Hello Tyler, On Fri, Nov 14, 2014 at 3:30 AM, Tyler Baker <tyler.baker@xxxxxxxxxx> wrote: > In recent upstream kernels, exynos5420-based arndale boards have been Boot logs are only for 5250, typo ? > producing boot-time errors due to the fact they failed to set the cpu > voltage. These message flood the serial console even after userspace > has been loaded, yielding the console unusable without forcing a lower > log level. These errors are produced _only_ with the > multi_v7_defconfig and they are _not_ present > with exynos_defconfig. Here are some recent boot logs showing the boot errors: > > mainline/v3.18-rc4-65-g2c54396: > multi_v7_defconfig: > http://storage.armcloud.us/kernel-ci/mainline/v3.18-rc4-65-g2c54396/arm-multi_v7_defconfig/boot-exynos5250-arndale.html > exynos_defconfig: > http://storage.armcloud.us/kernel-ci/mainline/v3.18-rc4-65-g2c54396/arm-exynos_defconfig/boot-exynos5250-arndale.html >From the boot logs it appears that the S5M8767 regulator does not get probed with multi_v7_defconfig and you get the following messages: [ 1.147412] deviceless supply vdd_arm not found, using dummy regulator [ 1.152669] exynos-cpufreq exynos-cpufreq: failed to set cpu voltage to 1300000 [ 1.159771] cpufreq: __target_index: Failed to change cpu frequency: -22 Both multi_v7_defconfig and exynos_defconfig have the S5M8767 regulator enabled. However multi_v7_defconfig does not have the S3C I2C controller enabled while exynos_defconfig does. Can you re-check after enabling CONFIG_I2C_S3C2410 ? Regards, Abhilash > > next/next-20141113: > multi_v7_defconfig: > http://storage.armcloud.us/kernel-ci/next/next-20141113/arm-multi_v7_defconfig/boot-exynos5250-arndale.html > exynos_defconfig: > http://storage.armcloud.us/kernel-ci/next/next-20141113/arm-exynos_defconfig/boot-exynos5250-arndale.html > > arm-soc/v3.18-rc4-185-gbfcf8f9: > multi_v7_defconfig: > http://storage.armcloud.us/kernel-ci/arm-soc/v3.18-rc4-185-gbfcf8f9/arm-multi_v7_defconfig/boot-exynos5250-arndale.html > exynos_defconfig: > http://storage.armcloud.us/kernel-ci/arm-soc/v3.18-rc4-185-gbfcf8f9/arm-exynos_defconfig/boot-exynos5250-arndale.html > > Cheers, > > -- > Tyler Baker > Tech Lead, LAVA > Linaro.org | Open source software for ARM SoCs > Follow Linaro: http://www.facebook.com/pages/Linaro > http://twitter.com/#!/linaroorg - http://www.linaro.org/linaro-blog > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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