[PATCH v5 5/6] arm64: dts: ti: k3-j7200-common-proc-board: Configure the SERDES lane function

Roger Quadros rogerq at ti.com
Wed Sep 30 08:20:31 EDT 2020


From: Kishon Vijay Abraham I <kishon at ti.com>

First two lanes of SERDES is connected to PCIe, third lane is
connected to QSGMII and the last lane is connected to USB. However,
Cadence torrent SERDES doesn't support more than 2 protocols
at the same time. Configure it only for PCIe and QSGMII.

Signed-off-by: Kishon Vijay Abraham I <kishon at ti.com>
Signed-off-by: Roger Quadros <rogerq at ti.com>
Reviewed-by: Vignesh Raghavendra <vigneshr at ti.com>
---
 arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
index 1541311cecb4..ddbc2163e698 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
@@ -7,6 +7,7 @@
 
 #include "k3-j7200-som-p0.dtsi"
 #include <dt-bindings/net/ti-dp83867.h>
+#include <dt-bindings/mux/ti-serdes.h>
 
 / {
 	chosen {
@@ -185,3 +186,8 @@
 	ti,driver-strength-ohm = <50>;
 	disable-wp;
 };
+
+&serdes_ln_ctrl {
+	idle-states = <J7200_SERDES0_LANE0_PCIE1_LANE0>, <J7200_SERDES0_LANE1_PCIE1_LANE1>,
+		      <J7200_SERDES0_LANE2_QSGMII_LANE1>, <J7200_SERDES0_LANE3_IP4_UNUSED>;
+};
-- 
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