arm64: dts: rockchip: add max-link-speed for rk3399

Per the errata of TRM, rk3399 won't support gen2 from
now on, so let's set max-link-speed to 1 in order not
to doing training for gen2.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 3761d061c1732d60c55d264170590ee1223653b4..92b731f592c63b95838b679edb8b7a91f3c17bdf 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -297,6 +297,7 @@
                                <0 0 0 2 &pcie0_intc 1>,
                                <0 0 0 3 &pcie0_intc 2>,
                                <0 0 0 4 &pcie0_intc 3>;
+               max-link-speed = <1>;
                msi-map = <0x0 &its 0x0 0x1000>;
                phys = <&pcie_phy>;
                phy-names = "pcie-phy";