Merge "feat(cpus): add support for arcadia cpu" into integration

include/lib/cpus/aarch64/cortex_arcadia.h

@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2024, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CORTEX_ARCADIA_H
+#define CORTEX_ARCADIA_H
+
+#define CORTEX_ARCADIA_MIDR					U(0x410FD8F0)
+
+/*******************************************************************************
+ * CPU Extended Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_ARCADIA_CPUECTLR_EL1				S3_0_C15_C1_4
+#define CORTEX_ARCADIA_CPUECTLR_EL1_EXTLLC_BIT			U(0)
+
+/*******************************************************************************
+ * CPU Power Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_ARCADIA_CPUPWRCTLR_EL1				S3_0_C15_C2_7
+#define CORTEX_ARCADIA_CPUPWRCTLR_EL1_CORE_PWRDN_BIT		U(1)
+
+#endif /* CORTEX_ARCADIA_H */

lib/cpus/aarch64/cortex_arcadia.S

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2024, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <common/bl_common.h>
+#include <cortex_arcadia.h>
+#include <cpu_macros.S>
+#include <plat_macros.S>
+
+/* Hardware handled coherency */
+#if HW_ASSISTED_COHERENCY == 0
+#error "Cortex-ARCADIA must be compiled with HW_ASSISTED_COHERENCY enabled"
+#endif
+
+/* 64-bit only core */
+#if CTX_INCLUDE_AARCH32_REGS == 1
+#error "Cortex-ARCADIA supports only AArch64. Compile with CTX_INCLUDE_AARCH32_REGS=0"
+#endif
+
+cpu_reset_func_start cortex_arcadia
+	/* Disable speculative loads */
+	msr	SSBS, xzr
+cpu_reset_func_end cortex_arcadia
+
+	/* ----------------------------------------------------
+	 * HW will do the cache maintenance while powering down
+	 * ----------------------------------------------------
+	 */
+func cortex_arcadia_core_pwr_dwn
+	/* ---------------------------------------------------
+	 * Enable CPU power down bit in power control register
+	 * ---------------------------------------------------
+	 */
+	sysreg_bit_set CORTEX_ARCADIA_CPUPWRCTLR_EL1, CORTEX_ARCADIA_CPUPWRCTLR_EL1_CORE_PWRDN_BIT
+	isb
+	ret
+endfunc cortex_arcadia_core_pwr_dwn
+
+	/* ---------------------------------------------
+	 * This function provides Cortex-Arcadia specific
+	 * register information for crash reporting.
+	 * It needs to return with x6 pointing to
+	 * a list of register names in ascii and
+	 * x8 - x15 having values of registers to be
+	 * reported.
+	 * ---------------------------------------------
+	 */
+.section .rodata.cortex_arcadia_regs, "aS"
+cortex_arcadia_regs:  /* The ascii list of register names to be reported */
+	.asciz	"cpuectlr_el1", ""
+
+func cortex_arcadia_cpu_reg_dump
+	adr	x6, cortex_arcadia_regs
+	mrs	x8, CORTEX_ARCADIA_CPUECTLR_EL1
+	ret
+endfunc cortex_arcadia_cpu_reg_dump
+
+declare_cpu_ops cortex_arcadia, CORTEX_ARCADIA_MIDR, \
+	cortex_arcadia_reset_func, \
+	cortex_arcadia_core_pwr_dwn

plat/arm/board/fvp/platform.mk

@@ -214,7 +214,8 @@ ifeq (${BUILD_CPUS_WITH_NO_FVP_MODEL},1)
 	FVP_CPU_LIBS    +=	lib/cpus/aarch64/neoverse_n3.S		\
 				lib/cpus/aarch64/cortex_gelas.S		\
 				lib/cpus/aarch64/nevis.S		\
-				lib/cpus/aarch64/travis.S
+				lib/cpus/aarch64/travis.S		\
+				lib/cpus/aarch64/cortex_arcadia.S
 endif
 
 else