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09d40e0e08
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>
114 lines
2.6 KiB
C
114 lines
2.6 KiB
C
/*
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* Copyright (c) 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 <assert.h>
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#include <errno.h>
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#include <arch_helpers.h>
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#include <common/bl_common.h>
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#include <common/debug.h>
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#if TRUSTED_BOARD_BOOT
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#include <drivers/auth/mbedtls/mbedtls_config.h>
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#endif
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#include <lib/xlat_tables/xlat_tables_compat.h>
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#include <plat/common/platform.h>
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/*
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* The following platform functions are weakly defined. The Platforms
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* may redefine with strong definition.
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*/
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#pragma weak bl2_el3_plat_prepare_exit
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#pragma weak plat_error_handler
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#pragma weak bl2_plat_preload_setup
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#pragma weak bl2_plat_handle_pre_image_load
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#pragma weak bl2_plat_handle_post_image_load
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#pragma weak plat_try_next_boot_source
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#pragma weak plat_get_mbedtls_heap
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void bl2_el3_plat_prepare_exit(void)
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{
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}
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void __dead2 plat_error_handler(int err)
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{
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while (1)
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wfi();
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}
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void bl2_plat_preload_setup(void)
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{
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}
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int bl2_plat_handle_pre_image_load(unsigned int image_id)
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{
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return 0;
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}
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int bl2_plat_handle_post_image_load(unsigned int image_id)
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{
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return 0;
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}
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int plat_try_next_boot_source(void)
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{
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return 0;
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}
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#if TRUSTED_BOARD_BOOT
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/*
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* The following default implementation of the function simply returns the
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* by-default allocated heap.
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*/
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int plat_get_mbedtls_heap(void **heap_addr, size_t *heap_size)
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{
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static unsigned char heap[TF_MBEDTLS_HEAP_SIZE];
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assert(heap_addr != NULL);
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assert(heap_size != NULL);
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*heap_addr = heap;
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*heap_size = sizeof(heap);
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return 0;
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}
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#endif /* TRUSTED_BOARD_BOOT */
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/*
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* Set up the page tables for the generic and platform-specific memory regions.
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* The size of the Trusted SRAM seen by the BL image must be specified as well
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* as an array specifying the generic memory regions which can be;
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* - Code section;
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* - Read-only data section;
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* - Init code section, if applicable
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* - Coherent memory region, if applicable.
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*/
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void __init setup_page_tables(const mmap_region_t *bl_regions,
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const mmap_region_t *plat_regions)
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{
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#if LOG_LEVEL >= LOG_LEVEL_VERBOSE
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const mmap_region_t *regions = bl_regions;
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while (regions->size != 0U) {
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VERBOSE("Region: 0x%lx - 0x%lx has attributes 0x%x\n",
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regions->base_va,
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regions->base_va + regions->size,
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regions->attr);
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regions++;
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}
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#endif
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/*
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* Map the Trusted SRAM with appropriate memory attributes.
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* Subsequent mappings will adjust the attributes for specific regions.
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*/
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mmap_add(bl_regions);
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/* Now (re-)map the platform-specific memory regions */
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mmap_add(plat_regions);
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/* Create the page tables to reflect the above mappings */
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init_xlat_tables();
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}
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