Adding upstream version 2.10.0+dfsg.upstream/2.10.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

12 files changed, 784 insertions, 0 deletions

diff --git a/plat/arm/board/rdn2/fdts/rdn2_fw_config.dts b/plat/arm/board/rdn2/fdts/rdn2_fw_config.dts
new file mode 100644
index 0000000..9c9cefe
--- /dev/null
+++ b/plat/arm/board/rdn2/fdts/rdn2_fw_config.dts
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2020, 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/rdn2/fdts/rdn2_nt_fw_config.dts b/plat/arm/board/rdn2/fdts/rdn2_nt_fw_config.dts
new file mode 100644
index 0000000..dd70141
--- /dev/null
+++ b/plat/arm/board/rdn2/fdts/rdn2_nt_fw_config.dts
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2020 - 2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/dts-v1/;
+/ {
+	/* compatible string */
+	compatible = "arm,rd-n2";
+
+	/*
+	 * 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>;
+		/*
+		 * First cell pair: Count of isolated CPUs in the list.
+		 * Rest of the cells: MPID list of the isolated CPUs.
+		 */
+		isolated-cpu-list = <0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0
+				     0x0 0x0>;
+	};
+};
diff --git a/plat/arm/board/rdn2/fdts/rdn2_tb_fw_config.dts b/plat/arm/board/rdn2/fdts/rdn2_tb_fw_config.dts
new file mode 100644
index 0000000..49eda27
--- /dev/null
+++ b/plat/arm/board/rdn2/fdts/rdn2_tb_fw_config.dts
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2020, 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/rdn2/include/platform_def.h b/plat/arm/board/rdn2/include/platform_def.h
new file mode 100644
index 0000000..2391b72
--- /dev/null
+++ b/plat/arm/board/rdn2/include/platform_def.h
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2020-2023, 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 <sgi_sdei.h>
+#include <sgi_soc_platform_def_v2.h>
+
+#if (CSS_SGI_PLATFORM_VARIANT == 1)
+#define PLAT_ARM_CLUSTER_COUNT		U(8)
+#elif (CSS_SGI_PLATFORM_VARIANT == 2)
+#define PLAT_ARM_CLUSTER_COUNT		U(4)
+#else
+#define PLAT_ARM_CLUSTER_COUNT		U(16)
+#endif
+
+#define CSS_SGI_MAX_CPUS_PER_CLUSTER	U(1)
+#define CSS_SGI_MAX_PE_PER_CPU		U(1)
+
+#define PLAT_CSS_MHU_BASE		UL(0x2A920000)
+#define PLAT_MHUV2_BASE			PLAT_CSS_MHU_BASE
+
+#define CSS_SYSTEM_PWR_DMN_LVL		ARM_PWR_LVL2
+#define PLAT_MAX_PWR_LVL		ARM_PWR_LVL1
+
+/* TZC Related Constants */
+#define PLAT_ARM_TZC_BASE		UL(0x10720000)
+#define PLAT_ARM_TZC_FILTERS		TZC_400_REGION_ATTR_FILTER_BIT(0)
+
+#define TZC400_OFFSET			UL(0x1000000)
+
+#if (CSS_SGI_PLATFORM_VARIANT == 1)
+#define TZC400_COUNT			U(2)
+#elif (CSS_SGI_PLATFORM_VARIANT == 2)
+#define TZC400_COUNT			U(4)
+#else
+#define TZC400_COUNT			U(8)
+#endif
+
+#define TZC400_BASE(n)			(PLAT_ARM_TZC_BASE + \
+						(n * TZC400_OFFSET))
+
+#define TZC_NSAID_ALL_AP		U(0)
+#define TZC_NSAID_PCI			U(1)
+#define TZC_NSAID_HDLCD0		U(2)
+#define TZC_NSAID_DMA			U(5)
+#define TZC_NSAID_DMA2			U(8)
+#define TZC_NSAID_CLCD			U(7)
+#define TZC_NSAID_AP			U(9)
+#define TZC_NSAID_VIRTIO		U(15)
+
+#define PLAT_ARM_TZC_NS_DEV_ACCESS	\
+		(TZC_REGION_ACCESS_RDWR(TZC_NSAID_ALL_AP)) | \
+		(TZC_REGION_ACCESS_RDWR(TZC_NSAID_HDLCD0)) | \
+		(TZC_REGION_ACCESS_RDWR(TZC_NSAID_PCI))    | \
+		(TZC_REGION_ACCESS_RDWR(TZC_NSAID_DMA))    | \
+		(TZC_REGION_ACCESS_RDWR(TZC_NSAID_DMA2))   | \
+		(TZC_REGION_ACCESS_RDWR(TZC_NSAID_AP))     | \
+		(TZC_REGION_ACCESS_RDWR(TZC_NSAID_CLCD))   | \
+		(TZC_REGION_ACCESS_RDWR(TZC_NSAID_VIRTIO))
+
+/*
+ * Physical and virtual address space limits for MMU in AARCH64 & AARCH32 modes
+ */
+#ifdef __aarch64__
+#if (CSS_SGI_PLATFORM_VARIANT == 2)
+#define CSS_SGI_ADDR_BITS_PER_CHIP	U(46)	/* 64TB */
+#else
+#define CSS_SGI_ADDR_BITS_PER_CHIP	U(42)	/* 4TB */
+#endif
+
+#define PLAT_PHY_ADDR_SPACE_SIZE	CSS_SGI_REMOTE_CHIP_MEM_OFFSET( \
+						CSS_SGI_CHIP_COUNT)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	CSS_SGI_REMOTE_CHIP_MEM_OFFSET( \
+						CSS_SGI_CHIP_COUNT)
+#else
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
+#endif
+
+/* GIC related constants */
+#define PLAT_ARM_GICD_BASE		UL(0x30000000)
+#define PLAT_ARM_GICC_BASE		UL(0x2C000000)
+
+/* Virtual address used by dynamic mem_protect for chunk_base */
+#define PLAT_ARM_MEM_PROTEC_VA_FRAME	UL(0xC0000000)
+
+#if (CSS_SGI_PLATFORM_VARIANT == 1)
+#define PLAT_ARM_GICR_BASE		UL(0x30100000)
+#elif (CSS_SGI_PLATFORM_VARIANT == 3)
+#define PLAT_ARM_GICR_BASE		UL(0x30300000)
+#else
+#define PLAT_ARM_GICR_BASE		UL(0x301C0000)
+#endif
+
+/* Interrupt priority level for shutdown/reboot */
+#define PLAT_REBOOT_PRI		GIC_HIGHEST_SEC_PRIORITY
+#define PLAT_EHF_DESC		EHF_PRI_DESC(PLAT_PRI_BITS, PLAT_REBOOT_PRI)
+
+/*
+ * Number of Secure Partitions supported.
+ * SPMC at EL3, uses this count to configure the maximum number of supported
+ * secure partitions.
+ */
+#define SECURE_PARTITION_COUNT          1
+
+/*
+ * Number of NWd Partitions supported.
+ * SPMC at EL3, uses this count to configure the maximum number of supported
+ * nwld partitions.
+ */
+#define NS_PARTITION_COUNT              1
+
+/*
+ * Number of Logical Partitions supported.
+ * SPMC at EL3, uses this count to configure the maximum number of supported
+ * logical partitions.
+ */
+#define MAX_EL3_LP_DESCS_COUNT		1
+
+#endif /* PLATFORM_DEF_H */
diff --git a/plat/arm/board/rdn2/include/rdn2_ras.h b/plat/arm/board/rdn2/include/rdn2_ras.h
new file mode 100644
index 0000000..1d9af60
--- /dev/null
+++ b/plat/arm/board/rdn2/include/rdn2_ras.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2023, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef RDN2_RAS_H
+#define RDN2_RAS_H
+
+#include <sgi_ras.h>
+
+extern struct plat_sgi_ras_config ras_config;
+
+#endif /* RDN2_RAS_H */
diff --git a/plat/arm/board/rdn2/platform.mk b/plat/arm/board/rdn2/platform.mk
new file mode 100644
index 0000000..ef8f3d4
--- /dev/null
+++ b/plat/arm/board/rdn2/platform.mk
@@ -0,0 +1,97 @@
+# Copyright (c) 2020-2023, Arm Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+RD_N2_VARIANTS	:= 0 1 2 3
+ifneq ($(CSS_SGI_PLATFORM_VARIANT),\
+	$(filter $(CSS_SGI_PLATFORM_VARIANT),$(RD_N2_VARIANTS)))
+ $(error "CSS_SGI_PLATFORM_VARIANT for RD-N2 should be 0, 1, 2 or 3, currently \
+	set to ${CSS_SGI_PLATFORM_VARIANT}.")
+endif
+
+$(eval $(call CREATE_SEQ,SEQ,4))
+ifneq ($(CSS_SGI_CHIP_COUNT),$(filter $(CSS_SGI_CHIP_COUNT),$(SEQ)))
+ $(error  "Chip count for RD-N2-MC should be either $(SEQ) \
+ currently it is set to ${CSS_SGI_CHIP_COUNT}.")
+endif
+
+# RD-N2 platform uses GIC-700 which is based on GICv4.1
+GIC_ENABLE_V4_EXTN	:=	1
+GIC_EXT_INTID		:=	1
+
+#Enable GIC Multichip Extension only for Multichip Platforms
+ifeq (${CSS_SGI_PLATFORM_VARIANT}, 2)
+GICV3_IMPL_GIC600_MULTICHIP	:=	1
+endif
+
+override CSS_SYSTEM_GRACEFUL_RESET	:= 1
+override EL3_EXCEPTION_HANDLING		:= 1
+
+include plat/arm/css/sgi/sgi-common.mk
+
+RDN2_BASE		=	plat/arm/board/rdn2
+
+PLAT_INCLUDES		+=	-I${RDN2_BASE}/include/
+
+SGI_CPU_SOURCES		:=	lib/cpus/aarch64/neoverse_n2.S \
+				lib/cpus/aarch64/neoverse_v2.S
+
+PLAT_BL_COMMON_SOURCES	+=	${CSS_ENT_BASE}/sgi_plat_v2.c
+
+BL1_SOURCES		+=	${SGI_CPU_SOURCES}			\
+				${RDN2_BASE}/rdn2_err.c
+
+BL2_SOURCES		+=	${RDN2_BASE}/rdn2_plat.c		\
+				${RDN2_BASE}/rdn2_security.c		\
+				${RDN2_BASE}/rdn2_err.c			\
+				lib/utils/mem_region.c			\
+				drivers/arm/tzc/tzc400.c		\
+				plat/arm/common/arm_tzc400.c		\
+				plat/arm/common/arm_nor_psci_mem_protect.c
+
+BL31_SOURCES		+=	${SGI_CPU_SOURCES}			\
+				${RDN2_BASE}/rdn2_plat.c		\
+				${RDN2_BASE}/rdn2_topology.c		\
+				drivers/cfi/v2m/v2m_flash.c		\
+				lib/utils/mem_region.c			\
+				plat/arm/common/arm_nor_psci_mem_protect.c
+
+ifeq (${TRUSTED_BOARD_BOOT}, 1)
+BL1_SOURCES		+=	${RDN2_BASE}/rdn2_trusted_boot.c
+BL2_SOURCES		+=	${RDN2_BASE}/rdn2_trusted_boot.c
+endif
+
+ifeq (${CSS_SGI_PLATFORM_VARIANT}, 2)
+BL31_SOURCES	+=	drivers/arm/gic/v3/gic600_multichip.c
+
+# Enable dynamic addition of MMAP regions in BL31
+BL31_CFLAGS		+=	-DPLAT_XLAT_TABLES_DYNAMIC
+endif
+
+ifeq (${ENABLE_FEAT_RAS}-${HANDLE_EA_EL3_FIRST_NS},1-1)
+BL31_SOURCES		+=	${RDN2_BASE}/rdn2_ras.c			\
+				${CSS_ENT_BASE}/ras/sgi_ras_common.c	\
+				${CSS_ENT_BASE}/ras/sgi_ras_sram.c	\
+				${CSS_ENT_BASE}/ras/sgi_ras_cpu.c
+endif
+
+# Add the FDT_SOURCES and options for Dynamic Config
+FDT_SOURCES		+=	${RDN2_BASE}/fdts/${PLAT}_fw_config.dts	\
+				${RDN2_BASE}/fdts/${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		+=	${RDN2_BASE}/fdts/${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))
+
+override CTX_INCLUDE_AARCH32_REGS	:= 0
+override ENABLE_FEAT_AMU		:= 1
diff --git a/plat/arm/board/rdn2/rdn2_err.c b/plat/arm/board/rdn2/rdn2_err.c
new file mode 100644
index 0000000..802ac21
--- /dev/null
+++ b/plat/arm/board/rdn2/rdn2_err.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <plat/arm/common/plat_arm.h>
+
+/*
+ * rdn2 error handler
+ */
+void __dead2 plat_arm_error_handler(int err)
+{
+	while (1) {
+		wfi();
+	}
+}
diff --git a/plat/arm/board/rdn2/rdn2_plat.c b/plat/arm/board/rdn2/rdn2_plat.c
new file mode 100644
index 0000000..2a6c658
--- /dev/null
+++ b/plat/arm/board/rdn2/rdn2_plat.c
@@ -0,0 +1,182 @@
+/*
+ * Copyright (c) 2020-2023, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <drivers/arm/gic600_multichip.h>
+#include <plat/arm/common/plat_arm.h>
+#include <plat/common/platform.h>
+#include <services/el3_spmc_ffa_memory.h>
+#include <rdn2_ras.h>
+#include <sgi_soc_platform_def_v2.h>
+#include <sgi_plat.h>
+
+#if defined(IMAGE_BL31)
+#if (CSS_SGI_PLATFORM_VARIANT == 2)
+static const mmap_region_t rdn2mc_dynamic_mmap[] = {
+#if CSS_SGI_CHIP_COUNT > 1
+	ARM_MAP_SHARED_RAM_REMOTE_CHIP(1),
+	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(1),
+#endif
+#if CSS_SGI_CHIP_COUNT > 2
+	ARM_MAP_SHARED_RAM_REMOTE_CHIP(2),
+	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(2),
+#endif
+#if CSS_SGI_CHIP_COUNT > 3
+	ARM_MAP_SHARED_RAM_REMOTE_CHIP(3),
+	CSS_SGI_MAP_DEVICE_REMOTE_CHIP(3),
+#endif
+};
+#endif
+
+#if (CSS_SGI_PLATFORM_VARIANT == 2)
+static struct gic600_multichip_data rdn2mc_multichip_data __init = {
+	.rt_owner_base = PLAT_ARM_GICD_BASE,
+	.rt_owner = 0,
+	.chip_count = CSS_SGI_CHIP_COUNT,
+	.chip_addrs = {
+		PLAT_ARM_GICD_BASE >> 16,
+#if CSS_SGI_CHIP_COUNT > 1
+		(PLAT_ARM_GICD_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(1)) >> 16,
+#endif
+#if CSS_SGI_CHIP_COUNT > 2
+		(PLAT_ARM_GICD_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(2)) >> 16,
+#endif
+#if CSS_SGI_CHIP_COUNT > 3
+		(PLAT_ARM_GICD_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(3)) >> 16,
+#endif
+	},
+	.spi_ids = {
+		{PLAT_ARM_GICD_BASE, 32, 511},
+	#if CSS_SGI_CHIP_COUNT > 1
+		{PLAT_ARM_GICD_BASE, 512, 991},
+	#endif
+	#if CSS_SGI_CHIP_COUNT > 2
+		{PLAT_ARM_GICD_BASE, 4096, 4575},
+	#endif
+	#if CSS_SGI_CHIP_COUNT > 3
+		{PLAT_ARM_GICD_BASE, 4576, 5055},
+	#endif
+	}
+};
+#endif
+
+#if (CSS_SGI_PLATFORM_VARIANT == 2)
+static uintptr_t rdn2mc_multichip_gicr_frames[] = {
+	/* Chip 0's GICR Base */
+	PLAT_ARM_GICR_BASE,
+#if CSS_SGI_CHIP_COUNT > 1
+	/* Chip 1's GICR BASE */
+	PLAT_ARM_GICR_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(1),
+#endif
+#if CSS_SGI_CHIP_COUNT > 2
+	/* Chip 2's GICR BASE */
+	PLAT_ARM_GICR_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(2),
+#endif
+#if CSS_SGI_CHIP_COUNT > 3
+	/* Chip 3's GICR BASE */
+	PLAT_ARM_GICR_BASE + CSS_SGI_REMOTE_CHIP_MEM_OFFSET(3),
+#endif
+	UL(0)	/* Zero Termination */
+};
+#endif
+#endif /* IMAGE_BL31 */
+
+unsigned int plat_arm_sgi_get_platform_id(void)
+{
+	return mmio_read_32(SID_REG_BASE + SID_SYSTEM_ID_OFFSET)
+			    & SID_SYSTEM_ID_PART_NUM_MASK;
+}
+
+unsigned int plat_arm_sgi_get_config_id(void)
+{
+	return mmio_read_32(SID_REG_BASE + SID_SYSTEM_CFG_OFFSET);
+}
+
+unsigned int plat_arm_sgi_get_multi_chip_mode(void)
+{
+	return (mmio_read_32(SID_REG_BASE + SID_NODE_ID_OFFSET) &
+			     SID_MULTI_CHIP_MODE_MASK) >>
+			     SID_MULTI_CHIP_MODE_SHIFT;
+}
+
+#if defined(IMAGE_BL31)
+void bl31_platform_setup(void)
+{
+#if (CSS_SGI_PLATFORM_VARIANT == 2)
+	int ret;
+	unsigned int i;
+
+	if (plat_arm_sgi_get_multi_chip_mode() == 0) {
+		ERROR("Chip Count is set to %u but multi-chip mode is not "
+			"enabled\n", CSS_SGI_CHIP_COUNT);
+		panic();
+	} else {
+		INFO("Enabling multi-chip support for RD-N2 variant\n");
+
+		for (i = 0; i < ARRAY_SIZE(rdn2mc_dynamic_mmap); i++) {
+			ret = mmap_add_dynamic_region(
+					rdn2mc_dynamic_mmap[i].base_pa,
+					rdn2mc_dynamic_mmap[i].base_va,
+					rdn2mc_dynamic_mmap[i].size,
+					rdn2mc_dynamic_mmap[i].attr);
+			if (ret != 0) {
+				ERROR("Failed to add dynamic mmap entry for"
+					" i: %d " "(ret=%d)\n", i, ret);
+				panic();
+			}
+		}
+
+		plat_arm_override_gicr_frames(
+			rdn2mc_multichip_gicr_frames);
+		gic600_multichip_init(&rdn2mc_multichip_data);
+	}
+#endif
+
+	sgi_bl31_common_platform_setup();
+
+#if ENABLE_FEAT_RAS && FFH_SUPPORT
+	sgi_ras_platform_setup(&ras_config);
+#endif
+}
+#endif /* IMAGE_BL31 */
+
+#if SPMC_AT_EL3
+
+#define DATASTORE_SIZE 1024
+
+__section("arm_el3_tzc_dram") uint8_t plat_spmc_shmem_datastore[DATASTORE_SIZE];
+
+int plat_spmc_shmem_datastore_get(uint8_t **datastore, size_t *size)
+{
+	*datastore = plat_spmc_shmem_datastore;
+	*size = DATASTORE_SIZE;
+	return 0;
+}
+
+/*
+ * Add dummy implementations of memory management related platform hooks.
+ * Memory share/lend operation are not required on RdN2 platform.
+ */
+int plat_spmc_shmem_begin(struct ffa_mtd *desc)
+{
+	return 0;
+}
+
+int plat_spmc_shmem_reclaim(struct ffa_mtd *desc)
+{
+	return 0;
+}
+
+int plat_spmd_handle_group0_interrupt(uint32_t intid)
+{
+	/*
+	 * As of now, there are no sources of Group0 secure interrupt enabled
+	 * for RDN2.
+	 */
+	(void)intid;
+	return -1;
+}
+#endif
diff --git a/plat/arm/board/rdn2/rdn2_ras.c b/plat/arm/board/rdn2/rdn2_ras.c
new file mode 100644
index 0000000..3aed58e
--- /dev/null
+++ b/plat/arm/board/rdn2/rdn2_ras.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2023, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform_def.h>
+#include <sgi_ras.h>
+#include <sgi_sdei.h>
+
+struct sgi_ras_ev_map plat_ras_map[] = {
+	/* Non Secure base RAM ECC CE interrupt */
+	{SGI_SDEI_DS_EVENT_0, NS_RAM_ECC_CE_INT, SGI_RAS_INTR_TYPE_SPI},
+
+	/* Non Secure base RAM ECC UE interrupt */
+	{SGI_SDEI_DS_EVENT_0, NS_RAM_ECC_UE_INT, SGI_RAS_INTR_TYPE_SPI},
+
+	/* CPU 1-bit ECC CE error interrupt */
+	{SGI_SDEI_DS_EVENT_1, PLAT_CORE_FAULT_IRQ, SGI_RAS_INTR_TYPE_PPI}
+};
+
+/* RAS error record list definition, used by the common RAS framework. */
+struct err_record_info plat_err_records[] = {
+	/* Base element RAM Non-secure error record. */
+	ERR_RECORD_MEMMAP_V1(SOC_NS_RAM_ERR_REC_BASE, 4, NULL,
+				&sgi_ras_sram_intr_handler, 0),
+	ERR_RECORD_SYSREG_V1(0, 1, NULL, &sgi_ras_cpu_intr_handler, 0),
+};
+
+/* RAS error interrupt list definition, used by the common RAS framework. */
+struct ras_interrupt plat_ras_interrupts[] = {
+	{
+		.intr_number = PLAT_CORE_FAULT_IRQ,
+		.err_record = &plat_err_records[1],
+	}, {
+		.intr_number = NS_RAM_ECC_CE_INT,
+		.err_record = &plat_err_records[0],
+	}, {
+		.intr_number = NS_RAM_ECC_UE_INT,
+		.err_record = &plat_err_records[0],
+	},
+};
+
+/* Registers the RAS error record list with common RAS framework. */
+REGISTER_ERR_RECORD_INFO(plat_err_records);
+/* Registers the RAS error interrupt info list with common RAS framework. */
+REGISTER_RAS_INTERRUPTS(plat_ras_interrupts);
+
+/* Platform RAS handling config data definition */
+struct plat_sgi_ras_config ras_config = {
+	plat_ras_map,
+	ARRAY_SIZE(plat_ras_map)
+};
diff --git a/plat/arm/board/rdn2/rdn2_security.c b/plat/arm/board/rdn2/rdn2_security.c
new file mode 100644
index 0000000..7cd4a1c
--- /dev/null
+++ b/plat/arm/board/rdn2/rdn2_security.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2020-2021, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <plat/arm/common/plat_arm.h>
+#include <platform_def.h>
+
+#define RDN2_TZC_CPER_REGION					\
+	{CSS_SGI_SP_CPER_BUF_BASE, (CSS_SGI_SP_CPER_BUF_BASE +	\
+	CSS_SGI_SP_CPER_BUF_SIZE) - 1, TZC_REGION_S_NONE,	\
+	PLAT_ARM_TZC_NS_DEV_ACCESS}
+
+static const arm_tzc_regions_info_t tzc_regions[] = {
+	ARM_TZC_REGIONS_DEF,
+#if ENABLE_FEAT_RAS && FFH_SUPPORT
+	RDN2_TZC_CPER_REGION,
+#endif
+	{}
+};
+
+#if (CSS_SGI_PLATFORM_VARIANT == 2 && CSS_SGI_CHIP_COUNT > 1)
+static const arm_tzc_regions_info_t tzc_regions_mc[][CSS_SGI_CHIP_COUNT - 1] = {
+	{
+		/* TZC memory regions for second chip */
+		SGI_PLAT_TZC_NS_REMOTE_REGIONS_DEF(1),
+		{}
+	},
+#if CSS_SGI_CHIP_COUNT > 2
+	{
+		/* TZC memory regions for third chip */
+		SGI_PLAT_TZC_NS_REMOTE_REGIONS_DEF(2),
+		{}
+	},
+#endif
+#if CSS_SGI_CHIP_COUNT > 3
+	{
+		/* TZC memory regions for fourth chip */
+		SGI_PLAT_TZC_NS_REMOTE_REGIONS_DEF(3),
+		{}
+	},
+#endif
+};
+#endif /* CSS_SGI_PLATFORM_VARIANT && CSS_SGI_CHIP_COUNT */
+
+/* Initialize the secure environment */
+void plat_arm_security_setup(void)
+{
+	unsigned int i;
+
+	INFO("Configuring TrustZone Controller for Chip 0\n");
+
+	for (i = 0; i < TZC400_COUNT; i++) {
+		arm_tzc400_setup(TZC400_BASE(i), tzc_regions);
+	}
+
+#if (CSS_SGI_PLATFORM_VARIANT == 2 && CSS_SGI_CHIP_COUNT > 1)
+	unsigned int j;
+
+	for (i = 1; i < CSS_SGI_CHIP_COUNT; i++) {
+		INFO("Configuring TrustZone Controller for Chip %u\n", i);
+
+		for (j = 0; j < TZC400_COUNT; j++) {
+			arm_tzc400_setup(CSS_SGI_REMOTE_CHIP_MEM_OFFSET(i)
+				+ TZC400_BASE(j), tzc_regions_mc[i-1]);
+		}
+	}
+#endif
+}
diff --git a/plat/arm/board/rdn2/rdn2_topology.c b/plat/arm/board/rdn2/rdn2_topology.c
new file mode 100644
index 0000000..24acc4d
--- /dev/null
+++ b/plat/arm/board/rdn2/rdn2_topology.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2020-2023, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <plat/arm/common/plat_arm.h>
+#include <plat/arm/css/common/css_pm.h>
+
+/******************************************************************************
+ * The power domain tree descriptor.
+ ******************************************************************************/
+const unsigned char rd_n2_pd_tree_desc[] = {
+	(PLAT_ARM_CLUSTER_COUNT) * (CSS_SGI_CHIP_COUNT),
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+#if (PLAT_ARM_CLUSTER_COUNT > 4 || \
+	(CSS_SGI_PLATFORM_VARIANT == 2 && CSS_SGI_CHIP_COUNT > 1))
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+#endif
+#if (PLAT_ARM_CLUSTER_COUNT > 8 || \
+	(CSS_SGI_PLATFORM_VARIANT == 2 && CSS_SGI_CHIP_COUNT > 2))
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+#endif
+#if (PLAT_ARM_CLUSTER_COUNT > 8 || \
+	(CSS_SGI_PLATFORM_VARIANT == 2 && CSS_SGI_CHIP_COUNT > 3))
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+	CSS_SGI_MAX_CPUS_PER_CLUSTER,
+#endif
+};
+
+/*******************************************************************************
+ * This function returns the topology tree information.
+ ******************************************************************************/
+const unsigned char *plat_get_power_domain_tree_desc(void)
+{
+	return rd_n2_pd_tree_desc;
+}
+
+/*******************************************************************************
+ * The array mapping platform core position (implemented by plat_my_core_pos())
+ * to the SCMI power domain ID implemented by SCP.
+ ******************************************************************************/
+#if (CSS_SGI_PLATFORM_VARIANT == 2)
+const uint32_t plat_css_core_pos_to_scmi_dmn_id_map[] = {
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x0)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x1)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x2)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x3)),
+#if (CSS_SGI_CHIP_COUNT > 1)
+	(SET_SCMI_CHANNEL_ID(0x1) | SET_SCMI_DOMAIN_ID(0x0)),
+	(SET_SCMI_CHANNEL_ID(0x1) | SET_SCMI_DOMAIN_ID(0x1)),
+	(SET_SCMI_CHANNEL_ID(0x1) | SET_SCMI_DOMAIN_ID(0x2)),
+	(SET_SCMI_CHANNEL_ID(0x1) | SET_SCMI_DOMAIN_ID(0x3)),
+#endif
+#if (CSS_SGI_CHIP_COUNT > 2)
+	(SET_SCMI_CHANNEL_ID(0x2) | SET_SCMI_DOMAIN_ID(0x0)),
+	(SET_SCMI_CHANNEL_ID(0x2) | SET_SCMI_DOMAIN_ID(0x1)),
+	(SET_SCMI_CHANNEL_ID(0x2) | SET_SCMI_DOMAIN_ID(0x2)),
+	(SET_SCMI_CHANNEL_ID(0x2) | SET_SCMI_DOMAIN_ID(0x3)),
+#endif
+#if (CSS_SGI_CHIP_COUNT > 3)
+	(SET_SCMI_CHANNEL_ID(0x3) | SET_SCMI_DOMAIN_ID(0x0)),
+	(SET_SCMI_CHANNEL_ID(0x3) | SET_SCMI_DOMAIN_ID(0x1)),
+	(SET_SCMI_CHANNEL_ID(0x3) | SET_SCMI_DOMAIN_ID(0x2)),
+	(SET_SCMI_CHANNEL_ID(0x3) | SET_SCMI_DOMAIN_ID(0x3)),
+#endif
+};
+#else
+const uint32_t plat_css_core_pos_to_scmi_dmn_id_map[] = {
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x0)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x1)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x2)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x3)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x4)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x5)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x6)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x7)),
+#if (PLAT_ARM_CLUSTER_COUNT > 8)
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x8)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0x9)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0xA)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0xB)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0xC)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0xD)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0xE)),
+	(SET_SCMI_CHANNEL_ID(0x0) | SET_SCMI_DOMAIN_ID(0xF)),
+#endif
+};
+#endif
diff --git a/plat/arm/board/rdn2/rdn2_trusted_boot.c b/plat/arm/board/rdn2/rdn2_trusted_boot.c
new file mode 100644
index 0000000..4592b8f
--- /dev/null
+++ b/plat/arm/board/rdn2/rdn2_trusted_boot.c
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2020, Arm Limited. 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);
+}