linux-kernel - Re: [PATCH v4 3/3] riscv: dts: starfive: Add QSPI controller node for StarFive JH7110 SoC

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Message-ID: <018b8bd3-ede0-d6ad-d50e-b4c959ac1660@starfivetech.com>
Date:   Tue, 18 Jul 2023 14:12:40 +0800
From:   William Qiu <william.qiu@...rfivetech.com>
To:     <devicetree@...r.kernel.org>, <linux-spi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-riscv@...ts.infradead.org>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Emil Renner Berthing" <kernel@...il.dk>,
        Ziv Xu <ziv.xu@...rfivetech.com>
Subject: Re: [PATCH v4 3/3] riscv: dts: starfive: Add QSPI controller node for
 StarFive JH7110 SoC



On 2023/7/18 1:13, Aurelien Jarno wrote:
> Hi,
> 
> On 2023-07-04 17:04, William Qiu wrote:
>> Add the quad spi controller node for the StarFive JH7110 SoC.
>> 
>> Co-developed-by: Ziv Xu <ziv.xu@...rfivetech.com>
>> Signed-off-by: Ziv Xu <ziv.xu@...rfivetech.com>
>> Signed-off-by: William Qiu <william.qiu@...rfivetech.com>
>> Reviewed-by: Hal Feng <hal.feng@...rfivetech.com>
>> ---
>>  .../jh7110-starfive-visionfive-2.dtsi         | 32 +++++++++++++++++++
>>  arch/riscv/boot/dts/starfive/jh7110.dtsi      | 18 +++++++++++
>>  2 files changed, 50 insertions(+)
>> 
>> diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
>> index 2a6d81609284..983b683e2f27 100644
>> --- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
>> +++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
>> @@ -126,6 +126,38 @@ &i2c6 {
>>  	status = "okay";
>>  };
>>  
>> +&qspi {
>> +	#address-cells = <1>;
>> +	#size-cells = <0>;
>> +
>> +	nor_flash: flash@0 {
>> +		compatible = "jedec,spi-nor";
>> +		reg = <0>;
>> +		cdns,read-delay = <5>;
>> +		spi-max-frequency = <12000000>;
>> +		cdns,tshsl-ns = <1>;
>> +		cdns,tsd2d-ns = <1>;
>> +		cdns,tchsh-ns = <1>;
>> +		cdns,tslch-ns = <1>;
>> +
>> +		partitions {
>> +			compatible = "fixed-partitions";
>> +			#address-cells = <1>;
>> +			#size-cells = <1>;
>> +
>> +			spl@0 {
>> +				reg = <0x0 0x20000>;
>> +			};
>> +			uboot@...000 {
>> +				reg = <0x100000 0x300000>;
>> +			};
>> +			data@...000 {
>> +				reg = <0xf00000 0x100000>;
>> +			};
> 
> It appears that this uses the old layout for the SPI flash. The new
> layout is described there:
> 
> https://doc-en.rvspace.org/VisionFive2/Boot_UG/JH7110_SDK/boot_address_allocation.html
> 
> Regards
> Aurelien
> 
I'll take a look, and use it then.
Thanks for your comments.

Best regards,
William