mb/ocp/deltalake: Define SMBIOS type 16 error correction type by

RasModesEnabled

Use RasModesEnabled from SystemMemoryMapHob to define SMBIOS type
16 error correction type

Tested=Execute "dmidecode -t 16" to check if error correction type
is correct.

Signed-off-by: Tim Chu <Tim.Chu@quantatw.com>
Change-Id: I3636fcc4a874261cf484c10e2db15015ac5d7e68
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47509
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jonathan Zhang <jonzhang@fb.com>

src/mainboard/ocp/deltalake/ramstage.c

@@ -26,6 +26,31 @@
 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.