| blob | 54df5d9a721d94880b69d4c6b6b85c618f79360a |
1 #include <linux/skbuff.h>
2 /*
3 * This file is the define for Moxa CPU MAC controller.
4 *
5 * History:
6 * Date Author Comment
7 * 06-15-2005 Victor Yu. Create it.
8 */
9 #ifndef _MOXACPU_MAC_H
10 #define _MOXACPU_MAC_H
12 typedef struct tx_desc_struct {
13 // TXDES0
14 union {
15 unsigned int ui;
16 #define TXDMA_OWN (1<<31)
17 #define TXPKT_EXSCOL (1<<1)
18 #define TXPKT_LATECOL (1<<0)
19 struct {
20 unsigned int TxPktLateCol:1; // is aborted due to late collision
21 unsigned int TxPktExsCol:1; // is aborted after 16 collisions
22 unsigned int Reserved1:29;
23 unsigned int TxDMAOwn:1; // is owned by the MAC controller
24 } ubit;
25 } txdes0;
27 // TXDES1
28 union {
29 unsigned int ui;
30 #define EDOTR (1<<31)
31 #define TXIC (1<<30)
32 #define TX2FIC (1<<29)
33 #define FTS (1<<28)
34 #define LTS (1<<27)
35 #define TXBUF_SIZE_MASK 0x7ff
36 #define TXBUF_SIZE_MAX (TXBUF_SIZE_MASK+1)
37 struct {
38 unsigned int TxBufSize:11; // transmit buffer size in byte
39 unsigned int Reserved2:16;
40 unsigned int Lts:1; // is the last descriptor of a Tx
41 // packet
42 unsigned int Fts:1; // is the first descriptor of a Tx
43 // packet
44 unsigned int Tx2fic:1; // transmit to FIFO interrupt on
45 // completion
46 unsigned int Txic:1; // transmit interrupt on completion
47 unsigned int Edotr:1; // end descriptor of transmit ring
48 } ubit;
49 } txdes1;
51 // TXDES2
52 struct {
53 unsigned int phyTxBufBaseAddr;// transmit buffer physical base address
54 unsigned char *virtTxBufBaseAddr;// transmit buffer virtual base address
55 } txdes2;
56 } tx_desc_t;
58 typedef struct rx_desc_struct {
59 // RXDES0
60 union {
61 unsigned int ui;
62 #define RXDMA_OWN (1<<31)
63 #define FRS (1<<29)
64 #define LRS (1<<28)
65 #define RX_ODD_NB (1<<22)
66 #define RUNT (1<<21)
67 #define FTL (1<<20)
68 #define CRC_ERR (1<<19)
69 #define RX_ERR (1<<18)
70 #define BROADCAST_RXDES0 (1<<17)
71 #define MULTICAST_RXDES0 (1<<16)
72 #define RFL_MASK 0x7ff
73 #define RFL_MAX (RFL_MASK+1)
74 struct {
75 unsigned int RecvFrameLen:11; // receive frame length
76 unsigned int Reserved1:5;
77 unsigned int Multicast:1; // multicast frame
78 unsigned int Broadcast:1; // broadcast frame
79 unsigned int RxErr:1; // receive error
80 unsigned int CRCErr:1; // CRC error
81 unsigned int Ftl:1; // frame too long
82 unsigned int Runt:1; // runt packet, less than 64 bytes
83 unsigned int RxOddNb:1; // receive odd nibbles
84 unsigned int Reserved2:5;
85 unsigned int Lrs:1; // last receive segment descriptor
86 unsigned int Frs:1; // first receive segment descriptor
87 unsigned int Reserved3:1;
88 unsigned int RxDMAOwn:1; // RXDMA onwership
89 } ubit;
90 } rxdes0;
92 // RXDES1
93 union {
94 unsigned int ui;
95 #define EDORR (1<<31)
96 #define RXBUF_SIZE_MASK 0x7ff
97 #define RXBUF_SIZE_MAX (RXBUF_SIZE_MASK+1)
98 struct {
99 unsigned int RxBufSize:11; // receive buffer size
100 unsigned int Reserved4:20;
101 unsigned int Edorr:1; // end descriptor of receive ring
102 } ubit;
103 } rxdes1;
105 // RXDES2
106 struct {
107 unsigned int phyRxBufBaseAddr;// receive buffer physical base address
108 unsigned char *virtRxBufBaseAddr;// receive buffer virtual base address
109 } rxdes2;
110 } rx_desc_t;
112 typedef struct mac_control_reg_struct {
113 unsigned int isr; // interrupt status, 0x0
114 #define RPKT_FINISH (1<<0) // RXDMA has received packets into RX buffer
115 // successfully
116 #define NORXBUF (1<<1) // receive buffer unavailable
117 #define XPKT_FINISH (1<<2) // TXDMA has moved data into the TX FIFO
118 #define NOTXBUF (1<<3) // transmit buffer unavailable
119 #define XPKT_OK_INT_STS (1<<4) // packets transmitted to ethernet successfully
120 #define XPKT_LOST_INT_STS (1<<5) // packets transmitted to ethernet lost due to late
121 // collision or excessive collision
122 #define RPKT_SAV (1<<6) // packets received into RX FIFO successfully
123 #define RPKT_LOST_INT_STS (1<<7) // received packet lost due to RX FIFO full
124 #define AHB_ERR (1<<8) // AHB error
125 #define PHYSTS_CHG (1<<9) // PHY link status change
126 unsigned int imr; // interrupt mask, 0x4
127 #define RPKT_FINISH_M (1<<0) // interrupt mask of ISR[0]
128 #define NORXBUF_M (1<<1) // interrupt mask of ISR[1]
129 #define XPKT_FINISH_M (1<<2) // interrupt mask of ISR[2]
130 #define NOTXBUF_M (1<<3) // interrupt mask of ISR[3]
131 #define XPKT_OK_M (1<<4) // interrupt mask of ISR[4]
132 #define XPKT_LOST_M (1<<5) // interrupt mask of ISR[5]
133 #define RPKT_SAV_M (1<<6) // interrupt mask of ISR[6]
134 #define RPKT_LOST_M (1<<7) // interrupt mask of ISR[7]
135 #define AHB_ERR_M (1<<8) // interrupt mask of ISR[8]
136 #define PHYSTS_CHG_M (1<<9) // interrupt mask of ISR[9]
137 unsigned int mac_madr; // MAC most significant address, 0x8
138 #define MAC_MADR_MASK 0xffff // the most significant 2 bytes of MAC address
139 unsigned int mac_ldar; // MAC least significant address, 0xc
140 unsigned int matht0; // multicast address hash table 0, 0x10
141 unsigned int matht1; // multicast address hash table 1, 0x14
142 unsigned int txpd; // transmit poll demand, 0x18
143 unsigned int rxpd; // receive poll demand, 0x1c
144 unsigned int txr_badr; // transmit ring base address, 0x20
145 unsigned int rxr_badr; // receive ring base address, 0x24
146 unsigned int itc; // interrupt timer control, 0x28
147 #define TXINT_TIME_SEL (1<<15) // defines the period of TX cycle time
148 #define TXINT_THR_MASK (1<<14|1<13|1<12)
149 #define TXINT_CNT_MASK (1<<11|1<<10|1<<9|1<<8)
150 #define RXINT_TIME_SEL (1<<7) // defines the period of RX cycle time
151 #define RXINT_THR_MASK (1<<6|1<<5|1<<4)
152 #define RXINT_CNT_MASK (1<<3|1<<2|1<<1|1<<0)
153 unsigned int aptc; // automatic polling timer control, 0x2c
154 #define TXPOLL_TIME_SEL (1<<12) // defines the period of TX poll time
155 #define TXPOLL_CNT_MASK (1<<11|1<<10|1<<9|1<<8)
156 #define TXPOLL_CNT_SHIFT_BIT 8
157 #define RXPOLL_TIME_SEL (1<<4) // defines the period of RX poll time
158 #define RXPOLL_CNT_MASK (1<<3|1<<2|1<<1|1<<0)
159 #define RXPOLL_CNT_SHIFT_BIT 0
160 unsigned int dblac; // DMA burst length and arbitration control, 0x30
161 #define RX_THR_EN (1<<9) // enable RX FIFO threshold arbitration
162 #define RXFIFO_HTHR_MASK (1<<8|1<<7|1<<6)
163 #define RXFIFO_LTHR_MASK (1<<5|1<<4|1<<3)
164 #define INCR16_EN (1<<2) // use INCR16 burst command in AHB bus
165 #define INCR8_EN (1<<1) // use INCR8 burst command in AHB bus
166 #define INCR4_EN (1<<0) // use INCR4 burst command in AHB bus
167 unsigned int reserved1[21]; // 0x34 - 0x84
168 unsigned int maccr; // MAC control, 0x88
169 #define RX_BROADPKT (1<<17) // receive boradcast packet
170 #define RX_MULTIPKT (1<<16) // receive all multicast packet
171 #define FULLDUP (1<<15) // full duplex
172 #define CRC_APD (1<<14) // append CRC to transmitted packet
173 #define RCV_ALL (1<<12) // not check incoming packet's dest. address
174 #define RX_FTL (1<<11) // store incoming packet even if its length is
175 // great than 1518 bytes
176 #define RX_RUNT (1<<10) // store incoming packet even if its length is
177 // less than 64 bytes
178 #define HT_MULTI_EN (1<<9) // enable storing incoming packet if the packet
179 // passes hash table address filtering and is a
180 // multicast packet
181 #define RCV_EN (1<<8) // receiver enable
182 #define ENRX_IN_HALFTX (1<<6) // enable packet reception when transmitting
183 // packet in half duplex mode
184 #define XMT_EN (1<<5) // transmitter enable
185 #define CRC_DIS (1<<4) // disable CRC check when receiving packets
186 #define LOOP_EN (1<<3) // internal loop-back
187 #define SW_RST (1<<2) // software reset, last 64 AHB bus clocks
188 #define RDMA_EN (1<<1) // enable receive DMA channel
189 #define XDMA_EN (1<<0) // enable transmit DMA channel
190 unsigned int macsr; // MAC status, 0x8c
191 #define COL_EXCEED (1<<11) // collision amount exceeds 16
192 #define LATE_COL (1<<10) // transmitter detects late collision
193 #define XPKT_LOST (1<<9) // packet transmitted to ethernet lost due to late
194 // collision or excessive collision
195 #define XPKT_OK (1<<8) // packets transmitted to ethernet successfully
196 #define RUNT_MAC_STS (1<<7) // receiver detects a runt packet
197 #define FTL_MAC_STS (1<<6) // receiver detects a frame that is too long
198 #define CRC_ERR_MAC_STS (1<<5)
199 #define RPKT_LOST (1<<4) // received packets list due to RX FIFO full
200 #define RPKT_SAVE (1<<3) // packets received into RX FIFO successfully
201 #define COL (1<<2) // incoming packet dropped due to collision
202 #define MCPU_BROADCAST (1<<1)
203 #define MCPU_MULTICAST (1<<0)
204 unsigned int phycr; // PHY control, 0x90
205 #define MIIWR (1<<27) // initialize a write sequence to PHY by setting
206 // this bit to 1. This bit would be auto cleared
207 // after the write operation is finished.
208 #define MIIRD (1<<26)
209 #define REGAD_MASK (1<<25|1<<24|1<<23|1<<22|1<<21)
210 #define PHYAD_MASK (1<<20|1<<19|1<<18|1<<17|1<<16)
211 #define MIIRDATA_MASK 0xffff
212 unsigned int phywdata; // PHY write data, 0x94
213 #define MIIWDATA_MASK 0xffff
214 unsigned int fcr; // flow control, 0x98
215 #define PAUSE_TIME_MASK 0xffff0000
216 #define FC_HIGH_MASK (1<<15|1<<14|1<<13|1<<12)
217 #define FC_LOW_MASK (1<<11|1<<10|1<<9|1<<8)
218 #define RX_PAUSE (1<<4) // receive pause frame
219 #define TXPAUSED (1<<3) // packet transmission is paused due to receive
220 // pause frame
221 #define FCTHR_EN (1<<2) // enable flow control threshold mode.
222 #define TX_PAUSE (1<<1) // transmit pause frame
223 #define FC_EN (1<<0) // flow control mode enable
224 unsigned int bpr; // back pressure, 0x9c
225 #define BK_LOW_MASK (1<<11|1<<10|1<<9|1<<8)
226 #define BKJAM_LEN_MASK (1<<7|1<<6|1<<5|1<<4)
227 #define BK_MODE (1<<1) // back pressure address mode
228 #define BK_EN (1<<0) // back pressure mode enable
229 unsigned int reserved2[9]; // 0xa0 - 0xc0
230 unsigned int ts; // test seed, 0xc4
231 #define TEST_SEED_MASK 0x3fff
232 unsigned int dmafifos; // DMA/FIFO state, 0xc8
233 #define TXD_REQ (1<<31) // TXDMA request
234 #define RXD_REQ (1<<30) // RXDMA request
235 #define DARB_TXGNT (1<<29) // TXDMA grant
236 #define DARB_RXGNT (1<<28) // RXDMA grant
237 #define TXFIFO_EMPTY (1<<27) // TX FIFO is empty
238 #define RXFIFO_EMPTY (1<<26) // RX FIFO is empty
239 #define TXDMA2_SM_MASK (1<<14|1<<13|1<<12)
240 #define TXDMA1_SM_MASK (1<<11|1<<10|1<<9|1<<8)
241 #define RXDMA2_SM_MASK (1<<6|1<<5|1<<4)
242 #define RXDMA1_SM_MASK (1<<3|1<<2|1<<1|1<<0)
243 unsigned int tm; // test mode, 0xcc
244 #define SINGLE_PKT (1<<26) // single packet mode
245 #define PTIMER_TEST (1<<25) // automatic polling timer test mode
246 #define ITIMER_TEST (1<<24) // interrupt timer test mode
247 #define TEST_SEED_SEL (1<<22) // test seed select
248 #define SEED_SEL (1<<21) // seed select
249 #define TEST_MODE (1<<20) // transmission test mode
250 #define TEST_TIME_MASK (1<<19|1<<18|1<<17|1<<16|1<<15|1<<14|1<<13|1<<12|1<<11|1<<10)
251 #define TEST_EXCEL_MASK (1<<9|1<<8|1<<7|1<<6|1<<5)
252 unsigned int reserved3; // 0xd0
253 unsigned int txmcol_xscol; // TX_MCOL and TX_SCOL counter, 0xd4
254 #define TX_MCOL_MASK 0xffff0000
255 #define TX_MCOL_SHIFT_BIT 16
256 #define TX_SCOL_MASK 0xffff
257 #define TX_SCOL_SHIFT_BIT 0
258 unsigned int rpf_aep; // RPF and AEP counter, 0xd8
259 #define RPF_MASK 0xffff0000
260 #define RPF_SHIFT_BIT 16
261 #define AEP_MASK 0xffff
262 #define AEP_SHIFT_BIT 0
263 unsigned int xm_pg; // XM and PG counter, 0xdc
264 #define XM_MASK 0xffff0000
265 #define XM_SHIFT_BIT 16
266 #define PG_MASK 0xffff
267 #define PG_SHIFT_BIT 0
268 unsigned int runtcnt_tlcc; // RUNT_CNT and TLCC counter, 0xe0
269 #define RUNT_CNT_MASK 0xffff0000
270 #define RUNT_CNT_SHIFT_BIT 16
271 #define TLCC_MASK 0xffff
272 #define TLCC_SHIFT_BIT 0
273 unsigned int crcercnt_ftlcnt; // CRCER_CNT and FTL_CNT counter, 0xe4
274 #define CRCER_CNT_MASK 0xffff0000
275 #define CRCER_CNT_SHIFT_BIT 16
276 #define FTL_CNT_MASK 0xffff
277 #define FTL_CNT_SHIFT_BIT 0
278 unsigned int rlc_rcc; // RLC and RCC counter, 0xe8
279 #define RLC_MASK 0xffff0000
280 #define RLC_SHIFT_BIT 16
281 #define RCC_MASK 0xffff
282 #define RCC_SHIFT_BIT 0
283 unsigned int broc; // BROC counter, 0xec
284 unsigned int mulca; // MULCA counter, 0xf0
285 unsigned int rp; // RP counter, 0xf4
286 unsigned int xp; // XP counter, 0xf8
287 } mac_control_reg_t;
289 #define ISR_REG_OFFSET 0x00
290 #define IMR_REG_OFFSET 0x04
291 #define MAC_MADR_REG_OFFSET 0x08
292 #define MAC_LADR_REG_OFFSET 0x0C
293 #define MATH0_REG_OFFSET 0x10
294 #define MATH1_REG_OFFSET 0x14
295 #define TXPD_REG_OFFSET 0x18
296 #define RXPD_REG_OFFSET 0x1C
297 #define TXR_BADR_REG_OFFSET 0x20
298 #define RXR_BADR_REG_OFFSET 0x24
299 #define ITC_REG_OFFSET 0x28
300 #define APTC_REG_OFFSET 0x2C
301 #define DBLAC_REG_OFFSET 0x30
302 #define MACCR_REG_OFFSET 0x88
303 #define MACSR_REG_OFFSET 0x8C
304 #define PHYCR_REG_OFFSET 0x90
305 #define PHYWDATA_REG_OFFSET 0x94
306 #define FCR_REG_OFFSET 0x98
307 #define BPR_REG_OFFSET 0x9C
308 #define TS_REG_OFFSET 0xC4
309 #define DMAFIFOS_REG_OFFSET 0xC8
310 #define TM_REG_OFFSET 0xCC
311 #define TX_MCOL_TX_SCOL_REG_OFFSET 0xD4
312 #define RPF_AEP_REG_OFFSET 0xD8
313 #define XM_PG_REG_OFFSET 0xDC
314 #define RUNT_CNT_TLCC_REG_OFFSET 0xE0
315 #define CRCER_CNT_FTL_CNT_REG_OFFSET 0xE4
316 #define RLC_RCC_REG_OFFSET 0xE8
317 #define BROC_REG_OFFSET 0xEC
318 #define MULCA_REG_OFFSET 0xF0
319 #define RP_REG_OFFSET 0xF4
320 #define XP_REG_OFFSET 0xF8
322 #define RX_DESC_NUM 64
324 typedef struct mcpu_mac_priv_struct {
325 unsigned int phyTxDescBaseAddr; // Tx descriptor physical base address
326 tx_desc_t *virtTxDescBaseAddr; // Tx descriptor virtual base address
327 unsigned int phyRxDescBaseAddr; // Rx descriptor physical base address
328 rx_desc_t *virtRxDescBaseAddr; // Rx descriptor virtual base address
329 unsigned int phyTxBufBaseAddr; // Tx buffer physical base address
330 unsigned char *virtTxBufBaseAddr; // Tx buffer virtual base address
331 //unsigned int phyRxBufBaseAddr[RX_DESC_NUM]; // Rx buffer physical base address
332 struct sk_buff * virtRxBufBaseAddr[RX_DESC_NUM]; // Rx buffer virtual base address
333 int TxDescNow; // Tx descriptor now first used index
334 int RxDescNow; // Rx descriptor now first used index
335 struct net_device_stats stats; // OS about the ethernet statistics
336 spinlock_t txlock;
337 spinlock_t rxlock;
338 unsigned int maccr; // store the maccr control register value
339 #if 1 // add by Victor Yu. 07-04-2005
340 struct work_struct rqueue;
341 #endif
342 } mcpu_mac_priv_t;
344 #endif // MOXACPU_MAC_H