xref: /openbmc/u-boot/cmd/fpga.c (revision fabbeb33) 
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2000, 2001
4  * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
5  */
6 
7 /*
8  *  FPGA support
9  */
10 #include <common.h>
11 #include <command.h>
12 #include <fpga.h>
13 #include <fs.h>
14 #include <malloc.h>
15 
16 static long do_fpga_get_device(char *arg)
17 {
18 	long dev = FPGA_INVALID_DEVICE;
19 	char *devstr = env_get("fpga");
20 
21 	if (devstr)
22 		/* Should be strtol to handle -1 cases */
23 		dev = simple_strtol(devstr, NULL, 16);
24 
25 	if (dev == FPGA_INVALID_DEVICE && arg)
26 		dev = simple_strtol(arg, NULL, 16);
27 
28 	debug("%s: device = %ld\n", __func__, dev);
29 
30 	return dev;
31 }
32 
33 static int do_fpga_check_params(long *dev, long *fpga_data, size_t *data_size,
34 				cmd_tbl_t *cmdtp, int argc, char *const argv[])
35 {
36 	size_t local_data_size;
37 	long local_fpga_data;
38 
39 	debug("%s %d, %d\n", __func__, argc, cmdtp->maxargs);
40 
41 	if (argc != cmdtp->maxargs) {
42 		debug("fpga: incorrect parameters passed\n");
43 		return CMD_RET_USAGE;
44 	}
45 
46 	*dev = do_fpga_get_device(argv[0]);
47 
48 	local_fpga_data = simple_strtol(argv[1], NULL, 16);
49 	if (!local_fpga_data) {
50 		debug("fpga: zero fpga_data address\n");
51 		return CMD_RET_USAGE;
52 	}
53 	*fpga_data = local_fpga_data;
54 
55 	local_data_size = simple_strtoul(argv[2], NULL, 16);
56 	if (!local_data_size) {
57 		debug("fpga: zero size\n");
58 		return CMD_RET_USAGE;
59 	}
60 	*data_size = local_data_size;
61 
62 	return 0;
63 }
64 
65 #if defined(CONFIG_CMD_FPGA_LOAD_SECURE)
66 int do_fpga_loads(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
67 {
68 	size_t data_size = 0;
69 	long fpga_data, dev;
70 	int ret;
71 	struct fpga_secure_info fpga_sec_info;
72 
73 	memset(&fpga_sec_info, 0, sizeof(fpga_sec_info));
74 
75 	if (argc < 5) {
76 		debug("fpga: incorrect parameters passed\n");
77 		return CMD_RET_USAGE;
78 	}
79 
80 	if (argc == 6)
81 		fpga_sec_info.userkey_addr = (u8 *)(uintptr_t)
82 					      simple_strtoull(argv[5],
83 							      NULL, 16);
84 	else
85 		/*
86 		 * If 6th parameter is not passed then do_fpga_check_params
87 		 * will get 5 instead of expected 6 which means that function
88 		 * return CMD_RET_USAGE. Increase number of params +1 to pass
89 		 * this.
90 		 */
91 		argc++;
92 
93 	fpga_sec_info.encflag = (u8)simple_strtoul(argv[4], NULL, 16);
94 	fpga_sec_info.authflag = (u8)simple_strtoul(argv[3], NULL, 16);
95 
96 	if (fpga_sec_info.authflag >= FPGA_NO_ENC_OR_NO_AUTH &&
97 	    fpga_sec_info.encflag >= FPGA_NO_ENC_OR_NO_AUTH) {
98 		debug("fpga: Use <fpga load> for NonSecure bitstream\n");
99 		return CMD_RET_USAGE;
100 	}
101 
102 	if (fpga_sec_info.encflag == FPGA_ENC_USR_KEY &&
103 	    !fpga_sec_info.userkey_addr) {
104 		debug("fpga: User key not provided\n");
105 		return CMD_RET_USAGE;
106 	}
107 
108 	ret = do_fpga_check_params(&dev, &fpga_data, &data_size,
109 				   cmdtp, argc, argv);
110 	if (ret)
111 		return ret;
112 
113 	return fpga_loads(dev, (void *)fpga_data, data_size, &fpga_sec_info);
114 }
115 #endif
116 
117 #if defined(CONFIG_CMD_FPGA_LOADFS)
118 static int do_fpga_loadfs(cmd_tbl_t *cmdtp, int flag, int argc,
119 			  char *const argv[])
120 {
121 	size_t data_size = 0;
122 	long fpga_data, dev;
123 	int ret;
124 	fpga_fs_info fpga_fsinfo;
125 
126 	ret = do_fpga_check_params(&dev, &fpga_data, &data_size,
127 				   cmdtp, argc, argv);
128 	if (ret)
129 		return ret;
130 
131 	fpga_fsinfo.fstype = FS_TYPE_ANY;
132 	fpga_fsinfo.blocksize = (unsigned int)simple_strtoul(argv[3], NULL, 16);
133 	fpga_fsinfo.interface = argv[4];
134 	fpga_fsinfo.dev_part = argv[5];
135 	fpga_fsinfo.filename = argv[6];
136 
137 	return fpga_fsload(dev, (void *)fpga_data, data_size, &fpga_fsinfo);
138 }
139 #endif
140 
141 static int do_fpga_info(cmd_tbl_t *cmdtp, int flag, int argc,
142 			char * const argv[])
143 {
144 	long dev = do_fpga_get_device(argv[0]);
145 
146 	return fpga_info(dev);
147 }
148 
149 static int do_fpga_dump(cmd_tbl_t *cmdtp, int flag, int argc,
150 			char * const argv[])
151 {
152 	size_t data_size = 0;
153 	long fpga_data, dev;
154 	int ret;
155 
156 	ret = do_fpga_check_params(&dev, &fpga_data, &data_size,
157 				   cmdtp, argc, argv);
158 	if (ret)
159 		return ret;
160 
161 	return fpga_dump(dev, (void *)fpga_data, data_size);
162 }
163 
164 static int do_fpga_load(cmd_tbl_t *cmdtp, int flag, int argc,
165 			char * const argv[])
166 {
167 	size_t data_size = 0;
168 	long fpga_data, dev;
169 	int ret;
170 
171 	ret = do_fpga_check_params(&dev, &fpga_data, &data_size,
172 				   cmdtp, argc, argv);
173 	if (ret)
174 		return ret;
175 
176 	return fpga_load(dev, (void *)fpga_data, data_size, BIT_FULL);
177 }
178 
179 static int do_fpga_loadb(cmd_tbl_t *cmdtp, int flag, int argc,
180 			 char * const argv[])
181 {
182 	size_t data_size = 0;
183 	long fpga_data, dev;
184 	int ret;
185 
186 	ret = do_fpga_check_params(&dev, &fpga_data, &data_size,
187 				   cmdtp, argc, argv);
188 	if (ret)
189 		return ret;
190 
191 	return fpga_loadbitstream(dev, (void *)fpga_data, data_size, BIT_FULL);
192 }
193 
194 #if defined(CONFIG_CMD_FPGA_LOADP)
195 static int do_fpga_loadp(cmd_tbl_t *cmdtp, int flag, int argc,
196 			 char * const argv[])
197 {
198 	size_t data_size = 0;
199 	long fpga_data, dev;
200 	int ret;
201 
202 	ret = do_fpga_check_params(&dev, &fpga_data, &data_size,
203 				   cmdtp, argc, argv);
204 	if (ret)
205 		return ret;
206 
207 	return fpga_load(dev, (void *)fpga_data, data_size, BIT_PARTIAL);
208 }
209 #endif
210 
211 #if defined(CONFIG_CMD_FPGA_LOADBP)
212 static int do_fpga_loadbp(cmd_tbl_t *cmdtp, int flag, int argc,
213 			  char * const argv[])
214 {
215 	size_t data_size = 0;
216 	long fpga_data, dev;
217 	int ret;
218 
219 	ret = do_fpga_check_params(&dev, &fpga_data, &data_size,
220 				   cmdtp, argc, argv);
221 	if (ret)
222 		return ret;
223 
224 	return fpga_loadbitstream(dev, (void *)fpga_data, data_size,
225 				  BIT_PARTIAL);
226 }
227 #endif
228 
229 #if defined(CONFIG_CMD_FPGA_LOADMK)
230 static int do_fpga_loadmk(cmd_tbl_t *cmdtp, int flag, int argc,
231 			  char * const argv[])
232 {
233 	size_t data_size = 0;
234 	void *fpga_data = NULL;
235 #if defined(CONFIG_FIT)
236 	const char *fit_uname = NULL;
237 	ulong fit_addr;
238 #endif
239 	ulong dev = do_fpga_get_device(argv[0]);
240 	char *datastr = env_get("fpgadata");
241 
242 	debug("fpga: argc %x, dev %lx, datastr %s\n", argc, dev, datastr);
243 
244 	if (dev == FPGA_INVALID_DEVICE) {
245 		debug("fpga: Invalid fpga device\n");
246 		return CMD_RET_USAGE;
247 	}
248 
249 	if (argc == 0 && !datastr) {
250 		debug("fpga: No datastr passed\n");
251 		return CMD_RET_USAGE;
252 	}
253 
254 	if (argc == 2) {
255 		datastr = argv[1];
256 		debug("fpga: Full command with two args\n");
257 	} else if (argc == 1 && !datastr) {
258 		debug("fpga: Dev is setup - fpgadata passed\n");
259 		datastr = argv[0];
260 	}
261 
262 #if defined(CONFIG_FIT)
263 	if (fit_parse_subimage(datastr, (ulong)fpga_data,
264 			       &fit_addr, &fit_uname)) {
265 		fpga_data = (void *)fit_addr;
266 		debug("*  fpga: subimage '%s' from FIT image ",
267 		      fit_uname);
268 		debug("at 0x%08lx\n", fit_addr);
269 	} else
270 #endif
271 	{
272 		fpga_data = (void *)simple_strtoul(datastr, NULL, 16);
273 		debug("*  fpga: cmdline image address = 0x%08lx\n",
274 		      (ulong)fpga_data);
275 	}
276 	debug("%s: fpga_data = 0x%lx\n", __func__, (ulong)fpga_data);
277 	if (!fpga_data) {
278 		puts("Zero fpga_data address\n");
279 		return CMD_RET_USAGE;
280 	}
281 
282 	switch (genimg_get_format(fpga_data)) {
283 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
284 	case IMAGE_FORMAT_LEGACY:
285 	{
286 		image_header_t *hdr = (image_header_t *)fpga_data;
287 		ulong data;
288 		u8 comp;
289 
290 		comp = image_get_comp(hdr);
291 		if (comp == IH_COMP_GZIP) {
292 #if defined(CONFIG_GZIP)
293 			ulong image_buf = image_get_data(hdr);
294 			ulong image_size = ~0UL;
295 
296 			data = image_get_load(hdr);
297 
298 			if (gunzip((void *)data, ~0UL, (void *)image_buf,
299 				   &image_size) != 0) {
300 				puts("GUNZIP: error\n");
301 				return CMD_RET_FAILURE;
302 			}
303 			data_size = image_size;
304 #else
305 			puts("Gunzip image is not supported\n");
306 			return 1;
307 #endif
308 		} else {
309 			data = (ulong)image_get_data(hdr);
310 			data_size = image_get_data_size(hdr);
311 		}
312 		return fpga_load(dev, (void *)data, data_size,
313 				  BIT_FULL);
314 	}
315 #endif
316 #if defined(CONFIG_FIT)
317 	case IMAGE_FORMAT_FIT:
318 	{
319 		const void *fit_hdr = (const void *)fpga_data;
320 		int noffset;
321 		const void *fit_data;
322 
323 		if (!fit_uname) {
324 			puts("No FIT subimage unit name\n");
325 			return CMD_RET_FAILURE;
326 		}
327 
328 		if (!fit_check_format(fit_hdr)) {
329 			puts("Bad FIT image format\n");
330 			return CMD_RET_FAILURE;
331 		}
332 
333 		/* get fpga component image node offset */
334 		noffset = fit_image_get_node(fit_hdr, fit_uname);
335 		if (noffset < 0) {
336 			printf("Can't find '%s' FIT subimage\n", fit_uname);
337 			return CMD_RET_FAILURE;
338 		}
339 
340 		/* verify integrity */
341 		if (!fit_image_verify(fit_hdr, noffset)) {
342 			puts("Bad Data Hash\n");
343 			return CMD_RET_FAILURE;
344 		}
345 
346 		/* get fpga subimage data address and length */
347 		if (fit_image_get_data(fit_hdr, noffset, &fit_data,
348 				       &data_size)) {
349 			puts("Fpga subimage data not found\n");
350 			return CMD_RET_FAILURE;
351 		}
352 
353 		return fpga_load(dev, fit_data, data_size, BIT_FULL);
354 	}
355 #endif
356 	default:
357 		puts("** Unknown image type\n");
358 		return CMD_RET_FAILURE;
359 	}
360 }
361 #endif
362 
363 static cmd_tbl_t fpga_commands[] = {
364 	U_BOOT_CMD_MKENT(info, 1, 1, do_fpga_info, "", ""),
365 	U_BOOT_CMD_MKENT(dump, 3, 1, do_fpga_dump, "", ""),
366 	U_BOOT_CMD_MKENT(load, 3, 1, do_fpga_load, "", ""),
367 	U_BOOT_CMD_MKENT(loadb, 3, 1, do_fpga_loadb, "", ""),
368 #if defined(CONFIG_CMD_FPGA_LOADP)
369 	U_BOOT_CMD_MKENT(loadp, 3, 1, do_fpga_loadp, "", ""),
370 #endif
371 #if defined(CONFIG_CMD_FPGA_LOADBP)
372 	U_BOOT_CMD_MKENT(loadbp, 3, 1, do_fpga_loadbp, "", ""),
373 #endif
374 #if defined(CONFIG_CMD_FPGA_LOADFS)
375 	U_BOOT_CMD_MKENT(loadfs, 7, 1, do_fpga_loadfs, "", ""),
376 #endif
377 #if defined(CONFIG_CMD_FPGA_LOADMK)
378 	U_BOOT_CMD_MKENT(loadmk, 2, 1, do_fpga_loadmk, "", ""),
379 #endif
380 #if defined(CONFIG_CMD_FPGA_LOAD_SECURE)
381 	U_BOOT_CMD_MKENT(loads, 6, 1, do_fpga_loads, "", ""),
382 #endif
383 };
384 
385 static int do_fpga_wrapper(cmd_tbl_t *cmdtp, int flag, int argc,
386 			   char *const argv[])
387 {
388 	cmd_tbl_t *fpga_cmd;
389 	int ret;
390 
391 	if (argc < 2)
392 		return CMD_RET_USAGE;
393 
394 	fpga_cmd = find_cmd_tbl(argv[1], fpga_commands,
395 				ARRAY_SIZE(fpga_commands));
396 	if (!fpga_cmd) {
397 		debug("fpga: non existing command\n");
398 		return CMD_RET_USAGE;
399 	}
400 
401 	argc -= 2;
402 	argv += 2;
403 
404 	if (argc > fpga_cmd->maxargs) {
405 		debug("fpga: more parameters passed\n");
406 		return CMD_RET_USAGE;
407 	}
408 
409 	ret = fpga_cmd->cmd(fpga_cmd, flag, argc, argv);
410 
411 	return cmd_process_error(fpga_cmd, ret);
412 }
413 
414 #if defined(CONFIG_CMD_FPGA_LOADFS) || defined(CONFIG_CMD_FPGA_LOAD_SECURE)
415 U_BOOT_CMD(fpga, 9, 1, do_fpga_wrapper,
416 #else
417 U_BOOT_CMD(fpga, 6, 1, do_fpga_wrapper,
418 #endif
419 	   "loadable FPGA image support",
420 	   "[operation type] [device number] [image address] [image size]\n"
421 	   "fpga operations:\n"
422 	   "  dump\t[dev] [address] [size]\tLoad device to memory buffer\n"
423 	   "  info\t[dev]\t\t\tlist known device information\n"
424 	   "  load\t[dev] [address] [size]\tLoad device from memory buffer\n"
425 #if defined(CONFIG_CMD_FPGA_LOADP)
426 	   "  loadp\t[dev] [address] [size]\t"
427 	   "Load device from memory buffer with partial bitstream\n"
428 #endif
429 	   "  loadb\t[dev] [address] [size]\t"
430 	   "Load device from bitstream buffer (Xilinx only)\n"
431 #if defined(CONFIG_CMD_FPGA_LOADBP)
432 	   "  loadbp\t[dev] [address] [size]\t"
433 	   "Load device from bitstream buffer with partial bitstream"
434 	   "(Xilinx only)\n"
435 #endif
436 #if defined(CONFIG_CMD_FPGA_LOADFS)
437 	   "Load device from filesystem (FAT by default) (Xilinx only)\n"
438 	   "  loadfs [dev] [address] [image size] [blocksize] <interface>\n"
439 	   "        [<dev[:part]>] <filename>\n"
440 #endif
441 #if defined(CONFIG_CMD_FPGA_LOADMK)
442 	   "  loadmk [dev] [address]\tLoad device generated with mkimage"
443 #if defined(CONFIG_FIT)
444 	   "\n"
445 	   "\tFor loadmk operating on FIT format uImage address must include\n"
446 	   "\tsubimage unit name in the form of addr:<subimg_uname>"
447 #endif
448 #endif
449 #if defined(CONFIG_CMD_FPGA_LOAD_SECURE)
450 	   "Load encrypted bitstream (Xilinx only)\n"
451 	   "  loads [dev] [address] [size] [auth-OCM-0/DDR-1/noauth-2]\n"
452 	   "        [enc-devkey(0)/userkey(1)/nenc(2) [Userkey address]\n"
453 	   "Loads the secure bistreams(authenticated/encrypted/both\n"
454 	   "authenticated and encrypted) of [size] from [address].\n"
455 	   "The auth-OCM/DDR flag specifies to perform authentication\n"
456 	   "in OCM or in DDR. 0 for OCM, 1 for DDR, 2 for no authentication.\n"
457 	   "The enc flag specifies which key to be used for decryption\n"
458 	   "0-device key, 1-user key, 2-no encryption.\n"
459 	   "The optional Userkey address specifies from which address key\n"
460 	   "has to be used for decryption if user key is selected.\n"
461 	   "NOTE: the sceure bitstream has to be created using xilinx\n"
462 	   "bootgen tool only.\n"
463 #endif
464 );
465