au1000_eth.h
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上传日期:2013-04-10
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文件大小:6k
- /*
- * Alchemy Semi Au1000 ethernet driver include file
- *
- * Author: Pete Popov <ppopov@mvista.com>
- *
- * Copyright 2001 MontaVista Software Inc.
- *
- * This program is free software; you can distribute it and/or modify it
- * under the terms of the GNU General Public License (Version 2) as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- */
- #include <linux/config.h>
- #define NUM_INTERFACES 2
- #define MAC_IOSIZE 0x10000
- #define NUM_RX_DMA 4 /* Au1000 has 4 rx hardware descriptors */
- #define NUM_TX_DMA 4 /* Au1000 has 4 tx hardware descriptors */
- #define NUM_RX_BUFFS 4
- #define NUM_TX_BUFFS 4
- #define MAX_BUF_SIZE 2048
- #define ETH_TX_TIMEOUT HZ/4
- #define MAC_MIN_PKT_SIZE 64
- #if defined(CONFIG_MIPS_PB1000) || defined(CONFIG_MIPS_PB1500) || defined(CONFIG_MIPS_PB1100)
- #define PHY_ADDRESS 0
- #define PHY_CONTROL_DEFAULT 0x3000
- #define PHY_CONTROL_REG_ADDR 0
- #endif
- #define MULTICAST_FILTER_LIMIT 64
- /* FIXME
- * The PHY defines should be in a separate file.
- */
- /* MII register offsets */
- #define MII_CONTROL 0x0000
- #define MII_STATUS 0x0001
- #define MII_PHY_ID0 0x0002
- #define MII_PHY_ID1 0x0003
- #define MII_ANADV 0x0004
- #define MII_ANLPAR 0x0005
- #define MII_AEXP 0x0006
- #define MII_ANEXT 0x0007
- #define MII_LSI_CONFIG 0x0011
- #define MII_LSI_STAT 0x0012
- #define MII_AUX_CNTRL 0x0018
- #define MII_INT 0x001A
- /* mii registers specific to AMD 79C901 */
- #define MII_STATUS_SUMMARY = 0x0018
- /* MII Control register bit definitions. */
- #define MII_CNTL_FDX 0x0100
- #define MII_CNTL_RST_AUTO 0x0200
- #define MII_CNTL_ISOLATE 0x0400
- #define MII_CNTL_PWRDWN 0x0800
- #define MII_CNTL_AUTO 0x1000
- #define MII_CNTL_F100 0x2000
- #define MII_CNTL_LPBK 0x4000
- #define MII_CNTL_RESET 0x8000
- /* MII Status register bit */
- #define MII_STAT_EXT 0x0001
- #define MII_STAT_JAB 0x0002
- #define MII_STAT_LINK 0x0004
- #define MII_STAT_CAN_AUTO 0x0008
- #define MII_STAT_FAULT 0x0010
- #define MII_STAT_AUTO_DONE 0x0020
- #define MII_STAT_CAN_T 0x0800
- #define MII_STAT_CAN_T_FDX 0x1000
- #define MII_STAT_CAN_TX 0x2000
- #define MII_STAT_CAN_TX_FDX 0x4000
- #define MII_STAT_CAN_T4 0x8000
- #define MII_ID1_OUI_LO 0xFC00 /* low bits of OUI mask */
- #define MII_ID1_MODEL 0x03F0 /* model number */
- #define MII_ID1_REV 0x000F /* model number */
- /* MII NWAY Register Bits ...
- valid for the ANAR (Auto-Negotiation Advertisement) and
- ANLPAR (Auto-Negotiation Link Partner) registers */
- #define MII_NWAY_NODE_SEL 0x001f
- #define MII_NWAY_CSMA_CD 0x0001
- #define MII_NWAY_T 0x0020
- #define MII_NWAY_T_FDX 0x0040
- #define MII_NWAY_TX 0x0080
- #define MII_NWAY_TX_FDX 0x0100
- #define MII_NWAY_T4 0x0200
- #define MII_NWAY_PAUSE 0x0400
- #define MII_NWAY_RF 0x2000 /* Remote Fault */
- #define MII_NWAY_ACK 0x4000 /* Remote Acknowledge */
- #define MII_NWAY_NP 0x8000 /* Next Page (Enable) */
- /* mii stsout register bits */
- #define MII_STSOUT_LINK_FAIL 0x4000
- #define MII_STSOUT_SPD 0x0080
- #define MII_STSOUT_DPLX 0x0040
- /* mii stsics register bits */
- #define MII_STSICS_SPD 0x8000
- #define MII_STSICS_DPLX 0x4000
- #define MII_STSICS_LINKSTS 0x0001
- /* mii stssum register bits */
- #define MII_STSSUM_LINK 0x0008
- #define MII_STSSUM_DPLX 0x0004
- #define MII_STSSUM_AUTO 0x0002
- #define MII_STSSUM_SPD 0x0001
- /* lsi status register */
- #define MII_LSI_STAT_FDX 0x0040
- #define MII_LSI_STAT_SPD 0x0080
- /* Auxilliary Control/Status Register */
- #define MII_AUX_FDX 0x0001
- #define MII_AUX_100 0x0002
- #define MII_AUX_F100 0x0004
- #define MII_AUX_ANEG 0x0008
- #define MII_FDX_LED 0x8000
- typedef struct mii_phy {
- struct mii_phy * next;
- struct mii_chip_info * chip_info;
- int phy_addr;
- u16 status;
- } mii_phy_t;
- struct phy_ops {
- int (*phy_init) (struct net_device *, int);
- int (*phy_reset) (struct net_device *, int);
- int (*phy_status) (struct net_device *, int, u16 *, u16 *);
- };
- /*
- * Data Buffer Descriptor. Data buffers must be aligned on 32 byte
- * boundary for both, receive and transmit.
- */
- typedef struct db_dest {
- struct db_dest *pnext;
- volatile u32 *vaddr;
- dma_addr_t dma_addr;
- } db_dest_t;
- /*
- * The transmit and receive descriptors are memory
- * mapped registers.
- */
- typedef struct tx_dma {
- u32 status;
- u32 buff_stat;
- u32 len;
- u32 pad;
- } tx_dma_t;
- typedef struct rx_dma {
- u32 status;
- u32 buff_stat;
- u32 pad[2];
- } rx_dma_t;
- /*
- * MAC control registers, memory mapped.
- */
- typedef struct mac_reg {
- u32 control;
- u32 mac_addr_high;
- u32 mac_addr_low;
- u32 multi_hash_high;
- u32 multi_hash_low;
- u32 mii_control;
- u32 mii_data;
- u32 flow_control;
- u32 vlan1_tag;
- u32 vlan2_tag;
- } mac_reg_t;
- struct au1000_private {
-
- db_dest_t *pDBfree;
- db_dest_t db[NUM_RX_BUFFS+NUM_TX_BUFFS];
- volatile rx_dma_t *rx_dma_ring[NUM_RX_DMA];
- volatile tx_dma_t *tx_dma_ring[NUM_TX_DMA];
- db_dest_t *rx_db_inuse[NUM_RX_DMA];
- db_dest_t *tx_db_inuse[NUM_TX_DMA];
- u32 rx_head;
- u32 tx_head;
- u32 tx_tail;
- u32 tx_full;
- mii_phy_t *mii;
- struct phy_ops *phy_ops;
-
- /* These variables are just for quick access to certain regs addresses. */
- volatile mac_reg_t *mac; /* mac registers */
- volatile u32 *enable; /* address of MAC Enable Register */
- u32 vaddr; /* virtual address of rx/tx buffers */
- dma_addr_t dma_addr; /* dma address of rx/tx buffers */
- u8 *hash_table;
- u32 hash_mode;
- u32 intr_work_done; /* number of Rx and Tx pkts processed in the isr */
- u32 phy_addr; /* PHY address */
- u32 options; /* User-settable misc. driver options. */
- u32 drv_flags;
- struct net_device_stats stats;
- struct timer_list timer;
- spinlock_t lock; /* Serialise access to device */
- };