1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (C) 2016-2018 Texas Instruments Incorporated - http://www.ti.com/ 4 * Andrew F. Davis <afd@ti.com> 5 */ 6 7 #include <console.h> 8 #include <drivers/gic.h> 9 #include <drivers/serial8250_uart.h> 10 #include <drivers/ti_sci.h> 11 #include <drivers/ti_sci_transport.h> 12 #include <kernel/boot.h> 13 #include <kernel/panic.h> 14 #include <kernel/tee_common_otp.h> 15 #include <mm/core_memprot.h> 16 #include <mm/tee_pager.h> 17 #include <platform_config.h> 18 #include <stdint.h> 19 #include <string_ext.h> 20 21 static struct serial8250_uart_data console_data; 22 23 register_phys_mem_pgdir(MEM_AREA_IO_SEC, GICC_BASE, GICC_SIZE); 24 register_phys_mem_pgdir(MEM_AREA_IO_SEC, GICD_BASE, GICD_SIZE); 25 register_phys_mem_pgdir(MEM_AREA_IO_NSEC, CONSOLE_UART_BASE, 26 SERIAL8250_UART_REG_SIZE); 27 #if defined(PLATFORM_FLAVOR_am62lx) 28 register_phys_mem_pgdir(MEM_AREA_IO_SEC, TI_MAILBOX_TX_BASE, 29 TI_MAILBOX_DEFAULT_SIZE); 30 register_phys_mem_pgdir(MEM_AREA_IO_SEC, TI_MAILBOX_RX_BASE, 31 TI_MAILBOX_DEFAULT_SIZE); 32 register_phys_mem_pgdir(MEM_AREA_IO_SEC, MAILBOX_TX_START_REGION, 33 TI_MAILBOX_DEFAULT_SIZE); 34 register_phys_mem_pgdir(MEM_AREA_IO_SEC, MAILBOX_RX_START_REGION, 35 TI_MAILBOX_DEFAULT_SIZE); 36 #else 37 register_phys_mem_pgdir(MEM_AREA_IO_SEC, SEC_PROXY_DATA_BASE, 38 SEC_PROXY_DATA_SIZE); 39 register_phys_mem_pgdir(MEM_AREA_IO_SEC, SEC_PROXY_SCFG_BASE, 40 SEC_PROXY_SCFG_SIZE); 41 register_phys_mem_pgdir(MEM_AREA_IO_SEC, SEC_PROXY_RT_BASE, SEC_PROXY_RT_SIZE); 42 #endif 43 register_ddr(DRAM0_BASE, DRAM0_SIZE); 44 register_ddr(DRAM1_BASE, DRAM1_SIZE); 45 46 void boot_primary_init_intc(void) 47 { 48 gic_init(GICC_BASE, GICD_BASE); 49 } 50 51 void boot_secondary_init_intc(void) 52 { 53 gic_init_per_cpu(); 54 } 55 56 void plat_console_init(void) 57 { 58 serial8250_uart_init(&console_data, CONSOLE_UART_BASE, 59 CONSOLE_UART_CLK_IN_HZ, CONSOLE_BAUDRATE); 60 register_serial_console(&console_data.chip); 61 } 62 63 static TEE_Result init_ti_sci(void) 64 { 65 TEE_Result ret = TEE_SUCCESS; 66 67 ret = ti_sci_transport_init(); 68 if (ret != TEE_SUCCESS) 69 return ret; 70 71 ret = ti_sci_init(); 72 if (ret) 73 return TEE_ERROR_GENERIC; 74 75 return TEE_SUCCESS; 76 } 77 78 /* 79 * TISCI services are required for initialization of TRNG service that gets 80 * initialized during service_init_crypto. 81 * 82 * Initialize TISCI service just before service_init_crypto. 83 */ 84 early_init_late(init_ti_sci); 85 86 static TEE_Result secure_boot_information(void) 87 { 88 uint32_t keycnt = 0; 89 uint32_t keyrev = 0; 90 uint32_t swrev = 0; 91 92 if (!ti_sci_get_swrev(&swrev)) 93 IMSG("Secure Board Configuration Software: Rev %"PRIu32, 94 swrev); 95 96 if (!ti_sci_get_keycnt_keyrev(&keycnt, &keyrev)) 97 IMSG("Secure Boot Keys: Count %"PRIu32 ", Rev %"PRIu32, 98 keycnt, keyrev); 99 100 return TEE_SUCCESS; 101 } 102 103 service_init_late(secure_boot_information); 104 105 TEE_Result tee_otp_get_hw_unique_key(struct tee_hw_unique_key *hwkey) 106 { 107 uint8_t dkek[SA2UL_DKEK_KEY_LEN] = { }; 108 int ret = 0; 109 110 assert(SA2UL_DKEK_KEY_LEN >= HW_UNIQUE_KEY_LENGTH); 111 112 ret = ti_sci_get_dkek(0, "OP-TEE", "DKEK", dkek); 113 if (ret) { 114 EMSG("Could not get HUK"); 115 return TEE_ERROR_SECURITY; 116 } 117 118 memcpy(&hwkey->data[0], dkek, sizeof(hwkey->data)); 119 memzero_explicit(&dkek, sizeof(dkek)); 120 121 IMSG("HUK Initialized"); 122 123 return TEE_SUCCESS; 124 } 125