Re: [PATCH v2 1/2] arm64: dts: ti: k3-j721e-evm: Add overlay for PCIE0 Endpoint Mode

From: Siddharth Vadapalli
Date: Mon Dec 11 2023 - 06:17:12 EST


Hello Andrew,

On 05/12/23 21:43, Andrew Davis wrote:
> On 11/15/23 2:52 AM, Siddharth Vadapalli wrote:
>> Add overlay to enable the PCIE0 instance of PCIe on J721E-EVM in
>> Endpoint mode of operation.
>>
>> Signed-off-by: Siddharth Vadapalli <s-vadapalli@xxxxxx>
>> ---
>>   arch/arm64/boot/dts/ti/Makefile               |  3 ++
>>   .../boot/dts/ti/k3-j721e-evm-pcie0-ep.dtso    | 53 +++++++++++++++++++
>>   2 files changed, 56 insertions(+)
>>   create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-evm-pcie0-ep.dtso
>>
>> diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
>> index 77a347f9f47d..5620db44d4dc 100644
>> --- a/arch/arm64/boot/dts/ti/Makefile
>> +++ b/arch/arm64/boot/dts/ti/Makefile
>> @@ -66,6 +66,8 @@ dtb-$(CONFIG_ARCH_K3) += k3-j7200-evm.dtb
>>   k3-j721e-evm-dtbs := k3-j721e-common-proc-board.dtb
>> k3-j721e-evm-quad-port-eth-exp.dtbo
>>   dtb-$(CONFIG_ARCH_K3) += k3-j721e-beagleboneai64.dtb
>>   dtb-$(CONFIG_ARCH_K3) += k3-j721e-evm.dtb
>> +k3-j721e-evm-pcie0-ep-dtbs := k3-j721e-evm.dtb k3-j721e-evm-pcie0-ep.dtbo
>> +dtb-$(CONFIG_ARCH_K3) += k3-j721e-evm-pcie0-ep.dtb
>
> Do you really need to produce this pre-combined DTB file? If you would rather
> just the overlay produced which could be applied at load-time (I prefer this),
> then you should do as Jai has done[0]. Add just the overlay, and test its
> application using a dummy target.

Thank you for pointing it out. I will implement your suggestion and post the v3
series.

--
Regards,
Siddharth.