[PATCH 5/5] misc: zynqmp: Add afi config driver
Greg KH
gregkh at linuxfoundation.org
Tue Apr 20 09:47:58 BST 2021
On Tue, Apr 20, 2021 at 01:41:53PM +0530, Nava kishore Manne wrote:
> This patch adds zynqmp afi config driver.This is useful for
> the configuration of the PS-PL interface on Zynq US+ MPSoC
> platform.
Again, please spell out what those terms mean, as I have no idea :(
>
> Signed-off-by: Nava kishore Manne <nava.manne at xilinx.com>
> ---
> drivers/misc/Kconfig | 11 ++++++
> drivers/misc/Makefile | 1 +
> drivers/misc/zynqmp-afi.c | 83 +++++++++++++++++++++++++++++++++++++++
> 3 files changed, 95 insertions(+)
> create mode 100644 drivers/misc/zynqmp-afi.c
>
> diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
> index 877b43b3377d..d1ea1eeb3ac1 100644
> --- a/drivers/misc/Kconfig
> +++ b/drivers/misc/Kconfig
> @@ -456,6 +456,17 @@ config ZYNQ_AFI
> between PS and PL, the AXI port data path should be configured
> with the proper Bus-width values
>
> +config ZYNQMP_AFI
> + tristate "Xilinx ZYNQMP AFI support"
> + help
> + ZynqMP AFI driver support for writing to the AFI registers for
> + configuring PS_PL Bus-width. Xilinx Zynq US+ MPSoC connect the
> + PS to the programmable logic (PL) through the AXI port. This AXI
> + port helps to establish the data path between the PS and PL.
> + In-order to establish the proper communication path between
> + PS and PL, the AXI port data path should be configured with
> + the proper Bus-width values
Please use tabs properly, you mix them above, checkpatch should have
caught that.
thanks,
greg k-h
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