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    Subject[PATCH net-next 2/2] bindings: net: stmmac: Add documentation for TSN parameters
    Date
    This adds the documentation for TSN feature EST and FP.

    Signed-off-by: Jose Abreu <joabreu@synopsys.com>
    Cc: David S. Miller <davem@davemloft.net>
    Cc: Joao Pinto <jpinto@synopsys.com>
    Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
    Cc: Alexandre Torgue <alexandre.torgue@st.com>
    Cc: Rob Herring <robh+dt@kernel.org>
    ---
    Documentation/devicetree/bindings/net/stmmac.txt | 20 ++++++++++++++++++++
    1 file changed, 20 insertions(+)

    diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt
    index c3a7be6..6359df6 100644
    --- a/Documentation/devicetree/bindings/net/stmmac.txt
    +++ b/Documentation/devicetree/bindings/net/stmmac.txt
    @@ -114,6 +114,16 @@ Optional properties:
    - snps,high_credit: max write outstanding req. limit
    - snps,low_credit: max read outstanding req. limit
    - snps,priority: TX queue priority (Range: 0x0 to 0xF)
    +- TSN parameters: below the list of all the parameters to configure TSN
    + features (only applicable for IP version >= 5.00)
    + - snps,est: Enable EST algorithm
    + - If EST enabled provide these parameters:
    + - snps,btr: Array size of 2 with BTR value for EST algorithm
    + - snps,ctr: Array size of 2 with CTR value for EST algorithm
    + - snps,ter: TER value for EST algorithm
    + - snps,gcl: Variable size array with GCL table entries.
    + - snps,fp: Enable FP feature. This needs EST enabled.
    +
    Examples:

    stmmac_axi_setup: stmmac-axi-config {
    @@ -151,6 +161,15 @@ Examples:
    };
    };

    + tsn_setup: tsn-config {
    + snps,est;
    + snps,btr = <0x00000000 0x00000001>;
    + snps,ctr = <0x00000000 0x10000000>;
    + snps,ter = <0x00000000>;
    + snps,gcl = <0x00000001 0x00000002 0x00000003>;
    + snps,fp;
    + };
    +
    gmac0: ethernet@e0800000 {
    compatible = "st,spear600-gmac";
    reg = <0xe0800000 0x8000>;
    @@ -176,4 +195,5 @@ Examples:
    };
    snps,mtl-rx-config = <&mtl_rx_setup>;
    snps,mtl-tx-config = <&mtl_tx_setup>;
    + snps,tsn-config = <&tsn_setup>;
    };
    --
    1.9.1

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