[PATCH v6 6/8] arm64: dts: ti: k3-serdes: Add SERDES0/SERDES1 lane-muxing macros for J722S

Siddharth Vadapalli s-vadapalli at ti.com
Wed Jun 12 06:24:07 PDT 2024


The SERDES0 and SERDES1 instances of SERDES on J722S are single lane
SERDES which are individually muxed across different peripherals.

LANE0 of SERDES0 is muxed between USB and CPSW while LANE0 of SERDES1 is
muxed between PCIe and CPSW.

Define the lane-muxing macros to be used as the idle state values.

Co-developed-by: Ravi Gunasekaran <r-gunasekaran at ti.com>
Signed-off-by: Ravi Gunasekaran <r-gunasekaran at ti.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli at ti.com>
Reviewed-by: Roger Quadros <rogerq at kernel.org>
---
v5:
https://lore.kernel.org/r/20240604085252.3686037-6-s-vadapalli@ti.com/
Changes since v5:
- Collected Reviewed-by tag from Roger Quadros <rogerq at kernel.org>

 arch/arm64/boot/dts/ti/k3-serdes.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-serdes.h b/arch/arm64/boot/dts/ti/k3-serdes.h
index a011ad893b44..ef3606068140 100644
--- a/arch/arm64/boot/dts/ti/k3-serdes.h
+++ b/arch/arm64/boot/dts/ti/k3-serdes.h
@@ -201,4 +201,12 @@
 #define J784S4_SERDES4_LANE3_USB		0x2
 #define J784S4_SERDES4_LANE3_IP4_UNUSED		0x3
 
+/* J722S */
+
+#define J722S_SERDES0_LANE0_USB			0x0
+#define J722S_SERDES0_LANE0_QSGMII_LANE2	0x1
+
+#define J722S_SERDES1_LANE0_PCIE0_LANE0		0x0
+#define J722S_SERDES1_LANE0_QSGMII_LANE1	0x1
+
 #endif /* DTS_ARM64_TI_K3_SERDES_H */
-- 
2.40.1




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