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e710185a | 1 | /* |
4acbc6c7 | 2 | Ported to U-Boot by Christian Pellegrin <chri@ascensit.com> |
e710185a | 3 | |
4 | Based on sources from the Linux kernel (pcnet_cs.c, 8390.h) and | |
5 | eCOS(if_dp83902a.c, if_dp83902a.h). Both of these 2 wonderful world | |
6 | are GPL, so this is, of course, GPL. | |
7 | ||
8 | ||
9 | ========================================================================== | |
10 | ||
4acbc6c7 | 11 | dev/dp83902a.h |
e710185a | 12 | |
4acbc6c7 | 13 | National Semiconductor DP83902a ethernet chip |
e710185a | 14 | |
15 | ========================================================================== | |
16 | ####ECOSGPLCOPYRIGHTBEGIN#### | |
17 | ------------------------------------------- | |
18 | This file is part of eCos, the Embedded Configurable Operating System. | |
19 | Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. | |
20 | ||
21 | eCos is free software; you can redistribute it and/or modify it under | |
22 | the terms of the GNU General Public License as published by the Free | |
23 | Software Foundation; either version 2 or (at your option) any later version. | |
24 | ||
25 | eCos is distributed in the hope that it will be useful, but WITHOUT ANY | |
26 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
27 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
28 | for more details. | |
29 | ||
30 | You should have received a copy of the GNU General Public License along | |
31 | with eCos; if not, write to the Free Software Foundation, Inc., | |
32 | 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
33 | ||
34 | As a special exception, if other files instantiate templates or use macros | |
35 | or inline functions from this file, or you compile this file and link it | |
36 | with other works to produce a work based on this file, this file does not | |
37 | by itself cause the resulting work to be covered by the GNU General Public | |
38 | License. However the source code for this file must still be made available | |
39 | in accordance with section (3) of the GNU General Public License. | |
40 | ||
41 | This exception does not invalidate any other reasons why a work based on | |
42 | this file might be covered by the GNU General Public License. | |
43 | ||
44 | Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. | |
45 | at http://sources.redhat.com/ecos/ecos-license/ | |
46 | ------------------------------------------- | |
47 | ####ECOSGPLCOPYRIGHTEND#### | |
48 | ####BSDCOPYRIGHTBEGIN#### | |
49 | ||
50 | ------------------------------------------- | |
51 | ||
52 | Portions of this software may have been derived from OpenBSD or other sources, | |
53 | and are covered by the appropriate copyright disclaimers included herein. | |
54 | ||
55 | ------------------------------------------- | |
56 | ||
57 | ####BSDCOPYRIGHTEND#### | |
58 | ========================================================================== | |
59 | #####DESCRIPTIONBEGIN#### | |
60 | ||
4acbc6c7 JCPV |
61 | Author(s): gthomas |
62 | Contributors: gthomas, jskov | |
63 | Date: 2001-06-13 | |
e710185a | 64 | Purpose: |
65 | Description: | |
66 | ||
67 | ####DESCRIPTIONEND#### | |
68 | ||
69 | ========================================================================== | |
70 | ||
71 | */ | |
72 | ||
73 | /* | |
74 | ------------------------------------------------------------------------ | |
75 | Macros for accessing DP registers | |
76 | These can be overridden by the platform header | |
77 | */ | |
78 | ||
4acbc6c7 JCPV |
79 | #ifndef __NE2000_BASE_H__ |
80 | #define __NE2000_BASE_H__ | |
81 | ||
e710185a | 82 | #define bool int |
e710185a | 83 | #define false 0 |
84 | #define true 1 | |
85 | ||
702c85b0 NI |
86 | /* |
87 | * Debugging details | |
88 | * | |
89 | * Set to perms of: | |
90 | * 0 disables all debug output | |
91 | * 1 for process debug output | |
92 | * 2 for added data IO output: get_reg, put_reg | |
93 | * 4 for packet allocation/free output | |
94 | * 8 for only startup status, so we can tell we're installed OK | |
95 | */ | |
96 | #if 0 | |
97 | #define DEBUG 0xf | |
98 | #else | |
99 | #define DEBUG 0 | |
100 | #endif | |
101 | ||
102 | #if DEBUG & 1 | |
103 | #define DEBUG_FUNCTION() do { printf("%s\n", __FUNCTION__); } while (0) | |
104 | #define DEBUG_LINE() do { printf("%d\n", __LINE__); } while (0) | |
105 | #define PRINTK(args...) printf(args) | |
106 | #else | |
107 | #define DEBUG_FUNCTION() do {} while(0) | |
108 | #define DEBUG_LINE() do {} while(0) | |
109 | #define PRINTK(args...) | |
110 | #endif | |
111 | ||
e710185a | 112 | /* timeout for tx/rx in s */ |
113 | #define TOUT 5 | |
114 | /* Ether MAC address size */ | |
115 | #define ETHER_ADDR_LEN 6 | |
116 | ||
117 | ||
118 | #define CYGHWR_NS_DP83902A_PLF_BROKEN_TX_DMA 1 | |
119 | #define CYGACC_CALL_IF_DELAY_US(X) udelay(X) | |
120 | ||
121 | /* H/W infomation struct */ | |
122 | typedef struct hw_info_t { | |
4acbc6c7 JCPV |
123 | u32 offset; |
124 | u8 a0, a1, a2; | |
125 | u32 flags; | |
e710185a | 126 | } hw_info_t; |
127 | ||
128 | typedef struct dp83902a_priv_data { | |
4acbc6c7 JCPV |
129 | u8* base; |
130 | u8* data; | |
131 | u8* reset; | |
132 | int tx_next; /* First free Tx page */ | |
133 | int tx_int; /* Expecting interrupt from this buffer */ | |
134 | int rx_next; /* First free Rx page */ | |
135 | int tx1, tx2; /* Page numbers for Tx buffers */ | |
136 | u32 tx1_key, tx2_key; /* Used to ack when packet sent */ | |
137 | int tx1_len, tx2_len; | |
138 | bool tx_started, running, hardwired_esa; | |
139 | u8 esa[6]; | |
140 | void* plf_priv; | |
141 | ||
142 | /* Buffer allocation */ | |
143 | int tx_buf1, tx_buf2; | |
144 | int rx_buf_start, rx_buf_end; | |
e710185a | 145 | } dp83902a_priv_data_t; |
146 | ||
e710185a | 147 | /* ------------------------------------------------------------------------ */ |
148 | /* Register offsets */ | |
149 | ||
4acbc6c7 JCPV |
150 | #define DP_CR 0x00 |
151 | #define DP_CLDA0 0x01 | |
152 | #define DP_PSTART 0x01 /* write */ | |
153 | #define DP_CLDA1 0x02 | |
154 | #define DP_PSTOP 0x02 /* write */ | |
155 | #define DP_BNDRY 0x03 | |
156 | #define DP_TSR 0x04 | |
157 | #define DP_TPSR 0x04 /* write */ | |
158 | #define DP_NCR 0x05 | |
159 | #define DP_TBCL 0x05 /* write */ | |
160 | #define DP_FIFO 0x06 | |
161 | #define DP_TBCH 0x06 /* write */ | |
162 | #define DP_ISR 0x07 | |
163 | #define DP_CRDA0 0x08 | |
164 | #define DP_RSAL 0x08 /* write */ | |
165 | #define DP_CRDA1 0x09 | |
166 | #define DP_RSAH 0x09 /* write */ | |
167 | #define DP_RBCL 0x0a /* write */ | |
168 | #define DP_RBCH 0x0b /* write */ | |
169 | #define DP_RSR 0x0c | |
170 | #define DP_RCR 0x0c /* write */ | |
171 | #define DP_FER 0x0d | |
172 | #define DP_TCR 0x0d /* write */ | |
173 | #define DP_CER 0x0e | |
174 | #define DP_DCR 0x0e /* write */ | |
175 | #define DP_MISSED 0x0f | |
176 | #define DP_IMR 0x0f /* write */ | |
177 | #define DP_DATAPORT 0x10 /* "eprom" data port */ | |
178 | ||
179 | #define DP_P1_CR 0x00 | |
180 | #define DP_P1_PAR0 0x01 | |
181 | #define DP_P1_PAR1 0x02 | |
182 | #define DP_P1_PAR2 0x03 | |
183 | #define DP_P1_PAR3 0x04 | |
184 | #define DP_P1_PAR4 0x05 | |
185 | #define DP_P1_PAR5 0x06 | |
186 | #define DP_P1_CURP 0x07 | |
187 | #define DP_P1_MAR0 0x08 | |
188 | #define DP_P1_MAR1 0x09 | |
189 | #define DP_P1_MAR2 0x0a | |
190 | #define DP_P1_MAR3 0x0b | |
191 | #define DP_P1_MAR4 0x0c | |
192 | #define DP_P1_MAR5 0x0d | |
193 | #define DP_P1_MAR6 0x0e | |
194 | #define DP_P1_MAR7 0x0f | |
195 | ||
196 | #define DP_P2_CR 0x00 | |
197 | #define DP_P2_PSTART 0x01 | |
198 | #define DP_P2_CLDA0 0x01 /* write */ | |
199 | #define DP_P2_PSTOP 0x02 | |
200 | #define DP_P2_CLDA1 0x02 /* write */ | |
201 | #define DP_P2_RNPP 0x03 | |
202 | #define DP_P2_TPSR 0x04 | |
203 | #define DP_P2_LNPP 0x05 | |
204 | #define DP_P2_ACH 0x06 | |
205 | #define DP_P2_ACL 0x07 | |
206 | #define DP_P2_RCR 0x0c | |
207 | #define DP_P2_TCR 0x0d | |
208 | #define DP_P2_DCR 0x0e | |
209 | #define DP_P2_IMR 0x0f | |
e710185a | 210 | |
211 | /* Command register - common to all pages */ | |
212 | ||
4acbc6c7 JCPV |
213 | #define DP_CR_STOP 0x01 /* Stop: software reset */ |
214 | #define DP_CR_START 0x02 /* Start: initialize device */ | |
215 | #define DP_CR_TXPKT 0x04 /* Transmit packet */ | |
216 | #define DP_CR_RDMA 0x08 /* Read DMA (recv data from device) */ | |
217 | #define DP_CR_WDMA 0x10 /* Write DMA (send data to device) */ | |
218 | #define DP_CR_SEND 0x18 /* Send packet */ | |
219 | #define DP_CR_NODMA 0x20 /* Remote (or no) DMA */ | |
220 | #define DP_CR_PAGE0 0x00 /* Page select */ | |
221 | #define DP_CR_PAGE1 0x40 | |
222 | #define DP_CR_PAGE2 0x80 | |
223 | #define DP_CR_PAGEMSK 0x3F /* Used to mask out page bits */ | |
e710185a | 224 | |
225 | /* Data configuration register */ | |
226 | ||
4acbc6c7 JCPV |
227 | #define DP_DCR_WTS 0x01 /* 1=16 bit word transfers */ |
228 | #define DP_DCR_BOS 0x02 /* 1=Little Endian */ | |
229 | #define DP_DCR_LAS 0x04 /* 1=Single 32 bit DMA mode */ | |
230 | #define DP_DCR_LS 0x08 /* 1=normal mode, 0=loopback */ | |
231 | #define DP_DCR_ARM 0x10 /* 0=no send command (program I/O) */ | |
232 | #define DP_DCR_FIFO_1 0x00 /* FIFO threshold */ | |
233 | #define DP_DCR_FIFO_2 0x20 | |
234 | #define DP_DCR_FIFO_4 0x40 | |
235 | #define DP_DCR_FIFO_6 0x60 | |
e710185a | 236 | |
4acbc6c7 | 237 | #define DP_DCR_INIT (DP_DCR_LS|DP_DCR_FIFO_4) |
e710185a | 238 | |
239 | /* Interrupt status register */ | |
240 | ||
4acbc6c7 JCPV |
241 | #define DP_ISR_RxP 0x01 /* Packet received */ |
242 | #define DP_ISR_TxP 0x02 /* Packet transmitted */ | |
243 | #define DP_ISR_RxE 0x04 /* Receive error */ | |
244 | #define DP_ISR_TxE 0x08 /* Transmit error */ | |
245 | #define DP_ISR_OFLW 0x10 /* Receive overflow */ | |
246 | #define DP_ISR_CNT 0x20 /* Tally counters need emptying */ | |
247 | #define DP_ISR_RDC 0x40 /* Remote DMA complete */ | |
248 | #define DP_ISR_RESET 0x80 /* Device has reset (shutdown, error) */ | |
e710185a | 249 | |
250 | /* Interrupt mask register */ | |
251 | ||
4acbc6c7 JCPV |
252 | #define DP_IMR_RxP 0x01 /* Packet received */ |
253 | #define DP_IMR_TxP 0x02 /* Packet transmitted */ | |
254 | #define DP_IMR_RxE 0x04 /* Receive error */ | |
255 | #define DP_IMR_TxE 0x08 /* Transmit error */ | |
256 | #define DP_IMR_OFLW 0x10 /* Receive overflow */ | |
257 | #define DP_IMR_CNT 0x20 /* Tall counters need emptying */ | |
258 | #define DP_IMR_RDC 0x40 /* Remote DMA complete */ | |
e710185a | 259 | |
4acbc6c7 | 260 | #define DP_IMR_All 0x3F /* Everything but remote DMA */ |
e710185a | 261 | |
262 | /* Receiver control register */ | |
263 | ||
4acbc6c7 JCPV |
264 | #define DP_RCR_SEP 0x01 /* Save bad(error) packets */ |
265 | #define DP_RCR_AR 0x02 /* Accept runt packets */ | |
266 | #define DP_RCR_AB 0x04 /* Accept broadcast packets */ | |
267 | #define DP_RCR_AM 0x08 /* Accept multicast packets */ | |
268 | #define DP_RCR_PROM 0x10 /* Promiscuous mode */ | |
269 | #define DP_RCR_MON 0x20 /* Monitor mode - 1=accept no packets */ | |
e710185a | 270 | |
271 | /* Receiver status register */ | |
272 | ||
4acbc6c7 JCPV |
273 | #define DP_RSR_RxP 0x01 /* Packet received */ |
274 | #define DP_RSR_CRC 0x02 /* CRC error */ | |
275 | #define DP_RSR_FRAME 0x04 /* Framing error */ | |
276 | #define DP_RSR_FO 0x08 /* FIFO overrun */ | |
277 | #define DP_RSR_MISS 0x10 /* Missed packet */ | |
278 | #define DP_RSR_PHY 0x20 /* 0=pad match, 1=mad match */ | |
279 | #define DP_RSR_DIS 0x40 /* Receiver disabled */ | |
280 | #define DP_RSR_DFR 0x80 /* Receiver processing deferred */ | |
e710185a | 281 | |
282 | /* Transmitter control register */ | |
283 | ||
4acbc6c7 JCPV |
284 | #define DP_TCR_NOCRC 0x01 /* 1=inhibit CRC */ |
285 | #define DP_TCR_NORMAL 0x00 /* Normal transmitter operation */ | |
286 | #define DP_TCR_LOCAL 0x02 /* Internal NIC loopback */ | |
287 | #define DP_TCR_INLOOP 0x04 /* Full internal loopback */ | |
288 | #define DP_TCR_OUTLOOP 0x08 /* External loopback */ | |
289 | #define DP_TCR_ATD 0x10 /* Auto transmit disable */ | |
290 | #define DP_TCR_OFFSET 0x20 /* Collision offset adjust */ | |
e710185a | 291 | |
292 | /* Transmit status register */ | |
293 | ||
4acbc6c7 JCPV |
294 | #define DP_TSR_TxP 0x01 /* Packet transmitted */ |
295 | #define DP_TSR_COL 0x04 /* Collision (at least one) */ | |
296 | #define DP_TSR_ABT 0x08 /* Aborted because of too many collisions */ | |
297 | #define DP_TSR_CRS 0x10 /* Lost carrier */ | |
298 | #define DP_TSR_FU 0x20 /* FIFO underrun */ | |
299 | #define DP_TSR_CDH 0x40 /* Collision Detect Heartbeat */ | |
300 | #define DP_TSR_OWC 0x80 /* Collision outside normal window */ | |
301 | ||
302 | #define IEEE_8023_MAX_FRAME 1518 /* Largest possible ethernet frame */ | |
303 | #define IEEE_8023_MIN_FRAME 64 /* Smallest possible ethernet frame */ | |
702c85b0 NI |
304 | |
305 | /* Functions */ | |
306 | int get_prom(u8* mac_addr, u8* base_addr); | |
307 | ||
4acbc6c7 | 308 | #endif /* __NE2000_BASE_H__ */ |