1 /* 2 * Copyright (c) 2023-2024, STMicroelectronics - All Rights Reserved 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <assert.h> 8 9 #include <lib/xlat_tables/xlat_tables_v2.h> 10 11 #include <platform_def.h> 12 13 #define BKPR_BOOT_MODE 96U 14 15 #define MAP_SYSRAM MAP_REGION_FLAT(STM32MP_SYSRAM_BASE, \ 16 STM32MP_SYSRAM_SIZE, \ 17 MT_MEMORY | \ 18 MT_RW | \ 19 MT_SECURE | \ 20 MT_EXECUTE_NEVER) 21 22 #define MAP_DEVICE MAP_REGION_FLAT(STM32MP_DEVICE_BASE, \ 23 STM32MP_DEVICE_SIZE, \ 24 MT_DEVICE | \ 25 MT_RW | \ 26 MT_SECURE | \ 27 MT_EXECUTE_NEVER) 28 29 #if defined(IMAGE_BL2) 30 static const mmap_region_t stm32mp2_mmap[] = { 31 MAP_SYSRAM, 32 MAP_DEVICE, 33 {0} 34 }; 35 #endif 36 37 void configure_mmu(void) 38 { 39 mmap_add(stm32mp2_mmap); 40 init_xlat_tables(); 41 42 enable_mmu_el3(0); 43 } 44 45 uintptr_t stm32_get_gpio_bank_base(unsigned int bank) 46 { 47 if (bank == GPIO_BANK_Z) { 48 return GPIOZ_BASE; 49 } 50 51 assert(bank <= GPIO_BANK_K); 52 53 return GPIOA_BASE + (bank * GPIO_BANK_OFFSET); 54 } 55 56 uint32_t stm32_get_gpio_bank_offset(unsigned int bank) 57 { 58 if (bank == GPIO_BANK_Z) { 59 return 0; 60 } 61 62 assert(bank <= GPIO_BANK_K); 63 64 return bank * GPIO_BANK_OFFSET; 65 } 66 67 unsigned long stm32_get_gpio_bank_clock(unsigned int bank) 68 { 69 if (bank == GPIO_BANK_Z) { 70 return CK_BUS_GPIOZ; 71 } 72 73 assert(bank <= GPIO_BANK_K); 74 75 return CK_BUS_GPIOA + (bank - GPIO_BANK_A); 76 } 77 78 uintptr_t stm32_get_bkpr_boot_mode_addr(void) 79 { 80 return tamp_bkpr(BKPR_BOOT_MODE); 81 } 82