34 lines
802 B
ArmAsm
34 lines
802 B
ArmAsm
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2003 ARM Limited
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* Copyright (c) u-boot contributors
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* Copyright (c) 2012 Pavel Machek <pavel@denx.de>
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*/
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#include <linux/linkage.h>
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#include <linux/init.h>
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#include <asm/memory.h>
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#include <asm/assembler.h>
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.arch armv7-a
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.arm
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ENTRY(secondary_trampoline)
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/* CPU1 will always fetch from 0x0 when it is brought out of reset.
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* Thus, we can just subtract the PAGE_OFFSET to get the physical
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* address of &cpu1start_addr. This would not work for platforms
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* where the physical memory does not start at 0x0.
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*/
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ARM_BE8(setend be)
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adr r0, 1f
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ldmia r0, {r1, r2}
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sub r2, r2, #PAGE_OFFSET
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ldr r3, [r2]
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ldr r4, [r3]
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ARM_BE8(rev r4, r4)
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bx r4
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.align
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1: .long .
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.long socfpga_cpu1start_addr
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ENTRY(secondary_trampoline_end)
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