1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
236 lines
6.3 KiB
C
236 lines
6.3 KiB
C
/*
|
|
*
|
|
* Alchemy Au1x00 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.
|
|
*
|
|
* ########################################################################
|
|
*
|
|
*
|
|
*/
|
|
|
|
|
|
#define MAC_IOSIZE 0x10000
|
|
#define NUM_RX_DMA 4 /* Au1x00 has 4 rx hardware descriptors */
|
|
#define NUM_TX_DMA 4 /* Au1x00 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
|
|
|
|
#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_PHY_CONFIG 0x0011
|
|
/* Status register */
|
|
#define MII_LSI_PHY_STAT 0x0012
|
|
#define MII_AMD_PHY_STAT MII_LSI_PHY_STAT
|
|
#define MII_INTEL_PHY_STAT 0x0011
|
|
|
|
#define MII_AUX_CNTRL 0x0018
|
|
/* 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 phy status register */
|
|
#define MII_LSI_PHY_STAT_FDX 0x0040
|
|
#define MII_LSI_PHY_STAT_SPD 0x0080
|
|
|
|
/* amd phy status register */
|
|
#define MII_AMD_PHY_STAT_FDX 0x0800
|
|
#define MII_AMD_PHY_STAT_SPD 0x0400
|
|
|
|
/* intel phy status register */
|
|
#define MII_INTEL_PHY_STAT_FDX 0x0200
|
|
#define MII_INTEL_PHY_STAT_SPD 0x4000
|
|
|
|
/* Auxilliary Control/Status Register */
|
|
#define MII_AUX_FDX 0x0001
|
|
#define MII_AUX_100 0x0002
|
|
#define MII_AUX_F100 0x0004
|
|
#define MII_AUX_ANEG 0x0008
|
|
|
|
typedef struct mii_phy {
|
|
struct mii_phy * next;
|
|
struct mii_chip_info * chip_info;
|
|
u16 status;
|
|
u32 *mii_control_reg;
|
|
u32 *mii_data_reg;
|
|
} 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;
|
|
|
|
int mac_id;
|
|
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 */
|
|
int phy_addr; /* phy address */
|
|
u32 options; /* User-settable misc. driver options. */
|
|
u32 drv_flags;
|
|
int want_autoneg;
|
|
struct net_device_stats stats;
|
|
struct timer_list timer;
|
|
spinlock_t lock; /* Serialise access to device */
|
|
};
|