blob: d7e07e036a8b32cb855d03187d55afc18f3fd98e [file] [log] [blame]
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +05301/*
2 * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
3 *
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>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +00009
10#include <bl31/bl31.h>
11#include <common/bl_common.h>
12#include <common/debug.h>
13#include <drivers/arm/pl011.h>
14#include <drivers/console.h>
15#include <lib/xlat_tables/xlat_tables.h>
16#include <plat/common/platform.h>
17
Siva Durga Prasad Paladugufe4af662018-09-25 18:44:58 +053018#include "versal_private.h"
19
20static entry_point_info_t bl32_image_ep_info;
21static entry_point_info_t bl33_image_ep_info;
22static console_pl011_t versal_runtime_console;
23
24/*
25 * Return a pointer to the 'entry_point_info' structure of the next image for
26 * the security state specified. BL33 corresponds to the non-secure image type
27 * while BL32 corresponds to the secure image type. A NULL pointer is returned
28 * if the image does not exist.
29 */
30entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
31{
32 assert(sec_state_is_valid(type));
33
34 if (type == NON_SECURE)
35 return &bl33_image_ep_info;
36
37 return &bl32_image_ep_info;
38}
39
40/*
41 * Perform any BL31 specific platform actions. Here is an opportunity to copy
42 * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they
43 * are lost (potentially). This needs to be done before the MMU is initialized
44 * so that the memory layout can be used while creating page tables.
45 */
46void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
47 u_register_t arg2, u_register_t arg3)
48{
49
50 /* Initialize the console to provide early debug support */
51 int rc = console_pl011_register(VERSAL_UART_BASE,
52 VERSAL_UART_CLOCK,
53 VERSAL_UART_BAUDRATE,
54 &versal_runtime_console);
55 if (rc == 0)
56 panic();
57
58 console_set_scope(&versal_runtime_console.console, CONSOLE_FLAG_BOOT |
59 CONSOLE_FLAG_RUNTIME);
60
61 /* Initialize the platform config for future decision making */
62 versal_config_setup();
63 /* There are no parameters from BL2 if BL31 is a reset vector */
64 assert(arg0 == 0U);
65 assert(arg1 == 0U);
66
67 /*
68 * Do initial security configuration to allow DRAM/device access. On
69 * Base VERSAL only DRAM security is programmable (via TrustZone), but
70 * other platforms might have more programmable security devices
71 * present.
72 */
73
74 /* Populate common information for BL32 and BL33 */
75 SET_PARAM_HEAD(&bl32_image_ep_info, PARAM_EP, VERSION_1, 0);
76 SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE);
77 SET_PARAM_HEAD(&bl33_image_ep_info, PARAM_EP, VERSION_1, 0);
78 SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
79
80 /* use build time defaults in JTAG boot mode */
81 bl32_image_ep_info.pc = BL32_BASE;
82 bl32_image_ep_info.spsr = 0;
83 bl33_image_ep_info.pc = plat_get_ns_image_entrypoint();
84 bl33_image_ep_info.spsr = SPSR_64(MODE_EL2, MODE_SP_ELX,
85 DISABLE_ALL_EXCEPTIONS);
86
87 NOTICE("BL31: Secure code at 0x%lx\n", bl32_image_ep_info.pc);
88 NOTICE("BL31: Non secure code at 0x%lx\n", bl33_image_ep_info.pc);
89}
90
91void bl31_platform_setup(void)
92{
93 /* Initialize the gic cpu and distributor interfaces */
94 plat_versal_gic_driver_init();
95 plat_versal_gic_init();
96}
97
98void bl31_plat_runtime_setup(void)
99{
100}
101
102/*
103 * Perform the very early platform specific architectural setup here.
104 */
105void bl31_plat_arch_setup(void)
106{
107 const mmap_region_t bl_regions[] = {
108 MAP_REGION_FLAT(BL31_BASE, BL31_END - BL31_BASE,
109 MT_MEMORY | MT_RW | MT_SECURE),
110 MAP_REGION_FLAT(BL_CODE_BASE, BL_CODE_END - BL_CODE_BASE,
111 MT_CODE | MT_SECURE),
112 MAP_REGION_FLAT(BL_RO_DATA_BASE, BL_RO_DATA_END - BL_RO_DATA_BASE,
113 MT_RO_DATA | MT_SECURE),
114 MAP_REGION_FLAT(BL_COHERENT_RAM_BASE,
115 BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE,
116 MT_DEVICE | MT_RW | MT_SECURE),
117 {0}
118 };
119
120 setup_page_tables(bl_regions, plat_versal_get_mmap());
121 enable_mmu_el3(0);
122}