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Message-Id: <20220405195755.10817-4-nbd@nbd.name>
Date: Tue, 5 Apr 2022 21:57:44 +0200
From: Felix Fietkau <nbd@....name>
To: netdev@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 03/14] arm64: dts: mediatek: mt7622: add support for coherent DMA
It improves performance by eliminating the need for a cache flush on rx and tx
Signed-off-by: Felix Fietkau <nbd@....name>
---
arch/arm64/boot/dts/mediatek/mt7622.dtsi | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
index 6f8cb3ad1e84..a2257ec6d256 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -357,7 +357,7 @@ cci_control1: slave-if@...0 {
};
cci_control2: slave-if@...0 {
- compatible = "arm,cci-400-ctrl-if";
+ compatible = "arm,cci-400-ctrl-if", "syscon";
interface-type = "ace";
reg = <0x5000 0x1000>;
};
@@ -945,6 +945,8 @@ eth: ethernet@...00000 {
power-domains = <&scpsys MT7622_POWER_DOMAIN_ETHSYS>;
mediatek,ethsys = <ðsys>;
mediatek,sgmiisys = <&sgmiisys>;
+ mediatek,cci-control = <&cci_control2>;
+ dma-coherent;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
--
2.35.1
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