* [RFC PATCH 3/3] ARM: dts: add MCT property use-cp15-phys-counter for exynos5422-odroidxu3
@ 2015-07-27 21:28 Alexey Klimov
2015-07-28 5:53 ` Krzysztof Kozlowski
0 siblings, 1 reply; 3+ messages in thread
From: Alexey Klimov @ 2015-07-27 21:28 UTC (permalink / raw)
To: linux-arm-kernel
Speedup MCT operation on odroid-xu3 dev board by using
coprocessor 64-bit counter instead of reading same counter
located in mmio region.
Tested on Odroid-xu3.
Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
---
arch/arm/boot/dts/exynos5422-odroidxu3.dts | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
index 78e6a50..b7f6c8f 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
@@ -18,6 +18,10 @@
compatible = "hardkernel,odroid-xu3", "samsung,exynos5800", "samsung,exynos5";
};
+&mct {
+ use-cp15-phys-counter;
+};
+
&i2c_0 {
status = "okay";
--
2.1.4
^ permalink raw reply related [flat|nested] 3+ messages in thread* [RFC PATCH 3/3] ARM: dts: add MCT property use-cp15-phys-counter for exynos5422-odroidxu3
2015-07-27 21:28 [RFC PATCH 3/3] ARM: dts: add MCT property use-cp15-phys-counter for exynos5422-odroidxu3 Alexey Klimov
@ 2015-07-28 5:53 ` Krzysztof Kozlowski
2015-07-28 12:34 ` Alexey Klimov
0 siblings, 1 reply; 3+ messages in thread
From: Krzysztof Kozlowski @ 2015-07-28 5:53 UTC (permalink / raw)
To: linux-arm-kernel
On 28.07.2015 06:28, Alexey Klimov wrote:
> Speedup MCT operation on odroid-xu3 dev board by using
> coprocessor 64-bit counter instead of reading same counter
> located in mmio region.
>
> Tested on Odroid-xu3.
>
> Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
> ---
> arch/arm/boot/dts/exynos5422-odroidxu3.dts | 4 ++++
Please do this in Odroid XU3 common DTSI:
arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> index 78e6a50..b7f6c8f 100644
> --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
> @@ -18,6 +18,10 @@
> compatible = "hardkernel,odroid-xu3", "samsung,exynos5800", "samsung,exynos5";
> };
>
> +&mct {
> + use-cp15-phys-counter;
> +};
> +
Put the node in alphabetical position.
Best regards,
Krzysztof
> &i2c_0 {
> status = "okay";
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread* [RFC PATCH 3/3] ARM: dts: add MCT property use-cp15-phys-counter for exynos5422-odroidxu3
2015-07-28 5:53 ` Krzysztof Kozlowski
@ 2015-07-28 12:34 ` Alexey Klimov
0 siblings, 0 replies; 3+ messages in thread
From: Alexey Klimov @ 2015-07-28 12:34 UTC (permalink / raw)
To: linux-arm-kernel
Hi Krzysztof,
On Tue, Jul 28, 2015 at 8:53 AM, Krzysztof Kozlowski
<k.kozlowski@samsung.com> wrote:
> On 28.07.2015 06:28, Alexey Klimov wrote:
>> Speedup MCT operation on odroid-xu3 dev board by using
>> coprocessor 64-bit counter instead of reading same counter
>> located in mmio region.
>>
>> Tested on Odroid-xu3.
>>
>> Signed-off-by: Alexey Klimov <klimov.linux@gmail.com>
>> ---
>> arch/arm/boot/dts/exynos5422-odroidxu3.dts | 4 ++++
>
> Please do this in Odroid XU3 common DTSI:
> arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
>> 1 file changed, 4 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
>> index 78e6a50..b7f6c8f 100644
>> --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts
>> +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts
>> @@ -18,6 +18,10 @@
>> compatible = "hardkernel,odroid-xu3", "samsung,exynos5800", "samsung,exynos5";
>> };
>>
>> +&mct {
>> + use-cp15-phys-counter;
>> +};
>> +
>
> Put the node in alphabetical position.
>
> Best regards,
> Krzysztof
Thanks. Will do it.
--
Best regards, Klimov Alexey
^ permalink raw reply [flat|nested] 3+ messages in thread
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2015-07-27 21:28 [RFC PATCH 3/3] ARM: dts: add MCT property use-cp15-phys-counter for exynos5422-odroidxu3 Alexey Klimov
2015-07-28 5:53 ` Krzysztof Kozlowski
2015-07-28 12:34 ` Alexey Klimov
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