From: "Michal Vokáč" <vokac.m@gmail.com>
To: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
f.fainelli@gmail.com, vivien.didelot@savoirfairelinux.com,
andrew@lunn.ch, mark.rutland@arm.com, robh+dt@kernel.org,
davem@davemloft.net, michal.vokac@ysoft.com
Subject: [PATCH net-next v2 5/7] net: dsa: qca8k: Allow overwriting CPU port setting
Date: Tue, 22 May 2018 13:16:30 +0200 [thread overview]
Message-ID: <1526987792-56861-6-git-send-email-michal.vokac@ysoft.com> (raw)
In-Reply-To: <1526987792-56861-1-git-send-email-michal.vokac@ysoft.com>
Implement adjust_link function that allows to overwrite default CPU port
setting using fixed-link device tree subnode.
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
---
Changes in v2:
- Add "Reviewed-by" tags from Andrew and Florian.
drivers/net/dsa/qca8k.c | 43 +++++++++++++++++++++++++++++++++++++++++++
drivers/net/dsa/qca8k.h | 1 +
2 files changed, 44 insertions(+)
diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
index 14a108b38..7eba987 100644
--- a/drivers/net/dsa/qca8k.c
+++ b/drivers/net/dsa/qca8k.c
@@ -636,6 +636,47 @@ qca8k_setup(struct dsa_switch *ds)
return 0;
}
+static void
+qca8k_adjust_link(struct dsa_switch *ds, int port, struct phy_device *phy)
+{
+ struct qca8k_priv *priv = ds->priv;
+ u32 reg;
+
+ /* Force fixed-link setting for CPU port, skip others. */
+ if (!phy_is_pseudo_fixed_link(phy))
+ return;
+
+ /* Set port speed */
+ switch (phy->speed) {
+ case 10:
+ reg = QCA8K_PORT_STATUS_SPEED_10;
+ break;
+ case 100:
+ reg = QCA8K_PORT_STATUS_SPEED_100;
+ break;
+ case 1000:
+ reg = QCA8K_PORT_STATUS_SPEED_1000;
+ break;
+ default:
+ dev_dbg(priv->dev, "port%d link speed %dMbps not supported.\n",
+ port, phy->speed);
+ return;
+ }
+
+ /* Set duplex mode */
+ if (phy->duplex == DUPLEX_FULL)
+ reg |= QCA8K_PORT_STATUS_DUPLEX;
+
+ /* Force flow control */
+ if (dsa_is_cpu_port(ds, port))
+ reg |= QCA8K_PORT_STATUS_RXFLOW | QCA8K_PORT_STATUS_TXFLOW;
+
+ /* Force link down before changing MAC options */
+ qca8k_port_set_status(priv, port, 0);
+ qca8k_write(priv, QCA8K_REG_PORT_STATUS(port), reg);
+ qca8k_port_set_status(priv, port, 1);
+}
+
static int
qca8k_phy_read(struct dsa_switch *ds, int phy, int regnum)
{
@@ -909,6 +950,7 @@ qca8k_get_tag_protocol(struct dsa_switch *ds, int port)
static const struct dsa_switch_ops qca8k_switch_ops = {
.get_tag_protocol = qca8k_get_tag_protocol,
.setup = qca8k_setup,
+ .adjust_link = qca8k_adjust_link,
.get_strings = qca8k_get_strings,
.phy_read = qca8k_phy_read,
.phy_write = qca8k_phy_write,
@@ -942,6 +984,7 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
return -ENOMEM;
priv->bus = mdiodev->bus;
+ priv->dev = &mdiodev->dev;
/* read the switches ID register */
id = qca8k_read(priv, QCA8K_REG_MASK_CTRL);
diff --git a/drivers/net/dsa/qca8k.h b/drivers/net/dsa/qca8k.h
index 5bda165..613fe5c5 100644
--- a/drivers/net/dsa/qca8k.h
+++ b/drivers/net/dsa/qca8k.h
@@ -167,6 +167,7 @@ struct qca8k_priv {
struct ar8xxx_port_status port_sts[QCA8K_NUM_PORTS];
struct dsa_switch *ds;
struct mutex reg_mutex;
+ struct device *dev;
};
struct qca8k_mib_desc {
--
2.1.4
next prev parent reply other threads:[~2018-05-22 11:16 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-22 11:16 [PATCH net-next v2 0/7] Add support for QCA8334 switch Michal Vokáč
2018-05-22 11:16 ` [PATCH net-next v2 1/7] net: dsa: qca8k: Add QCA8334 binding documentation Michal Vokáč
2018-05-22 19:40 ` Rob Herring
2018-05-22 20:50 ` Michal
2018-05-22 21:58 ` Andrew Lunn
2018-05-22 11:16 ` [PATCH net-next v2 2/7] net: dsa: qca8k: Add support for QCA8334 switch Michal Vokáč
2018-05-22 21:58 ` [PATCH net-next v2 2/7] net: dsa: qca8k: Add support for QCA8334 switch' Andrew Lunn
2018-05-22 11:16 ` [PATCH net-next v2 3/7] net: dsa: qca8k: Enable RXMAC when bringing up a port Michal Vokáč
2018-05-22 11:16 ` [PATCH net-next v2 4/7] net: dsa: qca8k: Force CPU port to its highest bandwidth Michal Vokáč
2018-05-22 11:16 ` Michal Vokáč [this message]
2018-05-22 11:16 ` [PATCH net-next v2 6/7] net: dsa: qca8k: Replace GPL boilerplate by SPDX Michal Vokáč
2018-05-22 11:16 ` [PATCH net-next v2 7/7] net: dsa: qca8k: Remove redundant parentheses Michal Vokáč
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