From 32cf73d8c6485b7b97aca7e377a68436d09b7022 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Sun, 14 Mar 2021 20:03:44 +0100 Subject: [PATCH] net: dsa: b53: add support for BCM63xx RGMIIs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Álvaro Fernández Rojas --- drivers/net/dsa/b53/b53_common.c | 37 ++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -1209,6 +1209,36 @@ static void b53_force_port_config(struct b53_write8(dev, B53_CTRL_PAGE, off, reg); } +static void b53_adjust_63xx_rgmii(struct dsa_switch *ds, int port, + phy_interface_t interface) +{ + struct b53_device *dev = ds->priv; + u8 rgmii_ctrl = 0, off; + + if (port == 8) + off = B53_RGMII_CTRL_IMP; + else + off = B53_RGMII_CTRL_P(port); + + b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl); + + rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC); + if (interface == PHY_INTERFACE_MODE_RGMII_ID) + rgmii_ctrl |= (RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC); + else if (interface == PHY_INTERFACE_MODE_RGMII_RXID) + rgmii_ctrl |= RGMII_CTRL_DLL_RXC; + else if (interface == PHY_INTERFACE_MODE_RGMII_TXID) + rgmii_ctrl |= RGMII_CTRL_DLL_TXC; + + if (port != B53_CPU_PORT) + rgmii_ctrl |= RGMII_CTRL_ENABLE_GMII; + + b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl); + + dev_info(ds->dev, "Configured port %d for %s\n", port, + phy_modes(interface)); +} + static void b53_adjust_link(struct dsa_switch *ds, int port, struct phy_device *phydev) { @@ -1235,6 +1265,9 @@ static void b53_adjust_link(struct dsa_s tx_pause, rx_pause); b53_force_link(dev, port, phydev->link); + if (is63xx(dev)) + b53_adjust_63xx_rgmii(ds, port, phydev->interface); + if (is531x5(dev) && phy_interface_is_rgmii(phydev)) { if (port == dev->imp_port) off = B53_RGMII_CTRL_IMP; @@ -1419,6 +1452,9 @@ void b53_phylink_mac_link_up(struct dsa_ { struct b53_device *dev = ds->priv; + if (is63xx(dev) && port >= 4) + b53_adjust_63xx_rgmii(ds, port, interface); + if (mode == MLO_AN_PHY) return;