mpc83xx: add QE ethernet support

this patch adds support for the QUICC Engine based UCC gigabit ethernet device.

1 files changed, 256 insertions, 0 deletions

diff --git a/drivers/qe/uec_phy.h b/drivers/qe/uec_phy.h
new file mode 100644
index 0000000..a82f1f5
--- /dev/null
+++ b/drivers/qe/uec_phy.h
@@ -0,0 +1,256 @@
+/*
+ * Copyright (C) 2005 Freescale Semiconductor, Inc.
+ *
+ * Author: Shlomi Gridish <gridish@freescale.com>
+ *
+ * Description: UCC ethernet driver -- PHY handling
+ * 		Driver for UEC on QE
+ * 		Based on 8260_io/fcc_enet.c
+ *
+ * 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.
+ *
+ */
+#ifndef __UEC_PHY_H__
+#define __UEC_PHY_H__
+
+#define MII_end ((u32)-2)
+#define MII_read ((u32)-1)
+
+#define MIIMIND_BUSY            0x00000001
+#define MIIMIND_NOTVALID        0x00000004
+
+#define UGETH_AN_TIMEOUT        2000
+
+/* 1000BT control (Marvell & BCM54xx at least) */
+#define MII_1000BASETCONTROL                  0x09
+#define MII_1000BASETCONTROL_FULLDUPLEXCAP    0x0200
+#define MII_1000BASETCONTROL_HALFDUPLEXCAP    0x0100
+
+/* Cicada Extended Control Register 1 */
+#define MII_CIS8201_EXT_CON1        0x17
+#define MII_CIS8201_EXTCON1_INIT    0x0000
+
+/* Cicada Interrupt Mask Register */
+#define MII_CIS8201_IMASK           0x19
+#define MII_CIS8201_IMASK_IEN       0x8000
+#define MII_CIS8201_IMASK_SPEED     0x4000
+#define MII_CIS8201_IMASK_LINK      0x2000
+#define MII_CIS8201_IMASK_DUPLEX    0x1000
+#define MII_CIS8201_IMASK_MASK      0xf000
+
+/* Cicada Interrupt Status Register */
+#define MII_CIS8201_ISTAT           0x1a
+#define MII_CIS8201_ISTAT_STATUS    0x8000
+#define MII_CIS8201_ISTAT_SPEED     0x4000
+#define MII_CIS8201_ISTAT_LINK      0x2000
+#define MII_CIS8201_ISTAT_DUPLEX    0x1000
+
+/* Cicada Auxiliary Control/Status Register */
+#define MII_CIS8201_AUX_CONSTAT        0x1c
+#define MII_CIS8201_AUXCONSTAT_INIT    0x0004
+#define MII_CIS8201_AUXCONSTAT_DUPLEX  0x0020
+#define MII_CIS8201_AUXCONSTAT_SPEED   0x0018
+#define MII_CIS8201_AUXCONSTAT_GBIT    0x0010
+#define MII_CIS8201_AUXCONSTAT_100     0x0008
+
+/* 88E1011 PHY Status Register */
+#define MII_M1011_PHY_SPEC_STATUS               0x11
+#define MII_M1011_PHY_SPEC_STATUS_1000          0x8000
+#define MII_M1011_PHY_SPEC_STATUS_100           0x4000
+#define MII_M1011_PHY_SPEC_STATUS_SPD_MASK      0xc000
+#define MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX    0x2000
+#define MII_M1011_PHY_SPEC_STATUS_RESOLVED      0x0800
+#define MII_M1011_PHY_SPEC_STATUS_LINK          0x0400
+
+#define MII_M1011_IEVENT                0x13
+#define MII_M1011_IEVENT_CLEAR          0x0000
+
+#define MII_M1011_IMASK                 0x12
+#define MII_M1011_IMASK_INIT            0x6400
+#define MII_M1011_IMASK_CLEAR           0x0000
+
+#define MII_DM9161_SCR                  0x10
+#define MII_DM9161_SCR_INIT             0x0610
+#define MII_DM9161_SCR_RMII_INIT	0x0710
+
+/* DM9161 Specified Configuration and Status Register */
+#define MII_DM9161_SCSR                 0x11
+#define MII_DM9161_SCSR_100F            0x8000
+#define MII_DM9161_SCSR_100H            0x4000
+#define MII_DM9161_SCSR_10F             0x2000
+#define MII_DM9161_SCSR_10H             0x1000
+
+/* DM9161 Interrupt Register */
+#define MII_DM9161_INTR                 0x15
+#define MII_DM9161_INTR_PEND            0x8000
+#define MII_DM9161_INTR_DPLX_MASK       0x0800
+#define MII_DM9161_INTR_SPD_MASK        0x0400
+#define MII_DM9161_INTR_LINK_MASK       0x0200
+#define MII_DM9161_INTR_MASK            0x0100
+#define MII_DM9161_INTR_DPLX_CHANGE     0x0010
+#define MII_DM9161_INTR_SPD_CHANGE      0x0008
+#define MII_DM9161_INTR_LINK_CHANGE     0x0004
+#define MII_DM9161_INTR_INIT            0x0000
+#define MII_DM9161_INTR_STOP    \
+(MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK \
+ | MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK)
+
+/* DM9161 10BT Configuration/Status */
+#define MII_DM9161_10BTCSR              0x12
+#define MII_DM9161_10BTCSR_INIT         0x7800
+
+#define MII_BASIC_FEATURES    (SUPPORTED_10baseT_Half | \
+                 SUPPORTED_10baseT_Full | \
+                 SUPPORTED_100baseT_Half | \
+                 SUPPORTED_100baseT_Full | \
+                 SUPPORTED_Autoneg | \
+                 SUPPORTED_TP | \
+                 SUPPORTED_MII)
+
+#define MII_GBIT_FEATURES    (MII_BASIC_FEATURES | \
+                 SUPPORTED_1000baseT_Half | \
+                 SUPPORTED_1000baseT_Full)
+
+#define MII_READ_COMMAND                0x00000001
+
+#define MII_INTERRUPT_DISABLED          0x0
+#define MII_INTERRUPT_ENABLED           0x1
+
+#define SPEED_10    10
+#define SPEED_100   100
+#define SPEED_1000  1000
+
+/* Duplex, half or full. */
+#define DUPLEX_HALF             0x00
+#define DUPLEX_FULL             0x01
+
+/* Indicates what features are supported by the interface. */
+#define SUPPORTED_10baseT_Half          (1 << 0)
+#define SUPPORTED_10baseT_Full          (1 << 1)
+#define SUPPORTED_100baseT_Half         (1 << 2)
+#define SUPPORTED_100baseT_Full         (1 << 3)
+#define SUPPORTED_1000baseT_Half        (1 << 4)
+#define SUPPORTED_1000baseT_Full        (1 << 5)
+#define SUPPORTED_Autoneg               (1 << 6)
+#define SUPPORTED_TP                    (1 << 7)
+#define SUPPORTED_AUI                   (1 << 8)
+#define SUPPORTED_MII                   (1 << 9)
+#define SUPPORTED_FIBRE                 (1 << 10)
+#define SUPPORTED_BNC                   (1 << 11)
+#define SUPPORTED_10000baseT_Full       (1 << 12)
+
+#define ADVERTISED_10baseT_Half         (1 << 0)
+#define ADVERTISED_10baseT_Full         (1 << 1)
+#define ADVERTISED_100baseT_Half        (1 << 2)
+#define ADVERTISED_100baseT_Full        (1 << 3)
+#define ADVERTISED_1000baseT_Half       (1 << 4)
+#define ADVERTISED_1000baseT_Full       (1 << 5)
+#define ADVERTISED_Autoneg              (1 << 6)
+#define ADVERTISED_TP                   (1 << 7)
+#define ADVERTISED_AUI                  (1 << 8)
+#define ADVERTISED_MII                  (1 << 9)
+#define ADVERTISED_FIBRE                (1 << 10)
+#define ADVERTISED_BNC                  (1 << 11)
+#define ADVERTISED_10000baseT_Full      (1 << 12)
+
+/* Advertisement control register. */
+#define ADVERTISE_SLCT          0x001f  /* Selector bits               */
+#define ADVERTISE_CSMA          0x0001  /* Only selector supported     */
+#define ADVERTISE_10HALF        0x0020  /* Try for 10mbps half-duplex  */
+#define ADVERTISE_10FULL        0x0040  /* Try for 10mbps full-duplex  */
+#define ADVERTISE_100HALF       0x0080  /* Try for 100mbps half-duplex */
+#define ADVERTISE_100FULL       0x0100  /* Try for 100mbps full-duplex */
+#define ADVERTISE_100BASE4      0x0200  /* Try for 100mbps 4k packets  */
+#define ADVERTISE_RESV          0x1c00  /* Unused...                   */
+#define ADVERTISE_RFAULT        0x2000  /* Say we can detect faults    */
+#define ADVERTISE_LPACK         0x4000  /* Ack link partners response  */
+#define ADVERTISE_NPAGE         0x8000  /* Next page bit               */
+
+#define ADVERTISE_FULL (ADVERTISE_100FULL | ADVERTISE_10FULL | \
+                        ADVERTISE_CSMA)
+#define ADVERTISE_ALL (ADVERTISE_10HALF | ADVERTISE_10FULL | \
+                       ADVERTISE_100HALF | ADVERTISE_100FULL)
+
+/* Taken from mii_if_info and sungem_phy.h */
+struct uec_mii_info {
+    /* Information about the PHY type */
+    /* And management functions */
+    struct phy_info *phyinfo;
+
+    struct eth_device *dev;
+
+    /* forced speed & duplex (no autoneg)
+     * partner speed & duplex & pause (autoneg)
+     */
+    int speed;
+    int duplex;
+    int pause;
+
+    /* The most recently read link state */
+    int link;
+
+    /* Enabled Interrupts */
+    u32 interrupts;
+
+    u32 advertising;
+    int autoneg;
+    int mii_id;
+
+    /* private data pointer */
+    /* For use by PHYs to maintain extra state */
+    void *priv;
+
+    /* Provided by ethernet driver */
+    int (*mdio_read) (struct eth_device *dev, int mii_id, int reg);
+    void (*mdio_write) (struct eth_device *dev, int mii_id, int reg, int val);
+};
+
+/* struct phy_info: a structure which defines attributes for a PHY
+ *
+ * id will contain a number which represents the PHY.  During
+ * startup, the driver will poll the PHY to find out what its
+ * UID--as defined by registers 2 and 3--is.  The 32-bit result
+ * gotten from the PHY will be ANDed with phy_id_mask to
+ * discard any bits which may change based on revision numbers
+ * unimportant to functionality
+ *
+ * There are 6 commands which take a ugeth_mii_info structure.
+ * Each PHY must declare config_aneg, and read_status.
+ */
+struct phy_info {
+    u32 phy_id;
+    char *name;
+    unsigned int phy_id_mask;
+    u32 features;
+
+    /* Called to initialize the PHY */
+    int (*init)(struct uec_mii_info *mii_info);
+
+    /* Called to suspend the PHY for power */
+    int (*suspend)(struct uec_mii_info *mii_info);
+
+    /* Reconfigures autonegotiation (or disables it) */
+    int (*config_aneg)(struct uec_mii_info *mii_info);
+
+    /* Determines the negotiated speed and duplex */
+    int (*read_status)(struct uec_mii_info *mii_info);
+
+    /* Clears any pending interrupts */
+    int (*ack_interrupt)(struct uec_mii_info *mii_info);
+
+    /* Enables or disables interrupts */
+    int (*config_intr)(struct uec_mii_info *mii_info);
+
+    /* Clears up any memory if needed */
+    void (*close)(struct uec_mii_info *mii_info);
+};
+
+struct phy_info *get_phy_info(struct uec_mii_info *mii_info);
+void write_phy_reg(struct eth_device *dev, int mii_id, int regnum, int value);
+int read_phy_reg(struct eth_device *dev, int mii_id, int regnum);
+void mii_clear_phy_interrupt(struct uec_mii_info *mii_info);
+void mii_configure_phy_interrupt(struct uec_mii_info *mii_info, u32 interrupts);
+#endif /* __UEC_PHY_H__ */