[PATCH v2 03/14] arm64: dts: mediatek: mt7622: add support for coherent DMA

Felix Fietkau
2022-04-05T19:59:17Z

It improves performance by eliminating the need for a cache flush on rx and tx

Signed-off-by: Felix Fietkau <nbd@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@4000 {
};

cci_control2: slave-if@5000 {
- 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@1b100000 {
power-domains = <&scpsys MT7622_POWER_DOMAIN_ETHSYS>;
mediatek,ethsys = <&ethsys>;
mediatek,sgmiisys = <&sgmiisys>;
+ mediatek,cci-control = <&cci_control2>;
+ dma-coherent;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
--
2.35.1