43 строки
914 B
ArmAsm
43 строки
914 B
ArmAsm
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/*
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* Non-board-specific low-level startup code
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*
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* Copyright (C) 2004-2006 Atmel Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/linkage.h>
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#include <asm/page.h>
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#include <asm/thread_info.h>
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#include <asm/sysreg.h>
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.section .init.text,"ax"
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.global kernel_entry
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kernel_entry:
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/* Initialize status register */
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lddpc r0, init_sr
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mtsr SYSREG_SR, r0
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/* Set initial stack pointer */
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lddpc sp, stack_addr
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sub sp, -THREAD_SIZE
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#ifdef CONFIG_FRAME_POINTER
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/* Mark last stack frame */
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mov lr, 0
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mov r7, 0
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#endif
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/* Start the show */
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lddpc pc, kernel_start_addr
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.align 2
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init_sr:
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.long 0x007f0000 /* Supervisor mode, everything masked */
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stack_addr:
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.long init_thread_union
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kernel_start_addr:
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.long start_kernel
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