mb/ocp/deltalake: Fill ECC type in romstage

Fill the ECC type in `struct memory_info` in romstage, and in SoC code.
The SMBIOS override is unnecessary, and this is not mainboard-specific.

Change-Id: I8370b3ee7d75914b895946b53923598adf87b522
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50179
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Johnny Lin <Johnny_Lin@wiwynn.com>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-by: Jonathan Zhang <jonzhang@fb.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/arch/x86/smbios.c

@@ -443,11 +443,6 @@ static int get_socket_type(void)
 	return 0x02; /* Unknown */
 }
 
-unsigned int __weak smbios_memory_error_correction_type(struct memory_info *meminfo)
-{
-	return meminfo->ecc_type;
-}
-
 unsigned int __weak smbios_processor_external_clock(void)
 {
 	return 0; /* Unknown */
@@ -1023,7 +1018,7 @@ static int smbios_write_type16(unsigned long *current, int *handle)
 
 	t->location = MEMORY_ARRAY_LOCATION_SYSTEM_BOARD;
 	t->use = MEMORY_ARRAY_USE_SYSTEM;
-	t->memory_error_correction = smbios_memory_error_correction_type(meminfo);
+	t->memory_error_correction = meminfo->ecc_type;
 
 	/* no error information handle available */
 	t->memory_error_information_handle = 0xFFFE;

src/include/smbios.h

@@ -61,7 +61,6 @@ void smbios_type0_bios_version(uintptr_t address);
 
 void smbios_ec_revision(uint8_t *ec_major_revision, uint8_t *ec_minor_revision);
 
-unsigned int smbios_memory_error_correction_type(struct memory_info *meminfo);
 unsigned int smbios_processor_external_clock(void);
 unsigned int smbios_processor_characteristics(void);
 struct cpuid_result;

src/mainboard/ocp/deltalake/ramstage.c

@@ -23,31 +23,6 @@
 extern struct fru_info_str fru_strings;
 static char slot_id_str[SLOT_ID_LEN];
 
-/* Override SMBIOS type 16 error correction type. */
-unsigned int smbios_memory_error_correction_type(struct memory_info *meminfo)
-{
-	const struct SystemMemoryMapHob *hob;
-
-	hob = get_system_memory_map();
-	assert(hob != NULL);
-
-	switch (hob->RasModesEnabled) {
-	case CH_INDEPENDENT:
-		return MEMORY_ARRAY_ECC_SINGLE_BIT;
-	case FULL_MIRROR_1LM:
-	case PARTIAL_MIRROR_1LM:
-	case FULL_MIRROR_2LM:
-	case PARTIAL_MIRROR_2LM:
-		return MEMORY_ARRAY_ECC_MULTI_BIT;
-	case RK_SPARE:
-		return MEMORY_ARRAY_ECC_SINGLE_BIT;
-	case CH_LOCKSTEP:
-		return MEMORY_ARRAY_ECC_SINGLE_BIT;
-	default:
-		return MEMORY_ARRAY_ECC_MULTI_BIT;
-	}
-}
-
 /*
  * Update SMBIOS type 0 ec version.
  * In deltalake, BMC version is used to represent ec version.

src/soc/intel/xeon_sp/cpx/romstage.c

@@ -37,6 +37,25 @@ static const struct SystemMemoryMapHob *get_system_memory_map(void)
 	return *memmap_addr;
 }
 
+static uint8_t get_error_correction_type(const uint8_t RasModesEnabled)
+{
+	switch (RasModesEnabled) {
+	case CH_INDEPENDENT:
+		return MEMORY_ARRAY_ECC_SINGLE_BIT;
+	case FULL_MIRROR_1LM:
+	case PARTIAL_MIRROR_1LM:
+	case FULL_MIRROR_2LM:
+	case PARTIAL_MIRROR_2LM:
+		return MEMORY_ARRAY_ECC_MULTI_BIT;
+	case RK_SPARE:
+		return MEMORY_ARRAY_ECC_SINGLE_BIT;
+	case CH_LOCKSTEP:
+		return MEMORY_ARRAY_ECC_SINGLE_BIT;
+	default:
+		return MEMORY_ARRAY_ECC_MULTI_BIT;
+	}
+}
+
 /* Save the DIMM information for SMBIOS table 17 */
 void save_dimm_info(void)
 {
@@ -63,6 +82,7 @@ void save_dimm_info(void)
 	/* According to Dear Customer Letter it's 1.12 TB per processor. */
 	mem_info->max_capacity_mib = 1.12 * MiB * CONFIG_MAX_SOCKET;
 	mem_info->number_of_devices = CONFIG_DIMM_MAX;
+	mem_info->ecc_type = get_error_correction_type(hob->RasModesEnabled);
 	dimm_max = ARRAY_SIZE(mem_info->dimm);
 	vdd_voltage = get_ddr_voltage(hob->DdrVoltage);
 	/* For now only implement for one socket and hard-coded for DDR4 */