Add Cortex_A78C CPU lib
Add basic support for Cortex_A78C CPU.
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Id9e41cbe0580a68c6412d194a5ee67940e8dae56
diff --git a/include/lib/cpus/aarch64/cortex_a78c.h b/include/lib/cpus/aarch64/cortex_a78c.h
new file mode 100644
index 0000000..adb13bc
--- /dev/null
+++ b/include/lib/cpus/aarch64/cortex_a78c.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2021, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef CORTEX_A78C_H
+#define CORTEX_A78C_H
+
+
+#define CORTEX_A78C_MIDR U(0x410FD4B1)
+
+/*******************************************************************************
+ * CPU Extended Control register specific definitions.
+ ******************************************************************************/
+#define CORTEX_A78C_CPUECTLR_EL1 S3_0_C15_C1_4
+
+/*******************************************************************************
+ * CPU Power Control register specific definitions
+ ******************************************************************************/
+#define CORTEX_A78C_CPUPWRCTLR_EL1 S3_0_C15_C2_7
+#define CORTEX_A78C_CPUPWRCTLR_EL1_CORE_PWRDN_EN_BIT U(1)
+
+#endif /* CORTEX_A78C_H */
diff --git a/lib/cpus/aarch64/cortex_a78c.S b/lib/cpus/aarch64/cortex_a78c.S
new file mode 100644
index 0000000..1b170fe
--- /dev/null
+++ b/lib/cpus/aarch64/cortex_a78c.S
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2021, 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_a78c.h>
+#include <cpu_macros.S>
+#include <plat_macros.S>
+
+/* Hardware handled coherency */
+#if HW_ASSISTED_COHERENCY == 0
+#error "cortex_a78c must be compiled with HW_ASSISTED_COHERENCY enabled"
+#endif
+
+ /* ----------------------------------------------------
+ * HW will do the cache maintenance while powering down
+ * ----------------------------------------------------
+ */
+func cortex_a78c_core_pwr_dwn
+ /* ---------------------------------------------------
+ * Enable CPU power down bit in power control register
+ * ---------------------------------------------------
+ */
+ mrs x0, CORTEX_A78C_CPUPWRCTLR_EL1
+ orr x0, x0, #CORTEX_A78C_CPUPWRCTLR_EL1_CORE_PWRDN_EN_BIT
+ msr CORTEX_A78C_CPUPWRCTLR_EL1, x0
+ isb
+ ret
+endfunc cortex_a78c_core_pwr_dwn
+
+#if REPORT_ERRATA
+/*
+ * Errata printing function for Cortex A78C. Must follow AAPCS.
+ */
+func cortex_a78c_errata_report
+ ret
+endfunc cortex_a78c_errata_report
+#endif
+
+ /* ---------------------------------------------
+ * This function provides cortex_a78c 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_a78c_regs, "aS"
+cortex_a78c_regs: /* The ascii list of register names to be reported */
+ .asciz "cpuectlr_el1", ""
+
+func cortex_a78c_cpu_reg_dump
+ adr x6, cortex_a78c_regs
+ mrs x8, CORTEX_A78C_CPUECTLR_EL1
+ ret
+endfunc cortex_a78c_cpu_reg_dump
+
+declare_cpu_ops cortex_a78c, CORTEX_A78C_MIDR, \
+ CPU_NO_RESET_FUNC, \
+ cortex_a78c_core_pwr_dwn
diff --git a/plat/arm/board/arm_fpga/platform.mk b/plat/arm/board/arm_fpga/platform.mk
index 3a5f74d..7ce4ba3 100644
--- a/plat/arm/board/arm_fpga/platform.mk
+++ b/plat/arm/board/arm_fpga/platform.mk
@@ -70,7 +70,8 @@
lib/cpus/aarch64/cortex_klein.S \
lib/cpus/aarch64/cortex_matterhorn.S \
lib/cpus/aarch64/cortex_makalu.S \
- lib/cpus/aarch64/cortex_makalu_elp.S
+ lib/cpus/aarch64/cortex_makalu_elp.S \
+ lib/cpus/aarch64/cortex_a78c.S
# AArch64/AArch32 cores
FPGA_CPU_LIBS += lib/cpus/aarch64/cortex_a55.S \
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index 53145f2..20d80ed 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -136,7 +136,8 @@
lib/cpus/aarch64/cortex_makalu.S \
lib/cpus/aarch64/cortex_makalu_elp.S \
lib/cpus/aarch64/cortex_a65.S \
- lib/cpus/aarch64/cortex_a65ae.S
+ lib/cpus/aarch64/cortex_a65ae.S \
+ lib/cpus/aarch64/cortex_a78c.S
endif
# AArch64/AArch32 cores
FVP_CPU_LIBS += lib/cpus/aarch64/cortex_a55.S \