84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/*
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* Copyright (c) 2015-2018, 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 <arch_helpers.h>
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#include <arm_def.h>
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#include <bl_common.h>
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#include <generic_delay_timer.h>
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#include <plat_arm.h>
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#include <platform_def.h>
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#include <platform.h>
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#include <string.h>
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/* Weak definitions may be overridden in specific ARM standard platform */
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#pragma weak bl2u_platform_setup
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#pragma weak bl2u_early_platform_setup
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#pragma weak bl2u_plat_arch_setup
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/*
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* Perform ARM standard platform setup for BL2U
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*/
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void arm_bl2u_platform_setup(void)
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{
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/* Initialize the secure environment */
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plat_arm_security_setup();
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}
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void bl2u_platform_setup(void)
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{
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arm_bl2u_platform_setup();
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}
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void arm_bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info)
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{
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/* Initialize the console to provide early debug support */
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arm_console_boot_init();
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generic_delay_timer_init();
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}
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/*******************************************************************************
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* BL1 can pass platform dependent information to BL2U in x1.
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* In case of ARM CSS platforms x1 contains SCP_BL2U image info.
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* In case of ARM FVP platforms x1 is not used.
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* In both cases, x0 contains the extents of the memory available to BL2U
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******************************************************************************/
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void bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info)
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{
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arm_bl2u_early_platform_setup(mem_layout, plat_info);
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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 in a quick and dirty way.
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* The memory that is used by BL2U is only mapped.
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******************************************************************************/
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void arm_bl2u_plat_arch_setup(void)
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{
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arm_setup_page_tables(BL2U_BASE,
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BL31_LIMIT,
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BL_CODE_BASE,
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BL_CODE_END,
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BL_RO_DATA_BASE,
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BL_RO_DATA_END
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#if USE_COHERENT_MEM
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,
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BL_COHERENT_RAM_BASE,
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BL_COHERENT_RAM_END
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#endif
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);
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#ifdef AARCH32
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enable_mmu_secure(0);
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#else
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enable_mmu_el1(0);
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#endif
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}
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void bl2u_plat_arch_setup(void)
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{
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arm_bl2u_plat_arch_setup();
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}
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