linux-kernel - [RESEND PATCHv5 5/5] arm: dts: Add Altera L2 Cache and OCRAM EDAC

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Message-ID: <546BB27A.20405@opensource.altera.com>
Date:	Tue, 18 Nov 2014 14:56:26 -0600
From:	Thor Thayer <tthayer@...nsource.altera.com>
To:	<bp@...en8.de>, <dougthompson@...ssion.com>,
	<m.chehab@...sung.com>, <robh+dt@...nel.org>, <pawel.moll@....com>,
	<mark.rutland@....com>, <ijc+devicetree@...lion.org.uk>,
	<galak@...eaurora.org>, <linux@....linux.org.uk>,
	<dinguyen@...nsource.altera.com>, <grant.likely@...aro.org>
CC:	<devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
	<linux-edac@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <tthayer.linux@...il.com>
Subject: [RESEND PATCHv5 5/5] arm: dts: Add Altera L2 Cache and OCRAM EDAC

Hi all,

On 11/11/2014 06:14 PM, tthayer@...nsource.altera.com wrote:
> From: Thor Thayer<tthayer@...nsource.altera.com>
>
> Adding the device tree entries and bindings needed to support
> the Altera L2 cache and On-Chip RAM EDAC. This patch relies upon
> an earlier patch to declare and setup On-chip RAM properly.
> http://www.spinics.net/lists/devicetree/msg51117.html

Any comments on these devicetree additions?

Thanks,
Thor
> Signed-off-by: Thor Thayer<tthayer@...nsource.altera.com>
> ---
> v2: Remove OCRAM declaration and reference prior patch.
>
> v3-5: No Change
> ---
>   .../bindings/arm/altera/socfpga-l2-edac.txt        |   15 +++++++++++++++
>   .../bindings/arm/altera/socfpga-ocram-edac.txt     |   16 ++++++++++++++++
>   arch/arm/boot/dts/socfpga.dtsi                     |   15 ++++++++++++++-
>   3 files changed, 45 insertions(+), 1 deletion(-)
>   create mode 100644 Documentation/devicetree/bindings/arm/altera/socfpga-l2-edac.txt
>   create mode 100644 Documentation/devicetree/bindings/arm/altera/socfpga-ocram-edac.txt
>
> diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-l2-edac.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-l2-edac.txt
> new file mode 100644
> index 0000000..35b19e3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/altera/socfpga-l2-edac.txt
> @@ -0,0 +1,15 @@
> +Altera SoCFPGA L2 cache Error Detection and Correction [EDAC]
> +
> +Required Properties:
> +- compatible : Should be "altr,l2-edac"
> +- reg : Address and size for ECC error interrupt clear registers.
> +- interrupts : Should be single bit error interrupt, then double bit error
> +	interrupt. Note the rising edge type.
> +
> +Example:
> +
> +	l2edac@...08140 {
> +		compatible = "altr,l2-edac";
> +		reg = <0xffd08140 0x4>;
> +		interrupts = <0 36 1>, <0 37 1>;
> +	};
> diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-ocram-edac.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-ocram-edac.txt
> new file mode 100644
> index 0000000..31ab205
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/altera/socfpga-ocram-edac.txt
> @@ -0,0 +1,16 @@
> +Altera SoCFPGA On-Chip RAM Error Detection and Correction [EDAC]
> +
> +OCRAM ECC Required Properties:
> +- compatible : Should be "altr,ocram-edac"
> +- reg : Address and size for ECC error interrupt clear registers.
> +- iram : phandle to On-Chip RAM definition.
> +- interrupts : Should be single bit error interrupt, then double bit error
> +	interrupt. Note the rising edge type.
> +
> +Example:
> +	ocramedac@...08144 {
> +		compatible = "altr,ocram-edac";
> +		reg = <0xffd08144 0x4>;
> +		iram = <&ocram>;
> +		interrupts = <0 178 1>, <0 179 1>;
> +	};
> diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
> index 6af96ed..32c63a3 100644
> --- a/arch/arm/boot/dts/socfpga.dtsi
> +++ b/arch/arm/boot/dts/socfpga.dtsi
> @@ -618,8 +618,21 @@
>   			interrupts = <0 39 4>;
>   		};
>   
> +		l2edac@...08140 {
> +			compatible = "altr,l2-edac";
> +			reg = <0xffd08140 0x4>;
> +			interrupts = <0 36 1>, <0 37 1>;
> +		};
> +
> +		ocramedac@...08144 {
> +			compatible = "altr,ocram-edac";
> +			reg = <0xffd08144 0x4>;
> +			iram = <&ocram>;
> +			interrupts = <0 178 1>, <0 179 1>;
> +		};
> +
>   		L2: l2-cache@...ef000 {
> -			compatible = "arm,pl310-cache";
> +			compatible = "arm,pl310-cache", "syscon";
>   			reg = <0xfffef000 0x1000>;
>   			interrupts = <0 38 0x04>;
>   			cache-unified;

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