1 /* 2 * Copyright (c) 2015, Linaro Limited 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/hi16xx_uart.h> 30 #include <kernel/generic_boot.h> 31 #include <kernel/panic.h> 32 #include <kernel/pm_stubs.h> 33 #include <mm/tee_pager.h> 34 #include <mm/core_memprot.h> 35 #include <platform_config.h> 36 #include <stdint.h> 37 #include <tee/entry_std.h> 38 #include <tee/entry_fast.h> 39 40 static void main_fiq(void); 41 42 static const struct thread_handlers handlers = { 43 .std_smc = tee_entry_std, 44 .fast_smc = tee_entry_fast, 45 .fiq = main_fiq, 46 .cpu_on = cpu_on_handler, 47 .cpu_off = pm_do_nothing, 48 .cpu_suspend = pm_do_nothing, 49 .cpu_resume = pm_do_nothing, 50 .system_off = pm_do_nothing, 51 .system_reset = pm_do_nothing, 52 }; 53 54 register_phys_mem(MEM_AREA_IO_NSEC, CONSOLE_UART_BASE, HI16XX_UART_REG_SIZE); 55 56 const struct thread_handlers *generic_boot_get_handlers(void) 57 { 58 return &handlers; 59 } 60 61 static void main_fiq(void) 62 { 63 panic(); 64 } 65 66 static vaddr_t console_base(void) 67 { 68 static void *va; 69 70 if (cpu_mmu_enabled()) { 71 if (!va) 72 va = phys_to_virt(CONSOLE_UART_BASE, MEM_AREA_IO_NSEC); 73 return (vaddr_t)va; 74 } 75 return CONSOLE_UART_BASE; 76 } 77 78 void console_init(void) 79 { 80 hi16xx_uart_init(console_base(), CONSOLE_UART_CLK_IN_HZ, 81 CONSOLE_BAUDRATE); 82 } 83 84 void console_putc(int ch) 85 { 86 vaddr_t base = console_base(); 87 88 if (ch == '\n') 89 hi16xx_uart_putc('\r', base); 90 hi16xx_uart_putc(ch, base); 91 } 92 93 void console_flush(void) 94 { 95 hi16xx_uart_flush(console_base()); 96 } 97