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 NRD_CSS_NS_DRAM1_MMAP, 42 #if TRUSTED_BOARD_BOOT && !RESET_TO_BL2 43 NRD_CSS_BL1_RW_MMAP, 44 #endif 45 {0} 46 }; 47 #endif /* IMAGE_BL2 */ 48 49 #if IMAGE_BL31 50 const mmap_region_t plat_arm_mmap[] = { 51 NRD_CSS_SHARED_RAM_MMAP(0), 52 #ifdef PLAT_ARM_MEM_PROT_ADDR 53 NRD_ROS_V2M_MEM_PROTECT_MMAP, 54 #endif 55 NRD_CSS_PERIPH_MMAP(0), 56 NRD_ROS_PLATFORM_PERIPH_MMAP, 57 NRD_ROS_SYSTEM_PERIPH_MMAP, 58 {0} 59 }; 60 #endif /* IMAGE_BL31 */ 61 62 ARM_CASSERT_MMAP 63 64 #if TRUSTED_BOARD_BOOT 65 int plat_get_mbedtls_heap(void **heap_addr, size_t *heap_size) 66 { 67 assert(heap_addr != NULL); 68 assert(heap_size != NULL); 69 70 return arm_get_mbedtls_heap(heap_addr, heap_size); 71 } 72 #endif 73 74 void plat_arm_secure_wdt_start(void) 75 { 76 sbsa_wdog_start(NRD_CSS_AP_SECURE_WDOG_BASE, 77 NRD_CSS_AP_SECURE_WDOG_TIMEOUT); 78 } 79 80 void plat_arm_secure_wdt_stop(void) 81 { 82 sbsa_wdog_stop(NRD_CSS_AP_SECURE_WDOG_BASE); 83 } 84 85 static sds_region_desc_t nrd_sds_regions[] = { 86 { .base = PLAT_ARM_SDS_MEM_BASE }, 87 }; 88 89 sds_region_desc_t *plat_sds_get_regions(unsigned int *region_count) 90 { 91 *region_count = ARRAY_SIZE(nrd_sds_regions); 92 93 return nrd_sds_regions; 94 } 95