arm-trusted-firmware/plat/arm/common/arm_bl2u_setup.c
Antonio Nino Diaz 09d40e0e08 Sanitise includes across codebase
Enforce full include path for includes. Deprecate old paths.

The following folders inside include/lib have been left unchanged:

- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}

The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).

For example, this patch had to be created because two headers were
called the same way: e0ea0928d5 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a2 ("drivers: add tzc380 support").

This problem was introduced in commit 4ecca33988 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.

Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.

Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2019-01-04 10:43:17 +00:00

99 lines
2.5 KiB
C

/*
* Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <string.h>
#include <platform_def.h>
#include <arch_helpers.h>
#include <common/bl_common.h>
#include <drivers/generic_delay_timer.h>
#include <plat/common/platform.h>
#include <arm_def.h>
#include <plat_arm.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
#define MAP_BL2U_TOTAL MAP_REGION_FLAT( \
BL2U_BASE, \
BL2U_LIMIT - BL2U_BASE, \
MT_MEMORY | MT_RW | MT_SECURE)
/*
* 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(struct meminfo *mem_layout, void *plat_info)
{
/* Initialize the console to provide early debug support */
arm_console_boot_init();
generic_delay_timer_init();
}
/*******************************************************************************
* 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(struct meminfo *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)
{
#if USE_COHERENT_MEM
/* Ensure ARM platforms dont use coherent memory in BL2U */
assert((BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE) == 0U);
#endif
const mmap_region_t bl_regions[] = {
MAP_BL2U_TOTAL,
ARM_MAP_BL_RO,
#if USE_ROMLIB
ARM_MAP_ROMLIB_CODE,
ARM_MAP_ROMLIB_DATA,
#endif
{0}
};
setup_page_tables(bl_regions, plat_arm_get_mmap());
#ifdef AARCH32
enable_mmu_svc_mon(0);
#else
enable_mmu_el1(0);
#endif
arm_setup_romlib();
}
void bl2u_plat_arch_setup(void)
{
arm_bl2u_plat_arch_setup();
}