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/boot.h> 12 #include <kernel/interrupt.h> 13 #include <kernel/misc.h> 14 #include <kernel/panic.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 21 #include "synquacer_rng_pta.h" 22 23 static struct pl011_data console_data; 24 25 register_phys_mem_pgdir(MEM_AREA_IO_NSEC, CONSOLE_UART_BASE, 26 CORE_MMU_PGDIR_SIZE); 27 register_phys_mem_pgdir(MEM_AREA_IO_SEC, GIC_BASE, CORE_MMU_PGDIR_SIZE); 28 register_phys_mem_pgdir(MEM_AREA_IO_SEC, THERMAL_SENSOR_BASE, 29 CORE_MMU_PGDIR_SIZE); 30 31 void console_init(void) 32 { 33 pl011_init(&console_data, CONSOLE_UART_BASE, CONSOLE_UART_CLK_IN_HZ, 34 CONSOLE_BAUDRATE); 35 register_serial_console(&console_data.chip); 36 } 37 38 void boot_primary_init_intc(void) 39 { 40 gic_init(0, GIC_BASE + GICD_OFFSET); 41 } 42 43 static enum itr_return timer_itr_cb(struct itr_handler *h __unused) 44 { 45 /* Reset timer for next FIQ */ 46 generic_timer_handler(TIMER_PERIOD_MS); 47 48 /* Collect entropy on each timer FIQ */ 49 rng_collect_entropy(); 50 51 return ITRR_HANDLED; 52 } 53 54 static struct itr_handler timer_itr = { 55 .it = IT_SEC_TIMER, 56 .flags = ITRF_TRIGGER_LEVEL, 57 .handler = timer_itr_cb, 58 }; 59 60 static TEE_Result init_timer_itr(void) 61 { 62 itr_add(&timer_itr); 63 itr_enable(IT_SEC_TIMER); 64 65 /* Enable timer FIQ to fetch entropy required during boot */ 66 generic_timer_start(TIMER_PERIOD_MS); 67 68 return TEE_SUCCESS; 69 } 70 driver_init(init_timer_itr); 71