54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/*
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* Copyright (c) 2019 Synopsys
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/devicetree.h>
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#include <zephyr/arch/arc/v2/mpu/arc_mpu.h>
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#include <zephyr/linker/linker-defs.h>
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static struct arc_mpu_region mpu_regions[] = {
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/* Region ICCM */
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MPU_REGION_ENTRY("ICCM",
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DT_REG_ADDR(DT_INST(0, arc_iccm)),
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DT_REG_SIZE(DT_INST(0, arc_iccm)),
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REGION_ROM_ATTR),
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/* Region DCCM */
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MPU_REGION_ENTRY("DCCM",
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DT_REG_ADDR(DT_INST(0, arc_dccm)),
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DT_REG_SIZE(DT_INST(0, arc_dccm)),
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REGION_KERNEL_RAM_ATTR | REGION_DYNAMIC),
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/* Region XCCM */
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#if DT_REG_SIZE(DT_INST(0, arc_xccm)) > 0
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MPU_REGION_ENTRY("XCCM",
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DT_REG_ADDR(DT_INST(0, arc_xccm)),
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DT_REG_SIZE(DT_INST(0, arc_xccm)),
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REGION_KERNEL_RAM_ATTR | REGION_DYNAMIC),
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#endif
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/* Region YCCM */
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#if DT_REG_SIZE(DT_INST(0, arc_yccm)) > 0
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MPU_REGION_ENTRY("YCCM",
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DT_REG_ADDR(DT_INST(0, arc_yccm)),
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DT_REG_SIZE(DT_INST(0, arc_yccm)),
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REGION_KERNEL_RAM_ATTR | REGION_DYNAMIC),
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#endif
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/* Region DDR RAM */
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MPU_REGION_ENTRY("SRAM",
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DT_REG_ADDR(DT_INST(0, mmio_sram)),
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DT_REG_SIZE(DT_INST(0, mmio_sram)),
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REGION_KERNEL_RAM_ATTR |
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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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/* Region Peripheral */
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MPU_REGION_ENTRY("PERIPHERAL",
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0xF0000000,
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32 * 1024 * 1024,
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REGION_KERNEL_RAM_ATTR),
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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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