From mboxrd@z Thu Jan 1 00:00:00 1970 From: lsun@mellanox.com (Liming Sun) Date: Wed, 31 Oct 2018 14:09:55 -0400 Subject: [PATCH v5 3/5] dt-bindings: soc: Add TmFifo binding for Mellanox BlueField SoC In-Reply-To: <1541009397-76223-1-git-send-email-lsun@mellanox.com> References: <1541009397-76223-1-git-send-email-lsun@mellanox.com> Message-ID: <1541009397-76223-3-git-send-email-lsun@mellanox.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add devicetree bindings for the TmFifo which is found on Mellanox BlueField SoCs. Reviewed-by: Rob Herring Reviewed-by: David Woods Signed-off-by: Liming Sun --- .../devicetree/bindings/soc/mellanox/tmfifo.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mellanox/tmfifo.txt diff --git a/Documentation/devicetree/bindings/soc/mellanox/tmfifo.txt b/Documentation/devicetree/bindings/soc/mellanox/tmfifo.txt new file mode 100644 index 0000000..8a13fa6 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/mellanox/tmfifo.txt @@ -0,0 +1,23 @@ +* Mellanox BlueField SoC TmFifo + +BlueField TmFifo provides a shared FIFO between the target and the +external host machine, which can be accessed by external host via +USB or PCIe. In the current tmfifo driver, this FIFO has been demuxed +to implement virtual console and network interface based on the virtio +framework. + +Required properties: + +- compatible: Should be "mellanox,bf-tmfifo" +- reg: Physical base address and length of Rx/Tx block +- interrupts: The interrupt number of Rx low water mark, Rx high water mark + Tx low water mark, Tx high water mark respectively. + +Example: + +tmfifo at 800a20 { + compatible = "mellanox,bf-tmfifo"; + reg = <0x00800a20 0x00000018 + 0x00800a40 0x00000018>; + interrupts = <41, 42, 43, 44>; +}; -- 1.8.3.1