blob: 03d908b1618385525369f029161696b74109d3e2 [file] [log] [blame]
/*
* Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch_helpers.h>
#include <arm_def.h>
#include <bl_common.h>
#include <console.h>
#include <plat_arm.h>
#include <platform_def.h>
#include <string.h>
/* Weak definitions may be overridden in specific ARM standard platform */
#pragma weak bl2u_platform_setup
#pragma weak bl2u_early_platform_setup
#pragma weak bl2u_plat_arch_setup
/*
* Perform ARM standard platform setup for BL2U
*/
void arm_bl2u_platform_setup(void)
{
/* Initialize the secure environment */
plat_arm_security_setup();
}
void bl2u_platform_setup(void)
{
arm_bl2u_platform_setup();
}
void arm_bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info)
{
/* Initialize the console to provide early debug support */
console_init(PLAT_ARM_BOOT_UART_BASE, PLAT_ARM_BOOT_UART_CLK_IN_HZ,
ARM_CONSOLE_BAUDRATE);
}
/*******************************************************************************
* BL1 can pass platform dependent information to BL2U in x1.
* In case of ARM CSS platforms x1 contains SCP_BL2U image info.
* In case of ARM FVP platforms x1 is not used.
* In both cases, x0 contains the extents of the memory available to BL2U
******************************************************************************/
void bl2u_early_platform_setup(meminfo_t *mem_layout, void *plat_info)
{
arm_bl2u_early_platform_setup(mem_layout, plat_info);
}
/*******************************************************************************
* Perform the very early platform specific architectural setup here. At the
* moment this is only initializes the mmu in a quick and dirty way.
* The memory that is used by BL2U is only mapped.
******************************************************************************/
void arm_bl2u_plat_arch_setup(void)
{
arm_setup_page_tables(BL2U_BASE,
BL31_LIMIT,
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
);
#ifdef AARCH32
enable_mmu_secure(0);
#else
enable_mmu_el1(0);
#endif
}
void bl2u_plat_arch_setup(void)
{
arm_bl2u_plat_arch_setup();
}