diff mbox series

[RFC,1/2] arm64: dts: ti: k3-j721s2-main: Add main CPSW2G devicetree node

Message ID 20230426105718.118806-2-s-vadapalli@ti.com (mailing list archive)
State New, archived
Headers show
Series Add MAIN CPSW2G DT support for J721S2 | expand

Commit Message

Siddharth Vadapalli April 26, 2023, 10:57 a.m. UTC
From: Kishon Vijay Abraham I <kishon@ti.com>

TI's J721S2 SoC has a MAIN CPSW2G instance of the CPSW Ethernet Switch.
Add devicetree node for it.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
---
 arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)

Comments

Nishanth Menon April 26, 2023, 12:59 p.m. UTC | #1
On 16:27-20230426, Siddharth Vadapalli wrote:
> From: Kishon Vijay Abraham I <kishon@ti.com>
> 
> TI's J721S2 SoC has a MAIN CPSW2G instance of the CPSW Ethernet Switch.
> Add devicetree node for it.
> 
> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
> Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
> ---
>  arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 69 ++++++++++++++++++++++
>  1 file changed, 69 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> index 6629b2989180..14dfef7b0758 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> @@ -51,6 +51,12 @@ usb_serdes_mux: mux-controller@0 {
>  			mux-reg-masks = <0x0 0x8000000>; /* USB0 to SERDES0 lane 1/3 mux */
>  		};
>  
> +		phy_gmii_sel_cpsw: phy@34 {
> +			compatible = "ti,am654-phy-gmii-sel";
> +			reg = <0x34 0x4>;
> +			#phy-cells = <1>;
> +		};


See this thread: https://lore.kernel.org/all/76da0b98-3274-b047-db11-ecabc117ae11@ti.com/

[...]
Andrew Davis April 26, 2023, 1:21 p.m. UTC | #2
On 4/26/23 7:59 AM, Nishanth Menon wrote:
> On 16:27-20230426, Siddharth Vadapalli wrote:
>> From: Kishon Vijay Abraham I <kishon@ti.com>
>>
>> TI's J721S2 SoC has a MAIN CPSW2G instance of the CPSW Ethernet Switch.
>> Add devicetree node for it.
>>
>> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
>> Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
>> ---
>>   arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 69 ++++++++++++++++++++++
>>   1 file changed, 69 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> index 6629b2989180..14dfef7b0758 100644
>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> @@ -51,6 +51,12 @@ usb_serdes_mux: mux-controller@0 {
>>   			mux-reg-masks = <0x0 0x8000000>; /* USB0 to SERDES0 lane 1/3 mux */
>>   		};
>>   
>> +		phy_gmii_sel_cpsw: phy@34 {
>> +			compatible = "ti,am654-phy-gmii-sel";
>> +			reg = <0x34 0x4>;
>> +			#phy-cells = <1>;
>> +		};
> 
> 
> See this thread: https://lore.kernel.org/all/76da0b98-3274-b047-db11-ecabc117ae11@ti.com/
> 

"ti,am654-phy-gmii-sel" already has "reg", so this DT is good as is.
Adding the driver fallback to use that when the parent is not a "syscon"
node should be as easy as this:

--- a/drivers/phy/ti/phy-gmii-sel.c
+++ b/drivers/phy/ti/phy-gmii-sel.c
@@ -435,9 +435,12 @@ static int phy_gmii_sel_probe(struct platform_device *pdev)
  
         priv->regmap = syscon_node_to_regmap(node->parent);
         if (IS_ERR(priv->regmap)) {
-               ret = PTR_ERR(priv->regmap);
-               dev_err(dev, "Failed to get syscon %d\n", ret);
-               return ret;
+               priv->regmap = device_node_to_regmap(node);
+               if (IS_ERR(priv->regmap)) {
+                       ret = PTR_ERR(priv->regmap);
+                       dev_err(dev, "Failed to get syscon %d\n", ret);
+                       return ret;
+               }
         }


I'll send this patch when the window opens.

Andrew
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index 6629b2989180..14dfef7b0758 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -51,6 +51,12 @@  usb_serdes_mux: mux-controller@0 {
 			mux-reg-masks = <0x0 0x8000000>; /* USB0 to SERDES0 lane 1/3 mux */
 		};
 
+		phy_gmii_sel_cpsw: phy@34 {
+			compatible = "ti,am654-phy-gmii-sel";
+			reg = <0x34 0x4>;
+			#phy-cells = <1>;
+		};
+
 		serdes_ln_ctrl: mux-controller@80 {
 			compatible = "mmio-mux";
 			reg = <0x80 0x10>;
@@ -779,6 +785,69 @@  cpts@310d0000 {
 		};
 	};
 
+	main_cpsw: ethernet@c200000 {
+		compatible = "ti,j721e-cpsw-nuss";
+		reg = <0x00 0xc200000 0x00 0x200000>;
+		reg-names = "cpsw_nuss";
+		ranges = <0x0 0x0 0x0 0xc200000 0x0 0x200000>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		dma-coherent;
+		clocks = <&k3_clks 28 28>;
+		clock-names = "fck";
+		power-domains = <&k3_pds 28 TI_SCI_PD_EXCLUSIVE>;
+
+		dmas = <&main_udmap 0xc640>,
+		       <&main_udmap 0xc641>,
+		       <&main_udmap 0xc642>,
+		       <&main_udmap 0xc643>,
+		       <&main_udmap 0xc644>,
+		       <&main_udmap 0xc645>,
+		       <&main_udmap 0xc646>,
+		       <&main_udmap 0xc647>,
+		       <&main_udmap 0x4640>;
+		dma-names = "tx0", "tx1", "tx2", "tx3",
+			    "tx4", "tx5", "tx6", "tx7",
+			    "rx";
+
+		status = "disabled";
+
+		ethernet-ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			main_cpsw_port1: port@1 {
+				reg = <1>;
+				ti,mac-only;
+				label = "port1";
+				phys = <&phy_gmii_sel_cpsw 1>;
+				status = "disabled";
+			};
+		};
+
+		main_cpsw_mdio: mdio@f00 {
+			compatible = "ti,cpsw-mdio","ti,davinci_mdio";
+			reg = <0x00 0xf00 0x00 0x100>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&k3_clks 28 28>;
+			clock-names = "fck";
+			bus_freq = <1000000>;
+			status = "disabled";
+		};
+
+		cpts@3d000 {
+			compatible = "ti,am65-cpts";
+			reg = <0x00 0x3d000 0x00 0x400>;
+			clocks = <&k3_clks 28 3>;
+			clock-names = "cpts";
+			interrupts-extended = <&gic500 GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "cpts";
+			ti,cpts-ext-ts-inputs = <4>;
+			ti,cpts-periodic-outputs = <2>;
+		};
+	};
+
 	usbss0: cdns-usb@4104000 {
 		compatible = "ti,j721e-usb";
 		reg = <0x00 0x04104000 0x00 0x100>;