1 files changed, 43 insertions, 0 deletions
diff --git a/plat/aspeed/ast2700/plat_topology.c b/plat/aspeed/ast2700/plat_topology.c
new file mode 100644
index 0000000..1476fba
--- /dev/null
+++ b/plat/aspeed/ast2700/plat_topology.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2023, Aspeed Technology Inc.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <lib/psci/psci.h>
+#include <platform_def.h>
+
+static const unsigned char ast2700_power_domain_tree_desc[] = {
+	PLATFORM_SYSTEM_COUNT,
+	PLATFORM_CORE_COUNT_PER_CLUSTER,
+};
+
+const unsigned char *plat_get_power_domain_tree_desc(void)
+{
+	return ast2700_power_domain_tree_desc;
+}
+
+unsigned int plat_core_pos_by_mpidr(u_register_t mpidr)
+{
+	unsigned int cluster_id, cpu_id;
+
+	mpidr &= MPIDR_AFFINITY_MASK;
+
+	if (mpidr & ~(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)) {
+		return -1;
+	}
+
+	cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
+	cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK;
+
+	if (cluster_id >= PLATFORM_CLUSTER_COUNT) {
+		return -1;
+	}
+
+	if (cpu_id >= PLATFORM_CORE_COUNT_PER_CLUSTER) {
+		return -1;
+	}
+
+	return (cluster_id * PLATFORM_CORE_COUNT_PER_CLUSTER) + cpu_id;
+}