Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 87 insertions, 0 deletions

diff --git a/drivers/net/ethernet/ibm/emac/phy.h b/drivers/net/ethernet/ibm/emac/phy.h
new file mode 100644
index 000000000..d7e41ec37
--- /dev/null
+++ b/drivers/net/ethernet/ibm/emac/phy.h
@@ -0,0 +1,87 @@
+/*
+ * drivers/net/ethernet/ibm/emac/phy.h
+ *
+ * Driver for PowerPC 4xx on-chip ethernet controller, PHY support
+ *
+ * Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
+ *                <benh@kernel.crashing.org>
+ *
+ * Based on the arch/ppc version of the driver:
+ *
+ * Benjamin Herrenschmidt <benh@kernel.crashing.org>
+ * February 2003
+ *
+ * Minor additions by Eugene Surovegin <ebs@ebshome.net>, 2004
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * This file basically duplicates sungem_phy.{c,h} with different PHYs
+ * supported. I'm looking into merging that in a single mii layer more
+ * flexible than mii.c
+ */
+
+#ifndef __IBM_NEWEMAC_PHY_H
+#define __IBM_NEWEMAC_PHY_H
+
+struct mii_phy;
+
+/* Operations supported by any kind of PHY */
+struct mii_phy_ops {
+	int (*init) (struct mii_phy * phy);
+	int (*suspend) (struct mii_phy * phy, int wol_options);
+	int (*setup_aneg) (struct mii_phy * phy, u32 advertise);
+	int (*setup_forced) (struct mii_phy * phy, int speed, int fd);
+	int (*poll_link) (struct mii_phy * phy);
+	int (*read_link) (struct mii_phy * phy);
+};
+
+/* Structure used to statically define an mii/gii based PHY */
+struct mii_phy_def {
+	u32 phy_id;		/* Concatenated ID1 << 16 | ID2 */
+	u32 phy_id_mask;	/* Significant bits */
+	u32 features;		/* Ethtool SUPPORTED_* defines or
+				   0 for autodetect */
+	int magic_aneg;		/* Autoneg does all speed test for us */
+	const char *name;
+	const struct mii_phy_ops *ops;
+};
+
+/* An instance of a PHY, partially borrowed from mii_if_info */
+struct mii_phy {
+	struct mii_phy_def *def;
+	u32 advertising;	/* Ethtool ADVERTISED_* defines */
+	u32 features;		/* Copied from mii_phy_def.features
+				   or determined automaticaly */
+	int address;		/* PHY address */
+	int mode;		/* PHY mode */
+	int gpcs_address;	/* GPCS PHY address */
+
+	/* 1: autoneg enabled, 0: disabled */
+	int autoneg;
+
+	/* forced speed & duplex (no autoneg)
+	 * partner speed & duplex & pause (autoneg)
+	 */
+	int speed;
+	int duplex;
+	int pause;
+	int asym_pause;
+
+	/* Provided by host chip */
+	struct net_device *dev;
+	int (*mdio_read) (struct net_device * dev, int addr, int reg);
+	void (*mdio_write) (struct net_device * dev, int addr, int reg,
+			    int val);
+};
+
+/* Pass in a struct mii_phy with dev, mdio_read and mdio_write
+ * filled, the remaining fields will be filled on return
+ */
+int emac_mii_phy_probe(struct mii_phy *phy, int address);
+int emac_mii_reset_phy(struct mii_phy *phy);
+int emac_mii_reset_gpcs(struct mii_phy *phy);
+
+#endif /* __IBM_NEWEMAC_PHY_H */