| 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 |
| @@ -312,10 +312,16 @@ 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); |