd. changes since v8: - replaced IS_ERR() with IS_ERR_OR_NULL(), because devm_pinctrl_get_select_default can return NULL, If CONFIG_PINCTRL is disabled. - modified the error log, such that it shall NOT cross 80 column. - added Acked-by. changes since v7: - addressed comments from Joonyoung Shim <jy0922.shim(a)samsung.com> to remove a unnecessary variable. changes since v6: addressed comments from Inki Dae <inki.dae(a)samsung.com> to separated out the pinctrl functionality and made a separate patch. changes since v5: - addressed comments from Inki Dae <inki.dae(a)samsung.com>, to remove the allocation of 'fbmode' and replaced '-1'in "of_get_fb_videomode(dev->of_node, fbmode, -1)" with OF_USE_NATIVE_MODE. changes since v4: - addressed comments from Paul Menzel <paulepanter(a)users.sourceforge.net>, to modify the commit message changes since v3: - addressed comments from Sean Paul <seanpaul(a)chromium.org>, to modify the return values and print messages. changes since v2: - moved 'devm_pinctrl_get_select_default' function call under 'if (pdev->dev.of_node)', this makes NON-DT code unchanged. (reported by: Rahul Sharma <r.sh.open(a)gmail.com>) changes since v1: - addressed comments from Sean Paul <seanpaul(a)chromium.org> Vikas Sajjan (2): video: drm: exynos: Add display-timing node parsing using video helper function video: drm: exynos: Add pinctrl support to fimd drivers/gpu/drm/exynos/exynos_drm_fimd.c | 33 ++++++++++++++++++++++++++---- 1 file changed, 29 insertions(+), 4 deletions(-) -- 1.7.9.5

12 years, 8 months

[INFORMATION] Please post your patches to linaro-kernel mailing list.

by Viresh Kumar

Hi Guys, There was mail chain earlier which has discussed this earlier but not sure if everybody got the final conclusion or not (that's why we are still posting on linaro-dev). Please embed linaro-kernel instead of linaro-dev in all your scripts that you use for sending patches. Thanks in Advance. -- viresh

12 years, 8 months

[PATCH] arm64: add support for 8250/16550 earlyprintk

by Anup Patel

This patch adds support for using earlyprintk with 8250/16550 UART ports. The 8250/16550 UART can either have 8-bit or 32-bit aligned registers which is HW vendor dependent. Kernel args for 8-bit aligned regs: earlyprintk=uart8250-8bit,<phys_address> Kernel args for 32-bit aligned regs: earlyprintk=uart8250-16bit,<phys_address> Signed-off-by: Anup Patel <anup.patel(a)linaro.org> --- arch/arm64/kernel/early_printk.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/arm64/kernel/early_printk.c b/arch/arm64/kernel/early_printk.c index 7e320a2..d57f300 100644 --- a/arch/arm64/kernel/early_printk.c +++ b/arch/arm64/kernel/early_printk.c @@ -24,11 +24,32 @@ #include <linux/io.h> #include <linux/amba/serial.h> +#include <uapi/linux/serial_reg.h> static void __iomem *early_base; static void (*printch)(char ch); /* + * 8250/16550 (8-bit aligned registers) single character TX. + */ +static void uart8250_8bit_printch(char ch) +{ + while (!(readb_relaxed(early_base + UART_LSR) & UART_LSR_THRE)) + ; + writeb_relaxed(ch, early_base + UART_TX); +} + +/* + * 8250/16550 (32-bit aligned registers) single character TX. + */ +static void uart8250_32bit_printch(char ch) +{ + while (!(readl_relaxed(early_base + (UART_LSR << 2)) & UART_LSR_THRE)) + ; + writel_relaxed(ch, early_base + (UART_TX << 2)); +} + +/* * PL011 single character TX. */ static void pl011_printch(char ch) @@ -47,6 +68,8 @@ struct earlycon_match { static const struct earlycon_match earlycon_match[] __initconst = { { .name = "pl011", .printch = pl011_printch, }, + { .name = "uart8250-8bit", .printch = uart8250_8bit_printch, }, + { .name = "uart8250-32bit", .printch = uart8250_32bit_printch, }, {} }; -- 1.7.9.5

12 years, 8 months

Re: 13.01 Versatile Express Android build unstable

by Jon Medhurst (Tixy)

On Tue, 2013-02-26 at 11:27 -0800, D D wrote: > Yes, I have tried both the config in the release notes as well as > configurations to boot A7. > The configurations to boot A7 hang while executing the BOOTSCRIPT. > The release note configurations get past that state, boot up the > kernel and hang as shown in this thread. > As a first step, I am just trying to get the release note > configuration working without the hang. I've just tested out the 13.01 release notes again by following them to recreate and replacing my TC2's firmware and configure UEFI; and that works for me to boot a fresh 13.01 Android image from an SD card. If you aren't having any success with that configuration, then further things I can suggest are: 1) To make sure any firmware changes have really taken hold, try erasing all the NOR flash. You can do this from the bootloader Cmd> prompt by entering "flash" to get a Flash> prompt, then enter 'eraseall'. After the flash has finished erasing, reboot the board and the firmware will be reprogrammed again. 2) In case there is an error in the UEFI config (I know it's a bit fiddly to enter) then you could try the Linaro firmware zip we have for the forthcoming 13.02 release [1]. This has a UEFI version which ignores the SD card UUID and so doesn't need reconfiguring every time you create a new disk image. It also has the benefit that the default boot config will work without you needing to manually set anything. If you try this latest UEFI, I suggest you also erase the flash as above, to make extra sure there is no old config left over from a previous version. [1] https://wiki.linaro.org/ARM/VersatileExpress?action=AttachFile&do=get&targe… -- Tixy

12 years, 8 months

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