diff options
Diffstat (limited to 'target/linux/generic')
| -rw-r--r-- | target/linux/generic/pending-5.15/722-net-phy-realtek-support-switching-between-SGMII-and-.patch | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.15/722-net-phy-realtek-support-switching-between-SGMII-and-.patch b/target/linux/generic/pending-5.15/722-net-phy-realtek-support-switching-between-SGMII-and-.patch new file mode 100644 index 0000000000..f4e87f52de --- /dev/null +++ b/target/linux/generic/pending-5.15/722-net-phy-realtek-support-switching-between-SGMII-and-.patch @@ -0,0 +1,61 @@ +From 312753d0aadba0f58841ae513b80fdbabc887523 Mon Sep 17 00:00:00 2001 +From: Chukun Pan <amadeus@jmu.edu.cn> +Date: Wed, 8 Feb 2023 16:32:18 +0800 +Subject: [PATCH] net: phy: realtek: support switching between SGMII and + 2500BASE-X for RTL822x series + +After commit ace6aba ("net: phy: realtek: rtl8221: allow to configure +SERDES mode"), the rtl8221 phy can work in SGMII and 2500base-x modes +respectively. So add interface automatic switching for rtl8221 phy to +match various wire speeds. + +Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn> +--- + drivers/net/phy/realtek.c | 26 ++++++++++++++++++++++++-- + 1 file changed, 24 insertions(+), 2 deletions(-) + +--- a/drivers/net/phy/realtek.c ++++ b/drivers/net/phy/realtek.c +@@ -676,6 +676,25 @@ static int rtl822x_config_aneg(struct ph + return __genphy_config_aneg(phydev, ret); + } + ++static void rtl822x_update_interface(struct phy_device *phydev) ++{ ++ /* Automatically switch SERDES interface between ++ * SGMII and 2500-BaseX according to speed. ++ */ ++ switch (phydev->speed) { ++ case SPEED_2500: ++ phydev->interface = PHY_INTERFACE_MODE_2500BASEX; ++ break; ++ case SPEED_1000: ++ case SPEED_100: ++ case SPEED_10: ++ phydev->interface = PHY_INTERFACE_MODE_SGMII; ++ break; ++ default: ++ break; ++ } ++} ++ + static int rtl822x_read_status(struct phy_device *phydev) + { + int ret; +@@ -694,11 +713,14 @@ static int rtl822x_read_status(struct ph + phydev->lp_advertising, lpadv & RTL_LPADV_2500FULL); + } + +- ret = genphy_read_status(phydev); ++ ret = rtlgen_read_status(phydev); + if (ret < 0) + return ret; + +- return rtlgen_get_speed(phydev); ++ if (phydev->link) ++ rtl822x_update_interface(phydev); ++ ++ return 0; + } + + static bool rtlgen_supports_2_5gbps(struct phy_device *phydev) |