diff --git a/changelog.yaml b/changelog.yaml
index f586471..09015d4 100644
--- a/changelog.yaml
+++ b/changelog.yaml
@@ -186,9 +186,6 @@
             scope: neoverse-rd
 
             subsections:
-              - title: SGI-575
-                scope: sgi575
-
               - title: RD-E1-Edge
                 scope: rde1edge
 
diff --git a/docs/about/maintainers.rst b/docs/about/maintainers.rst
index 3e33824..17d414b 100644
--- a/docs/about/maintainers.rst
+++ b/docs/about/maintainers.rst
@@ -591,7 +591,6 @@
 :|F|: plat/arm/board/neoverse_rd/platform/rdn2/
 :|F|: plat/arm/board/neoverse_rd/platform/rdv1/
 :|F|: plat/arm/board/neoverse_rd/platform/rdv1mc/
-:|F|: plat/arm/board/neoverse_rd/platform/sgi575/
 
 Arm Total Compute platform port
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/docs/plat/index.rst b/docs/plat/index.rst
index 768a437..715b488 100644
--- a/docs/plat/index.rst
+++ b/docs/plat/index.rst
@@ -65,7 +65,6 @@
 
    - Arm Neoverse N1 System Development Platform (N1SDP)
    - Arm Neoverse Reference Design N1 Edge (RD-N1-Edge) FVP
-   - Arm SGI-575
    - MediaTek MT8173 SoCs
 
 Deprecated platforms
@@ -80,6 +79,9 @@
 |     fvp_r      |      Arm       |        2.13        |         2.13       |
 |                |                |                    |                    |
 +----------------+----------------+--------------------+--------------------+
+|    SGI-575     |      Arm       |        2.13        |         2.13       |
+|                |                |                    |                    |
++----------------+----------------+--------------------+--------------------+
 
 --------------
 
diff --git a/plat/arm/board/neoverse_rd/common/include/nrd_variant.h b/plat/arm/board/neoverse_rd/common/include/nrd_variant.h
index 86d82e2..cd40e89 100644
--- a/plat/arm/board/neoverse_rd/common/include/nrd_variant.h
+++ b/plat/arm/board/neoverse_rd/common/include/nrd_variant.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2024, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2025, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -7,9 +7,6 @@
 #ifndef NRD_VARIANT_H
 #define NRD_VARIANT_H
 
-/* SSC_VERSION values for SGI575 */
-#define SGI575_SSC_VER_PART_NUM			0x0783
-
 /* SID Version values for RD-N1E1-Edge */
 #define RD_N1E1_EDGE_SID_VER_PART_NUM		0x0786
 #define RD_E1_EDGE_CONFIG_ID			0x2
diff --git a/plat/arm/board/neoverse_rd/common/nrd_bl31_setup.c b/plat/arm/board/neoverse_rd/common/nrd_bl31_setup.c
index bb89c04..8bc1327 100644
--- a/plat/arm/board/neoverse_rd/common/nrd_bl31_setup.c
+++ b/plat/arm/board/neoverse_rd/common/nrd_bl31_setup.c
@@ -24,14 +24,6 @@
 
 nrd_platform_info_t nrd_plat_info;
 
-static scmi_channel_plat_info_t sgi575_scmi_plat_info = {
-		.scmi_mbx_mem = CSS_SCMI_PAYLOAD_BASE,
-		.db_reg_addr = PLAT_CSS_MHU_BASE + CSS_SCMI_MHU_DB_REG_OFF,
-		.db_preserve_mask = 0xfffffffe,
-		.db_modify_mask = 0x1,
-		.ring_doorbell = &mhu_ring_doorbell,
-};
-
 static scmi_channel_plat_info_t plat_rd_scmi_info[] = {
 	{
 		.scmi_mbx_mem = CSS_SCMI_PAYLOAD_BASE,
@@ -140,8 +132,6 @@
 			panic();
 		}
 		return &plat3_rd_scmi_info[channel_id];
-	} else if (nrd_plat_info.platform_id == SGI575_SSC_VER_PART_NUM) {
-		return &sgi575_scmi_plat_info;
 	} else {
 		panic();
 	}
diff --git a/plat/arm/board/neoverse_rd/common/nrd_interconnect.c b/plat/arm/board/neoverse_rd/common/nrd_interconnect.c
index 4f9cc85..af8980d 100644
--- a/plat/arm/board/neoverse_rd/common/nrd_interconnect.c
+++ b/plat/arm/board/neoverse_rd/common/nrd_interconnect.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2024, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2025, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -8,12 +8,6 @@
 #include <common/debug.h>
 #include <plat/arm/common/plat_arm.h>
 
-/*
- * For SGI575 which support FCM (with automatic interconnect enter/exit),
- * we should not do anything in these interface functions.
- * They are used to override the weak functions in cci drivers.
- */
-
 /******************************************************************************
  * Helper function to initialize ARM interconnect driver.
  *****************************************************************************/
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/fdts/sgi575_fw_config.dts b/plat/arm/board/neoverse_rd/platform/sgi575/fdts/sgi575_fw_config.dts
deleted file mode 100644
index fe62b6d..0000000
--- a/plat/arm/board/neoverse_rd/platform/sgi575/fdts/sgi575_fw_config.dts
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * Copyright (c) 2018-2024, Arm Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <common/tbbr/tbbr_img_def.h>
-
-/dts-v1/;
-
-/ {
-	dtb-registry {
-		compatible = "fconf,dyn_cfg-dtb_registry";
-
-		tb_fw-config {
-			load-address = <0x0 0x4001300>;
-			max-size = <0x200>;
-			id = <TB_FW_CONFIG_ID>;
-		};
-
-		nt_fw-config {
-			load-address = <0x0 0xFEF00000>;
-			max-size = <0x0100000>;
-			id = <NT_FW_CONFIG_ID>;
-		};
-	};
-};
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/fdts/sgi575_nt_fw_config.dts b/plat/arm/board/neoverse_rd/platform/sgi575/fdts/sgi575_nt_fw_config.dts
deleted file mode 100644
index 0573488..0000000
--- a/plat/arm/board/neoverse_rd/platform/sgi575/fdts/sgi575_nt_fw_config.dts
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright (c) 2018-2024, Arm Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-/dts-v1/;
-/ {
-	/* compatible string */
-	compatible = "arm,sgi575";
-
-	/*
-	 * Place holder for system-id node with default values. The
-	 * value of platform-id and config-id will be set to the
-	 * correct values during the BL2 stage of boot.
-	 */
-	system-id {
-		platform-id = <0x0>;
-		config-id = <0x0>;
-		multi-chip-mode = <0x0>;
-	};
-};
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/fdts/sgi575_tb_fw_config.dts b/plat/arm/board/neoverse_rd/platform/sgi575/fdts/sgi575_tb_fw_config.dts
deleted file mode 100644
index c370623..0000000
--- a/plat/arm/board/neoverse_rd/platform/sgi575/fdts/sgi575_tb_fw_config.dts
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (c) 2020-2024, Arm Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-/dts-v1/;
-
-/ {
-	tb_fw-config {
-		compatible = "arm,tb_fw";
-
-		/* Disable authentication for development */
-		disable_auth = <0x0>;
-
-		/*
-		 * The following two entries are placeholders for Mbed TLS
-		 * heap information. The default values don't matter since
-		 * they will be overwritten by BL1.
-		 * In case of having shared Mbed TLS heap between BL1 and BL2,
-		 * BL1 will populate these two properties with the respective
-		 * info about the shared heap. This info will be available for
-		 * BL2 in order to locate and re-use the heap.
-		 */
-		mbedtls_heap_addr = <0x0 0x0>;
-		mbedtls_heap_size = <0x0>;
-	};
-};
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/include/platform_def.h b/plat/arm/board/neoverse_rd/platform/sgi575/include/platform_def.h
deleted file mode 100644
index 0797017..0000000
--- a/plat/arm/board/neoverse_rd/platform/sgi575/include/platform_def.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (c) 2018-2024, Arm Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#ifndef PLATFORM_DEF_H
-#define PLATFORM_DEF_H
-
-#include <lib/utils_def.h>
-#include <nrd_css_fw_def1.h>
-#include <nrd_plat_arm_def1.h>
-#include <nrd_ros_fw_def1.h>
-#include <nrd_sdei.h>
-
-/* Remote chip address offset */
-#define NRD_REMOTE_CHIP_MEM_OFFSET(n)	\
-		((ULL(1) << NRD_ADDR_BITS_PER_CHIP) * (n))
-
-#define PLAT_ARM_CLUSTER_COUNT		U(2)
-#define NRD_MAX_CPUS_PER_CLUSTER	U(4)
-#define NRD_MAX_PE_PER_CPU		U(1)
-
-#define PLAT_CSS_MHU_BASE		UL(0x45000000)
-
-/* Base address of DMC-620 instances */
-#define SGI575_DMC620_BASE0		UL(0x4e000000)
-#define SGI575_DMC620_BASE1		UL(0x4e100000)
-
-/* Maximum number of address bits used per chip */
-#define NRD_ADDR_BITS_PER_CHIP	U(36)
-
-/* GIC related constants */
-#define PLAT_ARM_GICD_BASE		UL(0x30000000)
-#define PLAT_ARM_GICR_BASE		UL(0x300C0000)
-
-#endif /* PLATFORM_DEF_H */
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/platform.mk b/plat/arm/board/neoverse_rd/platform/sgi575/platform.mk
deleted file mode 100644
index 1f40107..0000000
--- a/plat/arm/board/neoverse_rd/platform/sgi575/platform.mk
+++ /dev/null
@@ -1,73 +0,0 @@
-#
-# Copyright (c) 2018-2024, Arm Limited and Contributors. All rights reserved.
-#
-# SPDX-License-Identifier: BSD-3-Clause
-#
-
-include plat/arm/board/neoverse_rd/common/nrd-common.mk
-
-SGI575_BASE		=	plat/arm/board/neoverse_rd/platform/sgi575
-
-PLAT_INCLUDES		+=	-I${NRD_COMMON_BASE}/include/nrd1/	\
-				-I${SGI575_BASE}/include/
-
-NRD_CPU_SOURCES		:=	lib/cpus/aarch64/cortex_a75.S
-
-PLAT_BL_COMMON_SOURCES	+=	${NRD_COMMON_BASE}/nrd_plat1.c
-
-BL1_SOURCES		+=	${NRD_CPU_SOURCES}			\
-				${SGI575_BASE}/sgi575_err.c
-
-BL2_SOURCES		+=	${SGI575_BASE}/sgi575_plat.c		\
-				${SGI575_BASE}/sgi575_security.c	\
-				${SGI575_BASE}/sgi575_err.c		\
-				drivers/arm/tzc/tzc_dmc620.c		\
-				lib/utils/mem_region.c			\
-				plat/arm/common/arm_nor_psci_mem_protect.c
-
-BL31_SOURCES		+=	${NRD_CPU_SOURCES}			\
-				${SGI575_BASE}/sgi575_plat.c		\
-				${SGI575_BASE}/sgi575_topology.c	\
-				drivers/cfi/v2m/v2m_flash.c		\
-				lib/utils/mem_region.c			\
-				plat/arm/common/arm_nor_psci_mem_protect.c
-
-ifeq (${TRUSTED_BOARD_BOOT}, 1)
-BL1_SOURCES		+=	${SGI575_BASE}/sgi575_trusted_boot.c
-BL2_SOURCES		+=	${SGI575_BASE}/sgi575_trusted_boot.c
-endif
-
-# Add the FDT_SOURCES and options for Dynamic Config
-FDT_SOURCES		+=	${SGI575_BASE}/fdts/${PLAT}_fw_config.dts	\
-				${SGI575_BASE}/fdts/${PLAT}_tb_fw_config.dts
-
-FW_CONFIG		:=	${BUILD_PLAT}/fdts/${PLAT}_fw_config.dtb
-TB_FW_CONFIG		:=	${BUILD_PLAT}/fdts/${PLAT}_tb_fw_config.dtb
-
-# Add the FW_CONFIG to FIP and specify the same to certtool
-$(eval $(call TOOL_ADD_PAYLOAD,${FW_CONFIG},--fw-config,${FW_CONFIG}))
-# Add the TB_FW_CONFIG to FIP and specify the same to certtool
-$(eval $(call TOOL_ADD_PAYLOAD,${TB_FW_CONFIG},--tb-fw-config,${TB_FW_CONFIG}))
-
-FDT_SOURCES		+=	${SGI575_BASE}/fdts/${PLAT}_nt_fw_config.dts
-NT_FW_CONFIG		:=	${BUILD_PLAT}/fdts/${PLAT}_nt_fw_config.dtb
-
-# Add the NT_FW_CONFIG to FIP and specify the same to certtool
-$(eval $(call TOOL_ADD_PAYLOAD,${NT_FW_CONFIG},--nt-fw-config,${NT_FW_CONFIG}))
-
-ifneq ($(NRD_CHIP_COUNT),1)
- $(error  "Chip count for SGI575 should be 1, currently set to \
-   ${NRD_CHIP_COUNT}.")
-endif
-
-ifneq ($(NRD_PLATFORM_VARIANT),0)
- $(error "NRD_PLATFORM_VARIANT for SGI575 should always be 0,\
-     currently set to ${NRD_PLATFORM_VARIANT}.")
-endif
-
-ifneq (${RESET_TO_BL31},0)
-  $(error "Using BL31 as the reset vector is not supported on ${PLAT} platform. \
-  Please set RESET_TO_BL31 to 0.")
-endif
-
-override SPMD_SPM_AT_SEL2		:= 0
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_err.c b/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_err.c
deleted file mode 100644
index 7e656ab..0000000
--- a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_err.c
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * Copyright (c) 2019-2024, Arm Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <plat/arm/common/plat_arm.h>
-
-/*
- * sgi575 error handler
- */
-void __dead2 plat_arm_error_handler(int err)
-{
-	while (true) {
-		wfi();
-	}
-}
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_plat.c b/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_plat.c
deleted file mode 100644
index 8b74616..0000000
--- a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_plat.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (c) 2018-2024, Arm Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <plat/common/platform.h>
-
-#include <nrd_plat.h>
-#include <nrd_variant.h>
-
-unsigned int plat_arm_nrd_get_platform_id(void)
-{
-	return mmio_read_32(SSC_VERSION) & SSC_VERSION_PART_NUM_MASK;
-}
-
-unsigned int plat_arm_nrd_get_config_id(void)
-{
-	return (mmio_read_32(SSC_VERSION) >> SSC_VERSION_CONFIG_SHIFT)
-			& SSC_VERSION_CONFIG_MASK;
-}
-
-unsigned int plat_arm_nrd_get_multi_chip_mode(void)
-{
-	return 0;
-}
-
-void bl31_platform_setup(void)
-{
-	nrd_bl31_common_platform_setup();
-}
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_security.c b/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_security.c
deleted file mode 100644
index 8b8a382..0000000
--- a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_security.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (c) 2018-2024, Arm Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <platform_def.h>
-
-#include <common/debug.h>
-#include <nrd_dmc620_tzc_regions.h>
-
-uintptr_t sgi575_dmc_base[] = {
-	SGI575_DMC620_BASE0,
-	SGI575_DMC620_BASE1
-};
-
-static const tzc_dmc620_driver_data_t sgi575_plat_driver_data = {
-	.dmc_base = sgi575_dmc_base,
-	.dmc_count = ARRAY_SIZE(sgi575_dmc_base)
-};
-
-static const tzc_dmc620_acc_addr_data_t sgi575_acc_addr_data[] = {
-	NRD_DMC620_TZC_REGIONS_DEF
-};
-
-static const tzc_dmc620_config_data_t sgi575_plat_config_data = {
-	.plat_drv_data = &sgi575_plat_driver_data,
-	.plat_acc_addr_data = sgi575_acc_addr_data,
-	.acc_addr_count = ARRAY_SIZE(sgi575_acc_addr_data)
-};
-
-/* Initialize the secure environment */
-void plat_arm_security_setup(void)
-{
-	arm_tzc_dmc620_setup(&sgi575_plat_config_data);
-}
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_topology.c b/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_topology.c
deleted file mode 100644
index 15ffc65..0000000
--- a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_topology.c
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (c) 2019-2024, Arm Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <plat/arm/common/plat_arm.h>
-
-/******************************************************************************
- * The power domain tree descriptor.
- ******************************************************************************/
-static const unsigned char sgi575_pd_tree_desc[] = {
-	PLAT_ARM_CLUSTER_COUNT,
-	NRD_MAX_CPUS_PER_CLUSTER,
-	NRD_MAX_CPUS_PER_CLUSTER
-};
-
-/*******************************************************************************
- * This function returns the topology tree information.
- ******************************************************************************/
-const unsigned char *plat_get_power_domain_tree_desc(void)
-{
-	return sgi575_pd_tree_desc;
-}
-
-/*******************************************************************************
- * The array mapping platform core position (implemented by plat_my_core_pos())
- * to the SCMI power domain ID implemented by SCP.
- ******************************************************************************/
-const uint32_t plat_css_core_pos_to_scmi_dmn_id_map[] = {
-	0, 1, 2, 3, 4, 5, 6, 7
-};
diff --git a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_trusted_boot.c b/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_trusted_boot.c
deleted file mode 100644
index 84622d0..0000000
--- a/plat/arm/board/neoverse_rd/platform/sgi575/sgi575_trusted_boot.c
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (c) 2020-2024, Arm Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <plat/arm/common/plat_arm.h>
-
-/*
- * Return the ROTPK hash in the following ASN.1 structure in DER format:
- *
- * AlgorithmIdentifier  ::=  SEQUENCE  {
- *     algorithm         OBJECT IDENTIFIER,
- *     parameters        ANY DEFINED BY algorithm OPTIONAL
- * }
- *
- * DigestInfo ::= SEQUENCE {
- *     digestAlgorithm   AlgorithmIdentifier,
- *     digest            OCTET STRING
- * }
- */
-int plat_get_rotpk_info(void *cookie, void **key_ptr, unsigned int *key_len,
-			unsigned int *flags)
-{
-	return arm_get_rotpk_info(cookie, key_ptr, key_len, flags);
-}