mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 23:42:43 +00:00
4d81f40d63
Two patches declared as accepted in v6.13 were already accepted for
v6.12. Fix filenames and order of patches applied.
Reported-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Fixes: 8cc049cec2 ("generic: phy: aquantia: move accepted patches to backport-6.6")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
108 lines
3.7 KiB
Diff
108 lines
3.7 KiB
Diff
From a2e1ba275eae96a8171deb19e9c7c2f5978fee7b Mon Sep 17 00:00:00 2001
|
|
From: Daniel Golle <daniel@makrotopia.org>
|
|
Date: Fri, 4 Oct 2024 17:18:16 +0100
|
|
Subject: [PATCH] net: phy: aquantia: allow forcing order of MDI pairs
|
|
|
|
Despite supporting Auto MDI-X, it looks like Aquantia only supports
|
|
swapping pair (1,2) with pair (3,6) like it used to be for MDI-X on
|
|
100MBit/s networks.
|
|
|
|
When all 4 pairs are in use (for 1000MBit/s or faster) the link does not
|
|
come up with pair order is not configured correctly, either using
|
|
MDI_CFG pin or using the "PMA Receive Reserved Vendor Provisioning 1"
|
|
register.
|
|
|
|
Normally, the order of MDI pairs being either ABCD or DCBA is configured
|
|
by pulling the MDI_CFG pin.
|
|
|
|
However, some hardware designs require overriding the value configured
|
|
by that bootstrap pin. The PHY allows doing that by setting a bit in
|
|
"PMA Receive Reserved Vendor Provisioning 1" register which allows
|
|
ignoring the state of the MDI_CFG pin and another bit configuring
|
|
whether the order of MDI pairs should be normal (ABCD) or reverse
|
|
(DCBA). Pair polarity is not affected and remains identical in both
|
|
settings.
|
|
|
|
Introduce property "marvell,mdi-cfg-order" which allows forcing either
|
|
normal or reverse order of the MDI pairs from DT.
|
|
|
|
If the property isn't present, the behavior is unchanged and MDI pair
|
|
order configuration is untouched (ie. either the result of MDI_CFG pin
|
|
pull-up/pull-down, or pair order override already configured by the
|
|
bootloader before Linux is started).
|
|
|
|
Forcing normal pair order is required on the Adtran SDG-8733A Wi-Fi 7
|
|
residential gateway.
|
|
|
|
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
|
|
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
|
|
Link: https://patch.msgid.link/9ed760ff87d5fc456f31e407ead548bbb754497d.1728058550.git.daniel@makrotopia.org
|
|
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
---
|
|
drivers/net/phy/aquantia/aquantia_main.c | 33 ++++++++++++++++++++++++
|
|
1 file changed, 33 insertions(+)
|
|
|
|
--- a/drivers/net/phy/aquantia/aquantia_main.c
|
|
+++ b/drivers/net/phy/aquantia/aquantia_main.c
|
|
@@ -11,6 +11,7 @@
|
|
#include <linux/module.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/bitfield.h>
|
|
+#include <linux/of.h>
|
|
#include <linux/phy.h>
|
|
|
|
#include "aquantia.h"
|
|
@@ -70,6 +71,11 @@
|
|
#define MDIO_AN_TX_VEND_INT_MASK2 0xd401
|
|
#define MDIO_AN_TX_VEND_INT_MASK2_LINK BIT(0)
|
|
|
|
+#define PMAPMD_RSVD_VEND_PROV 0xe400
|
|
+#define PMAPMD_RSVD_VEND_PROV_MDI_CONF GENMASK(1, 0)
|
|
+#define PMAPMD_RSVD_VEND_PROV_MDI_REVERSE BIT(0)
|
|
+#define PMAPMD_RSVD_VEND_PROV_MDI_FORCE BIT(1)
|
|
+
|
|
#define MDIO_AN_RX_LP_STAT1 0xe820
|
|
#define MDIO_AN_RX_LP_STAT1_1000BASET_FULL BIT(15)
|
|
#define MDIO_AN_RX_LP_STAT1_1000BASET_HALF BIT(14)
|
|
@@ -497,6 +503,29 @@ static int aqr107_wait_processor_intensi
|
|
return 0;
|
|
}
|
|
|
|
+static int aqr107_config_mdi(struct phy_device *phydev)
|
|
+{
|
|
+ struct device_node *np = phydev->mdio.dev.of_node;
|
|
+ u32 mdi_conf;
|
|
+ int ret;
|
|
+
|
|
+ ret = of_property_read_u32(np, "marvell,mdi-cfg-order", &mdi_conf);
|
|
+
|
|
+ /* Do nothing in case property "marvell,mdi-cfg-order" is not present */
|
|
+ if (ret == -ENOENT)
|
|
+ return 0;
|
|
+
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
+ if (mdi_conf & ~PMAPMD_RSVD_VEND_PROV_MDI_REVERSE)
|
|
+ return -EINVAL;
|
|
+
|
|
+ return phy_modify_mmd(phydev, MDIO_MMD_PMAPMD, PMAPMD_RSVD_VEND_PROV,
|
|
+ PMAPMD_RSVD_VEND_PROV_MDI_CONF,
|
|
+ mdi_conf | PMAPMD_RSVD_VEND_PROV_MDI_FORCE);
|
|
+}
|
|
+
|
|
static int aqr107_config_init(struct phy_device *phydev)
|
|
{
|
|
struct aqr107_priv *priv = phydev->priv;
|
|
@@ -535,6 +564,10 @@ static int aqr107_config_init(struct phy
|
|
if (ret)
|
|
return ret;
|
|
|
|
+ ret = aqr107_config_mdi(phydev);
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
/* Restore LED polarity state after reset */
|
|
for_each_set_bit(led_active_low, &priv->leds_active_low, AQR_MAX_LEDS) {
|
|
ret = aqr_phy_led_active_low_set(phydev, led_active_low, true);
|