[PATCH v6 1/4] arm64: dts: qcom: x1e80100: Add PCIe lane equalization preset properties
From: Krishna Chaitanya Chundru
Date: Mon Feb 10 2025 - 02:30:39 EST
Add PCIe lane equalization preset properties for 8 GT/s and 16 GT/s data
rates used in lane equalization procedure.
Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@xxxxxxxxxxxxxxxx>
---
This patch depends on the this dt binding pull request which got recently
merged: https://github.com/devicetree-org/dt-schema/pull/146
---
---
arch/arm64/boot/dts/qcom/x1e80100.dtsi | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index 4936fa5b98ff..1b815d4eed5c 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -3209,6 +3209,11 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
phys = <&pcie3_phy>;
phy-names = "pciephy";
+ eq-presets-8gts = /bits/ 16 <0x5555 0x5555 0x5555 0x5555>,
+ /bits/ 16 <0x5555 0x5555 0x5555 0x5555>;
+
+ eq-presets-16gts = /bits/ 8 <0x55 0x55 0x55 0x55 0x55 0x55 0x55 0x55>;
+
operating-points-v2 = <&pcie3_opp_table>;
status = "disabled";
@@ -3411,6 +3416,10 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
phys = <&pcie6a_phy>;
phy-names = "pciephy";
+ eq-presets-8gts = /bits/ 16 <0x5555 0x5555 0x5555 0x5555>;
+
+ eq-presets-16gts = /bits/ 8 <0x55 0x55 0x55 0x55>;
+
status = "disabled";
};
@@ -3538,6 +3547,8 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
phys = <&pcie5_phy>;
phy-names = "pciephy";
+ eq-presets-8gts = /bits/ 16 <0x5555 0x5555>;
+
status = "disabled";
};
@@ -3662,6 +3673,8 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
phys = <&pcie4_phy>;
phy-names = "pciephy";
+ eq-presets-8gts = /bits/ 16 <0x5555 0x5555>;
+
status = "disabled";
pcie4_port0: pcie@0 {
--
2.34.1