Resguardo inicial

2026-09-06 12:53:21 -06:00
parent 662efe3c2a
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+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * SMP support: Entry point for secondary CPUs
+ *
+ * Copyright (C) 2012 Marvell
+ *
+ * Yehuda Yitschak <yehuday@marvell.com>
+ * Gregory CLEMENT <gregory.clement@free-electrons.com>
+ * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ *
+ * This file implements the assembly entry point for secondary CPUs in
+ * an SMP kernel. The only thing we need to do is to add the CPU to
+ * the coherency fabric by writing to 2 registers. Currently the base
+ * register addresses are hard coded due to the early initialisation
+ * problems.
+ */
+
+#include <linux/linkage.h>
+#include <linux/init.h>
+
+#include <asm/assembler.h>
+
+/*
+ * Armada XP specific entry point for secondary CPUs.
+ * We add the CPU to the coherency fabric and then jump to secondary
+ * startup
+ */
+ENTRY(armada_xp_secondary_startup)
+ ARM_BE8(setend	be )			@ go BE8 if entered LE
+
+	bl	ll_add_cpu_to_smp_group
+
+	bl	ll_enable_coherency
+
+	b	secondary_startup
+
+ENDPROC(armada_xp_secondary_startup)