1 /* 2 * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <arm_def.h> 8 #include <assert.h> 9 #include <bl_common.h> 10 #include <console.h> 11 #include <debug.h> 12 #include <pl011.h> 13 #include <plat_arm.h> 14 #include <platform_def.h> 15 #include <platform_tsp.h> 16 17 #define BL32_END (unsigned long)(&__BL32_END__) 18 19 /* Weak definitions may be overridden in specific ARM standard platform */ 20 #pragma weak tsp_early_platform_setup 21 #pragma weak tsp_platform_setup 22 #pragma weak tsp_plat_arch_setup 23 24 #define MAP_BL_TSP_TOTAL MAP_REGION_FLAT( \ 25 BL32_BASE, \ 26 BL32_END - BL32_BASE, \ 27 MT_MEMORY | MT_RW | MT_SECURE) 28 29 /******************************************************************************* 30 * Initialize the UART 31 ******************************************************************************/ 32 #if MULTI_CONSOLE_API 33 static console_pl011_t arm_tsp_runtime_console; 34 #endif 35 36 void arm_tsp_early_platform_setup(void) 37 { 38 #if MULTI_CONSOLE_API 39 /* 40 * Initialize a different console than already in use to display 41 * messages from TSP 42 */ 43 int rc = console_pl011_register(PLAT_ARM_TSP_UART_BASE, 44 PLAT_ARM_TSP_UART_CLK_IN_HZ, 45 ARM_CONSOLE_BAUDRATE, 46 &arm_tsp_runtime_console); 47 if (rc == 0) 48 panic(); 49 50 console_set_scope(&arm_tsp_runtime_console.console, 51 CONSOLE_FLAG_BOOT | CONSOLE_FLAG_RUNTIME); 52 #else 53 console_init(PLAT_ARM_TSP_UART_BASE, PLAT_ARM_TSP_UART_CLK_IN_HZ, 54 ARM_CONSOLE_BAUDRATE); 55 #endif /* MULTI_CONSOLE_API */ 56 } 57 58 void tsp_early_platform_setup(void) 59 { 60 arm_tsp_early_platform_setup(); 61 } 62 63 /******************************************************************************* 64 * Perform platform specific setup placeholder 65 ******************************************************************************/ 66 void tsp_platform_setup(void) 67 { 68 plat_arm_gic_driver_init(); 69 } 70 71 /******************************************************************************* 72 * Perform the very early platform specific architectural setup here. At the 73 * moment this is only intializes the MMU 74 ******************************************************************************/ 75 void tsp_plat_arch_setup(void) 76 { 77 #if USE_COHERENT_MEM 78 /* Ensure ARM platforms dont use coherent memory in TSP */ 79 assert((BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE) == 0U); 80 #endif 81 82 const mmap_region_t bl_regions[] = { 83 MAP_BL_TSP_TOTAL, 84 ARM_MAP_BL_RO, 85 {0} 86 }; 87 88 setup_page_tables(bl_regions, plat_arm_get_mmap()); 89 enable_mmu_el1(0); 90 } 91