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Dan Handley9df48042015-03-19 18:58:55 +00001/*
Boyan Karatotev5eefc812025-01-07 11:04:16 +00002 * Copyright (c) 2015-2025, Arm Limited and Contributors. All rights reserved.
Dan Handley9df48042015-03-19 18:58:55 +00003 *
dp-armfa3cf0b2017-05-03 09:38:09 +01004 * SPDX-License-Identifier: BSD-3-Clause
Dan Handley9df48042015-03-19 18:58:55 +00005 */
6
Daniel Boulby45a2c9e2018-07-06 16:54:44 +01007#include <assert.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +00008
Dan Handley9df48042015-03-19 18:58:55 +00009#include <platform_def.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +000010
11#include <bl32/tsp/platform_tsp.h>
12#include <common/bl_common.h>
13#include <common/debug.h>
14#include <drivers/arm/pl011.h>
15#include <drivers/console.h>
Harrison Mutai64461f72025-02-21 11:52:48 +000016#if TRANSFER_LIST && MEASURED_BOOT
17#include <drivers/measured_boot/event_log/event_log.h>
18#endif
Antonio Nino Diazbd7b7402019-01-25 14:30:04 +000019#include <plat/arm/common/plat_arm.h>
Boyan Karatotev5eefc812025-01-07 11:04:16 +000020#include <plat/common/platform.h>
Dan Handley9df48042015-03-19 18:58:55 +000021
Dan Handley9df48042015-03-19 18:58:55 +000022/* Weak definitions may be overridden in specific ARM standard platform */
23#pragma weak tsp_early_platform_setup
24#pragma weak tsp_platform_setup
25#pragma weak tsp_plat_arch_setup
26
Daniel Boulby45a2c9e2018-07-06 16:54:44 +010027#define MAP_BL_TSP_TOTAL MAP_REGION_FLAT( \
28 BL32_BASE, \
29 BL32_END - BL32_BASE, \
30 MT_MEMORY | MT_RW | MT_SECURE)
Dan Handley9df48042015-03-19 18:58:55 +000031
Harrison Mutai64461f72025-02-21 11:52:48 +000032#define MAP_FW_HANDOFF MAP_REGION_FLAT( \
33 PLAT_ARM_EL3_FW_HANDOFF_BASE, \
34 PLAT_ARM_FW_HANDOFF_SIZE, \
35 MT_MEMORY | MT_RO | MT_SECURE)
36
37struct transfer_list_header *secure_tl __unused;
38
Dan Handley9df48042015-03-19 18:58:55 +000039/*******************************************************************************
40 * Initialize the UART
41 ******************************************************************************/
Andre Przywara2b1b1a52020-01-25 00:58:35 +000042static console_t arm_tsp_runtime_console;
Antonio Nino Diaz23ede6a2018-06-19 09:29:36 +010043
Harrison Mutai61992542025-03-21 17:26:41 +000044void arm_tsp_early_platform_setup(u_register_t arg0, u_register_t arg1,
45 u_register_t arg2, u_register_t arg3)
Dan Handley9df48042015-03-19 18:58:55 +000046{
Harrison Mutai64461f72025-02-21 11:52:48 +000047#if TRANSFER_LIST
48 secure_tl = (struct transfer_list_header *)arg3;
49 assert(secure_tl != NULL);
50
51 if (transfer_list_check_header(secure_tl) == TL_OPS_NON) {
52 ERROR("Invalid transfer list received");
53 transfer_list_dump(secure_tl);
54 panic();
55 }
56#endif
57
Dan Handley9df48042015-03-19 18:58:55 +000058 /*
59 * Initialize a different console than already in use to display
60 * messages from TSP
61 */
Antonio Nino Diaz23ede6a2018-06-19 09:29:36 +010062 int rc = console_pl011_register(PLAT_ARM_TSP_UART_BASE,
63 PLAT_ARM_TSP_UART_CLK_IN_HZ,
64 ARM_CONSOLE_BAUDRATE,
65 &arm_tsp_runtime_console);
Harrison Mutai61992542025-03-21 17:26:41 +000066 if (rc == 0) {
Antonio Nino Diaz23ede6a2018-06-19 09:29:36 +010067 panic();
Harrison Mutai61992542025-03-21 17:26:41 +000068 }
Antonio Nino Diaz23ede6a2018-06-19 09:29:36 +010069
Andre Przywara2b1b1a52020-01-25 00:58:35 +000070 console_set_scope(&arm_tsp_runtime_console,
Antonio Nino Diaz23ede6a2018-06-19 09:29:36 +010071 CONSOLE_FLAG_BOOT | CONSOLE_FLAG_RUNTIME);
Dan Handley9df48042015-03-19 18:58:55 +000072}
73
Harrison Mutai61992542025-03-21 17:26:41 +000074void tsp_early_platform_setup(u_register_t arg0, u_register_t arg1,
75 u_register_t arg2, u_register_t arg3)
Dan Handley9df48042015-03-19 18:58:55 +000076{
Harrison Mutai61992542025-03-21 17:26:41 +000077 arm_tsp_early_platform_setup(arg0, arg1, arg2, arg3);
Dan Handley9df48042015-03-19 18:58:55 +000078}
79
80/*******************************************************************************
81 * Perform platform specific setup placeholder
82 ******************************************************************************/
83void tsp_platform_setup(void)
84{
Harrison Mutai64461f72025-02-21 11:52:48 +000085 struct transfer_list_entry *te __unused;
86
Boyan Karatotev5eefc812025-01-07 11:04:16 +000087 /*
88 * On GICv2 the driver must be initialised before calling the plat_ic_*
89 * functions as they need the data structures. Higher versions don't.
90 */
91#if USE_GIC_DRIVER == 2
92 gic_init(plat_my_core_pos());
93#endif
Harrison Mutai64461f72025-02-21 11:52:48 +000094
95#if TRANSFER_LIST && MEASURED_BOOT
96 te = transfer_list_find(secure_tl, TL_TAG_TPM_EVLOG);
97 assert(te != NULL);
98
99 /*
100 * Note the actual log is offset 4-bytes from the start of entry data, the
101 * first bytes are reserved.
102 */
103 event_log_dump(transfer_list_entry_data(te) + U(4), te->data_size - U(4));
104#endif
Dan Handley9df48042015-03-19 18:58:55 +0000105}
106
107/*******************************************************************************
108 * Perform the very early platform specific architectural setup here. At the
Elyes Haouas2be03c02023-02-13 09:14:48 +0100109 * moment this is only initializes the MMU
Dan Handley9df48042015-03-19 18:58:55 +0000110 ******************************************************************************/
111void tsp_plat_arch_setup(void)
112{
Dan Handley9df48042015-03-19 18:58:55 +0000113#if USE_COHERENT_MEM
Paul Beesley1fbc97b2019-01-11 18:26:51 +0000114 /* Ensure ARM platforms don't use coherent memory in TSP */
Daniel Boulby45a2c9e2018-07-06 16:54:44 +0100115 assert((BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE) == 0U);
Dan Handley9df48042015-03-19 18:58:55 +0000116#endif
Daniel Boulby45a2c9e2018-07-06 16:54:44 +0100117
118 const mmap_region_t bl_regions[] = {
119 MAP_BL_TSP_TOTAL,
Daniel Boulby4e97abd2018-07-16 14:09:15 +0100120 ARM_MAP_BL_RO,
Harrison Mutai64461f72025-02-21 11:52:48 +0000121#if TRANSFER_LIST
122 MAP_FW_HANDOFF,
123#endif
Daniel Boulby45a2c9e2018-07-06 16:54:44 +0100124 {0}
125 };
126
Roberto Vargas344ff022018-10-19 16:44:18 +0100127 setup_page_tables(bl_regions, plat_arm_get_mmap());
Sandrine Bailleux4a1267a2016-05-18 16:11:47 +0100128 enable_mmu_el1(0);
Petre-Ionut Tudore5a6fef2019-11-07 15:18:03 +0000129
130#if PLAT_RO_XLAT_TABLES
131 arm_xlat_make_tables_readonly();
132#endif
Dan Handley9df48042015-03-19 18:58:55 +0000133}