diff options
Diffstat (limited to 'drivers/ddr/fsl/fsl_ddr_gen4.c')
| -rw-r--r-- | drivers/ddr/fsl/fsl_ddr_gen4.c | 67 |
1 files changed, 17 insertions, 50 deletions
diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c index 042af09..dadcb3a 100644 --- a/drivers/ddr/fsl/fsl_ddr_gen4.c +++ b/drivers/ddr/fsl/fsl_ddr_gen4.c @@ -47,13 +47,9 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, { unsigned int i, bus_width; struct ccsr_ddr __iomem *ddr; - u32 temp_sdram_cfg; + u32 temp32; u32 total_gb_size_per_controller; int timeout; -#if defined(CONFIG_SYS_FSL_ERRATUM_A008511) || \ - defined(CONFIG_SYS_FSL_ERRATUM_A009801) - u32 temp32; -#endif #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 u32 mr6; @@ -61,11 +57,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, u32 vref_seq2[3] = {0xc0, 0xf0, 0x70}; /* for range 2 */ u32 *vref_seq = vref_seq1; #endif -#if defined(CONFIG_SYS_FSL_ERRATUM_A009942) | \ - defined(CONFIG_SYS_FSL_ERRATUM_A010165) - ulong ddr_freq; - u32 tmp; -#endif #ifdef CONFIG_FSL_DDR_BIST u32 mtcr, err_detect, err_sbe; u32 cs0_bnds, cs1_bnds, cs2_bnds, cs3_bnds, cs0_config; @@ -73,7 +64,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, #ifdef CONFIG_FSL_DDR_BIST char buffer[CONFIG_SYS_CBSIZE]; #endif - switch (ctrl_num) { case 0: ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR; @@ -230,16 +220,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, ddr_out32(&ddr->debug[i], regs->debug[i]); } } -#ifdef CONFIG_SYS_FSL_ERRATUM_A008378 - /* Erratum applies when accumulated ECC is used, or DBI is enabled */ -#define IS_ACC_ECC_EN(v) ((v) & 0x4) -#define IS_DBI(v) ((((v) >> 12) & 0x3) == 0x2) - if (has_erratum_a008378()) { - if (IS_ACC_ECC_EN(regs->ddr_sdram_cfg) || - IS_DBI(regs->ddr_sdram_cfg_3)) - ddr_setbits32(&ddr->debug[28], 0x9 << 20); - } -#endif #ifdef CONFIG_SYS_FSL_ERRATUM_A008511 /* Part 1 of 2 */ @@ -277,24 +257,11 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, ddr_out32(&ddr->debug[25], temp32); #endif -#ifdef CONFIG_SYS_FSL_ERRATUM_A009942 - ddr_freq = get_ddr_freq(ctrl_num) / 1000000; - tmp = ddr_in32(&ddr->debug[28]); - if (ddr_freq <= 1333) - ddr_out32(&ddr->debug[28], tmp | 0x0080006a); - else if (ddr_freq <= 1600) - ddr_out32(&ddr->debug[28], tmp | 0x0070006f); - else if (ddr_freq <= 1867) - ddr_out32(&ddr->debug[28], tmp | 0x00700076); - else if (ddr_freq <= 2133) - ddr_out32(&ddr->debug[28], tmp | 0x0060007b); -#endif - #ifdef CONFIG_SYS_FSL_ERRATUM_A010165 - ddr_freq = get_ddr_freq(ctrl_num) / 1000000; - if ((ddr_freq > 1900) && (ddr_freq < 2300)) { - tmp = ddr_in32(&ddr->debug[28]); - ddr_out32(&ddr->debug[28], tmp | 0x000a0000); + temp32 = get_ddr_freq(ctrl_num) / 1000000; + if ((temp32 > 1900) && (temp32 < 2300)) { + temp32 = ddr_in32(&ddr->debug[28]); + ddr_out32(&ddr->debug[28], temp32 | 0x000a0000); } #endif /* @@ -312,9 +279,9 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, step2: /* Set, but do not enable the memory */ - temp_sdram_cfg = regs->ddr_sdram_cfg; - temp_sdram_cfg &= ~(SDRAM_CFG_MEM_EN); - ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg); + temp32 = regs->ddr_sdram_cfg; + temp32 &= ~(SDRAM_CFG_MEM_EN); + ddr_out32(&ddr->sdram_cfg, temp32); /* * 500 painful micro-seconds must elapse between @@ -329,18 +296,18 @@ step2: #ifdef CONFIG_DEEP_SLEEP if (is_warm_boot()) { /* enter self-refresh */ - temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2); - temp_sdram_cfg |= SDRAM_CFG2_FRC_SR; - ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg); + temp32 = ddr_in32(&ddr->sdram_cfg_2); + temp32 |= SDRAM_CFG2_FRC_SR; + ddr_out32(&ddr->sdram_cfg_2, temp32); /* do board specific memory setup */ board_mem_sleep_setup(); - temp_sdram_cfg = (ddr_in32(&ddr->sdram_cfg) | SDRAM_CFG_BI); + temp32 = (ddr_in32(&ddr->sdram_cfg) | SDRAM_CFG_BI); } else #endif - temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI; + temp32 = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI; /* Let the controller go */ - ddr_out32(&ddr->sdram_cfg, temp_sdram_cfg | SDRAM_CFG_MEM_EN); + ddr_out32(&ddr->sdram_cfg, temp32 | SDRAM_CFG_MEM_EN); mb(); isb(); @@ -483,9 +450,9 @@ step2: #ifdef CONFIG_DEEP_SLEEP if (is_warm_boot()) { /* exit self-refresh */ - temp_sdram_cfg = ddr_in32(&ddr->sdram_cfg_2); - temp_sdram_cfg &= ~SDRAM_CFG2_FRC_SR; - ddr_out32(&ddr->sdram_cfg_2, temp_sdram_cfg); + temp32 = ddr_in32(&ddr->sdram_cfg_2); + temp32 &= ~SDRAM_CFG2_FRC_SR; + ddr_out32(&ddr->sdram_cfg_2, temp32); } #endif |