Since "serdes0" and "serdes1" which are the sub-nodes of "serdes_wiz0" and "serdes_wiz1" respectively, have been disabled in the SoC file already, and, given that these sub-nodes will only be enabled in a board file if the board utilizes any of the SERDES instances and the peripherals bound to them, we end up in a situation where the board file doesn't explicitly disable "serdes_wiz0" and "serdes_wiz1". As a consequence of this, the following errors show up when booting Linux:
wiz bus@f0000:phy@f000000: probe with driver wiz failed with error -12 ... wiz bus@f0000:phy@f010000: probe with driver wiz failed with error -12
To not only fix the above, but also, in order to follow the convention of disabling device-tree nodes in the SoC file and enabling them in the board files for those boards which require them, disable "serdes_wiz0" and "serdes_wiz1" device-tree nodes.
Fixes: 628e0a0118e6 ("arm64: dts: ti: k3-j722s-main: Add SERDES and PCIe support") Cc: stable@vger.kernel.org Signed-off-by: Siddharth Vadapalli s-vadapalli@ti.com Reviewed-by: Udit Kumar u-kumar1@ti.com ---
v2 of this patch is at: https://lore.kernel.org/r/20250408103606.3679505-3-s-vadapalli@ti.com/ Changes since v2: - Collected Reviewed-by tags from Udit Kumar u-kumar1@ti.com.
Regards, Siddharth.
arch/arm64/boot/dts/ti/k3-j722s-main.dtsi | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi index 6850f50530f1..beda9e40e931 100644 --- a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi @@ -32,6 +32,8 @@ serdes_wiz0: phy@f000000 { assigned-clocks = <&k3_clks 279 1>; assigned-clock-parents = <&k3_clks 279 5>;
+ status = "disabled"; + serdes0: serdes@f000000 { compatible = "ti,j721e-serdes-10g"; reg = <0x0f000000 0x00010000>; @@ -70,6 +72,8 @@ serdes_wiz1: phy@f010000 { assigned-clocks = <&k3_clks 280 1>; assigned-clock-parents = <&k3_clks 280 5>;
+ status = "disabled"; + serdes1: serdes@f010000 { compatible = "ti,j721e-serdes-10g"; reg = <0x0f010000 0x00010000>;