1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * MPC8xx Communication Processor Module. 4 * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) 5 * 6 * This file contains structures and information for the communication 7 * processor channels. Some CPM control and status is available 8 * through the MPC8xx internal memory map. See immap.h for details. 9 * This file only contains what I need for the moment, not the total 10 * CPM capabilities. I (or someone else) will add definitions as they 11 * are needed. -- Dan 12 * 13 * On the MBX board, EPPC-Bug loads CPM microcode into the first 512 14 * bytes of the DP RAM and relocates the I2C parameter area to the 15 * IDMA1 space. The remaining DP RAM is available for buffer descriptors 16 * or other use. 17 */ 18 #ifndef __CPM1__ 19 #define __CPM1__ 20 21 #include <linux/init.h> 22 #include <asm/8xx_immap.h> 23 #include <asm/ptrace.h> 24 #include <asm/cpm.h> 25 26 /* CPM Command register. 27 */ 28 #define CPM_CR_RST ((ushort)0x8000) 29 #define CPM_CR_OPCODE ((ushort)0x0f00) 30 #define CPM_CR_CHAN ((ushort)0x00f0) 31 #define CPM_CR_FLG ((ushort)0x0001) 32 33 /* Channel numbers. 34 */ 35 #define CPM_CR_CH_SCC1 ((ushort)0x0000) 36 #define CPM_CR_CH_I2C ((ushort)0x0001) /* I2C and IDMA1 */ 37 #define CPM_CR_CH_SCC2 ((ushort)0x0004) 38 #define CPM_CR_CH_SPI ((ushort)0x0005) /* SPI / IDMA2 / Timers */ 39 #define CPM_CR_CH_TIMER CPM_CR_CH_SPI 40 #define CPM_CR_CH_SCC3 ((ushort)0x0008) 41 #define CPM_CR_CH_SMC1 ((ushort)0x0009) /* SMC1 / DSP1 */ 42 #define CPM_CR_CH_SCC4 ((ushort)0x000c) 43 #define CPM_CR_CH_SMC2 ((ushort)0x000d) /* SMC2 / DSP2 */ 44 45 #define mk_cr_cmd(CH, CMD) ((CMD << 8) | (CH << 4)) 46 47 /* Export the base address of the communication processor registers 48 * and dual port ram. 49 */ 50 extern cpm8xx_t __iomem *cpmp; /* Pointer to comm processor */ 51 52 #define cpm_dpalloc cpm_muram_alloc 53 #define cpm_dpfree cpm_muram_free 54 #define cpm_dpram_addr cpm_muram_addr 55 #define cpm_dpram_phys cpm_muram_dma 56 57 extern void cpm_setbrg(uint brg, uint rate); 58 59 extern void __init cpm_load_patch(cpm8xx_t *cp); 60 61 extern void cpm_reset(void); 62 63 /* Parameter RAM offsets. 64 */ 65 #define PROFF_SCC1 ((uint)0x0000) 66 #define PROFF_IIC ((uint)0x0080) 67 #define PROFF_SCC2 ((uint)0x0100) 68 #define PROFF_SPI ((uint)0x0180) 69 #define PROFF_SCC3 ((uint)0x0200) 70 #define PROFF_SMC1 ((uint)0x0280) 71 #define PROFF_SCC4 ((uint)0x0300) 72 #define PROFF_SMC2 ((uint)0x0380) 73 74 /* Define enough so I can at least use the serial port as a UART. 75 * The MBX uses SMC1 as the host serial port. 76 */ 77 typedef struct smc_uart { 78 ushort smc_rbase; /* Rx Buffer descriptor base address */ 79 ushort smc_tbase; /* Tx Buffer descriptor base address */ 80 u_char smc_rfcr; /* Rx function code */ 81 u_char smc_tfcr; /* Tx function code */ 82 ushort smc_mrblr; /* Max receive buffer length */ 83 uint smc_rstate; /* Internal */ 84 uint smc_idp; /* Internal */ 85 ushort smc_rbptr; /* Internal */ 86 ushort smc_ibc; /* Internal */ 87 uint smc_rxtmp; /* Internal */ 88 uint smc_tstate; /* Internal */ 89 uint smc_tdp; /* Internal */ 90 ushort smc_tbptr; /* Internal */ 91 ushort smc_tbc; /* Internal */ 92 uint smc_txtmp; /* Internal */ 93 ushort smc_maxidl; /* Maximum idle characters */ 94 ushort smc_tmpidl; /* Temporary idle counter */ 95 ushort smc_brklen; /* Last received break length */ 96 ushort smc_brkec; /* rcv'd break condition counter */ 97 ushort smc_brkcr; /* xmt break count register */ 98 ushort smc_rmask; /* Temporary bit mask */ 99 char res1[8]; /* Reserved */ 100 ushort smc_rpbase; /* Relocation pointer */ 101 } smc_uart_t; 102 103 /* Function code bits. 104 */ 105 #define SMC_EB ((u_char)0x10) /* Set big endian byte order */ 106 107 /* SMC uart mode register. 108 */ 109 #define SMCMR_REN ((ushort)0x0001) 110 #define SMCMR_TEN ((ushort)0x0002) 111 #define SMCMR_DM ((ushort)0x000c) 112 #define SMCMR_SM_GCI ((ushort)0x0000) 113 #define SMCMR_SM_UART ((ushort)0x0020) 114 #define SMCMR_SM_TRANS ((ushort)0x0030) 115 #define SMCMR_SM_MASK ((ushort)0x0030) 116 #define SMCMR_PM_EVEN ((ushort)0x0100) /* Even parity, else odd */ 117 #define SMCMR_REVD SMCMR_PM_EVEN 118 #define SMCMR_PEN ((ushort)0x0200) /* Parity enable */ 119 #define SMCMR_BS SMCMR_PEN 120 #define SMCMR_SL ((ushort)0x0400) /* Two stops, else one */ 121 #define SMCR_CLEN_MASK ((ushort)0x7800) /* Character length */ 122 #define smcr_mk_clen(C) (((C) << 11) & SMCR_CLEN_MASK) 123 124 /* SMC2 as Centronics parallel printer. It is half duplex, in that 125 * it can only receive or transmit. The parameter ram values for 126 * each direction are either unique or properly overlap, so we can 127 * include them in one structure. 128 */ 129 typedef struct smc_centronics { 130 ushort scent_rbase; 131 ushort scent_tbase; 132 u_char scent_cfcr; 133 u_char scent_smask; 134 ushort scent_mrblr; 135 uint scent_rstate; 136 uint scent_r_ptr; 137 ushort scent_rbptr; 138 ushort scent_r_cnt; 139 uint scent_rtemp; 140 uint scent_tstate; 141 uint scent_t_ptr; 142 ushort scent_tbptr; 143 ushort scent_t_cnt; 144 uint scent_ttemp; 145 ushort scent_max_sl; 146 ushort scent_sl_cnt; 147 ushort scent_character1; 148 ushort scent_character2; 149 ushort scent_character3; 150 ushort scent_character4; 151 ushort scent_character5; 152 ushort scent_character6; 153 ushort scent_character7; 154 ushort scent_character8; 155 ushort scent_rccm; 156 ushort scent_rccr; 157 } smc_cent_t; 158 159 /* Centronics Status Mask Register. 160 */ 161 #define SMC_CENT_F ((u_char)0x08) 162 #define SMC_CENT_PE ((u_char)0x04) 163 #define SMC_CENT_S ((u_char)0x02) 164 165 /* SMC Event and Mask register. 166 */ 167 #define SMCM_BRKE ((unsigned char)0x40) /* When in UART Mode */ 168 #define SMCM_BRK ((unsigned char)0x10) /* When in UART Mode */ 169 #define SMCM_TXE ((unsigned char)0x10) /* When in Transparent Mode */ 170 #define SMCM_BSY ((unsigned char)0x04) 171 #define SMCM_TX ((unsigned char)0x02) 172 #define SMCM_RX ((unsigned char)0x01) 173 174 /* Baud rate generators. 175 */ 176 #define CPM_BRG_RST ((uint)0x00020000) 177 #define CPM_BRG_EN ((uint)0x00010000) 178 #define CPM_BRG_EXTC_INT ((uint)0x00000000) 179 #define CPM_BRG_EXTC_CLK2 ((uint)0x00004000) 180 #define CPM_BRG_EXTC_CLK6 ((uint)0x00008000) 181 #define CPM_BRG_ATB ((uint)0x00002000) 182 #define CPM_BRG_CD_MASK ((uint)0x00001ffe) 183 #define CPM_BRG_DIV16 ((uint)0x00000001) 184 185 /* SI Clock Route Register 186 */ 187 #define SICR_RCLK_SCC1_BRG1 ((uint)0x00000000) 188 #define SICR_TCLK_SCC1_BRG1 ((uint)0x00000000) 189 #define SICR_RCLK_SCC2_BRG2 ((uint)0x00000800) 190 #define SICR_TCLK_SCC2_BRG2 ((uint)0x00000100) 191 #define SICR_RCLK_SCC3_BRG3 ((uint)0x00100000) 192 #define SICR_TCLK_SCC3_BRG3 ((uint)0x00020000) 193 #define SICR_RCLK_SCC4_BRG4 ((uint)0x18000000) 194 #define SICR_TCLK_SCC4_BRG4 ((uint)0x03000000) 195 196 /* SCCs. 197 */ 198 #define SCC_GSMRH_IRP ((uint)0x00040000) 199 #define SCC_GSMRH_GDE ((uint)0x00010000) 200 #define SCC_GSMRH_TCRC_CCITT ((uint)0x00008000) 201 #define SCC_GSMRH_TCRC_BISYNC ((uint)0x00004000) 202 #define SCC_GSMRH_TCRC_HDLC ((uint)0x00000000) 203 #define SCC_GSMRH_REVD ((uint)0x00002000) 204 #define SCC_GSMRH_TRX ((uint)0x00001000) 205 #define SCC_GSMRH_TTX ((uint)0x00000800) 206 #define SCC_GSMRH_CDP ((uint)0x00000400) 207 #define SCC_GSMRH_CTSP ((uint)0x00000200) 208 #define SCC_GSMRH_CDS ((uint)0x00000100) 209 #define SCC_GSMRH_CTSS ((uint)0x00000080) 210 #define SCC_GSMRH_TFL ((uint)0x00000040) 211 #define SCC_GSMRH_RFW ((uint)0x00000020) 212 #define SCC_GSMRH_TXSY ((uint)0x00000010) 213 #define SCC_GSMRH_SYNL16 ((uint)0x0000000c) 214 #define SCC_GSMRH_SYNL8 ((uint)0x00000008) 215 #define SCC_GSMRH_SYNL4 ((uint)0x00000004) 216 #define SCC_GSMRH_RTSM ((uint)0x00000002) 217 #define SCC_GSMRH_RSYN ((uint)0x00000001) 218 219 #define SCC_GSMRL_SIR ((uint)0x80000000) /* SCC2 only */ 220 #define SCC_GSMRL_EDGE_NONE ((uint)0x60000000) 221 #define SCC_GSMRL_EDGE_NEG ((uint)0x40000000) 222 #define SCC_GSMRL_EDGE_POS ((uint)0x20000000) 223 #define SCC_GSMRL_EDGE_BOTH ((uint)0x00000000) 224 #define SCC_GSMRL_TCI ((uint)0x10000000) 225 #define SCC_GSMRL_TSNC_3 ((uint)0x0c000000) 226 #define SCC_GSMRL_TSNC_4 ((uint)0x08000000) 227 #define SCC_GSMRL_TSNC_14 ((uint)0x04000000) 228 #define SCC_GSMRL_TSNC_INF ((uint)0x00000000) 229 #define SCC_GSMRL_RINV ((uint)0x02000000) 230 #define SCC_GSMRL_TINV ((uint)0x01000000) 231 #define SCC_GSMRL_TPL_128 ((uint)0x00c00000) 232 #define SCC_GSMRL_TPL_64 ((uint)0x00a00000) 233 #define SCC_GSMRL_TPL_48 ((uint)0x00800000) 234 #define SCC_GSMRL_TPL_32 ((uint)0x00600000) 235 #define SCC_GSMRL_TPL_16 ((uint)0x00400000) 236 #define SCC_GSMRL_TPL_8 ((uint)0x00200000) 237 #define SCC_GSMRL_TPL_NONE ((uint)0x00000000) 238 #define SCC_GSMRL_TPP_ALL1 ((uint)0x00180000) 239 #define SCC_GSMRL_TPP_01 ((uint)0x00100000) 240 #define SCC_GSMRL_TPP_10 ((uint)0x00080000) 241 #define SCC_GSMRL_TPP_ZEROS ((uint)0x00000000) 242 #define SCC_GSMRL_TEND ((uint)0x00040000) 243 #define SCC_GSMRL_TDCR_32 ((uint)0x00030000) 244 #define SCC_GSMRL_TDCR_16 ((uint)0x00020000) 245 #define SCC_GSMRL_TDCR_8 ((uint)0x00010000) 246 #define SCC_GSMRL_TDCR_1 ((uint)0x00000000) 247 #define SCC_GSMRL_RDCR_32 ((uint)0x0000c000) 248 #define SCC_GSMRL_RDCR_16 ((uint)0x00008000) 249 #define SCC_GSMRL_RDCR_8 ((uint)0x00004000) 250 #define SCC_GSMRL_RDCR_1 ((uint)0x00000000) 251 #define SCC_GSMRL_RENC_DFMAN ((uint)0x00003000) 252 #define SCC_GSMRL_RENC_MANCH ((uint)0x00002000) 253 #define SCC_GSMRL_RENC_FM0 ((uint)0x00001000) 254 #define SCC_GSMRL_RENC_NRZI ((uint)0x00000800) 255 #define SCC_GSMRL_RENC_NRZ ((uint)0x00000000) 256 #define SCC_GSMRL_TENC_DFMAN ((uint)0x00000600) 257 #define SCC_GSMRL_TENC_MANCH ((uint)0x00000400) 258 #define SCC_GSMRL_TENC_FM0 ((uint)0x00000200) 259 #define SCC_GSMRL_TENC_NRZI ((uint)0x00000100) 260 #define SCC_GSMRL_TENC_NRZ ((uint)0x00000000) 261 #define SCC_GSMRL_DIAG_LE ((uint)0x000000c0) /* Loop and echo */ 262 #define SCC_GSMRL_DIAG_ECHO ((uint)0x00000080) 263 #define SCC_GSMRL_DIAG_LOOP ((uint)0x00000040) 264 #define SCC_GSMRL_DIAG_NORM ((uint)0x00000000) 265 #define SCC_GSMRL_ENR ((uint)0x00000020) 266 #define SCC_GSMRL_ENT ((uint)0x00000010) 267 #define SCC_GSMRL_MODE_ENET ((uint)0x0000000c) 268 #define SCC_GSMRL_MODE_QMC ((uint)0x0000000a) 269 #define SCC_GSMRL_MODE_DDCMP ((uint)0x00000009) 270 #define SCC_GSMRL_MODE_BISYNC ((uint)0x00000008) 271 #define SCC_GSMRL_MODE_V14 ((uint)0x00000007) 272 #define SCC_GSMRL_MODE_AHDLC ((uint)0x00000006) 273 #define SCC_GSMRL_MODE_PROFIBUS ((uint)0x00000005) 274 #define SCC_GSMRL_MODE_UART ((uint)0x00000004) 275 #define SCC_GSMRL_MODE_SS7 ((uint)0x00000003) 276 #define SCC_GSMRL_MODE_ATALK ((uint)0x00000002) 277 #define SCC_GSMRL_MODE_HDLC ((uint)0x00000000) 278 279 #define SCC_TODR_TOD ((ushort)0x8000) 280 281 /* SCC Event and Mask register. 282 */ 283 #define SCCM_TXE ((unsigned char)0x10) 284 #define SCCM_BSY ((unsigned char)0x04) 285 #define SCCM_TX ((unsigned char)0x02) 286 #define SCCM_RX ((unsigned char)0x01) 287 288 typedef struct scc_param { 289 ushort scc_rbase; /* Rx Buffer descriptor base address */ 290 ushort scc_tbase; /* Tx Buffer descriptor base address */ 291 u_char scc_rfcr; /* Rx function code */ 292 u_char scc_tfcr; /* Tx function code */ 293 ushort scc_mrblr; /* Max receive buffer length */ 294 uint scc_rstate; /* Internal */ 295 uint scc_idp; /* Internal */ 296 ushort scc_rbptr; /* Internal */ 297 ushort scc_ibc; /* Internal */ 298 uint scc_rxtmp; /* Internal */ 299 uint scc_tstate; /* Internal */ 300 uint scc_tdp; /* Internal */ 301 ushort scc_tbptr; /* Internal */ 302 ushort scc_tbc; /* Internal */ 303 uint scc_txtmp; /* Internal */ 304 uint scc_rcrc; /* Internal */ 305 uint scc_tcrc; /* Internal */ 306 } sccp_t; 307 308 /* Function code bits. 309 */ 310 #define SCC_EB ((u_char)0x10) /* Set big endian byte order */ 311 312 /* CPM Ethernet through SCCx. 313 */ 314 typedef struct scc_enet { 315 sccp_t sen_genscc; 316 uint sen_cpres; /* Preset CRC */ 317 uint sen_cmask; /* Constant mask for CRC */ 318 uint sen_crcec; /* CRC Error counter */ 319 uint sen_alec; /* alignment error counter */ 320 uint sen_disfc; /* discard frame counter */ 321 ushort sen_pads; /* Tx short frame pad character */ 322 ushort sen_retlim; /* Retry limit threshold */ 323 ushort sen_retcnt; /* Retry limit counter */ 324 ushort sen_maxflr; /* maximum frame length register */ 325 ushort sen_minflr; /* minimum frame length register */ 326 ushort sen_maxd1; /* maximum DMA1 length */ 327 ushort sen_maxd2; /* maximum DMA2 length */ 328 ushort sen_maxd; /* Rx max DMA */ 329 ushort sen_dmacnt; /* Rx DMA counter */ 330 ushort sen_maxb; /* Max BD byte count */ 331 ushort sen_gaddr1; /* Group address filter */ 332 ushort sen_gaddr2; 333 ushort sen_gaddr3; 334 ushort sen_gaddr4; 335 uint sen_tbuf0data0; /* Save area 0 - current frame */ 336 uint sen_tbuf0data1; /* Save area 1 - current frame */ 337 uint sen_tbuf0rba; /* Internal */ 338 uint sen_tbuf0crc; /* Internal */ 339 ushort sen_tbuf0bcnt; /* Internal */ 340 ushort sen_paddrh; /* physical address (MSB) */ 341 ushort sen_paddrm; 342 ushort sen_paddrl; /* physical address (LSB) */ 343 ushort sen_pper; /* persistence */ 344 ushort sen_rfbdptr; /* Rx first BD pointer */ 345 ushort sen_tfbdptr; /* Tx first BD pointer */ 346 ushort sen_tlbdptr; /* Tx last BD pointer */ 347 uint sen_tbuf1data0; /* Save area 0 - current frame */ 348 uint sen_tbuf1data1; /* Save area 1 - current frame */ 349 uint sen_tbuf1rba; /* Internal */ 350 uint sen_tbuf1crc; /* Internal */ 351 ushort sen_tbuf1bcnt; /* Internal */ 352 ushort sen_txlen; /* Tx Frame length counter */ 353 ushort sen_iaddr1; /* Individual address filter */ 354 ushort sen_iaddr2; 355 ushort sen_iaddr3; 356 ushort sen_iaddr4; 357 ushort sen_boffcnt; /* Backoff counter */ 358 359 /* NOTE: Some versions of the manual have the following items 360 * incorrectly documented. Below is the proper order. 361 */ 362 ushort sen_taddrh; /* temp address (MSB) */ 363 ushort sen_taddrm; 364 ushort sen_taddrl; /* temp address (LSB) */ 365 } scc_enet_t; 366 367 /* SCC Event register as used by Ethernet. 368 */ 369 #define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */ 370 #define SCCE_ENET_TXE ((ushort)0x0010) /* Transmit Error */ 371 #define SCCE_ENET_RXF ((ushort)0x0008) /* Full frame received */ 372 #define SCCE_ENET_BSY ((ushort)0x0004) /* All incoming buffers full */ 373 #define SCCE_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */ 374 #define SCCE_ENET_RXB ((ushort)0x0001) /* A buffer was received */ 375 376 /* SCC Mode Register (PMSR) as used by Ethernet. 377 */ 378 #define SCC_PSMR_HBC ((ushort)0x8000) /* Enable heartbeat */ 379 #define SCC_PSMR_FC ((ushort)0x4000) /* Force collision */ 380 #define SCC_PSMR_RSH ((ushort)0x2000) /* Receive short frames */ 381 #define SCC_PSMR_IAM ((ushort)0x1000) /* Check individual hash */ 382 #define SCC_PSMR_ENCRC ((ushort)0x0800) /* Ethernet CRC mode */ 383 #define SCC_PSMR_PRO ((ushort)0x0200) /* Promiscuous mode */ 384 #define SCC_PSMR_BRO ((ushort)0x0100) /* Catch broadcast pkts */ 385 #define SCC_PSMR_SBT ((ushort)0x0080) /* Special backoff timer */ 386 #define SCC_PSMR_LPB ((ushort)0x0040) /* Set Loopback mode */ 387 #define SCC_PSMR_SIP ((ushort)0x0020) /* Sample Input Pins */ 388 #define SCC_PSMR_LCW ((ushort)0x0010) /* Late collision window */ 389 #define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */ 390 #define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */ 391 392 /* SCC as UART 393 */ 394 typedef struct scc_uart { 395 sccp_t scc_genscc; 396 char res1[8]; /* Reserved */ 397 ushort scc_maxidl; /* Maximum idle chars */ 398 ushort scc_idlc; /* temp idle counter */ 399 ushort scc_brkcr; /* Break count register */ 400 ushort scc_parec; /* receive parity error counter */ 401 ushort scc_frmec; /* receive framing error counter */ 402 ushort scc_nosec; /* receive noise counter */ 403 ushort scc_brkec; /* receive break condition counter */ 404 ushort scc_brkln; /* last received break length */ 405 ushort scc_uaddr1; /* UART address character 1 */ 406 ushort scc_uaddr2; /* UART address character 2 */ 407 ushort scc_rtemp; /* Temp storage */ 408 ushort scc_toseq; /* Transmit out of sequence char */ 409 ushort scc_char1; /* control character 1 */ 410 ushort scc_char2; /* control character 2 */ 411 ushort scc_char3; /* control character 3 */ 412 ushort scc_char4; /* control character 4 */ 413 ushort scc_char5; /* control character 5 */ 414 ushort scc_char6; /* control character 6 */ 415 ushort scc_char7; /* control character 7 */ 416 ushort scc_char8; /* control character 8 */ 417 ushort scc_rccm; /* receive control character mask */ 418 ushort scc_rccr; /* receive control character register */ 419 ushort scc_rlbc; /* receive last break character */ 420 } scc_uart_t; 421 422 /* SCC Event and Mask registers when it is used as a UART. 423 */ 424 #define UART_SCCM_GLR ((ushort)0x1000) 425 #define UART_SCCM_GLT ((ushort)0x0800) 426 #define UART_SCCM_AB ((ushort)0x0200) 427 #define UART_SCCM_IDL ((ushort)0x0100) 428 #define UART_SCCM_GRA ((ushort)0x0080) 429 #define UART_SCCM_BRKE ((ushort)0x0040) 430 #define UART_SCCM_BRKS ((ushort)0x0020) 431 #define UART_SCCM_CCR ((ushort)0x0008) 432 #define UART_SCCM_BSY ((ushort)0x0004) 433 #define UART_SCCM_TX ((ushort)0x0002) 434 #define UART_SCCM_RX ((ushort)0x0001) 435 436 /* The SCC PMSR when used as a UART. 437 */ 438 #define SCU_PSMR_FLC ((ushort)0x8000) 439 #define SCU_PSMR_SL ((ushort)0x4000) 440 #define SCU_PSMR_CL ((ushort)0x3000) 441 #define SCU_PSMR_UM ((ushort)0x0c00) 442 #define SCU_PSMR_FRZ ((ushort)0x0200) 443 #define SCU_PSMR_RZS ((ushort)0x0100) 444 #define SCU_PSMR_SYN ((ushort)0x0080) 445 #define SCU_PSMR_DRT ((ushort)0x0040) 446 #define SCU_PSMR_PEN ((ushort)0x0010) 447 #define SCU_PSMR_RPM ((ushort)0x000c) 448 #define SCU_PSMR_REVP ((ushort)0x0008) 449 #define SCU_PSMR_TPM ((ushort)0x0003) 450 #define SCU_PSMR_TEVP ((ushort)0x0002) 451 452 /* CPM Transparent mode SCC. 453 */ 454 typedef struct scc_trans { 455 sccp_t st_genscc; 456 uint st_cpres; /* Preset CRC */ 457 uint st_cmask; /* Constant mask for CRC */ 458 } scc_trans_t; 459 460 /* IIC parameter RAM. 461 */ 462 typedef struct iic { 463 ushort iic_rbase; /* Rx Buffer descriptor base address */ 464 ushort iic_tbase; /* Tx Buffer descriptor base address */ 465 u_char iic_rfcr; /* Rx function code */ 466 u_char iic_tfcr; /* Tx function code */ 467 ushort iic_mrblr; /* Max receive buffer length */ 468 uint iic_rstate; /* Internal */ 469 uint iic_rdp; /* Internal */ 470 ushort iic_rbptr; /* Internal */ 471 ushort iic_rbc; /* Internal */ 472 uint iic_rxtmp; /* Internal */ 473 uint iic_tstate; /* Internal */ 474 uint iic_tdp; /* Internal */ 475 ushort iic_tbptr; /* Internal */ 476 ushort iic_tbc; /* Internal */ 477 uint iic_txtmp; /* Internal */ 478 char res1[4]; /* Reserved */ 479 ushort iic_rpbase; /* Relocation pointer */ 480 char res2[2]; /* Reserved */ 481 } iic_t; 482 483 /* 484 * RISC Controller Configuration Register definitons 485 */ 486 #define RCCR_TIME 0x8000 /* RISC Timer Enable */ 487 #define RCCR_TIMEP(t) (((t) & 0x3F)<<8) /* RISC Timer Period */ 488 #define RCCR_TIME_MASK 0x00FF /* not RISC Timer related bits */ 489 490 /* RISC Timer Parameter RAM offset */ 491 #define PROFF_RTMR ((uint)0x01B0) 492 493 typedef struct risc_timer_pram { 494 unsigned short tm_base; /* RISC Timer Table Base Address */ 495 unsigned short tm_ptr; /* RISC Timer Table Pointer (internal) */ 496 unsigned short r_tmr; /* RISC Timer Mode Register */ 497 unsigned short r_tmv; /* RISC Timer Valid Register */ 498 unsigned long tm_cmd; /* RISC Timer Command Register */ 499 unsigned long tm_cnt; /* RISC Timer Internal Count */ 500 } rt_pram_t; 501 502 /* Bits in RISC Timer Command Register */ 503 #define TM_CMD_VALID 0x80000000 /* Valid - Enables the timer */ 504 #define TM_CMD_RESTART 0x40000000 /* Restart - for automatic restart */ 505 #define TM_CMD_PWM 0x20000000 /* Run in Pulse Width Modulation Mode */ 506 #define TM_CMD_NUM(n) (((n)&0xF)<<16) /* Timer Number */ 507 #define TM_CMD_PERIOD(p) ((p)&0xFFFF) /* Timer Period */ 508 509 /* CPM interrupts. There are nearly 32 interrupts generated by CPM 510 * channels or devices. All of these are presented to the PPC core 511 * as a single interrupt. The CPM interrupt handler dispatches its 512 * own handlers, in a similar fashion to the PPC core handler. We 513 * use the table as defined in the manuals (i.e. no special high 514 * priority and SCC1 == SCCa, etc...). 515 */ 516 #define CPMVEC_NR 32 517 #define CPMVEC_PIO_PC15 ((ushort)0x1f) 518 #define CPMVEC_SCC1 ((ushort)0x1e) 519 #define CPMVEC_SCC2 ((ushort)0x1d) 520 #define CPMVEC_SCC3 ((ushort)0x1c) 521 #define CPMVEC_SCC4 ((ushort)0x1b) 522 #define CPMVEC_PIO_PC14 ((ushort)0x1a) 523 #define CPMVEC_TIMER1 ((ushort)0x19) 524 #define CPMVEC_PIO_PC13 ((ushort)0x18) 525 #define CPMVEC_PIO_PC12 ((ushort)0x17) 526 #define CPMVEC_SDMA_CB_ERR ((ushort)0x16) 527 #define CPMVEC_IDMA1 ((ushort)0x15) 528 #define CPMVEC_IDMA2 ((ushort)0x14) 529 #define CPMVEC_TIMER2 ((ushort)0x12) 530 #define CPMVEC_RISCTIMER ((ushort)0x11) 531 #define CPMVEC_I2C ((ushort)0x10) 532 #define CPMVEC_PIO_PC11 ((ushort)0x0f) 533 #define CPMVEC_PIO_PC10 ((ushort)0x0e) 534 #define CPMVEC_TIMER3 ((ushort)0x0c) 535 #define CPMVEC_PIO_PC9 ((ushort)0x0b) 536 #define CPMVEC_PIO_PC8 ((ushort)0x0a) 537 #define CPMVEC_PIO_PC7 ((ushort)0x09) 538 #define CPMVEC_TIMER4 ((ushort)0x07) 539 #define CPMVEC_PIO_PC6 ((ushort)0x06) 540 #define CPMVEC_SPI ((ushort)0x05) 541 #define CPMVEC_SMC1 ((ushort)0x04) 542 #define CPMVEC_SMC2 ((ushort)0x03) 543 #define CPMVEC_PIO_PC5 ((ushort)0x02) 544 #define CPMVEC_PIO_PC4 ((ushort)0x01) 545 #define CPMVEC_ERROR ((ushort)0x00) 546 547 /* CPM interrupt configuration vector. 548 */ 549 #define CICR_SCD_SCC4 ((uint)0x00c00000) /* SCC4 @ SCCd */ 550 #define CICR_SCC_SCC3 ((uint)0x00200000) /* SCC3 @ SCCc */ 551 #define CICR_SCB_SCC2 ((uint)0x00040000) /* SCC2 @ SCCb */ 552 #define CICR_SCA_SCC1 ((uint)0x00000000) /* SCC1 @ SCCa */ 553 #define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrupt */ 554 #define CICR_HP_MASK ((uint)0x00001f00) /* Hi-pri int. */ 555 #define CICR_IEN ((uint)0x00000080) /* Int. enable */ 556 #define CICR_SPS ((uint)0x00000001) /* SCC Spread */ 557 558 #define CPM_PIN_INPUT 0 559 #define CPM_PIN_OUTPUT 1 560 #define CPM_PIN_PRIMARY 0 561 #define CPM_PIN_SECONDARY 2 562 #define CPM_PIN_GPIO 4 563 #define CPM_PIN_OPENDRAIN 8 564 #define CPM_PIN_FALLEDGE 16 565 #define CPM_PIN_ANYEDGE 0 566 567 enum cpm_port { 568 CPM_PORTA, 569 CPM_PORTB, 570 CPM_PORTC, 571 CPM_PORTD, 572 CPM_PORTE, 573 }; 574 575 void cpm1_set_pin(enum cpm_port port, int pin, int flags); 576 577 enum cpm_clk_dir { 578 CPM_CLK_RX, 579 CPM_CLK_TX, 580 CPM_CLK_RTX 581 }; 582 583 enum cpm_clk_target { 584 CPM_CLK_SCC1, 585 CPM_CLK_SCC2, 586 CPM_CLK_SCC3, 587 CPM_CLK_SCC4, 588 CPM_CLK_SMC1, 589 CPM_CLK_SMC2, 590 }; 591 592 enum cpm_clk { 593 CPM_BRG1, /* Baud Rate Generator 1 */ 594 CPM_BRG2, /* Baud Rate Generator 2 */ 595 CPM_BRG3, /* Baud Rate Generator 3 */ 596 CPM_BRG4, /* Baud Rate Generator 4 */ 597 CPM_CLK1, /* Clock 1 */ 598 CPM_CLK2, /* Clock 2 */ 599 CPM_CLK3, /* Clock 3 */ 600 CPM_CLK4, /* Clock 4 */ 601 CPM_CLK5, /* Clock 5 */ 602 CPM_CLK6, /* Clock 6 */ 603 CPM_CLK7, /* Clock 7 */ 604 CPM_CLK8, /* Clock 8 */ 605 }; 606 607 int cpm1_clk_setup(enum cpm_clk_target target, int clock, int mode); 608 609 #endif /* __CPM1__ */ 610