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git01.mediatek.com / filogic / atf / ee51c33714fd7b6c2934286b80bda2198f935960 / . / plat / meson / gxbb / gxbb_bl31_setup.c
blob: b867a58469e2d297e5238455016be4a1d089fc8a [file] [log] [blame]
Antonio Nino Diaz272e8712018-09-18 01:36:00 +0100[diff] [blame]1/*
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>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +0000[diff] [blame]8
Antonio Nino Diaz272e8712018-09-18 01:36:00 +0100[diff] [blame]9#include <platform_def.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +0000[diff] [blame]10
11#include <common/bl_common.h>
12#include <common/interrupt_props.h>
13#include <drivers/arm/gicv2.h>
14#include <lib/xlat_tables/xlat_mmu_helpers.h>
15#include <plat/common/platform.h>
Antonio Nino Diaz272e8712018-09-18 01:36:00 +0100[diff] [blame]16
17#include "gxbb_private.h"
18
19/*
20 * Placeholder variables for copying the arguments that have been passed to
21 * BL31 from BL2.
22 */
23static entry_point_info_t bl33_image_ep_info;
24
25/*******************************************************************************
26 * Return a pointer to the 'entry_point_info' structure of the next image for
27 * the security state specified. BL33 corresponds to the non-secure image type
28 * while BL32 corresponds to the secure image type. A NULL pointer is returned
29 * if the image does not exist.
30 ******************************************************************************/
31entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
32{
33 entry_point_info_t *next_image_info;
34
35 assert(type == NON_SECURE);
36
37 next_image_info = &bl33_image_ep_info;
38
39 /* None of the images can have 0x0 as the entrypoint. */
40 if (next_image_info->pc != 0U) {
41 return next_image_info;
42 } else {
43 return NULL;
44 }
45}
46
47/*******************************************************************************
48 * Perform any BL31 early platform setup. Here is an opportunity to copy
49 * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before
50 * they are lost (potentially). This needs to be done before the MMU is
51 * initialized so that the memory layout can be used while creating page
52 * tables. BL2 has flushed this information to memory, so we are guaranteed
53 * to pick up good data.
54 ******************************************************************************/
55struct gxbb_bl31_param {
56 param_header_t h;
57 image_info_t *bl31_image_info;
58 entry_point_info_t *bl32_ep_info;
59 image_info_t *bl32_image_info;
60 entry_point_info_t *bl33_ep_info;
61 image_info_t *bl33_image_info;
62};
63
64void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
65 u_register_t arg2, u_register_t arg3)
66{
67 struct gxbb_bl31_param *from_bl2;
68
69 /* Initialize the console to provide early debug support */
70 gxbb_console_init();
71
72 /*
73 * In debug builds, we pass a special value in 'arg1' to verify platform
74 * parameters from BL2 to BL31. In release builds it's not used.
75 */
76 assert(arg1 == GXBB_BL31_PLAT_PARAM_VAL);
77
78 /* Check that params passed from BL2 are not NULL. */
79 from_bl2 = (struct gxbb_bl31_param *) arg0;
80
81 /* Check params passed from BL2 are not NULL. */
82 assert(from_bl2 != NULL);
83 assert(from_bl2->h.type == PARAM_BL31);
84 assert(from_bl2->h.version >= VERSION_1);
85
86 /*
87 * Copy BL33 entry point information. It is stored in Secure RAM, in
88 * BL2's address space.
89 */
90 bl33_image_ep_info = *from_bl2->bl33_ep_info;
91
92 if (bl33_image_ep_info.pc == 0U) {
93 ERROR("BL31: BL33 entrypoint not obtained from BL2\n");
94 panic();
95 }
96}
97
98void bl31_plat_arch_setup(void)
99{
100 gxbb_setup_page_tables();
101
102 enable_mmu_el3(0);
103}
104
105/*******************************************************************************
106 * GICv2 driver setup information
107 ******************************************************************************/
108static const interrupt_prop_t gxbb_interrupt_props[] = {
109 INTR_PROP_DESC(IRQ_SEC_PHY_TIMER, GIC_HIGHEST_SEC_PRIORITY,
110 GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
111 INTR_PROP_DESC(IRQ_SEC_SGI_0, GIC_HIGHEST_SEC_PRIORITY,
112 GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
113 INTR_PROP_DESC(IRQ_SEC_SGI_1, GIC_HIGHEST_SEC_PRIORITY,
114 GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
115 INTR_PROP_DESC(IRQ_SEC_SGI_2, GIC_HIGHEST_SEC_PRIORITY,
116 GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
117 INTR_PROP_DESC(IRQ_SEC_SGI_3, GIC_HIGHEST_SEC_PRIORITY,
118 GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
119 INTR_PROP_DESC(IRQ_SEC_SGI_4, GIC_HIGHEST_SEC_PRIORITY,
120 GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
121 INTR_PROP_DESC(IRQ_SEC_SGI_5, GIC_HIGHEST_SEC_PRIORITY,
122 GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
123 INTR_PROP_DESC(IRQ_SEC_SGI_6, GIC_HIGHEST_SEC_PRIORITY,
124 GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
125 INTR_PROP_DESC(IRQ_SEC_SGI_7, GIC_HIGHEST_SEC_PRIORITY,
126 GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
127};
128
129static const gicv2_driver_data_t gxbb_gic_data = {
130 .gicd_base = GXBB_GICD_BASE,
131 .gicc_base = GXBB_GICC_BASE,
132 .interrupt_props = gxbb_interrupt_props,
133 .interrupt_props_num = ARRAY_SIZE(gxbb_interrupt_props),
134};
135
136void bl31_platform_setup(void)
137{
138 mhu_secure_init();
139
140 gicv2_driver_init(&gxbb_gic_data);
141 gicv2_distif_init();
142 gicv2_pcpu_distif_init();
143 gicv2_cpuif_enable();
144
145 gxbb_thermal_unknown();
146}