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Diffstat (limited to 'target/linux/bcm4908/patches-5.4/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch')
-rw-r--r--target/linux/bcm4908/patches-5.4/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch30
1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/bcm4908/patches-5.4/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch b/target/linux/bcm4908/patches-5.4/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch
new file mode 100644
index 0000000000..559430a3a7
--- /dev/null
+++ b/target/linux/bcm4908/patches-5.4/701-net-dsa-bcm_sf2-keep-GPHY-enabled-on-the-BCM4908.patch
@@ -0,0 +1,30 @@
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Tue, 16 Feb 2021 00:06:35 +0100
+Subject: [PATCH] net: dsa: bcm_sf2: keep GPHY enabled on the BCM4908
+
+Trying to access disabled PHY results in MDIO_READ_FAIL and:
+[ 11.962886] brcm-sf2 80080000.switch wan: configuring for phy/internal link mode
+[ 11.972500] 8021q: adding VLAN 0 to HW filter on device wan
+[ 11.980205] ------------[ cut here ]------------
+[ 11.984885] WARNING: CPU: 0 PID: 7 at phy_error+0x10/0x58
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+---
+ drivers/net/dsa/bcm_sf2.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/drivers/net/dsa/bcm_sf2.c
++++ b/drivers/net/dsa/bcm_sf2.c
+@@ -1248,6 +1248,12 @@ static int bcm_sf2_sw_probe(struct platf
+ priv->hw_params.core_rev >> 8, priv->hw_params.core_rev & 0xff,
+ priv->irq0, priv->irq1);
+
++ /* BCM4908 has 5 GPHYs which means bcm_sf2_port_setup() will not enable
++ * GPHY when needed. Leave it enabled here.
++ */
++ if (priv->type == BCM4908_DEVICE_ID)
++ bcm_sf2_gphy_enable_set(priv->dev->ds, true);
++
+ return 0;
+
+ out_mdio: