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7d173fc594
In some use-cases BL2 will be stored in eXecute In Place (XIP) memory, like BL1. In these use-cases, it is necessary to initialize the RW sections in RAM, while leaving the RO sections in place. This patch enable this use-case with a new build option, BL2_IN_XIP_MEM. For now, this option is only supported when BL2_AT_EL3 is 1. Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
/*
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* Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef __BL2_PRIVATE_H__
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#define __BL2_PRIVATE_H__
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#if BL2_IN_XIP_MEM
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/*******************************************************************************
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* Declarations of linker defined symbols which will tell us where BL2 lives
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* in Trusted ROM and RAM
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******************************************************************************/
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extern uintptr_t __BL2_ROM_END__;
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#define BL2_ROM_END (uintptr_t)(&__BL2_ROM_END__)
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extern uintptr_t __BL2_RAM_START__;
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extern uintptr_t __BL2_RAM_END__;
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#define BL2_RAM_BASE (uintptr_t)(&__BL2_RAM_START__)
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#define BL2_RAM_LIMIT (uintptr_t)(&__BL2_RAM_END__)
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#endif
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/******************************************
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* Forward declarations
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*****************************************/
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struct entry_point_info;
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/******************************************
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* Function prototypes
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*****************************************/
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void bl2_arch_setup(void);
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struct entry_point_info *bl2_load_images(void);
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void bl2_run_next_image(const struct entry_point_info *bl_ep_info);
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#endif /* __BL2_PRIVATE_H__ */
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