diff options
Diffstat (limited to 'drivers/ddr')
| -rw-r--r-- | drivers/ddr/fsl/fsl_ddr_gen4.c | 83 |
1 files changed, 47 insertions, 36 deletions
diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c index c2f8a8b..aaf7c02 100644 --- a/drivers/ddr/fsl/fsl_ddr_gen4.c +++ b/drivers/ddr/fsl/fsl_ddr_gen4.c @@ -238,7 +238,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 /* Part 1 of 2 */ - /* This erraum only applies to verion 5.2.0 */ if (fsl_ddr_get_version(ctrl_num) == 0x50200) { /* Disable DRAM VRef training */ ddr_out32(&ddr->ddr_cdr2, @@ -247,13 +246,25 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, temp32 = ddr_in32(&ddr->debug[28]); temp32 |= DDR_TX_BD_DIS; ddr_out32(&ddr->debug[28], temp32); - /* Disable D_INIT */ - ddr_out32(&ddr->sdram_cfg_2, - regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT); ddr_out32(&ddr->debug[25], 0x9000); + } else if (fsl_ddr_get_version(ctrl_num) == 0x50201) { + /* Output enable forced off */ + ddr_out32(&ddr->debug[37], 1 << 31); + /* Enable Vref training */ + ddr_out32(&ddr->ddr_cdr2, + regs->ddr_cdr2 | DDR_CDR2_VREF_TRAIN_EN); + } else { + debug("Erratum A008511 doesn't apply.\n"); } #endif +#if defined(CONFIG_SYS_FSL_ERRATUM_A009803) || \ + defined(CONFIG_SYS_FSL_ERRATUM_A008511) + /* Disable D_INIT */ + ddr_out32(&ddr->sdram_cfg_2, + regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT); +#endif + #ifdef CONFIG_SYS_FSL_ERRATUM_A009801 temp32 = ddr_in32(&ddr->debug[25]); temp32 &= ~DDR_CAS_TO_PRE_SUB_MASK; @@ -331,21 +342,21 @@ step2: #if defined(CONFIG_SYS_FSL_ERRATUM_A008511) || \ defined(CONFIG_SYS_FSL_ERRATUM_A009803) /* Part 2 of 2 */ - /* This erraum only applies to verion 5.2.0 */ - if (fsl_ddr_get_version(ctrl_num) == 0x50200) { - /* Wait for idle */ - timeout = 40; - while (!(ddr_in32(&ddr->debug[1]) & 0x2) && - (timeout > 0)) { - udelay(1000); - timeout--; - } - if (timeout <= 0) { - printf("Controler %d timeout, debug_2 = %x\n", - ctrl_num, ddr_in32(&ddr->debug[1])); - } + timeout = 40; + /* Wait for idle. D_INIT needs to be cleared earlier, or timeout */ + while (!(ddr_in32(&ddr->debug[1]) & 0x2) && + (timeout > 0)) { + udelay(1000); + timeout--; + } + if (timeout <= 0) { + printf("Controler %d timeout, debug_2 = %x\n", + ctrl_num, ddr_in32(&ddr->debug[1])); + } #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 + /* This erraum only applies to verion 5.2.0 */ + if (fsl_ddr_get_version(ctrl_num) == 0x50200) { /* The vref setting sequence is different for range 2 */ if (regs->ddr_cdr2 & DDR_CDR2_VREF_RANGE_2) vref_seq = vref_seq2; @@ -392,32 +403,32 @@ step2: printf("Controler %d timeout, debug_2 = %x\n", ctrl_num, ddr_in32(&ddr->debug[1])); } - /* Restore D_INIT */ - ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); + } #endif /* CONFIG_SYS_FSL_ERRATUM_A008511 */ #ifdef CONFIG_SYS_FSL_ERRATUM_A009803 - if (regs->ddr_sdram_cfg_2 & SDRAM_CFG2_AP_EN) { - /* if it's RDIMM */ - if (regs->ddr_sdram_cfg & SDRAM_CFG_RD_EN) { - for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { - if (!(regs->cs[i].config & SDRAM_CS_CONFIG_EN)) - continue; - set_wait_for_bits_clear(&ddr->sdram_md_cntl, - MD_CNTL_MD_EN | - MD_CNTL_CS_SEL(i) | - 0x070000ed, - MD_CNTL_MD_EN); - udelay(1); - } + if (regs->ddr_sdram_cfg_2 & SDRAM_CFG2_AP_EN) { + /* if it's RDIMM */ + if (regs->ddr_sdram_cfg & SDRAM_CFG_RD_EN) { + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + if (!(regs->cs[i].config & SDRAM_CS_CONFIG_EN)) + continue; + set_wait_for_bits_clear(&ddr->sdram_md_cntl, + MD_CNTL_MD_EN | + MD_CNTL_CS_SEL(i) | + 0x070000ed, + MD_CNTL_MD_EN); + udelay(1); } - - ddr_out32(&ddr->err_disable, - regs->err_disable & ~DDR_ERR_DISABLE_APED); } -#endif + + ddr_out32(&ddr->err_disable, + regs->err_disable & ~DDR_ERR_DISABLE_APED); } #endif + /* Restore D_INIT */ + ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2); +#endif total_gb_size_per_controller = 0; for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { |