arch/powerpc/include/asm/cpm1.h

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   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 int cpm1_gpiochip_add16(struct device *dev);
 609 int cpm1_gpiochip_add32(struct device *dev);
 610 
 611 #endif /* __CPM1__ */
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root/arch/powerpc/include/asm/cpm1.h

INCLUDED FROM
