openwrt/target/linux/generic/pending-6.1/722-net-phy-realtek-support-switching-between-SGMII-and-.patch
John Audia 13cdc8955c kernel: bump 6.1 to 6.1.80
Changelog: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.80

Manually rebased:
	generic/hack-6.1/650-netfilter-add-xt_FLOWOFFLOAD-target.patch[1]

All other patches automatically rebased.

1. Acknowledgement to @heheb and @DragonBluep. Upstream commit for ref: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.1.80&id=9c5662e95a8dcc232c3ef4deb21033badcd260f6

Build system: x86/64
Build-tested: x86/64/AMD Cezanne, ramips/tplink_archer-a6-v3
Run-tested: x86/64/AMD Cezanne, ramips/tplink_archer-a6-v3

Signed-off-by: John Audia <therealgraysky@proton.me>
2024-03-05 00:23:59 +01:00

62 lines
1.7 KiB
Diff

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
@@ -686,6 +686,25 @@ 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;
@@ -704,11 +723,14 @@ 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->is_c45 && phydev->link)
+ rtl822x_update_interface(phydev);
+
+ return 0;
}
static bool rtlgen_supports_2_5gbps(struct phy_device *phydev)