59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/*
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* Copyright (c) 2017 Synopsys
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <devicetree.h>
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#include <soc.h>
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#include <arch/arc/v2/mpu/arc_mpu.h>
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#include <linker/linker-defs.h>
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/*
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* for secure firmware, MPU entries are only set up for secure world.
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* All regions not listed here are shared by secure world and normal world.
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*/
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static struct arc_mpu_region mpu_regions[] = {
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#if DT_ICCM_SIZE > 0
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/* Region ICCM */
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MPU_REGION_ENTRY("ICCM",
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DT_ICCM_BASE_ADDRESS,
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DT_ICCM_SIZE * 1024,
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REGION_ROM_ATTR),
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#endif
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#if DT_DCCM_SIZE > 0
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/* Region DCCM */
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MPU_REGION_ENTRY("DCCM",
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DT_DCCM_BASE_ADDRESS,
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DT_DCCM_SIZE * 1024,
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REGION_KERNEL_RAM_ATTR | REGION_DYNAMIC),
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#endif
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#if DT_INST_0_MMIO_SRAM_SIZE > 0
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/* Region DDR RAM */
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MPU_REGION_ENTRY("DDR RAM",
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DT_INST_0_MMIO_SRAM_BASE_ADDRESS,
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DT_INST_0_MMIO_SRAM_SIZE,
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AUX_MPU_ATTR_KW | AUX_MPU_ATTR_KR | AUX_MPU_ATTR_UR |
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AUX_MPU_ATTR_KE | AUX_MPU_ATTR_UE | REGION_DYNAMIC),
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#endif
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/*
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* Region peripheral is shared by secure world and normal world by default,
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* no need a static mpu entry. If some peripherals belong to secure world,
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* add it here.
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*/
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#ifndef CONFIG_ARC_SECURE_FIRMWARE
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/* Region Peripheral */
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MPU_REGION_ENTRY("PERIPHERAL",
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0xF0000000,
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64 * 1024,
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REGION_KERNEL_RAM_ATTR)
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#endif
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};
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struct arc_mpu_config mpu_config = {
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.num_regions = ARRAY_SIZE(mpu_regions),
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.mpu_regions = mpu_regions,
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};
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