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be16951494
This is a temporary workaround to get the ethernet working, since external switch is connected by MDIO and it needs additional work. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
73 lines
2.2 KiB
Diff
73 lines
2.2 KiB
Diff
From 32cf73d8c6485b7b97aca7e377a68436d09b7022 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
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Date: Sun, 14 Mar 2021 20:03:44 +0100
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Subject: [PATCH] net: dsa: b53: add support for BCM63xx RGMIIs
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
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---
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drivers/net/dsa/b53/b53_common.c | 37 ++++++++++++++++++++++++++++++++
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1 file changed, 37 insertions(+)
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--- a/drivers/net/dsa/b53/b53_common.c
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+++ b/drivers/net/dsa/b53/b53_common.c
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@@ -1140,6 +1140,36 @@ static void b53_force_port_config(struct
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b53_write8(dev, B53_CTRL_PAGE, off, reg);
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}
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+static void b53_adjust_63xx_rgmii(struct dsa_switch *ds, int port,
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+ phy_interface_t interface)
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+{
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+ struct b53_device *dev = ds->priv;
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+ u8 rgmii_ctrl = 0, off;
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+
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+ if (port == 8)
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+ off = B53_RGMII_CTRL_IMP;
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+ else
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+ off = B53_RGMII_CTRL_P(port);
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+
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+ b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl);
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+
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+ rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC);
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+ if (interface == PHY_INTERFACE_MODE_RGMII_ID)
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+ rgmii_ctrl |= (RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC);
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+ else if (interface == PHY_INTERFACE_MODE_RGMII_RXID)
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+ rgmii_ctrl |= RGMII_CTRL_DLL_RXC;
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+ else if (interface == PHY_INTERFACE_MODE_RGMII_TXID)
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+ rgmii_ctrl |= RGMII_CTRL_DLL_TXC;
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+
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+ if (port != B53_CPU_PORT)
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+ rgmii_ctrl |= RGMII_CTRL_ENABLE_GMII;
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+
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+ b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl);
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+
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+ dev_info(ds->dev, "Configured port %d for %s\n", port,
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+ phy_modes(interface));
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+}
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+
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static void b53_adjust_link(struct dsa_switch *ds, int port,
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struct phy_device *phydev)
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{
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@@ -1166,6 +1196,9 @@ static void b53_adjust_link(struct dsa_s
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tx_pause, rx_pause);
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b53_force_link(dev, port, phydev->link);
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+ if (is63xx(dev))
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+ b53_adjust_63xx_rgmii(ds, port, phydev->interface);
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+
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if (is531x5(dev) && phy_interface_is_rgmii(phydev)) {
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if (port == 8)
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off = B53_RGMII_CTRL_IMP;
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@@ -1358,6 +1391,9 @@ void b53_phylink_mac_link_up(struct dsa_
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{
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struct b53_device *dev = ds->priv;
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+ if (is63xx(dev) && port >= 4)
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+ b53_adjust_63xx_rgmii(ds, port, interface);
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+
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if (mode == MLO_AN_PHY)
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return;
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