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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 *
4 * Alchemy Au1x00 ethernet driver include file
5 *
6 * Author: Pete Popov <ppopov@mvista.com>
7 *
8 * Copyright 2001 MontaVista Software Inc.
9 */
10
11
12#define MAC_IOSIZE 0x10000
13#define NUM_RX_DMA 4 /* Au1x00 has 4 rx hardware descriptors */
14#define NUM_TX_DMA 4 /* Au1x00 has 4 tx hardware descriptors */
15
16#define NUM_RX_BUFFS 4
17#define NUM_TX_BUFFS 4
18#define MAX_BUF_SIZE 2048
19
20#define ETH_TX_TIMEOUT (HZ/4)
21#define MAC_MIN_PKT_SIZE 64
22
23#define MULTICAST_FILTER_LIMIT 64
24
25/*
26 * Data Buffer Descriptor. Data buffers must be aligned on 32 byte
27 * boundary for both, receive and transmit.
28 */
29struct db_dest {
30 struct db_dest *pnext;
31 u32 *vaddr;
32 dma_addr_t dma_addr;
33};
34
35/*
36 * The transmit and receive descriptors are memory
37 * mapped registers.
38 */
39struct tx_dma {
40 u32 status;
41 u32 buff_stat;
42 u32 len;
43 u32 pad;
44};
45
46struct rx_dma {
47 u32 status;
48 u32 buff_stat;
49 u32 pad[2];
50};
51
52
53/*
54 * MAC control registers, memory mapped.
55 */
56struct mac_reg {
57 u32 control;
58 u32 mac_addr_high;
59 u32 mac_addr_low;
60 u32 multi_hash_high;
61 u32 multi_hash_low;
62 u32 mii_control;
63 u32 mii_data;
64 u32 flow_control;
65 u32 vlan1_tag;
66 u32 vlan2_tag;
67};
68
69
70struct au1000_private {
71 struct db_dest *pDBfree;
72 struct db_dest db[NUM_RX_BUFFS+NUM_TX_BUFFS];
73 struct rx_dma *rx_dma_ring[NUM_RX_DMA];
74 struct tx_dma *tx_dma_ring[NUM_TX_DMA];
75 struct db_dest *rx_db_inuse[NUM_RX_DMA];
76 struct db_dest *tx_db_inuse[NUM_TX_DMA];
77 u32 rx_head;
78 u32 tx_head;
79 u32 tx_tail;
80 u32 tx_full;
81
82 int mac_id;
83
84 int mac_enabled; /* whether MAC is currently enabled and running
85 * (req. for mdio)
86 */
87
88 int old_link; /* used by au1000_adjust_link */
89 int old_speed;
90 int old_duplex;
91
92 struct mii_bus *mii_bus;
93
94 /* PHY configuration */
95 int phy_static_config;
96 int phy_search_highest_addr;
97 int phy1_search_mac0;
98
99 int phy_addr;
100 int phy_busid;
101 int phy_irq;
102
103 /* These variables are just for quick access
104 * to certain regs addresses.
105 */
106 struct mac_reg *mac; /* mac registers */
107 u32 *enable; /* address of MAC Enable Register */
108 void __iomem *macdma; /* base of MAC DMA port */
109 void *vaddr; /* virtual address of rx/tx buffers */
110 dma_addr_t dma_addr; /* dma address of rx/tx buffers */
111
112 spinlock_t lock; /* Serialise access to device */
113
114 u32 msg_enable;
115};
1/*
2 *
3 * Alchemy Au1x00 ethernet driver include file
4 *
5 * Author: Pete Popov <ppopov@mvista.com>
6 *
7 * Copyright 2001 MontaVista Software Inc.
8 *
9 * ########################################################################
10 *
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.
14 *
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
18 * for more details.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, see <http://www.gnu.org/licenses/>.
22 *
23 * ########################################################################
24 *
25 *
26 */
27
28
29#define MAC_IOSIZE 0x10000
30#define NUM_RX_DMA 4 /* Au1x00 has 4 rx hardware descriptors */
31#define NUM_TX_DMA 4 /* Au1x00 has 4 tx hardware descriptors */
32
33#define NUM_RX_BUFFS 4
34#define NUM_TX_BUFFS 4
35#define MAX_BUF_SIZE 2048
36
37#define ETH_TX_TIMEOUT (HZ/4)
38#define MAC_MIN_PKT_SIZE 64
39
40#define MULTICAST_FILTER_LIMIT 64
41
42/*
43 * Data Buffer Descriptor. Data buffers must be aligned on 32 byte
44 * boundary for both, receive and transmit.
45 */
46struct db_dest {
47 struct db_dest *pnext;
48 u32 *vaddr;
49 dma_addr_t dma_addr;
50};
51
52/*
53 * The transmit and receive descriptors are memory
54 * mapped registers.
55 */
56struct tx_dma {
57 u32 status;
58 u32 buff_stat;
59 u32 len;
60 u32 pad;
61};
62
63struct rx_dma {
64 u32 status;
65 u32 buff_stat;
66 u32 pad[2];
67};
68
69
70/*
71 * MAC control registers, memory mapped.
72 */
73struct mac_reg {
74 u32 control;
75 u32 mac_addr_high;
76 u32 mac_addr_low;
77 u32 multi_hash_high;
78 u32 multi_hash_low;
79 u32 mii_control;
80 u32 mii_data;
81 u32 flow_control;
82 u32 vlan1_tag;
83 u32 vlan2_tag;
84};
85
86
87struct au1000_private {
88 struct db_dest *pDBfree;
89 struct db_dest db[NUM_RX_BUFFS+NUM_TX_BUFFS];
90 struct rx_dma *rx_dma_ring[NUM_RX_DMA];
91 struct tx_dma *tx_dma_ring[NUM_TX_DMA];
92 struct db_dest *rx_db_inuse[NUM_RX_DMA];
93 struct db_dest *tx_db_inuse[NUM_TX_DMA];
94 u32 rx_head;
95 u32 tx_head;
96 u32 tx_tail;
97 u32 tx_full;
98
99 int mac_id;
100
101 int mac_enabled; /* whether MAC is currently enabled and running
102 * (req. for mdio)
103 */
104
105 int old_link; /* used by au1000_adjust_link */
106 int old_speed;
107 int old_duplex;
108
109 struct phy_device *phy_dev;
110 struct mii_bus *mii_bus;
111
112 /* PHY configuration */
113 int phy_static_config;
114 int phy_search_highest_addr;
115 int phy1_search_mac0;
116
117 int phy_addr;
118 int phy_busid;
119 int phy_irq;
120
121 /* These variables are just for quick access
122 * to certain regs addresses.
123 */
124 struct mac_reg *mac; /* mac registers */
125 u32 *enable; /* address of MAC Enable Register */
126 void __iomem *macdma; /* base of MAC DMA port */
127 u32 vaddr; /* virtual address of rx/tx buffers */
128 dma_addr_t dma_addr; /* dma address of rx/tx buffers */
129
130 spinlock_t lock; /* Serialise access to device */
131
132 u32 msg_enable;
133};