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

["Kumar, Udit" <u-kumar1@ti.com>]

On 1/30/2026 1:30 PM, Dutta, Anurag wrote:
>
> 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@ti.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


Thanks Anurag,

I think, you need qspi.phypattern under bootph-all, as I see u-boot 
stage will/may do phy-tuning.

While at this, same thing needs to be cascaded to ospi flash as well.


>>
>>
>>>
>>>   .../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@80000 {
>>> +                label = "qspi.tispl";
>>> +                reg = <0x80000 0x200000>;
>>> +            };
>>> +
>>> +            partition@280000 {
>>> +                label = "qspi.u-boot";
>>> +                reg = <0x280000 0x400000>;
>>> +            };
>>> +
>>> +            partition@680000 {
>>> +                label = "qspi.env";
>>> +                reg = <0x680000 0x40000>;
>>> +            };
>>> +
>>> +            partition@6c0000 {
>>> +                label = "qspi.env.backup";
>>> +                reg = <0x6c0000 0x40000>;
>>> +            };
>>> +
>>> +            partition@800000 {
>>> +                label = "qspi.rootfs";
>>> +                reg = <0x800000 0x37c0000>;
>>> +            };
>>> +
>>> +            partition@3fc0000 {
>>> +                label = "qspi.phypattern";
>>> +                reg = <0x3fc0000 0x40000>;
>>> +            };
>>> +        };
>>>       };
>>>   };