1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (c) 2018, Linaro Limited 4 */ 5 6 #include <arm.h> 7 #include <console.h> 8 #include <drivers/gic.h> 9 #include <drivers/pl011.h> 10 #include <io.h> 11 #include <kernel/generic_boot.h> 12 #include <kernel/misc.h> 13 #include <kernel/panic.h> 14 #include <kernel/pm_stubs.h> 15 #include <kernel/thread.h> 16 #include <kernel/timer.h> 17 #include <mm/core_memprot.h> 18 #include <platform_config.h> 19 #include <sm/optee_smc.h> 20 #include <tee/entry_fast.h> 21 #include <tee/entry_std.h> 22 23 static void main_fiq(void); 24 25 static const struct thread_handlers handlers = { 26 .std_smc = tee_entry_std, 27 .fast_smc = tee_entry_fast, 28 .nintr = main_fiq, 29 .cpu_on = cpu_on_handler, 30 .cpu_off = pm_do_nothing, 31 .cpu_suspend = pm_do_nothing, 32 .cpu_resume = pm_do_nothing, 33 .system_off = pm_do_nothing, 34 .system_reset = pm_do_nothing, 35 }; 36 37 static struct gic_data gic_data; 38 static struct pl011_data console_data; 39 40 register_phys_mem(MEM_AREA_IO_NSEC, CONSOLE_UART_BASE, CORE_MMU_DEVICE_SIZE); 41 register_phys_mem(MEM_AREA_IO_SEC, GIC_BASE, CORE_MMU_DEVICE_SIZE); 42 43 const struct thread_handlers *generic_boot_get_handlers(void) 44 { 45 return &handlers; 46 } 47 48 static void main_fiq(void) 49 { 50 gic_it_handle(&gic_data); 51 } 52 53 void console_init(void) 54 { 55 pl011_init(&console_data, CONSOLE_UART_BASE, CONSOLE_UART_CLK_IN_HZ, 56 CONSOLE_BAUDRATE); 57 register_serial_console(&console_data.chip); 58 } 59 60 void main_init_gic(void) 61 { 62 vaddr_t gicd_base; 63 64 gicd_base = (vaddr_t)phys_to_virt(GIC_BASE + GICD_OFFSET, 65 MEM_AREA_IO_SEC); 66 67 if (!gicd_base) 68 panic(); 69 70 /* On ARMv8-A, GIC configuration is initialized in TF-A */ 71 gic_init_base_addr(&gic_data, 0, gicd_base); 72 73 itr_init(&gic_data.chip); 74 } 75 76 static enum itr_return timer_itr_cb(struct itr_handler *h __unused) 77 { 78 /* Reset timer for next FIQ */ 79 generic_timer_handler(TIMER_PERIOD_MS); 80 81 return ITRR_HANDLED; 82 } 83 84 static struct itr_handler timer_itr = { 85 .it = IT_SEC_TIMER, 86 .flags = ITRF_TRIGGER_LEVEL, 87 .handler = timer_itr_cb, 88 }; 89 90 static TEE_Result init_timer_itr(void) 91 { 92 itr_add(&timer_itr); 93 itr_enable(IT_SEC_TIMER); 94 95 return TEE_SUCCESS; 96 } 97 driver_init(init_timer_itr); 98