blob: 9f71a1cc3ae5e93ef9e71d959e4b8be5d4802130 [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>
8#include <bl_common.h>
9#include <bl31.h>
10#include <console.h>
11#include <debug.h>
12#include <errno.h>
13#include <platform.h>
14#include <pl011.h>
15#include <xlat_tables.h>
16#include "versal_private.h"
17
18static entry_point_info_t bl32_image_ep_info;
19static entry_point_info_t bl33_image_ep_info;
20static console_pl011_t versal_runtime_console;
21
22/*
23 * Return a pointer to the 'entry_point_info' structure of the next image for
24 * the security state specified. BL33 corresponds to the non-secure image type
25 * while BL32 corresponds to the secure image type. A NULL pointer is returned
26 * if the image does not exist.
27 */
28entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
29{
30 assert(sec_state_is_valid(type));
31
32 if (type == NON_SECURE)
33 return &bl33_image_ep_info;
34
35 return &bl32_image_ep_info;
36}
37
38/*
39 * Perform any BL31 specific platform actions. Here is an opportunity to copy
40 * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before they
41 * are lost (potentially). This needs to be done before the MMU is initialized
42 * so that the memory layout can be used while creating page tables.
43 */
44void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
45 u_register_t arg2, u_register_t arg3)
46{
47
48 /* Initialize the console to provide early debug support */
49 int rc = console_pl011_register(VERSAL_UART_BASE,
50 VERSAL_UART_CLOCK,
51 VERSAL_UART_BAUDRATE,
52 &versal_runtime_console);
53 if (rc == 0)
54 panic();
55
56 console_set_scope(&versal_runtime_console.console, CONSOLE_FLAG_BOOT |
57 CONSOLE_FLAG_RUNTIME);
58
59 /* Initialize the platform config for future decision making */
60 versal_config_setup();
61 /* There are no parameters from BL2 if BL31 is a reset vector */
62 assert(arg0 == 0U);
63 assert(arg1 == 0U);
64
65 /*
66 * Do initial security configuration to allow DRAM/device access. On
67 * Base VERSAL only DRAM security is programmable (via TrustZone), but
68 * other platforms might have more programmable security devices
69 * present.
70 */
71
72 /* Populate common information for BL32 and BL33 */
73 SET_PARAM_HEAD(&bl32_image_ep_info, PARAM_EP, VERSION_1, 0);
74 SET_SECURITY_STATE(bl32_image_ep_info.h.attr, SECURE);
75 SET_PARAM_HEAD(&bl33_image_ep_info, PARAM_EP, VERSION_1, 0);
76 SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
77
78 /* use build time defaults in JTAG boot mode */
79 bl32_image_ep_info.pc = BL32_BASE;
80 bl32_image_ep_info.spsr = 0;
81 bl33_image_ep_info.pc = plat_get_ns_image_entrypoint();
82 bl33_image_ep_info.spsr = SPSR_64(MODE_EL2, MODE_SP_ELX,
83 DISABLE_ALL_EXCEPTIONS);
84
85 NOTICE("BL31: Secure code at 0x%lx\n", bl32_image_ep_info.pc);
86 NOTICE("BL31: Non secure code at 0x%lx\n", bl33_image_ep_info.pc);
87}
88
89void bl31_platform_setup(void)
90{
91 /* Initialize the gic cpu and distributor interfaces */
92 plat_versal_gic_driver_init();
93 plat_versal_gic_init();
94}
95
96void bl31_plat_runtime_setup(void)
97{
98}
99
100/*
101 * Perform the very early platform specific architectural setup here.
102 */
103void bl31_plat_arch_setup(void)
104{
105 const mmap_region_t bl_regions[] = {
106 MAP_REGION_FLAT(BL31_BASE, BL31_END - BL31_BASE,
107 MT_MEMORY | MT_RW | MT_SECURE),
108 MAP_REGION_FLAT(BL_CODE_BASE, BL_CODE_END - BL_CODE_BASE,
109 MT_CODE | MT_SECURE),
110 MAP_REGION_FLAT(BL_RO_DATA_BASE, BL_RO_DATA_END - BL_RO_DATA_BASE,
111 MT_RO_DATA | MT_SECURE),
112 MAP_REGION_FLAT(BL_COHERENT_RAM_BASE,
113 BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE,
114 MT_DEVICE | MT_RW | MT_SECURE),
115 {0}
116 };
117
118 setup_page_tables(bl_regions, plat_versal_get_mmap());
119 enable_mmu_el3(0);
120}