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Kristoffer Glembod4c41132010-02-15 03:33:44 +00001#ifndef GRETH_H
2#define GRETH_H
3
4#include <linux/phy.h>
5
6/* Register bits and masks */
7#define GRETH_RESET 0x40
8#define GRETH_MII_BUSY 0x8
9#define GRETH_MII_NVALID 0x10
10
11#define GRETH_CTRL_FD 0x10
12#define GRETH_CTRL_PR 0x20
13#define GRETH_CTRL_SP 0x80
14#define GRETH_CTRL_GB 0x100
15#define GRETH_CTRL_PSTATIEN 0x400
16#define GRETH_CTRL_MCEN 0x800
17#define GRETH_CTRL_DISDUPLEX 0x1000
18#define GRETH_STATUS_PHYSTAT 0x100
19
20#define GRETH_BD_EN 0x800
21#define GRETH_BD_WR 0x1000
22#define GRETH_BD_IE 0x2000
23#define GRETH_BD_LEN 0x7FF
24
25#define GRETH_TXEN 0x1
Daniel Hellstrom1ca23432011-01-14 03:02:42 +000026#define GRETH_INT_TE 0x2
Kristoffer Glembod4c41132010-02-15 03:33:44 +000027#define GRETH_INT_TX 0x8
28#define GRETH_TXI 0x4
29#define GRETH_TXBD_STATUS 0x0001C000
30#define GRETH_TXBD_MORE 0x20000
31#define GRETH_TXBD_IPCS 0x40000
32#define GRETH_TXBD_TCPCS 0x80000
33#define GRETH_TXBD_UDPCS 0x100000
34#define GRETH_TXBD_CSALL (GRETH_TXBD_IPCS | GRETH_TXBD_TCPCS | GRETH_TXBD_UDPCS)
35#define GRETH_TXBD_ERR_LC 0x10000
36#define GRETH_TXBD_ERR_UE 0x4000
37#define GRETH_TXBD_ERR_AL 0x8000
38
Daniel Hellstrom1ca23432011-01-14 03:02:42 +000039#define GRETH_INT_RE 0x1
Kristoffer Glembod4c41132010-02-15 03:33:44 +000040#define GRETH_INT_RX 0x4
41#define GRETH_RXEN 0x2
42#define GRETH_RXI 0x8
43#define GRETH_RXBD_STATUS 0xFFFFC000
44#define GRETH_RXBD_ERR_AE 0x4000
45#define GRETH_RXBD_ERR_FT 0x8000
46#define GRETH_RXBD_ERR_CRC 0x10000
47#define GRETH_RXBD_ERR_OE 0x20000
48#define GRETH_RXBD_ERR_LE 0x40000
49#define GRETH_RXBD_IP 0x80000
50#define GRETH_RXBD_IP_CSERR 0x100000
51#define GRETH_RXBD_UDP 0x200000
52#define GRETH_RXBD_UDP_CSERR 0x400000
53#define GRETH_RXBD_TCP 0x800000
54#define GRETH_RXBD_TCP_CSERR 0x1000000
55#define GRETH_RXBD_IP_FRAG 0x2000000
56#define GRETH_RXBD_MCAST 0x4000000
57
58/* Descriptor parameters */
59#define GRETH_TXBD_NUM 128
60#define GRETH_TXBD_NUM_MASK (GRETH_TXBD_NUM-1)
61#define GRETH_TX_BUF_SIZE 2048
62#define GRETH_RXBD_NUM 128
63#define GRETH_RXBD_NUM_MASK (GRETH_RXBD_NUM-1)
64#define GRETH_RX_BUF_SIZE 2048
65
66/* Buffers per page */
67#define GRETH_RX_BUF_PPGAE (PAGE_SIZE/GRETH_RX_BUF_SIZE)
68#define GRETH_TX_BUF_PPGAE (PAGE_SIZE/GRETH_TX_BUF_SIZE)
69
70/* How many pages are needed for buffers */
71#define GRETH_RX_BUF_PAGE_NUM (GRETH_RXBD_NUM/GRETH_RX_BUF_PPGAE)
72#define GRETH_TX_BUF_PAGE_NUM (GRETH_TXBD_NUM/GRETH_TX_BUF_PPGAE)
73
74/* Buffer size.
75 * Gbit MAC uses tagged maximum frame size which is 1518 excluding CRC.
76 * Set to 1520 to make all buffers word aligned for non-gbit MAC.
77 */
78#define MAX_FRAME_SIZE 1520
79
80/* Flags */
81#define GRETH_FLAG_RX_CSUM 0x1
82
83/* GRETH APB registers */
84struct greth_regs {
85 u32 control;
86 u32 status;
87 u32 esa_msb;
88 u32 esa_lsb;
89 u32 mdio;
90 u32 tx_desc_p;
91 u32 rx_desc_p;
92 u32 edclip;
93 u32 hash_msb;
94 u32 hash_lsb;
95};
96
97/* GRETH buffer descriptor */
98struct greth_bd {
99 u32 stat;
100 u32 addr;
101};
102
103struct greth_private {
104 struct sk_buff *rx_skbuff[GRETH_RXBD_NUM];
105 struct sk_buff *tx_skbuff[GRETH_TXBD_NUM];
106
107 unsigned char *tx_bufs[GRETH_TXBD_NUM];
108 unsigned char *rx_bufs[GRETH_RXBD_NUM];
109
110 u16 tx_next;
111 u16 tx_last;
112 u16 tx_free;
113 u16 rx_cur;
114
115 struct greth_regs *regs; /* Address of controller registers. */
116 struct greth_bd *rx_bd_base; /* Address of Rx BDs. */
117 struct greth_bd *tx_bd_base; /* Address of Tx BDs. */
118 dma_addr_t rx_bd_base_phys;
119 dma_addr_t tx_bd_base_phys;
120
121 int irq;
122
Grant Likely2dc11582010-08-06 09:25:50 -0600123 struct device *dev; /* Pointer to platform_device->dev */
Kristoffer Glembod4c41132010-02-15 03:33:44 +0000124 struct net_device *netdev;
125 struct napi_struct napi;
126 spinlock_t devlock;
127
128 struct phy_device *phy;
129 struct mii_bus *mdio;
130 int mdio_irqs[PHY_MAX_ADDR];
131 unsigned int link;
132 unsigned int speed;
133 unsigned int duplex;
134
135 u32 msg_enable;
136 u32 flags;
137
138 u8 phyaddr;
139 u8 multicast;
140 u8 gbit_mac;
141 u8 mdio_int_en;
142 u8 edcl;
143};
144
145#endif