1 /* 2 * Copyright (c) 2024, Arm Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 9 #include <drivers/arm/css/sds.h> 10 #include <drivers/arm/sbsa.h> 11 #include <lib/utils_def.h> 12 #include <plat/arm/common/plat_arm.h> 13 #include <plat/common/platform.h> 14 15 #include <platform_def.h> 16 17 /* 18 * Table of regions for different BL stages to map using the MMU. 19 */ 20 #if IMAGE_BL1 21 const mmap_region_t plat_arm_mmap[] = { 22 NRD_CSS_SHARED_RAM_MMAP(0), 23 NRD_ROS_FLASH0_RO_MMAP, 24 NRD_CSS_PERIPH_MMAP(0), 25 NRD_ROS_PLATFORM_PERIPH_MMAP, 26 NRD_ROS_SYSTEM_PERIPH_MMAP, 27 {0} 28 }; 29 #endif /* IMAGE_BL3 */ 30 31 #if IMAGE_BL2 32 const mmap_region_t plat_arm_mmap[] = { 33 NRD_CSS_SHARED_RAM_MMAP(0), 34 NRD_ROS_FLASH0_RO_MMAP, 35 #ifdef PLAT_ARM_MEM_PROT_ADDR 36 NRD_ROS_V2M_MEM_PROTECT_MMAP, 37 #endif 38 NRD_CSS_PERIPH_MMAP(0), 39 NRD_ROS_PLATFORM_PERIPH_MMAP, 40 NRD_ROS_SYSTEM_PERIPH_MMAP, 41 #if TRUSTED_BOARD_BOOT && !RESET_TO_BL2 42 NRD_CSS_BL1_RW_MMAP, 43 #endif 44 {0} 45 }; 46 #endif /* IMAGE_BL2 */ 47 48 #if IMAGE_BL31 49 const mmap_region_t plat_arm_mmap[] = { 50 NRD_CSS_SHARED_RAM_MMAP(0), 51 #ifdef PLAT_ARM_MEM_PROT_ADDR 52 NRD_ROS_V2M_MEM_PROTECT_MMAP, 53 #endif 54 NRD_CSS_PERIPH_MMAP(0), 55 NRD_ROS_PLATFORM_PERIPH_MMAP, 56 NRD_ROS_SYSTEM_PERIPH_MMAP, 57 {0} 58 }; 59 #endif /* IMAGE_BL31 */ 60 61 ARM_CASSERT_MMAP 62 63 #if TRUSTED_BOARD_BOOT 64 int plat_get_mbedtls_heap(void **heap_addr, size_t *heap_size) 65 { 66 assert(heap_addr != NULL); 67 assert(heap_size != NULL); 68 69 return arm_get_mbedtls_heap(heap_addr, heap_size); 70 } 71 #endif 72 73 void plat_arm_secure_wdt_start(void) 74 { 75 sbsa_wdog_start(NRD_CSS_AP_SECURE_WDOG_BASE, 76 NRD_CSS_AP_SECURE_WDOG_TIMEOUT); 77 } 78 79 void plat_arm_secure_wdt_stop(void) 80 { 81 sbsa_wdog_stop(NRD_CSS_AP_SECURE_WDOG_BASE); 82 } 83 84 static sds_region_desc_t nrd_sds_regions[] = { 85 { .base = PLAT_ARM_SDS_MEM_BASE }, 86 }; 87 88 sds_region_desc_t *plat_sds_get_regions(unsigned int *region_count) 89 { 90 *region_count = ARRAY_SIZE(nrd_sds_regions); 91 92 return nrd_sds_regions; 93 } 94