1*d5f225d9SManish V Badarkhe /* 2*d5f225d9SManish V Badarkhe * Copyright (c) 2022 Arm Limited. All rights reserved. 3*d5f225d9SManish V Badarkhe * 4*d5f225d9SManish V Badarkhe * SPDX-License-Identifier: BSD-3-Clause 5*d5f225d9SManish V Badarkhe * 6*d5f225d9SManish V Badarkhe */ 7*d5f225d9SManish V Badarkhe 8*d5f225d9SManish V Badarkhe #include <stdint.h> 9*d5f225d9SManish V Badarkhe 10*d5f225d9SManish V Badarkhe #include <plat/common/platform.h> 11*d5f225d9SManish V Badarkhe #include <platform_def.h> 12*d5f225d9SManish V Badarkhe 13*d5f225d9SManish V Badarkhe /******************************************************************************* 14*d5f225d9SManish V Badarkhe * Check passed region is within Non-Secure region of DRAM 15*d5f225d9SManish V Badarkhe ******************************************************************************/ plat_drtm_validate_ns_region(uintptr_t region_start,size_t region_size)16*d5f225d9SManish V Badarkheint plat_drtm_validate_ns_region(uintptr_t region_start, 17*d5f225d9SManish V Badarkhe size_t region_size) 18*d5f225d9SManish V Badarkhe { 19*d5f225d9SManish V Badarkhe uintptr_t region_end = region_start + region_size - 1; 20*d5f225d9SManish V Badarkhe 21*d5f225d9SManish V Badarkhe if (region_start >= region_end) { 22*d5f225d9SManish V Badarkhe return -1; 23*d5f225d9SManish V Badarkhe } else if ((region_start >= ARM_NS_DRAM1_BASE) && 24*d5f225d9SManish V Badarkhe (region_start < (ARM_NS_DRAM1_BASE + ARM_NS_DRAM1_SIZE)) && 25*d5f225d9SManish V Badarkhe (region_end >= ARM_NS_DRAM1_BASE) && 26*d5f225d9SManish V Badarkhe (region_end < (ARM_NS_DRAM1_BASE + ARM_NS_DRAM1_SIZE))) { 27*d5f225d9SManish V Badarkhe return 0; 28*d5f225d9SManish V Badarkhe } else if ((region_start >= ARM_DRAM2_BASE) && 29*d5f225d9SManish V Badarkhe (region_start < (ARM_DRAM2_BASE + ARM_DRAM2_SIZE)) && 30*d5f225d9SManish V Badarkhe (region_end >= ARM_DRAM2_BASE) && 31*d5f225d9SManish V Badarkhe (region_end < (ARM_DRAM2_BASE + ARM_DRAM2_SIZE))) { 32*d5f225d9SManish V Badarkhe return 0; 33*d5f225d9SManish V Badarkhe } 34*d5f225d9SManish V Badarkhe 35*d5f225d9SManish V Badarkhe return -1; 36*d5f225d9SManish V Badarkhe } 37