From: klimov.linux@gmail.com (Alexey Klimov)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 3/3] ARM: dts: add MCT property use-cp15-phys-counter for exynos5422-odroidxu3
Date: Tue, 28 Jul 2015 00:28:48 +0300 [thread overview]
Message-ID: <1438032528.17734.49.camel@gmail.com> (raw)
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
next reply other threads:[~2015-07-27 21:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-27 21:28 Alexey Klimov [this message]
2015-07-28 5:53 ` [RFC PATCH 3/3] ARM: dts: add MCT property use-cp15-phys-counter for exynos5422-odroidxu3 Krzysztof Kozlowski
2015-07-28 12:34 ` Alexey Klimov
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