Krzysztof Kozlowski wrote: > > On 14.07.2015 09:24, Chanho Park wrote: > > The odroid-xu3 board which is based on exynos5422 not exynos5800 is > > booted from cortex-a7 core unlike exynos5800. The odroid-xu3's cpu order > > is quite strange. cpu0 and cpu5-7 are cortex-a7 cores and cpu1-4 are > > cortex-a15 cores. To correct this mis-odering, I added exynos5422-cpus.dtsi > > and reversing cpu orders from exynos5420. Now, cpu0-3 are cortex-a7 and > > cpu4-7 are cortex-a15. > > > > Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx> > > Signed-off-by: Chanho Park <parkch98@xxxxxxxxx> > > --- > > Change from v4: > > - Resend patch with correct signed-off > > > > Changes from v4: > > - Remove temporal patch in e-mail body > > > > Changes from v3: > > - include this exynos5422-cpus.dtsi in the exynos5422-odroidxu3-common.dtsi > > > > Changes from v2: > > - drop inclusion of exynos5420.dtsi from exynos5422-cpus.dtsi > > - drop compatibles from exynos5422-cpus.dtsi > > > > Changes from v1: > > - rename exynos5422.dtsi to exynos5422-cpus.dtsi > > - include the dtsi file top of the exynos5422-odroidxu3.dts > > > > Secondary cpu booting problem[1] is not resolved yet. Need more investigations > > to work booting 8 cores correctly. > > > > [1]: http://www.spinics.net/lists/linux-samsung-soc/msg45525.html > > > > arch/arm/boot/dts/exynos5422-cpus.dtsi | 81 ++++++++++++++++++++++ > > arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 1 + > > 2 files changed, 82 insertions(+) > > create mode 100644 arch/arm/boot/dts/exynos5422-cpus.dtsi > > Thanks, applied to my tree. I'll send it to Kukjin for v4.3 unless he > picks it also. > Well, let me see. I'm thinking we need to sort out the cpu ordering and dtsi inclusions for exynos5420, 5422 and 5800 related to DT files. See, 1) exynos5420 DT (cpu0~3: a15, cpu 4~7: a7) 2) exynos5800 DT is including exynos5420 DT 3) exynos5422 and exynos5800 based boards are including exynos5800 DT. Then making exynos5422-cpus DT for exynos5422 based boards? (cpu0~3: a7, cpu4~7: a15) I think, it could cause confusion when new board based on them are added because it's not clear and the boot cpu could be selected by bootloader part. So how about creating exynos5422-cpus and exynos5420-cpus then including the cpus DT file in each board accordingly? Or more clear way to avoid confusion? - Kukjin -- 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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