1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright (c) 2022 Arm Limited. All rights reserved. 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu * 6*91f16700Schasinglulu */ 7*91f16700Schasinglulu 8*91f16700Schasinglulu #include <stdint.h> 9*91f16700Schasinglulu 10*91f16700Schasinglulu #include <plat/common/platform.h> 11*91f16700Schasinglulu #include <platform_def.h> 12*91f16700Schasinglulu 13*91f16700Schasinglulu /******************************************************************************* 14*91f16700Schasinglulu * Check passed region is within Non-Secure region of DRAM 15*91f16700Schasinglulu ******************************************************************************/ 16*91f16700Schasinglulu int plat_drtm_validate_ns_region(uintptr_t region_start, 17*91f16700Schasinglulu size_t region_size) 18*91f16700Schasinglulu { 19*91f16700Schasinglulu uintptr_t region_end = region_start + region_size - 1; 20*91f16700Schasinglulu 21*91f16700Schasinglulu if (region_start >= region_end) { 22*91f16700Schasinglulu return -1; 23*91f16700Schasinglulu } else if ((region_start >= ARM_NS_DRAM1_BASE) && 24*91f16700Schasinglulu (region_start < (ARM_NS_DRAM1_BASE + ARM_NS_DRAM1_SIZE)) && 25*91f16700Schasinglulu (region_end >= ARM_NS_DRAM1_BASE) && 26*91f16700Schasinglulu (region_end < (ARM_NS_DRAM1_BASE + ARM_NS_DRAM1_SIZE))) { 27*91f16700Schasinglulu return 0; 28*91f16700Schasinglulu } else if ((region_start >= ARM_DRAM2_BASE) && 29*91f16700Schasinglulu (region_start < (ARM_DRAM2_BASE + ARM_DRAM2_SIZE)) && 30*91f16700Schasinglulu (region_end >= ARM_DRAM2_BASE) && 31*91f16700Schasinglulu (region_end < (ARM_DRAM2_BASE + ARM_DRAM2_SIZE))) { 32*91f16700Schasinglulu return 0; 33*91f16700Schasinglulu } 34*91f16700Schasinglulu 35*91f16700Schasinglulu return -1; 36*91f16700Schasinglulu } 37