1 files changed, 111 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/net/phy/fixed.c b/roms/u-boot/drivers/net/phy/fixed.c
new file mode 100644
index 000000000..1192915ee
--- /dev/null
+++ b/roms/u-boot/drivers/net/phy/fixed.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Fixed-Link phy
+ *
+ * Copyright 2017 Bernecker & Rainer Industrieelektronik GmbH
+ */
+
+#include <config.h>
+#include <common.h>
+#include <malloc.h>
+#include <phy.h>
+#include <dm.h>
+#include <fdt_support.h>
+#include <asm/global_data.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int fixedphy_probe(struct phy_device *phydev)
+{
+	/* fixed-link phy must not be reset by core phy code */
+	phydev->flags |= PHY_FLAG_BROKEN_RESET;
+
+	return 0;
+}
+
+static int fixedphy_config(struct phy_device *phydev)
+{
+	ofnode node = phy_get_ofnode(phydev);
+	struct fixed_link *priv;
+	bool old_binding = false;
+	u32 old_val[5];
+	u32 val;
+
+	if (!ofnode_valid(node))
+		return -EINVAL;
+
+	/* check for mandatory properties within fixed-link node */
+	val = ofnode_read_u32_default(node, "speed", 0);
+
+	if (!val) {
+		/* try old binding */
+		old_binding = true;
+		if (ofnode_read_u32_array(node, "fixed-link", old_val,
+					  ARRAY_SIZE(old_val))) {
+			printf("ERROR: no/invalid <fixed-link> property!\n");
+			return -ENOENT;
+		}
+		val = old_val[2];
+	}
+
+	if (val != SPEED_10 && val != SPEED_100 && val != SPEED_1000 &&
+	    val != SPEED_2500 && val != SPEED_10000) {
+		printf("ERROR: no/invalid speed given in fixed-link node!\n");
+		return -EINVAL;
+	}
+
+	priv = malloc(sizeof(*priv));
+	if (!priv)
+		return -ENOMEM;
+	memset(priv, 0, sizeof(*priv));
+
+	phydev->priv = priv;
+
+	priv->link_speed = val;
+	if (!old_binding) {
+		priv->duplex = ofnode_read_bool(node, "full-duplex");
+		priv->pause = ofnode_read_bool(node, "pause");
+		priv->asym_pause = ofnode_read_bool(node, "asym-pause");
+	} else {
+		priv->duplex = old_val[1];
+		priv->pause = old_val[3];
+		priv->asym_pause = old_val[4];
+	}
+
+	return 0;
+}
+
+static int fixedphy_startup(struct phy_device *phydev)
+{
+	struct fixed_link *priv = phydev->priv;
+
+	phydev->asym_pause = priv->asym_pause;
+	phydev->pause = priv->pause;
+	phydev->duplex = priv->duplex;
+	phydev->speed = priv->link_speed;
+	phydev->link = 1;
+
+	return 0;
+}
+
+static int fixedphy_shutdown(struct phy_device *phydev)
+{
+	return 0;
+}
+
+static struct phy_driver fixedphy_driver = {
+	.uid		= PHY_FIXED_ID,
+	.mask		= 0xffffffff,
+	.name		= "Fixed PHY",
+	.features	= PHY_GBIT_FEATURES | SUPPORTED_MII,
+	.probe		= fixedphy_probe,
+	.config		= fixedphy_config,
+	.startup	= fixedphy_startup,
+	.shutdown	= fixedphy_shutdown,
+};
+
+int phy_fixed_init(void)
+{
+	phy_register(&fixedphy_driver);
+	return 0;
+}