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
boot_primary_init_intc(void)46 void boot_primary_init_intc(void)
47 {
48 gic_init(GICC_BASE, GICD_BASE);
49 }
50
boot_secondary_init_intc(void)51 void boot_secondary_init_intc(void)
52 {
53 gic_init_per_cpu();
54 }
55
plat_console_init(void)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
init_ti_sci(void)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
secure_boot_information(void)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
tee_otp_get_hw_unique_key(struct tee_hw_unique_key * hwkey)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