mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-16 09:34:18 +00:00
402b3cf876
NOTE: AARCH32/AARCH64 macros are now deprecated in favor of __aarch64__. All common C compilers pre-define the same macros to signal which architecture the code is being compiled for: __arm__ for AArch32 (or earlier versions) and __aarch64__ for AArch64. There's no need for TF-A to define its own custom macros for this. In order to unify code with the export headers (which use __aarch64__ to avoid another dependency), let's deprecate the AARCH32 and AARCH64 macros and switch the code base over to the pre-defined standard macro. (Since it is somewhat unintuitive that __arm__ only means AArch32, let's standardize on only using __aarch64__.) Change-Id: Ic77de4b052297d77f38fc95f95f65a8ee70cf200 Signed-off-by: Julius Werner <jwerner@chromium.org>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/*
|
|
* Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <stdint.h>
|
|
|
|
#include <platform_def.h>
|
|
|
|
#include <arch.h>
|
|
#include <arch_helpers.h>
|
|
#include <bl1/bl1.h>
|
|
#include <bl2u/bl2u.h>
|
|
#include <common/bl_common.h>
|
|
#include <common/debug.h>
|
|
#include <drivers/auth/auth_mod.h>
|
|
#include <drivers/console.h>
|
|
#include <plat/common/platform.h>
|
|
|
|
/*******************************************************************************
|
|
* This function is responsible to:
|
|
* Load SCP_BL2U if platform has defined SCP_BL2U_BASE
|
|
* Perform platform setup.
|
|
* Go back to EL3.
|
|
******************************************************************************/
|
|
void bl2u_main(void)
|
|
{
|
|
NOTICE("BL2U: %s\n", version_string);
|
|
NOTICE("BL2U: %s\n", build_message);
|
|
|
|
#if SCP_BL2U_BASE
|
|
int rc;
|
|
/* Load the subsequent bootloader images */
|
|
rc = bl2u_plat_handle_scp_bl2u();
|
|
if (rc) {
|
|
ERROR("Failed to load SCP_BL2U (%i)\n", rc);
|
|
panic();
|
|
}
|
|
#endif
|
|
|
|
/* Perform platform setup in BL2U after loading SCP_BL2U */
|
|
bl2u_platform_setup();
|
|
|
|
console_flush();
|
|
|
|
#ifndef __aarch64__
|
|
/*
|
|
* For AArch32 state BL1 and BL2U share the MMU setup.
|
|
* Given that BL2U does not map BL1 regions, MMU needs
|
|
* to be disabled in order to go back to BL1.
|
|
*/
|
|
disable_mmu_icache_secure();
|
|
#endif /* !__aarch64__ */
|
|
|
|
/*
|
|
* Indicate that BL2U is done and resume back to
|
|
* normal world via an SMC to BL1.
|
|
* x1 could be passed to Normal world,
|
|
* so DO NOT pass any secret information.
|
|
*/
|
|
smc(FWU_SMC_SEC_IMAGE_DONE, 0, 0, 0, 0, 0, 0, 0);
|
|
wfi();
|
|
}
|