/*
 * (C) Copyright 2005 Tundra Semiconductor Corp.
 * Kong Lai, <kong.lai@tundra.com).
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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 program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

/*
 * net/tsi108_eth.h - definitions for Tsi108 GIGE network controller.
 */

#ifndef __TSI108_ETH_H
#define __TSI108_ETH_H

#include <linux/types.h>

#define TSI_WRITE(offset, val) \
        out_be32((data->regs + (offset)), val)

#define TSI_READ(offset) \
        in_be32((data->regs + (offset)))

#define TSI_WRITE_PHY(offset, val) \
        out_be32((data->phyregs + (offset)), val)

#define TSI_READ_PHY(offset) \
        in_be32((data->phyregs + (offset)))

/*
 * TSI108 GIGE port registers
 */

#define TSI108_ETH_PORT_NUM             2
#define TSI108_PBM_PORT                 2
#define TSI108_SDRAM_PORT               4

#define TSI108_MAC_CFG1                 (0x000)
#define TSI108_MAC_CFG1_SOFTRST         (1 << 31)
#define TSI108_MAC_CFG1_LOOPBACK        (1 << 8)
#define TSI108_MAC_CFG1_RXEN            (1 << 2)
#define TSI108_MAC_CFG1_TXEN            (1 << 0)

#define TSI108_MAC_CFG2                 (0x004)
#define TSI108_MAC_CFG2_DFLT_PREAMBLE   (7 << 12)
#define TSI108_MAC_CFG2_IFACE_MASK      (3 << 8)
#define TSI108_MAC_CFG2_NOGIG           (1 << 8)
#define TSI108_MAC_CFG2_GIG             (2 << 8)
#define TSI108_MAC_CFG2_PADCRC          (1 << 2)
#define TSI108_MAC_CFG2_FULLDUPLEX      (1 << 0)

#define TSI108_MAC_MII_MGMT_CFG         (0x020)
#define TSI108_MAC_MII_MGMT_CLK         (7 << 0)
#define TSI108_MAC_MII_MGMT_RST         (1 << 31)

#define TSI108_MAC_MII_CMD              (0x024)
#define TSI108_MAC_MII_CMD_READ         (1 << 0)

#define TSI108_MAC_MII_ADDR             (0x028)
#define TSI108_MAC_MII_ADDR_REG         0
#define TSI108_MAC_MII_ADDR_PHY         8

#define TSI108_MAC_MII_DATAOUT          (0x02c)
#define TSI108_MAC_MII_DATAIN           (0x030)

#define TSI108_MAC_MII_IND              (0x034)
#define TSI108_MAC_MII_IND_NOTVALID     (1 << 2)
#define TSI108_MAC_MII_IND_SCANNING     (1 << 1)
#define TSI108_MAC_MII_IND_BUSY         (1 << 0)

#define TSI108_MAC_IFCTRL               (0x038)
#define TSI108_MAC_IFCTRL_PHYMODE       (1 << 24)

#define TSI108_MAC_ADDR1                (0x040)
#define TSI108_MAC_ADDR2                (0x044)

#define TSI108_STAT_RXBYTES             (0x06c)
#define TSI108_STAT_RXBYTES_CARRY       (1 << 24)

#define TSI108_STAT_RXPKTS              (0x070)
#define TSI108_STAT_RXPKTS_CARRY        (1 << 18)

#define TSI108_STAT_RXFCS               (0x074)
#define TSI108_STAT_RXFCS_CARRY         (1 << 12)

#define TSI108_STAT_RXMCAST             (0x078)
#define TSI108_STAT_RXMCAST_CARRY       (1 << 18)

#define TSI108_STAT_RXALIGN             (0x08c)
#define TSI108_STAT_RXALIGN_CARRY       (1 << 12)

#define TSI108_STAT_RXLENGTH            (0x090)
#define TSI108_STAT_RXLENGTH_CARRY      (1 << 12)

#define TSI108_STAT_RXRUNT              (0x09c)
#define TSI108_STAT_RXRUNT_CARRY        (1 << 12)

#define TSI108_STAT_RXJUMBO             (0x0a0)
#define TSI108_STAT_RXJUMBO_CARRY       (1 << 12)

#define TSI108_STAT_RXFRAG              (0x0a4)
#define TSI108_STAT_RXFRAG_CARRY        (1 << 12)

#define TSI108_STAT_RXJABBER            (0x0a8)
#define TSI108_STAT_RXJABBER_CARRY      (1 << 12)

#define TSI108_STAT_RXDROP              (0x0ac)
#define TSI108_STAT_RXDROP_CARRY        (1 << 12)

#define TSI108_STAT_TXBYTES             (0x0b0)
#define TSI108_STAT_TXBYTES_CARRY       (1 << 24)

#define TSI108_STAT_TXPKTS              (0x0b4)
#define TSI108_STAT_TXPKTS_CARRY        (1 << 18)

#define TSI108_STAT_TXEXDEF             (0x0c8)
#define TSI108_STAT_TXEXDEF_CARRY       (1 << 12)

#define TSI108_STAT_TXEXCOL             (0x0d8)
#define TSI108_STAT_TXEXCOL_CARRY       (1 << 12)

#define TSI108_STAT_TXTCOL              (0x0dc)
#define TSI108_STAT_TXTCOL_CARRY        (1 << 13)

#define TSI108_STAT_TXPAUSEDROP         (0x0e4)
#define TSI108_STAT_TXPAUSEDROP_CARRY   (1 << 12)

#define TSI108_STAT_CARRY1              (0x100)
#define TSI108_STAT_CARRY1_RXBYTES      (1 << 16)
#define TSI108_STAT_CARRY1_RXPKTS       (1 << 15)
#define TSI108_STAT_CARRY1_RXFCS        (1 << 14)
#define TSI108_STAT_CARRY1_RXMCAST      (1 << 13)
#define TSI108_STAT_CARRY1_RXALIGN      (1 << 8)
#define TSI108_STAT_CARRY1_RXLENGTH     (1 << 7)
#define TSI108_STAT_CARRY1_RXRUNT       (1 << 4)
#define TSI108_STAT_CARRY1_RXJUMBO      (1 << 3)
#define TSI108_STAT_CARRY1_RXFRAG       (1 << 2)
#define TSI108_STAT_CARRY1_RXJABBER     (1 << 1)
#define TSI108_STAT_CARRY1_RXDROP       (1 << 0)

#define TSI108_STAT_CARRY2              (0x104)
#define TSI108_STAT_CARRY2_TXBYTES      (1 << 13)
#define TSI108_STAT_CARRY2_TXPKTS       (1 << 12)
#define TSI108_STAT_CARRY2_TXEXDEF      (1 << 7)
#define TSI108_STAT_CARRY2_TXEXCOL      (1 << 3)
#define TSI108_STAT_CARRY2_TXTCOL       (1 << 2)
#define TSI108_STAT_CARRY2_TXPAUSE      (1 << 0)

#define TSI108_STAT_CARRYMASK1          (0x108)
#define TSI108_STAT_CARRYMASK2          (0x10c)

#define TSI108_EC_PORTCTRL              (0x200)
#define TSI108_EC_PORTCTRL_STATRST      (1 << 31)
#define TSI108_EC_PORTCTRL_STATEN       (1 << 28)
#define TSI108_EC_PORTCTRL_NOGIG        (1 << 18)
#define TSI108_EC_PORTCTRL_HALFDUPLEX   (1 << 16)

#define TSI108_EC_INTSTAT               (0x204)
#define TSI108_EC_INTMASK               (0x208)

#define TSI108_INT_ANY                  (1 << 31)
#define TSI108_INT_SFN                  (1 << 30)
#define TSI108_INT_RXIDLE               (1 << 29)
#define TSI108_INT_RXABORT              (1 << 28)
#define TSI108_INT_RXERROR              (1 << 27)
#define TSI108_INT_RXOVERRUN            (1 << 26)
#define TSI108_INT_RXTHRESH             (1 << 25)
#define TSI108_INT_RXWAIT               (1 << 24)
#define TSI108_INT_RXQUEUE0             (1 << 16)
#define TSI108_INT_STATCARRY            (1 << 15)
#define TSI108_INT_TXIDLE               (1 << 13)
#define TSI108_INT_TXABORT              (1 << 12)
#define TSI108_INT_TXERROR              (1 << 11)
#define TSI108_INT_TXUNDERRUN           (1 << 10)
#define TSI108_INT_TXTHRESH             (1 <<  9)
#define TSI108_INT_TXWAIT               (1 <<  8)
#define TSI108_INT_TXQUEUE0             (1 <<  0)

#define TSI108_EC_TXCFG                 (0x220)
#define TSI108_EC_TXCFG_RST             (1 << 31)

#define TSI108_EC_TXCTRL                (0x224)
#define TSI108_EC_TXCTRL_IDLEINT        (1 << 31)
#define TSI108_EC_TXCTRL_ABORT          (1 << 30)
#define TSI108_EC_TXCTRL_GO             (1 << 15)
#define TSI108_EC_TXCTRL_QUEUE0         (1 <<  0)

#define TSI108_EC_TXSTAT                (0x228)
#define TSI108_EC_TXSTAT_ACTIVE         (1 << 15)
#define TSI108_EC_TXSTAT_QUEUE0         (1 << 0)

#define TSI108_EC_TXESTAT               (0x22c)
#define TSI108_EC_TXESTAT_Q0_ERR        (1 << 24)
#define TSI108_EC_TXESTAT_Q0_DESCINT    (1 << 16)
#define TSI108_EC_TXESTAT_Q0_EOF        (1 <<  8)
#define TSI108_EC_TXESTAT_Q0_EOQ        (1 <<  0)

#define TSI108_EC_TXERR                 (0x278)

#define TSI108_EC_TXQ_CFG               (0x280)
#define TSI108_EC_TXQ_CFG_DESC_INT      (1 << 20)
#define TSI108_EC_TXQ_CFG_EOQ_OWN_INT   (1 << 19)
#define TSI108_EC_TXQ_CFG_WSWP          (1 << 11)
#define TSI108_EC_TXQ_CFG_BSWP          (1 << 10)
#define TSI108_EC_TXQ_CFG_SFNPORT       0

#define TSI108_EC_TXQ_BUFCFG            (0x284)
#define TSI108_EC_TXQ_BUFCFG_BURST8     (0 << 8)
#define TSI108_EC_TXQ_BUFCFG_BURST32    (1 << 8)
#define TSI108_EC_TXQ_BUFCFG_BURST128   (2 << 8)
#define TSI108_EC_TXQ_BUFCFG_BURST256   (3 << 8)
#define TSI108_EC_TXQ_BUFCFG_WSWP       (1 << 11)
#define TSI108_EC_TXQ_BUFCFG_BSWP       (1 << 10)
#define TSI108_EC_TXQ_BUFCFG_SFNPORT    0

#define TSI108_EC_TXQ_PTRLOW            (0x288)

#define TSI108_EC_TXQ_PTRHIGH           (0x28c)
#define TSI108_EC_TXQ_PTRHIGH_VALID     (1 << 31)

#define TSI108_EC_TXTHRESH              (0x230)
#define TSI108_EC_TXTHRESH_STARTFILL    0
#define TSI108_EC_TXTHRESH_STOPFILL     16

#define TSI108_EC_RXCFG                 (0x320)
#define TSI108_EC_RXCFG_RST             (1 << 31)

#define TSI108_EC_RXSTAT                (0x328)
#define TSI108_EC_RXSTAT_ACTIVE         (1 << 15)
#define TSI108_EC_RXSTAT_QUEUE0         (1 << 0)

#define TSI108_EC_RXESTAT               (0x32c)
#define TSI108_EC_RXESTAT_Q0_ERR        (1 << 24)
#define TSI108_EC_RXESTAT_Q0_DESCINT    (1 << 16)
#define TSI108_EC_RXESTAT_Q0_EOF        (1 <<  8)
#define TSI108_EC_RXESTAT_Q0_EOQ        (1 <<  0)

#define TSI108_EC_HASHADDR              (0x360)
#define TSI108_EC_HASHADDR_AUTOINC      (1 << 31)
#define TSI108_EC_HASHADDR_DO1STREAD    (1 << 30)
#define TSI108_EC_HASHADDR_UNICAST      (0 <<  4)
#define TSI108_EC_HASHADDR_MCAST        (1 <<  4)

#define TSI108_EC_HASHDATA              (0x364)

#define TSI108_EC_RXQ_PTRLOW            (0x388)

#define TSI108_EC_RXQ_PTRHIGH           (0x38c)
#define TSI108_EC_RXQ_PTRHIGH_VALID     (1 << 31)

/* Station Enable -- accept packets destined for us */
#define TSI108_EC_RXCFG_SE              (1 << 13)
/* Unicast Frame Enable -- for packets not destined for us */
#define TSI108_EC_RXCFG_UFE             (1 << 12)
/* Multicast Frame Enable */
#define TSI108_EC_RXCFG_MFE             (1 << 11)
/* Broadcast Frame Enable */
#define TSI108_EC_RXCFG_BFE             (1 << 10)
#define TSI108_EC_RXCFG_UC_HASH         (1 <<  9)
#define TSI108_EC_RXCFG_MC_HASH         (1 <<  8)

#define TSI108_EC_RXQ_CFG               (0x380)
#define TSI108_EC_RXQ_CFG_DESC_INT      (1 << 20)
#define TSI108_EC_RXQ_CFG_EOQ_OWN_INT   (1 << 19)
#define TSI108_EC_RXQ_CFG_WSWP          (1 << 11)
#define TSI108_EC_RXQ_CFG_BSWP          (1 << 10)
#define TSI108_EC_RXQ_CFG_SFNPORT       0

#define TSI108_EC_RXQ_BUFCFG            (0x384)
#define TSI108_EC_RXQ_BUFCFG_BURST8     (0 << 8)
#define TSI108_EC_RXQ_BUFCFG_BURST32    (1 << 8)
#define TSI108_EC_RXQ_BUFCFG_BURST128   (2 << 8)
#define TSI108_EC_RXQ_BUFCFG_BURST256   (3 << 8)
#define TSI108_EC_RXQ_BUFCFG_WSWP       (1 << 11)
#define TSI108_EC_RXQ_BUFCFG_BSWP       (1 << 10)
#define TSI108_EC_RXQ_BUFCFG_SFNPORT    0

#define TSI108_EC_RXCTRL                (0x324)
#define TSI108_EC_RXCTRL_ABORT          (1 << 30)
#define TSI108_EC_RXCTRL_GO             (1 << 15)
#define TSI108_EC_RXCTRL_QUEUE0         (1 << 0)

#define TSI108_EC_RXERR                 (0x378)

#define TSI108_TX_EOF   (1 << 0)        /* End of frame; last fragment of packet */
#define TSI108_TX_SOF   (1 << 1)        /* Start of frame; first frag. of packet */
#define TSI108_TX_VLAN  (1 << 2)        /* Per-frame VLAN: enables VLAN override */
#define TSI108_TX_HUGE  (1 << 3)        /* Huge frame enable */
#define TSI108_TX_PAD   (1 << 4)        /* Pad the packet if too short */
#define TSI108_TX_CRC   (1 << 5)        /* Generate CRC for this packet */
#define TSI108_TX_INT   (1 << 14)       /* Generate an IRQ after frag. processed */
#define TSI108_TX_RETRY (0xf << 16)     /* 4 bit field indicating num. of retries */
#define TSI108_TX_COL   (1 << 20)       /* Set if a collision occurred */
#define TSI108_TX_LCOL  (1 << 24)       /* Set if a late collision occurred */
#define TSI108_TX_UNDER (1 << 25)       /* Set if a FIFO underrun occurred */
#define TSI108_TX_RLIM  (1 << 26)       /* Set if the retry limit was reached */
#define TSI108_TX_OK    (1 << 30)       /* Set if the frame TX was successful */
#define TSI108_TX_OWN   (1 << 31)       /* Set if the device owns the descriptor */

/* Note: the descriptor layouts assume big-endian byte order. */
typedef struct {
        u32 buf0;
        u32 buf1;               /* Base address of buffer */
        u32 next0;              /* Address of next descriptor, if any */
        u32 next1;
        u16 vlan;               /* VLAN, if override enabled for this packet */
        u16 len;                /* Length of buffer in bytes */
        u32 misc;               /* See TSI108_TX_* above */
        u32 reserved0;          /*reserved0 and reserved1 are added to make the desc */
        u32 reserved1;          /* 32-byte aligned */
} __attribute__ ((aligned(32))) tx_desc;

#define TSI108_RX_EOF   (1 << 0)        /* End of frame; last fragment of packet */
#define TSI108_RX_SOF   (1 << 1)        /* Start of frame; first frag. of packet */
#define TSI108_RX_VLAN  (1 << 2)        /* Set on SOF if packet has a VLAN */
#define TSI108_RX_FTYPE (1 << 3)        /* Length/Type field is type, not length */
#define TSI108_RX_RUNT  (1 << 4)/* Packet is less than minimum size */
#define TSI108_RX_HASH  (1 << 7)/* Hash table match */
#define TSI108_RX_BAD   (1 << 8)        /* Bad frame */
#define TSI108_RX_OVER  (1 << 9)        /* FIFO overrun occurred */
#define TSI108_RX_TRUNC (1 << 11)       /* Packet truncated due to excess length */
#define TSI108_RX_CRC   (1 << 12)       /* Packet had a CRC error */
#define TSI108_RX_INT   (1 << 13)       /* Generate an IRQ after frag. processed */
#define TSI108_RX_OWN   (1 << 15)       /* Set if the device owns the descriptor */

#define TSI108_RX_SKB_SIZE 1536         /* The RX skb length */

typedef struct {
        u32 buf0;               /* Base address of buffer */
        u32 buf1;               /* Base address of buffer */
        u32 next0;              /* Address of next descriptor, if any */
        u32 next1;              /* Address of next descriptor, if any */
        u16 vlan;               /* VLAN of received packet, first frag only */
        u16 len;                /* Length of received fragment in bytes */
        u16 blen;               /* Length of buffer in bytes */
        u16 misc;               /* See TSI108_RX_* above */
        u32 reserved0;          /* reserved0 and reserved1 are added to make the desc */
        u32 reserved1;          /* 32-byte aligned */
} __attribute__ ((aligned(32))) rx_desc;

#endif                          /* __TSI108_ETH_H */