/*
 * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <arch_helpers.h>
#include <common/bl_common.h>
#include <common/debug.h>
#include <drivers/arm/cci.h>
#include <lib/mmio.h>
#include <lib/xlat_tables/xlat_tables_v2.h>
#include <platform_def.h>
#include <plat_private.h>
#include <pll.h>

static const int cci_map[] = {
	CCI_CLUSTER0_SL_IFACE_IX,
	CCI_CLUSTER1_SL_IFACE_IX
};

/* Table of regions to map using the MMU.  */
const mmap_region_t plat_mmap[] = {
	/* for TF text, RO, RW */
	MAP_REGION_FLAT(TZRAM_BASE, TZRAM_SIZE,
			MT_MEMORY | MT_RW | MT_SECURE),
	MAP_REGION_FLAT(MTK_DEV_BASE, MTK_DEV_SIZE,
			MT_DEVICE | MT_RW | MT_SECURE),
	{ 0 }
};

/*******************************************************************************
 * Macro generating the code for the function setting up the pagetables as per
 * the platform memory map & initialize the mmu, for the given exception level
 ******************************************************************************/
void plat_configure_mmu_svc_mon(unsigned long total_base,
				unsigned long total_size,
				unsigned long ro_start,
				unsigned long ro_limit,
				unsigned long coh_start,
				unsigned long coh_limit)
{
	mmap_add_region(total_base, total_base, total_size,
			MT_MEMORY | MT_RW | MT_SECURE);
	mmap_add_region(ro_start, ro_start, ro_limit - ro_start,
			MT_MEMORY | MT_RO | MT_SECURE);
	mmap_add_region(coh_start, coh_start, coh_limit - coh_start,
			MT_DEVICE | MT_RW | MT_SECURE);
	mmap_add(plat_mmap);

	init_xlat_tables();
	enable_mmu_svc_mon(0);
}

unsigned int plat_get_syscnt_freq2(void)
{
	return read_cntfrq_el0();
}

void plat_cci_init(void)
{
	/* Initialize CCI driver */
	cci_init(CCI_BASE, cci_map, ARRAY_SIZE(cci_map));
	/* Eable non-secure access*/
	mmio_write_32(CCI_BASE + CCI_SEC_ACCESS , 0x1);
}

void plat_cci_enable(void)
{
	/*
	 * Enable CCI coherency for this cluster.
	 * No need for locks as no other cpu is active at the moment.
	 */
	cci_enable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr()));
}

void plat_cci_disable(void)
{
	cci_disable_snoop_dvm_reqs(MPIDR_AFFLVL1_VAL(read_mpidr()));
}

uint32_t plat_uart_clock(void)
{
	uint32_t val;

	val = mmio_read_32(CLK_CFG_2);

	if (val & CLK_TOP_UART_SEL_MUX_MASK)
		return 50000000;

	return XTAL_CLK;
}
