diff options
| -rw-r--r-- | cpu/mpc8xxx/ddr/ctrl_regs.c | 12 | ||||
| -rw-r--r-- | include/asm-ppc/fsl_ddr_sdram.h | 4 |
2 files changed, 12 insertions, 4 deletions
diff --git a/cpu/mpc8xxx/ddr/ctrl_regs.c b/cpu/mpc8xxx/ddr/ctrl_regs.c index eae794c76f..292980d0b0 100644 --- a/cpu/mpc8xxx/ddr/ctrl_regs.c +++ b/cpu/mpc8xxx/ddr/ctrl_regs.c @@ -755,10 +755,9 @@ static void set_ddr_wrlvl_cntl(fsl_ddr_cfg_regs_t *ddr) } /* DDR Self Refresh Counter (DDR_SR_CNTR) */ -static void set_ddr_sr_cntr(fsl_ddr_cfg_regs_t *ddr) +static void set_ddr_sr_cntr(fsl_ddr_cfg_regs_t *ddr, unsigned int sr_it) { - unsigned int sr_it = 0; /* Self Refresh Idle Threshold */ - + /* Self Refresh Idle Threshold */ ddr->ddr_sr_cntr = (sr_it & 0xF) << 16; } @@ -861,6 +860,7 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts, unsigned int i; unsigned int cas_latency; unsigned int additive_latency; + unsigned int sr_it; memset(ddr, 0, sizeof(fsl_ddr_cfg_regs_t)); @@ -882,6 +882,10 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts, ? popts->additive_latency_override_value : common_dimm->additive_latency; + sr_it = (popts->auto_self_refresh_en) + ? popts->sr_it + : 0; + /* Chip Select Memory Bounds (CSn_BNDS) */ for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { phys_size_t sa = 0; @@ -1042,7 +1046,7 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts, set_ddr_wrlvl_cntl(ddr); set_ddr_pd_cntl(ddr); - set_ddr_sr_cntr(ddr); + set_ddr_sr_cntr(ddr, sr_it); set_ddr_sdram_rcw_1(ddr); set_ddr_sdram_rcw_2(ddr); diff --git a/include/asm-ppc/fsl_ddr_sdram.h b/include/asm-ppc/fsl_ddr_sdram.h index 0006c21a02..b213af35ef 100644 --- a/include/asm-ppc/fsl_ddr_sdram.h +++ b/include/asm-ppc/fsl_ddr_sdram.h @@ -146,6 +146,10 @@ typedef struct memctl_options_s { unsigned int bstopre; unsigned int tCKE_clock_pulse_width_ps; /* tCKE */ unsigned int tFAW_window_four_activates_ps; /* tFAW -- FOUR_ACT */ + + /* Automatic self refresh */ + unsigned int auto_self_refresh_en; + unsigned int sr_it; } memctl_options_t; extern phys_size_t fsl_ddr_sdram(void); |