[PATCH 5/5] arm: dts: add IPQ4019 ESS EDMA U-Boot additions

[Caleb Connolly]

Hi Robert,

Thanks for the patches.

On 22/05/2024 12:13, Robert Marko wrote:
> IPQ4019 ESS EDMA support is not yet in upstream Linux, and even when
> eventually it is merged the node will not be compatible with U-Boot driver
> as the Linux driver properly models the internal switch.

Is this going to cause dtc compile errors when the node eventually does 
land upstream and gets pulled into U-Boot?

How hard would it be to adjust the U-Boot driver to work with the 
upstream bindings?

Kind regards,
> 
> So, lets add the U-Boot additions DTSI for ESS EDMA for now.
> 
> Signed-off-by: Robert Marko <robert.marko at sartura.hr>
> ---
>   arch/arm/dts/qcom-ipq4019-u-boot.dtsi | 27 +++++++++++++++++++++++++++
>   1 file changed, 27 insertions(+)
>   create mode 100644 arch/arm/dts/qcom-ipq4019-u-boot.dtsi
> 
> diff --git a/arch/arm/dts/qcom-ipq4019-u-boot.dtsi b/arch/arm/dts/qcom-ipq4019-u-boot.dtsi
> new file mode 100644
> index 0000000000..f70ef5c9a5
> --- /dev/null
> +++ b/arch/arm/dts/qcom-ipq4019-u-boot.dtsi
> @@ -0,0 +1,27 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
> +/ {
> +	soc {
> +		edma: edma at c080000 {
> +			compatible = "qcom,ess-edma";
> +			reg = <0xc080000 0x8000>, <0x98000 0x800>, <0xc000000 0x80000>;
> +			reg-names = "edma", "psgmii_phy", "switch";
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			resets = <&gcc ESS_PSGMII_ARES>, <&gcc ESS_RESET>;
> +			reset-names = "psgmii", "ess";
> +			clocks = <&gcc GCC_ESS_CLK>;
> +			clock-names = "ess";
> +			status = "disabled";
> +
> +			switch_ports: switch-ports {
> +				phy-mode = "psgmii";
> +			};
> +		};
> +	};
> +};
> +
> +&mdio {
> +	psgmiiphy: psgmii-phy at 5 {
> +		reg = <5>;
> +	};
> +};

-- 
// Caleb (they/them)