blob: df3488bf51e0e43d8557230ecf5559c9e6303c68 [file] [log] [blame]
/*
* Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <platform_def.h>
#include <bl32/tsp/platform_tsp.h>
#include <common/bl_common.h>
#include <common/debug.h>
#include <drivers/arm/pl011.h>
#include <drivers/console.h>
#include <plat/arm/common/plat_arm.h>
/* 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
#define MAP_BL_TSP_TOTAL MAP_REGION_FLAT( \
BL32_BASE, \
BL32_END - BL32_BASE, \
MT_MEMORY | MT_RW | MT_SECURE)
/*******************************************************************************
* Initialize the UART
******************************************************************************/
static console_t arm_tsp_runtime_console;
void arm_tsp_early_platform_setup(void)
{
/*
* 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_FLAG_BOOT | CONSOLE_FLAG_RUNTIME);
}
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 initializes the MMU
******************************************************************************/
void tsp_plat_arch_setup(void)
{
#if USE_COHERENT_MEM
/* Ensure ARM platforms don't use coherent memory in TSP */
assert((BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE) == 0U);
#endif
const mmap_region_t bl_regions[] = {
MAP_BL_TSP_TOTAL,
ARM_MAP_BL_RO,
{0}
};
setup_page_tables(bl_regions, plat_arm_get_mmap());
enable_mmu_el1(0);
#if PLAT_RO_XLAT_TABLES
arm_xlat_make_tables_readonly();
#endif
}