aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--arch/powerpc/cpu/mpc8xxx/ddr/common_timing_params.h3
-rw-r--r--arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c81
-rw-r--r--arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c6
-rw-r--r--arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c18
-rw-r--r--arch/powerpc/include/asm/fsl_ddr_dimm_params.h3
-rw-r--r--include/ddr_spd.h14
6 files changed, 72 insertions, 53 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/common_timing_params.h b/arch/powerpc/cpu/mpc8xxx/ddr/common_timing_params.h
index 5aea517f2..06706ed78 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/common_timing_params.h
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/common_timing_params.h
@@ -48,6 +48,9 @@ typedef struct {
unsigned long long total_mem;
unsigned long long base_address;
+
+ /* DDR3 RDIMM */
+ unsigned char rcw[16]; /* Register Control Word 0-15 */
} common_timing_params_t;
#endif
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c
index ff0ddd189..b2962d26c 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c
@@ -448,6 +448,35 @@ static void set_timing_cfg_2(fsl_ddr_cfg_regs_t *ddr,
debug("FSLDDR: timing_cfg_2 = 0x%08x\n", ddr->timing_cfg_2);
}
+/* DDR SDRAM Register Control Word */
+static void set_ddr_sdram_rcw(fsl_ddr_cfg_regs_t *ddr,
+ const common_timing_params_t *common_dimm)
+{
+ if (common_dimm->all_DIMMs_registered
+ && !common_dimm->all_DIMMs_unbuffered) {
+ ddr->ddr_sdram_rcw_1 =
+ common_dimm->rcw[0] << 28 | \
+ common_dimm->rcw[1] << 24 | \
+ common_dimm->rcw[2] << 20 | \
+ common_dimm->rcw[3] << 16 | \
+ common_dimm->rcw[4] << 12 | \
+ common_dimm->rcw[5] << 8 | \
+ common_dimm->rcw[6] << 4 | \
+ common_dimm->rcw[7];
+ ddr->ddr_sdram_rcw_2 =
+ common_dimm->rcw[8] << 28 | \
+ common_dimm->rcw[9] << 24 | \
+ common_dimm->rcw[10] << 20 | \
+ common_dimm->rcw[11] << 16 | \
+ common_dimm->rcw[12] << 12 | \
+ common_dimm->rcw[13] << 8 | \
+ common_dimm->rcw[14] << 4 | \
+ common_dimm->rcw[15];
+ debug("FSLDDR: ddr_sdram_rcw_1 = 0x%08x\n", ddr->ddr_sdram_rcw_1);
+ debug("FSLDDR: ddr_sdram_rcw_2 = 0x%08x\n", ddr->ddr_sdram_rcw_2);
+ }
+}
+
/* DDR SDRAM control configuration (DDR_SDRAM_CFG) */
static void set_ddr_sdram_cfg(fsl_ddr_cfg_regs_t *ddr,
const memctl_options_t *popts,
@@ -938,6 +967,7 @@ static void set_ddr_sdram_clk_cntl(fsl_ddr_cfg_regs_t *ddr,
clk_adjust = popts->clk_adjust;
ddr->ddr_sdram_clk_cntl = (clk_adjust & 0xF) << 23;
+ debug("FSLDDR: clk_cntl = 0x%08x\n", ddr->ddr_sdram_clk_cntl);
}
/* DDR Initialization Address (DDR_INIT_ADDR) */
@@ -1113,54 +1143,6 @@ static void set_ddr_sr_cntr(fsl_ddr_cfg_regs_t *ddr, unsigned int sr_it)
ddr->ddr_sr_cntr = (sr_it & 0xF) << 16;
}
-/* DDR SDRAM Register Control Word 1 (DDR_SDRAM_RCW_1) */
-static void set_ddr_sdram_rcw_1(fsl_ddr_cfg_regs_t *ddr)
-{
- unsigned int rcw0 = 0; /* RCW0: Register Control Word 0 */
- unsigned int rcw1 = 0; /* RCW1: Register Control Word 1 */
- unsigned int rcw2 = 0; /* RCW2: Register Control Word 2 */
- unsigned int rcw3 = 0; /* RCW3: Register Control Word 3 */
- unsigned int rcw4 = 0; /* RCW4: Register Control Word 4 */
- unsigned int rcw5 = 0; /* RCW5: Register Control Word 5 */
- unsigned int rcw6 = 0; /* RCW6: Register Control Word 6 */
- unsigned int rcw7 = 0; /* RCW7: Register Control Word 7 */
-
- ddr->ddr_sdram_rcw_1 = (0
- | ((rcw0 & 0xF) << 28)
- | ((rcw1 & 0xF) << 24)
- | ((rcw2 & 0xF) << 20)
- | ((rcw3 & 0xF) << 16)
- | ((rcw4 & 0xF) << 12)
- | ((rcw5 & 0xF) << 8)
- | ((rcw6 & 0xF) << 4)
- | ((rcw7 & 0xF) << 0)
- );
-}
-
-/* DDR SDRAM Register Control Word 2 (DDR_SDRAM_RCW_2) */
-static void set_ddr_sdram_rcw_2(fsl_ddr_cfg_regs_t *ddr)
-{
- unsigned int rcw8 = 0; /* RCW0: Register Control Word 8 */
- unsigned int rcw9 = 0; /* RCW1: Register Control Word 9 */
- unsigned int rcw10 = 0; /* RCW2: Register Control Word 10 */
- unsigned int rcw11 = 0; /* RCW3: Register Control Word 11 */
- unsigned int rcw12 = 0; /* RCW4: Register Control Word 12 */
- unsigned int rcw13 = 0; /* RCW5: Register Control Word 13 */
- unsigned int rcw14 = 0; /* RCW6: Register Control Word 14 */
- unsigned int rcw15 = 0; /* RCW7: Register Control Word 15 */
-
- ddr->ddr_sdram_rcw_2 = (0
- | ((rcw8 & 0xF) << 28)
- | ((rcw9 & 0xF) << 24)
- | ((rcw10 & 0xF) << 20)
- | ((rcw11 & 0xF) << 16)
- | ((rcw12 & 0xF) << 12)
- | ((rcw13 & 0xF) << 8)
- | ((rcw14 & 0xF) << 4)
- | ((rcw15 & 0xF) << 0)
- );
-}
-
static void set_ddr_eor(fsl_ddr_cfg_regs_t *ddr, const memctl_options_t *popts)
{
if (popts->addr_hash) {
@@ -1430,8 +1412,7 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts,
set_ddr_sr_cntr(ddr, sr_it);
- set_ddr_sdram_rcw_1(ddr);
- set_ddr_sdram_rcw_2(ddr);
+ set_ddr_sdram_rcw(ddr, common_dimm);
return check_fsl_memctl_config_regs(ddr);
}
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c
index d4199baa8..29cea5326 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c
@@ -90,6 +90,7 @@ ddr_compute_dimm_parameters(const ddr3_spd_eeprom_t *spd,
{
unsigned int retval;
unsigned int mtb_ps;
+ int i;
if (spd->mem_type) {
if (spd->mem_type != SPD_MEMTYPE_DDR3) {
@@ -131,8 +132,11 @@ ddr_compute_dimm_parameters(const ddr3_spd_eeprom_t *spd,
case 0x01: /* RDIMM */
case 0x05: /* Mini-RDIMM */
pdimm->registered_dimm = 1; /* register buffered */
+ for (i = 0; i < 16; i += 2) {
+ pdimm->rcw[i] = spd->mod_section.registered.rcw[i/2] & 0x0F;
+ pdimm->rcw[i+1] = (spd->mod_section.registered.rcw[i/2] >> 4) & 0x0F;
+ }
break;
-
case 0x02: /* UDIMM */
case 0x03: /* SO-DIMM */
case 0x04: /* Micro-DIMM */
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 ce6c148d0..029e566b6 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c
@@ -76,7 +76,7 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
common_timing_params_t *outpdimm,
unsigned int number_of_dimms)
{
- unsigned int i;
+ unsigned int i, j;
unsigned int tCKmin_X_ps = 0;
unsigned int tCKmax_ps = 0xFFFFFFFF;
@@ -98,7 +98,7 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
unsigned int tDQSQ_max_ps = 0;
unsigned int tQHS_ps = 0;
- unsigned int temp1, temp2;
+ unsigned int temp1, temp2, temp3;
unsigned int additive_latency = 0;
#if !defined(CONFIG_FSL_DDR3)
const unsigned int mclk_ps = get_memory_clk_period_ps();
@@ -231,6 +231,20 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
"DIMMs detected!\n");
}
+ temp1 = 0;
+ if (outpdimm->all_DIMMs_registered)
+ for (j = 0; j < 16; j++) {
+ outpdimm->rcw[j] = dimm_params[0].rcw[j];
+ for (i = 1; i < number_of_dimms; i++)
+ if (dimm_params[i].rcw[j] != dimm_params[0].rcw[j]) {
+ temp3 = 1;
+ break;
+ }
+ }
+
+ if (temp1 != 0)
+ printf("ERROR: Mix different RDIMM detected!\n");
+
#if defined(CONFIG_FSL_DDR3)
if (compute_cas_latency_ddr3(dimm_params, outpdimm, number_of_dimms))
return 1;
diff --git a/arch/powerpc/include/asm/fsl_ddr_dimm_params.h b/arch/powerpc/include/asm/fsl_ddr_dimm_params.h
index 55923e09b..be8260277 100644
--- a/arch/powerpc/include/asm/fsl_ddr_dimm_params.h
+++ b/arch/powerpc/include/asm/fsl_ddr_dimm_params.h
@@ -81,6 +81,9 @@ typedef struct dimm_params_s {
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 */
+
+ /* DDR3 RDIMM */
+ unsigned char rcw[16]; /* Register Control Word 0-15 */
} dimm_params_t;
extern unsigned int ddr_compute_dimm_parameters(
diff --git a/include/ddr_spd.h b/include/ddr_spd.h
index 10402c5bb..710e5289c 100644
--- a/include/ddr_spd.h
+++ b/include/ddr_spd.h
@@ -243,6 +243,20 @@ typedef struct ddr3_spd_eeprom_s {
unsigned char mod_thickness;
/* 62 (Registered) Reference Raw Card Used */
unsigned char ref_raw_card;
+ /* 63 DIMM Module Attributes */
+ unsigned char modu_attr;
+ /* 64 RDIMM Thermal Heat Spreader Solution */
+ unsigned char thermal;
+ /* 65 Register Manufacturer ID Code, Least Significant Byte */
+ unsigned char reg_id_lo;
+ /* 66 Register Manufacturer ID Code, Most Significant Byte */
+ unsigned char reg_id_hi;
+ /* 67 Register Revision Number */
+ unsigned char reg_rev;
+ /* 68 Register Type */
+ unsigned char reg_type;
+ /* 69-76 RC1,3,5...15 (MS Nibble) / RC0,2,4...14 (LS Nibble) */
+ unsigned char rcw[8];
} registered;
unsigned char uc[57]; /* 60-116 Module-Specific Section */
} mod_section;
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 06:55:07 +0000