1 /* 2 * (C) Copyright 2002 3 * Rich Ireland, Enterasys Networks, rireland@enterasys.com. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 /* Generic FPGA support */ 9 #include <common.h> /* core U-Boot definitions */ 10 #include <xilinx.h> /* xilinx specific definitions */ 11 #include <altera.h> /* altera specific definitions */ 12 #include <lattice.h> 13 14 /* Local definitions */ 15 #ifndef CONFIG_MAX_FPGA_DEVICES 16 #define CONFIG_MAX_FPGA_DEVICES 5 17 #endif 18 19 /* Local static data */ 20 static int next_desc = FPGA_INVALID_DEVICE; 21 static fpga_desc desc_table[CONFIG_MAX_FPGA_DEVICES]; 22 23 /* 24 * fpga_no_sup 25 * 'no support' message function 26 */ 27 static void fpga_no_sup(char *fn, char *msg) 28 { 29 if (fn && msg) 30 printf("%s: No support for %s.\n", fn, msg); 31 else if (msg) 32 printf("No support for %s.\n", msg); 33 else 34 printf("No FPGA support!\n"); 35 } 36 37 38 /* fpga_get_desc 39 * map a device number to a descriptor 40 */ 41 const fpga_desc *const fpga_get_desc(int devnum) 42 { 43 fpga_desc *desc = (fpga_desc *)NULL; 44 45 if ((devnum >= 0) && (devnum < next_desc)) { 46 desc = &desc_table[devnum]; 47 debug("%s: found fpga descriptor #%d @ 0x%p\n", 48 __func__, devnum, desc); 49 } 50 51 return desc; 52 } 53 54 /* 55 * fpga_validate 56 * generic parameter checking code 57 */ 58 const fpga_desc *const fpga_validate(int devnum, const void *buf, 59 size_t bsize, char *fn) 60 { 61 const fpga_desc *desc = fpga_get_desc(devnum); 62 63 if (!desc) 64 printf("%s: Invalid device number %d\n", fn, devnum); 65 66 if (!buf) { 67 printf("%s: Null buffer.\n", fn); 68 return (fpga_desc * const)NULL; 69 } 70 return desc; 71 } 72 73 /* 74 * fpga_dev_info 75 * generic multiplexing code 76 */ 77 static int fpga_dev_info(int devnum) 78 { 79 int ret_val = FPGA_FAIL; /* assume failure */ 80 const fpga_desc * const desc = fpga_get_desc(devnum); 81 82 if (desc) { 83 debug("%s: Device Descriptor @ 0x%p\n", 84 __func__, desc->devdesc); 85 86 switch (desc->devtype) { 87 case fpga_xilinx: 88 #if defined(CONFIG_FPGA_XILINX) 89 printf("Xilinx Device\nDescriptor @ 0x%p\n", desc); 90 ret_val = xilinx_info(desc->devdesc); 91 #else 92 fpga_no_sup((char *)__func__, "Xilinx devices"); 93 #endif 94 break; 95 case fpga_altera: 96 #if defined(CONFIG_FPGA_ALTERA) 97 printf("Altera Device\nDescriptor @ 0x%p\n", desc); 98 ret_val = altera_info(desc->devdesc); 99 #else 100 fpga_no_sup((char *)__func__, "Altera devices"); 101 #endif 102 break; 103 case fpga_lattice: 104 #if defined(CONFIG_FPGA_LATTICE) 105 printf("Lattice Device\nDescriptor @ 0x%p\n", desc); 106 ret_val = lattice_info(desc->devdesc); 107 #else 108 fpga_no_sup((char *)__func__, "Lattice devices"); 109 #endif 110 break; 111 default: 112 printf("%s: Invalid or unsupported device type %d\n", 113 __func__, desc->devtype); 114 } 115 } else { 116 printf("%s: Invalid device number %d\n", __func__, devnum); 117 } 118 119 return ret_val; 120 } 121 122 /* 123 * fpga_init is usually called from misc_init_r() and MUST be called 124 * before any of the other fpga functions are used. 125 */ 126 void fpga_init(void) 127 { 128 next_desc = 0; 129 memset(desc_table, 0, sizeof(desc_table)); 130 131 debug("%s\n", __func__); 132 } 133 134 /* 135 * fpga_count 136 * Basic interface function to get the current number of devices available. 137 */ 138 int fpga_count(void) 139 { 140 return next_desc; 141 } 142 143 /* 144 * fpga_add 145 * Add the device descriptor to the device table. 146 */ 147 int fpga_add(fpga_type devtype, void *desc) 148 { 149 int devnum = FPGA_INVALID_DEVICE; 150 151 if (next_desc < 0) { 152 printf("%s: FPGA support not initialized!\n", __func__); 153 } else if ((devtype > fpga_min_type) && (devtype < fpga_undefined)) { 154 if (desc) { 155 if (next_desc < CONFIG_MAX_FPGA_DEVICES) { 156 devnum = next_desc; 157 desc_table[next_desc].devtype = devtype; 158 desc_table[next_desc++].devdesc = desc; 159 } else { 160 printf("%s: Exceeded Max FPGA device count\n", 161 __func__); 162 } 163 } else { 164 printf("%s: NULL device descriptor\n", __func__); 165 } 166 } else { 167 printf("%s: Unsupported FPGA type %d\n", __func__, devtype); 168 } 169 170 return devnum; 171 } 172 173 /* 174 * Return 1 if the fpga data is partial. 175 * This is only required for fpga drivers that support bitstream_type. 176 */ 177 int __weak fpga_is_partial_data(int devnum, size_t img_len) 178 { 179 return 0; 180 } 181 182 /* 183 * Convert bitstream data and load into the fpga 184 */ 185 int __weak fpga_loadbitstream(int devnum, char *fpgadata, size_t size, 186 bitstream_type bstype) 187 { 188 printf("Bitstream support not implemented for this FPGA device\n"); 189 return FPGA_FAIL; 190 } 191 192 #if defined(CONFIG_CMD_FPGA_LOADFS) 193 int fpga_fsload(int devnum, const void *buf, size_t size, 194 fpga_fs_info *fpga_fsinfo) 195 { 196 int ret_val = FPGA_FAIL; /* assume failure */ 197 const fpga_desc *desc = fpga_validate(devnum, buf, size, 198 (char *)__func__); 199 200 if (desc) { 201 switch (desc->devtype) { 202 case fpga_xilinx: 203 #if defined(CONFIG_FPGA_XILINX) 204 ret_val = xilinx_loadfs(desc->devdesc, buf, size, 205 fpga_fsinfo); 206 #else 207 fpga_no_sup((char *)__func__, "Xilinx devices"); 208 #endif 209 break; 210 default: 211 printf("%s: Invalid or unsupported device type %d\n", 212 __func__, desc->devtype); 213 } 214 } 215 216 return ret_val; 217 } 218 #endif 219 220 /* 221 * Generic multiplexing code 222 */ 223 int fpga_load(int devnum, const void *buf, size_t bsize, bitstream_type bstype) 224 { 225 int ret_val = FPGA_FAIL; /* assume failure */ 226 const fpga_desc *desc = fpga_validate(devnum, buf, bsize, 227 (char *)__func__); 228 229 if (desc) { 230 switch (desc->devtype) { 231 case fpga_xilinx: 232 #if defined(CONFIG_FPGA_XILINX) 233 ret_val = xilinx_load(desc->devdesc, buf, bsize, 234 bstype); 235 #else 236 fpga_no_sup((char *)__func__, "Xilinx devices"); 237 #endif 238 break; 239 case fpga_altera: 240 #if defined(CONFIG_FPGA_ALTERA) 241 ret_val = altera_load(desc->devdesc, buf, bsize); 242 #else 243 fpga_no_sup((char *)__func__, "Altera devices"); 244 #endif 245 break; 246 case fpga_lattice: 247 #if defined(CONFIG_FPGA_LATTICE) 248 ret_val = lattice_load(desc->devdesc, buf, bsize); 249 #else 250 fpga_no_sup((char *)__func__, "Lattice devices"); 251 #endif 252 break; 253 default: 254 printf("%s: Invalid or unsupported device type %d\n", 255 __func__, desc->devtype); 256 } 257 } 258 259 return ret_val; 260 } 261 262 /* 263 * fpga_dump 264 * generic multiplexing code 265 */ 266 int fpga_dump(int devnum, const void *buf, size_t bsize) 267 { 268 int ret_val = FPGA_FAIL; /* assume failure */ 269 const fpga_desc *desc = fpga_validate(devnum, buf, bsize, 270 (char *)__func__); 271 272 if (desc) { 273 switch (desc->devtype) { 274 case fpga_xilinx: 275 #if defined(CONFIG_FPGA_XILINX) 276 ret_val = xilinx_dump(desc->devdesc, buf, bsize); 277 #else 278 fpga_no_sup((char *)__func__, "Xilinx devices"); 279 #endif 280 break; 281 case fpga_altera: 282 #if defined(CONFIG_FPGA_ALTERA) 283 ret_val = altera_dump(desc->devdesc, buf, bsize); 284 #else 285 fpga_no_sup((char *)__func__, "Altera devices"); 286 #endif 287 break; 288 case fpga_lattice: 289 #if defined(CONFIG_FPGA_LATTICE) 290 ret_val = lattice_dump(desc->devdesc, buf, bsize); 291 #else 292 fpga_no_sup((char *)__func__, "Lattice devices"); 293 #endif 294 break; 295 default: 296 printf("%s: Invalid or unsupported device type %d\n", 297 __func__, desc->devtype); 298 } 299 } 300 301 return ret_val; 302 } 303 304 /* 305 * fpga_info 306 * front end to fpga_dev_info. If devnum is invalid, report on all 307 * available devices. 308 */ 309 int fpga_info(int devnum) 310 { 311 if (devnum == FPGA_INVALID_DEVICE) { 312 if (next_desc > 0) { 313 int dev; 314 315 for (dev = 0; dev < next_desc; dev++) 316 fpga_dev_info(dev); 317 318 return FPGA_SUCCESS; 319 } else { 320 printf("%s: No FPGA devices available.\n", __func__); 321 return FPGA_FAIL; 322 } 323 } 324 325 return fpga_dev_info(devnum); 326 } 327