blob: 1bf8ca8f76d9ad17f12dd52ea2ee00ad753d5a6d [file] [log] [blame]
Marcel Ziswilera2777ec2016-11-16 17:49:22 +01001/*
2 * Copyright (c) 2016 Toradex, Inc.
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7#include <common.h>
8#include "tdx-cfg-block.h"
9
10#if defined(CONFIG_TARGET_APALIS_IMX6) || defined(CONFIG_TARGET_COLIBRI_IMX6)
11#include <asm/arch/sys_proto.h>
12#else
13#define is_cpu_type(cpu) (0)
14#endif
15#if defined(CONFIG_CPU_PXA27X)
16#include <asm/arch-pxa/pxa.h>
17#else
18#define cpu_is_pxa27x(cpu) (0)
19#endif
20#include <cli.h>
21#include <console.h>
22#include <flash.h>
23#include <malloc.h>
24#include <mmc.h>
25#include <nand.h>
Simon Glassc62db352017-05-31 19:47:48 -060026#include <asm/mach-types.h>
Marcel Ziswilera2777ec2016-11-16 17:49:22 +010027
28DECLARE_GLOBAL_DATA_PTR;
29
30#define TAG_VALID 0xcf01
31#define TAG_MAC 0x0000
32#define TAG_HW 0x0008
33#define TAG_INVALID 0xffff
34
35#define TAG_FLAG_VALID 0x1
36
37#if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
38#define TDX_CFG_BLOCK_MAX_SIZE 512
39#elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
40#define TDX_CFG_BLOCK_MAX_SIZE 64
41#elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
42#define TDX_CFG_BLOCK_MAX_SIZE 64
43#else
44#error Toradex config block location not set
45#endif
46
47struct toradex_tag {
48 u32 len:14;
49 u32 flags:2;
50 u32 id:16;
51};
52
53bool valid_cfgblock;
54struct toradex_hw tdx_hw_tag;
55struct toradex_eth_addr tdx_eth_addr;
56u32 tdx_serial;
57
58const char * const toradex_modules[] = {
59 [0] = "UNKNOWN MODULE",
60 [1] = "Colibri PXA270 312MHz",
61 [2] = "Colibri PXA270 520MHz",
62 [3] = "Colibri PXA320 806MHz",
63 [4] = "Colibri PXA300 208MHz",
64 [5] = "Colibri PXA310 624MHz",
65 [6] = "Colibri PXA320 806MHz IT",
66 [7] = "Colibri PXA300 208MHz XT",
67 [8] = "Colibri PXA270 312MHz",
68 [9] = "Colibri PXA270 520MHz",
69 [10] = "Colibri VF50 128MB", /* not currently on sale */
70 [11] = "Colibri VF61 256MB",
71 [12] = "Colibri VF61 256MB IT",
72 [13] = "Colibri VF50 128MB IT",
73 [14] = "Colibri iMX6 Solo 256MB",
74 [15] = "Colibri iMX6 DualLite 512MB",
75 [16] = "Colibri iMX6 Solo 256MB IT",
76 [17] = "Colibri iMX6 DualLite 512MB IT",
77 [18] = "UNKNOWN MODULE",
78 [19] = "UNKNOWN MODULE",
79 [20] = "Colibri T20 256MB",
80 [21] = "Colibri T20 512MB",
81 [22] = "Colibri T20 512MB IT",
82 [23] = "Colibri T30 1GB",
83 [24] = "Colibri T20 256MB IT",
84 [25] = "Apalis T30 2GB",
85 [26] = "Apalis T30 1GB",
86 [27] = "Apalis iMX6 Quad 1GB",
87 [28] = "Apalis iMX6 Quad 2GB IT",
88 [29] = "Apalis iMX6 Dual 512MB",
89 [30] = "Colibri T30 1GB IT",
90 [31] = "Apalis T30 1GB IT",
91 [32] = "Colibri iMX7 Solo 256MB",
92 [33] = "Colibri iMX7 Dual 512MB",
93 [34] = "Apalis TK1 2GB",
94 [35] = "Apalis iMX6 Dual 1GB IT",
95};
96
97#ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_MMC
98static int tdx_cfg_block_mmc_storage(u8 *config_block, int write)
99{
100 struct mmc *mmc;
101 int dev = CONFIG_TDX_CFG_BLOCK_DEV;
102 int offset = CONFIG_TDX_CFG_BLOCK_OFFSET;
103 uint part = CONFIG_TDX_CFG_BLOCK_PART;
104 uint blk_start;
105 int ret = 0;
106
107 /* Read production parameter config block from eMMC */
108 mmc = find_mmc_device(dev);
109 if (!mmc) {
110 puts("No MMC card found\n");
111 ret = -ENODEV;
112 goto out;
113 }
Simon Glass0e513e72017-04-23 20:02:11 -0600114 if (part != mmc_get_blk_desc(mmc)->hwpart) {
Marcel Ziswilera2777ec2016-11-16 17:49:22 +0100115 if (blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part)) {
116 puts("MMC partition switch failed\n");
117 ret = -ENODEV;
118 goto out;
119 }
120 }
121 if (offset < 0)
122 offset += mmc->capacity;
123 blk_start = ALIGN(offset, mmc->write_bl_len) / mmc->write_bl_len;
124
125 if (!write) {
126 /* Careful reads a whole block of 512 bytes into config_block */
127 if (blk_dread(mmc_get_blk_desc(mmc), blk_start, 1,
128 (unsigned char *)config_block) != 1) {
129 ret = -EIO;
130 goto out;
131 }
132 /* Flush cache after read */
133 flush_cache((ulong)(unsigned char *)config_block, 512);
134 } else {
135 /* Just writing one 512 byte block */
136 if (blk_dwrite(mmc_get_blk_desc(mmc), blk_start, 1,
137 (unsigned char *)config_block) != 1) {
138 ret = -EIO;
139 goto out;
140 }
141 }
142
143out:
144 /* Switch back to regular eMMC user partition */
145 blk_select_hwpart_devnum(IF_TYPE_MMC, 0, 0);
146
147 return ret;
148}
149#endif
150
151#ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NAND
152static int read_tdx_cfg_block_from_nand(unsigned char *config_block)
153{
154 size_t size = TDX_CFG_BLOCK_MAX_SIZE;
155
156 /* Read production parameter config block from NAND page */
Grygorii Strashkobf264cd2017-06-26 19:13:06 -0500157 return nand_read_skip_bad(get_nand_dev_by_index(0),
158 CONFIG_TDX_CFG_BLOCK_OFFSET,
159 &size, NULL, TDX_CFG_BLOCK_MAX_SIZE,
160 config_block);
Marcel Ziswilera2777ec2016-11-16 17:49:22 +0100161}
162
163static int write_tdx_cfg_block_to_nand(unsigned char *config_block)
164{
165 size_t size = TDX_CFG_BLOCK_MAX_SIZE;
166
167 /* Write production parameter config block to NAND page */
Grygorii Strashkobf264cd2017-06-26 19:13:06 -0500168 return nand_write_skip_bad(get_nand_dev_by_index(0),
169 CONFIG_TDX_CFG_BLOCK_OFFSET,
Marcel Ziswilera2777ec2016-11-16 17:49:22 +0100170 &size, NULL, TDX_CFG_BLOCK_MAX_SIZE,
171 config_block, WITH_WR_VERIFY);
172}
173#endif
174
175#ifdef CONFIG_TDX_CFG_BLOCK_IS_IN_NOR
176static int read_tdx_cfg_block_from_nor(unsigned char *config_block)
177{
178 /* Read production parameter config block from NOR flash */
179 memcpy(config_block, (void *)CONFIG_TDX_CFG_BLOCK_OFFSET,
180 TDX_CFG_BLOCK_MAX_SIZE);
181 return 0;
182}
183
184static int write_tdx_cfg_block_to_nor(unsigned char *config_block)
185{
186 /* Write production parameter config block to NOR flash */
187 return flash_write((void *)config_block, CONFIG_TDX_CFG_BLOCK_OFFSET,
188 TDX_CFG_BLOCK_MAX_SIZE);
189}
190#endif
191
192int read_tdx_cfg_block(void)
193{
194 int ret = 0;
195 u8 *config_block = NULL;
196 struct toradex_tag *tag;
197 size_t size = TDX_CFG_BLOCK_MAX_SIZE;
198 int offset;
199
200 /* Allocate RAM area for config block */
201 config_block = memalign(ARCH_DMA_MINALIGN, size);
202 if (!config_block) {
203 printf("Not enough malloc space available!\n");
204 return -ENOMEM;
205 }
206
207 memset(config_block, 0, size);
208
209#if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
210 ret = tdx_cfg_block_mmc_storage(config_block, 0);
211#elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
212 ret = read_tdx_cfg_block_from_nand(config_block);
213#elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
214 ret = read_tdx_cfg_block_from_nor(config_block);
215#else
216 ret = -EINVAL;
217#endif
218 if (ret)
219 goto out;
220
221 /* Expect a valid tag first */
222 tag = (struct toradex_tag *)config_block;
223 if (tag->flags != TAG_FLAG_VALID || tag->id != TAG_VALID) {
224 valid_cfgblock = false;
225 ret = -EINVAL;
226 goto out;
227 }
228 valid_cfgblock = true;
229 offset = 4;
230
231 while (offset < TDX_CFG_BLOCK_MAX_SIZE) {
232 tag = (struct toradex_tag *)(config_block + offset);
233 offset += 4;
234 if (tag->id == TAG_INVALID)
235 break;
236
237 if (tag->flags == TAG_FLAG_VALID) {
238 switch (tag->id) {
239 case TAG_MAC:
240 memcpy(&tdx_eth_addr, config_block + offset,
241 6);
242
243 /* NIC part of MAC address is serial number */
244 tdx_serial = ntohl(tdx_eth_addr.nic) >> 8;
245 break;
246 case TAG_HW:
247 memcpy(&tdx_hw_tag, config_block + offset, 8);
248 break;
249 }
250 }
251
252 /* Get to next tag according to current tags length */
253 offset += tag->len * 4;
254 }
255
256 /* Cap product id to avoid issues with a yet unknown one */
257 if (tdx_hw_tag.prodid > (sizeof(toradex_modules) /
258 sizeof(toradex_modules[0])))
259 tdx_hw_tag.prodid = 0;
260
261out:
262 free(config_block);
263 return ret;
264}
265
266static int get_cfgblock_interactive(void)
267{
268 char message[CONFIG_SYS_CBSIZE];
269 char *soc;
270 char it = 'n';
271 int len;
272
273 if (cpu_is_pxa27x())
274 sprintf(message, "Is the module the 312 MHz version? [y/N] ");
275 else
276 sprintf(message, "Is the module an IT version? [y/N] ");
277
278 len = cli_readline(message);
279 it = console_buffer[0];
280
281 soc = getenv("soc");
282 if (!strcmp("mx6", soc)) {
283#ifdef CONFIG_MACH_TYPE
284 if (it == 'y' || it == 'Y')
285 if (is_cpu_type(MXC_CPU_MX6Q))
286 tdx_hw_tag.prodid = APALIS_IMX6Q_IT;
287 else
288 tdx_hw_tag.prodid = APALIS_IMX6D_IT;
289 else
290 if (is_cpu_type(MXC_CPU_MX6Q))
291 tdx_hw_tag.prodid = APALIS_IMX6Q;
292 else
293 tdx_hw_tag.prodid = APALIS_IMX6D;
294#else
295 if (it == 'y' || it == 'Y')
296 if (is_cpu_type(MXC_CPU_MX6DL))
297 tdx_hw_tag.prodid = COLIBRI_IMX6DL_IT;
298 else
299 tdx_hw_tag.prodid = COLIBRI_IMX6S_IT;
300 else
301 if (is_cpu_type(MXC_CPU_MX6DL))
302 tdx_hw_tag.prodid = COLIBRI_IMX6DL;
303 else
304 tdx_hw_tag.prodid = COLIBRI_IMX6S;
305#endif /* CONFIG_MACH_TYPE */
306 } else if (!strcmp("imx7d", soc)) {
307 tdx_hw_tag.prodid = COLIBRI_IMX7D;
308 } else if (!strcmp("imx7s", soc)) {
309 tdx_hw_tag.prodid = COLIBRI_IMX7S;
310 } else if (!strcmp("tegra20", soc)) {
311 if (it == 'y' || it == 'Y')
312 if (gd->ram_size == 0x10000000)
313 tdx_hw_tag.prodid = COLIBRI_T20_256MB_IT;
314 else
315 tdx_hw_tag.prodid = COLIBRI_T20_512MB_IT;
316 else
317 if (gd->ram_size == 0x10000000)
318 tdx_hw_tag.prodid = COLIBRI_T20_256MB;
319 else
320 tdx_hw_tag.prodid = COLIBRI_T20_512MB;
321 } else if (cpu_is_pxa27x()) {
322 if (it == 'y' || it == 'Y')
323 tdx_hw_tag.prodid = COLIBRI_PXA270_312MHZ;
324 else
325 tdx_hw_tag.prodid = COLIBRI_PXA270_520MHZ;
326#ifdef CONFIG_MACH_TYPE
327 } else if (!strcmp("tegra30", soc)) {
328 if (CONFIG_MACH_TYPE == MACH_TYPE_APALIS_T30) {
329 if (it == 'y' || it == 'Y')
330 tdx_hw_tag.prodid = APALIS_T30_IT;
331 else
332 if (gd->ram_size == 0x40000000)
333 tdx_hw_tag.prodid = APALIS_T30_1GB;
334 else
335 tdx_hw_tag.prodid = APALIS_T30_2GB;
336 } else {
337 if (it == 'y' || it == 'Y')
338 tdx_hw_tag.prodid = COLIBRI_T30_IT;
339 else
340 tdx_hw_tag.prodid = COLIBRI_T30;
341 }
342#endif /* CONFIG_MACH_TYPE */
343 } else if (!strcmp("tegra124", soc)) {
344 tdx_hw_tag.prodid = APALIS_TK1_2GB;
345 } else if (!strcmp("vf500", soc)) {
346 if (it == 'y' || it == 'Y')
347 tdx_hw_tag.prodid = COLIBRI_VF50_IT;
348 else
349 tdx_hw_tag.prodid = COLIBRI_VF50;
350 } else if (!strcmp("vf610", soc)) {
351 if (it == 'y' || it == 'Y')
352 tdx_hw_tag.prodid = COLIBRI_VF61_IT;
353 else
354 tdx_hw_tag.prodid = COLIBRI_VF61;
355 } else {
356 printf("Module type not detectable due to unknown SoC\n");
357 return -1;
358 }
359
360 while (len < 4) {
361 sprintf(message, "Enter the module version (e.g. V1.1B): V");
362 len = cli_readline(message);
363 }
364
365 tdx_hw_tag.ver_major = console_buffer[0] - '0';
366 tdx_hw_tag.ver_minor = console_buffer[2] - '0';
367 tdx_hw_tag.ver_assembly = console_buffer[3] - 'A';
368
369 if (cpu_is_pxa27x() && (tdx_hw_tag.ver_major == 1))
370 tdx_hw_tag.prodid -= (COLIBRI_PXA270_312MHZ -
371 COLIBRI_PXA270_V1_312MHZ);
372
373 while (len < 8) {
374 sprintf(message, "Enter module serial number: ");
375 len = cli_readline(message);
376 }
377
378 tdx_serial = simple_strtoul(console_buffer, NULL, 10);
379
380 return 0;
381}
382
383static int get_cfgblock_barcode(char *barcode)
384{
385 if (strlen(barcode) < 16) {
386 printf("Argument too short, barcode is 16 chars long\n");
387 return -1;
388 }
389
390 /* Get hardware information from the first 8 digits */
391 tdx_hw_tag.ver_major = barcode[4] - '0';
392 tdx_hw_tag.ver_minor = barcode[5] - '0';
393 tdx_hw_tag.ver_assembly = barcode[7] - '0';
394
395 barcode[4] = '\0';
396 tdx_hw_tag.prodid = simple_strtoul(barcode, NULL, 10);
397
398 /* Parse second part of the barcode (serial number */
399 barcode += 8;
400 tdx_serial = simple_strtoul(barcode, NULL, 10);
401
402 return 0;
403}
404
405static int do_cfgblock_create(cmd_tbl_t *cmdtp, int flag, int argc,
406 char * const argv[])
407{
408 u8 *config_block;
409 struct toradex_tag *tag;
410 size_t size = TDX_CFG_BLOCK_MAX_SIZE;
411 int offset = 0;
412 int ret = CMD_RET_SUCCESS;
413 int err;
414
415 /* Allocate RAM area for config block */
416 config_block = memalign(ARCH_DMA_MINALIGN, size);
417 if (!config_block) {
418 printf("Not enough malloc space available!\n");
419 return CMD_RET_FAILURE;
420 }
421
422 memset(config_block, 0xff, size);
423
424 read_tdx_cfg_block();
425 if (valid_cfgblock) {
426#if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
427 /*
428 * On NAND devices, recreation is only allowed if the page is
429 * empty (config block invalid...)
430 */
431 printf("NAND erase block %d need to be erased before creating a Toradex config block\n",
Grygorii Strashkobf264cd2017-06-26 19:13:06 -0500432 CONFIG_TDX_CFG_BLOCK_OFFSET /
433 get_nand_dev_by_index(0)->erasesize);
Marcel Ziswilera2777ec2016-11-16 17:49:22 +0100434 goto out;
435#elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
436 /*
437 * On NOR devices, recreation is only allowed if the sector is
438 * empty and write protection is off (config block invalid...)
439 */
440 printf("NOR sector at offset 0x%02x need to be erased and unprotected before creating a Toradex config block\n",
441 CONFIG_TDX_CFG_BLOCK_OFFSET);
442 goto out;
443#else
444 char message[CONFIG_SYS_CBSIZE];
445 sprintf(message,
446 "A valid Toradex config block is present, still recreate? [y/N] ");
447
448 if (!cli_readline(message))
449 goto out;
450
451 if (console_buffer[0] != 'y' && console_buffer[0] != 'Y')
452 goto out;
453#endif
454 }
455
456 /* Parse new Toradex config block data... */
457 if (argc < 3)
458 err = get_cfgblock_interactive();
459 else
460 err = get_cfgblock_barcode(argv[2]);
461
462 if (err) {
463 ret = CMD_RET_FAILURE;
464 goto out;
465 }
466
467 /* Convert serial number to MAC address (the storage format) */
468 tdx_eth_addr.oui = htonl(0x00142dUL << 8);
469 tdx_eth_addr.nic = htonl(tdx_serial << 8);
470
471 /* Valid Tag */
472 tag = (struct toradex_tag *)config_block;
473 tag->id = TAG_VALID;
474 tag->flags = TAG_FLAG_VALID;
475 tag->len = 0;
476 offset += 4;
477
478 /* Product Tag */
479 tag = (struct toradex_tag *)(config_block + offset);
480 tag->id = TAG_HW;
481 tag->flags = TAG_FLAG_VALID;
482 tag->len = 2;
483 offset += 4;
484
485 memcpy(config_block + offset, &tdx_hw_tag, 8);
486 offset += 8;
487
488 /* MAC Tag */
489 tag = (struct toradex_tag *)(config_block + offset);
490 tag->id = TAG_MAC;
491 tag->flags = TAG_FLAG_VALID;
492 tag->len = 2;
493 offset += 4;
494
495 memcpy(config_block + offset, &tdx_eth_addr, 6);
496 offset += 6;
497 memset(config_block + offset, 0, 32 - offset);
498
499#if defined(CONFIG_TDX_CFG_BLOCK_IS_IN_MMC)
500 err = tdx_cfg_block_mmc_storage(config_block, 1);
501#elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NAND)
502 err = write_tdx_cfg_block_to_nand(config_block);
503#elif defined(CONFIG_TDX_CFG_BLOCK_IS_IN_NOR)
504 err = write_tdx_cfg_block_to_nor(config_block);
505#else
506 err = -EINVAL;
507#endif
508 if (err) {
509 printf("Failed to write Toradex config block: %d\n", ret);
510 ret = CMD_RET_FAILURE;
511 goto out;
512 }
513
514 printf("Toradex config block successfully written\n");
515
516out:
517 free(config_block);
518 return ret;
519}
520
521static int do_cfgblock(cmd_tbl_t *cmdtp, int flag, int argc,
522 char * const argv[])
523{
524 int ret;
525
526 if (argc < 2)
527 return CMD_RET_USAGE;
528
529 if (!strcmp(argv[1], "create")) {
530 return do_cfgblock_create(cmdtp, flag, argc, argv);
531 } else if (!strcmp(argv[1], "reload")) {
532 ret = read_tdx_cfg_block();
533 if (ret) {
534 printf("Failed to reload Toradex config block: %d\n",
535 ret);
536 return CMD_RET_FAILURE;
537 }
538 return CMD_RET_SUCCESS;
539 }
540
541 return CMD_RET_USAGE;
542}
543
544U_BOOT_CMD(
545 cfgblock, 3, 0, do_cfgblock,
546 "Toradex config block handling commands",
547 "create [barcode] - (Re-)create Toradex config block\n"
548 "cfgblock reload - Reload Toradex config block from flash"
549);