linux-kernel - Re: [PATCH] arm64: dts: ti: k3-j721s2-common-proc-board: Add QSPI flash partition details

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Message-ID: <9675d81c-12f5-4798-bad9-ecbb2349bb60@ti.com>
Date: Fri, 30 Jan 2026 13:30:54 +0530
From: "Dutta, Anurag" <a-dutta@...com>
To: "Kumar, Udit" <u-kumar1@...com>, <nm@...com>, <vigneshr@...com>,
	<kristo@...nel.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <gehariprasath@...com>
Subject: Re: [PATCH] arm64: dts: ti: k3-j721s2-common-proc-board: Add QSPI
 flash partition details


On 22-01-2026 08:53, Kumar, Udit wrote:
>
> On 1/21/2026 10:48 AM, Anurag Dutta wrote:
>> J721S2 EVM has MT25QU512AB 64 MiB Quad SPI NOR flash connected
>> to OSPI1. Add the partition information as per bootloader.
>>
>> Signed-off-by: Anurag Dutta <a-dutta@...com>
>> ---
>> Test logs: 
>> https://gist.github.com/anuragdutta731/b65f63f22c69317d714b65a201438cbc
>
>
> Thanks for logs, but these are for boot-loader and I don't think 
> u-boot consumes partition details.
>
> could you share logs for kernel as well.
>
Hi Udit
Here are kernel logs : 
https://gist.github.com/anuragdutta731/d4ee38df3ed8889f44bf28ab163b1baf
>
>
>>
>>   .../dts/ti/k3-j721s2-common-proc-board.dts    | 41 +++++++++++++++++++
>>   1 file changed, 41 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts 
>> b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
>> index 4fea99519113..7faf9367dbb2 100644
>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
>> @@ -530,6 +530,47 @@ flash@0 {
>>           cdns,tchsh-ns = <60>;
>>           cdns,tslch-ns = <60>;
>>           cdns,read-delay = <2>;
>> +
>> +        partitions {
>> +            compatible = "fixed-partitions";
>> +            #address-cells = <1>;
>> +            #size-cells = <1>;
>> +
>> +            partition@0 {
>> +                label = "qspi.tiboot3";
>> +                reg = <0x0 0x80000>;
>> +            };
>> +
>> +            partition@...00 {
>> +                label = "qspi.tispl";
>> +                reg = <0x80000 0x200000>;
>> +            };
>> +
>> +            partition@...000 {
>> +                label = "qspi.u-boot";
>> +                reg = <0x280000 0x400000>;
>> +            };
>> +
>> +            partition@...000 {
>> +                label = "qspi.env";
>> +                reg = <0x680000 0x40000>;
>> +            };
>> +
>> +            partition@...000 {
>> +                label = "qspi.env.backup";
>> +                reg = <0x6c0000 0x40000>;
>> +            };
>> +
>> +            partition@...000 {
>> +                label = "qspi.rootfs";
>> +                reg = <0x800000 0x37c0000>;
>> +            };
>> +
>> +            partition@...0000 {
>> +                label = "qspi.phypattern";
>> +                reg = <0x3fc0000 0x40000>;
>> +            };
>> +        };
>>       };
>>   };