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Stefano Babic4962e382011-10-17 00:07:43 +00001/*
2 * (C) Copyright 2011
3 * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
4 *
Wolfgang Denk3765b3e2013-10-07 13:07:26 +02005 * SPDX-License-Identifier: GPL-2.0+
Stefano Babic4962e382011-10-17 00:07:43 +00006 */
7
Stefano Babic4962e382011-10-17 00:07:43 +00008#include "mkimage.h"
9#include "aisimage.h"
10#include <image.h>
11
12#define IS_FNC_EXEC(c) (cmd_table[c].AIS_cmd == AIS_CMD_FNLOAD)
13#define WORD_ALIGN0 4
14#define WORD_ALIGN(len) (((len)+WORD_ALIGN0-1) & ~(WORD_ALIGN0-1))
15#define MAX_CMD_BUFFER 4096
Stefano Babic4962e382011-10-17 00:07:43 +000016
17static uint32_t ais_img_size;
18
19/*
20 * Supported commands for configuration file
21 */
22static table_entry_t aisimage_cmds[] = {
23 {CMD_DATA, "DATA", "Reg Write Data"},
24 {CMD_FILL, "FILL", "Fill range with pattern"},
25 {CMD_CRCON, "CRCON", "CRC Enable"},
26 {CMD_CRCOFF, "CRCOFF", "CRC Disable"},
27 {CMD_CRCCHECK, "CRCCHECK", "CRC Validate"},
28 {CMD_JMPCLOSE, "JMPCLOSE", "Jump & Close"},
29 {CMD_JMP, "JMP", "Jump"},
30 {CMD_SEQREAD, "SEQREAD", "Sequential read"},
31 {CMD_PLL0, "PLL0", "PLL0"},
32 {CMD_PLL1, "PLL1", "PLL1"},
33 {CMD_CLK, "CLK", "Clock configuration"},
34 {CMD_DDR2, "DDR2", "DDR2 Configuration"},
35 {CMD_EMIFA, "EMIFA", "EMIFA"},
36 {CMD_EMIFA_ASYNC, "EMIFA_ASYNC", "EMIFA Async"},
37 {CMD_PLL, "PLL", "PLL & Clock configuration"},
38 {CMD_PSC, "PSC", "PSC setup"},
39 {CMD_PINMUX, "PINMUX", "Pinmux setup"},
40 {CMD_BOOTTABLE, "BOOT_TABLE", "Boot table command"},
41 {-1, "", ""},
42};
43
44static struct ais_func_exec {
45 uint32_t index;
46 uint32_t argcnt;
47} ais_func_table[] = {
48 [CMD_PLL0] = {0, 2},
49 [CMD_PLL1] = {1, 2},
50 [CMD_CLK] = {2, 1},
51 [CMD_DDR2] = {3, 8},
52 [CMD_EMIFA] = {4, 5},
53 [CMD_EMIFA_ASYNC] = {5, 5},
54 [CMD_PLL] = {6, 3},
55 [CMD_PSC] = {7, 1},
56 [CMD_PINMUX] = {8, 3}
57};
58
59static struct cmd_table_t {
60 uint32_t nargs;
61 uint32_t AIS_cmd;
62} cmd_table[] = {
63 [CMD_FILL] = { 4, AIS_CMD_FILL},
64 [CMD_CRCON] = { 0, AIS_CMD_ENCRC},
65 [CMD_CRCOFF] = { 0, AIS_CMD_DISCRC},
66 [CMD_CRCCHECK] = { 2, AIS_CMD_ENCRC},
67 [CMD_JMPCLOSE] = { 1, AIS_CMD_JMPCLOSE},
68 [CMD_JMP] = { 1, AIS_CMD_JMP},
69 [CMD_SEQREAD] = { 0, AIS_CMD_SEQREAD},
70 [CMD_PLL0] = { 2, AIS_CMD_FNLOAD},
71 [CMD_PLL1] = { 2, AIS_CMD_FNLOAD},
72 [CMD_CLK] = { 1, AIS_CMD_FNLOAD},
73 [CMD_DDR2] = { 8, AIS_CMD_FNLOAD},
74 [CMD_EMIFA] = { 5, AIS_CMD_FNLOAD},
75 [CMD_EMIFA_ASYNC] = { 5, AIS_CMD_FNLOAD},
76 [CMD_PLL] = { 3, AIS_CMD_FNLOAD},
77 [CMD_PSC] = { 1, AIS_CMD_FNLOAD},
78 [CMD_PINMUX] = { 3, AIS_CMD_FNLOAD},
79 [CMD_BOOTTABLE] = { 4, AIS_CMD_BOOTTBL},
80};
81
82static uint32_t get_cfg_value(char *token, char *name, int linenr)
83{
84 char *endptr;
85 uint32_t value;
86
87 errno = 0;
88 value = strtoul(token, &endptr, 16);
89 if (errno || (token == endptr)) {
90 fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s)\n",
91 name, linenr, token);
92 exit(EXIT_FAILURE);
93 }
94 return value;
95}
96
97static int get_ais_table_id(uint32_t *ptr)
98{
99
100 int i;
101 int func_no;
102
103 for (i = 0; i < ARRAY_SIZE(cmd_table); i++) {
104 if (*ptr == cmd_table[i].AIS_cmd) {
105 if (cmd_table[i].AIS_cmd != AIS_CMD_FNLOAD)
106 return i;
107
108 func_no = ((struct ais_cmd_func *)ptr)->func_args
109 & 0xFFFF;
110 if (func_no == ais_func_table[i].index)
111 return i;
112 }
113 }
114
115 return -1;
116}
117
118static void aisimage_print_header(const void *hdr)
119{
120 struct ais_header *ais_hdr = (struct ais_header *)hdr;
121 uint32_t *ptr;
122 struct ais_cmd_load *ais_load;
123 int id;
124
125 if (ais_hdr->magic != AIS_MAGIC_WORD) {
126 fprintf(stderr, "Error: - AIS Magic Number not found\n");
127 return;
128 }
129 fprintf(stdout, "Image Type: TI Davinci AIS Boot Image\n");
130 fprintf(stdout, "AIS magic : %08x\n", ais_hdr->magic);
131 ptr = (uint32_t *)&ais_hdr->magic;
132 ptr++;
133
134 while (*ptr != AIS_CMD_JMPCLOSE) {
135 /* Check if we find the image */
136 if (*ptr == AIS_CMD_LOAD) {
137 ais_load = (struct ais_cmd_load *)ptr;
138 fprintf(stdout, "Image at : 0x%08x size 0x%08x\n",
139 ais_load->addr,
140 ais_load->size);
141 ptr = ais_load->data + ais_load->size / sizeof(*ptr);
142 continue;
143 }
144
145 id = get_ais_table_id(ptr);
146 if (id < 0) {
147 fprintf(stderr, "Error: - AIS Image corrupted\n");
148 return;
149 }
150 fprintf(stdout, "AIS cmd : %s\n",
151 get_table_entry_name(aisimage_cmds, NULL, id));
152 ptr += cmd_table[id].nargs + IS_FNC_EXEC(id) + 1;
153 if (((void *)ptr - hdr) > ais_img_size) {
154 fprintf(stderr,
155 "AIS Image not terminated by JMPCLOSE\n");
156 return;
157 }
158 }
159}
160
161static uint32_t *ais_insert_cmd_header(uint32_t cmd, uint32_t nargs,
162 uint32_t *parms, struct image_type_params *tparams,
Simon Glass94e9d4c2011-11-19 08:20:54 +0000163 uint32_t *ptr)
Stefano Babic4962e382011-10-17 00:07:43 +0000164{
165 int i;
166
167 *ptr++ = cmd_table[cmd].AIS_cmd;
168 if (IS_FNC_EXEC(cmd))
169 *ptr++ = ((nargs & 0xFFFF) << 16) + ais_func_table[cmd].index;
170
171 /* Copy parameters */
172 for (i = 0; i < nargs; i++)
173 *ptr++ = cpu_to_le32(parms[i]);
174
175 return ptr;
176
177}
178
179static uint32_t *ais_alloc_buffer(struct mkimage_params *params)
180{
181 int dfd;
182 struct stat sbuf;
183 char *datafile = params->datafile;
184 uint32_t *ptr;
185
186 dfd = open(datafile, O_RDONLY|O_BINARY);
187 if (dfd < 0) {
188 fprintf(stderr, "%s: Can't open %s: %s\n",
189 params->cmdname, datafile, strerror(errno));
190 exit(EXIT_FAILURE);
191 }
192
193 if (fstat(dfd, &sbuf) < 0) {
194 fprintf(stderr, "%s: Can't stat %s: %s\n",
195 params->cmdname, datafile, strerror(errno));
196 exit(EXIT_FAILURE);
197 }
198
199 /*
200 * Place for header is allocated. The size is taken from
201 * the size of the datafile, that the ais_image_generate()
202 * will copy into the header. Copying the datafile
203 * is not left to the main program, because after the datafile
204 * the header must be terminated with the Jump & Close command.
205 */
206 ais_img_size = WORD_ALIGN(sbuf.st_size) + MAX_CMD_BUFFER;
207 ptr = (uint32_t *)malloc(WORD_ALIGN(sbuf.st_size) + MAX_CMD_BUFFER);
208 if (!ptr) {
209 fprintf(stderr, "%s: malloc return failure: %s\n",
210 params->cmdname, strerror(errno));
211 exit(EXIT_FAILURE);
212 }
213
214 close(dfd);
215
216 return ptr;
217}
218
219static uint32_t *ais_copy_image(struct mkimage_params *params,
220 uint32_t *aisptr)
221
222{
223 int dfd;
224 struct stat sbuf;
225 char *datafile = params->datafile;
226 void *ptr;
227
228 dfd = open(datafile, O_RDONLY|O_BINARY);
229 if (dfd < 0) {
230 fprintf(stderr, "%s: Can't open %s: %s\n",
231 params->cmdname, datafile, strerror(errno));
232 exit(EXIT_FAILURE);
233 }
234
235 if (fstat(dfd, &sbuf) < 0) {
236 fprintf(stderr, "%s: Can't stat %s: %s\n",
237 params->cmdname, datafile, strerror(errno));
238 exit(EXIT_FAILURE);
239 }
240
241 ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
242 *aisptr++ = AIS_CMD_LOAD;
243 *aisptr++ = params->ep;
244 *aisptr++ = sbuf.st_size;
245 memcpy((void *)aisptr, ptr, sbuf.st_size);
246 aisptr += WORD_ALIGN(sbuf.st_size) / sizeof(uint32_t);
247
248 (void) munmap((void *)ptr, sbuf.st_size);
249 (void) close(dfd);
250
251 return aisptr;
252
253}
254
255static int aisimage_generate(struct mkimage_params *params,
256 struct image_type_params *tparams)
257{
258 FILE *fd = NULL;
259 char *line = NULL;
260 char *token, *saveptr1, *saveptr2;
261 int lineno = 0;
262 int fld;
263 size_t len;
264 int32_t cmd;
265 uint32_t nargs, cmd_parms[10];
266 uint32_t value, size;
267 char *name = params->imagename;
Simon Glass94e9d4c2011-11-19 08:20:54 +0000268 uint32_t *aishdr;
Stefano Babic4962e382011-10-17 00:07:43 +0000269
270 fd = fopen(name, "r");
271 if (fd == 0) {
272 fprintf(stderr,
273 "Error: %s - Can't open AIS configuration\n", name);
274 exit(EXIT_FAILURE);
275 }
276
277 /*
278 * the size of the header is variable and is computed
279 * scanning the configuration file.
280 */
281 tparams->header_size = 0;
282
283 /*
284 * Start allocating a buffer suitable for most command
285 * The buffer is then reallocated if it is too small
286 */
287 aishdr = ais_alloc_buffer(params);
288 tparams->hdr = aishdr;
289 *aishdr++ = AIS_MAGIC_WORD;
290
291 /* Very simple parsing, line starting with # are comments
292 * and are dropped
293 */
294 while ((getline(&line, &len, fd)) > 0) {
295 lineno++;
296
297 token = strtok_r(line, "\r\n", &saveptr1);
298 if (token == NULL)
299 continue;
300
301 /* Check inside the single line */
302 line = token;
303 fld = CFG_COMMAND;
304 cmd = CMD_INVALID;
305 nargs = 0;
306 while (token != NULL) {
307 token = strtok_r(line, " \t", &saveptr2);
308 if (token == NULL)
309 break;
310
311 /* Drop all text starting with '#' as comments */
312 if (token[0] == '#')
313 break;
314
315 switch (fld) {
316 case CFG_COMMAND:
317 cmd = get_table_entry_id(aisimage_cmds,
318 "aisimage commands", token);
319 if (cmd < 0) {
320 fprintf(stderr,
321 "Error: %s[%d] - Invalid command"
322 "(%s)\n", name, lineno, token);
323
324 exit(EXIT_FAILURE);
325 }
326 break;
327 case CFG_VALUE:
328 value = get_cfg_value(token, name, lineno);
329 cmd_parms[nargs++] = value;
330 if (nargs > cmd_table[cmd].nargs) {
331 fprintf(stderr,
332 "Error: %s[%d] - too much arguments:"
333 "(%s) for command %s\n", name,
334 lineno, token,
335 aisimage_cmds[cmd].sname);
336 exit(EXIT_FAILURE);
337 }
338 break;
339 }
340 line = NULL;
341 fld = CFG_VALUE;
342 }
343 if (cmd != CMD_INVALID) {
344 /* Now insert the command into the header */
345 aishdr = ais_insert_cmd_header(cmd, nargs, cmd_parms,
Simon Glass94e9d4c2011-11-19 08:20:54 +0000346 tparams, aishdr);
Stefano Babic4962e382011-10-17 00:07:43 +0000347 }
348
349 }
350 fclose(fd);
351
352 aishdr = ais_copy_image(params, aishdr);
353
354 /* Add Jmp & Close */
355 *aishdr++ = AIS_CMD_JMPCLOSE;
356 *aishdr++ = params->ep;
357
358 size = (aishdr - (uint32_t *)tparams->hdr) * sizeof(uint32_t);
359 tparams->header_size = size;
360
361 return 0;
362}
363
364static int aisimage_check_image_types(uint8_t type)
365{
366 if (type == IH_TYPE_AISIMAGE)
367 return EXIT_SUCCESS;
368 else
369 return EXIT_FAILURE;
370}
371
372static int aisimage_verify_header(unsigned char *ptr, int image_size,
373 struct mkimage_params *params)
374{
375 struct ais_header *ais_hdr = (struct ais_header *)ptr;
376
377 if (ais_hdr->magic != AIS_MAGIC_WORD)
378 return -FDT_ERR_BADSTRUCTURE;
379
380 /* Store the total size to remember in print_hdr */
381 ais_img_size = image_size;
382
383 return 0;
384}
385
386static void aisimage_set_header(void *ptr, struct stat *sbuf, int ifd,
387 struct mkimage_params *params)
388{
389}
390
391int aisimage_check_params(struct mkimage_params *params)
392{
393 if (!params)
394 return CFG_INVALID;
395 if (!strlen(params->imagename)) {
396 fprintf(stderr, "Error: %s - Configuration file not specified, "
397 "it is needed for aisimage generation\n",
398 params->cmdname);
399 return CFG_INVALID;
400 }
401 /*
402 * Check parameters:
403 * XIP is not allowed and verify that incompatible
404 * parameters are not sent at the same time
405 * For example, if list is required a data image must not be provided
406 */
407 return (params->dflag && (params->fflag || params->lflag)) ||
408 (params->fflag && (params->dflag || params->lflag)) ||
409 (params->lflag && (params->dflag || params->fflag)) ||
410 (params->xflag) || !(strlen(params->imagename));
411}
412
413/*
414 * aisimage parameters
415 */
416static struct image_type_params aisimage_params = {
417 .name = "TI Davinci AIS Boot Image support",
418 .header_size = 0,
419 .hdr = NULL,
420 .check_image_type = aisimage_check_image_types,
421 .verify_header = aisimage_verify_header,
422 .print_header = aisimage_print_header,
423 .set_header = aisimage_set_header,
424 .check_params = aisimage_check_params,
425 .vrec_header = aisimage_generate,
426};
427
428void init_ais_image_type(void)
429{
430 mkimage_register(&aisimage_params);
431}