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_is_partial_data(int devnum, size_t img_len)
  28 {
  29         const fpga_desc * const desc = fpga_get_desc(devnum);
  30         xilinx_desc *desc_xilinx = desc->devdesc;
  31
  32         /* Check datasize against FPGA size */
  33         if (img_len >= desc_xilinx->size)
  34                 return 0;
  35
  36         /* datasize is smaller, must be partial data */
  37         return 1;
  38 }
  39
  40 int fpga_loadbitstream(int devnum, char *fpgadata, size_t size,
  41                        bitstream_type bstype)
  42 {
  43         unsigned int length;
  44         unsigned int swapsize;
  45         unsigned char *dataptr;
  46         unsigned int i;
  47         const fpga_desc *desc;
  48         xilinx_desc *xdesc;
  49
  50         dataptr = (unsigned char *)fpgadata;
  51         /* Find out fpga_description */
  52         desc = fpga_validate(devnum, dataptr, 0, (char *)__func__);
  53         /* Assign xilinx device description */
  54         xdesc = desc->devdesc;
  55
  56         /* skip the first bytes of the bitsteam, their meaning is unknown */
  57         length = (*dataptr << 8) + *(dataptr + 1);
  58         dataptr += 2;
  59         dataptr += length;
  60
  61         /* get design name (identifier, length, string) */
  62         length = (*dataptr << 8) + *(dataptr + 1);
  63         dataptr += 2;
  64         if (*dataptr++ != 0x61) {
  65                 debug("%s: Design name id not recognized in bitstream\n",
  66                       __func__);
  67                 return FPGA_FAIL;
  68         }
  69
  70         length = (*dataptr << 8) + *(dataptr + 1);
  71         dataptr += 2;
  72         printf("  design filename = \"%s\"\n", dataptr);
  73         dataptr += length;
  74
  75         /* get part number (identifier, length, string) */
  76         if (*dataptr++ != 0x62) {
  77                 printf("%s: Part number id not recognized in bitstream\n",
  78                        __func__);
  79                 return FPGA_FAIL;
  80         }
  81
  82         length = (*dataptr << 8) + *(dataptr + 1);
  83         dataptr += 2;
  84
  85         if (xdesc->name) {
  86                 i = (ulong)strstr((char *)dataptr, xdesc->name);
  87                 if (!i) {
  88                         printf("%s: Wrong bitstream ID for this device\n",
  89                                __func__);
  90                         printf("%s: Bitstream ID %s, current device ID %d/%s\n",
  91                                __func__, dataptr, devnum, xdesc->name);
  92                         return FPGA_FAIL;
  93                 }
  94         } else {
  95                 printf("%s: Please fill correct device ID to xilinx_desc\n",
  96                        __func__);
  97         }
  98         printf("  part number = \"%s\"\n", dataptr);
  99         dataptr += length;
 100
 101         /* get date (identifier, length, string) */
 102         if (*dataptr++ != 0x63) {
 103                 printf("%s: Date identifier not recognized in bitstream\n",
 104                        __func__);
 105                 return FPGA_FAIL;
 106         }
 107
 108         length = (*dataptr << 8) + *(dataptr+1);
 109         dataptr += 2;
 110         printf("  date = \"%s\"\n", dataptr);
 111         dataptr += length;
 112
 113         /* get time (identifier, length, string) */
 114         if (*dataptr++ != 0x64) {
 115                 printf("%s: Time identifier not recognized in bitstream\n",
 116                        __func__);
 117                 return FPGA_FAIL;
 118         }
 119
 120         length = (*dataptr << 8) + *(dataptr+1);
 121         dataptr += 2;
 122         printf("  time = \"%s\"\n", dataptr);
 123         dataptr += length;
 124
 125         /* get fpga data length (identifier, length) */
 126         if (*dataptr++ != 0x65) {
 127                 printf("%s: Data length id not recognized in bitstream\n",
 128                        __func__);
 129                 return FPGA_FAIL;
 130         }
 131         swapsize = ((unsigned int) *dataptr << 24) +
 132                    ((unsigned int) *(dataptr + 1) << 16) +
 133                    ((unsigned int) *(dataptr + 2) << 8) +
 134                    ((unsigned int) *(dataptr + 3));
 135         dataptr += 4;
 136         printf("  bytes in bitstream = %d\n", swapsize);
 137
 138         return fpga_load(devnum, dataptr, swapsize, bstype);
 139 }
 140
 141 int xilinx_load(xilinx_desc *desc, const void *buf, size_t bsize,
 142                 bitstream_type bstype)
 143 {
 144         if (!xilinx_validate (desc, (char *)__FUNCTION__)) {
 145                 printf ("%s: Invalid device descriptor\n", __FUNCTION__);
 146                 return FPGA_FAIL;
 147         }
 148
 149         if (!desc->operations || !desc->operations->load) {
 150                 printf("%s: Missing load operation\n", __func__);
 151                 return FPGA_FAIL;
 152         }
 153
 154         return desc->operations->load(desc, buf, bsize, bstype);
 155 }
 156
 157 #if defined(CONFIG_CMD_FPGA_LOADFS)
 158 int xilinx_loadfs(xilinx_desc *desc, const void *buf, size_t bsize,
 159                    fpga_fs_info *fpga_fsinfo)
 160 {
 161         if (!xilinx_validate(desc, (char *)__func__)) {
 162                 printf("%s: Invalid device descriptor\n", __func__);
 163                 return FPGA_FAIL;
 164         }
 165
 166         if (!desc->operations || !desc->operations->loadfs) {
 167                 printf("%s: Missing loadfs operation\n", __func__);
 168                 return FPGA_FAIL;
 169         }
 170
 171         return desc->operations->loadfs(desc, buf, bsize, fpga_fsinfo);
 172 }
 173 #endif
 174
 175 int xilinx_dump(xilinx_desc *desc, const void *buf, size_t bsize)
 176 {
 177         if (!xilinx_validate (desc, (char *)__FUNCTION__)) {
 178                 printf ("%s: Invalid device descriptor\n", __FUNCTION__);
 179                 return FPGA_FAIL;
 180         }
 181
 182         if (!desc->operations || !desc->operations->dump) {
 183                 printf("%s: Missing dump operation\n", __func__);
 184                 return FPGA_FAIL;
 185         }
 186
 187         return desc->operations->dump(desc, buf, bsize);
 188 }
 189
 190 int xilinx_info(xilinx_desc *desc)
 191 {
 192         int ret_val = FPGA_FAIL;
 193
 194         if (xilinx_validate (desc, (char *)__FUNCTION__)) {
 195                 printf ("Family:        \t");
 196                 switch (desc->family) {
 197                 case xilinx_spartan2:
 198                         printf ("Spartan-II\n");
 199                         break;
 200                 case xilinx_spartan3:
 201                         printf ("Spartan-III\n");
 202                         break;
 203                 case xilinx_virtex2:
 204                         printf ("Virtex-II\n");
 205                         break;
 206                 case xilinx_zynq:
 207                         printf("Zynq PL\n");
 208                         break;
 209                 case xilinx_zynqmp:
 210                         printf("ZynqMP PL\n");
 211                         break;
 212                         /* Add new family types here */
 213                 default:
 214                         printf ("Unknown family type, %d\n", desc->family);
 215                 }
 216
 217                 printf ("Interface type:\t");
 218                 switch (desc->iface) {
 219                 case slave_serial:
 220                         printf ("Slave Serial\n");
 221                         break;
 222                 case master_serial:     /* Not used */
 223                         printf ("Master Serial\n");
 224                         break;
 225                 case slave_parallel:
 226                         printf ("Slave Parallel\n");
 227                         break;
 228                 case jtag_mode:         /* Not used */
 229                         printf ("JTAG Mode\n");
 230                         break;
 231                 case slave_selectmap:
 232                         printf ("Slave SelectMap Mode\n");
 233                         break;
 234                 case master_selectmap:
 235                         printf ("Master SelectMap Mode\n");
 236                         break;
 237                 case devcfg:
 238                         printf("Device configuration interface (Zynq)\n");
 239                         break;
 240                 case csu_dma:
 241                         printf("csu_dma configuration interface (ZynqMP)\n");
 242                         break;
 243                         /* Add new interface types here */
 244                 default:
 245                         printf ("Unsupported interface type, %d\n", desc->iface);
 246                 }
 247
 248                 printf("Device Size:   \t%zd bytes\n"
 249                        "Cookie:        \t0x%x (%d)\n",
 250                        desc->size, desc->cookie, desc->cookie);
 251                 if (desc->name)
 252                         printf("Device name:   \t%s\n", desc->name);
 253
 254                 if (desc->iface_fns)
 255                         printf ("Device Function Table @ 0x%p\n", desc->iface_fns);
 256                 else
 257                         printf ("No Device Function Table.\n");
 258
 259                 if (desc->operations && desc->operations->info)
 260                         desc->operations->info(desc);
 261
 262                 ret_val = FPGA_SUCCESS;
 263         } else {
 264                 printf ("%s: Invalid device descriptor\n", __FUNCTION__);
 265         }
 266
 267         return ret_val;
 268 }
 269
 270 /* ------------------------------------------------------------------------- */
 271
 272 static int xilinx_validate(xilinx_desc *desc, char *fn)
 273 {
 274         int ret_val = false;
 275
 276         if (desc) {
 277                 if ((desc->family > min_xilinx_type) &&
 278                         (desc->family < max_xilinx_type)) {
 279                         if ((desc->iface > min_xilinx_iface_type) &&
 280                                 (desc->iface < max_xilinx_iface_type)) {
 281                                 if (desc->size) {
 282                                         ret_val = true;
 283                                 } else
 284                                         printf ("%s: NULL part size\n", fn);
 285                         } else
 286                                 printf ("%s: Invalid Interface type, %d\n",
 287                                                 fn, desc->iface);
 288                 } else
 289                         printf ("%s: Invalid family type, %d\n", fn, desc->family);
 290         } else
 291                 printf ("%s: NULL descriptor!\n", fn);
 292
 293         return ret_val;
 294 }