1 From 32cf73d8c6485b7b97aca7e377a68436d09b7022 Mon Sep 17 00:00:00 2001
2 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
3 Date: Sun, 14 Mar 2021 20:03:44 +0100
4 Subject: [PATCH] net: dsa: b53: add support for BCM63xx RGMIIs
6 Content-Type: text/plain; charset=UTF-8
7 Content-Transfer-Encoding: 8bit
9 Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
11 drivers/net/dsa/b53/b53_common.c | 37 ++++++++++++++++++++++++++++++++
12 1 file changed, 37 insertions(+)
14 --- a/drivers/net/dsa/b53/b53_common.c
15 +++ b/drivers/net/dsa/b53/b53_common.c
16 @@ -1148,6 +1148,36 @@ static void b53_force_port_config(struct
17 b53_write8(dev, B53_CTRL_PAGE, off, reg);
20 +static void b53_adjust_63xx_rgmii(struct dsa_switch *ds, int port,
21 + phy_interface_t interface)
23 + struct b53_device *dev = ds->priv;
24 + u8 rgmii_ctrl = 0, off;
27 + off = B53_RGMII_CTRL_IMP;
29 + off = B53_RGMII_CTRL_P(port);
31 + b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl);
33 + rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC);
34 + if (interface == PHY_INTERFACE_MODE_RGMII_ID)
35 + rgmii_ctrl |= (RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC);
36 + else if (interface == PHY_INTERFACE_MODE_RGMII_RXID)
37 + rgmii_ctrl |= RGMII_CTRL_DLL_RXC;
38 + else if (interface == PHY_INTERFACE_MODE_RGMII_TXID)
39 + rgmii_ctrl |= RGMII_CTRL_DLL_TXC;
41 + if (port != B53_CPU_PORT)
42 + rgmii_ctrl |= RGMII_CTRL_ENABLE_GMII;
44 + b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl);
46 + dev_info(ds->dev, "Configured port %d for %s\n", port,
47 + phy_modes(interface));
50 static void b53_adjust_link(struct dsa_switch *ds, int port,
51 struct phy_device *phydev)
53 @@ -1174,6 +1204,9 @@ static void b53_adjust_link(struct dsa_s
55 b53_force_link(dev, port, phydev->link);
58 + b53_adjust_63xx_rgmii(ds, port, phydev->interface);
60 if (is531x5(dev) && phy_interface_is_rgmii(phydev)) {
62 off = B53_RGMII_CTRL_IMP;
63 @@ -1366,6 +1399,9 @@ void b53_phylink_mac_link_up(struct dsa_
65 struct b53_device *dev = ds->priv;
67 + if (is63xx(dev) && port >= 4)
68 + b53_adjust_63xx_rgmii(ds, port, interface);
70 if (mode == MLO_AN_PHY)