uboot/drivers/serial/atmel_usart.h
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   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * Register definitions for the Atmel USART3 module.
   4 *
   5 * Copyright (C) 2005-2006 Atmel Corporation
   6 *
   7 * Modified to support C structure SoC access by
   8 * Andreas BieƟmann <biessmann@corscience.de>
   9 */
  10#ifndef __DRIVERS_ATMEL_USART_H__
  11#define __DRIVERS_ATMEL_USART_H__
  12
  13/* USART3 register footprint */
  14typedef struct atmel_usart3 {
  15        u32     cr;
  16        u32     mr;
  17        u32     ier;
  18        u32     idr;
  19        u32     imr;
  20        u32     csr;
  21        u32     rhr;
  22        u32     thr;
  23        u32     brgr;
  24        u32     rtor;
  25        u32     ttgr;
  26        u32     reserved0[5];
  27        u32     fidi;
  28        u32     ner;
  29        u32     reserved1;
  30        u32     ifr;
  31        u32     man;
  32        u32     reserved2[54]; /* version and PDC not needed */
  33} atmel_usart3_t;
  34
  35/* Bitfields in CR */
  36#define USART3_RSTRX_OFFSET                     2
  37#define USART3_RSTRX_SIZE                       1
  38#define USART3_RSTTX_OFFSET                     3
  39#define USART3_RSTTX_SIZE                       1
  40#define USART3_RXEN_OFFSET                      4
  41#define USART3_RXEN_SIZE                        1
  42#define USART3_RXDIS_OFFSET                     5
  43#define USART3_RXDIS_SIZE                       1
  44#define USART3_TXEN_OFFSET                      6
  45#define USART3_TXEN_SIZE                        1
  46#define USART3_TXDIS_OFFSET                     7
  47#define USART3_TXDIS_SIZE                       1
  48#define USART3_RSTSTA_OFFSET                    8
  49#define USART3_RSTSTA_SIZE                      1
  50#define USART3_STTBRK_OFFSET                    9
  51#define USART3_STTBRK_SIZE                      1
  52#define USART3_STPBRK_OFFSET                    10
  53#define USART3_STPBRK_SIZE                      1
  54#define USART3_STTTO_OFFSET                     11
  55#define USART3_STTTO_SIZE                       1
  56#define USART3_SENDA_OFFSET                     12
  57#define USART3_SENDA_SIZE                       1
  58#define USART3_RSTIT_OFFSET                     13
  59#define USART3_RSTIT_SIZE                       1
  60#define USART3_RSTNACK_OFFSET                   14
  61#define USART3_RSTNACK_SIZE                     1
  62#define USART3_RETTO_OFFSET                     15
  63#define USART3_RETTO_SIZE                       1
  64#define USART3_DTREN_OFFSET                     16
  65#define USART3_DTREN_SIZE                       1
  66#define USART3_DTRDIS_OFFSET                    17
  67#define USART3_DTRDIS_SIZE                      1
  68#define USART3_RTSEN_OFFSET                     18
  69#define USART3_RTSEN_SIZE                       1
  70#define USART3_RTSDIS_OFFSET                    19
  71#define USART3_RTSDIS_SIZE                      1
  72#define USART3_COMM_TX_OFFSET                   30
  73#define USART3_COMM_TX_SIZE                     1
  74#define USART3_COMM_RX_OFFSET                   31
  75#define USART3_COMM_RX_SIZE                     1
  76
  77/* Bitfields in MR */
  78#define USART3_USART_MODE_OFFSET                0
  79#define USART3_USART_MODE_SIZE                  4
  80#define USART3_USCLKS_OFFSET                    4
  81#define USART3_USCLKS_SIZE                      2
  82#define USART3_CHRL_OFFSET                      6
  83#define USART3_CHRL_SIZE                        2
  84#define USART3_SYNC_OFFSET                      8
  85#define USART3_SYNC_SIZE                        1
  86#define USART3_PAR_OFFSET                       9
  87#define USART3_PAR_SIZE                         3
  88#define USART3_NBSTOP_OFFSET                    12
  89#define USART3_NBSTOP_SIZE                      2
  90#define USART3_CHMODE_OFFSET                    14
  91#define USART3_CHMODE_SIZE                      2
  92#define USART3_MSBF_OFFSET                      16
  93#define USART3_MSBF_SIZE                        1
  94#define USART3_MODE9_OFFSET                     17
  95#define USART3_MODE9_SIZE                       1
  96#define USART3_CLKO_OFFSET                      18
  97#define USART3_CLKO_SIZE                        1
  98#define USART3_OVER_OFFSET                      19
  99#define USART3_OVER_SIZE                        1
 100#define USART3_INACK_OFFSET                     20
 101#define USART3_INACK_SIZE                       1
 102#define USART3_DSNACK_OFFSET                    21
 103#define USART3_DSNACK_SIZE                      1
 104#define USART3_MAX_ITERATION_OFFSET             24
 105#define USART3_MAX_ITERATION_SIZE               3
 106#define USART3_FILTER_OFFSET                    28
 107#define USART3_FILTER_SIZE                      1
 108
 109/* Bitfields in CSR */
 110#define USART3_RXRDY_OFFSET                     0
 111#define USART3_RXRDY_SIZE                       1
 112#define USART3_TXRDY_OFFSET                     1
 113#define USART3_TXRDY_SIZE                       1
 114#define USART3_RXBRK_OFFSET                     2
 115#define USART3_RXBRK_SIZE                       1
 116#define USART3_ENDRX_OFFSET                     3
 117#define USART3_ENDRX_SIZE                       1
 118#define USART3_ENDTX_OFFSET                     4
 119#define USART3_ENDTX_SIZE                       1
 120#define USART3_OVRE_OFFSET                      5
 121#define USART3_OVRE_SIZE                        1
 122#define USART3_FRAME_OFFSET                     6
 123#define USART3_FRAME_SIZE                       1
 124#define USART3_PARE_OFFSET                      7
 125#define USART3_PARE_SIZE                        1
 126#define USART3_TIMEOUT_OFFSET                   8
 127#define USART3_TIMEOUT_SIZE                     1
 128#define USART3_TXEMPTY_OFFSET                   9
 129#define USART3_TXEMPTY_SIZE                     1
 130#define USART3_ITERATION_OFFSET                 10
 131#define USART3_ITERATION_SIZE                   1
 132#define USART3_TXBUFE_OFFSET                    11
 133#define USART3_TXBUFE_SIZE                      1
 134#define USART3_RXBUFF_OFFSET                    12
 135#define USART3_RXBUFF_SIZE                      1
 136#define USART3_NACK_OFFSET                      13
 137#define USART3_NACK_SIZE                        1
 138#define USART3_RIIC_OFFSET                      16
 139#define USART3_RIIC_SIZE                        1
 140#define USART3_DSRIC_OFFSET                     17
 141#define USART3_DSRIC_SIZE                       1
 142#define USART3_DCDIC_OFFSET                     18
 143#define USART3_DCDIC_SIZE                       1
 144#define USART3_CTSIC_OFFSET                     19
 145#define USART3_CTSIC_SIZE                       1
 146#define USART3_RI_OFFSET                        20
 147#define USART3_RI_SIZE                          1
 148#define USART3_DSR_OFFSET                       21
 149#define USART3_DSR_SIZE                         1
 150#define USART3_DCD_OFFSET                       22
 151#define USART3_DCD_SIZE                         1
 152#define USART3_CTS_OFFSET                       23
 153#define USART3_CTS_SIZE                         1
 154
 155/* Bitfields in RHR */
 156#define USART3_RXCHR_OFFSET                     0
 157#define USART3_RXCHR_SIZE                       9
 158
 159/* Bitfields in THR */
 160#define USART3_TXCHR_OFFSET                     0
 161#define USART3_TXCHR_SIZE                       9
 162
 163/* Bitfields in BRGR */
 164#define USART3_CD_OFFSET                        0
 165#define USART3_CD_SIZE                          16
 166
 167/* Bitfields in RTOR */
 168#define USART3_TO_OFFSET                        0
 169#define USART3_TO_SIZE                          16
 170
 171/* Bitfields in TTGR */
 172#define USART3_TG_OFFSET                        0
 173#define USART3_TG_SIZE                          8
 174
 175/* Bitfields in FIDI */
 176#define USART3_FI_DI_RATIO_OFFSET               0
 177#define USART3_FI_DI_RATIO_SIZE                 11
 178
 179/* Bitfields in NER */
 180#define USART3_NB_ERRORS_OFFSET                 0
 181#define USART3_NB_ERRORS_SIZE                   8
 182
 183/* Bitfields in XXR */
 184#define USART3_XOFF_OFFSET                      0
 185#define USART3_XOFF_SIZE                        8
 186#define USART3_XON_OFFSET                       8
 187#define USART3_XON_SIZE                         8
 188
 189/* Bitfields in IFR */
 190#define USART3_IRDA_FILTER_OFFSET               0
 191#define USART3_IRDA_FILTER_SIZE                 8
 192
 193/* Bitfields in RCR */
 194#define USART3_RXCTR_OFFSET                     0
 195#define USART3_RXCTR_SIZE                       16
 196
 197/* Bitfields in TCR */
 198#define USART3_TXCTR_OFFSET                     0
 199#define USART3_TXCTR_SIZE                       16
 200
 201/* Bitfields in RNCR */
 202#define USART3_RXNCR_OFFSET                     0
 203#define USART3_RXNCR_SIZE                       16
 204
 205/* Bitfields in TNCR */
 206#define USART3_TXNCR_OFFSET                     0
 207#define USART3_TXNCR_SIZE                       16
 208
 209/* Bitfields in PTCR */
 210#define USART3_RXTEN_OFFSET                     0
 211#define USART3_RXTEN_SIZE                       1
 212#define USART3_RXTDIS_OFFSET                    1
 213#define USART3_RXTDIS_SIZE                      1
 214#define USART3_TXTEN_OFFSET                     8
 215#define USART3_TXTEN_SIZE                       1
 216#define USART3_TXTDIS_OFFSET                    9
 217#define USART3_TXTDIS_SIZE                      1
 218
 219/* Constants for USART_MODE */
 220#define USART3_USART_MODE_NORMAL                0
 221#define USART3_USART_MODE_RS485                 1
 222#define USART3_USART_MODE_HARDWARE              2
 223#define USART3_USART_MODE_MODEM                 3
 224#define USART3_USART_MODE_ISO7816_T0            4
 225#define USART3_USART_MODE_ISO7816_T1            6
 226#define USART3_USART_MODE_IRDA                  8
 227
 228/* Constants for USCLKS */
 229#define USART3_USCLKS_MCK                       0
 230#define USART3_USCLKS_MCK_DIV                   1
 231#define USART3_USCLKS_SCK                       3
 232
 233/* Constants for CHRL */
 234#define USART3_CHRL_5                           0
 235#define USART3_CHRL_6                           1
 236#define USART3_CHRL_7                           2
 237#define USART3_CHRL_8                           3
 238
 239/* Constants for PAR */
 240#define USART3_PAR_EVEN                         0
 241#define USART3_PAR_ODD                          1
 242#define USART3_PAR_SPACE                        2
 243#define USART3_PAR_MARK                         3
 244#define USART3_PAR_NONE                         4
 245#define USART3_PAR_MULTI                        6
 246
 247/* Constants for NBSTOP */
 248#define USART3_NBSTOP_1                         0
 249#define USART3_NBSTOP_1_5                       1
 250#define USART3_NBSTOP_2                         2
 251
 252/* Constants for CHMODE */
 253#define USART3_CHMODE_NORMAL                    0
 254#define USART3_CHMODE_ECHO                      1
 255#define USART3_CHMODE_LOCAL_LOOP                2
 256#define USART3_CHMODE_REMOTE_LOOP               3
 257
 258/* Constants for MSBF */
 259#define USART3_MSBF_LSBF                        0
 260#define USART3_MSBF_MSBF                        1
 261
 262/* Constants for OVER */
 263#define USART3_OVER_X16                         0
 264#define USART3_OVER_X8                          1
 265
 266/* Constants for CD */
 267#define USART3_CD_DISABLE                       0
 268#define USART3_CD_BYPASS                        1
 269
 270/* Constants for TO */
 271#define USART3_TO_DISABLE                       0
 272
 273/* Constants for TG */
 274#define USART3_TG_DISABLE                       0
 275
 276/* Constants for FI_DI_RATIO */
 277#define USART3_FI_DI_RATIO_DISABLE              0
 278
 279/* Bit manipulation macros */
 280#define USART3_BIT(name)                                \
 281        (1 << USART3_##name##_OFFSET)
 282#define USART3_BF(name,value)                           \
 283        (((value) & ((1 << USART3_##name##_SIZE) - 1))  \
 284         << USART3_##name##_OFFSET)
 285#define USART3_BFEXT(name,value)                        \
 286        (((value) >> USART3_##name##_OFFSET)            \
 287         & ((1 << USART3_##name##_SIZE) - 1))
 288#define USART3_BFINS(name,value,old)                    \
 289        (((old) & ~(((1 << USART3_##name##_SIZE) - 1)   \
 290                    << USART3_##name##_OFFSET))         \
 291         | USART3_BF(name,value))
 292
 293#endif /* __DRIVERS_ATMEL_USART_H__ */
 294