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generic: 6.6: fix early RTL8221B detection

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Fixes the issue of RTL8221B-VB-CG not being detected correctly after ca44690.

Fixes: ca4469045f ("generic: 6.6: backport upstream RealTek PHY patches")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Álvaro Fernández Rojas 2024-08-19 18:52:37 +02:00 committed by Daniel Golle
parent 5eec1df01e
commit 052732bddb
2 changed files with 57 additions and 5 deletions
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52
target/linux/generic/pending-6.6/730-net-phy-realtek-detect-early-version-of-RTL8221B.patch Normal file
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@ -0,0 +1,52 @@
From 0de82310d2b32e78ff79d42c08b1122a6ede3778 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Sun, 30 Apr 2023 00:15:41 +0100
Subject: [PATCH] net: phy: realtek: detect early version of RTL8221B
Early versions (?) of the RTL8221B PHY cannot be identified in a regular
Clause-45 bus scan as the PHY doesn't report the implemented MMDs
correctly but returns 0 instead.
Implement custom identify function using the PKGID instead of iterating
over the implemented MMDs.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
[forward-port by @namiltd]
Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -1084,10 +1084,32 @@ static int rtl8226_match_phy_device(stru
static int rtlgen_is_c45_match(struct phy_device *phydev, unsigned int id,
bool is_c45)
{
- if (phydev->is_c45)
- return is_c45 && (id == phydev->c45_ids.device_ids[1]);
- else
+ if (phydev->is_c45) {
+ u32 rid;
+
+ if (!is_c45)
+ return 0;
+
+ rid = phydev->c45_ids.device_ids[1];
+ if ((rid == 0xffffffff) && phydev->mdio.bus->read_c45) {
+ int val;
+
+ val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PKGID1);
+ if (val < 0)
+ return 0;
+
+ rid = val << 16;
+ val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PKGID2);
+ if (val < 0)
+ return 0;
+
+ rid |= val;
+ }
+
+ return (id == rid);
+ } else {
return !is_c45 && (id == phydev->phy_id);
+ }
}
static int rtl8221b_vb_cg_c22_match_phy_device(struct phy_device *phydev)

10
target/linux/generic/pending-6.6/741-net-phy-realtek-support-interrupt-of-RTL8221B.patch
View File

@ -12,7 +12,7 @@ Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -1264,6 +1264,51 @@ static irqreturn_t rtl9000a_handle_inter
@@ -1286,6 +1286,51 @@ static irqreturn_t rtl9000a_handle_inter
return IRQ_HANDLED;
}
@ -64,7 +64,7 @@ Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
static struct phy_driver realtek_drvs[] = {
{
PHY_ID_MATCH_EXACT(0x00008201),
@@ -1430,6 +1475,8 @@ static struct phy_driver realtek_drvs[]
@@ -1452,6 +1497,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vb_cg_c22_match_phy_device,
.name = "RTL8221B-VB-CG 2.5Gbps PHY (C22)",
@ -73,7 +73,7 @@ Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
.probe = rtl822x_probe,
.soft_reset = genphy_soft_reset,
.get_features = rtl822x_get_features,
@@ -1444,6 +1491,8 @@ static struct phy_driver realtek_drvs[]
@@ -1466,6 +1513,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vb_cg_c45_match_phy_device,
.name = "RTL8221B-VB-CG 2.5Gbps PHY (C45)",
@ -82,7 +82,7 @@ Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
.probe = rtl822x_probe,
.soft_reset = genphy_soft_reset,
.config_init = rtl822xb_config_init,
@@ -1456,6 +1505,8 @@ static struct phy_driver realtek_drvs[]
@@ -1478,6 +1527,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vn_cg_c22_match_phy_device,
.name = "RTL8221B-VM-CG 2.5Gbps PHY (C22)",
@ -91,7 +91,7 @@ Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>
.probe = rtl822x_probe,
.soft_reset = genphy_soft_reset,
.get_features = rtl822x_get_features,
@@ -1470,6 +1521,8 @@ static struct phy_driver realtek_drvs[]
@@ -1492,6 +1543,8 @@ static struct phy_driver realtek_drvs[]
}, {
.match_phy_device = rtl8221b_vn_cg_c45_match_phy_device,
.name = "RTL8221B-VN-CG 2.5Gbps PHY (C45)",