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Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0332-drivers-net-phy-aquantia-fix-system-side-protocol-mi.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/701-net-0332-drivers-net-phy-aquantia-fix-system-side-protocol-mi.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0332-drivers-net-phy-aquantia-fix-system-side-protocol-mi.patch b/target/linux/layerscape/patches-5.4/701-net-0332-drivers-net-phy-aquantia-fix-system-side-protocol-mi.patch
new file mode 100644
index 0000000000..2c75ec211f
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0332-drivers-net-phy-aquantia-fix-system-side-protocol-mi.patch
@@ -0,0 +1,34 @@
+From 5f008cb22f60da4e10375f22266c1a4e20b1252e Mon Sep 17 00:00:00 2001
+From: Alex Marginean <alexandru.marginean@nxp.com>
+Date: Fri, 20 Sep 2019 18:22:52 +0300
+Subject: [PATCH] drivers: net: phy: aquantia: fix system side protocol
+ misconfiguration
+
+Do not set up protocols for speeds that are not supported by FW. Enabling
+these protocols leads to link issues on system side.
+
+Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
+---
+ drivers/net/phy/aquantia_main.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/phy/aquantia_main.c
++++ b/drivers/net/phy/aquantia_main.c
+@@ -299,10 +299,16 @@ static int aqr_config_aneg_set_prot(stru
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, AQUANTIA_VND1_GSTART_RATE,
+ aquantia_syscfg[if_type].start_rate);
+
+- for (i = 0; i <= aquantia_syscfg[if_type].cnt; i++)
++ for (i = 0; i <= aquantia_syscfg[if_type].cnt; i++) {
++ u16 reg = phy_read_mmd(phydev, MDIO_MMD_VEND1,
++ AQUANTIA_VND1_GSYSCFG_BASE + i);
++ if (!reg)
++ continue;
++
+ phy_write_mmd(phydev, MDIO_MMD_VEND1,
+ AQUANTIA_VND1_GSYSCFG_BASE + i,
+ aquantia_syscfg[if_type].syscfg);
++ }
+
+ /* wake PHY back up */
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, AQUANTIA_VND1_GLOBAL_SC, 0);