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 * The PHY defines should be in a separate file.
47 /* MII register offsets */
48 #define MII_CONTROL 0x0000
49 #define MII_STATUS 0x0001
50 #define MII_PHY_ID0 0x0002
51 #define MII_PHY_ID1 0x0003
52 #define MII_ANADV 0x0004
53 #define MII_ANLPAR 0x0005
54 #define MII_AEXP 0x0006
55 #define MII_ANEXT 0x0007
56 #define MII_LSI_PHY_CONFIG 0x0011
58 #define MII_LSI_PHY_STAT 0x0012
59 #define MII_AMD_PHY_STAT MII_LSI_PHY_STAT
60 #define MII_INTEL_PHY_STAT 0x0011
62 #define MII_AUX_CNTRL 0x0018
63 /* mii registers specific to AMD 79C901 */
64 #define MII_STATUS_SUMMARY = 0x0018
66 /* MII Control register bit definitions. */
67 #define MII_CNTL_FDX 0x0100
68 #define MII_CNTL_RST_AUTO 0x0200
69 #define MII_CNTL_ISOLATE 0x0400
70 #define MII_CNTL_PWRDWN 0x0800
71 #define MII_CNTL_AUTO 0x1000
72 #define MII_CNTL_F100 0x2000
73 #define MII_CNTL_LPBK 0x4000
74 #define MII_CNTL_RESET 0x8000
76 /* MII Status register bit */
77 #define MII_STAT_EXT 0x0001
78 #define MII_STAT_JAB 0x0002
79 #define MII_STAT_LINK 0x0004
80 #define MII_STAT_CAN_AUTO 0x0008
81 #define MII_STAT_FAULT 0x0010
82 #define MII_STAT_AUTO_DONE 0x0020
83 #define MII_STAT_CAN_T 0x0800
84 #define MII_STAT_CAN_T_FDX 0x1000
85 #define MII_STAT_CAN_TX 0x2000
86 #define MII_STAT_CAN_TX_FDX 0x4000
87 #define MII_STAT_CAN_T4 0x8000
90 #define MII_ID1_OUI_LO 0xFC00 /* low bits of OUI mask */
91 #define MII_ID1_MODEL 0x03F0 /* model number */
92 #define MII_ID1_REV 0x000F /* model number */
94 /* MII NWAY Register Bits ...
95 valid for the ANAR (Auto-Negotiation Advertisement) and
96 ANLPAR (Auto-Negotiation Link Partner) registers */
97 #define MII_NWAY_NODE_SEL 0x001f
98 #define MII_NWAY_CSMA_CD 0x0001
99 #define MII_NWAY_T 0x0020
100 #define MII_NWAY_T_FDX 0x0040
101 #define MII_NWAY_TX 0x0080
102 #define MII_NWAY_TX_FDX 0x0100
103 #define MII_NWAY_T4 0x0200
104 #define MII_NWAY_PAUSE 0x0400
105 #define MII_NWAY_RF 0x2000 /* Remote Fault */
106 #define MII_NWAY_ACK 0x4000 /* Remote Acknowledge */
107 #define MII_NWAY_NP 0x8000 /* Next Page (Enable) */
109 /* mii stsout register bits */
110 #define MII_STSOUT_LINK_FAIL 0x4000
111 #define MII_STSOUT_SPD 0x0080
112 #define MII_STSOUT_DPLX 0x0040
114 /* mii stsics register bits */
115 #define MII_STSICS_SPD 0x8000
116 #define MII_STSICS_DPLX 0x4000
117 #define MII_STSICS_LINKSTS 0x0001
119 /* mii stssum register bits */
120 #define MII_STSSUM_LINK 0x0008
121 #define MII_STSSUM_DPLX 0x0004
122 #define MII_STSSUM_AUTO 0x0002
123 #define MII_STSSUM_SPD 0x0001
125 /* lsi phy status register */
126 #define MII_LSI_PHY_STAT_FDX 0x0040
127 #define MII_LSI_PHY_STAT_SPD 0x0080
129 /* amd phy status register */
130 #define MII_AMD_PHY_STAT_FDX 0x0800
131 #define MII_AMD_PHY_STAT_SPD 0x0400
133 /* intel phy status register */
134 #define MII_INTEL_PHY_STAT_FDX 0x0200
135 #define MII_INTEL_PHY_STAT_SPD 0x4000
137 /* Auxilliary Control/Status Register */
138 #define MII_AUX_FDX 0x0001
139 #define MII_AUX_100 0x0002
140 #define MII_AUX_F100 0x0004
141 #define MII_AUX_ANEG 0x0008
143 typedef struct mii_phy {
144 struct mii_phy * next;
145 struct mii_chip_info * chip_info;
147 u32 *mii_control_reg;
152 int (*phy_init) (struct net_device *, int);
153 int (*phy_reset) (struct net_device *, int);
154 int (*phy_status) (struct net_device *, int, u16 *, u16 *);
158 * Data Buffer Descriptor. Data buffers must be aligned on 32 byte
159 * boundary for both, receive and transmit.
161 typedef struct db_dest {
162 struct db_dest *pnext;
168 * The transmit and receive descriptors are memory
171 typedef struct tx_dma {
178 typedef struct rx_dma {
186 * MAC control registers, memory mapped.
188 typedef struct mac_reg {
202 struct au1000_private {
205 db_dest_t db[NUM_RX_BUFFS+NUM_TX_BUFFS];
206 volatile rx_dma_t *rx_dma_ring[NUM_RX_DMA];
207 volatile tx_dma_t *tx_dma_ring[NUM_TX_DMA];
208 db_dest_t *rx_db_inuse[NUM_RX_DMA];
209 db_dest_t *tx_db_inuse[NUM_TX_DMA];
217 struct phy_ops *phy_ops;
219 /* These variables are just for quick access to certain regs addresses. */
220 volatile mac_reg_t *mac; /* mac registers */
221 volatile u32 *enable; /* address of MAC Enable Register */
223 u32 vaddr; /* virtual address of rx/tx buffers */
224 dma_addr_t dma_addr; /* dma address of rx/tx buffers */
228 u32 intr_work_done; /* number of Rx and Tx pkts processed in the isr */
229 int phy_addr; /* phy address */
230 u32 options; /* User-settable misc. driver options. */
233 struct net_device_stats stats;
234 struct timer_list timer;
235 spinlock_t lock; /* Serialise access to device */