1 /* 2 * Copyright (c) 2019 Synopsys 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #include <zephyr/devicetree.h> 8 #include <zephyr/arch/arc/v2/mpu/arc_mpu.h> 9 #include <zephyr/linker/linker-defs.h> 10 11 static struct arc_mpu_region mpu_regions[] = { 12 /* Region ICCM */ 13 MPU_REGION_ENTRY("ICCM", 14 DT_REG_ADDR(DT_INST(0, arc_iccm)), 15 DT_REG_SIZE(DT_INST(0, arc_iccm)), 16 REGION_ROM_ATTR), 17 /* Region DCCM */ 18 MPU_REGION_ENTRY("DCCM", 19 DT_REG_ADDR(DT_INST(0, arc_dccm)), 20 DT_REG_SIZE(DT_INST(0, arc_dccm)), 21 REGION_KERNEL_RAM_ATTR | REGION_DYNAMIC), 22 /* Region XCCM */ 23 #if DT_REG_SIZE(DT_INST(0, arc_xccm)) > 0 24 MPU_REGION_ENTRY("XCCM", 25 DT_REG_ADDR(DT_INST(0, arc_xccm)), 26 DT_REG_SIZE(DT_INST(0, arc_xccm)), 27 REGION_KERNEL_RAM_ATTR | REGION_DYNAMIC), 28 #endif 29 /* Region YCCM */ 30 #if DT_REG_SIZE(DT_INST(0, arc_yccm)) > 0 31 MPU_REGION_ENTRY("YCCM", 32 DT_REG_ADDR(DT_INST(0, arc_yccm)), 33 DT_REG_SIZE(DT_INST(0, arc_yccm)), 34 REGION_KERNEL_RAM_ATTR | REGION_DYNAMIC), 35 #endif 36 /* Region DDR RAM */ 37 MPU_REGION_ENTRY("SRAM", 38 DT_REG_ADDR(DT_INST(0, mmio_sram)), 39 DT_REG_SIZE(DT_INST(0, mmio_sram)), 40 REGION_KERNEL_RAM_ATTR | 41 AUX_MPU_ATTR_KW | AUX_MPU_ATTR_KR | AUX_MPU_ATTR_UR | 42 AUX_MPU_ATTR_KE | AUX_MPU_ATTR_UE | REGION_DYNAMIC), 43 /* Region Peripheral */ 44 MPU_REGION_ENTRY("PERIPHERAL", 45 0xF0000000, 46 32 * 1024 * 1024, 47 REGION_KERNEL_RAM_ATTR), 48 }; 49 50 struct arc_mpu_config mpu_config = { 51 .num_regions = ARRAY_SIZE(mpu_regions), 52 .mpu_regions = mpu_regions, 53 }; 54
