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-rw-r--r--cpu/mpc8xxx/ddr/ctrl_regs.c74
-rw-r--r--cpu/mpc8xxx/ddr/ddr.h17
-rw-r--r--cpu/mpc8xxx/ddr/ddr1_2_dimm_params.h84
-rw-r--r--cpu/mpc8xxx/ddr/main.c45
-rw-r--r--cpu/mpc8xxx/ddr/options.c84
5 files changed, 193 insertions, 111 deletions
diff --git a/cpu/mpc8xxx/ddr/ctrl_regs.c b/cpu/mpc8xxx/ddr/ctrl_regs.c
index e6c2a5c..1783e92 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) */
@@ -613,6 +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);
}
@@ -675,6 +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) */
@@ -691,6 +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) */
@@ -874,8 +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;
}
@@ -894,7 +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) {
/*
@@ -906,8 +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) {
/*
@@ -955,6 +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);
}
diff --git a/cpu/mpc8xxx/ddr/ddr.h b/cpu/mpc8xxx/ddr/ddr.h
index f5dc40a..9ffd548 100644
--- a/cpu/mpc8xxx/ddr/ddr.h
+++ b/cpu/mpc8xxx/ddr/ddr.h
@@ -10,8 +10,8 @@
#define FSL_DDR_MAIN_H
#include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_ddr_dimm_params.h>
-#include "ddr1_2_dimm_params.h"
#include "common_timing_params.h"
/*
@@ -31,17 +31,17 @@ compute_dimm_parameters(const generic_spd_eeprom_t *spd,
*
* All data structures have to be on the stack
*/
-#define CFG_NUM_DDR_CTLRS CONFIG_NUM_DDR_CONTROLLERS
-#define CFG_DIMM_SLOTS_PER_CTLR CONFIG_DIMM_SLOTS_PER_CTLR
+#define CONFIG_SYS_NUM_DDR_CTLRS CONFIG_NUM_DDR_CONTROLLERS
+#define CONFIG_SYS_DIMM_SLOTS_PER_CTLR CONFIG_DIMM_SLOTS_PER_CTLR
typedef struct {
generic_spd_eeprom_t
- spd_installed_dimms[CFG_NUM_DDR_CTLRS][CFG_DIMM_SLOTS_PER_CTLR];
+ spd_installed_dimms[CONFIG_SYS_NUM_DDR_CTLRS][CONFIG_SYS_DIMM_SLOTS_PER_CTLR];
struct dimm_params_s
- dimm_params[CFG_NUM_DDR_CTLRS][CFG_DIMM_SLOTS_PER_CTLR];
- memctl_options_t memctl_opts[CFG_NUM_DDR_CTLRS];
- common_timing_params_t common_timing_params[CFG_NUM_DDR_CTLRS];
- fsl_ddr_cfg_regs_t fsl_ddr_config_reg[CFG_NUM_DDR_CTLRS];
+ dimm_params[CONFIG_SYS_NUM_DDR_CTLRS][CONFIG_SYS_DIMM_SLOTS_PER_CTLR];
+ memctl_options_t memctl_opts[CONFIG_SYS_NUM_DDR_CTLRS];
+ common_timing_params_t common_timing_params[CONFIG_SYS_NUM_DDR_CTLRS];
+ fsl_ddr_cfg_regs_t fsl_ddr_config_reg[CONFIG_SYS_NUM_DDR_CTLRS];
} fsl_ddr_info_t;
/* Compute steps */
@@ -71,6 +71,7 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
unsigned int number_of_dimms);
extern unsigned int populate_memctl_options(int all_DIMMs_registered,
memctl_options_t *popts,
+ dimm_params_t *pdimm,
unsigned int ctrl_num);
extern unsigned int mclk_to_picos(unsigned int mclk);
diff --git a/cpu/mpc8xxx/ddr/ddr1_2_dimm_params.h b/cpu/mpc8xxx/ddr/ddr1_2_dimm_params.h
deleted file mode 100644
index c794eed..0000000
--- a/cpu/mpc8xxx/ddr/ddr1_2_dimm_params.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright 2008 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * Version 2 as published by the Free Software Foundation.
- */
-
-#ifndef DDR2_DIMM_PARAMS_H
-#define DDR2_DIMM_PARAMS_H
-
-/* Parameters for a DDR2 dimm computed from the SPD */
-typedef struct dimm_params_s {
-
- /* DIMM organization parameters */
- char mpart[19]; /* guaranteed null terminated */
-
- unsigned int n_ranks;
- unsigned long long rank_density;
- unsigned long long capacity;
- unsigned int data_width;
- unsigned int primary_sdram_width;
- unsigned int ec_sdram_width;
- unsigned int registered_dimm;
-
- /* SDRAM device parameters */
- unsigned int n_row_addr;
- unsigned int n_col_addr;
- unsigned int edc_config; /* 0 = none, 1 = parity, 2 = ECC */
- unsigned int n_banks_per_sdram_device;
- unsigned int burst_lengths_bitmask; /* BL=4 bit 2, BL=8 = bit 3 */
- unsigned int row_density;
-
- /* used in computing base address of DIMMs */
- unsigned long long base_address;
-
- /* DIMM timing parameters */
-
- /*
- * SDRAM clock periods
- * The range for these are 1000-10000 so a short should be sufficient
- */
- unsigned int tCKmin_X_ps;
- unsigned int tCKmin_X_minus_1_ps;
- unsigned int tCKmin_X_minus_2_ps;
- unsigned int tCKmax_ps;
-
- /* SPD-defined CAS latencies */
- unsigned int caslat_X;
- unsigned int caslat_X_minus_1;
- unsigned int caslat_X_minus_2;
-
- unsigned int caslat_lowest_derated; /* Derated CAS latency */
-
- /* basic timing parameters */
- unsigned int tRCD_ps;
- unsigned int tRP_ps;
- unsigned int tRAS_ps;
-
- unsigned int tWR_ps; /* maximum = 63750 ps */
- unsigned int tWTR_ps; /* maximum = 63750 ps */
- unsigned int tRFC_ps; /* max = 255 ns + 256 ns + .75 ns
- = 511750 ps */
-
- unsigned int tRRD_ps; /* maximum = 63750 ps */
- unsigned int tRC_ps; /* maximum = 254 ns + .75 ns = 254750 ps */
-
- unsigned int refresh_rate_ps;
-
- unsigned int tIS_ps; /* byte 32, spd->ca_setup */
- unsigned int tIH_ps; /* byte 33, spd->ca_hold */
- unsigned int tDS_ps; /* byte 34, spd->data_setup */
- unsigned int tDH_ps; /* byte 35, spd->data_hold */
- unsigned int tRTP_ps; /* byte 38, spd->trtp */
- unsigned int tDQSQ_max_ps; /* byte 44, spd->tdqsq */
- unsigned int tQHS_ps; /* byte 45, spd->tqhs */
-} dimm_params_t;
-
-extern unsigned int ddr_compute_dimm_parameters(
- const generic_spd_eeprom_t *spd,
- dimm_params_t *pdimm,
- unsigned int dimm_number);
-
-#endif
diff --git a/cpu/mpc8xxx/ddr/main.c b/cpu/mpc8xxx/ddr/main.c
index c340d56..21a16d9 100644
--- a/cpu/mpc8xxx/ddr/main.c
+++ b/cpu/mpc8xxx/ddr/main.c
@@ -164,6 +164,24 @@ int step_assign_addresses(fsl_ddr_info_t *pinfo,
}
if (j == 2) {
*memctl_interleaving = 1;
+
+ printf("\nMemory controller interleaving enabled: ");
+
+ switch (pinfo->memctl_opts[0].memctl_interleaving_mode) {
+ case FSL_DDR_CACHE_LINE_INTERLEAVING:
+ printf("Cache-line interleaving!\n");
+ break;
+ case FSL_DDR_PAGE_INTERLEAVING:
+ printf("Page interleaving!\n");
+ break;
+ case FSL_DDR_BANK_INTERLEAVING:
+ printf("Bank interleaving!\n");
+ break;
+ case FSL_DDR_SUPERBANK_INTERLEAVING:
+ printf("Super bank interleaving\n");
+ default:
+ break;
+ }
}
/* Check that all controllers are rank interleaving. */
@@ -175,10 +193,30 @@ int step_assign_addresses(fsl_ddr_info_t *pinfo,
}
if (j == 2) {
*rank_interleaving = 1;
+
+ printf("Bank(chip-select) interleaving enabled: ");
+
+ switch (pinfo->memctl_opts[0].ba_intlv_ctl &
+ FSL_DDR_CS0_CS1_CS2_CS3) {
+ case FSL_DDR_CS0_CS1_CS2_CS3:
+ printf("CS0+CS1+CS2+CS3\n");
+ break;
+ case FSL_DDR_CS0_CS1:
+ printf("CS0+CS1\n");
+ break;
+ case FSL_DDR_CS2_CS3:
+ printf("CS2+CS3\n");
+ break;
+ case FSL_DDR_CS0_CS1_AND_CS2_CS3:
+ printf("CS0+CS1 and CS2+CS3\n");
+ default:
+ break;
+ }
}
if (*memctl_interleaving) {
phys_addr_t addr;
+ phys_size_t total_mem_per_ctlr = 0;
/*
* If interleaving between memory controllers,
@@ -197,14 +235,18 @@ int step_assign_addresses(fsl_ddr_info_t *pinfo,
for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) {
addr = 0;
+ pinfo->common_timing_params[i].base_address =
+ (phys_addr_t)addr;
for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) {
unsigned long long cap
= pinfo->dimm_params[i][j].capacity;
pinfo->dimm_params[i][j].base_address = addr;
addr += (phys_addr_t)(cap >> dbw_cap_adj[i]);
+ total_mem_per_ctlr += cap >> dbw_cap_adj[i];
}
}
+ pinfo->common_timing_params[0].total_mem = total_mem_per_ctlr;
} else {
/*
* Simple linear assignment if memory
@@ -314,7 +356,8 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step)
*/
populate_memctl_options(
timing_params[i].all_DIMMs_registered,
- &pinfo->memctl_opts[i], i);
+ &pinfo->memctl_opts[i],
+ pinfo->dimm_params[i], i);
}
case STEP_ASSIGN_ADDRESSES:
diff --git a/cpu/mpc8xxx/ddr/options.c b/cpu/mpc8xxx/ddr/options.c
index 6c2b43c..714e88d 100644
--- a/cpu/mpc8xxx/ddr/options.c
+++ b/cpu/mpc8xxx/ddr/options.c
@@ -13,13 +13,16 @@
/* Board-specific functions defined in each board's ddr.c */
extern void fsl_ddr_board_options(memctl_options_t *popts,
+ dimm_params_t *pdimm,
unsigned int ctrl_num);
unsigned int populate_memctl_options(int all_DIMMs_registered,
memctl_options_t *popts,
+ dimm_params_t *pdimm,
unsigned int ctrl_num)
{
unsigned int i;
+ const char *p;
/* Chip select options. */
@@ -179,19 +182,88 @@ unsigned int populate_memctl_options(int all_DIMMs_registered,
#error "FIXME determine four activates for DDR3"
#endif
- /* ODT should only be used for DDR2 */
-
- /* FIXME? */
-
/*
- * Interleaving checks.
+ * Check interleaving configuration from environment.
+ * Please refer to doc/README.fsl-ddr for the detail.
*
* If memory controller interleaving is enabled, then the data
* bus widths must be programmed identically for the 2 memory
* controllers.
+ *
+ * XXX: Attempt to set both controllers to the same chip select
+ * interleaving mode. It will do a best effort to get the
+ * requested ranks interleaved together such that the result
+ * should be a subset of the requested configuration.
*/
+ if ((p = getenv("memctl_intlv_ctl")) != NULL) {
+ if (pdimm[0].n_ranks == 0) {
+ printf("There is no rank on CS0. Because only rank on \
+ CS0 and ranks chip-select interleaved with CS0\
+ are controller interleaved, force non memory \
+ controller interleaving\n");
+ popts->memctl_interleaving = 0;
+ } else {
+ popts->memctl_interleaving = 1;
+ if (strcmp(p, "cacheline") == 0)
+ popts->memctl_interleaving_mode =
+ FSL_DDR_CACHE_LINE_INTERLEAVING;
+ else if (strcmp(p, "page") == 0)
+ popts->memctl_interleaving_mode =
+ FSL_DDR_PAGE_INTERLEAVING;
+ else if (strcmp(p, "bank") == 0)
+ popts->memctl_interleaving_mode =
+ FSL_DDR_BANK_INTERLEAVING;
+ else if (strcmp(p, "superbank") == 0)
+ popts->memctl_interleaving_mode =
+ FSL_DDR_SUPERBANK_INTERLEAVING;
+ else
+ popts->memctl_interleaving_mode =
+ simple_strtoul(p, NULL, 0);
+ }
+ }
+
+ if( (p = getenv("ba_intlv_ctl")) != NULL) {
+ if (strcmp(p, "cs0_cs1") == 0)
+ popts->ba_intlv_ctl = FSL_DDR_CS0_CS1;
+ else if (strcmp(p, "cs2_cs3") == 0)
+ popts->ba_intlv_ctl = FSL_DDR_CS2_CS3;
+ else if (strcmp(p, "cs0_cs1_and_cs2_cs3") == 0)
+ popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_AND_CS2_CS3;
+ else if (strcmp(p, "cs0_cs1_cs2_cs3") == 0)
+ popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_CS2_CS3;
+ else
+ popts->ba_intlv_ctl = simple_strtoul(p, NULL, 0);
+
+ switch (popts->ba_intlv_ctl & FSL_DDR_CS0_CS1_CS2_CS3) {
+ case FSL_DDR_CS0_CS1_CS2_CS3:
+ case FSL_DDR_CS0_CS1:
+ if (pdimm[0].n_ranks != 2) {
+ popts->ba_intlv_ctl = 0;
+ printf("No enough bank(chip-select) for \
+ CS0+CS1, force non-interleaving!\n");
+ }
+ break;
+ case FSL_DDR_CS2_CS3:
+ if (pdimm[1].n_ranks !=2){
+ popts->ba_intlv_ctl = 0;
+ printf("No enough bank(CS) for CS2+CS3, \
+ force non-interleaving!\n");
+ }
+ break;
+ case FSL_DDR_CS0_CS1_AND_CS2_CS3:
+ if ((pdimm[0].n_ranks != 2)||(pdimm[1].n_ranks != 2)) {
+ popts->ba_intlv_ctl = 0;
+ printf("No enough bank(CS) for CS0+CS1 or \
+ CS2+CS3, force non-interleaving!\n");
+ }
+ break;
+ default:
+ popts->ba_intlv_ctl = 0;
+ break;
+ }
+ }
- fsl_ddr_board_options(popts, ctrl_num);
+ fsl_ddr_board_options(popts, pdimm, ctrl_num);
return 0;
}