plat/marvell/a8k/common/aarch64/plat_arch_config.c

/*
 * Copyright (C) 2018 Marvell International Ltd.
 *
 * SPDX-License-Identifier:     BSD-3-Clause
 * https://spdx.org/licenses
 */

#include <platform.h>
#include <arch_helpers.h>
#include <mmio.h>
#include <debug.h>
#include <cache_llc.h>


#define CCU_HTC_ASET			(MVEBU_CCU_BASE(MVEBU_AP0) + 0x264)
#define MVEBU_IO_AFFINITY		(0xF00)


static void plat_enable_affinity(void)
{
	int cluster_id;
	int affinity;

	/* set CPU Affinity */
	cluster_id = plat_my_core_pos() / PLAT_MARVELL_CLUSTER_CORE_COUNT;
	affinity = (MVEBU_IO_AFFINITY | (1 << cluster_id));
	mmio_write_32(CCU_HTC_ASET, affinity);

	/* set barier */
	isb();
}

void marvell_psci_arch_init(int die_index)
{
#if LLC_ENABLE
	/* check if LLC is in exclusive mode
	 * as L2 is configured to UniqueClean eviction
	 * (in a8k reset handler)
	 */
	if (llc_is_exclusive(0) == 0)
		ERROR("LLC should be configured to exclusice mode\n");
#endif

	/* Enable Affinity */
	plat_enable_affinity();
}