On Thu, Apr 23, 2020 at 11:05 AM Peter Geis <pgwipeout@xxxxxxxxx> wrote: > > The rk3399 is capable of operating at PCIe gen 2 as per the TRM. > The device-tree incorrectly limits us to gen 1. > > Correctly set the maximum link speed to <2>. > > Tested on the rockpro64. Note, this was tested on the rockpro64 after I performed the hardware fixes as delineated at https://forum.pine64.org/showthread.php?tid=8374 We probably will have to drop this back to <1> on board specific dts files if issues are discovered. > > Signed-off-by: Peter Geis <pgwipeout@xxxxxxxxx> > --- > arch/arm64/boot/dts/rockchip/rk3399.dtsi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi > index 74f2c3d49095..e9efd330810b 100644 > --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi > +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi > @@ -248,7 +248,7 @@ > <0 0 0 3 &pcie0_intc 2>, > <0 0 0 4 &pcie0_intc 3>; > linux,pci-domain = <0>; > - max-link-speed = <1>; > + max-link-speed = <2>; > msi-map = <0x0 &its 0x0 0x1000>; > phys = <&pcie_phy 0>, <&pcie_phy 1>, > <&pcie_phy 2>, <&pcie_phy 3>; > -- > 2.20.1 > _______________________________________________ Linux-rockchip mailing list Linux-rockchip@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-rockchip
