linux-kernel - [RFC PATCH net-next 2/2] net: ti: icssg-prueth: Add AM64x icssg support

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Message-ID: <20230830113724.1228624-3-danishanwar@ti.com>
Date:   Wed, 30 Aug 2023 17:07:24 +0530
From:   MD Danish Anwar <danishanwar@...com>
To:     Andrew Lunn <andrew@...n.ch>,
        Vignesh Raghavendra <vigneshr@...com>,
        Roger Quadros <rogerq@...nel.org>,
        Jacob Keller <jacob.e.keller@...el.com>,
        Simon Horman <horms@...nel.org>,
        MD Danish Anwar <danishanwar@...com>,
        Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <netdev@...r.kernel.org>, <srk@...com>, <r-gunasekaran@...com>
Subject: [RFC PATCH net-next 2/2] net: ti: icssg-prueth: Add AM64x icssg support

Add AM64x ICSSG support which is similar to am65x SR2.0, but required:
- all ring configured in exposed ring mode
- always fill both original and buffer fields in cppi5 desc

Signed-off-by: MD Danish Anwar <danishanwar@...com>
---
 drivers/net/ethernet/ti/icssg/icssg_prueth.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
index 3236af45aa4e..c2d1d0c7deb0 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c
+++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
@@ -2676,8 +2676,13 @@ static const struct prueth_pdata am654_icssg_pdata = {
 	.switch_mode = 1,
 };
 
+static const struct prueth_pdata am64x_icssg_pdata = {
+	.fdqring_mode = K3_RINGACC_RING_MODE_RING,
+};
+
 static const struct of_device_id prueth_dt_match[] = {
 	{ .compatible = "ti,am654-icssg-prueth", .data = &am654_icssg_pdata },
+	{ .compatible = "ti,am642-icssg-prueth", .data = &am64x_icssg_pdata },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, prueth_dt_match);
-- 
2.34.1