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_DSP1 ((uint)0x02c0) 72 #define PROFF_SCC4 ((uint)0x0300) 73 #define PROFF_SMC2 ((uint)0x0380) 74 75 /* Define enough so I can at least use the serial port as a UART. 76 * The MBX uses SMC1 as the host serial port. 77 */ 78 typedef struct smc_uart { 79 ushort smc_rbase; /* Rx Buffer descriptor base address */ 80 ushort smc_tbase; /* Tx Buffer descriptor base address */ 81 u_char smc_rfcr; /* Rx function code */ 82 u_char smc_tfcr; /* Tx function code */ 83 ushort smc_mrblr; /* Max receive buffer length */ 84 uint smc_rstate; /* Internal */ 85 uint smc_idp; /* Internal */ 86 ushort smc_rbptr; /* Internal */ 87 ushort smc_ibc; /* Internal */ 88 uint smc_rxtmp; /* Internal */ 89 uint smc_tstate; /* Internal */ 90 uint smc_tdp; /* Internal */ 91 ushort smc_tbptr; /* Internal */ 92 ushort smc_tbc; /* Internal */ 93 uint smc_txtmp; /* Internal */ 94 ushort smc_maxidl; /* Maximum idle characters */ 95 ushort smc_tmpidl; /* Temporary idle counter */ 96 ushort smc_brklen; /* Last received break length */ 97 ushort smc_brkec; /* rcv'd break condition counter */ 98 ushort smc_brkcr; /* xmt break count register */ 99 ushort smc_rmask; /* Temporary bit mask */ 100 char res1[8]; /* Reserved */ 101 ushort smc_rpbase; /* Relocation pointer */ 102 } smc_uart_t; 103 104 /* Function code bits. 105 */ 106 #define SMC_EB ((u_char)0x10) /* Set big endian byte order */ 107 108 /* SMC uart mode register. 109 */ 110 #define SMCMR_REN ((ushort)0x0001) 111 #define SMCMR_TEN ((ushort)0x0002) 112 #define SMCMR_DM ((ushort)0x000c) 113 #define SMCMR_SM_GCI ((ushort)0x0000) 114 #define SMCMR_SM_UART ((ushort)0x0020) 115 #define SMCMR_SM_TRANS ((ushort)0x0030) 116 #define SMCMR_SM_MASK ((ushort)0x0030) 117 #define SMCMR_PM_EVEN ((ushort)0x0100) /* Even parity, else odd */ 118 #define SMCMR_REVD SMCMR_PM_EVEN 119 #define SMCMR_PEN ((ushort)0x0200) /* Parity enable */ 120 #define SMCMR_BS SMCMR_PEN 121 #define SMCMR_SL ((ushort)0x0400) /* Two stops, else one */ 122 #define SMCR_CLEN_MASK ((ushort)0x7800) /* Character length */ 123 #define smcr_mk_clen(C) (((C) << 11) & SMCR_CLEN_MASK) 124 125 /* SMC2 as Centronics parallel printer. It is half duplex, in that 126 * it can only receive or transmit. The parameter ram values for 127 * each direction are either unique or properly overlap, so we can 128 * include them in one structure. 129 */ 130 typedef struct smc_centronics { 131 ushort scent_rbase; 132 ushort scent_tbase; 133 u_char scent_cfcr; 134 u_char scent_smask; 135 ushort scent_mrblr; 136 uint scent_rstate; 137 uint scent_r_ptr; 138 ushort scent_rbptr; 139 ushort scent_r_cnt; 140 uint scent_rtemp; 141 uint scent_tstate; 142 uint scent_t_ptr; 143 ushort scent_tbptr; 144 ushort scent_t_cnt; 145 uint scent_ttemp; 146 ushort scent_max_sl; 147 ushort scent_sl_cnt; 148 ushort scent_character1; 149 ushort scent_character2; 150 ushort scent_character3; 151 ushort scent_character4; 152 ushort scent_character5; 153 ushort scent_character6; 154 ushort scent_character7; 155 ushort scent_character8; 156 ushort scent_rccm; 157 ushort scent_rccr; 158 } smc_cent_t; 159 160 /* Centronics Status Mask Register. 161 */ 162 #define SMC_CENT_F ((u_char)0x08) 163 #define SMC_CENT_PE ((u_char)0x04) 164 #define SMC_CENT_S ((u_char)0x02) 165 166 /* SMC Event and Mask register. 167 */ 168 #define SMCM_BRKE ((unsigned char)0x40) /* When in UART Mode */ 169 #define SMCM_BRK ((unsigned char)0x10) /* When in UART Mode */ 170 #define SMCM_TXE ((unsigned char)0x10) /* When in Transparent Mode */ 171 #define SMCM_BSY ((unsigned char)0x04) 172 #define SMCM_TX ((unsigned char)0x02) 173 #define SMCM_RX ((unsigned char)0x01) 174 175 /* Baud rate generators. 176 */ 177 #define CPM_BRG_RST ((uint)0x00020000) 178 #define CPM_BRG_EN ((uint)0x00010000) 179 #define CPM_BRG_EXTC_INT ((uint)0x00000000) 180 #define CPM_BRG_EXTC_CLK2 ((uint)0x00004000) 181 #define CPM_BRG_EXTC_CLK6 ((uint)0x00008000) 182 #define CPM_BRG_ATB ((uint)0x00002000) 183 #define CPM_BRG_CD_MASK ((uint)0x00001ffe) 184 #define CPM_BRG_DIV16 ((uint)0x00000001) 185 186 /* SI Clock Route Register 187 */ 188 #define SICR_RCLK_SCC1_BRG1 ((uint)0x00000000) 189 #define SICR_TCLK_SCC1_BRG1 ((uint)0x00000000) 190 #define SICR_RCLK_SCC2_BRG2 ((uint)0x00000800) 191 #define SICR_TCLK_SCC2_BRG2 ((uint)0x00000100) 192 #define SICR_RCLK_SCC3_BRG3 ((uint)0x00100000) 193 #define SICR_TCLK_SCC3_BRG3 ((uint)0x00020000) 194 #define SICR_RCLK_SCC4_BRG4 ((uint)0x18000000) 195 #define SICR_TCLK_SCC4_BRG4 ((uint)0x03000000) 196 197 /* SCCs. 198 */ 199 #define SCC_GSMRH_IRP ((uint)0x00040000) 200 #define SCC_GSMRH_GDE ((uint)0x00010000) 201 #define SCC_GSMRH_TCRC_CCITT ((uint)0x00008000) 202 #define SCC_GSMRH_TCRC_BISYNC ((uint)0x00004000) 203 #define SCC_GSMRH_TCRC_HDLC ((uint)0x00000000) 204 #define SCC_GSMRH_REVD ((uint)0x00002000) 205 #define SCC_GSMRH_TRX ((uint)0x00001000) 206 #define SCC_GSMRH_TTX ((uint)0x00000800) 207 #define SCC_GSMRH_CDP ((uint)0x00000400) 208 #define SCC_GSMRH_CTSP ((uint)0x00000200) 209 #define SCC_GSMRH_CDS ((uint)0x00000100) 210 #define SCC_GSMRH_CTSS ((uint)0x00000080) 211 #define SCC_GSMRH_TFL ((uint)0x00000040) 212 #define SCC_GSMRH_RFW ((uint)0x00000020) 213 #define SCC_GSMRH_TXSY ((uint)0x00000010) 214 #define SCC_GSMRH_SYNL16 ((uint)0x0000000c) 215 #define SCC_GSMRH_SYNL8 ((uint)0x00000008) 216 #define SCC_GSMRH_SYNL4 ((uint)0x00000004) 217 #define SCC_GSMRH_RTSM ((uint)0x00000002) 218 #define SCC_GSMRH_RSYN ((uint)0x00000001) 219 220 #define SCC_GSMRL_SIR ((uint)0x80000000) /* SCC2 only */ 221 #define SCC_GSMRL_EDGE_NONE ((uint)0x60000000) 222 #define SCC_GSMRL_EDGE_NEG ((uint)0x40000000) 223 #define SCC_GSMRL_EDGE_POS ((uint)0x20000000) 224 #define SCC_GSMRL_EDGE_BOTH ((uint)0x00000000) 225 #define SCC_GSMRL_TCI ((uint)0x10000000) 226 #define SCC_GSMRL_TSNC_3 ((uint)0x0c000000) 227 #define SCC_GSMRL_TSNC_4 ((uint)0x08000000) 228 #define SCC_GSMRL_TSNC_14 ((uint)0x04000000) 229 #define SCC_GSMRL_TSNC_INF ((uint)0x00000000) 230 #define SCC_GSMRL_RINV ((uint)0x02000000) 231 #define SCC_GSMRL_TINV ((uint)0x01000000) 232 #define SCC_GSMRL_TPL_128 ((uint)0x00c00000) 233 #define SCC_GSMRL_TPL_64 ((uint)0x00a00000) 234 #define SCC_GSMRL_TPL_48 ((uint)0x00800000) 235 #define SCC_GSMRL_TPL_32 ((uint)0x00600000) 236 #define SCC_GSMRL_TPL_16 ((uint)0x00400000) 237 #define SCC_GSMRL_TPL_8 ((uint)0x00200000) 238 #define SCC_GSMRL_TPL_NONE ((uint)0x00000000) 239 #define SCC_GSMRL_TPP_ALL1 ((uint)0x00180000) 240 #define SCC_GSMRL_TPP_01 ((uint)0x00100000) 241 #define SCC_GSMRL_TPP_10 ((uint)0x00080000) 242 #define SCC_GSMRL_TPP_ZEROS ((uint)0x00000000) 243 #define SCC_GSMRL_TEND ((uint)0x00040000) 244 #define SCC_GSMRL_TDCR_32 ((uint)0x00030000) 245 #define SCC_GSMRL_TDCR_16 ((uint)0x00020000) 246 #define SCC_GSMRL_TDCR_8 ((uint)0x00010000) 247 #define SCC_GSMRL_TDCR_1 ((uint)0x00000000) 248 #define SCC_GSMRL_RDCR_32 ((uint)0x0000c000) 249 #define SCC_GSMRL_RDCR_16 ((uint)0x00008000) 250 #define SCC_GSMRL_RDCR_8 ((uint)0x00004000) 251 #define SCC_GSMRL_RDCR_1 ((uint)0x00000000) 252 #define SCC_GSMRL_RENC_DFMAN ((uint)0x00003000) 253 #define SCC_GSMRL_RENC_MANCH ((uint)0x00002000) 254 #define SCC_GSMRL_RENC_FM0 ((uint)0x00001000) 255 #define SCC_GSMRL_RENC_NRZI ((uint)0x00000800) 256 #define SCC_GSMRL_RENC_NRZ ((uint)0x00000000) 257 #define SCC_GSMRL_TENC_DFMAN ((uint)0x00000600) 258 #define SCC_GSMRL_TENC_MANCH ((uint)0x00000400) 259 #define SCC_GSMRL_TENC_FM0 ((uint)0x00000200) 260 #define SCC_GSMRL_TENC_NRZI ((uint)0x00000100) 261 #define SCC_GSMRL_TENC_NRZ ((uint)0x00000000) 262 #define SCC_GSMRL_DIAG_LE ((uint)0x000000c0) /* Loop and echo */ 263 #define SCC_GSMRL_DIAG_ECHO ((uint)0x00000080) 264 #define SCC_GSMRL_DIAG_LOOP ((uint)0x00000040) 265 #define SCC_GSMRL_DIAG_NORM ((uint)0x00000000) 266 #define SCC_GSMRL_ENR ((uint)0x00000020) 267 #define SCC_GSMRL_ENT ((uint)0x00000010) 268 #define SCC_GSMRL_MODE_ENET ((uint)0x0000000c) 269 #define SCC_GSMRL_MODE_QMC ((uint)0x0000000a) 270 #define SCC_GSMRL_MODE_DDCMP ((uint)0x00000009) 271 #define SCC_GSMRL_MODE_BISYNC ((uint)0x00000008) 272 #define SCC_GSMRL_MODE_V14 ((uint)0x00000007) 273 #define SCC_GSMRL_MODE_AHDLC ((uint)0x00000006) 274 #define SCC_GSMRL_MODE_PROFIBUS ((uint)0x00000005) 275 #define SCC_GSMRL_MODE_UART ((uint)0x00000004) 276 #define SCC_GSMRL_MODE_SS7 ((uint)0x00000003) 277 #define SCC_GSMRL_MODE_ATALK ((uint)0x00000002) 278 #define SCC_GSMRL_MODE_HDLC ((uint)0x00000000) 279 280 #define SCC_TODR_TOD ((ushort)0x8000) 281 282 /* SCC Event and Mask register. 283 */ 284 #define SCCM_TXE ((unsigned char)0x10) 285 #define SCCM_BSY ((unsigned char)0x04) 286 #define SCCM_TX ((unsigned char)0x02) 287 #define SCCM_RX ((unsigned char)0x01) 288 289 typedef struct scc_param { 290 ushort scc_rbase; /* Rx Buffer descriptor base address */ 291 ushort scc_tbase; /* Tx Buffer descriptor base address */ 292 u_char scc_rfcr; /* Rx function code */ 293 u_char scc_tfcr; /* Tx function code */ 294 ushort scc_mrblr; /* Max receive buffer length */ 295 uint scc_rstate; /* Internal */ 296 uint scc_idp; /* Internal */ 297 ushort scc_rbptr; /* Internal */ 298 ushort scc_ibc; /* Internal */ 299 uint scc_rxtmp; /* Internal */ 300 uint scc_tstate; /* Internal */ 301 uint scc_tdp; /* Internal */ 302 ushort scc_tbptr; /* Internal */ 303 ushort scc_tbc; /* Internal */ 304 uint scc_txtmp; /* Internal */ 305 uint scc_rcrc; /* Internal */ 306 uint scc_tcrc; /* Internal */ 307 } sccp_t; 308 309 /* Function code bits. 310 */ 311 #define SCC_EB ((u_char)0x10) /* Set big endian byte order */ 312 313 /* CPM Ethernet through SCCx. 314 */ 315 typedef struct scc_enet { 316 sccp_t sen_genscc; 317 uint sen_cpres; /* Preset CRC */ 318 uint sen_cmask; /* Constant mask for CRC */ 319 uint sen_crcec; /* CRC Error counter */ 320 uint sen_alec; /* alignment error counter */ 321 uint sen_disfc; /* discard frame counter */ 322 ushort sen_pads; /* Tx short frame pad character */ 323 ushort sen_retlim; /* Retry limit threshold */ 324 ushort sen_retcnt; /* Retry limit counter */ 325 ushort sen_maxflr; /* maximum frame length register */ 326 ushort sen_minflr; /* minimum frame length register */ 327 ushort sen_maxd1; /* maximum DMA1 length */ 328 ushort sen_maxd2; /* maximum DMA2 length */ 329 ushort sen_maxd; /* Rx max DMA */ 330 ushort sen_dmacnt; /* Rx DMA counter */ 331 ushort sen_maxb; /* Max BD byte count */ 332 ushort sen_gaddr1; /* Group address filter */ 333 ushort sen_gaddr2; 334 ushort sen_gaddr3; 335 ushort sen_gaddr4; 336 uint sen_tbuf0data0; /* Save area 0 - current frame */ 337 uint sen_tbuf0data1; /* Save area 1 - current frame */ 338 uint sen_tbuf0rba; /* Internal */ 339 uint sen_tbuf0crc; /* Internal */ 340 ushort sen_tbuf0bcnt; /* Internal */ 341 ushort sen_paddrh; /* physical address (MSB) */ 342 ushort sen_paddrm; 343 ushort sen_paddrl; /* physical address (LSB) */ 344 ushort sen_pper; /* persistence */ 345 ushort sen_rfbdptr; /* Rx first BD pointer */ 346 ushort sen_tfbdptr; /* Tx first BD pointer */ 347 ushort sen_tlbdptr; /* Tx last BD pointer */ 348 uint sen_tbuf1data0; /* Save area 0 - current frame */ 349 uint sen_tbuf1data1; /* Save area 1 - current frame */ 350 uint sen_tbuf1rba; /* Internal */ 351 uint sen_tbuf1crc; /* Internal */ 352 ushort sen_tbuf1bcnt; /* Internal */ 353 ushort sen_txlen; /* Tx Frame length counter */ 354 ushort sen_iaddr1; /* Individual address filter */ 355 ushort sen_iaddr2; 356 ushort sen_iaddr3; 357 ushort sen_iaddr4; 358 ushort sen_boffcnt; /* Backoff counter */ 359 360 /* NOTE: Some versions of the manual have the following items 361 * incorrectly documented. Below is the proper order. 362 */ 363 ushort sen_taddrh; /* temp address (MSB) */ 364 ushort sen_taddrm; 365 ushort sen_taddrl; /* temp address (LSB) */ 366 } scc_enet_t; 367 368 /* SCC Event register as used by Ethernet. 369 */ 370 #define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */ 371 #define SCCE_ENET_TXE ((ushort)0x0010) /* Transmit Error */ 372 #define SCCE_ENET_RXF ((ushort)0x0008) /* Full frame received */ 373 #define SCCE_ENET_BSY ((ushort)0x0004) /* All incoming buffers full */ 374 #define SCCE_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */ 375 #define SCCE_ENET_RXB ((ushort)0x0001) /* A buffer was received */ 376 377 /* SCC Mode Register (PMSR) as used by Ethernet. 378 */ 379 #define SCC_PSMR_HBC ((ushort)0x8000) /* Enable heartbeat */ 380 #define SCC_PSMR_FC ((ushort)0x4000) /* Force collision */ 381 #define SCC_PSMR_RSH ((ushort)0x2000) /* Receive short frames */ 382 #define SCC_PSMR_IAM ((ushort)0x1000) /* Check individual hash */ 383 #define SCC_PSMR_ENCRC ((ushort)0x0800) /* Ethernet CRC mode */ 384 #define SCC_PSMR_PRO ((ushort)0x0200) /* Promiscuous mode */ 385 #define SCC_PSMR_BRO ((ushort)0x0100) /* Catch broadcast pkts */ 386 #define SCC_PSMR_SBT ((ushort)0x0080) /* Special backoff timer */ 387 #define SCC_PSMR_LPB ((ushort)0x0040) /* Set Loopback mode */ 388 #define SCC_PSMR_SIP ((ushort)0x0020) /* Sample Input Pins */ 389 #define SCC_PSMR_LCW ((ushort)0x0010) /* Late collision window */ 390 #define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */ 391 #define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */ 392 393 /* SCC as UART 394 */ 395 typedef struct scc_uart { 396 sccp_t scc_genscc; 397 char res1[8]; /* Reserved */ 398 ushort scc_maxidl; /* Maximum idle chars */ 399 ushort scc_idlc; /* temp idle counter */ 400 ushort scc_brkcr; /* Break count register */ 401 ushort scc_parec; /* receive parity error counter */ 402 ushort scc_frmec; /* receive framing error counter */ 403 ushort scc_nosec; /* receive noise counter */ 404 ushort scc_brkec; /* receive break condition counter */ 405 ushort scc_brkln; /* last received break length */ 406 ushort scc_uaddr1; /* UART address character 1 */ 407 ushort scc_uaddr2; /* UART address character 2 */ 408 ushort scc_rtemp; /* Temp storage */ 409 ushort scc_toseq; /* Transmit out of sequence char */ 410 ushort scc_char1; /* control character 1 */ 411 ushort scc_char2; /* control character 2 */ 412 ushort scc_char3; /* control character 3 */ 413 ushort scc_char4; /* control character 4 */ 414 ushort scc_char5; /* control character 5 */ 415 ushort scc_char6; /* control character 6 */ 416 ushort scc_char7; /* control character 7 */ 417 ushort scc_char8; /* control character 8 */ 418 ushort scc_rccm; /* receive control character mask */ 419 ushort scc_rccr; /* receive control character register */ 420 ushort scc_rlbc; /* receive last break character */ 421 } scc_uart_t; 422 423 /* SCC Event and Mask registers when it is used as a UART. 424 */ 425 #define UART_SCCM_GLR ((ushort)0x1000) 426 #define UART_SCCM_GLT ((ushort)0x0800) 427 #define UART_SCCM_AB ((ushort)0x0200) 428 #define UART_SCCM_IDL ((ushort)0x0100) 429 #define UART_SCCM_GRA ((ushort)0x0080) 430 #define UART_SCCM_BRKE ((ushort)0x0040) 431 #define UART_SCCM_BRKS ((ushort)0x0020) 432 #define UART_SCCM_CCR ((ushort)0x0008) 433 #define UART_SCCM_BSY ((ushort)0x0004) 434 #define UART_SCCM_TX ((ushort)0x0002) 435 #define UART_SCCM_RX ((ushort)0x0001) 436 437 /* The SCC PMSR when used as a UART. 438 */ 439 #define SCU_PSMR_FLC ((ushort)0x8000) 440 #define SCU_PSMR_SL ((ushort)0x4000) 441 #define SCU_PSMR_CL ((ushort)0x3000) 442 #define SCU_PSMR_UM ((ushort)0x0c00) 443 #define SCU_PSMR_FRZ ((ushort)0x0200) 444 #define SCU_PSMR_RZS ((ushort)0x0100) 445 #define SCU_PSMR_SYN ((ushort)0x0080) 446 #define SCU_PSMR_DRT ((ushort)0x0040) 447 #define SCU_PSMR_PEN ((ushort)0x0010) 448 #define SCU_PSMR_RPM ((ushort)0x000c) 449 #define SCU_PSMR_REVP ((ushort)0x0008) 450 #define SCU_PSMR_TPM ((ushort)0x0003) 451 #define SCU_PSMR_TEVP ((ushort)0x0002) 452 453 /* CPM Transparent mode SCC. 454 */ 455 typedef struct scc_trans { 456 sccp_t st_genscc; 457 uint st_cpres; /* Preset CRC */ 458 uint st_cmask; /* Constant mask for CRC */ 459 } scc_trans_t; 460 461 /* IIC parameter RAM. 462 */ 463 typedef struct iic { 464 ushort iic_rbase; /* Rx Buffer descriptor base address */ 465 ushort iic_tbase; /* Tx Buffer descriptor base address */ 466 u_char iic_rfcr; /* Rx function code */ 467 u_char iic_tfcr; /* Tx function code */ 468 ushort iic_mrblr; /* Max receive buffer length */ 469 uint iic_rstate; /* Internal */ 470 uint iic_rdp; /* Internal */ 471 ushort iic_rbptr; /* Internal */ 472 ushort iic_rbc; /* Internal */ 473 uint iic_rxtmp; /* Internal */ 474 uint iic_tstate; /* Internal */ 475 uint iic_tdp; /* Internal */ 476 ushort iic_tbptr; /* Internal */ 477 ushort iic_tbc; /* Internal */ 478 uint iic_txtmp; /* Internal */ 479 char res1[4]; /* Reserved */ 480 ushort iic_rpbase; /* Relocation pointer */ 481 char res2[2]; /* Reserved */ 482 } iic_t; 483 484 /* 485 * RISC Controller Configuration Register definitons 486 */ 487 #define RCCR_TIME 0x8000 /* RISC Timer Enable */ 488 #define RCCR_TIMEP(t) (((t) & 0x3F)<<8) /* RISC Timer Period */ 489 #define RCCR_TIME_MASK 0x00FF /* not RISC Timer related bits */ 490 491 /* RISC Timer Parameter RAM offset */ 492 #define PROFF_RTMR ((uint)0x01B0) 493 494 typedef struct risc_timer_pram { 495 unsigned short tm_base; /* RISC Timer Table Base Address */ 496 unsigned short tm_ptr; /* RISC Timer Table Pointer (internal) */ 497 unsigned short r_tmr; /* RISC Timer Mode Register */ 498 unsigned short r_tmv; /* RISC Timer Valid Register */ 499 unsigned long tm_cmd; /* RISC Timer Command Register */ 500 unsigned long tm_cnt; /* RISC Timer Internal Count */ 501 } rt_pram_t; 502 503 /* Bits in RISC Timer Command Register */ 504 #define TM_CMD_VALID 0x80000000 /* Valid - Enables the timer */ 505 #define TM_CMD_RESTART 0x40000000 /* Restart - for automatic restart */ 506 #define TM_CMD_PWM 0x20000000 /* Run in Pulse Width Modulation Mode */ 507 #define TM_CMD_NUM(n) (((n)&0xF)<<16) /* Timer Number */ 508 #define TM_CMD_PERIOD(p) ((p)&0xFFFF) /* Timer Period */ 509 510 /* CPM interrupts. There are nearly 32 interrupts generated by CPM 511 * channels or devices. All of these are presented to the PPC core 512 * as a single interrupt. The CPM interrupt handler dispatches its 513 * own handlers, in a similar fashion to the PPC core handler. We 514 * use the table as defined in the manuals (i.e. no special high 515 * priority and SCC1 == SCCa, etc...). 516 */ 517 #define CPMVEC_NR 32 518 #define CPMVEC_PIO_PC15 ((ushort)0x1f) 519 #define CPMVEC_SCC1 ((ushort)0x1e) 520 #define CPMVEC_SCC2 ((ushort)0x1d) 521 #define CPMVEC_SCC3 ((ushort)0x1c) 522 #define CPMVEC_SCC4 ((ushort)0x1b) 523 #define CPMVEC_PIO_PC14 ((ushort)0x1a) 524 #define CPMVEC_TIMER1 ((ushort)0x19) 525 #define CPMVEC_PIO_PC13 ((ushort)0x18) 526 #define CPMVEC_PIO_PC12 ((ushort)0x17) 527 #define CPMVEC_SDMA_CB_ERR ((ushort)0x16) 528 #define CPMVEC_IDMA1 ((ushort)0x15) 529 #define CPMVEC_IDMA2 ((ushort)0x14) 530 #define CPMVEC_TIMER2 ((ushort)0x12) 531 #define CPMVEC_RISCTIMER ((ushort)0x11) 532 #define CPMVEC_I2C ((ushort)0x10) 533 #define CPMVEC_PIO_PC11 ((ushort)0x0f) 534 #define CPMVEC_PIO_PC10 ((ushort)0x0e) 535 #define CPMVEC_TIMER3 ((ushort)0x0c) 536 #define CPMVEC_PIO_PC9 ((ushort)0x0b) 537 #define CPMVEC_PIO_PC8 ((ushort)0x0a) 538 #define CPMVEC_PIO_PC7 ((ushort)0x09) 539 #define CPMVEC_TIMER4 ((ushort)0x07) 540 #define CPMVEC_PIO_PC6 ((ushort)0x06) 541 #define CPMVEC_SPI ((ushort)0x05) 542 #define CPMVEC_SMC1 ((ushort)0x04) 543 #define CPMVEC_SMC2 ((ushort)0x03) 544 #define CPMVEC_PIO_PC5 ((ushort)0x02) 545 #define CPMVEC_PIO_PC4 ((ushort)0x01) 546 #define CPMVEC_ERROR ((ushort)0x00) 547 548 /* CPM interrupt configuration vector. 549 */ 550 #define CICR_SCD_SCC4 ((uint)0x00c00000) /* SCC4 @ SCCd */ 551 #define CICR_SCC_SCC3 ((uint)0x00200000) /* SCC3 @ SCCc */ 552 #define CICR_SCB_SCC2 ((uint)0x00040000) /* SCC2 @ SCCb */ 553 #define CICR_SCA_SCC1 ((uint)0x00000000) /* SCC1 @ SCCa */ 554 #define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrupt */ 555 #define CICR_HP_MASK ((uint)0x00001f00) /* Hi-pri int. */ 556 #define CICR_IEN ((uint)0x00000080) /* Int. enable */ 557 #define CICR_SPS ((uint)0x00000001) /* SCC Spread */ 558 559 #define CPM_PIN_INPUT 0 560 #define CPM_PIN_OUTPUT 1 561 #define CPM_PIN_PRIMARY 0 562 #define CPM_PIN_SECONDARY 2 563 #define CPM_PIN_GPIO 4 564 #define CPM_PIN_OPENDRAIN 8 565 #define CPM_PIN_FALLEDGE 16 566 #define CPM_PIN_ANYEDGE 0 567 568 enum cpm_port { 569 CPM_PORTA, 570 CPM_PORTB, 571 CPM_PORTC, 572 CPM_PORTD, 573 CPM_PORTE, 574 }; 575 576 void cpm1_set_pin(enum cpm_port port, int pin, int flags); 577 578 enum cpm_clk_dir { 579 CPM_CLK_RX, 580 CPM_CLK_TX, 581 CPM_CLK_RTX 582 }; 583 584 enum cpm_clk_target { 585 CPM_CLK_SCC1, 586 CPM_CLK_SCC2, 587 CPM_CLK_SCC3, 588 CPM_CLK_SCC4, 589 CPM_CLK_SMC1, 590 CPM_CLK_SMC2, 591 }; 592 593 enum cpm_clk { 594 CPM_BRG1, /* Baud Rate Generator 1 */ 595 CPM_BRG2, /* Baud Rate Generator 2 */ 596 CPM_BRG3, /* Baud Rate Generator 3 */ 597 CPM_BRG4, /* Baud Rate Generator 4 */ 598 CPM_CLK1, /* Clock 1 */ 599 CPM_CLK2, /* Clock 2 */ 600 CPM_CLK3, /* Clock 3 */ 601 CPM_CLK4, /* Clock 4 */ 602 CPM_CLK5, /* Clock 5 */ 603 CPM_CLK6, /* Clock 6 */ 604 CPM_CLK7, /* Clock 7 */ 605 CPM_CLK8, /* Clock 8 */ 606 }; 607 608 int cpm1_clk_setup(enum cpm_clk_target target, int clock, int mode); 609 int cpm1_gpiochip_add16(struct device *dev); 610 int cpm1_gpiochip_add32(struct device *dev); 611 612 #endif /* __CPM1__ */ 613