mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
d47fe9bb83
Currently, the USB boot mode is supported by an external loader and U-boot proper image is put on the section 0. This commit allows access there. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
33 lines
776 B
ArmAsm
33 lines
776 B
ArmAsm
/*
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* Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <config.h>
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#include <linux/linkage.h>
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/* page table */
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#define NR_SECTIONS 4096
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#define SECTION_SHIFT 20
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#define DEVICE 0x00002002 /* Non-shareable Device */
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#define NORMAL 0x0000000e /* Normal Memory Write-Back, No Write-Allocate */
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#define TEXT_SECTION ((CONFIG_SPL_TEXT_BASE) >> (SECTION_SHIFT))
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#define STACK_SECTION ((CONFIG_SPL_STACK) >> (SECTION_SHIFT))
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.section ".rodata"
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.align 14
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ENTRY(init_page_table)
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section = 0
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.rept NR_SECTIONS
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.if section == 0 || section == 1 || section == STACK_SECTION
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attr = NORMAL
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.else
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attr = DEVICE
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.endif
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.word (section << SECTION_SHIFT) | attr
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section = section + 1
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.endr
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END(init_page_table)
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