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From 32cf73d8c6485b7b97aca7e377a68436d09b7022 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
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 <noltari@gmail.com>
---
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;
|
