summaryrefslogtreecommitdiff
path: root/cpu/mpc8xxx/ddr/ctrl_regs.c
diff options
context:
space:
mode:
Diffstat (limited to 'cpu/mpc8xxx/ddr/ctrl_regs.c')
-rw-r--r--cpu/mpc8xxx/ddr/ctrl_regs.c80
1 files changed, 66 insertions, 14 deletions
diff --git a/cpu/mpc8xxx/ddr/ctrl_regs.c b/cpu/mpc8xxx/ddr/ctrl_regs.c
index ca675512a..1783e927a 100644
--- a/cpu/mpc8xxx/ddr/ctrl_regs.c
+++ b/cpu/mpc8xxx/ddr/ctrl_regs.c
@@ -95,16 +95,10 @@ static void set_csn_config(int i, fsl_ddr_cfg_regs_t *ddr,
col_bits_cs_n = dimm_params[i/2].n_col_addr - 8;
}
- /* FIXME: intlv_en, intlv_ctl only on CS0_CONFIG */
- if (i != 0) {
- intlv_en = 0;
- intlv_ctl = 0;
- }
-
ddr->cs[i].config = (0
| ((cs_n_en & 0x1) << 31)
| ((intlv_en & 0x3) << 29)
- | ((intlv_en & 0xf) << 24)
+ | ((intlv_ctl & 0xf) << 24)
| ((ap_n_en & 0x1) << 23)
/* XXX: some implementation only have 1 bit starting at left */
@@ -117,6 +111,7 @@ static void set_csn_config(int i, fsl_ddr_cfg_regs_t *ddr,
| ((row_bits_cs_n & 0x7) << 8)
| ((col_bits_cs_n & 0x7) << 0)
);
+ debug("FSLDDR: cs[%d]_config = 0x%08x\n", i,ddr->cs[i].config);
}
/* Chip Select Configuration 2 (CSn_CONFIG_2) */
@@ -126,6 +121,7 @@ static void set_csn_config_2(int i, fsl_ddr_cfg_regs_t *ddr)
unsigned int pasr_cfg = 0; /* Partial array self refresh config */
ddr->cs[i].config_2 = ((pasr_cfg & 7) << 24);
+ debug("FSLDDR: cs[%d]_config_2 = 0x%08x\n", i, ddr->cs[i].config_2);
}
/* -3E = 667 CL5, -25 = CL6 800, -25E = CL5 800 */
@@ -196,6 +192,7 @@ static void set_timing_cfg_3(fsl_ddr_cfg_regs_t *ddr,
| ((ext_caslat & 0x1) << 12)
| ((cntl_adj & 0x7) << 0)
);
+ debug("FSLDDR: timing_cfg_3 = 0x%08x\n", ddr->timing_cfg_3);
}
/* DDR SDRAM Timing Configuration 1 (TIMING_CFG_1) */
@@ -263,6 +260,7 @@ static void set_timing_cfg_1(fsl_ddr_cfg_regs_t *ddr,
| ((acttoact_mclk & 0x07) << 4)
| ((wrtord_mclk & 0x07) << 0)
);
+ debug("FSLDDR: timing_cfg_1 = 0x%08x\n", ddr->timing_cfg_1);
}
/* DDR SDRAM Timing Configuration 2 (TIMING_CFG_2) */
@@ -319,6 +317,7 @@ static void set_timing_cfg_2(fsl_ddr_cfg_regs_t *ddr,
| ((cke_pls & 0x7) << 6)
| ((four_act & 0x1f) << 0)
);
+ debug("FSLDDR: timing_cfg_2 = 0x%08x\n", ddr->timing_cfg_2);
}
/* DDR SDRAM control configuration (DDR_SDRAM_CFG) */
@@ -385,6 +384,7 @@ static void set_ddr_sdram_cfg(fsl_ddr_cfg_regs_t *ddr,
| ((mem_halt & 0x1) << 1)
| ((bi & 0x1) << 0)
);
+ debug("FSLDDR: ddr_sdram_cfg = 0x%08x\n", ddr->ddr_sdram_cfg);
}
/* DDR SDRAM control configuration 2 (DDR_SDRAM_CFG_2) */
@@ -449,6 +449,7 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr,
| ((rcw_en & 0x1) << 2)
| ((md_en & 0x1) << 0)
);
+ debug("FSLDDR: ddr_sdram_cfg_2 = 0x%08x\n", ddr->ddr_sdram_cfg_2);
}
/* DDR SDRAM Mode configuration 2 (DDR_SDRAM_MODE_2) */
@@ -461,6 +462,7 @@ static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr)
| ((esdmode2 & 0xFFFF) << 16)
| ((esdmode3 & 0xFFFF) << 0)
);
+ debug("FSLDDR: ddr_sdram_mode_2 = 0x%08x\n", ddr->ddr_sdram_mode_2);
}
/* DDR SDRAM Interval Configuration (DDR_SDRAM_INTERVAL) */
@@ -480,6 +482,7 @@ static void set_ddr_sdram_interval(fsl_ddr_cfg_regs_t *ddr,
| ((refint & 0xFFFF) << 16)
| ((bstopre & 0x3FFF) << 0)
);
+ debug("FSLDDR: ddr_sdram_interval = 0x%08x\n", ddr->ddr_sdram_interval);
}
/* DDR SDRAM Mode configuration set (DDR_SDRAM_MODE) */
@@ -520,7 +523,7 @@ static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr,
unsigned int wr; /* Write Recovery */
unsigned int dll_res; /* DLL Reset */
unsigned int mode; /* Normal=0 or Test=1 */
- unsigned int caslat; /* CAS# latency */
+ unsigned int caslat = 0;/* CAS# latency */
/* BT: Burst Type (0=Sequential, 1=Interleaved) */
unsigned int bt;
unsigned int bl; /* BL: Burst Length */
@@ -572,7 +575,9 @@ static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr,
0x6, /* 2.5 clocks */
0x3 /* 3.0 clocks */
};
- caslat = mode_caslat_table[cas_latency - 1];
+ caslat = mode_caslat_table[cas_latency - 1];
+ } else {
+ printf("Warning: unknown cas_latency %d\n", cas_latency);
}
#elif defined(CONFIG_FSL_DDR2)
caslat = cas_latency;
@@ -611,6 +616,7 @@ static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr,
| ((esdmode & 0xFFFF) << 16)
| ((sdmode & 0xFFFF) << 0)
);
+ debug("FSLDDR: ddr_sdram_mode = 0x%08x\n", ddr->ddr_sdram_mode);
}
@@ -673,6 +679,7 @@ static void set_timing_cfg_4(fsl_ddr_cfg_regs_t *ddr)
| ((wwt & 0xf) << 16)
| (dll_lock & 0x3)
);
+ debug("FSLDDR: timing_cfg_4 = 0x%08x\n", ddr->timing_cfg_4);
}
/* DDR SDRAM Timing Configuration 5 (TIMING_CFG_5) */
@@ -689,6 +696,7 @@ static void set_timing_cfg_5(fsl_ddr_cfg_regs_t *ddr)
| ((wodt_on & 0xf) << 12)
| ((wodt_off & 0xf) << 8)
);
+ debug("FSLDDR: timing_cfg_5 = 0x%08x\n", ddr->timing_cfg_5);
}
/* DDR ZQ Calibration Control (DDR_ZQ_CNTL) */
@@ -872,8 +880,13 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts,
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
phys_size_t sa = 0;
phys_size_t ea = 0;
- if (popts->ba_intlv_ctl && i > 0) {
- /* Don't set up boundaries if bank interleaving */
+
+ if (popts->ba_intlv_ctl && (i > 0) &&
+ ((popts->ba_intlv_ctl & 0x60) != FSL_DDR_CS2_CS3 )) {
+ /* Don't set up boundaries for other CS
+ * other than CS0, if bank interleaving
+ * is enabled and not CS2+CS3 interleaved.
+ */
break;
}
@@ -892,7 +905,9 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts,
* on each controller is twice the amount present on
* each controller.
*/
- ea = (2 * common_dimm->total_mem >> dbw_cap_adj) - 1;
+ unsigned long long rank_density
+ = dimm_params[0].capacity;
+ ea = (2 * (rank_density >> dbw_cap_adj)) - 1;
}
else if (!popts->memctl_interleaving && popts->ba_intlv_ctl) {
/*
@@ -904,8 +919,44 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts,
* controller needs to be programmed into its
* respective CS0_BNDS.
*/
- sa = common_dimm->base_address;
- ea = sa + (common_dimm->total_mem >> dbw_cap_adj) - 1;
+ unsigned long long rank_density
+ = dimm_params[i/2].rank_density;
+ switch (popts->ba_intlv_ctl & FSL_DDR_CS0_CS1_CS2_CS3) {
+ case FSL_DDR_CS0_CS1_CS2_CS3:
+ /* CS0+CS1+CS2+CS3 interleaving, only CS0_CNDS
+ * needs to be set.
+ */
+ sa = common_dimm->base_address;
+ ea = sa + (4 * (rank_density >> dbw_cap_adj))-1;
+ break;
+ case FSL_DDR_CS0_CS1_AND_CS2_CS3:
+ /* CS0+CS1 and CS2+CS3 interleaving, CS0_CNDS
+ * and CS2_CNDS need to be set.
+ */
+ if (!(i&1)) {
+ sa = dimm_params[i/2].base_address;
+ ea = sa + (i * (rank_density >>
+ dbw_cap_adj)) - 1;
+ }
+ break;
+ case FSL_DDR_CS0_CS1:
+ /* CS0+CS1 interleaving, CS0_CNDS needs
+ * to be set
+ */
+ sa = common_dimm->base_address;
+ ea = sa + (2 * (rank_density >> dbw_cap_adj))-1;
+ break;
+ case FSL_DDR_CS2_CS3:
+ /* CS2+CS3 interleaving*/
+ if (i == 2) {
+ sa = dimm_params[i/2].base_address;
+ ea = sa + (2 * (rank_density >>
+ dbw_cap_adj)) - 1;
+ }
+ break;
+ default: /* No bank(chip-select) interleaving */
+ break;
+ }
}
else if (popts->memctl_interleaving && !popts->ba_intlv_ctl) {
/*
@@ -953,6 +1004,7 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts,
| ((ea & 0xFFF) << 0) /* ending address MSB */
);
+ debug("FSLDDR: cs[%d]_bnds = 0x%08x\n", i, ddr->cs[i].bnds);
set_csn_config(i, ddr, popts, dimm_params);
set_csn_config_2(i, ddr);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-23 03:59:54 +0000