134e026f9SYork Sun /* 29f9f0093SYork Sun * Copyright 2014-2015 Freescale Semiconductor, Inc. 334e026f9SYork Sun * 434e026f9SYork Sun * SPDX-License-Identifier: GPL-2.0+ 534e026f9SYork Sun */ 634e026f9SYork Sun 734e026f9SYork Sun #include <common.h> 834e026f9SYork Sun #include <asm/io.h> 934e026f9SYork Sun #include <fsl_ddr_sdram.h> 1034e026f9SYork Sun #include <asm/processor.h> 118340e7acSYork Sun #include <fsl_immap.h> 1234e026f9SYork Sun #include <fsl_ddr.h> 13*a46b1852SShengzhou Liu #include <fsl_errata.h> 1434e026f9SYork Sun 159f9f0093SYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 169f9f0093SYork Sun static void set_wait_for_bits_clear(void *ptr, u32 value, u32 bits) 179f9f0093SYork Sun { 189f9f0093SYork Sun int timeout = 1000; 199f9f0093SYork Sun 209f9f0093SYork Sun ddr_out32(ptr, value); 219f9f0093SYork Sun 229f9f0093SYork Sun while (ddr_in32(ptr) & bits) { 239f9f0093SYork Sun udelay(100); 249f9f0093SYork Sun timeout--; 259f9f0093SYork Sun } 269f9f0093SYork Sun if (timeout <= 0) 279f9f0093SYork Sun puts("Error: A007865 wait for clear timeout.\n"); 289f9f0093SYork Sun } 299f9f0093SYork Sun #endif /* CONFIG_SYS_FSL_ERRATUM_A008511 */ 309f9f0093SYork Sun 3134e026f9SYork Sun #if (CONFIG_CHIP_SELECTS_PER_CTRL > 4) 3234e026f9SYork Sun #error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL 3334e026f9SYork Sun #endif 3434e026f9SYork Sun 3534e026f9SYork Sun /* 3634e026f9SYork Sun * regs has the to-be-set values for DDR controller registers 3734e026f9SYork Sun * ctrl_num is the DDR controller number 3834e026f9SYork Sun * step: 0 goes through the initialization in one pass 3934e026f9SYork Sun * 1 sets registers and returns before enabling controller 4034e026f9SYork Sun * 2 resumes from step 1 and continues to initialize 4134e026f9SYork Sun * Dividing the initialization to two steps to deassert DDR reset signal 4234e026f9SYork Sun * to comply with JEDEC specs for RDIMMs. 4334e026f9SYork Sun */ 4434e026f9SYork Sun void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, 4534e026f9SYork Sun unsigned int ctrl_num, int step) 4634e026f9SYork Sun { 4734e026f9SYork Sun unsigned int i, bus_width; 4834e026f9SYork Sun struct ccsr_ddr __iomem *ddr; 4934e026f9SYork Sun u32 temp_sdram_cfg; 5034e026f9SYork Sun u32 total_gb_size_per_controller; 5134e026f9SYork Sun int timeout; 5249fd1f3fSYork Sun #if defined(CONFIG_SYS_FSL_ERRATUM_A008336) || \ 5349fd1f3fSYork Sun defined(CONFIG_SYS_FSL_ERRATUM_A008514) 549955b4abSYork Sun u32 *eddrtqcr1; 559955b4abSYork Sun #endif 569f9f0093SYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 579f9f0093SYork Sun u32 temp32, mr6; 587cc07998SYork Sun u32 vref_seq1[3] = {0x80, 0x96, 0x16}; /* for range 1 */ 597cc07998SYork Sun u32 vref_seq2[3] = {0xc0, 0xf0, 0x70}; /* for range 2 */ 607cc07998SYork Sun u32 *vref_seq = vref_seq1; 619f9f0093SYork Sun #endif 624516ff81SYork Sun #ifdef CONFIG_FSL_DDR_BIST 634516ff81SYork Sun u32 mtcr, err_detect, err_sbe; 644516ff81SYork Sun u32 cs0_bnds, cs1_bnds, cs2_bnds, cs3_bnds, cs0_config; 654516ff81SYork Sun #endif 664516ff81SYork Sun #ifdef CONFIG_FSL_DDR_BIST 674516ff81SYork Sun char buffer[CONFIG_SYS_CBSIZE]; 684516ff81SYork Sun #endif 6934e026f9SYork Sun 7034e026f9SYork Sun switch (ctrl_num) { 7134e026f9SYork Sun case 0: 7234e026f9SYork Sun ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; 7349fd1f3fSYork Sun #if defined(CONFIG_SYS_FSL_ERRATUM_A008336) || \ 7449fd1f3fSYork Sun defined(CONFIG_SYS_FSL_ERRATUM_A008514) 759955b4abSYork Sun eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR_ADDR + 0x800; 769955b4abSYork Sun #endif 7734e026f9SYork Sun break; 7834e026f9SYork Sun #if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 1) 7934e026f9SYork Sun case 1: 8034e026f9SYork Sun ddr = (void *)CONFIG_SYS_FSL_DDR2_ADDR; 8149fd1f3fSYork Sun #if defined(CONFIG_SYS_FSL_ERRATUM_A008336) || \ 8249fd1f3fSYork Sun defined(CONFIG_SYS_FSL_ERRATUM_A008514) 839955b4abSYork Sun eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR2_ADDR + 0x800; 849955b4abSYork Sun #endif 8534e026f9SYork Sun break; 8634e026f9SYork Sun #endif 8734e026f9SYork Sun #if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 2) 8834e026f9SYork Sun case 2: 8934e026f9SYork Sun ddr = (void *)CONFIG_SYS_FSL_DDR3_ADDR; 9049fd1f3fSYork Sun #if defined(CONFIG_SYS_FSL_ERRATUM_A008336) || \ 9149fd1f3fSYork Sun defined(CONFIG_SYS_FSL_ERRATUM_A008514) 929955b4abSYork Sun eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR3_ADDR + 0x800; 939955b4abSYork Sun #endif 9434e026f9SYork Sun break; 9534e026f9SYork Sun #endif 9634e026f9SYork Sun #if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 3) 9734e026f9SYork Sun case 3: 9834e026f9SYork Sun ddr = (void *)CONFIG_SYS_FSL_DDR4_ADDR; 9949fd1f3fSYork Sun #if defined(CONFIG_SYS_FSL_ERRATUM_A008336) || \ 10049fd1f3fSYork Sun defined(CONFIG_SYS_FSL_ERRATUM_A008514) 1019955b4abSYork Sun eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR4_ADDR + 0x800; 1029955b4abSYork Sun #endif 10334e026f9SYork Sun break; 10434e026f9SYork Sun #endif 10534e026f9SYork Sun default: 10634e026f9SYork Sun printf("%s unexpected ctrl_num = %u\n", __func__, ctrl_num); 10734e026f9SYork Sun return; 10834e026f9SYork Sun } 10934e026f9SYork Sun 11034e026f9SYork Sun if (step == 2) 11134e026f9SYork Sun goto step2; 11234e026f9SYork Sun 1139955b4abSYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008336 11406b53010SPrabhakar Kushwaha #if defined(CONFIG_LS2080A) || defined(CONFIG_LS2085A) 1159955b4abSYork Sun /* A008336 only applies to general DDR controllers */ 1169955b4abSYork Sun if ((ctrl_num == 0) || (ctrl_num == 1)) 1179955b4abSYork Sun #endif 1189955b4abSYork Sun ddr_out32(eddrtqcr1, 0x63b30002); 1199955b4abSYork Sun #endif 12049fd1f3fSYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008514 12106b53010SPrabhakar Kushwaha #if defined(CONFIG_LS2080A) || defined(CONFIG_LS2085A) 12249fd1f3fSYork Sun /* A008514 only applies to DP-DDR controler */ 12349fd1f3fSYork Sun if (ctrl_num == 2) 12449fd1f3fSYork Sun #endif 12549fd1f3fSYork Sun ddr_out32(eddrtqcr1, 0x63b20002); 12649fd1f3fSYork Sun #endif 12734e026f9SYork Sun if (regs->ddr_eor) 12834e026f9SYork Sun ddr_out32(&ddr->eor, regs->ddr_eor); 12934e026f9SYork Sun 13034e026f9SYork Sun ddr_out32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl); 13134e026f9SYork Sun 13234e026f9SYork Sun for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { 13334e026f9SYork Sun if (i == 0) { 13434e026f9SYork Sun ddr_out32(&ddr->cs0_bnds, regs->cs[i].bnds); 13534e026f9SYork Sun ddr_out32(&ddr->cs0_config, regs->cs[i].config); 13634e026f9SYork Sun ddr_out32(&ddr->cs0_config_2, regs->cs[i].config_2); 13734e026f9SYork Sun 13834e026f9SYork Sun } else if (i == 1) { 13934e026f9SYork Sun ddr_out32(&ddr->cs1_bnds, regs->cs[i].bnds); 14034e026f9SYork Sun ddr_out32(&ddr->cs1_config, regs->cs[i].config); 14134e026f9SYork Sun ddr_out32(&ddr->cs1_config_2, regs->cs[i].config_2); 14234e026f9SYork Sun 14334e026f9SYork Sun } else if (i == 2) { 14434e026f9SYork Sun ddr_out32(&ddr->cs2_bnds, regs->cs[i].bnds); 14534e026f9SYork Sun ddr_out32(&ddr->cs2_config, regs->cs[i].config); 14634e026f9SYork Sun ddr_out32(&ddr->cs2_config_2, regs->cs[i].config_2); 14734e026f9SYork Sun 14834e026f9SYork Sun } else if (i == 3) { 14934e026f9SYork Sun ddr_out32(&ddr->cs3_bnds, regs->cs[i].bnds); 15034e026f9SYork Sun ddr_out32(&ddr->cs3_config, regs->cs[i].config); 15134e026f9SYork Sun ddr_out32(&ddr->cs3_config_2, regs->cs[i].config_2); 15234e026f9SYork Sun } 15334e026f9SYork Sun } 15434e026f9SYork Sun 15534e026f9SYork Sun ddr_out32(&ddr->timing_cfg_3, regs->timing_cfg_3); 15634e026f9SYork Sun ddr_out32(&ddr->timing_cfg_0, regs->timing_cfg_0); 15734e026f9SYork Sun ddr_out32(&ddr->timing_cfg_1, regs->timing_cfg_1); 15834e026f9SYork Sun ddr_out32(&ddr->timing_cfg_2, regs->timing_cfg_2); 15934e026f9SYork Sun ddr_out32(&ddr->timing_cfg_4, regs->timing_cfg_4); 16034e026f9SYork Sun ddr_out32(&ddr->timing_cfg_5, regs->timing_cfg_5); 16134e026f9SYork Sun ddr_out32(&ddr->timing_cfg_6, regs->timing_cfg_6); 16234e026f9SYork Sun ddr_out32(&ddr->timing_cfg_7, regs->timing_cfg_7); 16334e026f9SYork Sun ddr_out32(&ddr->timing_cfg_8, regs->timing_cfg_8); 16434e026f9SYork Sun ddr_out32(&ddr->timing_cfg_9, regs->timing_cfg_9); 16534e026f9SYork Sun ddr_out32(&ddr->ddr_zq_cntl, regs->ddr_zq_cntl); 16634e026f9SYork Sun ddr_out32(&ddr->dq_map_0, regs->dq_map_0); 16734e026f9SYork Sun ddr_out32(&ddr->dq_map_1, regs->dq_map_1); 16834e026f9SYork Sun ddr_out32(&ddr->dq_map_2, regs->dq_map_2); 16934e026f9SYork Sun ddr_out32(&ddr->dq_map_3, regs->dq_map_3); 17034e026f9SYork Sun ddr_out32(&ddr->sdram_cfg_3, regs->ddr_sdram_cfg_3); 17134e026f9SYork Sun ddr_out32(&ddr->sdram_mode, regs->ddr_sdram_mode); 17234e026f9SYork Sun ddr_out32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2); 17334e026f9SYork Sun ddr_out32(&ddr->sdram_mode_3, regs->ddr_sdram_mode_3); 17434e026f9SYork Sun ddr_out32(&ddr->sdram_mode_4, regs->ddr_sdram_mode_4); 17534e026f9SYork Sun ddr_out32(&ddr->sdram_mode_5, regs->ddr_sdram_mode_5); 17634e026f9SYork Sun ddr_out32(&ddr->sdram_mode_6, regs->ddr_sdram_mode_6); 17734e026f9SYork Sun ddr_out32(&ddr->sdram_mode_7, regs->ddr_sdram_mode_7); 17834e026f9SYork Sun ddr_out32(&ddr->sdram_mode_8, regs->ddr_sdram_mode_8); 17934e026f9SYork Sun ddr_out32(&ddr->sdram_mode_9, regs->ddr_sdram_mode_9); 18034e026f9SYork Sun ddr_out32(&ddr->sdram_mode_10, regs->ddr_sdram_mode_10); 18134e026f9SYork Sun ddr_out32(&ddr->sdram_mode_11, regs->ddr_sdram_mode_11); 18234e026f9SYork Sun ddr_out32(&ddr->sdram_mode_12, regs->ddr_sdram_mode_12); 18334e026f9SYork Sun ddr_out32(&ddr->sdram_mode_13, regs->ddr_sdram_mode_13); 18434e026f9SYork Sun ddr_out32(&ddr->sdram_mode_14, regs->ddr_sdram_mode_14); 18534e026f9SYork Sun ddr_out32(&ddr->sdram_mode_15, regs->ddr_sdram_mode_15); 18634e026f9SYork Sun ddr_out32(&ddr->sdram_mode_16, regs->ddr_sdram_mode_16); 18734e026f9SYork Sun ddr_out32(&ddr->sdram_md_cntl, regs->ddr_sdram_md_cntl); 18834e026f9SYork Sun ddr_out32(&ddr->sdram_interval, regs->ddr_sdram_interval); 18934e026f9SYork Sun ddr_out32(&ddr->sdram_data_init, regs->ddr_data_init); 19034e026f9SYork Sun ddr_out32(&ddr->ddr_wrlvl_cntl, regs->ddr_wrlvl_cntl); 19134e026f9SYork Sun #ifndef CONFIG_SYS_FSL_DDR_EMU 19234e026f9SYork Sun /* 19334e026f9SYork Sun * Skip these two registers if running on emulator 19434e026f9SYork Sun * because emulator doesn't have skew between bytes. 19534e026f9SYork Sun */ 19634e026f9SYork Sun 19734e026f9SYork Sun if (regs->ddr_wrlvl_cntl_2) 19834e026f9SYork Sun ddr_out32(&ddr->ddr_wrlvl_cntl_2, regs->ddr_wrlvl_cntl_2); 19934e026f9SYork Sun if (regs->ddr_wrlvl_cntl_3) 20034e026f9SYork Sun ddr_out32(&ddr->ddr_wrlvl_cntl_3, regs->ddr_wrlvl_cntl_3); 20134e026f9SYork Sun #endif 20234e026f9SYork Sun 20334e026f9SYork Sun ddr_out32(&ddr->ddr_sr_cntr, regs->ddr_sr_cntr); 20434e026f9SYork Sun ddr_out32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1); 20534e026f9SYork Sun ddr_out32(&ddr->ddr_sdram_rcw_2, regs->ddr_sdram_rcw_2); 20634e026f9SYork Sun ddr_out32(&ddr->ddr_sdram_rcw_3, regs->ddr_sdram_rcw_3); 20734e026f9SYork Sun ddr_out32(&ddr->ddr_sdram_rcw_4, regs->ddr_sdram_rcw_4); 20834e026f9SYork Sun ddr_out32(&ddr->ddr_sdram_rcw_5, regs->ddr_sdram_rcw_5); 20934e026f9SYork Sun ddr_out32(&ddr->ddr_sdram_rcw_6, regs->ddr_sdram_rcw_6); 21034e026f9SYork Sun ddr_out32(&ddr->ddr_cdr1, regs->ddr_cdr1); 211a7787b78STang Yuantian #ifdef CONFIG_DEEP_SLEEP 212a7787b78STang Yuantian if (is_warm_boot()) { 213a7787b78STang Yuantian ddr_out32(&ddr->sdram_cfg_2, 214a7787b78STang Yuantian regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT); 215a7787b78STang Yuantian ddr_out32(&ddr->init_addr, CONFIG_SYS_SDRAM_BASE); 216a7787b78STang Yuantian ddr_out32(&ddr->init_ext_addr, DDR_INIT_ADDR_EXT_UIA); 217a7787b78STang Yuantian 218a7787b78STang Yuantian /* DRAM VRef will not be trained */ 219a7787b78STang Yuantian ddr_out32(&ddr->ddr_cdr2, 220a7787b78STang Yuantian regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN); 221a7787b78STang Yuantian } else 222a7787b78STang Yuantian #endif 223a7787b78STang Yuantian { 224a7787b78STang Yuantian ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); 225a7787b78STang Yuantian ddr_out32(&ddr->init_addr, regs->ddr_init_addr); 226a7787b78STang Yuantian ddr_out32(&ddr->init_ext_addr, regs->ddr_init_ext_addr); 22734e026f9SYork Sun ddr_out32(&ddr->ddr_cdr2, regs->ddr_cdr2); 228a7787b78STang Yuantian } 22934e026f9SYork Sun ddr_out32(&ddr->err_disable, regs->err_disable); 23034e026f9SYork Sun ddr_out32(&ddr->err_int_en, regs->err_int_en); 23134e026f9SYork Sun for (i = 0; i < 32; i++) { 23234e026f9SYork Sun if (regs->debug[i]) { 23334e026f9SYork Sun debug("Write to debug_%d as %08x\n", 23434e026f9SYork Sun i+1, regs->debug[i]); 23534e026f9SYork Sun ddr_out32(&ddr->debug[i], regs->debug[i]); 23634e026f9SYork Sun } 23734e026f9SYork Sun } 238dda3b610SYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008378 239dda3b610SYork Sun /* Erratum applies when accumulated ECC is used, or DBI is enabled */ 240dda3b610SYork Sun #define IS_ACC_ECC_EN(v) ((v) & 0x4) 241dda3b610SYork Sun #define IS_DBI(v) ((((v) >> 12) & 0x3) == 0x2) 242*a46b1852SShengzhou Liu if (has_erratum_a008378()) { 243dda3b610SYork Sun if (IS_ACC_ECC_EN(regs->ddr_sdram_cfg) || 244dda3b610SYork Sun IS_DBI(regs->ddr_sdram_cfg_3)) 245*a46b1852SShengzhou Liu ddr_setbits32(&ddr->debug[28], 0x9 << 20); 246*a46b1852SShengzhou Liu } 247dda3b610SYork Sun #endif 24834e026f9SYork Sun 2499f9f0093SYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 2509f9f0093SYork Sun /* Part 1 of 2 */ 2519f9f0093SYork Sun /* This erraum only applies to verion 5.2.0 */ 2529f9f0093SYork Sun if (fsl_ddr_get_version(ctrl_num) == 0x50200) { 2539f9f0093SYork Sun /* Disable DRAM VRef training */ 2549f9f0093SYork Sun ddr_out32(&ddr->ddr_cdr2, 2559f9f0093SYork Sun regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN); 2569f9f0093SYork Sun /* Disable deskew */ 2579f9f0093SYork Sun ddr_out32(&ddr->debug[28], 0x400); 2589f9f0093SYork Sun /* Disable D_INIT */ 2599f9f0093SYork Sun ddr_out32(&ddr->sdram_cfg_2, 2609f9f0093SYork Sun regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT); 2619f9f0093SYork Sun ddr_out32(&ddr->debug[25], 0x9000); 2629f9f0093SYork Sun } 2639f9f0093SYork Sun #endif 26434e026f9SYork Sun /* 26534e026f9SYork Sun * For RDIMMs, JEDEC spec requires clocks to be stable before reset is 26634e026f9SYork Sun * deasserted. Clocks start when any chip select is enabled and clock 26734e026f9SYork Sun * control register is set. Because all DDR components are connected to 26834e026f9SYork Sun * one reset signal, this needs to be done in two steps. Step 1 is to 26934e026f9SYork Sun * get the clocks started. Step 2 resumes after reset signal is 27034e026f9SYork Sun * deasserted. 27134e026f9SYork Sun */ 27234e026f9SYork Sun if (step == 1) { 27334e026f9SYork Sun udelay(200); 27434e026f9SYork Sun return; 27534e026f9SYork Sun } 27634e026f9SYork Sun 27734e026f9SYork Sun step2: 27834e026f9SYork Sun /* Set, but do not enable the memory */ 27934e026f9SYork Sun temp_sdram_cfg = regs->ddr_sdram_cfg; 28034e026f9SYork Sun temp_sdram_cfg &= ~(SDRAM_CFG_MEM_EN); 28134e026f9SYork Sun ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg); 28234e026f9SYork Sun 28334e026f9SYork Sun /* 28434e026f9SYork Sun * 500 painful micro-seconds must elapse between 28534e026f9SYork Sun * the DDR clock setup and the DDR config enable. 28634e026f9SYork Sun * DDR2 need 200 us, and DDR3 need 500 us from spec, 28734e026f9SYork Sun * we choose the max, that is 500 us for all of case. 28834e026f9SYork Sun */ 28934e026f9SYork Sun udelay(500); 2908340e7acSYork Sun mb(); 2918340e7acSYork Sun isb(); 29234e026f9SYork Sun 293a7787b78STang Yuantian #ifdef CONFIG_DEEP_SLEEP 294a7787b78STang Yuantian if (is_warm_boot()) { 295a7787b78STang Yuantian /* enter self-refresh */ 296a7787b78STang Yuantian temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2); 297a7787b78STang Yuantian temp_sdram_cfg |= SDRAM_CFG2_FRC_SR; 298a7787b78STang Yuantian ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg); 299a7787b78STang Yuantian /* do board specific memory setup */ 300a7787b78STang Yuantian board_mem_sleep_setup(); 301a7787b78STang Yuantian 302a7787b78STang Yuantian temp_sdram_cfg = (ddr_in32(&ddr->sdram_cfg) | SDRAM_CFG_BI); 303a7787b78STang Yuantian } else 304a7787b78STang Yuantian #endif 30534e026f9SYork Sun temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI; 306a7787b78STang Yuantian /* Let the controller go */ 30734e026f9SYork Sun ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN); 3088340e7acSYork Sun mb(); 3098340e7acSYork Sun isb(); 31034e026f9SYork Sun 3119f9f0093SYork Sun #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 3129f9f0093SYork Sun /* Part 2 of 2 */ 3139f9f0093SYork Sun /* This erraum only applies to verion 5.2.0 */ 3149f9f0093SYork Sun if (fsl_ddr_get_version(ctrl_num) == 0x50200) { 3159f9f0093SYork Sun /* Wait for idle */ 3167cc07998SYork Sun timeout = 40; 3179f9f0093SYork Sun while (!(ddr_in32(&ddr->debug[1]) & 0x2) && 3189f9f0093SYork Sun (timeout > 0)) { 3197cc07998SYork Sun udelay(1000); 3209f9f0093SYork Sun timeout--; 3219f9f0093SYork Sun } 3229f9f0093SYork Sun if (timeout <= 0) { 3239f9f0093SYork Sun printf("Controler %d timeout, debug_2 = %x\n", 3249f9f0093SYork Sun ctrl_num, ddr_in32(&ddr->debug[1])); 3259f9f0093SYork Sun } 3267cc07998SYork Sun 3277cc07998SYork Sun /* The vref setting sequence is different for range 2 */ 3287cc07998SYork Sun if (regs->ddr_cdr2 & DDR_CDR2_VREF_RANGE_2) 3297cc07998SYork Sun vref_seq = vref_seq2; 3307cc07998SYork Sun 3319f9f0093SYork Sun /* Set VREF */ 3329f9f0093SYork Sun for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { 3339f9f0093SYork Sun if (!(regs->cs[i].config & SDRAM_CS_CONFIG_EN)) 3349f9f0093SYork Sun continue; 3359f9f0093SYork Sun 3369f9f0093SYork Sun mr6 = (regs->ddr_sdram_mode_10 >> 16) | 3379f9f0093SYork Sun MD_CNTL_MD_EN | 3389f9f0093SYork Sun MD_CNTL_CS_SEL(i) | 3399f9f0093SYork Sun MD_CNTL_MD_SEL(6) | 3409f9f0093SYork Sun 0x00200000; 3417cc07998SYork Sun temp32 = mr6 | vref_seq[0]; 3429f9f0093SYork Sun set_wait_for_bits_clear(&ddr->sdram_md_cntl, 3439f9f0093SYork Sun temp32, MD_CNTL_MD_EN); 3449f9f0093SYork Sun udelay(1); 3459f9f0093SYork Sun debug("MR6 = 0x%08x\n", temp32); 3467cc07998SYork Sun temp32 = mr6 | vref_seq[1]; 3479f9f0093SYork Sun set_wait_for_bits_clear(&ddr->sdram_md_cntl, 3489f9f0093SYork Sun temp32, MD_CNTL_MD_EN); 3499f9f0093SYork Sun udelay(1); 3509f9f0093SYork Sun debug("MR6 = 0x%08x\n", temp32); 3517cc07998SYork Sun temp32 = mr6 | vref_seq[2]; 3529f9f0093SYork Sun set_wait_for_bits_clear(&ddr->sdram_md_cntl, 3539f9f0093SYork Sun temp32, MD_CNTL_MD_EN); 3549f9f0093SYork Sun udelay(1); 3559f9f0093SYork Sun debug("MR6 = 0x%08x\n", temp32); 3569f9f0093SYork Sun } 3579f9f0093SYork Sun ddr_out32(&ddr->sdram_md_cntl, 0); 3589f9f0093SYork Sun ddr_out32(&ddr->debug[28], 0); /* Enable deskew */ 3599f9f0093SYork Sun ddr_out32(&ddr->debug[1], 0x400); /* restart deskew */ 3609f9f0093SYork Sun /* wait for idle */ 3617cc07998SYork Sun timeout = 40; 3629f9f0093SYork Sun while (!(ddr_in32(&ddr->debug[1]) & 0x2) && 3639f9f0093SYork Sun (timeout > 0)) { 3647cc07998SYork Sun udelay(1000); 3659f9f0093SYork Sun timeout--; 3669f9f0093SYork Sun } 3679f9f0093SYork Sun if (timeout <= 0) { 3689f9f0093SYork Sun printf("Controler %d timeout, debug_2 = %x\n", 3699f9f0093SYork Sun ctrl_num, ddr_in32(&ddr->debug[1])); 3709f9f0093SYork Sun } 3719f9f0093SYork Sun /* Restore D_INIT */ 3729f9f0093SYork Sun ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); 3739f9f0093SYork Sun } 3749f9f0093SYork Sun #endif /* CONFIG_SYS_FSL_ERRATUM_A008511 */ 3759f9f0093SYork Sun 37634e026f9SYork Sun total_gb_size_per_controller = 0; 37734e026f9SYork Sun for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { 37834e026f9SYork Sun if (!(regs->cs[i].config & 0x80000000)) 37934e026f9SYork Sun continue; 38034e026f9SYork Sun total_gb_size_per_controller += 1 << ( 38134e026f9SYork Sun ((regs->cs[i].config >> 14) & 0x3) + 2 + 38234e026f9SYork Sun ((regs->cs[i].config >> 8) & 0x7) + 12 + 38334e026f9SYork Sun ((regs->cs[i].config >> 4) & 0x3) + 0 + 38434e026f9SYork Sun ((regs->cs[i].config >> 0) & 0x7) + 8 + 38534e026f9SYork Sun 3 - ((regs->ddr_sdram_cfg >> 19) & 0x3) - 38634e026f9SYork Sun 26); /* minus 26 (count of 64M) */ 38734e026f9SYork Sun } 38834e026f9SYork Sun if (fsl_ddr_get_intl3r() & 0x80000000) /* 3-way interleaving */ 38934e026f9SYork Sun total_gb_size_per_controller *= 3; 39034e026f9SYork Sun else if (regs->cs[0].config & 0x20000000) /* 2-way interleaving */ 39134e026f9SYork Sun total_gb_size_per_controller <<= 1; 39234e026f9SYork Sun /* 39334e026f9SYork Sun * total memory / bus width = transactions needed 39434e026f9SYork Sun * transactions needed / data rate = seconds 39534e026f9SYork Sun * to add plenty of buffer, double the time 39634e026f9SYork Sun * For example, 2GB on 666MT/s 64-bit bus takes about 402ms 39734e026f9SYork Sun * Let's wait for 800ms 39834e026f9SYork Sun */ 399f80d6472SYork Sun bus_width = 3 - ((ddr_in32(&ddr->sdram_cfg) & SDRAM_CFG_DBW_MASK) 40034e026f9SYork Sun >> SDRAM_CFG_DBW_SHIFT); 40134e026f9SYork Sun timeout = ((total_gb_size_per_controller << (6 - bus_width)) * 100 / 40203e664d8SYork Sun (get_ddr_freq(ctrl_num) >> 20)) << 2; 40334e026f9SYork Sun total_gb_size_per_controller >>= 4; /* shift down to gb size */ 40434e026f9SYork Sun debug("total %d GB\n", total_gb_size_per_controller); 40534e026f9SYork Sun debug("Need to wait up to %d * 10ms\n", timeout); 40634e026f9SYork Sun 40734e026f9SYork Sun /* Poll DDR_SDRAM_CFG_2[D_INIT] bit until auto-data init is done. */ 40834e026f9SYork Sun while ((ddr_in32(&ddr->sdram_cfg_2) & SDRAM_CFG2_D_INIT) && 40934e026f9SYork Sun (timeout >= 0)) { 41034e026f9SYork Sun udelay(10000); /* throttle polling rate */ 41134e026f9SYork Sun timeout--; 41234e026f9SYork Sun } 41334e026f9SYork Sun 41434e026f9SYork Sun if (timeout <= 0) 41534e026f9SYork Sun printf("Waiting for D_INIT timeout. Memory may not work.\n"); 416a7787b78STang Yuantian #ifdef CONFIG_DEEP_SLEEP 417a7787b78STang Yuantian if (is_warm_boot()) { 418a7787b78STang Yuantian /* exit self-refresh */ 419a7787b78STang Yuantian temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2); 420a7787b78STang Yuantian temp_sdram_cfg &= ~SDRAM_CFG2_FRC_SR; 421a7787b78STang Yuantian ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg); 422a7787b78STang Yuantian } 423a7787b78STang Yuantian #endif 4244516ff81SYork Sun 4254516ff81SYork Sun #ifdef CONFIG_FSL_DDR_BIST 4264516ff81SYork Sun #define BIST_PATTERN1 0xFFFFFFFF 4274516ff81SYork Sun #define BIST_PATTERN2 0x0 4284516ff81SYork Sun #define BIST_CR 0x80010000 4294516ff81SYork Sun #define BIST_CR_EN 0x80000000 4304516ff81SYork Sun #define BIST_CR_STAT 0x00000001 4314516ff81SYork Sun #define CTLR_INTLV_MASK 0x20000000 4324516ff81SYork Sun /* Perform build-in test on memory. Three-way interleaving is not yet 4334516ff81SYork Sun * supported by this code. */ 4344516ff81SYork Sun if (getenv_f("ddr_bist", buffer, CONFIG_SYS_CBSIZE) >= 0) { 4354516ff81SYork Sun puts("Running BIST test. This will take a while..."); 4364516ff81SYork Sun cs0_config = ddr_in32(&ddr->cs0_config); 437da305b9fSYork Sun cs0_bnds = ddr_in32(&ddr->cs0_bnds); 438da305b9fSYork Sun cs1_bnds = ddr_in32(&ddr->cs1_bnds); 439da305b9fSYork Sun cs2_bnds = ddr_in32(&ddr->cs2_bnds); 440da305b9fSYork Sun cs3_bnds = ddr_in32(&ddr->cs3_bnds); 4414516ff81SYork Sun if (cs0_config & CTLR_INTLV_MASK) { 4424516ff81SYork Sun /* set bnds to non-interleaving */ 443da305b9fSYork Sun ddr_out32(&ddr->cs0_bnds, (cs0_bnds & 0xfffefffe) >> 1); 444da305b9fSYork Sun ddr_out32(&ddr->cs1_bnds, (cs1_bnds & 0xfffefffe) >> 1); 445da305b9fSYork Sun ddr_out32(&ddr->cs2_bnds, (cs2_bnds & 0xfffefffe) >> 1); 446da305b9fSYork Sun ddr_out32(&ddr->cs3_bnds, (cs3_bnds & 0xfffefffe) >> 1); 4474516ff81SYork Sun } 4484516ff81SYork Sun ddr_out32(&ddr->mtp1, BIST_PATTERN1); 4494516ff81SYork Sun ddr_out32(&ddr->mtp2, BIST_PATTERN1); 4504516ff81SYork Sun ddr_out32(&ddr->mtp3, BIST_PATTERN2); 4514516ff81SYork Sun ddr_out32(&ddr->mtp4, BIST_PATTERN2); 4524516ff81SYork Sun ddr_out32(&ddr->mtp5, BIST_PATTERN1); 4534516ff81SYork Sun ddr_out32(&ddr->mtp6, BIST_PATTERN1); 4544516ff81SYork Sun ddr_out32(&ddr->mtp7, BIST_PATTERN2); 4554516ff81SYork Sun ddr_out32(&ddr->mtp8, BIST_PATTERN2); 4564516ff81SYork Sun ddr_out32(&ddr->mtp9, BIST_PATTERN1); 4574516ff81SYork Sun ddr_out32(&ddr->mtp10, BIST_PATTERN2); 4584516ff81SYork Sun mtcr = BIST_CR; 4594516ff81SYork Sun ddr_out32(&ddr->mtcr, mtcr); 4604516ff81SYork Sun timeout = 100; 4614516ff81SYork Sun while (timeout > 0 && (mtcr & BIST_CR_EN)) { 4624516ff81SYork Sun mdelay(1000); 4634516ff81SYork Sun timeout--; 4644516ff81SYork Sun mtcr = ddr_in32(&ddr->mtcr); 4654516ff81SYork Sun } 4664516ff81SYork Sun if (timeout <= 0) 4674516ff81SYork Sun puts("Timeout\n"); 4684516ff81SYork Sun else 4694516ff81SYork Sun puts("Done\n"); 4704516ff81SYork Sun err_detect = ddr_in32(&ddr->err_detect); 4714516ff81SYork Sun err_sbe = ddr_in32(&ddr->err_sbe); 4724516ff81SYork Sun if (mtcr & BIST_CR_STAT) { 4734516ff81SYork Sun printf("BIST test failed on controller %d.\n", 4744516ff81SYork Sun ctrl_num); 4754516ff81SYork Sun } 4764516ff81SYork Sun if (err_detect || (err_sbe & 0xffff)) { 4774516ff81SYork Sun printf("ECC error detected on controller %d.\n", 4784516ff81SYork Sun ctrl_num); 4794516ff81SYork Sun } 4804516ff81SYork Sun 4814516ff81SYork Sun if (cs0_config & CTLR_INTLV_MASK) { 4824516ff81SYork Sun /* restore bnds registers */ 483da305b9fSYork Sun ddr_out32(&ddr->cs0_bnds, cs0_bnds); 484da305b9fSYork Sun ddr_out32(&ddr->cs1_bnds, cs1_bnds); 485da305b9fSYork Sun ddr_out32(&ddr->cs2_bnds, cs2_bnds); 486da305b9fSYork Sun ddr_out32(&ddr->cs3_bnds, cs3_bnds); 4874516ff81SYork Sun } 4884516ff81SYork Sun } 4894516ff81SYork Sun #endif 49034e026f9SYork Sun } 491