cpu.c 16 KB

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  1. /*
  2. * Copyright 2004,2007-2011 Freescale Semiconductor, Inc.
  3. * (C) Copyright 2002, 2003 Motorola Inc.
  4. * Xianghua Xiao (X.Xiao@motorola.com)
  5. *
  6. * (C) Copyright 2000
  7. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  8. *
  9. * SPDX-License-Identifier: GPL-2.0+
  10. */
  11. #include <config.h>
  12. #include <common.h>
  13. #include <watchdog.h>
  14. #include <command.h>
  15. #include <fsl_esdhc.h>
  16. #include <asm/cache.h>
  17. #include <asm/io.h>
  18. #include <asm/mmu.h>
  19. #include <fsl_ifc.h>
  20. #include <asm/fsl_law.h>
  21. #include <asm/fsl_lbc.h>
  22. #include <post.h>
  23. #include <asm/processor.h>
  24. #include <fsl_ddr_sdram.h>
  25. #include <asm/ppc.h>
  26. DECLARE_GLOBAL_DATA_PTR;
  27. /*
  28. * Default board reset function
  29. */
  30. static void
  31. __board_reset(void)
  32. {
  33. /* Do nothing */
  34. }
  35. void board_reset(void) __attribute__((weak, alias("__board_reset")));
  36. int checkcpu (void)
  37. {
  38. sys_info_t sysinfo;
  39. uint pvr, svr;
  40. uint ver;
  41. uint major, minor;
  42. struct cpu_type *cpu;
  43. char buf1[32], buf2[32];
  44. #if defined(CONFIG_DDR_CLK_FREQ) || defined(CONFIG_FSL_CORENET)
  45. ccsr_gur_t __iomem *gur =
  46. (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  47. #endif
  48. /*
  49. * Cornet platforms use ddr sync bit in RCW to indicate sync vs async
  50. * mode. Previous platform use ddr ratio to do the same. This
  51. * information is only for display here.
  52. */
  53. #ifdef CONFIG_FSL_CORENET
  54. #ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
  55. u32 ddr_sync = 0; /* only async mode is supported */
  56. #else
  57. u32 ddr_sync = ((gur->rcwsr[5]) & FSL_CORENET_RCWSR5_DDR_SYNC)
  58. >> FSL_CORENET_RCWSR5_DDR_SYNC_SHIFT;
  59. #endif /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */
  60. #else /* CONFIG_FSL_CORENET */
  61. #ifdef CONFIG_DDR_CLK_FREQ
  62. u32 ddr_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_DDR_RATIO)
  63. >> MPC85xx_PORPLLSR_DDR_RATIO_SHIFT;
  64. #else
  65. u32 ddr_ratio = 0;
  66. #endif /* CONFIG_DDR_CLK_FREQ */
  67. #endif /* CONFIG_FSL_CORENET */
  68. unsigned int i, core, nr_cores = cpu_numcores();
  69. u32 mask = cpu_mask();
  70. #ifdef CONFIG_HETROGENOUS_CLUSTERS
  71. unsigned int j, dsp_core, dsp_numcores = cpu_num_dspcores();
  72. u32 dsp_mask = cpu_dsp_mask();
  73. #endif
  74. svr = get_svr();
  75. major = SVR_MAJ(svr);
  76. minor = SVR_MIN(svr);
  77. #if defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2) && defined(CONFIG_E6500)
  78. if (SVR_SOC_VER(svr) == SVR_T4080) {
  79. ccsr_rcpm_t *rcpm =
  80. (void __iomem *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR);
  81. setbits_be32(&gur->devdisr2, FSL_CORENET_DEVDISR2_DTSEC1_6 ||
  82. FSL_CORENET_DEVDISR2_DTSEC1_9);
  83. setbits_be32(&gur->devdisr3, FSL_CORENET_DEVDISR3_PCIE3);
  84. setbits_be32(&gur->devdisr5, FSL_CORENET_DEVDISR5_DDR3);
  85. /* It needs SW to disable core4~7 as HW design sake on T4080 */
  86. for (i = 4; i < 8; i++)
  87. cpu_disable(i);
  88. /* request core4~7 into PH20 state, prior to entering PCL10
  89. * state, all cores in cluster should be placed in PH20 state.
  90. */
  91. setbits_be32(&rcpm->pcph20setr, 0xf0);
  92. /* put the 2nd cluster into PCL10 state */
  93. setbits_be32(&rcpm->clpcl10setr, 1 << 1);
  94. }
  95. #endif
  96. if (cpu_numcores() > 1) {
  97. #ifndef CONFIG_MP
  98. puts("Unicore software on multiprocessor system!!\n"
  99. "To enable mutlticore build define CONFIG_MP\n");
  100. #endif
  101. volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR);
  102. printf("CPU%d: ", pic->whoami);
  103. } else {
  104. puts("CPU: ");
  105. }
  106. cpu = gd->arch.cpu;
  107. puts(cpu->name);
  108. if (IS_E_PROCESSOR(svr))
  109. puts("E");
  110. printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr);
  111. pvr = get_pvr();
  112. ver = PVR_VER(pvr);
  113. major = PVR_MAJ(pvr);
  114. minor = PVR_MIN(pvr);
  115. printf("Core: ");
  116. switch(ver) {
  117. case PVR_VER_E500_V1:
  118. case PVR_VER_E500_V2:
  119. puts("e500");
  120. break;
  121. case PVR_VER_E500MC:
  122. puts("e500mc");
  123. break;
  124. case PVR_VER_E5500:
  125. puts("e5500");
  126. break;
  127. case PVR_VER_E6500:
  128. puts("e6500");
  129. break;
  130. default:
  131. puts("Unknown");
  132. break;
  133. }
  134. printf(", Version: %d.%d, (0x%08x)\n", major, minor, pvr);
  135. if (nr_cores > CONFIG_MAX_CPUS) {
  136. panic("\nUnexpected number of cores: %d, max is %d\n",
  137. nr_cores, CONFIG_MAX_CPUS);
  138. }
  139. get_sys_info(&sysinfo);
  140. #ifdef CONFIG_SYS_FSL_SINGLE_SOURCE_CLK
  141. if (sysinfo.diff_sysclk == 1)
  142. puts("Single Source Clock Configuration\n");
  143. #endif
  144. puts("Clock Configuration:");
  145. for_each_cpu(i, core, nr_cores, mask) {
  146. if (!(i & 3))
  147. printf ("\n ");
  148. printf("CPU%d:%-4s MHz, ", core,
  149. strmhz(buf1, sysinfo.freq_processor[core]));
  150. }
  151. #ifdef CONFIG_HETROGENOUS_CLUSTERS
  152. for_each_cpu(j, dsp_core, dsp_numcores, dsp_mask) {
  153. if (!(j & 3))
  154. printf("\n ");
  155. printf("DSP CPU%d:%-4s MHz, ", j,
  156. strmhz(buf1, sysinfo.freq_processor_dsp[dsp_core]));
  157. }
  158. #endif
  159. printf("\n CCB:%-4s MHz,", strmhz(buf1, sysinfo.freq_systembus));
  160. printf("\n");
  161. #ifdef CONFIG_FSL_CORENET
  162. if (ddr_sync == 1) {
  163. printf(" DDR:%-4s MHz (%s MT/s data rate) "
  164. "(Synchronous), ",
  165. strmhz(buf1, sysinfo.freq_ddrbus/2),
  166. strmhz(buf2, sysinfo.freq_ddrbus));
  167. } else {
  168. printf(" DDR:%-4s MHz (%s MT/s data rate) "
  169. "(Asynchronous), ",
  170. strmhz(buf1, sysinfo.freq_ddrbus/2),
  171. strmhz(buf2, sysinfo.freq_ddrbus));
  172. }
  173. #else
  174. switch (ddr_ratio) {
  175. case 0x0:
  176. printf(" DDR:%-4s MHz (%s MT/s data rate), ",
  177. strmhz(buf1, sysinfo.freq_ddrbus/2),
  178. strmhz(buf2, sysinfo.freq_ddrbus));
  179. break;
  180. case 0x7:
  181. printf(" DDR:%-4s MHz (%s MT/s data rate) "
  182. "(Synchronous), ",
  183. strmhz(buf1, sysinfo.freq_ddrbus/2),
  184. strmhz(buf2, sysinfo.freq_ddrbus));
  185. break;
  186. default:
  187. printf(" DDR:%-4s MHz (%s MT/s data rate) "
  188. "(Asynchronous), ",
  189. strmhz(buf1, sysinfo.freq_ddrbus/2),
  190. strmhz(buf2, sysinfo.freq_ddrbus));
  191. break;
  192. }
  193. #endif
  194. #if defined(CONFIG_FSL_LBC)
  195. if (sysinfo.freq_localbus > LCRR_CLKDIV) {
  196. printf("LBC:%-4s MHz\n", strmhz(buf1, sysinfo.freq_localbus));
  197. } else {
  198. printf("LBC: unknown (LCRR[CLKDIV] = 0x%02lx)\n",
  199. sysinfo.freq_localbus);
  200. }
  201. #endif
  202. #if defined(CONFIG_FSL_IFC)
  203. printf("IFC:%-4s MHz\n", strmhz(buf1, sysinfo.freq_localbus));
  204. #endif
  205. #ifdef CONFIG_CPM2
  206. printf("CPM: %s MHz\n", strmhz(buf1, sysinfo.freq_systembus));
  207. #endif
  208. #ifdef CONFIG_QE
  209. printf(" QE:%-4s MHz\n", strmhz(buf1, sysinfo.freq_qe));
  210. #endif
  211. #if defined(CONFIG_SYS_CPRI)
  212. printf(" ");
  213. printf("CPRI:%-4s MHz", strmhz(buf1, sysinfo.freq_cpri));
  214. #endif
  215. #if defined(CONFIG_SYS_MAPLE)
  216. printf("\n ");
  217. printf("MAPLE:%-4s MHz, ", strmhz(buf1, sysinfo.freq_maple));
  218. printf("MAPLE-ULB:%-4s MHz, ", strmhz(buf1, sysinfo.freq_maple_ulb));
  219. printf("MAPLE-eTVPE:%-4s MHz\n",
  220. strmhz(buf1, sysinfo.freq_maple_etvpe));
  221. #endif
  222. #ifdef CONFIG_SYS_DPAA_FMAN
  223. for (i = 0; i < CONFIG_SYS_NUM_FMAN; i++) {
  224. printf(" FMAN%d: %s MHz\n", i + 1,
  225. strmhz(buf1, sysinfo.freq_fman[i]));
  226. }
  227. #endif
  228. #ifdef CONFIG_SYS_DPAA_QBMAN
  229. printf(" QMAN: %s MHz\n", strmhz(buf1, sysinfo.freq_qman));
  230. #endif
  231. #ifdef CONFIG_SYS_DPAA_PME
  232. printf(" PME: %s MHz\n", strmhz(buf1, sysinfo.freq_pme));
  233. #endif
  234. puts("L1: D-cache 32 KiB enabled\n I-cache 32 KiB enabled\n");
  235. #ifdef CONFIG_FSL_CORENET
  236. /* Display the RCW, so that no one gets confused as to what RCW
  237. * we're actually using for this boot.
  238. */
  239. puts("Reset Configuration Word (RCW):");
  240. for (i = 0; i < ARRAY_SIZE(gur->rcwsr); i++) {
  241. u32 rcw = in_be32(&gur->rcwsr[i]);
  242. if ((i % 4) == 0)
  243. printf("\n %08x:", i * 4);
  244. printf(" %08x", rcw);
  245. }
  246. puts("\n");
  247. #endif
  248. return 0;
  249. }
  250. /* ------------------------------------------------------------------------- */
  251. int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  252. {
  253. /* Everything after the first generation of PQ3 parts has RSTCR */
  254. #if defined(CONFIG_ARCH_MPC8540) || defined(CONFIG_ARCH_MPC8541) || \
  255. defined(CONFIG_ARCH_MPC8555) || defined(CONFIG_ARCH_MPC8560)
  256. unsigned long val, msr;
  257. /*
  258. * Initiate hard reset in debug control register DBCR0
  259. * Make sure MSR[DE] = 1. This only resets the core.
  260. */
  261. msr = mfmsr ();
  262. msr |= MSR_DE;
  263. mtmsr (msr);
  264. val = mfspr(DBCR0);
  265. val |= 0x70000000;
  266. mtspr(DBCR0,val);
  267. #else
  268. volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  269. /* Attempt board-specific reset */
  270. board_reset();
  271. /* Next try asserting HRESET_REQ */
  272. out_be32(&gur->rstcr, 0x2);
  273. udelay(100);
  274. #endif
  275. return 1;
  276. }
  277. /*
  278. * Get timebase clock frequency
  279. */
  280. #ifndef CONFIG_SYS_FSL_TBCLK_DIV
  281. #define CONFIG_SYS_FSL_TBCLK_DIV 8
  282. #endif
  283. __weak unsigned long get_tbclk (void)
  284. {
  285. unsigned long tbclk_div = CONFIG_SYS_FSL_TBCLK_DIV;
  286. return (gd->bus_clk + (tbclk_div >> 1)) / tbclk_div;
  287. }
  288. #if defined(CONFIG_WATCHDOG)
  289. #define WATCHDOG_MASK (TCR_WP(63) | TCR_WRC(3) | TCR_WIE)
  290. void
  291. init_85xx_watchdog(void)
  292. {
  293. mtspr(SPRN_TCR, (mfspr(SPRN_TCR) & ~WATCHDOG_MASK) |
  294. TCR_WP(CONFIG_WATCHDOG_PRESC) | TCR_WRC(CONFIG_WATCHDOG_RC));
  295. }
  296. void
  297. reset_85xx_watchdog(void)
  298. {
  299. /*
  300. * Clear TSR(WIS) bit by writing 1
  301. */
  302. mtspr(SPRN_TSR, TSR_WIS);
  303. }
  304. void
  305. watchdog_reset(void)
  306. {
  307. int re_enable = disable_interrupts();
  308. reset_85xx_watchdog();
  309. if (re_enable)
  310. enable_interrupts();
  311. }
  312. #endif /* CONFIG_WATCHDOG */
  313. /*
  314. * Initializes on-chip MMC controllers.
  315. * to override, implement board_mmc_init()
  316. */
  317. int cpu_mmc_init(bd_t *bis)
  318. {
  319. #ifdef CONFIG_FSL_ESDHC
  320. return fsl_esdhc_mmc_init(bis);
  321. #else
  322. return 0;
  323. #endif
  324. }
  325. /*
  326. * Print out the state of various machine registers.
  327. * Currently prints out LAWs, BR0/OR0 for LBC, CSPR/CSOR/Timing
  328. * parameters for IFC and TLBs
  329. */
  330. void print_reginfo(void)
  331. {
  332. print_tlbcam();
  333. print_laws();
  334. #if defined(CONFIG_FSL_LBC)
  335. print_lbc_regs();
  336. #endif
  337. #ifdef CONFIG_FSL_IFC
  338. print_ifc_regs();
  339. #endif
  340. }
  341. /* Common ddr init for non-corenet fsl 85xx platforms */
  342. #ifndef CONFIG_FSL_CORENET
  343. #if (defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_SPL)) && \
  344. !defined(CONFIG_SYS_INIT_L2_ADDR)
  345. int dram_init(void)
  346. {
  347. #if defined(CONFIG_SPD_EEPROM) || defined(CONFIG_DDR_SPD) || \
  348. defined(CONFIG_ARCH_QEMU_E500)
  349. gd->ram_size = fsl_ddr_sdram_size();
  350. #else
  351. gd->ram_size = (phys_size_t)CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
  352. #endif
  353. return 0;
  354. }
  355. #else /* CONFIG_SYS_RAMBOOT */
  356. int dram_init(void)
  357. {
  358. phys_size_t dram_size = 0;
  359. #if defined(CONFIG_SYS_FSL_ERRATUM_DDR_MSYNC_IN)
  360. {
  361. ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  362. unsigned int x = 10;
  363. unsigned int i;
  364. /*
  365. * Work around to stabilize DDR DLL
  366. */
  367. out_be32(&gur->ddrdllcr, 0x81000000);
  368. asm("sync;isync;msync");
  369. udelay(200);
  370. while (in_be32(&gur->ddrdllcr) != 0x81000100) {
  371. setbits_be32(&gur->devdisr, 0x00010000);
  372. for (i = 0; i < x; i++)
  373. ;
  374. clrbits_be32(&gur->devdisr, 0x00010000);
  375. x++;
  376. }
  377. }
  378. #endif
  379. #if defined(CONFIG_SPD_EEPROM) || \
  380. defined(CONFIG_DDR_SPD) || \
  381. defined(CONFIG_SYS_DDR_RAW_TIMING)
  382. dram_size = fsl_ddr_sdram();
  383. #else
  384. dram_size = fixed_sdram();
  385. #endif
  386. dram_size = setup_ddr_tlbs(dram_size / 0x100000);
  387. dram_size *= 0x100000;
  388. #if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
  389. /*
  390. * Initialize and enable DDR ECC.
  391. */
  392. ddr_enable_ecc(dram_size);
  393. #endif
  394. #if defined(CONFIG_FSL_LBC)
  395. /* Some boards also have sdram on the lbc */
  396. lbc_sdram_init();
  397. #endif
  398. debug("DDR: ");
  399. gd->ram_size = dram_size;
  400. return 0;
  401. }
  402. #endif /* CONFIG_SYS_RAMBOOT */
  403. #endif
  404. #if CONFIG_POST & CONFIG_SYS_POST_MEMORY
  405. /* Board-specific functions defined in each board's ddr.c */
  406. void fsl_ddr_get_spd(generic_spd_eeprom_t *ctrl_dimms_spd,
  407. unsigned int ctrl_num, unsigned int dimm_slots_per_ctrl);
  408. void read_tlbcam_entry(int idx, u32 *valid, u32 *tsize, unsigned long *epn,
  409. phys_addr_t *rpn);
  410. unsigned int
  411. setup_ddr_tlbs_phys(phys_addr_t p_addr, unsigned int memsize_in_meg);
  412. void clear_ddr_tlbs_phys(phys_addr_t p_addr, unsigned int memsize_in_meg);
  413. static void dump_spd_ddr_reg(void)
  414. {
  415. int i, j, k, m;
  416. u8 *p_8;
  417. u32 *p_32;
  418. struct ccsr_ddr __iomem *ddr[CONFIG_SYS_NUM_DDR_CTLRS];
  419. generic_spd_eeprom_t
  420. spd[CONFIG_SYS_NUM_DDR_CTLRS][CONFIG_DIMM_SLOTS_PER_CTLR];
  421. for (i = 0; i < CONFIG_SYS_NUM_DDR_CTLRS; i++)
  422. fsl_ddr_get_spd(spd[i], i, CONFIG_DIMM_SLOTS_PER_CTLR);
  423. puts("SPD data of all dimms (zero value is omitted)...\n");
  424. puts("Byte (hex) ");
  425. k = 1;
  426. for (i = 0; i < CONFIG_SYS_NUM_DDR_CTLRS; i++) {
  427. for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++)
  428. printf("Dimm%d ", k++);
  429. }
  430. puts("\n");
  431. for (k = 0; k < sizeof(generic_spd_eeprom_t); k++) {
  432. m = 0;
  433. printf("%3d (0x%02x) ", k, k);
  434. for (i = 0; i < CONFIG_SYS_NUM_DDR_CTLRS; i++) {
  435. for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) {
  436. p_8 = (u8 *) &spd[i][j];
  437. if (p_8[k]) {
  438. printf("0x%02x ", p_8[k]);
  439. m++;
  440. } else
  441. puts(" ");
  442. }
  443. }
  444. if (m)
  445. puts("\n");
  446. else
  447. puts("\r");
  448. }
  449. for (i = 0; i < CONFIG_SYS_NUM_DDR_CTLRS; i++) {
  450. switch (i) {
  451. case 0:
  452. ddr[i] = (void *)CONFIG_SYS_FSL_DDR_ADDR;
  453. break;
  454. #if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 1)
  455. case 1:
  456. ddr[i] = (void *)CONFIG_SYS_FSL_DDR2_ADDR;
  457. break;
  458. #endif
  459. #if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 2)
  460. case 2:
  461. ddr[i] = (void *)CONFIG_SYS_FSL_DDR3_ADDR;
  462. break;
  463. #endif
  464. #if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 3)
  465. case 3:
  466. ddr[i] = (void *)CONFIG_SYS_FSL_DDR4_ADDR;
  467. break;
  468. #endif
  469. default:
  470. printf("%s unexpected controller number = %u\n",
  471. __func__, i);
  472. return;
  473. }
  474. }
  475. printf("DDR registers dump for all controllers "
  476. "(zero value is omitted)...\n");
  477. puts("Offset (hex) ");
  478. for (i = 0; i < CONFIG_SYS_NUM_DDR_CTLRS; i++)
  479. printf(" Base + 0x%04x", (u32)ddr[i] & 0xFFFF);
  480. puts("\n");
  481. for (k = 0; k < sizeof(struct ccsr_ddr)/4; k++) {
  482. m = 0;
  483. printf("%6d (0x%04x)", k * 4, k * 4);
  484. for (i = 0; i < CONFIG_SYS_NUM_DDR_CTLRS; i++) {
  485. p_32 = (u32 *) ddr[i];
  486. if (p_32[k]) {
  487. printf(" 0x%08x", p_32[k]);
  488. m++;
  489. } else
  490. puts(" ");
  491. }
  492. if (m)
  493. puts("\n");
  494. else
  495. puts("\r");
  496. }
  497. puts("\n");
  498. }
  499. /* invalid the TLBs for DDR and setup new ones to cover p_addr */
  500. static int reset_tlb(phys_addr_t p_addr, u32 size, phys_addr_t *phys_offset)
  501. {
  502. u32 vstart = CONFIG_SYS_DDR_SDRAM_BASE;
  503. unsigned long epn;
  504. u32 tsize, valid, ptr;
  505. int ddr_esel;
  506. clear_ddr_tlbs_phys(p_addr, size>>20);
  507. /* Setup new tlb to cover the physical address */
  508. setup_ddr_tlbs_phys(p_addr, size>>20);
  509. ptr = vstart;
  510. ddr_esel = find_tlb_idx((void *)ptr, 1);
  511. if (ddr_esel != -1) {
  512. read_tlbcam_entry(ddr_esel, &valid, &tsize, &epn, phys_offset);
  513. } else {
  514. printf("TLB error in function %s\n", __func__);
  515. return -1;
  516. }
  517. return 0;
  518. }
  519. /*
  520. * slide the testing window up to test another area
  521. * for 32_bit system, the maximum testable memory is limited to
  522. * CONFIG_MAX_MEM_MAPPED
  523. */
  524. int arch_memory_test_advance(u32 *vstart, u32 *size, phys_addr_t *phys_offset)
  525. {
  526. phys_addr_t test_cap, p_addr;
  527. phys_size_t p_size = min(gd->ram_size, CONFIG_MAX_MEM_MAPPED);
  528. #if !defined(CONFIG_PHYS_64BIT) || \
  529. !defined(CONFIG_SYS_INIT_RAM_ADDR_PHYS) || \
  530. (CONFIG_SYS_INIT_RAM_ADDR_PHYS < 0x100000000ull)
  531. test_cap = p_size;
  532. #else
  533. test_cap = gd->ram_size;
  534. #endif
  535. p_addr = (*vstart) + (*size) + (*phys_offset);
  536. if (p_addr < test_cap - 1) {
  537. p_size = min(test_cap - p_addr, CONFIG_MAX_MEM_MAPPED);
  538. if (reset_tlb(p_addr, p_size, phys_offset) == -1)
  539. return -1;
  540. *vstart = CONFIG_SYS_DDR_SDRAM_BASE;
  541. *size = (u32) p_size;
  542. printf("Testing 0x%08llx - 0x%08llx\n",
  543. (u64)(*vstart) + (*phys_offset),
  544. (u64)(*vstart) + (*phys_offset) + (*size) - 1);
  545. } else
  546. return 1;
  547. return 0;
  548. }
  549. /* initialization for testing area */
  550. int arch_memory_test_prepare(u32 *vstart, u32 *size, phys_addr_t *phys_offset)
  551. {
  552. phys_size_t p_size = min(gd->ram_size, CONFIG_MAX_MEM_MAPPED);
  553. *vstart = CONFIG_SYS_DDR_SDRAM_BASE;
  554. *size = (u32) p_size; /* CONFIG_MAX_MEM_MAPPED < 4G */
  555. *phys_offset = 0;
  556. #if !defined(CONFIG_PHYS_64BIT) || \
  557. !defined(CONFIG_SYS_INIT_RAM_ADDR_PHYS) || \
  558. (CONFIG_SYS_INIT_RAM_ADDR_PHYS < 0x100000000ull)
  559. if (gd->ram_size > CONFIG_MAX_MEM_MAPPED) {
  560. puts("Cannot test more than ");
  561. print_size(CONFIG_MAX_MEM_MAPPED,
  562. " without proper 36BIT support.\n");
  563. }
  564. #endif
  565. printf("Testing 0x%08llx - 0x%08llx\n",
  566. (u64)(*vstart) + (*phys_offset),
  567. (u64)(*vstart) + (*phys_offset) + (*size) - 1);
  568. return 0;
  569. }
  570. /* invalid TLBs for DDR and remap as normal after testing */
  571. int arch_memory_test_cleanup(u32 *vstart, u32 *size, phys_addr_t *phys_offset)
  572. {
  573. unsigned long epn;
  574. u32 tsize, valid, ptr;
  575. phys_addr_t rpn = 0;
  576. int ddr_esel;
  577. /* disable the TLBs for this testing */
  578. ptr = *vstart;
  579. while (ptr < (*vstart) + (*size)) {
  580. ddr_esel = find_tlb_idx((void *)ptr, 1);
  581. if (ddr_esel != -1) {
  582. read_tlbcam_entry(ddr_esel, &valid, &tsize, &epn, &rpn);
  583. disable_tlb(ddr_esel);
  584. }
  585. ptr += TSIZE_TO_BYTES(tsize);
  586. }
  587. puts("Remap DDR ");
  588. setup_ddr_tlbs(gd->ram_size>>20);
  589. puts("\n");
  590. return 0;
  591. }
  592. void arch_memory_failure_handle(void)
  593. {
  594. dump_spd_ddr_reg();
  595. }
  596. #endif