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feat(tc): port BL2-BL31 interface to firmware handoff framework

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Adding support for this framework at the handoff boundary between
firmware stage BL2 and BL31 on TC.

Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Change-Id: I8e29b859e57a732e53f7532a5869ed4c8665b161
This commit is contained in:
Jayanth Dodderi Chidanand 2025-03-01 17:45:02 +00:00
parent 93c50ae67f
commit 2a36dee8f1
2 changed files with 20 additions and 7 deletions
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5
include/drivers/arm/css/css_scp.h
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2016-2025, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -45,8 +45,11 @@ int css_scp_boot_ready(void);
CASSERT(SCP_BL2_LIMIT <= BL2_BASE, assert_scp_bl2_overwrite_bl2);
CASSERT(SCP_BL2U_LIMIT <= BL2_BASE, assert_scp_bl2u_overwrite_bl2);
#if !TRANSFER_LIST
CASSERT(SCP_BL2_BASE >= ARM_FW_CONFIG_LIMIT, assert_scp_bl2_overflow);
CASSERT(SCP_BL2U_BASE >= ARM_FW_CONFIG_LIMIT, assert_scp_bl2u_overflow);
#endif /* !TRANSFER_LIST */
#endif
#endif /* CSS_SCP_H */

22
plat/arm/board/tc/tc_bl2_setup.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2021, ARM Limited. All rights reserved.
* Copyright (c) 2021-2025, ARM Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -18,17 +18,26 @@
******************************************************************************/
struct bl_params *plat_get_next_bl_params(void)
{
struct bl_params *arm_bl_params = arm_get_next_bl_params();
const struct dyn_cfg_dtb_info_t *fw_config_info;
struct bl_params *arm_bl_params;
bl_mem_params_node_t *param_node;
uintptr_t fw_config_base = 0U;
entry_point_info_t *ep_info;
const struct dyn_cfg_dtb_info_t *fw_config_info __maybe_unused;
uintptr_t fw_config_base __maybe_unused;
entry_point_info_t *ep_info __maybe_unused;
arm_bl_params = arm_get_next_bl_params();
/* Get BL31 image node */
param_node = get_bl_mem_params_node(BL31_IMAGE_ID);
assert(param_node != NULL);
#if TRANSFER_LIST
assert(arm_bl_params != NULL);
arm_bl_params->head = &param_node->params_node_mem;
arm_bl_params->head->ep_info = &param_node->ep_info;
arm_bl_params->head->image_id = param_node->image_id;
arm_bl2_setup_next_ep_info(param_node);
#else
/* Get fw_config load address */
fw_config_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, FW_CONFIG_ID);
assert(fw_config_info != NULL);
@ -42,6 +51,7 @@ struct bl_params *plat_get_next_bl_params(void)
*/
ep_info = &param_node->ep_info;
ep_info->args.arg1 = (uint32_t)fw_config_base;
#endif /* TRANSFER_LIST */
return arm_bl_params;
}