drivers/fpga/xilinx.c

   1 /*
   2  * (C) Copyright 2012-2013, Xilinx, Michal Simek
   3  *
   4  * (C) Copyright 2002
   5  * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
   6  * Keith Outwater, keith_outwater@mvis.com
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10
  11 /*
  12  *  Xilinx FPGA support
  13  */
  14
  15 #include <common.h>
  16 #include <fpga.h>
  17 #include <virtex2.h>
  18 #include <spartan2.h>
  19 #include <spartan3.h>
  20 #include <zynqpl.h>
  21
  22 /* Local Static Functions */
  23 static int xilinx_validate(xilinx_desc *desc, char *fn);
  24
  25 /* ------------------------------------------------------------------------- */
  26
  27 int fpga_loadbitstream(int devnum, char *fpgadata, size_t size,
  28                        bitstream_type bstype)
  29 {
  30         unsigned int length;
  31         unsigned int swapsize;
  32         unsigned char *dataptr;
  33         unsigned int i;
  34         const fpga_desc *desc;
  35         xilinx_desc *xdesc;
  36
  37         dataptr = (unsigned char *)fpgadata;
  38         /* Find out fpga_description */
  39         desc = fpga_validate(devnum, dataptr, 0, (char *)__func__);
  40         /* Assign xilinx device description */
  41         xdesc = desc->devdesc;
  42
  43         /* skip the first bytes of the bitsteam, their meaning is unknown */
  44         length = (*dataptr << 8) + *(dataptr + 1);
  45         dataptr += 2;
  46         dataptr += length;
  47
  48         /* get design name (identifier, length, string) */
  49         length = (*dataptr << 8) + *(dataptr + 1);
  50         dataptr += 2;
  51         if (*dataptr++ != 0x61) {
  52                 debug("%s: Design name id not recognized in bitstream\n",
  53                       __func__);
  54                 return FPGA_FAIL;
  55         }
  56
  57         length = (*dataptr << 8) + *(dataptr + 1);
  58         dataptr += 2;
  59         printf("  design filename = \"%s\"\n", dataptr);
  60         dataptr += length;
  61
  62         /* get part number (identifier, length, string) */
  63         if (*dataptr++ != 0x62) {
  64                 printf("%s: Part number id not recognized in bitstream\n",
  65                        __func__);
  66                 return FPGA_FAIL;
  67         }
  68
  69         length = (*dataptr << 8) + *(dataptr + 1);
  70         dataptr += 2;
  71
  72         if (xdesc->name) {
  73                 i = (ulong)strstr((char *)dataptr, xdesc->name);
  74                 if (!i) {
  75                         printf("%s: Wrong bitstream ID for this device\n",
  76                                __func__);
  77                         printf("%s: Bitstream ID %s, current device ID %d/%s\n",
  78                                __func__, dataptr, devnum, xdesc->name);
  79                         return FPGA_FAIL;
  80                 }
  81         } else {
  82                 printf("%s: Please fill correct device ID to xilinx_desc\n",
  83                        __func__);
  84         }
  85         printf("  part number = \"%s\"\n", dataptr);
  86         dataptr += length;
  87
  88         /* get date (identifier, length, string) */
  89         if (*dataptr++ != 0x63) {
  90                 printf("%s: Date identifier not recognized in bitstream\n",
  91                        __func__);
  92                 return FPGA_FAIL;
  93         }
  94
  95         length = (*dataptr << 8) + *(dataptr+1);
  96         dataptr += 2;
  97         printf("  date = \"%s\"\n", dataptr);
  98         dataptr += length;
  99
 100         /* get time (identifier, length, string) */
 101         if (*dataptr++ != 0x64) {
 102                 printf("%s: Time identifier not recognized in bitstream\n",
 103                        __func__);
 104                 return FPGA_FAIL;
 105         }
 106
 107         length = (*dataptr << 8) + *(dataptr+1);
 108         dataptr += 2;
 109         printf("  time = \"%s\"\n", dataptr);
 110         dataptr += length;
 111
 112         /* get fpga data length (identifier, length) */
 113         if (*dataptr++ != 0x65) {
 114                 printf("%s: Data length id not recognized in bitstream\n",
 115                        __func__);
 116                 return FPGA_FAIL;
 117         }
 118         swapsize = ((unsigned int) *dataptr << 24) +
 119                    ((unsigned int) *(dataptr + 1) << 16) +
 120                    ((unsigned int) *(dataptr + 2) << 8) +
 121                    ((unsigned int) *(dataptr + 3));
 122         dataptr += 4;
 123         printf("  bytes in bitstream = %d\n", swapsize);
 124
 125         return fpga_load(devnum, dataptr, swapsize, bstype);
 126 }
 127
 128 int xilinx_load(xilinx_desc *desc, const void *buf, size_t bsize,
 129                 bitstream_type bstype)
 130 {
 131         if (!xilinx_validate (desc, (char *)__FUNCTION__)) {
 132                 printf ("%s: Invalid device descriptor\n", __FUNCTION__);
 133                 return FPGA_FAIL;
 134         }
 135
 136         if (!desc->operations || !desc->operations->load) {
 137                 printf("%s: Missing load operation\n", __func__);
 138                 return FPGA_FAIL;
 139         }
 140
 141         return desc->operations->load(desc, buf, bsize, bstype);
 142 }
 143
 144 #if defined(CONFIG_CMD_FPGA_LOADFS)
 145 int xilinx_loadfs(xilinx_desc *desc, const void *buf, size_t bsize,
 146                    fpga_fs_info *fpga_fsinfo)
 147 {
 148         if (!xilinx_validate(desc, (char *)__func__)) {
 149                 printf("%s: Invalid device descriptor\n", __func__);
 150                 return FPGA_FAIL;
 151         }
 152
 153         if (!desc->operations || !desc->operations->loadfs) {
 154                 printf("%s: Missing loadfs operation\n", __func__);
 155                 return FPGA_FAIL;
 156         }
 157
 158         return desc->operations->loadfs(desc, buf, bsize, fpga_fsinfo);
 159 }
 160 #endif
 161
 162 int xilinx_dump(xilinx_desc *desc, const void *buf, size_t bsize)
 163 {
 164         if (!xilinx_validate (desc, (char *)__FUNCTION__)) {
 165                 printf ("%s: Invalid device descriptor\n", __FUNCTION__);
 166                 return FPGA_FAIL;
 167         }
 168
 169         if (!desc->operations || !desc->operations->dump) {
 170                 printf("%s: Missing dump operation\n", __func__);
 171                 return FPGA_FAIL;
 172         }
 173
 174         return desc->operations->dump(desc, buf, bsize);
 175 }
 176
 177 int xilinx_info(xilinx_desc *desc)
 178 {
 179         int ret_val = FPGA_FAIL;
 180
 181         if (xilinx_validate (desc, (char *)__FUNCTION__)) {
 182                 printf ("Family:        \t");
 183                 switch (desc->family) {
 184                 case xilinx_spartan2:
 185                         printf ("Spartan-II\n");
 186                         break;
 187                 case xilinx_spartan3:
 188                         printf ("Spartan-III\n");
 189                         break;
 190                 case xilinx_virtex2:
 191                         printf ("Virtex-II\n");
 192                         break;
 193                 case xilinx_zynq:
 194                         printf("Zynq PL\n");
 195                         break;
 196                 case xilinx_zynqmp:
 197                         printf("ZynqMP PL\n");
 198                         break;
 199                         /* Add new family types here */
 200                 default:
 201                         printf ("Unknown family type, %d\n", desc->family);
 202                 }
 203
 204                 printf ("Interface type:\t");
 205                 switch (desc->iface) {
 206                 case slave_serial:
 207                         printf ("Slave Serial\n");
 208                         break;
 209                 case master_serial:     /* Not used */
 210                         printf ("Master Serial\n");
 211                         break;
 212                 case slave_parallel:
 213                         printf ("Slave Parallel\n");
 214                         break;
 215                 case jtag_mode:         /* Not used */
 216                         printf ("JTAG Mode\n");
 217                         break;
 218                 case slave_selectmap:
 219                         printf ("Slave SelectMap Mode\n");
 220                         break;
 221                 case master_selectmap:
 222                         printf ("Master SelectMap Mode\n");
 223                         break;
 224                 case devcfg:
 225                         printf("Device configuration interface (Zynq)\n");
 226                         break;
 227                 case csu_dma:
 228                         printf("csu_dma configuration interface (ZynqMP)\n");
 229                         break;
 230                         /* Add new interface types here */
 231                 default:
 232                         printf ("Unsupported interface type, %d\n", desc->iface);
 233                 }
 234
 235                 printf("Device Size:   \t%zd bytes\n"
 236                        "Cookie:        \t0x%x (%d)\n",
 237                        desc->size, desc->cookie, desc->cookie);
 238                 if (desc->name)
 239                         printf("Device name:   \t%s\n", desc->name);
 240
 241                 if (desc->iface_fns)
 242                         printf ("Device Function Table @ 0x%p\n", desc->iface_fns);
 243                 else
 244                         printf ("No Device Function Table.\n");
 245
 246                 if (desc->operations && desc->operations->info)
 247                         desc->operations->info(desc);
 248
 249                 ret_val = FPGA_SUCCESS;
 250         } else {
 251                 printf ("%s: Invalid device descriptor\n", __FUNCTION__);
 252         }
 253
 254         return ret_val;
 255 }
 256
 257 /* ------------------------------------------------------------------------- */
 258
 259 static int xilinx_validate(xilinx_desc *desc, char *fn)
 260 {
 261         int ret_val = false;
 262
 263         if (desc) {
 264                 if ((desc->family > min_xilinx_type) &&
 265                         (desc->family < max_xilinx_type)) {
 266                         if ((desc->iface > min_xilinx_iface_type) &&
 267                                 (desc->iface < max_xilinx_iface_type)) {
 268                                 if (desc->size) {
 269                                         ret_val = true;
 270                                 } else
 271                                         printf ("%s: NULL part size\n", fn);
 272                         } else
 273                                 printf ("%s: Invalid Interface type, %d\n",
 274                                                 fn, desc->iface);
 275                 } else
 276                         printf ("%s: Invalid family type, %d\n", fn, desc->family);
 277         } else
 278                 printf ("%s: NULL descriptor!\n", fn);
 279
 280         return ret_val;
 281 }