On 4 July 2013 11:33, Vijay Kilari <vijay.kil...@gmail.com> wrote: > On Wed, Jul 3, 2013 at 8:48 PM, Jon Medhurst (Tixy) <t...@linaro.org> wrote: >> On Wed, 2013-07-03 at 15:30 +0100, Jon Medhurst (Tixy) wrote: >>> On Wed, 2013-07-03 at 19:03 +0530, Vijay Kilari wrote: >>> > Hi, >>> > >>> > With latest Linaro ARM kernel mentioned below fails to boot when >>> > following configs are enabled >>> > CONFIG_VEXPRESS_SPC & CONFIG_ARCH_VEXPRESS_TC2_PM >>> > >>> > OR >>> > >>> > Even just enabling CONFIG_VEXPRESS_PSCI and passing psci as kernel >>> > bootargs fails >>> > >>> > git://git.linaro.org/landing-teams/working/arm/kernel.git >>> > >>> > please let me know if you have any information on why it fails?. >>> >>> You'll need to provide us more of a clue a to what you are doing. >>> >>> 1. When you say 'fails to boot', do you get any messages out of the >>> serial port? Can you provide a log? >>> > No log. Just fails at Starting kernel.. > >>> 2. You didn't mention that you had enabled CONFIG_BIG_LITTLE=y, this >>> will be needed and possibly others. We have all the required configs for >>> all vexpress CoreTiles, including TC2, in linaro/configs/vexpress.conf. > > CONFIG_BIG_LITTLE=y is enabled by default with below suggested config. > >>> 3. How are you generating the kernel config? In Linaro we use the >>> command: >>> >>> ARCH=arm scripts/kconfig/merge_config.sh \ >>> linaro/configs/linaro-base.conf \ >>> linaro/configs/android.conf \ >>> linaro/configs/big-LITTLE-MP.conf \ >>> linaro/configs/big-LITTLE-IKS.conf \ >>> linaro/configs/vexpress.conf >>> > >>> (If you want a plain Linux kernel rather than an Android one, replace >>> 'android.conf' with 'distribution.conf'.) >>> > > > I generated config with the above command. However I am using Versatile > express > with A15x2 and A7x3 (versatile TC2) So I changed > 1) NR_CPUS=5 in vexpress.conf file > 2) Used distribution.conf file instead on android.conf > Also I used vexpress-v2p-ca15_a7.dtb file > Result: Hangs at very beginning.. > Logs: > > reserving fdt memory region: addr=ff000000 size=1000000 > Loading Device Tree to 9fee2000, end 9fee8a98 ... OK > > Starting kernel .. >
So you're using u-boot. Where did you get the u-boot binary from? There is no official u-boot binary for TC2... > I even tried without linaro/configs/big-LITTLE-MP.conf \ > linaro/configs/big-LITTLE-IKS.conf \ > but result is same. It hangs > >>> 4. What branch were you using in the git you mention? Though as Ryan >>> said, you should really use the main linaro kernel which is the kernel >>> we test and release each month. That is the linux-linaro branch of >>> git://git.linaro.org/kernel/linux-linaro-tracking.git >>> > > Yes. Used suggested git > >>> 5. Have you installed the firmware as described in the 'Firmware Update' >>> tab of http://releases.linaro.org/13.06/android/vexpress ? This says to >>> use the version 5.0 Versatile Express CD, plus some extra patches from >>> ARM, plus some extra config files. All of these are needed to get a >>> working system. >> >> I guess another good question is does last month's Linaro release boot >> on your board? E.g. the kernel (zImage or uImage) and dtb >> (v2p-ca15-tc2.dtb) from: >> http://releases.linaro.org/13.06/android/vexpress/boot.tar.bz2 >> > Will test with this release and let you know the result That would be helpful. > >> If that works, then we know the problem lies somewhere with the kernel >> or config you are trying to build. And if the last Linaro release >> doesn't boot, then the problem probably lies with the firmware and/or >> config files on the vexpress motherboard. >> >> -- >> Tixy >> > > _______________________________________________ > linaro-dev mailing list > linaro-dev@lists.linaro.org > http://lists.linaro.org/mailman/listinfo/linaro-dev _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
