[v2] arm64: dts: qcom: sc8280xp: PCIe fixes and GICv3 ITS enable

[PATCH v2 06/12] arm64: dts: qcom: sc8280xp-crd: limit pcie4 link speed

Posted by Johan Hovold 1 year, 11 months ago

Limit the WiFi PCIe link speed to Gen2 speed (500 MB/s), which is the
speed that Windows uses.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
index ffc4406422ae..41215567b3ae 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
@@ -563,6 +563,8 @@ &pcie3a_phy {
 };
 
 &pcie4 {
+	max-link-speed = <2>;
+
 	perst-gpios = <&tlmm 141 GPIO_ACTIVE_LOW>;
 	wake-gpios = <&tlmm 139 GPIO_ACTIVE_LOW>;
 
-- 
2.43.0

Re: [PATCH v2 06/12] arm64: dts: qcom: sc8280xp-crd: limit pcie4 link speed

Posted by Konrad Dybcio 1 year, 11 months ago

On 23.02.2024 16:21, Johan Hovold wrote:
> Limit the WiFi PCIe link speed to Gen2 speed (500 MB/s), which is the
> speed that Windows uses.
> 
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Konrad