2024-06-04 09:03:15

by Siddharth Vadapalli

Subject: [PATCH v5 5/7] arm64: dts: ti: k3-serdes: Add SERDES0/SERDES1 lane-muxing macros for J722S

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 <[email protected]>
Signed-off-by: Ravi Gunasekaran <[email protected]>
Signed-off-by: Siddharth Vadapalli <[email protected]>
---
v4:
https://lore.kernel.org/r/[email protected]/
No changes since v4.

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

2024-06-06 07:38:35

by Roger Quadros

Subject: Re: [PATCH v5 5/7] arm64: dts: ti: k3-serdes: Add SERDES0/SERDES1 lane-muxing macros for J722S

On 04/06/2024 11:52, Siddharth Vadapalli wrote:
> 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 <[email protected]>
> Signed-off-by: Ravi Gunasekaran <[email protected]>
> Signed-off-by: Siddharth Vadapalli <[email protected]>

Reviewed-by: Roger Quadros <[email protected]>