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86 lines
2.3 KiB
86 lines
2.3 KiB
/*
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* Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <platform_def.h>
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#include <bl32/tsp/platform_tsp.h>
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#include <common/bl_common.h>
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#include <common/debug.h>
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#include <drivers/arm/pl011.h>
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#include <drivers/console.h>
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#include <plat/arm/common/plat_arm.h>
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/* Weak definitions may be overridden in specific ARM standard platform */
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#pragma weak tsp_early_platform_setup
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#pragma weak tsp_platform_setup
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#pragma weak tsp_plat_arch_setup
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#define MAP_BL_TSP_TOTAL MAP_REGION_FLAT( \
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BL32_BASE, \
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BL32_END - BL32_BASE, \
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MT_MEMORY | MT_RW | MT_SECURE)
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/*******************************************************************************
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* Initialize the UART
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******************************************************************************/
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static console_t arm_tsp_runtime_console;
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void arm_tsp_early_platform_setup(void)
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{
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/*
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* Initialize a different console than already in use to display
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* messages from TSP
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*/
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int rc = console_pl011_register(PLAT_ARM_TSP_UART_BASE,
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PLAT_ARM_TSP_UART_CLK_IN_HZ,
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ARM_CONSOLE_BAUDRATE,
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&arm_tsp_runtime_console);
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if (rc == 0)
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panic();
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console_set_scope(&arm_tsp_runtime_console,
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CONSOLE_FLAG_BOOT | CONSOLE_FLAG_RUNTIME);
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}
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void tsp_early_platform_setup(void)
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{
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arm_tsp_early_platform_setup();
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}
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/*******************************************************************************
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* Perform platform specific setup placeholder
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******************************************************************************/
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void tsp_platform_setup(void)
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{
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plat_arm_gic_driver_init();
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}
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/*******************************************************************************
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* Perform the very early platform specific architectural setup here. At the
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* moment this is only initializes the MMU
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******************************************************************************/
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void tsp_plat_arch_setup(void)
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{
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#if USE_COHERENT_MEM
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/* Ensure ARM platforms don't use coherent memory in TSP */
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assert((BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE) == 0U);
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#endif
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const mmap_region_t bl_regions[] = {
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MAP_BL_TSP_TOTAL,
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ARM_MAP_BL_RO,
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{0}
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};
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setup_page_tables(bl_regions, plat_arm_get_mmap());
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enable_mmu_el1(0);
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#if PLAT_RO_XLAT_TABLES
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arm_xlat_make_tables_readonly();
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#endif
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}
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