linux-kernel - Re: [PATCH] ARM: keystone: dts: add PCI serdes driver bindings

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Date:	Fri, 16 Oct 2015 10:55:55 +0300
From:	Roger Quadros <rogerq@...com>
To:	WingMan Kwok <w-kwok2@...com>, <robh+dt@...nel.org>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<kishon@...com>, <m-karicheri2@...com>, <bhelgaas@...gle.com>,
	<ssantosh@...nel.org>, <linux@....linux.org.uk>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-pci@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: keystone: dts: add PCI serdes driver bindings

WingMan,

On 15/10/15 17:27, WingMan Kwok wrote:
> This patch adds the required PCI serdes bindings whcih can then be
> enabled by setting the corresponding statuses to "ok" in order to
> configure and start the PCI serdes.
> 
> This patch depends on the updates to the Keystone PCIe host driver
> and common serdes driver patch series that is submitted separately.
> 
> Signed-off-by: WingMan Kwok <w-kwok2@...com>
> ---
>  arch/arm/boot/dts/k2e.dtsi      |   21 +++++++++++++++++++++
>  arch/arm/boot/dts/keystone.dtsi |   21 +++++++++++++++++++++
>  2 files changed, 42 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/k2e.dtsi b/arch/arm/boot/dts/k2e.dtsi
> index 675fb8e..3b36575 100644
> --- a/arch/arm/boot/dts/k2e.dtsi
> +++ b/arch/arm/boot/dts/k2e.dtsi
> @@ -86,6 +86,16 @@
>  			gpio,syscon-dev = <&devctrl 0x240>;
>  		};
>  
> +		pcie1_phy: pciephy@...6000 {

Should be
		pcie1_phy: phy@...6000 {

> +			#phy-cells = <0>;
> +			compatible = "ti,keystone-serdes-pcie";
> +			reg = <0x02326000 0x4000>;
> +			reg-names = "serdes";
> +			link-rate-kbps = <5000000>;
> +			num-lanes = <2>;
> +			status = "disabled";
> +		};
> +
>  		pcie1: pcie@...20000 {
>  			compatible = "ti,keystone-pcie","snps,dw-pcie";
>  			clocks = <&clkpcie1>;
> @@ -130,6 +140,17 @@
>  					<GIC_SPI 375 IRQ_TYPE_EDGE_RISING>,
>  					<GIC_SPI 376 IRQ_TYPE_EDGE_RISING>;
>  			};
> +
> +			/* PCIE phy */
> +			serdeses {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				serdes@0 {
> +					reg = <0>;
> +					phys = <&pcie1_phy>;
> +				};
> +			};
> +
>  		};
>  
>  		mdio: mdio@...00f00 {
> diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi
> index 72816d6..6566cc4 100644
> --- a/arch/arm/boot/dts/keystone.dtsi
> +++ b/arch/arm/boot/dts/keystone.dtsi
> @@ -275,6 +275,16 @@
>  			ti,syscon-dev = <&devctrl 0x2a0>;
>  		};
>  
> +		pcie0_phy: pciephy@...0000 {

ditto.

> +			#phy-cells = <0>;
> +			compatible = "ti,keystone-serdes-pcie";
> +			reg = <0x02320000 0x4000>;
> +			reg-names = "serdes";
> +			link-rate-kbps = <5000000>;
> +			num-lanes = <2>;
> +			status = "disabled";
> +		};
> +
>  		pcie0: pcie@...00000 {
>  			compatible = "ti,keystone-pcie", "snps,dw-pcie";
>  			clocks = <&clkpcie>;
> @@ -319,6 +329,17 @@
>  					<GIC_SPI 28 IRQ_TYPE_EDGE_RISING>,
>  					<GIC_SPI 29 IRQ_TYPE_EDGE_RISING>;
>  			};
> +
> +			/* PCIE phy */
> +			serdeses {
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				serdes@0 {
> +					reg = <0>;
> +					phys = <&pcie0_phy>;
> +				};
> +			};
> +
>  		};
>  	};
>  };
> 

--
cheers,
-roger
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