arch/mips/include/asm/sibyte/sb1250_uart.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*  *********************************************************************
   3     *  SB1250 Board Support Package
   4     *
   5     *  UART Constants                           File: sb1250_uart.h
   6     *
   7     *  This module contains constants and macros useful for
   8     *  manipulating the SB1250's UARTs
   9     *
  10     *  SB1250 specification level:  User's manual 1/02/02
  11     *
  12     *********************************************************************
  13     *
  14     *  Copyright 2000,2001,2002,2003
  15     *  Broadcom Corporation. All rights reserved.
  16     *
  17     ********************************************************************* */
  18
  19
  20 #ifndef _SB1250_UART_H
  21 #define _SB1250_UART_H
  22
  23 #include <asm/sibyte/sb1250_defs.h>
  24
  25 /* **********************************************************************
  26    * DUART Registers
  27    ********************************************************************** */
  28
  29 /*
  30  * DUART Mode Register #1 (Table 10-3)
  31  * Register: DUART_MODE_REG_1_A
  32  * Register: DUART_MODE_REG_1_B
  33  */
  34
  35 #define S_DUART_BITS_PER_CHAR       0
  36 #define M_DUART_BITS_PER_CHAR       _SB_MAKEMASK(2, S_DUART_BITS_PER_CHAR)
  37 #define V_DUART_BITS_PER_CHAR(x)    _SB_MAKEVALUE(x, S_DUART_BITS_PER_CHAR)
  38
  39 #define K_DUART_BITS_PER_CHAR_RSV0  0
  40 #define K_DUART_BITS_PER_CHAR_RSV1  1
  41 #define K_DUART_BITS_PER_CHAR_7     2
  42 #define K_DUART_BITS_PER_CHAR_8     3
  43
  44 #define V_DUART_BITS_PER_CHAR_RSV0  V_DUART_BITS_PER_CHAR(K_DUART_BITS_PER_CHAR_RSV0)
  45 #define V_DUART_BITS_PER_CHAR_RSV1  V_DUART_BITS_PER_CHAR(K_DUART_BITS_PER_CHAR_RSV1)
  46 #define V_DUART_BITS_PER_CHAR_7     V_DUART_BITS_PER_CHAR(K_DUART_BITS_PER_CHAR_7)
  47 #define V_DUART_BITS_PER_CHAR_8     V_DUART_BITS_PER_CHAR(K_DUART_BITS_PER_CHAR_8)
  48
  49
  50 #define M_DUART_PARITY_TYPE_EVEN    0x00
  51 #define M_DUART_PARITY_TYPE_ODD     _SB_MAKEMASK1(2)
  52
  53 #define S_DUART_PARITY_MODE          3
  54 #define M_DUART_PARITY_MODE         _SB_MAKEMASK(2, S_DUART_PARITY_MODE)
  55 #define V_DUART_PARITY_MODE(x)      _SB_MAKEVALUE(x, S_DUART_PARITY_MODE)
  56
  57 #define K_DUART_PARITY_MODE_ADD       0
  58 #define K_DUART_PARITY_MODE_ADD_FIXED 1
  59 #define K_DUART_PARITY_MODE_NONE      2
  60
  61 #define V_DUART_PARITY_MODE_ADD       V_DUART_PARITY_MODE(K_DUART_PARITY_MODE_ADD)
  62 #define V_DUART_PARITY_MODE_ADD_FIXED V_DUART_PARITY_MODE(K_DUART_PARITY_MODE_ADD_FIXED)
  63 #define V_DUART_PARITY_MODE_NONE      V_DUART_PARITY_MODE(K_DUART_PARITY_MODE_NONE)
  64
  65 #define M_DUART_TX_IRQ_SEL_TXRDY    0
  66 #define M_DUART_TX_IRQ_SEL_TXEMPT   _SB_MAKEMASK1(5)
  67
  68 #define M_DUART_RX_IRQ_SEL_RXRDY    0
  69 #define M_DUART_RX_IRQ_SEL_RXFULL   _SB_MAKEMASK1(6)
  70
  71 #define M_DUART_RX_RTS_ENA          _SB_MAKEMASK1(7)
  72
  73 /*
  74  * DUART Mode Register #2 (Table 10-4)
  75  * Register: DUART_MODE_REG_2_A
  76  * Register: DUART_MODE_REG_2_B
  77  */
  78
  79 #define M_DUART_MODE_RESERVED1      _SB_MAKEMASK(3, 0)   /* ignored */
  80
  81 #define M_DUART_STOP_BIT_LEN_2      _SB_MAKEMASK1(3)
  82 #define M_DUART_STOP_BIT_LEN_1      0
  83
  84 #define M_DUART_TX_CTS_ENA          _SB_MAKEMASK1(4)
  85
  86
  87 #define M_DUART_MODE_RESERVED2      _SB_MAKEMASK1(5)    /* must be zero */
  88
  89 #define S_DUART_CHAN_MODE           6
  90 #define M_DUART_CHAN_MODE           _SB_MAKEMASK(2, S_DUART_CHAN_MODE)
  91 #define V_DUART_CHAN_MODE(x)        _SB_MAKEVALUE(x, S_DUART_CHAN_MODE)
  92
  93 #define K_DUART_CHAN_MODE_NORMAL    0
  94 #define K_DUART_CHAN_MODE_LCL_LOOP  2
  95 #define K_DUART_CHAN_MODE_REM_LOOP  3
  96
  97 #define V_DUART_CHAN_MODE_NORMAL    V_DUART_CHAN_MODE(K_DUART_CHAN_MODE_NORMAL)
  98 #define V_DUART_CHAN_MODE_LCL_LOOP  V_DUART_CHAN_MODE(K_DUART_CHAN_MODE_LCL_LOOP)
  99 #define V_DUART_CHAN_MODE_REM_LOOP  V_DUART_CHAN_MODE(K_DUART_CHAN_MODE_REM_LOOP)
 100
 101 /*
 102  * DUART Command Register (Table 10-5)
 103  * Register: DUART_CMD_A
 104  * Register: DUART_CMD_B
 105  */
 106
 107 #define M_DUART_RX_EN               _SB_MAKEMASK1(0)
 108 #define M_DUART_RX_DIS              _SB_MAKEMASK1(1)
 109 #define M_DUART_TX_EN               _SB_MAKEMASK1(2)
 110 #define M_DUART_TX_DIS              _SB_MAKEMASK1(3)
 111
 112 #define S_DUART_MISC_CMD            4
 113 #define M_DUART_MISC_CMD            _SB_MAKEMASK(3, S_DUART_MISC_CMD)
 114 #define V_DUART_MISC_CMD(x)         _SB_MAKEVALUE(x, S_DUART_MISC_CMD)
 115
 116 #define K_DUART_MISC_CMD_NOACTION0       0
 117 #define K_DUART_MISC_CMD_NOACTION1       1
 118 #define K_DUART_MISC_CMD_RESET_RX        2
 119 #define K_DUART_MISC_CMD_RESET_TX        3
 120 #define K_DUART_MISC_CMD_NOACTION4       4
 121 #define K_DUART_MISC_CMD_RESET_BREAK_INT 5
 122 #define K_DUART_MISC_CMD_START_BREAK     6
 123 #define K_DUART_MISC_CMD_STOP_BREAK      7
 124
 125 #define V_DUART_MISC_CMD_NOACTION0       V_DUART_MISC_CMD(K_DUART_MISC_CMD_NOACTION0)
 126 #define V_DUART_MISC_CMD_NOACTION1       V_DUART_MISC_CMD(K_DUART_MISC_CMD_NOACTION1)
 127 #define V_DUART_MISC_CMD_RESET_RX        V_DUART_MISC_CMD(K_DUART_MISC_CMD_RESET_RX)
 128 #define V_DUART_MISC_CMD_RESET_TX        V_DUART_MISC_CMD(K_DUART_MISC_CMD_RESET_TX)
 129 #define V_DUART_MISC_CMD_NOACTION4       V_DUART_MISC_CMD(K_DUART_MISC_CMD_NOACTION4)
 130 #define V_DUART_MISC_CMD_RESET_BREAK_INT V_DUART_MISC_CMD(K_DUART_MISC_CMD_RESET_BREAK_INT)
 131 #define V_DUART_MISC_CMD_START_BREAK     V_DUART_MISC_CMD(K_DUART_MISC_CMD_START_BREAK)
 132 #define V_DUART_MISC_CMD_STOP_BREAK      V_DUART_MISC_CMD(K_DUART_MISC_CMD_STOP_BREAK)
 133
 134 #define M_DUART_CMD_RESERVED             _SB_MAKEMASK1(7)
 135
 136 /*
 137  * DUART Status Register (Table 10-6)
 138  * Register: DUART_STATUS_A
 139  * Register: DUART_STATUS_B
 140  * READ-ONLY
 141  */
 142
 143 #define M_DUART_RX_RDY              _SB_MAKEMASK1(0)
 144 #define M_DUART_RX_FFUL             _SB_MAKEMASK1(1)
 145 #define M_DUART_TX_RDY              _SB_MAKEMASK1(2)
 146 #define M_DUART_TX_EMT              _SB_MAKEMASK1(3)
 147 #define M_DUART_OVRUN_ERR           _SB_MAKEMASK1(4)
 148 #define M_DUART_PARITY_ERR          _SB_MAKEMASK1(5)
 149 #define M_DUART_FRM_ERR             _SB_MAKEMASK1(6)
 150 #define M_DUART_RCVD_BRK            _SB_MAKEMASK1(7)
 151
 152 /*
 153  * DUART Baud Rate Register (Table 10-7)
 154  * Register: DUART_CLK_SEL_A
 155  * Register: DUART_CLK_SEL_B
 156  */
 157
 158 #define M_DUART_CLK_COUNTER         _SB_MAKEMASK(12, 0)
 159 #define V_DUART_BAUD_RATE(x)        (100000000/((x)*20)-1)
 160
 161 /*
 162  * DUART Data Registers (Table 10-8 and 10-9)
 163  * Register: DUART_RX_HOLD_A
 164  * Register: DUART_RX_HOLD_B
 165  * Register: DUART_TX_HOLD_A
 166  * Register: DUART_TX_HOLD_B
 167  */
 168
 169 #define M_DUART_RX_DATA             _SB_MAKEMASK(8, 0)
 170 #define M_DUART_TX_DATA             _SB_MAKEMASK(8, 0)
 171
 172 /*
 173  * DUART Input Port Register (Table 10-10)
 174  * Register: DUART_IN_PORT
 175  */
 176
 177 #define M_DUART_IN_PIN0_VAL         _SB_MAKEMASK1(0)
 178 #define M_DUART_IN_PIN1_VAL         _SB_MAKEMASK1(1)
 179 #define M_DUART_IN_PIN2_VAL         _SB_MAKEMASK1(2)
 180 #define M_DUART_IN_PIN3_VAL         _SB_MAKEMASK1(3)
 181 #define M_DUART_IN_PIN4_VAL         _SB_MAKEMASK1(4)
 182 #define M_DUART_IN_PIN5_VAL         _SB_MAKEMASK1(5)
 183 #define M_DUART_RIN0_PIN            _SB_MAKEMASK1(6)
 184 #define M_DUART_RIN1_PIN            _SB_MAKEMASK1(7)
 185
 186 /*
 187  * DUART Input Port Change Status Register (Tables 10-11, 10-12, and 10-13)
 188  * Register: DUART_INPORT_CHNG
 189  */
 190
 191 #define S_DUART_IN_PIN_VAL          0
 192 #define M_DUART_IN_PIN_VAL          _SB_MAKEMASK(4, S_DUART_IN_PIN_VAL)
 193
 194 #define S_DUART_IN_PIN_CHNG         4
 195 #define M_DUART_IN_PIN_CHNG         _SB_MAKEMASK(4, S_DUART_IN_PIN_CHNG)
 196
 197
 198 /*
 199  * DUART Output port control register (Table 10-14)
 200  * Register: DUART_OPCR
 201  */
 202
 203 #define M_DUART_OPCR_RESERVED0      _SB_MAKEMASK1(0)   /* must be zero */
 204 #define M_DUART_OPC2_SEL            _SB_MAKEMASK1(1)
 205 #define M_DUART_OPCR_RESERVED1      _SB_MAKEMASK1(2)   /* must be zero */
 206 #define M_DUART_OPC3_SEL            _SB_MAKEMASK1(3)
 207 #define M_DUART_OPCR_RESERVED2      _SB_MAKEMASK(4, 4)  /* must be zero */
 208
 209 /*
 210  * DUART Aux Control Register (Table 10-15)
 211  * Register: DUART_AUX_CTRL
 212  */
 213
 214 #define M_DUART_IP0_CHNG_ENA        _SB_MAKEMASK1(0)
 215 #define M_DUART_IP1_CHNG_ENA        _SB_MAKEMASK1(1)
 216 #define M_DUART_IP2_CHNG_ENA        _SB_MAKEMASK1(2)
 217 #define M_DUART_IP3_CHNG_ENA        _SB_MAKEMASK1(3)
 218 #define M_DUART_ACR_RESERVED        _SB_MAKEMASK(4, 4)
 219
 220 #define M_DUART_CTS_CHNG_ENA        _SB_MAKEMASK1(0)
 221 #define M_DUART_CIN_CHNG_ENA        _SB_MAKEMASK1(2)
 222
 223 /*
 224  * DUART Interrupt Status Register (Table 10-16)
 225  * Register: DUART_ISR
 226  */
 227
 228 #define M_DUART_ISR_TX_A            _SB_MAKEMASK1(0)
 229
 230 #define S_DUART_ISR_RX_A            1
 231 #define M_DUART_ISR_RX_A            _SB_MAKEMASK1(S_DUART_ISR_RX_A)
 232 #define V_DUART_ISR_RX_A(x)         _SB_MAKEVALUE(x, S_DUART_ISR_RX_A)
 233 #define G_DUART_ISR_RX_A(x)         _SB_GETVALUE(x, S_DUART_ISR_RX_A, M_DUART_ISR_RX_A)
 234
 235 #define M_DUART_ISR_BRK_A           _SB_MAKEMASK1(2)
 236 #define M_DUART_ISR_IN_A            _SB_MAKEMASK1(3)
 237 #define M_DUART_ISR_ALL_A           _SB_MAKEMASK(4, 0)
 238
 239 #define M_DUART_ISR_TX_B            _SB_MAKEMASK1(4)
 240 #define M_DUART_ISR_RX_B            _SB_MAKEMASK1(5)
 241 #define M_DUART_ISR_BRK_B           _SB_MAKEMASK1(6)
 242 #define M_DUART_ISR_IN_B            _SB_MAKEMASK1(7)
 243 #define M_DUART_ISR_ALL_B           _SB_MAKEMASK(4, 4)
 244
 245 /*
 246  * DUART Channel A Interrupt Status Register (Table 10-17)
 247  * DUART Channel B Interrupt Status Register (Table 10-18)
 248  * Register: DUART_ISR_A
 249  * Register: DUART_ISR_B
 250  */
 251
 252 #define M_DUART_ISR_TX              _SB_MAKEMASK1(0)
 253 #define M_DUART_ISR_RX              _SB_MAKEMASK1(1)
 254 #define M_DUART_ISR_BRK             _SB_MAKEMASK1(2)
 255 #define M_DUART_ISR_IN              _SB_MAKEMASK1(3)
 256 #define M_DUART_ISR_ALL             _SB_MAKEMASK(4, 0)
 257 #define M_DUART_ISR_RESERVED        _SB_MAKEMASK(4, 4)
 258
 259 /*
 260  * DUART Interrupt Mask Register (Table 10-19)
 261  * Register: DUART_IMR
 262  */
 263
 264 #define M_DUART_IMR_TX_A            _SB_MAKEMASK1(0)
 265 #define M_DUART_IMR_RX_A            _SB_MAKEMASK1(1)
 266 #define M_DUART_IMR_BRK_A           _SB_MAKEMASK1(2)
 267 #define M_DUART_IMR_IN_A            _SB_MAKEMASK1(3)
 268 #define M_DUART_IMR_ALL_A           _SB_MAKEMASK(4, 0)
 269
 270 #define M_DUART_IMR_TX_B            _SB_MAKEMASK1(4)
 271 #define M_DUART_IMR_RX_B            _SB_MAKEMASK1(5)
 272 #define M_DUART_IMR_BRK_B           _SB_MAKEMASK1(6)
 273 #define M_DUART_IMR_IN_B            _SB_MAKEMASK1(7)
 274 #define M_DUART_IMR_ALL_B           _SB_MAKEMASK(4, 4)
 275
 276 /*
 277  * DUART Channel A Interrupt Mask Register (Table 10-20)
 278  * DUART Channel B Interrupt Mask Register (Table 10-21)
 279  * Register: DUART_IMR_A
 280  * Register: DUART_IMR_B
 281  */
 282
 283 #define M_DUART_IMR_TX              _SB_MAKEMASK1(0)
 284 #define M_DUART_IMR_RX              _SB_MAKEMASK1(1)
 285 #define M_DUART_IMR_BRK             _SB_MAKEMASK1(2)
 286 #define M_DUART_IMR_IN              _SB_MAKEMASK1(3)
 287 #define M_DUART_IMR_ALL             _SB_MAKEMASK(4, 0)
 288 #define M_DUART_IMR_RESERVED        _SB_MAKEMASK(4, 4)
 289
 290
 291 /*
 292  * DUART Output Port Set Register (Table 10-22)
 293  * Register: DUART_SET_OPR
 294  */
 295
 296 #define M_DUART_SET_OPR0            _SB_MAKEMASK1(0)
 297 #define M_DUART_SET_OPR1            _SB_MAKEMASK1(1)
 298 #define M_DUART_SET_OPR2            _SB_MAKEMASK1(2)
 299 #define M_DUART_SET_OPR3            _SB_MAKEMASK1(3)
 300 #define M_DUART_OPSR_RESERVED       _SB_MAKEMASK(4, 4)
 301
 302 /*
 303  * DUART Output Port Clear Register (Table 10-23)
 304  * Register: DUART_CLEAR_OPR
 305  */
 306
 307 #define M_DUART_CLR_OPR0            _SB_MAKEMASK1(0)
 308 #define M_DUART_CLR_OPR1            _SB_MAKEMASK1(1)
 309 #define M_DUART_CLR_OPR2            _SB_MAKEMASK1(2)
 310 #define M_DUART_CLR_OPR3            _SB_MAKEMASK1(3)
 311 #define M_DUART_OPCR_RESERVED       _SB_MAKEMASK(4, 4)
 312
 313 /*
 314  * DUART Output Port RTS Register (Table 10-24)
 315  * Register: DUART_OUT_PORT
 316  */
 317
 318 #define M_DUART_OUT_PIN_SET0        _SB_MAKEMASK1(0)
 319 #define M_DUART_OUT_PIN_SET1        _SB_MAKEMASK1(1)
 320 #define M_DUART_OUT_PIN_CLR0        _SB_MAKEMASK1(2)
 321 #define M_DUART_OUT_PIN_CLR1        _SB_MAKEMASK1(3)
 322 #define M_DUART_OPRR_RESERVED       _SB_MAKEMASK(4, 4)
 323
 324 #define M_DUART_OUT_PIN_SET(chan) \
 325     (chan == 0 ? M_DUART_OUT_PIN_SET0 : M_DUART_OUT_PIN_SET1)
 326 #define M_DUART_OUT_PIN_CLR(chan) \
 327     (chan == 0 ? M_DUART_OUT_PIN_CLR0 : M_DUART_OUT_PIN_CLR1)
 328
 329 #if SIBYTE_HDR_FEATURE(1250, PASS2) || SIBYTE_HDR_FEATURE(112x, PASS1) || SIBYTE_HDR_FEATURE_CHIP(1480)
 330 /*
 331  * Full Interrupt Control Register
 332  */
 333
 334 #define S_DUART_SIG_FULL           _SB_MAKE64(0)
 335 #define M_DUART_SIG_FULL           _SB_MAKEMASK(4, S_DUART_SIG_FULL)
 336 #define V_DUART_SIG_FULL(x)        _SB_MAKEVALUE(x, S_DUART_SIG_FULL)
 337 #define G_DUART_SIG_FULL(x)        _SB_GETVALUE(x, S_DUART_SIG_FULL, M_DUART_SIG_FULL)
 338
 339 #define S_DUART_INT_TIME           _SB_MAKE64(4)
 340 #define M_DUART_INT_TIME           _SB_MAKEMASK(4, S_DUART_INT_TIME)
 341 #define V_DUART_INT_TIME(x)        _SB_MAKEVALUE(x, S_DUART_INT_TIME)
 342 #define G_DUART_INT_TIME(x)        _SB_GETVALUE(x, S_DUART_INT_TIME, M_DUART_INT_TIME)
 343 #endif /* 1250 PASS2 || 112x PASS1 || 1480 */
 344
 345
 346 /* ********************************************************************** */
 347
 348
 349 #endif