LXR uboot/board/gen860t/ioport.c

   1/*
   2 * (C) Copyright 2000
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <mpc8xx.h>
  10#include <asm/8xx_immap.h>
  11#include "ioport.h"
  12
  13#if 0
  14#define IOPORT_DEBUG
  15#endif
  16
  17#ifdef  IOPORT_DEBUG
  18#define PRINTF(fmt,args...) printf (fmt ,##args)
  19#else
  20#define PRINTF(fmt,args...)
  21#endif
  22
  23/*
  24 * The ioport configuration table.
  25 */
  26const mpc8xx_iop_conf_t iop_conf_tab[NUM_PORTS][PORT_BITS] = {
  27    /*
  28         * Port A configuration
  29         * Pin  Signal                                  Type    Active  Initial state
  30         * PA7  fpgaProgramLowOut               Out             Low                     High
  31         * PA1  fpgaCoreVoltageFailLow  In              Low                     N/A
  32         */
  33    {   /*          conf ppar psor pdir podr pdat pint     function             */
  34        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /* No pin                       */
  35        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /* No pin                       */
  36        /* PA15 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  37        /* PA14 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  38        /* PA13 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  39        /* PA12 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  40        /* PA11 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  41        /* PA10 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  42        /* PA9  */ { 1,   0,   0,   1,   0,   0,   0 }, /* grn bicolor LED 1*/
  43        /* PA8  */ { 1,   0,   0,   1,   0,   0,   0 }, /* red bicolor LED 1*/
  44        /* PA7  */ { 1,   0,   0,   1,   0,   1,   0 }, /* fpgaProgramLow       */
  45        /* PA6  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  46        /* PA5  */ { 1,   0,   0,   1,   0,   0,   0 }, /* grn bicolor LED 0*/
  47        /* PA4  */ { 1,   0,   0,   1,   0,   0,   0 }, /* red bicolor LED 0*/
  48        /* PA3  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  49        /* PA2  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  50#if !defined(CONFIG_SC)
  51        /* PA1  */ { 1,   0,   0,   0,   0,   0,   0 }, /*      fpgaCoreVoltageFail*/
  52#else
  53        /* PA1  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  54#endif
  55        /* PA0  */ { 0,   0,   0,   0,   0,   0,   0 }  /*      */
  56    },
  57
  58        /*
  59         * Port B configuration
  60         * Pin          Signal                  Type            Active          Initial state
  61         * PB14         docBusyLowIn    In                      Low                     X
  62         * PB15         gpio1Sig                Out                     High            Low
  63         * PB16         fpgaDoneBi              In                      High            X
  64         * PB17         swBitOkLowOut   Out                     Low                     High
  65         * PB19         speakerVolSig   Out/Hi-Z        High/Low        High (Hi-Z)
  66         * PB22         fpgaInitLowBi   In                      Low                     X
  67         * PB23         batteryOkSig    In                      High            X
  68         * PB31         pulseCatcherClr Out                     High            0
  69         */
  70        {       /*          conf ppar psor pdir podr pdat pint    function                      */
  71#if !defined(CONFIG_SC)
  72        /* PB31 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  73#else
  74        /* PB31 */ { 1,   0,   0,   1,   0,   0,   0 }, /* pulseCatcherClr      */
  75#endif
  76        /* PB30 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  77        /* PB29 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  78        /* PB28 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  79        /* PB27 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  80        /* PB26 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  81        /* PB25 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  82        /* PB24 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  83#if !defined(CONFIG_SC)
  84        /* PB23 */ { 1,   0,   0,   0,   0,   0,   0 }, /* batteryOk            */
  85#else
  86        /* PB23 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  87#endif
  88        /* PB22 */ { 1,   0,   0,   0,   0,   0,   0 }, /* fpgaInitLowBi        */
  89        /* PB21 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  90        /* PB20 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  91#if !defined(CONFIG_SC)
  92        /* PB19 */ { 1,   0,   0,   1,   1,   1,   0 }, /* speakerVol           */
  93#else
  94        /* PB19 */ { 0,   0,   0,   1,   1,   1,   0 }, /*      */
  95#endif
  96        /* PB18 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
  97        /* PB17 */ { 1,   0,   0,   1,   0,   1,   0 }, /* swBitOkLow           */
  98        /* PB16 */ { 1,   0,   0,   0,   0,   0,   0 }, /* fpgaDone                     */
  99        /* PB15 */ { 1,   0,   0,   1,   0,   0,   0 }, /* gpio1                        */
 100#if !defined(CONFIG_SC)
 101        /* PB14 */ { 1,   0,   0,   0,   0,   0,   0 }  /* docBusyLow           */
 102#else
 103        /* PB14 */ { 0,   0,   0,   0,   0,   0,   0 }  /*      */
 104#endif
 105        },
 106
 107        /*
 108         * Port C configuration
 109         * Pin          Signal                          Type    Active          Initial state
 110         * PC4          i2cBus1EnSig            Out             High            High
 111         * PC5          i2cBus2EnSig            Out             High            High
 112         * PC6          gpio0Sig                        Out             High            Low
 113         * PC8          i2cBus3EnSig            Out             High            High
 114         * PC10         i2cBus4EnSig            Out             High            High
 115         * PC11         fpgaResetLowOut         Out             Low                     High
 116         * PC12         systemBitOkIn           In              High            X
 117         * PC15         selfDreqLow                     In              Low                     X
 118         */
 119        {       /*          conf ppar psor pdir podr pdat pint    function                      */
 120        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 121        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 122        /* PC15 */ { 1,   0,   0,   0,   0,   0,   0 }, /* selfDreqLowIn        */
 123        /* PC14 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 124        /* PC13 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 125#if !defined(CONFIG_SC)
 126        /* PC12 */ { 1,   0,   0,   0,   0,   0,   0 }, /* systemBitOkIn        */
 127#else
 128        /* PC12 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 129#endif
 130        /* PC11 */ { 1,   0,   0,   1,   0,   1,   0 }, /* fpgaResetLowOut      */
 131#if !defined(CONFIG_SC)
 132        /* PC10 */ { 1,   0,   0,   1,   0,   1,   0 }, /* i2cBus4EnSig         */
 133#else
 134        /* PC10 */ { 0,   0,   0,   1,   0,   1,   0 }, /*      */
 135#endif
 136        /* PC9  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 137#if !defined(CONFIG_SC)
 138        /* PC8  */ { 1,   0,   0,   1,   0,   1,   0 }, /* i2cBus3EnSig         */
 139#else
 140        /* PC8  */ { 0,   0,   0,   1,   0,   1,   0 }, /*      */
 141#endif
 142        /* PC7  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 143        /* PC6  */ { 1,   0,   0,   1,   0,   1,   0 }, /* gpio0                        */
 144#if !defined(CONFIG_SC)
 145        /* PC5  */ { 1,   0,   0,   1,   0,   1,   0 }, /* i2cBus2EnSig         */
 146        /* PC4  */ { 1,   0,   0,   1,   0,   1,   0 }, /* i2cBus1EnSig         */
 147#else
 148        /* PC5  */ { 0,   0,   0,   1,   0,   1,   0 }, /*      */
 149        /* PC4  */ { 0,   0,   0,   1,   0,   1,   0 }, /*      */
 150#endif
 151        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 152        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 153        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 154        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }  /*      */
 155        },
 156
 157        /*
 158         * Port D configuration
 159         */
 160        {       /*          conf ppar psor pdir podr pdat pint     function                     */
 161        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 162        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 163        /* PD15 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 164        /* PD14 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 165        /* PD13 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 166        /* PD12 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 167        /* PD11 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 168        /* PD10 */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 169        /* PD9  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 170        /* PD8  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 171        /* PD7  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 172        /* PD6  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 173        /* PD5  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 174        /* PD4  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 175        /* PD3  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 176        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 177        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*      */
 178        /* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }  /*      */
 179        }
 180};
 181
 182/*
 183 * Configure the MPC8XX I/O ports per the ioport configuration table
 184 * (taken from ./arch/powerpc/cpu/mpc8260/cpu_init.c)
 185 */
 186void config_mpc8xx_ioports (volatile immap_t * immr)
 187{
 188        int portnum;
 189
 190        for (portnum = 0; portnum < NUM_PORTS; portnum++) {
 191                uint pmsk = 0, ppar = 0, psor = 0, pdir = 0;
 192                uint podr = 0, pdat = 0, pint = 0;
 193                uint msk = 1;
 194                mpc8xx_iop_conf_t *iopc =
 195                        (mpc8xx_iop_conf_t *) & iop_conf_tab[portnum][0];
 196                mpc8xx_iop_conf_t *eiopc = iopc + PORT_BITS;
 197
 198                /*
 199                 * For all ports except port B, ignore the two don't care entries
 200                 * in the configuration tables.
 201                 */
 202                if (portnum != 1) {
 203                        iopc = (mpc8xx_iop_conf_t *) &
 204                                iop_conf_tab[portnum][2];
 205                }
 206
 207                /*
 208                 * NOTE: index 0 refers to pin 17, index 17 refers to pin 0
 209                 */
 210                while (iopc < eiopc) {
 211                        if (iopc->conf) {
 212                                pmsk |= msk;
 213                                if (iopc->ppar)
 214                                        ppar |= msk;
 215                                if (iopc->psor)
 216                                        psor |= msk;
 217                                if (iopc->pdir)
 218                                        pdir |= msk;
 219                                if (iopc->podr)
 220                                        podr |= msk;
 221                                if (iopc->pdat)
 222                                        pdat |= msk;
 223                                if (iopc->pint)
 224                                        pint |= msk;
 225                        }
 226                        msk <<= 1;
 227                        iopc++;
 228                }
 229
 230                PRINTF ("%s:%d:\n  portnum=%d ", __FUNCTION__, __LINE__,
 231                        portnum);
 232#ifdef IOPORT_DEBUG
 233                switch (portnum) {
 234                case 0:
 235                        printf ("(A)\n");
 236                        break;
 237                case 1:
 238                        printf ("(B)\n");
 239                        break;
 240                case 2:
 241                        printf ("(C)\n");
 242                        break;
 243                case 3:
 244                        printf ("(D)\n");
 245                        break;
 246                default:
 247                        printf ("(?)\n");
 248                        break;
 249                }
 250#endif
 251                PRINTF ("  ppar=0x%.8x  pdir=0x%.8x  podr=0x%.8x\n"
 252                        "  pdat=0x%.8x  psor=0x%.8x  pint=0x%.8x  pmsk=0x%.8x\n",
 253                        ppar, pdir, podr, pdat, psor, pint, pmsk);
 254
 255                /*
 256                 * Have to handle the ioports on a port-by-port basis since there
 257                 * are three different flavors.
 258                 */
 259                if (pmsk != 0) {
 260                        uint tpmsk = ~pmsk;
 261
 262                        if (0 == portnum) {     /* port A */
 263                                immr->im_ioport.iop_papar &= tpmsk;
 264                                immr->im_ioport.iop_padat =
 265                                        (immr->im_ioport.
 266                                         iop_padat & tpmsk) | pdat;
 267                                immr->im_ioport.iop_padir =
 268                                        (immr->im_ioport.
 269                                         iop_padir & tpmsk) | pdir;
 270                                immr->im_ioport.iop_paodr =
 271                                        (immr->im_ioport.
 272                                         iop_paodr & tpmsk) | podr;
 273                                immr->im_ioport.iop_papar |= ppar;
 274                        } else if (1 == portnum) {      /* port B */
 275                                immr->im_cpm.cp_pbpar &= tpmsk;
 276                                immr->im_cpm.cp_pbdat =
 277                                        (immr->im_cpm.
 278                                         cp_pbdat & tpmsk) | pdat;
 279                                immr->im_cpm.cp_pbdir =
 280                                        (immr->im_cpm.
 281                                         cp_pbdir & tpmsk) | pdir;
 282                                immr->im_cpm.cp_pbodr =
 283                                        (immr->im_cpm.
 284                                         cp_pbodr & tpmsk) | podr;
 285                                immr->im_cpm.cp_pbpar |= ppar;
 286                        } else if (2 == portnum) {      /* port C */
 287                                immr->im_ioport.iop_pcpar &= tpmsk;
 288                                immr->im_ioport.iop_pcdat =
 289                                        (immr->im_ioport.
 290                                         iop_pcdat & tpmsk) | pdat;
 291                                immr->im_ioport.iop_pcdir =
 292                                        (immr->im_ioport.
 293                                         iop_pcdir & tpmsk) | pdir;
 294                                immr->im_ioport.iop_pcint =
 295                                        (immr->im_ioport.
 296                                         iop_pcint & tpmsk) | pint;
 297                                immr->im_ioport.iop_pcso =
 298                                        (immr->im_ioport.
 299                                         iop_pcso & tpmsk) | psor;
 300                                immr->im_ioport.iop_pcpar |= ppar;
 301                        } else if (3 == portnum) {      /* port D */
 302                                immr->im_ioport.iop_pdpar &= tpmsk;
 303                                immr->im_ioport.iop_pddat =
 304                                        (immr->im_ioport.
 305                                         iop_pddat & tpmsk) | pdat;
 306                                immr->im_ioport.iop_pddir =
 307                                        (immr->im_ioport.
 308                                         iop_pddir & tpmsk) | pdir;
 309                                immr->im_ioport.iop_pdpar |= ppar;
 310                        }
 311                }
 312        }
 313
 314        PRINTF ("%s:%d: Port A:\n  papar=0x%.4x  padir=0x%.4x"
 315                "  paodr=0x%.4x\n  padat=0x%.4x\n", __FUNCTION__, __LINE__,
 316                immr->im_ioport.iop_papar, immr->im_ioport.iop_padir,
 317                immr->im_ioport.iop_paodr, immr->im_ioport.iop_padat);
 318        PRINTF ("%s:%d: Port B:\n  pbpar=0x%.8x  pbdir=0x%.8x"
 319                "  pbodr=0x%.8x\n  pbdat=0x%.8x\n", __FUNCTION__, __LINE__,
 320                immr->im_cpm.cp_pbpar, immr->im_cpm.cp_pbdir,
 321                immr->im_cpm.cp_pbodr, immr->im_cpm.cp_pbdat);
 322        PRINTF ("%s:%d: Port C:\n  pcpar=0x%.4x  pcdir=0x%.4x"
 323                "  pcdat=0x%.4x\n  pcso=0x%.4x  pcint=0x%.4x\n  ",
 324                __FUNCTION__, __LINE__, immr->im_ioport.iop_pcpar,
 325                immr->im_ioport.iop_pcdir, immr->im_ioport.iop_pcdat,
 326                immr->im_ioport.iop_pcso, immr->im_ioport.iop_pcint);
 327        PRINTF ("%s:%d: Port D:\n  pdpar=0x%.4x  pddir=0x%.4x"
 328                "  pddat=0x%.4x\n", __FUNCTION__, __LINE__,
 329                immr->im_ioport.iop_pdpar, immr->im_ioport.iop_pddir,
 330                immr->im_ioport.iop_pddat);
 331}
 332