refactor(sgi): move from "sgi" to "neoverse_rd"

Currently, reference design platforms such as RD-N2, RD-N1-Edge,
RD-V1-MC, RD-V1 and SGI-575 utilize "css/sgi" as the common source
directory. The "sgi" prefix originated from the System Guidance for
Infrastructure (SGI) and was initially associated with the SGI-575
platform. However, subsequent platforms released were under the Neoverse
Reference Design product name.

To align with the Neoverse Reference Design nomenclature, rename the
common source directory from "css/sgi" to "css/neoverse_rd" and update
all file prefixes from "sgi" to "nrd."

Signed-off-by: Rohit Mathew <Rohit.Mathew@arm.com>
Change-Id: I3dcbb31b9ab202e82caf25218ba33c520dcea4e4
diff --git a/plat/arm/css/neoverse_rd/include/nrd_soc_css_def_v2.h b/plat/arm/css/neoverse_rd/include/nrd_soc_css_def_v2.h
new file mode 100644
index 0000000..81cbdf4
--- /dev/null
+++ b/plat/arm/css/neoverse_rd/include/nrd_soc_css_def_v2.h
@@ -0,0 +1,207 @@
+/*
+ * Copyright (c) 2021-2024, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef NRD_SOC_CSS_DEF_V2_H
+#define NRD_SOC_CSS_DEF_V2_H
+
+#include <lib/utils_def.h>
+#include <plat/common/common_def.h>
+
+/*
+ * Definitions common to all ARM CSS SoCs
+ */
+
+/* Following covers ARM CSS SoC Peripherals */
+
+#define SOC_SYSTEM_PERIPH_BASE		UL(0x0C000000)
+#define SOC_SYSTEM_PERIPH_SIZE		UL(0x02000000)
+
+#define SOC_PLATFORM_PERIPH_BASE	UL(0x0E000000)
+#define SOC_PLATFORM_PERIPH_SIZE	UL(0x02000000)
+
+#define SOC_CSS_PCIE_CONTROL_BASE	UL(0x0ef20000)
+
+/* Memory controller */
+#define SOC_MEMCNTRL_BASE		UL(0x10000000)
+#define SOC_MEMCNTRL_SIZE		UL(0x10000000)
+
+/* SoC NIC-400 Global Programmers View (GPV) */
+#define SOC_CSS_NIC400_BASE		UL(0x0ED00000)
+
+#define SOC_CSS_NIC400_USB_EHCI		U(0)
+#define SOC_CSS_NIC400_TLX_MASTER	U(1)
+#define SOC_CSS_NIC400_USB_OHCI		U(2)
+#define SOC_CSS_NIC400_PL354_SMC	U(3)
+/*
+ * The apb4_bridge controls access to:
+ *   - the PCIe configuration registers
+ *   - the MMU units for USB, HDLCD and DMA
+ */
+#define SOC_CSS_NIC400_APB4_BRIDGE	U(4)
+
+/* Non-volatile counters */
+#define SOC_TRUSTED_NVCTR_BASE		UL(0x0EE70000)
+#define TFW_NVCTR_BASE			(SOC_TRUSTED_NVCTR_BASE + 0x0000)
+#define TFW_NVCTR_SIZE			U(4)
+#define NTFW_CTR_BASE			(SOC_TRUSTED_NVCTR_BASE + 0x0004)
+#define NTFW_CTR_SIZE			U(4)
+
+/* Keys */
+#define SOC_KEYS_BASE			UL(0x0EE80000)
+#define TZ_PUB_KEY_HASH_BASE		(SOC_KEYS_BASE + 0x0000)
+#define TZ_PUB_KEY_HASH_SIZE		U(32)
+#define HU_KEY_BASE			(SOC_KEYS_BASE + 0x0020)
+#define HU_KEY_SIZE			U(16)
+#define END_KEY_BASE			(SOC_KEYS_BASE + 0x0044)
+#define END_KEY_SIZE			U(32)
+
+/* Base Element RAM error definitions */
+#define SOC_NS_RAM_ERR_REC_BASE		UL(0x2A4C0000)
+#define NS_RAM_ECC_CE_INT		U(87)
+#define NS_RAM_ECC_UE_INT		U(88)
+
+#define SOC_PLATFORM_PERIPH_MAP_DEVICE	MAP_REGION_FLAT(			\
+						SOC_PLATFORM_PERIPH_BASE, 	\
+						SOC_PLATFORM_PERIPH_SIZE, 	\
+						MT_DEVICE | MT_RW | MT_SECURE)
+
+#if SPM_MM
+/*
+ * Memory map definition for the platform peripheral memory region that is
+ * accessible from S-EL0 (with secure user mode access).
+ */
+#define SOC_PLATFORM_PERIPH_MAP_DEVICE_USER				       \
+		MAP_REGION_FLAT(					       \
+			SOC_PLATFORM_PERIPH_BASE,			       \
+			SOC_PLATFORM_PERIPH_SIZE,			       \
+			MT_DEVICE | MT_RW | MT_SECURE | MT_USER)
+#endif
+
+#define SOC_SYSTEM_PERIPH_MAP_DEVICE	MAP_REGION_FLAT(			\
+						SOC_SYSTEM_PERIPH_BASE,		\
+						SOC_SYSTEM_PERIPH_SIZE,		\
+						MT_DEVICE | MT_RW | MT_SECURE)
+
+#define SOC_MEMCNTRL_MAP_DEVICE		MAP_REGION_FLAT(			\
+						SOC_MEMCNTRL_BASE,		\
+						SOC_MEMCNTRL_SIZE,		\
+						MT_DEVICE | MT_RW | MT_SECURE)
+
+#define SOC_MEMCNTRL_MAP_DEVICE_REMOTE_CHIP(n)					\
+		MAP_REGION_FLAT(						\
+			CSS_SGI_REMOTE_CHIP_MEM_OFFSET(n) + SOC_MEMCNTRL_BASE,	\
+			SOC_MEMCNTRL_SIZE,					\
+			MT_DEVICE | MT_RW | MT_SECURE)
+
+/*
+ * The bootsec_bridge controls access to a bunch of peripherals, e.g. the UARTs.
+ */
+#define SOC_CSS_NIC400_BOOTSEC_BRIDGE		U(5)
+#define SOC_CSS_NIC400_BOOTSEC_BRIDGE_UART1	UL(1 << 12)
+
+/*
+ * Required platform porting definitions common to all ARM CSS SoCs
+ */
+/* 2MB used for SCP DDR retraining */
+#define PLAT_ARM_SCP_TZC_DRAM1_SIZE	UL(0x00200000)
+
+/* V2M motherboard system registers & offsets */
+#define V2M_SYSREGS_BASE		UL(0x0C010000)
+#define V2M_SYS_LED			U(0x8)
+
+/*
+ * V2M sysled bit definitions. The values written to this
+ * register are defined in arch.h & runtime_svc.h. Only
+ * used by the primary cpu to diagnose any cold boot issues.
+ *
+ * SYS_LED[0]   - Security state (S=0/NS=1)
+ * SYS_LED[2:1] - Exception Level (EL3-EL0)
+ * SYS_LED[7:3] - Exception Class (Sync/Async & origin)
+ *
+ */
+#define V2M_SYS_LED_SS_SHIFT		U(0)
+#define V2M_SYS_LED_EL_SHIFT		U(1)
+#define V2M_SYS_LED_EC_SHIFT		U(3)
+
+#define V2M_SYS_LED_SS_MASK		U(0x01)
+#define V2M_SYS_LED_EL_MASK		U(0x03)
+#define V2M_SYS_LED_EC_MASK		U(0x1f)
+
+/* NOR Flash */
+#define V2M_FLASH0_BASE			UL(0x08000000)
+#define V2M_FLASH0_SIZE			UL(0x04000000)
+#define V2M_FLASH_BLOCK_SIZE		UL(0x00040000)	/* 256 KB */
+
+/*
+ * The flash can be mapped either as read-only or read-write.
+ *
+ * If it is read-write then it should also be mapped as device memory because
+ * NOR flash programming involves sending a fixed, ordered sequence of commands.
+ *
+ * If it is read-only then it should also be mapped as:
+ * - Normal memory, because reading from NOR flash is transparent, it is like
+ *   reading from RAM.
+ * - Non-executable by default. If some parts of the flash need to be executable
+ *   then platform code is responsible for re-mapping the appropriate portion
+ *   of it as executable.
+ */
+#define V2M_MAP_FLASH0_RW		MAP_REGION_FLAT(V2M_FLASH0_BASE,\
+						V2M_FLASH0_SIZE,	\
+						MT_DEVICE | MT_RW | MT_SECURE)
+
+#define V2M_MAP_FLASH0_RO		MAP_REGION_FLAT(V2M_FLASH0_BASE,\
+						V2M_FLASH0_SIZE,	\
+						MT_RO_DATA | MT_SECURE)
+
+#define SGI_MAP_FLASH0_RO		MAP_REGION_FLAT(V2M_FLASH0_BASE,\
+						V2M_FLASH0_SIZE,	\
+						MT_DEVICE | MT_RO | MT_SECURE)
+
+/* Platform ID address */
+#define BOARD_CSS_PLAT_ID_REG_ADDR		UL(0x0EFE00E0)
+
+/* Platform ID related accessors */
+#define BOARD_CSS_PLAT_ID_REG_ID_MASK		U(0x0F)
+#define BOARD_CSS_PLAT_ID_REG_ID_SHIFT		U(0x00)
+#define BOARD_CSS_PLAT_ID_REG_VERSION_MASK	U(0xF00)
+#define BOARD_CSS_PLAT_ID_REG_VERSION_SHIFT	U(0x08)
+#define BOARD_CSS_PLAT_TYPE_RTL			U(0x00)
+#define BOARD_CSS_PLAT_TYPE_FPGA		U(0x01)
+#define BOARD_CSS_PLAT_TYPE_EMULATOR		U(0x02)
+#define BOARD_CSS_PLAT_TYPE_FVP			U(0x03)
+
+#ifndef __ASSEMBLER__
+
+#include <lib/mmio.h>
+
+#define BOARD_CSS_GET_PLAT_TYPE(addr)					\
+	((mmio_read_32(addr) & BOARD_CSS_PLAT_ID_REG_ID_MASK)		\
+	>> BOARD_CSS_PLAT_ID_REG_ID_SHIFT)
+
+#endif /* __ASSEMBLER__ */
+
+
+#define MAX_IO_DEVICES			U(3)
+#define MAX_IO_HANDLES			U(4)
+
+/* Reserve the last block of flash for PSCI MEM PROTECT flag */
+#define PLAT_ARM_FLASH_IMAGE_BASE	V2M_FLASH0_BASE
+#define PLAT_ARM_FLASH_IMAGE_MAX_SIZE	(V2M_FLASH0_SIZE - V2M_FLASH_BLOCK_SIZE)
+
+#if ARM_GPT_SUPPORT
+/*
+ * Offset of the FIP in the GPT image. BL1 component uses this option
+ * as it does not load the partition table to get the FIP base
+ * address. At sector 34 by default (i.e. after reserved sectors 0-33)
+ * Offset = 34 * 512(sector size) = 17408 i.e. 0x4400
+ */
+#define PLAT_ARM_FIP_OFFSET_IN_GPT		0x4400
+#endif /* ARM_GPT_SUPPORT */
+
+#define PLAT_ARM_NVM_BASE		V2M_FLASH0_BASE
+#define PLAT_ARM_NVM_SIZE		(V2M_FLASH0_SIZE - V2M_FLASH_BLOCK_SIZE)
+
+#endif /* NRD_SOC_CSS_DEF_V2_H */