Add basic driver for TI DP83TD510E T1L PHY
Signed-off-by: Oleksij Rempel <o.rem...@pengutronix.de>
---
drivers/net/phy/Kconfig | 6 +++++
drivers/net/phy/Makefile | 1 +
drivers/net/phy/dp83td510.c | 45 +++++++++++++++++++++++++++++++++++++
3 files changed, 52 insertions(+)
create mode 100644 drivers/net/phy/dp83td510.c
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 9f74335443..cd20e1de27 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -29,6 +29,12 @@ config DP83867_PHY
help
Currently supports the DP83867 PHY.
+config DP83TD510_PHY
+ tristate "Texas Instruments DP83TD510 Ethernet 10Base-T1L PHY"
+ help
+ Support for the DP83TD510 Ethernet 10Base-T1L PHY. This PHY supports
+ a 10M single pair Ethernet connection for up to 1000 meter cable.
+
config LXT_PHY
bool "Driver for the Intel LXT PHYs"
help
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 54b83e06dd..83f46f11d3 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -17,4 +17,5 @@ obj-$(CONFIG_MDIO_GPIO) += mdio-gpio.o
obj-$(CONFIG_MDIO_BUS_MUX) += mdio-mux.o
obj-$(CONFIG_MDIO_BUS_MUX_GPIO) += mdio-mux-gpio.o
obj-$(CONFIG_DP83867_PHY) += dp83867.o
+obj-$(CONFIG_DP83TD510_PHY) += dp83td510.o
diff --git a/drivers/net/phy/dp83td510.c b/drivers/net/phy/dp83td510.c
new file mode 100644
index 0000000000..44c551e795
--- /dev/null
+++ b/drivers/net/phy/dp83td510.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <common.h>
+#include <linux/phy.h>
+
+#define DP83TD510E_PHY_ID 0x20000181
+
+#define DP83TD510E_PHY_STS 0x10
+#define DP83TD510E_LINK_STATUS BIT(0)
+
+static int dp83td510_read_status(struct phy_device *phydev)
+{
+ u16 phy_sts;
+
+ phy_sts = phy_read(phydev, DP83TD510E_PHY_STS);
+
+ phydev->link = !!(phy_sts & DP83TD510E_LINK_STATUS);
+ if (phydev->link) {
+ phydev->duplex = DUPLEX_FULL;
+ phydev->speed = SPEED_10;
+ } else {
+ phydev->speed = SPEED_UNKNOWN;
+ phydev->duplex = DUPLEX_UNKNOWN;
+ }
+
+ return 0;
+}
+
+static int dp83td510_config_init(struct phy_device *phydev)
+{
+ phydev->supported = SUPPORTED_10baseT_Full | SUPPORTED_Autoneg;
+ phydev->advertising = SUPPORTED_10baseT_Full | SUPPORTED_Autoneg;
+
+ return 0;
+}
+
+static struct phy_driver dp83td510_driver[] = {
+ {
+ PHY_ID_MATCH_MODEL(DP83TD510E_PHY_ID),
+ .drv.name = "TI DP83TD510E",
+ .read_status = dp83td510_read_status,
+ .config_init = dp83td510_config_init,
+ }
+};
+device_phy_drivers(dp83td510_driver);
--
2.30.2
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