blob: 5e870ff5f25675d8ae5153d74149b7f0296a9c04 [file] [log] [blame]
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +05301/*
Venkatesh Yadav Abbarapu9156ffd2020-01-22 21:23:20 -07002 * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +05303 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7#include <assert.h>
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +05308#include <errno.h>
Tejas Patel54d13192019-02-27 18:44:55 +05309#include <plat_arm.h>
Tejas Patel69409962018-12-14 00:55:29 -080010#include <plat_private.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +000011#include <bl31/bl31.h>
12#include <common/bl_common.h>
13#include <common/debug.h>
14#include <drivers/arm/pl011.h>
15#include <drivers/console.h>
Venkatesh Yadav Abbarapu9156ffd2020-01-22 21:23:20 -070016#include <lib/mmio.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +000017#include <lib/xlat_tables/xlat_tables.h>
18#include <plat/common/platform.h>
Venkatesh Yadav Abbarapu9156ffd2020-01-22 21:23:20 -070019#include <versal_def.h>
20#include <plat_private.h>
21#include <plat_startup.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +000022
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +053023static entry_point_info_t bl32_image_ep_info;
24static entry_point_info_t bl33_image_ep_info;
Andre Przywara2b1b1a52020-01-25 00:58:35 +000025static console_t versal_runtime_console;
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +053026
27/*
28 * Return a pointer to the 'entry_point_info' structure of the next image for
29 * the security state specified. BL33 corresponds to the non-secure image type
30 * while BL32 corresponds to the secure image type. A NULL pointer is returned
31 * if the image does not exist.
32 */
33entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
34{
35 assert(sec_state_is_valid(type));
36
Venkatesh Yadav Abbarapu5f115db2021-01-10 20:40:16 -070037 if (type == NON_SECURE) {
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +053038 return &bl33_image_ep_info;
Venkatesh Yadav Abbarapu5f115db2021-01-10 20:40:16 -070039 }
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +053040
41 return &bl32_image_ep_info;
42}
43
44/*
Venkatesh Yadav Abbarapu9156ffd2020-01-22 21:23:20 -070045 * Set the build time defaults,if we can't find any config data.
46 */
47static inline void bl31_set_default_config(void)
48{
49 bl32_image_ep_info.pc = BL32_BASE;
50 bl32_image_ep_info.spsr = arm_get_spsr_for_bl32_entry();
51 bl33_image_ep_info.pc = plat_get_ns_image_entrypoint();
52 bl33_image_ep_info.spsr = SPSR_64(MODE_EL2, MODE_SP_ELX,
53 DISABLE_ALL_EXCEPTIONS);
54}
55
56/*
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +053057 * Perform any BL31 specific platform actions. Here is an opportunity to copy
58 * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they
59 * are lost (potentially). This needs to be done before the MMU is initialized
60 * so that the memory layout can be used while creating page tables.
61 */
62void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
63 u_register_t arg2, u_register_t arg3)
64{
Venkatesh Yadav Abbarapu9156ffd2020-01-22 21:23:20 -070065 uint64_t atf_handoff_addr;
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +053066
67 /* Initialize the console to provide early debug support */
68 int rc = console_pl011_register(VERSAL_UART_BASE,
69 VERSAL_UART_CLOCK,
70 VERSAL_UART_BAUDRATE,
71 &versal_runtime_console);
Venkatesh Yadav Abbarapu5f115db2021-01-10 20:40:16 -070072 if (rc == 0) {
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +053073 panic();
Venkatesh Yadav Abbarapu5f115db2021-01-10 20:40:16 -070074 }
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +053075
Andre Przywara2b1b1a52020-01-25 00:58:35 +000076 console_set_scope(&versal_runtime_console, CONSOLE_FLAG_BOOT |
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +053077 CONSOLE_FLAG_RUNTIME);
78
79 /* Initialize the platform config for future decision making */
80 versal_config_setup();
81 /* There are no parameters from BL2 if BL31 is a reset vector */
82 assert(arg0 == 0U);
83 assert(arg1 == 0U);
84
85 /*
86 * Do initial security configuration to allow DRAM/device access. On
87 * Base VERSAL only DRAM security is programmable (via TrustZone), but
88 * other platforms might have more programmable security devices
89 * present.
90 */
91
92 /* Populate common information for BL32 and BL33 */
93 SET_PARAM_HEAD(&bl32_image_ep_info, PARAM_EP, VERSION_1, 0);
94 SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE);
95 SET_PARAM_HEAD(&bl33_image_ep_info, PARAM_EP, VERSION_1, 0);
96 SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
97
Venkatesh Yadav Abbarapu9156ffd2020-01-22 21:23:20 -070098 atf_handoff_addr = mmio_read_32(PMC_GLOBAL_GLOB_GEN_STORAGE4);
99 enum fsbl_handoff ret = fsbl_atf_handover(&bl32_image_ep_info,
100 &bl33_image_ep_info,
101 atf_handoff_addr);
Venkatesh Yadav Abbarapuef75de02020-11-23 03:29:51 -0800102 if (ret == FSBL_HANDOFF_NO_STRUCT || ret == FSBL_HANDOFF_INVAL_STRUCT) {
Venkatesh Yadav Abbarapu9156ffd2020-01-22 21:23:20 -0700103 bl31_set_default_config();
104 } else if (ret != FSBL_HANDOFF_SUCCESS) {
105 panic();
106 }
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +0530107
108 NOTICE("BL31: Secure code at 0x%lx\n", bl32_image_ep_info.pc);
109 NOTICE("BL31: Non secure code at 0x%lx\n", bl33_image_ep_info.pc);
110}
111
112void bl31_platform_setup(void)
113{
114 /* Initialize the gic cpu and distributor interfaces */
115 plat_versal_gic_driver_init();
116 plat_versal_gic_init();
117}
118
119void bl31_plat_runtime_setup(void)
120{
121}
122
123/*
124 * Perform the very early platform specific architectural setup here.
125 */
126void bl31_plat_arch_setup(void)
127{
Tejas Patel54d13192019-02-27 18:44:55 +0530128 plat_arm_interconnect_init();
129 plat_arm_interconnect_enter_coherency();
130
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +0530131 const mmap_region_t bl_regions[] = {
132 MAP_REGION_FLAT(BL31_BASE, BL31_END - BL31_BASE,
133 MT_MEMORY | MT_RW | MT_SECURE),
134 MAP_REGION_FLAT(BL_CODE_BASE, BL_CODE_END - BL_CODE_BASE,
135 MT_CODE | MT_SECURE),
136 MAP_REGION_FLAT(BL_RO_DATA_BASE, BL_RO_DATA_END - BL_RO_DATA_BASE,
137 MT_RO_DATA | MT_SECURE),
138 MAP_REGION_FLAT(BL_COHERENT_RAM_BASE,
139 BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE,
140 MT_DEVICE | MT_RW | MT_SECURE),
141 {0}
142 };
143
144 setup_page_tables(bl_regions, plat_versal_get_mmap());
145 enable_mmu_el3(0);
146}