lkml.org 
[lkml]   [2022]   [Jan]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH V1 Create empty OF root 0/1] XRT Alveo driver infrastructure overview
From
Date
Hi Rob,


We are still waiting for your feedback and guidance on this. Could you
take a look?


Thanks,

Lizhi

On 1/25/22 9:48 PM, Lizhi Hou wrote:
> Hello,
>
> Xilinx Alveo PCIe accelerator cards use flattened device tree to describe
> HW subsystems or endpoints. Each device tree node represents a hardware
> endpoint and each endpoint is an hardware unit which requires a driver.
> The product detail:
> https://www.xilinx.com/products/boards-and-kits/alveo.html
>
> The feedback from the previous patches was to create a base tree if there
> is not one and apply the unflattened device nodes by existing Linux
> platform device and OF infrastructure. Please refer to previous discussion
> with device tree and fpga maintainers.
> https://lore.kernel.org/lkml/CAL_JsqJfyRymB=VxLuQqLpep+Q1Eie48dobv9sC5OizDz0d2DQ@mail.gmail.com/
> https://lore.kernel.org/lkml/20220105225013.1567871-1-lizhi.hou@xilinx.com/
>
> This patch adds OF_EMPTY_ROOT config. When it is selected and there is not
> a device tree, create an empty device tree root node.
>
> Lizhi Hou (1):
> of: create empty of root
>
> drivers/of/Kconfig | 3 +++
> drivers/of/Makefile | 1 +
> drivers/of/of_empty_root.c | 51 ++++++++++++++++++++++++++++++++++++++
> 3 files changed, 55 insertions(+)
> create mode 100644 drivers/of/of_empty_root.c
>

\
 
 \ /
  Last update: 2022-02-01 01:51    [W:0.081 / U:0.600 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site