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-rw-r--r--src/include/dimm_info_util.h2
-rw-r--r--src/include/spd.h1
-rw-r--r--src/lib/dimm_info_util.c8
-rw-r--r--src/soc/amd/common/fsp/dmi.c4
-rw-r--r--src/soc/amd/common/pi/amd_late_init.c4
-rw-r--r--src/soc/intel/common/smbios.c2
6 files changed, 13 insertions, 8 deletions
diff --git a/src/include/dimm_info_util.h b/src/include/dimm_info_util.h
index d20e8cddfc..04e9336179 100644
--- a/src/include/dimm_info_util.h
+++ b/src/include/dimm_info_util.h
@@ -12,7 +12,7 @@
* Use this when setting dimm_info.bus_width if the raw SPD values are not
* available.
*/
-uint8_t smbios_bus_width_to_spd_width(uint16_t total_width,
+uint8_t smbios_bus_width_to_spd_width(uint8_t ddr_type, uint16_t total_width,
uint16_t data_width);
/**
diff --git a/src/include/spd.h b/src/include/spd.h
index ec5296ec2f..af3072e8ec 100644
--- a/src/include/spd.h
+++ b/src/include/spd.h
@@ -209,5 +209,6 @@ enum spd_memory_type {
#define SPD_MINI_UDIMM 0x20
#define SPD_ECC_8BIT (1<<3)
+#define SPD_ECC_8BIT_LP5_DDR5 (1<<4)
#endif
diff --git a/src/lib/dimm_info_util.c b/src/lib/dimm_info_util.c
index fb8e06f149..0e7cc12f18 100644
--- a/src/lib/dimm_info_util.c
+++ b/src/lib/dimm_info_util.c
@@ -5,7 +5,8 @@
#include <spd.h>
#include <console/console.h>
-uint8_t smbios_bus_width_to_spd_width(uint16_t total_width, uint16_t data_width)
+uint8_t smbios_bus_width_to_spd_width(uint8_t ddr_type, uint16_t total_width,
+ uint16_t data_width)
{
uint8_t out;
@@ -38,7 +39,10 @@ uint8_t smbios_bus_width_to_spd_width(uint16_t total_width, uint16_t data_width)
switch (extension_bits) {
case 8:
- out |= SPD_ECC_8BIT;
+ if (ddr_type == MEMORY_TYPE_DDR5 || ddr_type == MEMORY_TYPE_LPDDR5)
+ out |= SPD_ECC_8BIT_LP5_DDR5;
+ else
+ out |= SPD_ECC_8BIT;
break;
case 0:
/* No extension bits */
diff --git a/src/soc/amd/common/fsp/dmi.c b/src/soc/amd/common/fsp/dmi.c
index 61d43f7aae..223cce1577 100644
--- a/src/soc/amd/common/fsp/dmi.c
+++ b/src/soc/amd/common/fsp/dmi.c
@@ -54,8 +54,8 @@ static void transfer_memory_info(const TYPE17_DMI_INFO *dmi17,
dimm->mod_type = smbios_form_factor_to_spd_mod_type(dmi17->FormFactor);
- dimm->bus_width =
- smbios_bus_width_to_spd_width(dmi17->TotalWidth, dmi17->DataWidth);
+ dimm->bus_width = smbios_bus_width_to_spd_width(dmi17->MemoryType, dmi17->TotalWidth,
+ dmi17->DataWidth);
dimm->mod_id = dmi17->ManufacturerIdCode;
diff --git a/src/soc/amd/common/pi/amd_late_init.c b/src/soc/amd/common/pi/amd_late_init.c
index 25aaea37bf..3714404590 100644
--- a/src/soc/amd/common/pi/amd_late_init.c
+++ b/src/soc/amd/common/pi/amd_late_init.c
@@ -38,8 +38,8 @@ static void transfer_memory_info(TYPE17_DMI_INFO *dmi17,
dimm->mod_type = smbios_form_factor_to_spd_mod_type(dmi17->FormFactor);
- dimm->bus_width =
- smbios_bus_width_to_spd_width(dmi17->TotalWidth, dmi17->DataWidth);
+ dimm->bus_width = smbios_bus_width_to_spd_width(dmi17->MemoryType, dmi17->TotalWidth,
+ dmi17->DataWidth);
dimm->mod_id = dmi17->ManufacturerIdCode;
diff --git a/src/soc/intel/common/smbios.c b/src/soc/intel/common/smbios.c
index a2b4a0be0d..213be6578b 100644
--- a/src/soc/intel/common/smbios.c
+++ b/src/soc/intel/common/smbios.c
@@ -65,5 +65,5 @@ void dimm_info_fill(struct dimm_info *dimm, u32 dimm_capacity, u8 ddr_type,
if (ecc_support)
total_width += EXTENSION_BUS_WIDTH_8BITS;
- dimm->bus_width = smbios_bus_width_to_spd_width(total_width, data_width);
+ dimm->bus_width = smbios_bus_width_to_spd_width(ddr_type, total_width, data_width);
}