v4.19.13 snapshot.
diff --git a/drivers/net/phy/aquantia.c b/drivers/net/phy/aquantia.c
new file mode 100644
index 0000000..319edc9
--- /dev/null
+++ b/drivers/net/phy/aquantia.c
@@ -0,0 +1,204 @@
+/*
+ * Driver for Aquantia PHY
+ *
+ * Author: Shaohui Xie <Shaohui.Xie@freescale.com>
+ *
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+#include <linux/mdio.h>
+
+#define PHY_ID_AQ1202 0x03a1b445
+#define PHY_ID_AQ2104 0x03a1b460
+#define PHY_ID_AQR105 0x03a1b4a2
+#define PHY_ID_AQR106 0x03a1b4d0
+#define PHY_ID_AQR107 0x03a1b4e0
+#define PHY_ID_AQR405 0x03a1b4b0
+
+#define PHY_AQUANTIA_FEATURES (SUPPORTED_10000baseT_Full | \
+ SUPPORTED_1000baseT_Full | \
+ SUPPORTED_100baseT_Full | \
+ PHY_DEFAULT_FEATURES)
+
+static int aquantia_config_aneg(struct phy_device *phydev)
+{
+ phydev->supported = PHY_AQUANTIA_FEATURES;
+ phydev->advertising = phydev->supported;
+
+ return 0;
+}
+
+static int aquantia_config_intr(struct phy_device *phydev)
+{
+ int err;
+
+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+ err = phy_write_mmd(phydev, MDIO_MMD_AN, 0xd401, 1);
+ if (err < 0)
+ return err;
+
+ err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff00, 1);
+ if (err < 0)
+ return err;
+
+ err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff01, 0x1001);
+ } else {
+ err = phy_write_mmd(phydev, MDIO_MMD_AN, 0xd401, 0);
+ if (err < 0)
+ return err;
+
+ err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff00, 0);
+ if (err < 0)
+ return err;
+
+ err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff01, 0);
+ }
+
+ return err;
+}
+
+static int aquantia_ack_interrupt(struct phy_device *phydev)
+{
+ int reg;
+
+ reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xcc01);
+ return (reg < 0) ? reg : 0;
+}
+
+static int aquantia_read_status(struct phy_device *phydev)
+{
+ int reg;
+
+ reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
+ reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
+ if (reg & MDIO_STAT1_LSTATUS)
+ phydev->link = 1;
+ else
+ phydev->link = 0;
+
+ reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xc800);
+ mdelay(10);
+ reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xc800);
+
+ switch (reg) {
+ case 0x9:
+ phydev->speed = SPEED_2500;
+ break;
+ case 0x5:
+ phydev->speed = SPEED_1000;
+ break;
+ case 0x3:
+ phydev->speed = SPEED_100;
+ break;
+ case 0x7:
+ default:
+ phydev->speed = SPEED_10000;
+ break;
+ }
+ phydev->duplex = DUPLEX_FULL;
+
+ return 0;
+}
+
+static struct phy_driver aquantia_driver[] = {
+{
+ .phy_id = PHY_ID_AQ1202,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Aquantia AQ1202",
+ .features = PHY_AQUANTIA_FEATURES,
+ .flags = PHY_HAS_INTERRUPT,
+ .aneg_done = genphy_c45_aneg_done,
+ .config_aneg = aquantia_config_aneg,
+ .config_intr = aquantia_config_intr,
+ .ack_interrupt = aquantia_ack_interrupt,
+ .read_status = aquantia_read_status,
+},
+{
+ .phy_id = PHY_ID_AQ2104,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Aquantia AQ2104",
+ .features = PHY_AQUANTIA_FEATURES,
+ .flags = PHY_HAS_INTERRUPT,
+ .aneg_done = genphy_c45_aneg_done,
+ .config_aneg = aquantia_config_aneg,
+ .config_intr = aquantia_config_intr,
+ .ack_interrupt = aquantia_ack_interrupt,
+ .read_status = aquantia_read_status,
+},
+{
+ .phy_id = PHY_ID_AQR105,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Aquantia AQR105",
+ .features = PHY_AQUANTIA_FEATURES,
+ .flags = PHY_HAS_INTERRUPT,
+ .aneg_done = genphy_c45_aneg_done,
+ .config_aneg = aquantia_config_aneg,
+ .config_intr = aquantia_config_intr,
+ .ack_interrupt = aquantia_ack_interrupt,
+ .read_status = aquantia_read_status,
+},
+{
+ .phy_id = PHY_ID_AQR106,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Aquantia AQR106",
+ .features = PHY_AQUANTIA_FEATURES,
+ .flags = PHY_HAS_INTERRUPT,
+ .aneg_done = genphy_c45_aneg_done,
+ .config_aneg = aquantia_config_aneg,
+ .config_intr = aquantia_config_intr,
+ .ack_interrupt = aquantia_ack_interrupt,
+ .read_status = aquantia_read_status,
+},
+{
+ .phy_id = PHY_ID_AQR107,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Aquantia AQR107",
+ .features = PHY_AQUANTIA_FEATURES,
+ .flags = PHY_HAS_INTERRUPT,
+ .aneg_done = genphy_c45_aneg_done,
+ .config_aneg = aquantia_config_aneg,
+ .config_intr = aquantia_config_intr,
+ .ack_interrupt = aquantia_ack_interrupt,
+ .read_status = aquantia_read_status,
+},
+{
+ .phy_id = PHY_ID_AQR405,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Aquantia AQR405",
+ .features = PHY_AQUANTIA_FEATURES,
+ .flags = PHY_HAS_INTERRUPT,
+ .aneg_done = genphy_c45_aneg_done,
+ .config_aneg = aquantia_config_aneg,
+ .config_intr = aquantia_config_intr,
+ .ack_interrupt = aquantia_ack_interrupt,
+ .read_status = aquantia_read_status,
+},
+};
+
+module_phy_driver(aquantia_driver);
+
+static struct mdio_device_id __maybe_unused aquantia_tbl[] = {
+ { PHY_ID_AQ1202, 0xfffffff0 },
+ { PHY_ID_AQ2104, 0xfffffff0 },
+ { PHY_ID_AQR105, 0xfffffff0 },
+ { PHY_ID_AQR106, 0xfffffff0 },
+ { PHY_ID_AQR107, 0xfffffff0 },
+ { PHY_ID_AQR405, 0xfffffff0 },
+ { }
+};
+
+MODULE_DEVICE_TABLE(mdio, aquantia_tbl);
+
+MODULE_DESCRIPTION("Aquantia PHY driver");
+MODULE_AUTHOR("Shaohui Xie <Shaohui.Xie@freescale.com>");
+MODULE_LICENSE("GPL v2");