66 lines
1.1 KiB
C
66 lines
1.1 KiB
C
#ifndef __ASM_ARM_HEAD_H
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#define __ASM_ARM_HEAD_H
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#include <asm/system.h>
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#ifndef __ASSEMBLY__
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void arm_cpu_lowlevel_init(void);
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/*
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* 32 bytes at this offset is reserved in the barebox head for board/SoC
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* usage
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*/
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#define ARM_HEAD_SPARE_OFS 0x30
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#define ARM_HEAD_SPARE_MARKER 0x55555555
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#ifdef CONFIG_HAVE_MACH_ARM_HEAD
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#include <mach/barebox-arm-head.h>
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#else
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static inline void __barebox_arm_head(void)
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{
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__asm__ __volatile__ (
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#ifdef CONFIG_THUMB2_BAREBOX
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".arm\n"
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"adr r9, 1f + 1\n"
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"bx r9\n"
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".thumb\n"
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"1:\n"
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"bl 2f\n"
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".rept 10\n"
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"1: b 1b\n"
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".endr\n"
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#else
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"b 2f\n"
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"1: b 1b\n"
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"1: b 1b\n"
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"1: b 1b\n"
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"1: b 1b\n"
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"1: b 1b\n"
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"1: b 1b\n"
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"1: b 1b\n"
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#endif
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".asciz \"barebox\"\n"
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".word _text\n" /* text base. If copied there,
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* barebox can skip relocation
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*/
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".word _barebox_image_size\n" /* image size to copy */
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".rept 8\n"
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".word 0x55555555\n"
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".endr\n"
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"2:\n"
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);
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}
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static inline void barebox_arm_head(void)
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{
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__barebox_arm_head();
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__asm__ __volatile__ (
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"b barebox_arm_reset_vector\n"
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);
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_ARM_HEAD_H */
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