Add initial CPU support for Cortex-Helios
Change-Id: Ic0486131c493632eadf329f80b0b5904aed5e4ef
Signed-off-by: Joel Hutton <joel.hutton@arm.com>
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
diff --git a/lib/cpus/aarch64/cortex_helios.S b/lib/cpus/aarch64/cortex_helios.S
new file mode 100644
index 0000000..bcda741
--- /dev/null
+++ b/lib/cpus/aarch64/cortex_helios.S
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#include <arch.h>
+#include <asm_macros.S>
+#include <bl_common.h>
+#include <cortex_helios.h>
+#include <cpu_macros.S>
+#include <debug.h>
+#include <plat_macros.S>
+
+func cortex_helios_cpu_pwr_dwn
+ mrs x0, CORTEX_HELIOS_CPUPWRCTLR_EL1
+ orr x0, x0, #CORTEX_HELIOS_CPUPWRCTLR_EL1_CORE_PWRDN_BIT
+ msr CORTEX_HELIOS_CPUPWRCTLR_EL1, x0
+ isb
+ ret
+endfunc cortex_helios_cpu_pwr_dwn
+
+.section .rodata.cortex_helios_regs, "aS"
+cortex_helios_regs: /* The ascii list of register names to be reported */
+ .asciz "cpuectlr_el1", ""
+
+func cortex_helios_cpu_reg_dump
+ adr x6, cortex_helios_regs
+ mrs x8, CORTEX_HELIOS_ECTLR_EL1
+ ret
+endfunc cortex_helios_cpu_reg_dump
+
+declare_cpu_ops cortex_helios, CORTEX_HELIOS_MIDR, \
+ CPU_NO_RESET_FUNC, \
+ cortex_helios_cpu_pwr_dwn