3 * Alchemy Au1x00 ethernet driver include file
5 * Author: Pete Popov <ppopov@mvista.com>
7 * Copyright 2001 MontaVista Software Inc.
9 * ########################################################################
11 * This program is free software; you can distribute it and/or modify it
12 * under the terms of the GNU General Public License (Version 2) as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
24 * ########################################################################
30 #define MAC_IOSIZE 0x10000
31 #define NUM_RX_DMA 4 /* Au1x00 has 4 rx hardware descriptors */
32 #define NUM_TX_DMA 4 /* Au1x00 has 4 tx hardware descriptors */
34 #define NUM_RX_BUFFS 4
35 #define NUM_TX_BUFFS 4
36 #define MAX_BUF_SIZE 2048
38 #define ETH_TX_TIMEOUT HZ/4
39 #define MAC_MIN_PKT_SIZE 64
41 #define MULTICAST_FILTER_LIMIT 64
44 * Data Buffer Descriptor. Data buffers must be aligned on 32 byte
45 * boundary for both, receive and transmit.
47 typedef struct db_dest
{
48 struct db_dest
*pnext
;
54 * The transmit and receive descriptors are memory
57 typedef struct tx_dma
{
64 typedef struct rx_dma
{
72 * MAC control registers, memory mapped.
74 typedef struct mac_reg
{
88 struct au1000_private
{
90 db_dest_t db
[NUM_RX_BUFFS
+NUM_TX_BUFFS
];
91 volatile rx_dma_t
*rx_dma_ring
[NUM_RX_DMA
];
92 volatile tx_dma_t
*tx_dma_ring
[NUM_TX_DMA
];
93 db_dest_t
*rx_db_inuse
[NUM_RX_DMA
];
94 db_dest_t
*tx_db_inuse
[NUM_TX_DMA
];
102 int mac_enabled
; /* whether MAC is currently enabled and running (req. for mdio) */
104 int old_link
; /* used by au1000_adjust_link */
108 struct phy_device
*phy_dev
;
109 struct mii_bus mii_bus
;
111 /* These variables are just for quick access to certain regs addresses. */
112 volatile mac_reg_t
*mac
; /* mac registers */
113 volatile u32
*enable
; /* address of MAC Enable Register */
115 u32 vaddr
; /* virtual address of rx/tx buffers */
116 dma_addr_t dma_addr
; /* dma address of rx/tx buffers */
118 spinlock_t lock
; /* Serialise access to device */
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