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https://github.com/ARM-software/arm-trusted-firmware.git
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bd9344f670
Use full include paths like it is done for common includes.
This cleanup was started in commit d40e0e08283a ("Sanitise includes
across codebase"), but it only cleaned common files and drivers. This
patch does the same to Arm platforms.
Change-Id: If982e6450bbe84dceb56d464e282bcf5d6d9ab9b
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/*
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* Copyright (c) 2016-2018, 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 <platform_def.h>
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#include <common/debug.h>
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#include <drivers/arm/tzc_dmc500.h>
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#include <plat/arm/common/plat_arm.h>
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/*******************************************************************************
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* Initialize the DMC500-TrustZone Controller for ARM standard platforms.
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* When booting an EL3 payload, this is simplified: we configure region 0 with
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* secure access only and do not enable any other region.
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******************************************************************************/
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void arm_tzc_dmc500_setup(tzc_dmc500_driver_data_t *plat_driver_data,
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const arm_tzc_regions_info_t *tzc_regions)
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{
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#ifndef EL3_PAYLOAD_BASE
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unsigned int region_index = 1U;
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const arm_tzc_regions_info_t *p;
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const arm_tzc_regions_info_t init_tzc_regions[] = {
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ARM_TZC_REGIONS_DEF,
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{0}
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};
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#endif
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assert(plat_driver_data);
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INFO("Configuring DMC-500 TZ Settings\n");
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tzc_dmc500_driver_init(plat_driver_data);
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#ifndef EL3_PAYLOAD_BASE
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if (tzc_regions == NULL)
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p = init_tzc_regions;
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else
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p = tzc_regions;
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/* Region 0 set to no access by default */
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tzc_dmc500_configure_region0(TZC_REGION_S_NONE, 0);
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/* Rest Regions set according to tzc_regions array */
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for (; p->base != 0ULL; p++) {
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tzc_dmc500_configure_region(region_index, p->base, p->end,
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p->sec_attr, p->nsaid_permissions);
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region_index++;
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}
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INFO("Total %u regions set.\n", region_index);
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#else
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/* Allow secure access only to DRAM for EL3 payloads */
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tzc_dmc500_configure_region0(TZC_REGION_S_RDWR, 0);
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#endif
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/*
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* Raise an exception if a NS device tries to access secure memory
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* TODO: Add interrupt handling support.
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*/
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tzc_dmc500_set_action(TZC_ACTION_RV_LOWERR);
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/*
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* Flush the configuration settings to have an affect. Validate
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* flush by checking FILTER_EN is set on region 1 attributes
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* register.
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*/
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tzc_dmc500_config_complete();
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/*
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* Wait for the flush to complete.
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* TODO: Have a timeout for this loop
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*/
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while (tzc_dmc500_verify_complete())
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;
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}
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