linux-kernel - RE: [v5 2/2] arm64: dts: lx2160a: add sata node support

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Message-ID: <VI1PR04MB44315EBEB2BD414FEF6B3547ED670@VI1PR04MB4431.eurprd04.prod.outlook.com>
Date:   Thu, 14 Feb 2019 09:18:45 +0000
From:   Peng Ma <peng.ma@....com>
To:     Mian Yousaf Kaukab <ykaukab@...e.de>
CC:     "axboe@...nel.dk" <axboe@...nel.dk>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        Leo Li <leoyang.li@....com>,
        "linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Andy Tang <andy.tang@....com>
Subject: RE: [v5 2/2] arm64: dts: lx2160a: add sata node support



>-----Original Message-----
>From: Mian Yousaf Kaukab <ykaukab@...e.de>
>Sent: 2019年2月13日 3:01
>To: Peng Ma <peng.ma@....com>
>Cc: axboe@...nel.dk; shawnguo@...nel.org; robh+dt@...nel.org;
>mark.rutland@....com; Leo Li <leoyang.li@....com>;
>linux-ide@...r.kernel.org; devicetree@...r.kernel.org;
>linux-kernel@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; Andy Tang
><andy.tang@....com>
>Subject: Re: [v5 2/2] arm64: dts: lx2160a: add sata node support
>
>On Fri, Jan 25, 2019 at 08:10:13AM +0000, Peng Ma wrote:
>> Add SATA device nodes for fsl-lx2160a and enable support for QDS and
>> RDB boards.
>>
>> Signed-off-by: Peng Ma <peng.ma@....com>
>> ---
>> changed for V5:
>> 	- no change
>>
>>  arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts |   16 +++++++
>>  arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts |   16 +++++++
>>  arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi    |   44
>+++++++++++++++++++++
>>  3 files changed, 76 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
>> b/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
>> index 99a22ab..1a5acf6 100644
>> --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
>> +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-qds.dts
>> @@ -95,6 +95,22 @@
>>  	};
>>  };
>>
>> +&sata0 {
>> +	status = "okay";
>> +};
>> +
>> +&sata1 {
>> +	status = "okay";
>> +};
>> +
>> +&sata2 {
>> +	status = "okay";
>> +};
>> +
>> +&sata3 {
>> +	status = "okay";
>> +};
>> +
>>  &uart0 {
>>  	status = "okay";
>>  };
>> diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
>> b/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
>> index 6481e5f..5b6799e 100644
>> --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
>> +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
>> @@ -102,6 +102,22 @@
>>  	};
>>  };
>>
>> +&sata0 {
>> +	status = "okay";
>> +};
>> +
>> +&sata1 {
>> +	status = "okay";
>> +};
>> +
>> +&sata2 {
>> +	status = "okay";
>> +};
>> +
>> +&sata3 {
>> +	status = "okay";
>> +};
>> +
>>  &uart0 {
>>  	status = "okay";
>>  };
>> diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
>> b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
>> index a79f5c1..592034b 100644
>> --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
>> +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi
>> @@ -671,6 +671,50 @@
>>  			status = "disabled";
>>  		};
>>
>> +		sata0: sata@...0000 {
>> +			compatible = "fsl,lx2160a-ahci";
>> +			reg = <0x0 0x3200000 0x0 0x10000>,
>> +			      <0x7 0x100520 0x0 0x4>;
>> +			reg-names = "ahci", "sata-ecc";
>> +			interrupts = <GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>;
>> +			clocks = <&clockgen 4 3>;
>> +			dma-coherent;
>> +			status = "disabled";
>> +		};
>> +
>> +		sata1: sata@...0000 {
>> +			compatible = "fsl,lx2160a-ahci";
>> +			reg = <0x0 0x3210000 0x0 0x10000>,
>> +			      <0x7 0x100520 0x0 0x4>;
>> +			reg-names = "ahci", "sata-ecc";
>> +			interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>;
>> +			clocks = <&clockgen 4 3>;
>> +			dma-coherent;
>> +			status = "disabled";
>> +		};
>> +
>> +		sata2: sata@...0000 {
>> +			compatible = "fsl,lx2160a-ahci";
>> +			reg = <0x0 0x3220000 0x0 0x10000>,
>> +			      <0x7 0x100520 0x0 0x4>;
>> +			reg-names = "ahci", "sata-ecc";
>> +			interrupts = <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
>> +			clocks = <&clockgen 4 3>;
>> +			dma-coherent;
>> +			status = "disabled";
>> +		};
>> +
>> +		sata3: sata@...0000 {
>> +			compatible = "fsl,lx2160a-ahci";
>> +			reg = <0x0 0x3230000 0x0 0x10000>,
>> +			      <0x7 0x100520 0x0 0x4>;
>You are using same reg values for sata-ecc in all sata instances. Does this
>actually work? No errors when the ahci_qoriq driver do ioremap on it while
>probing second instance and onward?
>
 Thanks for you point out the problem. I will fixed it with two or more sata enable.
>fsl-ls208xa.dtsi is the only other file here with multiple sata instances and it
>doesn’t care about sata-ecc.
>
The ls208xa platforms is not necessary to set sata-ecc addr.
BR,
Peng
>> +			reg-names = "ahci", "sata-ecc";
>> +			interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
>> +			clocks = <&clockgen 4 3>;
>> +			dma-coherent;
>> +			status = "disabled";
>> +		};
>> +
>>  		smmu: iommu@...0000 {
>>  			compatible = "arm,mmu-500";
>>  			reg = <0 0x5000000 0 0x800000>;
>
>BR,
>Yousaf