drivers/fpga/altera.c

   1 /*
   2  * (C) Copyright 2003
   3  * Steven Scholz, imc Measurement & Control, steven.scholz@imc-berlin.de
   4  *
   5  * (C) Copyright 2002
   6  * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10
  11 /*
  12  *  Altera FPGA support
  13  */
  14 #include <common.h>
  15 #include <errno.h>
  16 #include <ACEX1K.h>
  17 #include <stratixII.h>
  18
  19 /* Define FPGA_DEBUG to 1 to get debug printf's */
  20 #define FPGA_DEBUG      0
  21
  22 static const struct altera_fpga {
  23         enum altera_family      family;
  24         const char              *name;
  25         int                     (*load)(Altera_desc *, const void *, size_t);
  26         int                     (*dump)(Altera_desc *, const void *, size_t);
  27         int                     (*info)(Altera_desc *);
  28 } altera_fpga[] = {
  29 #if defined(CONFIG_FPGA_ACEX1K)
  30         { Altera_ACEX1K, "ACEX1K", ACEX1K_load, ACEX1K_dump, ACEX1K_info },
  31         { Altera_CYC2,   "ACEX1K", ACEX1K_load, ACEX1K_dump, ACEX1K_info },
  32 #elif defined(CONFIG_FPGA_CYCLON2)
  33         { Altera_ACEX1K, "CycloneII", CYC2_load, CYC2_dump, CYC2_info },
  34         { Altera_CYC2,   "CycloneII", CYC2_load, CYC2_dump, CYC2_info },
  35 #endif
  36 #if defined(CONFIG_FPGA_STRATIX_II)
  37         { Altera_StratixII, "StratixII", StratixII_load,
  38           StratixII_dump, StratixII_info },
  39 #endif
  40 #if defined(CONFIG_FPGA_STRATIX_V)
  41         { Altera_StratixV, "StratixV", stratixv_load, NULL, NULL },
  42 #endif
  43 #if defined(CONFIG_FPGA_SOCFPGA)
  44         { Altera_SoCFPGA, "SoC FPGA", socfpga_load, NULL, NULL },
  45 #endif
  46 };
  47
  48 static int altera_validate(Altera_desc *desc, const char *fn)
  49 {
  50         if (!desc) {
  51                 printf("%s: NULL descriptor!\n", fn);
  52                 return -EINVAL;
  53         }
  54
  55         if ((desc->family < min_altera_type) ||
  56             (desc->family > max_altera_type)) {
  57                 printf("%s: Invalid family type, %d\n", fn, desc->family);
  58                 return -EINVAL;
  59         }
  60
  61         if ((desc->iface < min_altera_iface_type) ||
  62             (desc->iface > max_altera_iface_type)) {
  63                 printf("%s: Invalid Interface type, %d\n", fn, desc->iface);
  64                 return -EINVAL;
  65         }
  66
  67         if (!desc->size) {
  68                 printf("%s: NULL part size\n", fn);
  69                 return -EINVAL;
  70         }
  71
  72         return 0;
  73 }
  74
  75 static const struct altera_fpga *
  76 altera_desc_to_fpga(Altera_desc *desc, const char *fn)
  77 {
  78         int i;
  79
  80         if (altera_validate(desc, fn)) {
  81                 printf("%s: Invalid device descriptor\n", fn);
  82                 return NULL;
  83         }
  84
  85         for (i = 0; i < ARRAY_SIZE(altera_fpga); i++) {
  86                 if (desc->family == altera_fpga[i].family)
  87                         break;
  88         }
  89
  90         if (i == ARRAY_SIZE(altera_fpga)) {
  91                 printf("%s: Unsupported family type, %d\n", fn, desc->family);
  92                 return NULL;
  93         }
  94
  95         return &altera_fpga[i];
  96 }
  97
  98 int altera_load(Altera_desc *desc, const void *buf, size_t bsize)
  99 {
 100         const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
 101
 102         if (!fpga)
 103                 return FPGA_FAIL;
 104
 105         debug_cond(FPGA_DEBUG, "%s: Launching the %s Loader...\n",
 106                    __func__, fpga->name);
 107         if (fpga->load)
 108                 return fpga->load(desc, buf, bsize);
 109         return 0;
 110 }
 111
 112 int altera_dump(Altera_desc *desc, const void *buf, size_t bsize)
 113 {
 114         const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
 115
 116         if (!fpga)
 117                 return FPGA_FAIL;
 118
 119         debug_cond(FPGA_DEBUG, "%s: Launching the %s Reader...\n",
 120                    __func__, fpga->name);
 121         if (fpga->dump)
 122                 return fpga->dump(desc, buf, bsize);
 123         return 0;
 124 }
 125
 126 int altera_info(Altera_desc *desc)
 127 {
 128         const struct altera_fpga *fpga = altera_desc_to_fpga(desc, __func__);
 129
 130         if (!fpga)
 131                 return FPGA_FAIL;
 132
 133         printf("Family:        \t%s\n", fpga->name);
 134
 135         printf("Interface type:\t");
 136         switch (desc->iface) {
 137         case passive_serial:
 138                 printf("Passive Serial (PS)\n");
 139                 break;
 140         case passive_parallel_synchronous:
 141                 printf("Passive Parallel Synchronous (PPS)\n");
 142                 break;
 143         case passive_parallel_asynchronous:
 144                 printf("Passive Parallel Asynchronous (PPA)\n");
 145                 break;
 146         case passive_serial_asynchronous:
 147                 printf("Passive Serial Asynchronous (PSA)\n");
 148                 break;
 149         case altera_jtag_mode:          /* Not used */
 150                 printf("JTAG Mode\n");
 151                 break;
 152         case fast_passive_parallel:
 153                 printf("Fast Passive Parallel (FPP)\n");
 154                 break;
 155         case fast_passive_parallel_security:
 156                 printf("Fast Passive Parallel with Security (FPPS)\n");
 157                 break;
 158                 /* Add new interface types here */
 159         default:
 160                 printf("Unsupported interface type, %d\n", desc->iface);
 161         }
 162
 163         printf("Device Size:   \t%zd bytes\n"
 164                "Cookie:        \t0x%x (%d)\n",
 165                desc->size, desc->cookie, desc->cookie);
 166
 167         if (desc->iface_fns) {
 168                 printf("Device Function Table @ 0x%p\n", desc->iface_fns);
 169                 if (fpga->info)
 170                         fpga->info(desc);
 171         } else {
 172                 printf("No Device Function Table.\n");
 173         }
 174
 175         return FPGA_SUCCESS;
 176 }