[PATCH 2/2] arm64: dts: ti: k3-j721e-main: Add ICSSG MDIO nodes

Grygorii Strashko grygorii.strashko at ti.com
Thu May 27 08:13:03 PDT 2021



On 15/05/2021 01:47, Suman Anna wrote:
> The ICSSGs on K3 J721E SoCs contain an MDIO controller that can
> be used to control external PHYs associated with the Industrial
> Ethernet peripherals within each ICSSG instance. The MDIO module
> used within the ICSSG is similar to the MDIO Controller used
> in TI Davinci SoCs. A bus frequency of 1 MHz is chosen for the
> MDIO operations.
> 
> The nodes are added and enabled in the common k3-j721e-main.dtsi
> file by default, and disabled in the existing J721E board dts
> file. These nodes need pinctrl lines, and so should be enabled
> only on boards where they are actually wired and pinned out for
> ICSSG Ethernet. Any new board dts file should disable these if
> they are not sure.
> 
> Signed-off-by: Suman Anna <s-anna at ti.com>
> ---
>   .../dts/ti/k3-j721e-common-proc-board.dts     |  8 ++++++++
>   arch/arm64/boot/dts/ti/k3-j721e-main.dtsi     | 20 +++++++++++++++++++
>   2 files changed, 28 insertions(+)
> 

Reviewed-by: Grygorii Strashko <grygorii.strashko at ti.com>

-- 
Best regards,
grygorii



More information about the linux-arm-kernel mailing list