1 /*
2 * Copyright (c) 2013-2025, Arm Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 #include <assert.h>
8
9 #include <common/debug.h>
10 #include <common/desc_image_load.h>
11 #include <drivers/arm/sp804_delay_timer.h>
12 #include <fvp_pas_def.h>
13 #include <lib/fconf/fconf.h>
14 #include <lib/fconf/fconf_dyn_cfg_getter.h>
15 #if TRANSFER_LIST
16 #include <transfer_list.h>
17 #endif
18
19 #include <plat/arm/common/plat_arm.h>
20 #include <plat/common/platform.h>
21 #include <platform_def.h>
22
23 #include "fvp_private.h"
24
25 #if ENABLE_RME
26 /*
27 * The GPT library might modify the gpt regions structure to optimize
28 * the layout, so the array cannot be constant.
29 */
30 static pas_region_t pas_regions[] = {
31 ARM_PAS_KERNEL,
32 ARM_PAS_SECURE,
33 ARM_PAS_REALM,
34 ARM_PAS_EL3_DRAM,
35 #ifdef ARM_PAS_GPTS
36 ARM_PAS_GPTS,
37 #endif
38 ARM_PAS_KERNEL_1,
39 ARM_PAS_PCI_MEM_1,
40 ARM_PAS_PCI_MEM_2
41 };
42
43 static const arm_gpt_info_t arm_gpt_info = {
44 .pas_region_base = pas_regions,
45 .pas_region_count = (unsigned int)ARRAY_SIZE(pas_regions),
46 .l0_base = ARM_L0_GPT_BASE,
47 .l1_base = ARM_L1_GPT_BASE,
48 .l0_size = ARM_L0_GPT_SIZE,
49 .l1_size = ARM_L1_GPT_SIZE,
50 .pps = GPCCR_PPS_1TB,
51 .pgs = GPCCR_PGS_4K
52 };
53 #endif /* ENABLE_RME */
54
bl2_early_platform_setup2(u_register_t arg0,u_register_t arg1,u_register_t arg2,u_register_t arg3)55 void bl2_early_platform_setup2(u_register_t arg0, u_register_t arg1, u_register_t arg2, u_register_t arg3)
56 {
57 arm_bl2_early_platform_setup(arg0, arg1, arg2, arg3);
58
59 /* Initialize the platform config for future decision making */
60 fvp_config_setup();
61 }
62
bl2_platform_setup(void)63 void bl2_platform_setup(void)
64 {
65 arm_bl2_platform_setup();
66
67 /* Initialize System level generic or SP804 timer */
68 fvp_timer_init();
69 }
70
71 #if ENABLE_RME
plat_arm_get_gpt_info(void)72 const arm_gpt_info_t *plat_arm_get_gpt_info(void)
73 {
74 return &arm_gpt_info;
75 }
76 #endif /* ENABLE_RME */
77
78 /*******************************************************************************
79 * This function returns the list of executable images
80 ******************************************************************************/
plat_get_next_bl_params(void)81 struct bl_params *plat_get_next_bl_params(void)
82 {
83 struct bl_params *arm_bl_params;
84 bl_mem_params_node_t *param_node __unused;
85 const struct dyn_cfg_dtb_info_t *fw_config_info __unused;
86 const struct dyn_cfg_dtb_info_t *hw_config_info __unused;
87 entry_point_info_t *ep __unused;
88 uint32_t next_exe_img_id __unused;
89 uintptr_t fw_config_base __unused;
90
91 arm_bl_params = arm_get_next_bl_params();
92
93 #if __aarch64__
94 /* Get BL31 image node */
95 param_node = get_bl_mem_params_node(BL31_IMAGE_ID);
96 #else /* aarch32 */
97 /* Get SP_MIN image node */
98 param_node = get_bl_mem_params_node(BL32_IMAGE_ID);
99 #endif /* __aarch64__ */
100 assert(param_node != NULL);
101
102 #if TRANSFER_LIST
103 arm_bl_params->head = ¶m_node->params_node_mem;
104 arm_bl_params->head->ep_info = ¶m_node->ep_info;
105 arm_bl_params->head->image_id = param_node->image_id;
106
107 arm_bl2_setup_next_ep_info(param_node);
108 #elif !RESET_TO_BL2 && !EL3_PAYLOAD_BASE
109 fw_config_base = 0UL;
110
111 /* Update the next image's ep info with the FW config address */
112 fw_config_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, FW_CONFIG_ID);
113 assert(fw_config_info != NULL);
114
115 fw_config_base = fw_config_info->config_addr;
116 assert(fw_config_base != 0UL);
117
118 param_node->ep_info.args.arg1 = (uint32_t)fw_config_base;
119 #endif /* TRANSFER_LIST */
120
121 return arm_bl_params;
122 }
123
bl2_plat_handle_post_image_load(unsigned int image_id)124 int bl2_plat_handle_post_image_load(unsigned int image_id)
125 {
126 #if !RESET_TO_BL2 && !EL3_PAYLOAD_BASE && !TRANSFER_LIST
127 if (image_id == HW_CONFIG_ID) {
128 const struct dyn_cfg_dtb_info_t *hw_config_info __unused;
129 struct transfer_list_entry *te __unused;
130 bl_mem_params_node_t *param_node __unused;
131
132 param_node = get_bl_mem_params_node(image_id);
133 assert(param_node != NULL);
134
135 hw_config_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, HW_CONFIG_ID);
136 assert(hw_config_info != NULL);
137
138 memcpy((void *)hw_config_info->secondary_config_addr,
139 (void *)hw_config_info->config_addr,
140 (size_t)param_node->image_info.image_size);
141
142 /*
143 * Ensure HW-config device tree is committed to memory, as the HW-Config
144 * might be used without cache and MMU enabled at BL33.
145 */
146 flush_dcache_range(hw_config_info->secondary_config_addr,
147 param_node->image_info.image_size);
148 }
149 #endif /* !RESET_TO_BL2 && !EL3_PAYLOAD_BASE && !TRANSFER_LIST*/
150
151 return arm_bl2_plat_handle_post_image_load(image_id);
152 }
153
plat_get_hw_dt_base(void)154 uintptr_t plat_get_hw_dt_base(void)
155 {
156 const struct dyn_cfg_dtb_info_t *hw_config_info;
157
158 hw_config_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, HW_CONFIG_ID);
159 if (hw_config_info == NULL) {
160 return 0U;
161 }
162
163 return hw_config_info->secondary_config_addr;
164 }
165