mpc8360emds.c 18 KB

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  1. /*
  2. * Copyright (C) 2006 Freescale Semiconductor, Inc.
  3. *
  4. * Dave Liu <daveliu@freescale.com>
  5. * based on board/mpc8349emds/mpc8349emds.c
  6. *
  7. * See file CREDITS for list of people who contributed to this
  8. * project.
  9. *
  10. * This program is free software; you can redistribute it and/or
  11. * modify it under the terms of the GNU General Public License as
  12. * published by the Free Software Foundation; either version 2 of
  13. * the License, or (at your option) any later version.
  14. */
  15. #include <common.h>
  16. #include <ioports.h>
  17. #include <mpc83xx.h>
  18. #include <i2c.h>
  19. #include <spd.h>
  20. #include <miiphy.h>
  21. #include <command.h>
  22. #if defined(CONFIG_PCI)
  23. #include <pci.h>
  24. #endif
  25. #if defined(CONFIG_SPD_EEPROM)
  26. #include <spd_sdram.h>
  27. #else
  28. #include <asm/mmu.h>
  29. #endif
  30. #if defined(CONFIG_OF_FLAT_TREE)
  31. #include <ft_build.h>
  32. #endif
  33. const qe_iop_conf_t qe_iop_conf_tab[] = {
  34. /* GETH1 */
  35. {0, 3, 1, 0, 1}, /* TxD0 */
  36. {0, 4, 1, 0, 1}, /* TxD1 */
  37. {0, 5, 1, 0, 1}, /* TxD2 */
  38. {0, 6, 1, 0, 1}, /* TxD3 */
  39. {1, 6, 1, 0, 3}, /* TxD4 */
  40. {1, 7, 1, 0, 1}, /* TxD5 */
  41. {1, 9, 1, 0, 2}, /* TxD6 */
  42. {1, 10, 1, 0, 2}, /* TxD7 */
  43. {0, 9, 2, 0, 1}, /* RxD0 */
  44. {0, 10, 2, 0, 1}, /* RxD1 */
  45. {0, 11, 2, 0, 1}, /* RxD2 */
  46. {0, 12, 2, 0, 1}, /* RxD3 */
  47. {0, 13, 2, 0, 1}, /* RxD4 */
  48. {1, 1, 2, 0, 2}, /* RxD5 */
  49. {1, 0, 2, 0, 2}, /* RxD6 */
  50. {1, 4, 2, 0, 2}, /* RxD7 */
  51. {0, 7, 1, 0, 1}, /* TX_EN */
  52. {0, 8, 1, 0, 1}, /* TX_ER */
  53. {0, 15, 2, 0, 1}, /* RX_DV */
  54. {0, 16, 2, 0, 1}, /* RX_ER */
  55. {0, 0, 2, 0, 1}, /* RX_CLK */
  56. {2, 9, 1, 0, 3}, /* GTX_CLK - CLK10 */
  57. {2, 8, 2, 0, 1}, /* GTX125 - CLK9 */
  58. /* GETH2 */
  59. {0, 17, 1, 0, 1}, /* TxD0 */
  60. {0, 18, 1, 0, 1}, /* TxD1 */
  61. {0, 19, 1, 0, 1}, /* TxD2 */
  62. {0, 20, 1, 0, 1}, /* TxD3 */
  63. {1, 2, 1, 0, 1}, /* TxD4 */
  64. {1, 3, 1, 0, 2}, /* TxD5 */
  65. {1, 5, 1, 0, 3}, /* TxD6 */
  66. {1, 8, 1, 0, 3}, /* TxD7 */
  67. {0, 23, 2, 0, 1}, /* RxD0 */
  68. {0, 24, 2, 0, 1}, /* RxD1 */
  69. {0, 25, 2, 0, 1}, /* RxD2 */
  70. {0, 26, 2, 0, 1}, /* RxD3 */
  71. {0, 27, 2, 0, 1}, /* RxD4 */
  72. {1, 12, 2, 0, 2}, /* RxD5 */
  73. {1, 13, 2, 0, 3}, /* RxD6 */
  74. {1, 11, 2, 0, 2}, /* RxD7 */
  75. {0, 21, 1, 0, 1}, /* TX_EN */
  76. {0, 22, 1, 0, 1}, /* TX_ER */
  77. {0, 29, 2, 0, 1}, /* RX_DV */
  78. {0, 30, 2, 0, 1}, /* RX_ER */
  79. {0, 31, 2, 0, 1}, /* RX_CLK */
  80. {2, 2, 1, 0, 2}, /* GTX_CLK = CLK10 */
  81. {2, 3, 2, 0, 1}, /* GTX125 - CLK4 */
  82. {0, 1, 3, 0, 2}, /* MDIO */
  83. {0, 2, 1, 0, 1}, /* MDC */
  84. {0, 0, 0, 0, QE_IOP_TAB_END}, /* END of table */
  85. };
  86. int board_early_init_f(void)
  87. {
  88. volatile u8 *bcsr = (volatile u8 *)CFG_BCSR;
  89. /* Enable flash write */
  90. bcsr[0xa] &= ~0x04;
  91. return 0;
  92. }
  93. #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC)
  94. extern void ddr_enable_ecc(unsigned int dram_size);
  95. #endif
  96. int fixed_sdram(void);
  97. void sdram_init(void);
  98. long int initdram(int board_type)
  99. {
  100. volatile immap_t *im = (immap_t *) CFG_IMMR;
  101. u32 msize = 0;
  102. if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
  103. return -1;
  104. /* DDR SDRAM - Main SODIMM */
  105. im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE & LAWBAR_BAR;
  106. #if defined(CONFIG_SPD_EEPROM)
  107. msize = spd_sdram();
  108. #else
  109. msize = fixed_sdram();
  110. #endif
  111. #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC)
  112. /*
  113. * Initialize DDR ECC byte
  114. */
  115. ddr_enable_ecc(msize * 1024 * 1024);
  116. #endif
  117. /*
  118. * Initialize SDRAM if it is on local bus.
  119. */
  120. sdram_init();
  121. puts(" DDR RAM: ");
  122. /* return total bus SDRAM size(bytes) -- DDR */
  123. return (msize * 1024 * 1024);
  124. }
  125. #if !defined(CONFIG_SPD_EEPROM)
  126. /*************************************************************************
  127. * fixed sdram init -- doesn't use serial presence detect.
  128. ************************************************************************/
  129. int fixed_sdram(void)
  130. {
  131. volatile immap_t *im = (immap_t *) CFG_IMMR;
  132. u32 msize = 0;
  133. u32 ddr_size;
  134. u32 ddr_size_log2;
  135. msize = CFG_DDR_SIZE;
  136. for (ddr_size = msize << 20, ddr_size_log2 = 0;
  137. (ddr_size > 1); ddr_size = ddr_size >> 1, ddr_size_log2++) {
  138. if (ddr_size & 1) {
  139. return -1;
  140. }
  141. }
  142. im->sysconf.ddrlaw[0].ar =
  143. LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
  144. #if (CFG_DDR_SIZE != 256)
  145. #warning Currenly any ddr size other than 256 is not supported
  146. #endif
  147. im->ddr.csbnds[0].csbnds = 0x00000007;
  148. im->ddr.csbnds[1].csbnds = 0x0008000f;
  149. im->ddr.cs_config[0] = CFG_DDR_CONFIG;
  150. im->ddr.cs_config[1] = CFG_DDR_CONFIG;
  151. im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
  152. im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;
  153. im->ddr.sdram_cfg = CFG_DDR_CONTROL;
  154. im->ddr.sdram_mode = CFG_DDR_MODE;
  155. im->ddr.sdram_interval = CFG_DDR_INTERVAL;
  156. udelay(200);
  157. im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
  158. return msize;
  159. }
  160. #endif /*!CFG_SPD_EEPROM */
  161. int checkboard(void)
  162. {
  163. puts("Board: Freescale MPC8360EMDS\n");
  164. return 0;
  165. }
  166. /*
  167. * if MPC8360EMDS is soldered with SDRAM
  168. */
  169. #if defined(CFG_BR2_PRELIM) \
  170. && defined(CFG_OR2_PRELIM) \
  171. && defined(CFG_LBLAWBAR2_PRELIM) \
  172. && defined(CFG_LBLAWAR2_PRELIM)
  173. /*
  174. * Initialize SDRAM memory on the Local Bus.
  175. */
  176. void sdram_init(void)
  177. {
  178. volatile immap_t *immap = (immap_t *) CFG_IMMR;
  179. volatile lbus83xx_t *lbc = &immap->lbus;
  180. uint *sdram_addr = (uint *) CFG_LBC_SDRAM_BASE;
  181. puts("\n SDRAM on Local Bus: ");
  182. print_size(CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n");
  183. /*
  184. * Setup SDRAM Base and Option Registers, already done in cpu_init.c
  185. */
  186. /*setup mtrpt, lsrt and lbcr for LB bus */
  187. lbc->lbcr = CFG_LBC_LBCR;
  188. lbc->mrtpr = CFG_LBC_MRTPR;
  189. lbc->lsrt = CFG_LBC_LSRT;
  190. asm("sync");
  191. /*
  192. * Configure the SDRAM controller Machine Mode Register.
  193. */
  194. lbc->lsdmr = CFG_LBC_LSDMR_5; /* Normal Operation */
  195. lbc->lsdmr = CFG_LBC_LSDMR_1; /* Precharge All Banks */
  196. asm("sync");
  197. *sdram_addr = 0xff;
  198. udelay(100);
  199. /*
  200. * We need do 8 times auto refresh operation.
  201. */
  202. lbc->lsdmr = CFG_LBC_LSDMR_2;
  203. asm("sync");
  204. *sdram_addr = 0xff; /* 1 times */
  205. udelay(100);
  206. *sdram_addr = 0xff; /* 2 times */
  207. udelay(100);
  208. *sdram_addr = 0xff; /* 3 times */
  209. udelay(100);
  210. *sdram_addr = 0xff; /* 4 times */
  211. udelay(100);
  212. *sdram_addr = 0xff; /* 5 times */
  213. udelay(100);
  214. *sdram_addr = 0xff; /* 6 times */
  215. udelay(100);
  216. *sdram_addr = 0xff; /* 7 times */
  217. udelay(100);
  218. *sdram_addr = 0xff; /* 8 times */
  219. udelay(100);
  220. /* Mode register write operation */
  221. lbc->lsdmr = CFG_LBC_LSDMR_4;
  222. asm("sync");
  223. *(sdram_addr + 0xcc) = 0xff;
  224. udelay(100);
  225. /* Normal operation */
  226. lbc->lsdmr = CFG_LBC_LSDMR_5 | 0x40000000;
  227. asm("sync");
  228. *sdram_addr = 0xff;
  229. udelay(100);
  230. }
  231. #else
  232. void sdram_init(void)
  233. {
  234. puts("SDRAM on Local Bus is NOT available!\n");
  235. }
  236. #endif
  237. #if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD)
  238. /*
  239. * ECC user commands
  240. */
  241. void ecc_print_status(void)
  242. {
  243. volatile immap_t *immap = (immap_t *) CFG_IMMR;
  244. volatile ddr83xx_t *ddr = &immap->ddr;
  245. printf("\nECC mode: %s\n\n",
  246. (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) ? "ON" : "OFF");
  247. /* Interrupts */
  248. printf("Memory Error Interrupt Enable:\n");
  249. printf(" Multiple-Bit Error Interrupt Enable: %d\n",
  250. (ddr->err_int_en & ECC_ERR_INT_EN_MBEE) ? 1 : 0);
  251. printf(" Single-Bit Error Interrupt Enable: %d\n",
  252. (ddr->err_int_en & ECC_ERR_INT_EN_SBEE) ? 1 : 0);
  253. printf(" Memory Select Error Interrupt Enable: %d\n\n",
  254. (ddr->err_int_en & ECC_ERR_INT_EN_MSEE) ? 1 : 0);
  255. /* Error disable */
  256. printf("Memory Error Disable:\n");
  257. printf(" Multiple-Bit Error Disable: %d\n",
  258. (ddr->err_disable & ECC_ERROR_DISABLE_MBED) ? 1 : 0);
  259. printf(" Sinle-Bit Error Disable: %d\n",
  260. (ddr->err_disable & ECC_ERROR_DISABLE_SBED) ? 1 : 0);
  261. printf(" Memory Select Error Disable: %d\n\n",
  262. (ddr->err_disable & ECC_ERROR_DISABLE_MSED) ? 1 : 0);
  263. /* Error injection */
  264. printf("Memory Data Path Error Injection Mask High/Low: %08lx %08lx\n",
  265. ddr->data_err_inject_hi, ddr->data_err_inject_lo);
  266. printf("Memory Data Path Error Injection Mask ECC:\n");
  267. printf(" ECC Mirror Byte: %d\n",
  268. (ddr->ecc_err_inject & ECC_ERR_INJECT_EMB) ? 1 : 0);
  269. printf(" ECC Injection Enable: %d\n",
  270. (ddr->ecc_err_inject & ECC_ERR_INJECT_EIEN) ? 1 : 0);
  271. printf(" ECC Error Injection Mask: 0x%02x\n\n",
  272. ddr->ecc_err_inject & ECC_ERR_INJECT_EEIM);
  273. /* SBE counter/threshold */
  274. printf("Memory Single-Bit Error Management (0..255):\n");
  275. printf(" Single-Bit Error Threshold: %d\n",
  276. (ddr->err_sbe & ECC_ERROR_MAN_SBET) >> ECC_ERROR_MAN_SBET_SHIFT);
  277. printf(" Single-Bit Error Counter: %d\n\n",
  278. (ddr->err_sbe & ECC_ERROR_MAN_SBEC) >> ECC_ERROR_MAN_SBEC_SHIFT);
  279. /* Error detect */
  280. printf("Memory Error Detect:\n");
  281. printf(" Multiple Memory Errors: %d\n",
  282. (ddr->err_detect & ECC_ERROR_DETECT_MME) ? 1 : 0);
  283. printf(" Multiple-Bit Error: %d\n",
  284. (ddr->err_detect & ECC_ERROR_DETECT_MBE) ? 1 : 0);
  285. printf(" Single-Bit Error: %d\n",
  286. (ddr->err_detect & ECC_ERROR_DETECT_SBE) ? 1 : 0);
  287. printf(" Memory Select Error: %d\n\n",
  288. (ddr->err_detect & ECC_ERROR_DETECT_MSE) ? 1 : 0);
  289. /* Capture data */
  290. printf("Memory Error Address Capture: 0x%08lx\n", ddr->capture_address);
  291. printf("Memory Data Path Read Capture High/Low: %08lx %08lx\n",
  292. ddr->capture_data_hi, ddr->capture_data_lo);
  293. printf("Memory Data Path Read Capture ECC: 0x%02x\n\n",
  294. ddr->capture_ecc & CAPTURE_ECC_ECE);
  295. printf("Memory Error Attributes Capture:\n");
  296. printf(" Data Beat Number: %d\n",
  297. (ddr->capture_attributes & ECC_CAPT_ATTR_BNUM) >>
  298. ECC_CAPT_ATTR_BNUM_SHIFT);
  299. printf(" Transaction Size: %d\n",
  300. (ddr->capture_attributes & ECC_CAPT_ATTR_TSIZ) >>
  301. ECC_CAPT_ATTR_TSIZ_SHIFT);
  302. printf(" Transaction Source: %d\n",
  303. (ddr->capture_attributes & ECC_CAPT_ATTR_TSRC) >>
  304. ECC_CAPT_ATTR_TSRC_SHIFT);
  305. printf(" Transaction Type: %d\n",
  306. (ddr->capture_attributes & ECC_CAPT_ATTR_TTYP) >>
  307. ECC_CAPT_ATTR_TTYP_SHIFT);
  308. printf(" Error Information Valid: %d\n\n",
  309. ddr->capture_attributes & ECC_CAPT_ATTR_VLD);
  310. }
  311. int do_ecc(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
  312. {
  313. volatile immap_t *immap = (immap_t *) CFG_IMMR;
  314. volatile ddr83xx_t *ddr = &immap->ddr;
  315. volatile u32 val;
  316. u64 *addr;
  317. u32 count;
  318. register u64 *i;
  319. u32 ret[2];
  320. u32 pattern[2];
  321. u32 writeback[2];
  322. /* The pattern is written into memory to generate error */
  323. pattern[0] = 0xfedcba98UL;
  324. pattern[1] = 0x76543210UL;
  325. /* After injecting error, re-initialize the memory with the value */
  326. writeback[0] = 0x01234567UL;
  327. writeback[1] = 0x89abcdefUL;
  328. if (argc > 4) {
  329. printf("Usage:\n%s\n", cmdtp->usage);
  330. return 1;
  331. }
  332. if (argc == 2) {
  333. if (strcmp(argv[1], "status") == 0) {
  334. ecc_print_status();
  335. return 0;
  336. } else if (strcmp(argv[1], "captureclear") == 0) {
  337. ddr->capture_address = 0;
  338. ddr->capture_data_hi = 0;
  339. ddr->capture_data_lo = 0;
  340. ddr->capture_ecc = 0;
  341. ddr->capture_attributes = 0;
  342. return 0;
  343. }
  344. }
  345. if (argc == 3) {
  346. if (strcmp(argv[1], "sbecnt") == 0) {
  347. val = simple_strtoul(argv[2], NULL, 10);
  348. if (val > 255) {
  349. printf("Incorrect Counter value, "
  350. "should be 0..255\n");
  351. return 1;
  352. }
  353. val = (val << ECC_ERROR_MAN_SBEC_SHIFT);
  354. val |= (ddr->err_sbe & ECC_ERROR_MAN_SBET);
  355. ddr->err_sbe = val;
  356. return 0;
  357. } else if (strcmp(argv[1], "sbethr") == 0) {
  358. val = simple_strtoul(argv[2], NULL, 10);
  359. if (val > 255) {
  360. printf("Incorrect Counter value, "
  361. "should be 0..255\n");
  362. return 1;
  363. }
  364. val = (val << ECC_ERROR_MAN_SBET_SHIFT);
  365. val |= (ddr->err_sbe & ECC_ERROR_MAN_SBEC);
  366. ddr->err_sbe = val;
  367. return 0;
  368. } else if (strcmp(argv[1], "errdisable") == 0) {
  369. val = ddr->err_disable;
  370. if (strcmp(argv[2], "+sbe") == 0) {
  371. val |= ECC_ERROR_DISABLE_SBED;
  372. } else if (strcmp(argv[2], "+mbe") == 0) {
  373. val |= ECC_ERROR_DISABLE_MBED;
  374. } else if (strcmp(argv[2], "+mse") == 0) {
  375. val |= ECC_ERROR_DISABLE_MSED;
  376. } else if (strcmp(argv[2], "+all") == 0) {
  377. val |= (ECC_ERROR_DISABLE_SBED |
  378. ECC_ERROR_DISABLE_MBED |
  379. ECC_ERROR_DISABLE_MSED);
  380. } else if (strcmp(argv[2], "-sbe") == 0) {
  381. val &= ~ECC_ERROR_DISABLE_SBED;
  382. } else if (strcmp(argv[2], "-mbe") == 0) {
  383. val &= ~ECC_ERROR_DISABLE_MBED;
  384. } else if (strcmp(argv[2], "-mse") == 0) {
  385. val &= ~ECC_ERROR_DISABLE_MSED;
  386. } else if (strcmp(argv[2], "-all") == 0) {
  387. val &= ~(ECC_ERROR_DISABLE_SBED |
  388. ECC_ERROR_DISABLE_MBED |
  389. ECC_ERROR_DISABLE_MSED);
  390. } else {
  391. printf("Incorrect err_disable field\n");
  392. return 1;
  393. }
  394. ddr->err_disable = val;
  395. __asm__ __volatile__("sync");
  396. __asm__ __volatile__("isync");
  397. return 0;
  398. } else if (strcmp(argv[1], "errdetectclr") == 0) {
  399. val = ddr->err_detect;
  400. if (strcmp(argv[2], "mme") == 0) {
  401. val |= ECC_ERROR_DETECT_MME;
  402. } else if (strcmp(argv[2], "sbe") == 0) {
  403. val |= ECC_ERROR_DETECT_SBE;
  404. } else if (strcmp(argv[2], "mbe") == 0) {
  405. val |= ECC_ERROR_DETECT_MBE;
  406. } else if (strcmp(argv[2], "mse") == 0) {
  407. val |= ECC_ERROR_DETECT_MSE;
  408. } else if (strcmp(argv[2], "all") == 0) {
  409. val |= (ECC_ERROR_DETECT_MME |
  410. ECC_ERROR_DETECT_MBE |
  411. ECC_ERROR_DETECT_SBE |
  412. ECC_ERROR_DETECT_MSE);
  413. } else {
  414. printf("Incorrect err_detect field\n");
  415. return 1;
  416. }
  417. ddr->err_detect = val;
  418. return 0;
  419. } else if (strcmp(argv[1], "injectdatahi") == 0) {
  420. val = simple_strtoul(argv[2], NULL, 16);
  421. ddr->data_err_inject_hi = val;
  422. return 0;
  423. } else if (strcmp(argv[1], "injectdatalo") == 0) {
  424. val = simple_strtoul(argv[2], NULL, 16);
  425. ddr->data_err_inject_lo = val;
  426. return 0;
  427. } else if (strcmp(argv[1], "injectecc") == 0) {
  428. val = simple_strtoul(argv[2], NULL, 16);
  429. if (val > 0xff) {
  430. printf("Incorrect ECC inject mask, "
  431. "should be 0x00..0xff\n");
  432. return 1;
  433. }
  434. val |= (ddr->ecc_err_inject & ~ECC_ERR_INJECT_EEIM);
  435. ddr->ecc_err_inject = val;
  436. return 0;
  437. } else if (strcmp(argv[1], "inject") == 0) {
  438. val = ddr->ecc_err_inject;
  439. if (strcmp(argv[2], "en") == 0)
  440. val |= ECC_ERR_INJECT_EIEN;
  441. else if (strcmp(argv[2], "dis") == 0)
  442. val &= ~ECC_ERR_INJECT_EIEN;
  443. else
  444. printf("Incorrect command\n");
  445. ddr->ecc_err_inject = val;
  446. __asm__ __volatile__("sync");
  447. __asm__ __volatile__("isync");
  448. return 0;
  449. } else if (strcmp(argv[1], "mirror") == 0) {
  450. val = ddr->ecc_err_inject;
  451. if (strcmp(argv[2], "en") == 0)
  452. val |= ECC_ERR_INJECT_EMB;
  453. else if (strcmp(argv[2], "dis") == 0)
  454. val &= ~ECC_ERR_INJECT_EMB;
  455. else
  456. printf("Incorrect command\n");
  457. ddr->ecc_err_inject = val;
  458. return 0;
  459. }
  460. }
  461. if (argc == 4) {
  462. if (strcmp(argv[1], "testdw") == 0) {
  463. addr = (u64 *) simple_strtoul(argv[2], NULL, 16);
  464. count = simple_strtoul(argv[3], NULL, 16);
  465. if ((u32) addr % 8) {
  466. printf("Address not alligned on "
  467. "double word boundary\n");
  468. return 1;
  469. }
  470. disable_interrupts();
  471. for (i = addr; i < addr + count; i++) {
  472. /* enable injects */
  473. ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN;
  474. __asm__ __volatile__("sync");
  475. __asm__ __volatile__("isync");
  476. /* write memory location injecting errors */
  477. ppcDWstore((u32 *) i, pattern);
  478. __asm__ __volatile__("sync");
  479. /* disable injects */
  480. ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN;
  481. __asm__ __volatile__("sync");
  482. __asm__ __volatile__("isync");
  483. /* read data, this generates ECC error */
  484. ppcDWload((u32 *) i, ret);
  485. __asm__ __volatile__("sync");
  486. /* re-initialize memory, double word write the location again,
  487. * generates new ECC code this time */
  488. ppcDWstore((u32 *) i, writeback);
  489. __asm__ __volatile__("sync");
  490. }
  491. enable_interrupts();
  492. return 0;
  493. }
  494. if (strcmp(argv[1], "testword") == 0) {
  495. addr = (u64 *) simple_strtoul(argv[2], NULL, 16);
  496. count = simple_strtoul(argv[3], NULL, 16);
  497. if ((u32) addr % 8) {
  498. printf("Address not alligned on "
  499. "double word boundary\n");
  500. return 1;
  501. }
  502. disable_interrupts();
  503. for (i = addr; i < addr + count; i++) {
  504. /* enable injects */
  505. ddr->ecc_err_inject |= ECC_ERR_INJECT_EIEN;
  506. __asm__ __volatile__("sync");
  507. __asm__ __volatile__("isync");
  508. /* write memory location injecting errors */
  509. *(u32 *) i = 0xfedcba98UL;
  510. __asm__ __volatile__("sync");
  511. /* sub double word write,
  512. * bus will read-modify-write,
  513. * generates ECC error */
  514. *((u32 *) i + 1) = 0x76543210UL;
  515. __asm__ __volatile__("sync");
  516. /* disable injects */
  517. ddr->ecc_err_inject &= ~ECC_ERR_INJECT_EIEN;
  518. __asm__ __volatile__("sync");
  519. __asm__ __volatile__("isync");
  520. /* re-initialize memory,
  521. * double word write the location again,
  522. * generates new ECC code this time */
  523. ppcDWstore((u32 *) i, writeback);
  524. __asm__ __volatile__("sync");
  525. }
  526. enable_interrupts();
  527. return 0;
  528. }
  529. }
  530. printf("Usage:\n%s\n", cmdtp->usage);
  531. return 1;
  532. }
  533. U_BOOT_CMD(ecc, 4, 0, do_ecc,
  534. "ecc - support for DDR ECC features\n",
  535. "status - print out status info\n"
  536. "ecc captureclear - clear capture regs data\n"
  537. "ecc sbecnt <val> - set Single-Bit Error counter\n"
  538. "ecc sbethr <val> - set Single-Bit Threshold\n"
  539. "ecc errdisable <flag> - clear/set disable Memory Error Disable, flag:\n"
  540. " [-|+]sbe - Single-Bit Error\n"
  541. " [-|+]mbe - Multiple-Bit Error\n"
  542. " [-|+]mse - Memory Select Error\n"
  543. " [-|+]all - all errors\n"
  544. "ecc errdetectclr <flag> - clear Memory Error Detect, flag:\n"
  545. " mme - Multiple Memory Errors\n"
  546. " sbe - Single-Bit Error\n"
  547. " mbe - Multiple-Bit Error\n"
  548. " mse - Memory Select Error\n"
  549. " all - all errors\n"
  550. "ecc injectdatahi <hi> - set Memory Data Path Error Injection Mask High\n"
  551. "ecc injectdatalo <lo> - set Memory Data Path Error Injection Mask Low\n"
  552. "ecc injectecc <ecc> - set ECC Error Injection Mask\n"
  553. "ecc inject <en|dis> - enable/disable error injection\n"
  554. "ecc mirror <en|dis> - enable/disable mirror byte\n"
  555. "ecc testdw <addr> <cnt> - test mem region with double word access:\n"
  556. " - enables injects\n"
  557. " - writes pattern injecting errors with double word access\n"
  558. " - disables injects\n"
  559. " - reads pattern back with double word access, generates error\n"
  560. " - re-inits memory\n"
  561. "ecc testword <addr> <cnt> - test mem region with word access:\n"
  562. " - enables injects\n"
  563. " - writes pattern injecting errors with word access\n"
  564. " - writes pattern with word access, generates error\n"
  565. " - disables injects\n" " - re-inits memory");
  566. #endif /* if defined(CONFIG_DDR_ECC) && defined(CONFIG_DDR_ECC_CMD) */
  567. #if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
  568. void
  569. ft_board_setup(void *blob, bd_t *bd)
  570. {
  571. u32 *p;
  572. int len;
  573. #ifdef CONFIG_PCI
  574. ft_pci_setup(blob, bd);
  575. #endif
  576. ft_cpu_setup(blob, bd);
  577. p = ft_get_prop(blob, "/memory/reg", &len);
  578. if (p != NULL) {
  579. *p++ = cpu_to_be32(bd->bi_memstart);
  580. *p = cpu_to_be32(bd->bi_memsize);
  581. }
  582. }
  583. #endif