[PATCH v1 2/4] arm64: dts: rockchip: rk356x: Add dma-noncoherent property to GIC node

From: Dmitry Osipenko
Date: Sat Feb 15 2025 - 18:55:34 EST


Rockchip 3566/8 SoCs are affected by the GIC integration issue where
GIC reports that it supports programmable shareability in a feature
register, while in fact it doesn't support this feature. Rockchip
assigned Errata ID #3568001 for the issue.

Add dma-noncoherent GIC property, denoting that a SW quirk is required
for the GIC.

Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk356x-base.dtsi | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
index de5e6c0c3d24..28be38b7182e 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x-base.dtsi
@@ -284,6 +284,7 @@ gic: interrupt-controller@fd400000 {
mbi-alias = <0x0 0xfd410000>;
mbi-ranges = <296 24>;
msi-controller;
+ dma-noncoherent;
};

usb_host0_ehci: usb@fd800000 {
--
2.48.1