GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/trusted-firmware/trusted-firmware-a-2.8/plat/rockchip/common/plat_topology.c

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2013-2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform_def.h>
+
+#include <arch.h>
+#include <lib/psci/psci.h>
+
+#include <plat_private.h>
+
+/*******************************************************************************
+ * This function returns the RockChip default topology tree information.
+ ******************************************************************************/
+const unsigned char *plat_get_power_domain_tree_desc(void)
+{
+	return rockchip_power_domain_tree_desc;
+}
+
+int plat_core_pos_by_mpidr(u_register_t mpidr)
+{
+	unsigned int cluster_id, cpu_id;
+
+	cpu_id = mpidr & MPIDR_AFFLVL_MASK;
+#ifdef PLAT_RK_MPIDR_CLUSTER_MASK
+	cluster_id = mpidr & PLAT_RK_MPIDR_CLUSTER_MASK;
+#else
+	cluster_id = mpidr & MPIDR_CLUSTER_MASK;
+#endif
+
+	cpu_id += (cluster_id >> PLAT_RK_CLST_TO_CPUID_SHIFT);
+
+	if (cpu_id >= PLATFORM_CORE_COUNT)
+		return -1;
+
+	return cpu_id;
+}