diff options
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/common_timing_params.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c | 7 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c | 5 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/fsl_ddr_dimm_params.h | 1 |
5 files changed, 17 insertions, 1 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/common_timing_params.h b/arch/powerpc/cpu/mpc8xxx/ddr/common_timing_params.h index 17d8d9f74..76338d4e6 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/common_timing_params.h +++ b/arch/powerpc/cpu/mpc8xxx/ddr/common_timing_params.h @@ -28,6 +28,7 @@ typedef struct { unsigned int trc_ps; /* maximum = 254 ns + .75 ns = 254750 ps */ unsigned int refresh_rate_ps; + unsigned int extended_op_srt; unsigned int tis_ps; /* byte 32, spd->ca_setup */ unsigned int tih_ps; /* byte 33, spd->ca_hold */ diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c index d7333ba3d..dcfc48aa9 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c @@ -765,6 +765,7 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, /* DDR SDRAM Mode configuration 2 (DDR_SDRAM_MODE_2) */ static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr, const memctl_options_t *popts, + const common_timing_params_t *common_dimm, const unsigned int unq_mrs_en) { unsigned short esdmode2 = 0; /* Extended SDRAM mode 2 */ @@ -782,6 +783,10 @@ static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr, rtt_wr = popts->rtt_wr_override_value; else rtt_wr = popts->cs_local_opts[0].odt_rtt_wr; + + if (common_dimm->extended_op_srt) + srt = common_dimm->extended_op_srt; + esdmode2 = (0 | ((rtt_wr & 0x3) << 9) | ((srt & 0x1) << 7) @@ -1626,7 +1631,7 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts, set_ddr_sdram_cfg_2(ddr, popts, unq_mrs_en); set_ddr_sdram_mode(ddr, popts, common_dimm, cas_latency, additive_latency, unq_mrs_en); - set_ddr_sdram_mode_2(ddr, popts, unq_mrs_en); + set_ddr_sdram_mode_2(ddr, popts, common_dimm, unq_mrs_en); set_ddr_sdram_interval(ddr, popts, common_dimm); set_ddr_data_init(ddr); set_ddr_sdram_clk_cntl(ddr, popts); diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c index d82eb674d..4c8645da5 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c @@ -321,6 +321,10 @@ ddr_compute_dimm_parameters(const ddr3_spd_eeprom_t *spd, * = 3.9 us at ext temperature range */ pdimm->refresh_rate_ps = 7800000; + if ((spd->therm_ref_opt & 0x1) && !(spd->therm_ref_opt & 0x2)) { + pdimm->refresh_rate_ps = 3900000; + pdimm->extended_op_srt = 1; + } /* * min four active window delay time diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c b/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c index 3affcee7d..332fe25c4 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c @@ -92,6 +92,7 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params, unsigned int trrd_ps = 0; unsigned int trc_ps = 0; unsigned int refresh_rate_ps = 0; + unsigned int extended_op_srt = 1; unsigned int tis_ps = 0; unsigned int tih_ps = 0; unsigned int tds_ps = 0; @@ -166,6 +167,9 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params, tqhs_ps = max(tqhs_ps, dimm_params[i].tqhs_ps); refresh_rate_ps = max(refresh_rate_ps, dimm_params[i].refresh_rate_ps); + /* extended_op_srt is either 0 or 1, 0 having priority */ + extended_op_srt = min(extended_op_srt, + dimm_params[i].extended_op_srt); /* * Find maximum tdqsq_max_ps to find slowest. @@ -195,6 +199,7 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params, outpdimm->trrd_ps = trrd_ps; outpdimm->trc_ps = trc_ps; outpdimm->refresh_rate_ps = refresh_rate_ps; + outpdimm->extended_op_srt = extended_op_srt; outpdimm->tis_ps = tis_ps; outpdimm->tih_ps = tih_ps; outpdimm->tds_ps = tds_ps; diff --git a/arch/powerpc/include/asm/fsl_ddr_dimm_params.h b/arch/powerpc/include/asm/fsl_ddr_dimm_params.h index 2cad6e285..99a72bc6e 100644 --- a/arch/powerpc/include/asm/fsl_ddr_dimm_params.h +++ b/arch/powerpc/include/asm/fsl_ddr_dimm_params.h @@ -78,6 +78,7 @@ typedef struct dimm_params_s { unsigned int trc_ps; /* maximum = 254 ns + .75 ns = 254750 ps */ unsigned int refresh_rate_ps; + unsigned int extended_op_srt; /* DDR3 doesn't need these as below */ unsigned int tis_ps; /* byte 32, spd->ca_setup */ |