| Message ID | 20201231125214.25733-4-nuumiofi@gmail.com (mailing list archive) |
|---|---|
| State | RFC |
| Delegated to: | Lorenzo Pieralisi |
| Headers | show |
| Series | provide workaround for Rockchip PCIe bus scan crash with optional delay | expand |
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi index 6e553ff47534..256c357c069e 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi @@ -546,6 +546,7 @@ &pcie0 { num-lanes = <4>; pinctrl-names = "default"; pinctrl-0 = <&pcie_perst>; + rockchip,bus-scan-delay-ms = <1100>; vpcie12v-supply = <&vcc12v_dcin>; vpcie3v3-supply = <&vcc3v3_pcie>; status = "okay";
Add delay before RockPro64 PCIe bus scan as a workaround for some devices causing a crash like many LSI SAS controller based RAID controllers and host bus adapters. As a side effect this slows down system startup by the amount of delay even with devices that don't need the delay to work. Signed-off-by: Jari Hämäläinen <nuumiofi@gmail.com> --- arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi | 1 + 1 file changed, 1 insertion(+)