[PATCH] arm64: dts: ti: k3-j784s4: Add initial PCIe/SerDes support for J784S4

Andrew Davis afd at ti.com
Fri May 19 10:46:14 PDT 2023


On 5/15/23 2:02 AM, Achal Verma wrote:
> From: Matt Ranostay <mranostay at ti.com>
> 
> J784S4 SoC supports two PCIE instances as follows:
> * PCIE0 - 4x lanes
> * PCIE1 - 4x lanes
> 
> J784S4 EVM board has the following PCIE connectors:
> * PCIE0 - 4x lanes
> * PCIE1 - 2x lanes
> 
> Signed-off-by: Matt Ranostay <mranostay at ti.com>
> Signed-off-by: Siddharth Vadapalli <s-vadapalli at ti.com>
> Signed-off-by: Achal Verma <a-verma1 at ti.com>
> ---
> 
> This patch depends on:
> https://lore.kernel.org/all/20230310111630.743023-1-s-vadapalli@ti.com/
> https://lore.kernel.org/all/20230425131607.290707-1-j-choudhary@ti.com/
> https://lore.kernel.org/all/20230401112633.2406604-1-a-verma1@ti.com/
> 
>   arch/arm64/boot/dts/ti/k3-j784s4-evm.dts   |  65 +++++++++++
>   arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi | 126 +++++++++++++++++++++


I would split this into two patches, first add the nodes to the MAIN domain
dtsi file. Then after enable the SerDes and PCIe nodes for the EVM board.

Also, drop the pcie0_ep nodes, reasoning here:

https://lore.kernel.org/lkml/20230515172137.474626-2-afd@ti.com/

Andrew



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