post/i2c: Add ability to ignore I2C devices
[platform/kernel/u-boot.git] / drivers / serial / atmel_usart.h
1 /*
2  * Register definitions for the Atmel USART3 module.
3  *
4  * Copyright (C) 2005-2006 Atmel Corporation
5  *
6  * Modified to support C structure SoC access by
7  * Andreas Bießmann <biessmann@corscience.de>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
22  */
23 #ifndef __DRIVERS_ATMEL_USART_H__
24 #define __DRIVERS_ATMEL_USART_H__
25
26 /* USART3 register footprint */
27 typedef struct atmel_usart3 {
28         u32     cr;
29         u32     mr;
30         u32     ier;
31         u32     idr;
32         u32     imr;
33         u32     csr;
34         u32     rhr;
35         u32     thr;
36         u32     brgr;
37         u32     rtor;
38         u32     ttgr;
39         u32     reserved0[5];
40         u32     fidi;
41         u32     ner;
42         u32     reserved1;
43         u32     ifr;
44         u32     man;
45         u32     reserved2[54]; // version and PDC not needed
46 } atmel_usart3_t;
47
48 /* Bitfields in CR */
49 #define USART3_RSTRX_OFFSET                     2
50 #define USART3_RSTRX_SIZE                       1
51 #define USART3_RSTTX_OFFSET                     3
52 #define USART3_RSTTX_SIZE                       1
53 #define USART3_RXEN_OFFSET                      4
54 #define USART3_RXEN_SIZE                        1
55 #define USART3_RXDIS_OFFSET                     5
56 #define USART3_RXDIS_SIZE                       1
57 #define USART3_TXEN_OFFSET                      6
58 #define USART3_TXEN_SIZE                        1
59 #define USART3_TXDIS_OFFSET                     7
60 #define USART3_TXDIS_SIZE                       1
61 #define USART3_RSTSTA_OFFSET                    8
62 #define USART3_RSTSTA_SIZE                      1
63 #define USART3_STTBRK_OFFSET                    9
64 #define USART3_STTBRK_SIZE                      1
65 #define USART3_STPBRK_OFFSET                    10
66 #define USART3_STPBRK_SIZE                      1
67 #define USART3_STTTO_OFFSET                     11
68 #define USART3_STTTO_SIZE                       1
69 #define USART3_SENDA_OFFSET                     12
70 #define USART3_SENDA_SIZE                       1
71 #define USART3_RSTIT_OFFSET                     13
72 #define USART3_RSTIT_SIZE                       1
73 #define USART3_RSTNACK_OFFSET                   14
74 #define USART3_RSTNACK_SIZE                     1
75 #define USART3_RETTO_OFFSET                     15
76 #define USART3_RETTO_SIZE                       1
77 #define USART3_DTREN_OFFSET                     16
78 #define USART3_DTREN_SIZE                       1
79 #define USART3_DTRDIS_OFFSET                    17
80 #define USART3_DTRDIS_SIZE                      1
81 #define USART3_RTSEN_OFFSET                     18
82 #define USART3_RTSEN_SIZE                       1
83 #define USART3_RTSDIS_OFFSET                    19
84 #define USART3_RTSDIS_SIZE                      1
85 #define USART3_COMM_TX_OFFSET                   30
86 #define USART3_COMM_TX_SIZE                     1
87 #define USART3_COMM_RX_OFFSET                   31
88 #define USART3_COMM_RX_SIZE                     1
89
90 /* Bitfields in MR */
91 #define USART3_USART_MODE_OFFSET                0
92 #define USART3_USART_MODE_SIZE                  4
93 #define USART3_USCLKS_OFFSET                    4
94 #define USART3_USCLKS_SIZE                      2
95 #define USART3_CHRL_OFFSET                      6
96 #define USART3_CHRL_SIZE                        2
97 #define USART3_SYNC_OFFSET                      8
98 #define USART3_SYNC_SIZE                        1
99 #define USART3_PAR_OFFSET                       9
100 #define USART3_PAR_SIZE                         3
101 #define USART3_NBSTOP_OFFSET                    12
102 #define USART3_NBSTOP_SIZE                      2
103 #define USART3_CHMODE_OFFSET                    14
104 #define USART3_CHMODE_SIZE                      2
105 #define USART3_MSBF_OFFSET                      16
106 #define USART3_MSBF_SIZE                        1
107 #define USART3_MODE9_OFFSET                     17
108 #define USART3_MODE9_SIZE                       1
109 #define USART3_CLKO_OFFSET                      18
110 #define USART3_CLKO_SIZE                        1
111 #define USART3_OVER_OFFSET                      19
112 #define USART3_OVER_SIZE                        1
113 #define USART3_INACK_OFFSET                     20
114 #define USART3_INACK_SIZE                       1
115 #define USART3_DSNACK_OFFSET                    21
116 #define USART3_DSNACK_SIZE                      1
117 #define USART3_MAX_ITERATION_OFFSET             24
118 #define USART3_MAX_ITERATION_SIZE               3
119 #define USART3_FILTER_OFFSET                    28
120 #define USART3_FILTER_SIZE                      1
121
122 /* Bitfields in CSR */
123 #define USART3_RXRDY_OFFSET                     0
124 #define USART3_RXRDY_SIZE                       1
125 #define USART3_TXRDY_OFFSET                     1
126 #define USART3_TXRDY_SIZE                       1
127 #define USART3_RXBRK_OFFSET                     2
128 #define USART3_RXBRK_SIZE                       1
129 #define USART3_ENDRX_OFFSET                     3
130 #define USART3_ENDRX_SIZE                       1
131 #define USART3_ENDTX_OFFSET                     4
132 #define USART3_ENDTX_SIZE                       1
133 #define USART3_OVRE_OFFSET                      5
134 #define USART3_OVRE_SIZE                        1
135 #define USART3_FRAME_OFFSET                     6
136 #define USART3_FRAME_SIZE                       1
137 #define USART3_PARE_OFFSET                      7
138 #define USART3_PARE_SIZE                        1
139 #define USART3_TIMEOUT_OFFSET                   8
140 #define USART3_TIMEOUT_SIZE                     1
141 #define USART3_TXEMPTY_OFFSET                   9
142 #define USART3_TXEMPTY_SIZE                     1
143 #define USART3_ITERATION_OFFSET                 10
144 #define USART3_ITERATION_SIZE                   1
145 #define USART3_TXBUFE_OFFSET                    11
146 #define USART3_TXBUFE_SIZE                      1
147 #define USART3_RXBUFF_OFFSET                    12
148 #define USART3_RXBUFF_SIZE                      1
149 #define USART3_NACK_OFFSET                      13
150 #define USART3_NACK_SIZE                        1
151 #define USART3_RIIC_OFFSET                      16
152 #define USART3_RIIC_SIZE                        1
153 #define USART3_DSRIC_OFFSET                     17
154 #define USART3_DSRIC_SIZE                       1
155 #define USART3_DCDIC_OFFSET                     18
156 #define USART3_DCDIC_SIZE                       1
157 #define USART3_CTSIC_OFFSET                     19
158 #define USART3_CTSIC_SIZE                       1
159 #define USART3_RI_OFFSET                        20
160 #define USART3_RI_SIZE                          1
161 #define USART3_DSR_OFFSET                       21
162 #define USART3_DSR_SIZE                         1
163 #define USART3_DCD_OFFSET                       22
164 #define USART3_DCD_SIZE                         1
165 #define USART3_CTS_OFFSET                       23
166 #define USART3_CTS_SIZE                         1
167
168 /* Bitfields in RHR */
169 #define USART3_RXCHR_OFFSET                     0
170 #define USART3_RXCHR_SIZE                       9
171
172 /* Bitfields in THR */
173 #define USART3_TXCHR_OFFSET                     0
174 #define USART3_TXCHR_SIZE                       9
175
176 /* Bitfields in BRGR */
177 #define USART3_CD_OFFSET                        0
178 #define USART3_CD_SIZE                          16
179
180 /* Bitfields in RTOR */
181 #define USART3_TO_OFFSET                        0
182 #define USART3_TO_SIZE                          16
183
184 /* Bitfields in TTGR */
185 #define USART3_TG_OFFSET                        0
186 #define USART3_TG_SIZE                          8
187
188 /* Bitfields in FIDI */
189 #define USART3_FI_DI_RATIO_OFFSET               0
190 #define USART3_FI_DI_RATIO_SIZE                 11
191
192 /* Bitfields in NER */
193 #define USART3_NB_ERRORS_OFFSET                 0
194 #define USART3_NB_ERRORS_SIZE                   8
195
196 /* Bitfields in XXR */
197 #define USART3_XOFF_OFFSET                      0
198 #define USART3_XOFF_SIZE                        8
199 #define USART3_XON_OFFSET                       8
200 #define USART3_XON_SIZE                         8
201
202 /* Bitfields in IFR */
203 #define USART3_IRDA_FILTER_OFFSET               0
204 #define USART3_IRDA_FILTER_SIZE                 8
205
206 /* Bitfields in RCR */
207 #define USART3_RXCTR_OFFSET                     0
208 #define USART3_RXCTR_SIZE                       16
209
210 /* Bitfields in TCR */
211 #define USART3_TXCTR_OFFSET                     0
212 #define USART3_TXCTR_SIZE                       16
213
214 /* Bitfields in RNCR */
215 #define USART3_RXNCR_OFFSET                     0
216 #define USART3_RXNCR_SIZE                       16
217
218 /* Bitfields in TNCR */
219 #define USART3_TXNCR_OFFSET                     0
220 #define USART3_TXNCR_SIZE                       16
221
222 /* Bitfields in PTCR */
223 #define USART3_RXTEN_OFFSET                     0
224 #define USART3_RXTEN_SIZE                       1
225 #define USART3_RXTDIS_OFFSET                    1
226 #define USART3_RXTDIS_SIZE                      1
227 #define USART3_TXTEN_OFFSET                     8
228 #define USART3_TXTEN_SIZE                       1
229 #define USART3_TXTDIS_OFFSET                    9
230 #define USART3_TXTDIS_SIZE                      1
231
232 /* Constants for USART_MODE */
233 #define USART3_USART_MODE_NORMAL                0
234 #define USART3_USART_MODE_RS485                 1
235 #define USART3_USART_MODE_HARDWARE              2
236 #define USART3_USART_MODE_MODEM                 3
237 #define USART3_USART_MODE_ISO7816_T0            4
238 #define USART3_USART_MODE_ISO7816_T1            6
239 #define USART3_USART_MODE_IRDA                  8
240
241 /* Constants for USCLKS */
242 #define USART3_USCLKS_MCK                       0
243 #define USART3_USCLKS_MCK_DIV                   1
244 #define USART3_USCLKS_SCK                       3
245
246 /* Constants for CHRL */
247 #define USART3_CHRL_5                           0
248 #define USART3_CHRL_6                           1
249 #define USART3_CHRL_7                           2
250 #define USART3_CHRL_8                           3
251
252 /* Constants for PAR */
253 #define USART3_PAR_EVEN                         0
254 #define USART3_PAR_ODD                          1
255 #define USART3_PAR_SPACE                        2
256 #define USART3_PAR_MARK                         3
257 #define USART3_PAR_NONE                         4
258 #define USART3_PAR_MULTI                        6
259
260 /* Constants for NBSTOP */
261 #define USART3_NBSTOP_1                         0
262 #define USART3_NBSTOP_1_5                       1
263 #define USART3_NBSTOP_2                         2
264
265 /* Constants for CHMODE */
266 #define USART3_CHMODE_NORMAL                    0
267 #define USART3_CHMODE_ECHO                      1
268 #define USART3_CHMODE_LOCAL_LOOP                2
269 #define USART3_CHMODE_REMOTE_LOOP               3
270
271 /* Constants for MSBF */
272 #define USART3_MSBF_LSBF                        0
273 #define USART3_MSBF_MSBF                        1
274
275 /* Constants for OVER */
276 #define USART3_OVER_X16                         0
277 #define USART3_OVER_X8                          1
278
279 /* Constants for CD */
280 #define USART3_CD_DISABLE                       0
281 #define USART3_CD_BYPASS                        1
282
283 /* Constants for TO */
284 #define USART3_TO_DISABLE                       0
285
286 /* Constants for TG */
287 #define USART3_TG_DISABLE                       0
288
289 /* Constants for FI_DI_RATIO */
290 #define USART3_FI_DI_RATIO_DISABLE              0
291
292 /* Bit manipulation macros */
293 #define USART3_BIT(name)                                \
294         (1 << USART3_##name##_OFFSET)
295 #define USART3_BF(name,value)                           \
296         (((value) & ((1 << USART3_##name##_SIZE) - 1))  \
297          << USART3_##name##_OFFSET)
298 #define USART3_BFEXT(name,value)                        \
299         (((value) >> USART3_##name##_OFFSET)            \
300          & ((1 << USART3_##name##_SIZE) - 1))
301 #define USART3_BFINS(name,value,old)                    \
302         (((old) & ~(((1 << USART3_##name##_SIZE) - 1)   \
303                     << USART3_##name##_OFFSET))         \
304          | USART3_BF(name,value))
305
306 #endif /* __DRIVERS_ATMEL_USART_H__ */