On 20/11/23 12:01 pm, Siddharth Vadapalli wrote:
> Enable interrupt mode of operation of the DP83867 Ethernet PHY which is
> used by ICSSG2. The DP83867 PHY driver already supports interrupt handling
> for interrupts generated by the PHY. Thus, add the necessary device-tree
> support to enable it.
>
> Since the GPIO1_87 line is muxed with EXT_REFCLK1 and SYNC1_OUT, update
> the pinmux to select GPIO1_87 for routing the interrupt.
>
> Signed-off-by: Siddharth Vadapalli <s-vadapalli@xxxxxx>
Reviewed-by: MD Danish Anwar <danishanwar@xxxxxx>
> ---
>
> This patch is based on linux-next tagged next-20231120.
>
> Regards,
> Siddharth.
>
> arch/arm64/boot/dts/ti/k3-am654-icssg2.dtso | 17 +++++++++++++++--
> 1 file changed, 15 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am654-icssg2.dtso b/arch/arm64/boot/dts/ti/k3-am654-icssg2.dtso
> index ec8cf20ca3ac..9f723592d0f4 100644
> --- a/arch/arm64/boot/dts/ti/k3-am654-icssg2.dtso
> +++ b/arch/arm64/boot/dts/ti/k3-am654-icssg2.dtso
> @@ -124,21 +124,34 @@ AM65X_IOPAD(0x0088, PIN_INPUT, 2) /* (AG17) PRG2_PRU0_GPO4.PRG2_RGMII1_RX_CTL */
> };
> };
>
> +&main_pmx1 {
> + /* Select GPIO1_87 for ICSSG2 PHY interrupt */
> + icssg2_phy_irq_pins_default: icssg2-phy-irq-default-pins {
> + pinctrl-single,pins = <
> + AM65X_IOPAD(0x0014, PIN_INPUT, 7) /* (A22) EXT_REFCLK1.GPIO1_87 */
> + >;
> + };
> +};
> +
> &icssg2_mdio {
> status = "okay";
> - pinctrl-names = "default";
> - pinctrl-0 = <&icssg2_mdio_pins_default>;
> + pinctrl-names = "default", "icssg2-phy-irq";
> + pinctrl-0 = <&icssg2_mdio_pins_default>, <&icssg2_phy_irq_pins_default>;
> #address-cells = <1>;
> #size-cells = <0>;
>
> icssg2_phy0: ethernet-phy@0 {
> reg = <0>;
> + interrupt-parent = <&main_gpio1>;
> + interrupts = <87 0x2>;
> ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
> ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
> };
>
> icssg2_phy1: ethernet-phy@3 {
> reg = <3>;
> + interrupt-parent = <&main_gpio1>;
> + interrupts = <87 0x2>;
> ti,rx-internal-delay = <DP83867_RGMIIDCTL_2_00_NS>;
> ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
> };
--
Thanks and Regards,
Danish
