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generic: add fix for AQR113 PMD Global Transmit Disable bit

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PMD Global Transmit Disable bit should be cleared for normal operation.
This should be HW default, however I found that on Asus RT-AX89X that uses
AQR113C PHY and firmware 5.4 this bit is set by default.

With this bit set the AQR cannot achieve a link with its link-partner and
it took me multiple hours of digging through the vendor GPL source to find
this out, so lets always clear this bit during .config_init() to avoid a
situation like this in the future.

aqr107_wait_processor_intensive_op() is moved up because datasheet notes
that any changes to this bit are processor intensive.

This is a modified version of patch that got merged upstream as AQR113C
has a separate config_init() upstream.

Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Robert Marko 2024-02-11 18:56:54 +01:00
parent bd85b63920
commit e5c20ddcd0
4 changed files with 210 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

103
target/linux/generic/backport-6.1/839-v6.9-net-phy-aquantia-clear-PMD-Global-Transmit-Disable-b.patch Normal file
View File

@ -0,0 +1,103 @@
From cffac22c9215f1883d3848c788f9b03656dced27 Mon Sep 17 00:00:00 2001
From: Robert Marko <robimarko@gmail.com>
Date: Sun, 11 Feb 2024 18:39:19 +0100
Subject: [PATCH] net: phy: aquantia: clear PMD Global Transmit Disable bit
during init
PMD Global Transmit Disable bit should be cleared for normal operation.
This should be HW default, however I found that on Asus RT-AX89X that uses
AQR113C PHY and firmware 5.4 this bit is set by default.
With this bit set the AQR cannot achieve a link with its link-partner and
it took me multiple hours of digging through the vendor GPL source to find
this out, so lets always clear this bit during .config_init() to avoid a
situation like this in the future.
aqr107_wait_processor_intensive_op() is moved up because datasheet notes
that any changes to this bit are processor intensive.
Signed-off-by: Robert Marko <robimarko@gmail.com>
---
drivers/net/phy/aquantia/aquantia_main.c | 57 ++++++++++++++----------
1 file changed, 33 insertions(+), 24 deletions(-)
--- a/drivers/net/phy/aquantia/aquantia_main.c
+++ b/drivers/net/phy/aquantia/aquantia_main.c
@@ -507,6 +507,30 @@ static void aqr107_chip_info(struct phy_
fw_major, fw_minor, build_id, prov_id);
}
+static int aqr107_wait_processor_intensive_op(struct phy_device *phydev)
+{
+ int val, err;
+
+ /* The datasheet notes to wait at least 1ms after issuing a
+ * processor intensive operation before checking.
+ * We cannot use the 'sleep_before_read' parameter of read_poll_timeout
+ * because that just determines the maximum time slept, not the minimum.
+ */
+ usleep_range(1000, 5000);
+
+ err = phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1,
+ VEND1_GLOBAL_GEN_STAT2, val,
+ !(val & VEND1_GLOBAL_GEN_STAT2_OP_IN_PROG),
+ AQR107_OP_IN_PROG_SLEEP,
+ AQR107_OP_IN_PROG_TIMEOUT, false);
+ if (err) {
+ phydev_err(phydev, "timeout: processor-intensive MDIO operation\n");
+ return err;
+ }
+
+ return 0;
+}
+
static int aqr107_config_init(struct phy_device *phydev)
{
int ret;
@@ -530,6 +554,15 @@ static int aqr107_config_init(struct phy
if (!ret)
aqr107_chip_info(phydev);
+ ret = phy_clear_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_TXDIS,
+ MDIO_PMD_TXDIS_GLOBAL);
+ if (ret)
+ return ret;
+
+ ret = aqr107_wait_processor_intensive_op(phydev);
+ if (ret)
+ return ret;
+
return aqr107_set_downshift(phydev, MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT);
}
@@ -600,30 +633,6 @@ static void aqr107_link_change_notify(st
phydev_info(phydev, "Aquantia 1000Base-T2 mode active\n");
}
-static int aqr107_wait_processor_intensive_op(struct phy_device *phydev)
-{
- int val, err;
-
- /* The datasheet notes to wait at least 1ms after issuing a
- * processor intensive operation before checking.
- * We cannot use the 'sleep_before_read' parameter of read_poll_timeout
- * because that just determines the maximum time slept, not the minimum.
- */
- usleep_range(1000, 5000);
-
- err = phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1,
- VEND1_GLOBAL_GEN_STAT2, val,
- !(val & VEND1_GLOBAL_GEN_STAT2_OP_IN_PROG),
- AQR107_OP_IN_PROG_SLEEP,
- AQR107_OP_IN_PROG_TIMEOUT, false);
- if (err) {
- phydev_err(phydev, "timeout: processor-intensive MDIO operation\n");
- return err;
- }
-
- return 0;
-}
-
static int aqr107_get_rate_matching(struct phy_device *phydev,
phy_interface_t iface)
{

103
target/linux/generic/backport-6.6/836-v6.9-net-phy-aquantia-clear-PMD-Global-Transmit-Disable-b.patch Normal file
View File

@ -0,0 +1,103 @@
From cffac22c9215f1883d3848c788f9b03656dced27 Mon Sep 17 00:00:00 2001
From: Robert Marko <robimarko@gmail.com>
Date: Sun, 11 Feb 2024 18:39:19 +0100
Subject: [PATCH] net: phy: aquantia: clear PMD Global Transmit Disable bit
during init
PMD Global Transmit Disable bit should be cleared for normal operation.
This should be HW default, however I found that on Asus RT-AX89X that uses
AQR113C PHY and firmware 5.4 this bit is set by default.
With this bit set the AQR cannot achieve a link with its link-partner and
it took me multiple hours of digging through the vendor GPL source to find
this out, so lets always clear this bit during .config_init() to avoid a
situation like this in the future.
aqr107_wait_processor_intensive_op() is moved up because datasheet notes
that any changes to this bit are processor intensive.
Signed-off-by: Robert Marko <robimarko@gmail.com>
---
drivers/net/phy/aquantia/aquantia_main.c | 57 ++++++++++++++----------
1 file changed, 33 insertions(+), 24 deletions(-)
--- a/drivers/net/phy/aquantia/aquantia_main.c
+++ b/drivers/net/phy/aquantia/aquantia_main.c
@@ -473,6 +473,30 @@ static void aqr107_chip_info(struct phy_
fw_major, fw_minor, build_id, prov_id);
}
+static int aqr107_wait_processor_intensive_op(struct phy_device *phydev)
+{
+ int val, err;
+
+ /* The datasheet notes to wait at least 1ms after issuing a
+ * processor intensive operation before checking.
+ * We cannot use the 'sleep_before_read' parameter of read_poll_timeout
+ * because that just determines the maximum time slept, not the minimum.
+ */
+ usleep_range(1000, 5000);
+
+ err = phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1,
+ VEND1_GLOBAL_GEN_STAT2, val,
+ !(val & VEND1_GLOBAL_GEN_STAT2_OP_IN_PROG),
+ AQR107_OP_IN_PROG_SLEEP,
+ AQR107_OP_IN_PROG_TIMEOUT, false);
+ if (err) {
+ phydev_err(phydev, "timeout: processor-intensive MDIO operation\n");
+ return err;
+ }
+
+ return 0;
+}
+
static int aqr107_config_init(struct phy_device *phydev)
{
struct aqr107_priv *priv = phydev->priv;
@@ -498,6 +522,15 @@ static int aqr107_config_init(struct phy
if (!ret)
aqr107_chip_info(phydev);
+ ret = phy_clear_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_TXDIS,
+ MDIO_PMD_TXDIS_GLOBAL);
+ if (ret)
+ return ret;
+
+ ret = aqr107_wait_processor_intensive_op(phydev);
+ if (ret)
+ return ret;
+
ret = aqr107_set_downshift(phydev, MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT);
if (ret)
return ret;
@@ -580,30 +613,6 @@ static void aqr107_link_change_notify(st
phydev_info(phydev, "Aquantia 1000Base-T2 mode active\n");
}
-static int aqr107_wait_processor_intensive_op(struct phy_device *phydev)
-{
- int val, err;
-
- /* The datasheet notes to wait at least 1ms after issuing a
- * processor intensive operation before checking.
- * We cannot use the 'sleep_before_read' parameter of read_poll_timeout
- * because that just determines the maximum time slept, not the minimum.
- */
- usleep_range(1000, 5000);
-
- err = phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1,
- VEND1_GLOBAL_GEN_STAT2, val,
- !(val & VEND1_GLOBAL_GEN_STAT2_OP_IN_PROG),
- AQR107_OP_IN_PROG_SLEEP,
- AQR107_OP_IN_PROG_TIMEOUT, false);
- if (err) {
- phydev_err(phydev, "timeout: processor-intensive MDIO operation\n");
- return err;
- }
-
- return 0;
-}
-
static int aqr107_get_rate_matching(struct phy_device *phydev,
phy_interface_t iface)
{

4
target/linux/generic/hack-6.1/722-net-phy-aquantia-enable-AQR112-and-AQR412.patch
View File

@ -106,7 +106,7 @@ Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
static int aqr_config_intr(struct phy_device *phydev)
{
bool en = phydev->interrupts == PHY_INTERRUPT_ENABLED;
@@ -860,6 +930,30 @@ static struct phy_driver aqr_driver[] =
@@ -869,6 +939,30 @@ static struct phy_driver aqr_driver[] =
.get_stats = aqr107_get_stats,
.link_change_notify = aqr107_link_change_notify,
},
@ -137,7 +137,7 @@ Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
};
module_phy_driver(aqr_driver);
@@ -877,6 +971,8 @@ static struct mdio_device_id __maybe_unu
@@ -886,6 +980,8 @@ static struct mdio_device_id __maybe_unu
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR113) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR113C) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR813) },

4
target/linux/generic/hack-6.1/725-net-phy-aquantia-add-PHY_IDs-for-AQR112-variants.patch
View File

@ -21,7 +21,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
#define MDIO_PHYXS_VEND_IF_STATUS 0xe812
#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_MASK GENMASK(7, 3)
@@ -960,6 +962,30 @@ static struct phy_driver aqr_driver[] =
@@ -969,6 +971,30 @@ static struct phy_driver aqr_driver[] =
.get_strings = aqr107_get_strings,
.get_stats = aqr107_get_stats,
},
@ -52,7 +52,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
};
module_phy_driver(aqr_driver);
@@ -979,6 +1005,8 @@ static struct mdio_device_id __maybe_unu
@@ -988,6 +1014,8 @@ static struct mdio_device_id __maybe_unu
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR813) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR112) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR412) },