[PATCHv5] ARM: dts: add exynos5422-cpus.dtsi to correct cpu order

Krzysztof Kozlowski k.kozlowski at samsung.com
Tue Jul 7 16:41:19 PDT 2015


On 07.07.2015 23:30, Kukjin Kim wrote:
> Krzysztof Kozlowski wrote:
>>
>> On 06.07.2015 23:12, 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.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 at samsung.com>
>>> Signed-off-by: Chanho Park <chanho61.park at samsung.com>
>>> ---
>>> 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 sent it to Kukjin later for 4.3 unless
>> he picks it up from LKML.
>>
> Hi Krzysztof,
> 
> If you're OK, I'd like to pick this up into Samsung tree with your ack based on
> 4.2-rc1.

Yes, please go ahead. It already has my reviewed-by tag. However the sob
does not match author so it should be resent once again.

Best regards,
Krzysztof




More information about the linux-arm-kernel mailing list