1 /* 2 * Copyright (c) 2014, STMicroelectronics International N.V. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <console.h> 29 #include <drivers/pl011.h> 30 #include <kernel/generic_boot.h> 31 #include <kernel/panic.h> 32 #include <kernel/pm_stubs.h> 33 #include <kernel/tz_ssvce_pl310.h> 34 #include <mm/core_mmu.h> 35 #include <mm/core_memprot.h> 36 #include <platform_config.h> 37 #include <stdint.h> 38 #include <tee/entry_std.h> 39 #include <tee/entry_fast.h> 40 #include <asc.h> 41 42 static void main_fiq(void); 43 static void stm_tee_entry_std(struct thread_smc_args *smc_args); 44 45 static const struct thread_handlers handlers = { 46 .std_smc = stm_tee_entry_std, 47 .fast_smc = tee_entry_fast, 48 .fiq = main_fiq, 49 .cpu_on = pm_panic, 50 .cpu_off = pm_panic, 51 .cpu_suspend = pm_panic, 52 .cpu_resume = pm_panic, 53 .system_off = pm_panic, 54 .system_reset = pm_panic, 55 }; 56 57 const struct thread_handlers *generic_boot_get_handlers(void) 58 { 59 return &handlers; 60 } 61 62 static int boot_is_completed; 63 static void stm_tee_entry_std(struct thread_smc_args *smc_args) 64 { 65 boot_is_completed = 1; 66 tee_entry_std(smc_args); 67 } 68 69 static void main_fiq(void) 70 { 71 panic(); 72 } 73 74 75 static vaddr_t console_base(void) 76 { 77 /* in case it's used before .bss is cleared */ 78 static void *va __early_bss; 79 80 if (cpu_mmu_enabled()) { 81 if (!va) 82 va = phys_to_virt(UART_CONSOLE_BASE, MEM_AREA_IO_NSEC); 83 return (vaddr_t)va; 84 } 85 return UART_CONSOLE_BASE; 86 } 87 88 void console_init(void) 89 { 90 } 91 92 void console_putc(int ch) 93 { 94 if (!boot_is_completed) 95 return; 96 __asc_xmit_char((char)ch, console_base()); 97 } 98 99 void console_flush(void) 100 { 101 if (!boot_is_completed) 102 return; 103 __asc_flush(console_base()); 104 } 105 106 vaddr_t pl310_base(void) 107 { 108 /* in case it's used before .bss is cleared */ 109 static void *va __early_bss; 110 111 if (cpu_mmu_enabled()) { 112 if (!va) 113 va = phys_to_virt(PL310_BASE, MEM_AREA_IO_NSEC); 114 return (vaddr_t)va; 115 } 116 return PL310_BASE; 117 } 118