diff --git a/plat/arm/css/sgi/ras/sgi_ras_common.c b/plat/arm/css/sgi/ras/sgi_ras_common.c
new file mode 100644
index 0000000..9789670
--- /dev/null
+++ b/plat/arm/css/sgi/ras/sgi_ras_common.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2018-2023, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <string.h>
+
+#include <bl31/interrupt_mgmt.h>
+#include <plat/common/platform.h>
+#include <platform_def.h>
+
+#include <sgi_ras.h>
+
+static struct plat_sgi_ras_config *sgi_ras_config;
+
+/*
+ * Find event map for a given interrupt number. On success, returns pointer to
+ * the event map. On error, returns NULL.
+ */
+struct sgi_ras_ev_map *sgi_find_ras_event_map_by_intr(uint32_t intr_num)
+{
+	struct sgi_ras_ev_map *map;
+	int size;
+	int i;
+
+	if (sgi_ras_config == NULL) {
+		ERROR("RAS config is NULL\n");
+		return NULL;
+	}
+
+	map = sgi_ras_config->ev_map;
+	size = sgi_ras_config->ev_map_size;
+
+	for (i = 0; i < size; i++) {
+		if (map->intr == intr_num)
+			return map;
+
+		map++;
+	}
+
+	return NULL;
+}
+
+/*
+ * Programs GIC registers and configures interrupt ID's as Group0 EL3
+ * interrupts. Current support is to register PPI and SPI interrupts.
+ */
+static void sgi_ras_intr_configure(int intr, int intr_type)
+{
+	plat_ic_set_interrupt_type(intr, INTR_TYPE_EL3);
+	plat_ic_set_interrupt_priority(intr, PLAT_RAS_PRI);
+	plat_ic_clear_interrupt_pending(intr);
+
+	/* Routing mode option available only for SPI interrupts */
+	if (intr_type == SGI_RAS_INTR_TYPE_SPI) {
+		plat_ic_set_spi_routing(intr, INTR_ROUTING_MODE_ANY,
+					(u_register_t)read_mpidr_el1());
+	}
+	plat_ic_enable_interrupt(intr);
+}
+
+/*
+ * Initialization function for the framework.
+ *
+ * Registers RAS config provided by the platform and then configures and
+ * enables interrupt for each registered error. On success, return 0.
+ */
+int sgi_ras_platform_setup(struct plat_sgi_ras_config *config)
+{
+	struct sgi_ras_ev_map *map;
+	int size;
+	int i;
+
+	/* Check if parameter is valid. */
+	if (config == NULL) {
+		ERROR("SGI: Failed to register RAS config\n");
+		return -1;
+	}
+
+	/*
+	 * Maintain a reference to the platform RAS config data for later
+	 * use.
+	 */
+	sgi_ras_config = config;
+
+	map = sgi_ras_config->ev_map;
+	size = sgi_ras_config->ev_map_size;
+
+	for (i = 0; i < size; i++) {
+		sgi_ras_intr_configure(map->intr, map->intr_type);
+		map++;
+	}
+
+	INFO("SGI: Platform RAS setup successful\n");
+
+	return 0;
+}