arm_tsp_setup.c

/*
 * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <arm_def.h>
#include <bl_common.h>
#include <console.h>
#include <debug.h>
#include <pl011.h>
#include <plat_arm.h>
#include <platform_def.h>
#include <platform_tsp.h>

#define BL32_END (unsigned long)(&__BL32_END__)

/* Weak definitions may be overridden in specific ARM standard platform */
#pragma weak tsp_early_platform_setup
#pragma weak tsp_platform_setup
#pragma weak tsp_plat_arch_setup


/*******************************************************************************
 * Initialize the UART
 ******************************************************************************/
#if MULTI_CONSOLE_API
static console_pl011_t arm_tsp_runtime_console;
#endif

void arm_tsp_early_platform_setup(void)
{
#if MULTI_CONSOLE_API
	/*
	 * Initialize a different console than already in use to display
	 * messages from TSP
	 */
	int rc = console_pl011_register(PLAT_ARM_TSP_UART_BASE,
					PLAT_ARM_TSP_UART_CLK_IN_HZ,
					ARM_CONSOLE_BAUDRATE,
					&arm_tsp_runtime_console);
	if (rc == 0)
		panic();

	console_set_scope(&arm_tsp_runtime_console.console,
			  CONSOLE_FLAG_BOOT | CONSOLE_FLAG_RUNTIME);
#else
	console_init(PLAT_ARM_TSP_UART_BASE, PLAT_ARM_TSP_UART_CLK_IN_HZ,
			ARM_CONSOLE_BAUDRATE);
#endif /* MULTI_CONSOLE_API */
}

void tsp_early_platform_setup(void)
{
	arm_tsp_early_platform_setup();
}

/*******************************************************************************
 * Perform platform specific setup placeholder
 ******************************************************************************/
void tsp_platform_setup(void)
{
	plat_arm_gic_driver_init();
}

/*******************************************************************************
 * Perform the very early platform specific architectural setup here. At the
 * moment this is only intializes the MMU
 ******************************************************************************/
void tsp_plat_arch_setup(void)
{
	arm_setup_page_tables(BL32_BASE,
			      (BL32_END - BL32_BASE),
			      BL_CODE_BASE,
			      BL_CODE_END,
			      BL_RO_DATA_BASE,
			      BL_RO_DATA_END
#if USE_COHERENT_MEM
			      , BL_COHERENT_RAM_BASE,
			      BL_COHERENT_RAM_END
#endif
			      );
	enable_mmu_el1(0);
}