diff mbox

[v4,4/7] dt: mdio-mux: Add mdio multiplexer driver node

Message ID 1465216900-11755-5-git-send-email-pramod.kumar@broadcom.com (mailing list archive)
State New, archived
Headers show

Commit Message

Pramod Kumar June 6, 2016, 12:41 p.m. UTC
Add integrated MDIO multiplexer driver node which contains
two mux PCIe bus and one ethernet bus along with phys
lying on these bus.

Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com>
---
 arch/arm64/boot/dts/broadcom/ns2-svk.dts | 12 ++++++++++++
 arch/arm64/boot/dts/broadcom/ns2.dtsi    | 31 +++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

Comments

Florian Fainelli June 6, 2016, 6:37 p.m. UTC | #1
On 06/06/2016 05:41 AM, Pramod Kumar wrote:
> Add integrated MDIO multiplexer driver node which contains
> two mux PCIe bus and one ethernet bus along with phys
> lying on these bus.
> 
> Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com>
> ---
> +		mdio_mux_iproc: mdio-mux@6602023c {
> +			compatible = "brcm,mdio-mux-iproc";
> +			reg = <0x6602023c 0x14>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			mdio@0 {
> +				reg = <0x0>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				pci_phy0: pci-phy@0 {
> +					compatible = "brcm,ns2-pcie-phy";
> +					reg = <0x0>;
> +					#phy-cells = <0>;
> +				};
> +			};
> +
> +			mdio@7 {
> +				reg = <0x7>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				pci_phy1: pci-phy@0 {
> +					compatible = "brcm,ns2-pcie-phy";
> +					reg = <0x0>;
> +					#phy-cells = <0>;
> +				};

Are these two PHYs always available in the NS2 SoC, or does that depend
on interfaces exposed at the board level? Should not they be flagged
with a disabled status property by default and enabled in their
respective board files?
Pramod Kumar June 10, 2016, 4:24 a.m. UTC | #2
Hi Florian,

> -----Original Message-----
> From: Florian Fainelli [mailto:f.fainelli@gmail.com]
> Sent: 07 June 2016 00:08
> To: Pramod Kumar; Rob Herring; Pawel Moll; Mark Rutland; Ian Campbell;
> Kumar Gala; Catalin Marinas; Will Deacon; Kishon Vijay Abraham I; David S.
> Miller
> Cc: devicetree@vger.kernel.org; netdev@vger.kernel.org; linux-
> kernel@vger.kernel.org; bcm-kernel-feedback-list@broadcom.com; linux-arm-
> kernel@lists.infradead.org
> Subject: Re: [PATCH v4 4/7] dt: mdio-mux: Add mdio multiplexer driver node
>
> On 06/06/2016 05:41 AM, Pramod Kumar wrote:
> > Add integrated MDIO multiplexer driver node which contains two mux
> > PCIe bus and one ethernet bus along with phys lying on these bus.
> >
> > Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com>
> > ---
> > +		mdio_mux_iproc: mdio-mux@6602023c {
> > +			compatible = "brcm,mdio-mux-iproc";
> > +			reg = <0x6602023c 0x14>;
> > +			#address-cells = <1>;
> > +			#size-cells = <0>;
> > +
> > +			mdio@0 {
> > +				reg = <0x0>;
> > +				#address-cells = <1>;
> > +				#size-cells = <0>;
> > +
> > +				pci_phy0: pci-phy@0 {
> > +					compatible = "brcm,ns2-pcie-phy";
> > +					reg = <0x0>;
> > +					#phy-cells = <0>;
> > +				};
> > +			};
> > +
> > +			mdio@7 {
> > +				reg = <0x7>;
> > +				#address-cells = <1>;
> > +				#size-cells = <0>;
> > +
> > +				pci_phy1: pci-phy@0 {
> > +					compatible = "brcm,ns2-pcie-phy";
> > +					reg = <0x0>;
> > +					#phy-cells = <0>;
> > +				};
>
> Are these two PHYs always available in the NS2 SoC, or does that depend on
> interfaces exposed at the board level? Should not they be flagged with a
> disabled status property by default and enabled in their respective board
> files?
> --

It depends on the interfaces exposed at board level. We will disable it in
dtsi and enable it dts file. I'll address this through next patch set.

> Florian

Regards,
Pramod
diff mbox

Patch

diff --git a/arch/arm64/boot/dts/broadcom/ns2-svk.dts b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
index 54ca40c..71f8503 100644
--- a/arch/arm64/boot/dts/broadcom/ns2-svk.dts
+++ b/arch/arm64/boot/dts/broadcom/ns2-svk.dts
@@ -132,3 +132,15 @@ 
 		#size-cells = <1>;
 	};
 };
+
+&mdio_mux_iproc {
+	mdio@10 {
+		reg = <0x10>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		gphy0: eth-phy@10 {
+			reg = <0x10>;
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/broadcom/ns2.dtsi b/arch/arm64/boot/dts/broadcom/ns2.dtsi
index ec68ec1..9f20a66 100644
--- a/arch/arm64/boot/dts/broadcom/ns2.dtsi
+++ b/arch/arm64/boot/dts/broadcom/ns2.dtsi
@@ -263,6 +263,37 @@ 
 				      IRQ_TYPE_LEVEL_HIGH)>;
 		};
 
+		mdio_mux_iproc: mdio-mux@6602023c {
+			compatible = "brcm,mdio-mux-iproc";
+			reg = <0x6602023c 0x14>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			mdio@0 {
+				reg = <0x0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				pci_phy0: pci-phy@0 {
+					compatible = "brcm,ns2-pcie-phy";
+					reg = <0x0>;
+					#phy-cells = <0>;
+				};
+			};
+
+			mdio@7 {
+				reg = <0x7>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				pci_phy1: pci-phy@0 {
+					compatible = "brcm,ns2-pcie-phy";
+					reg = <0x0>;
+					#phy-cells = <0>;
+				};
+			};
+		};
+
 		timer0: timer@66030000 {
 			compatible = "arm,sp804", "arm,primecell";
 			reg = <0x66030000 0x1000>;