1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (c) 2003 ARM Limited 4 * Copyright (c) u-boot contributors 5 * Copyright (c) 2012 Pavel Machek <pavel@denx.de> 6 */ 7#include <linux/linkage.h> 8#include <linux/init.h> 9#include <asm/memory.h> 10#include <asm/assembler.h> 11 12 .arch armv7-a 13 .arm 14 15ENTRY(secondary_trampoline) 16 /* CPU1 will always fetch from 0x0 when it is brought out of reset. 17 * Thus, we can just subtract the PAGE_OFFSET to get the physical 18 * address of &cpu1start_addr. This would not work for platforms 19 * where the physical memory does not start at 0x0. 20 */ 21ARM_BE8(setend be) 22 adr r0, 1f 23 ldmia r0, {r1, r2} 24 sub r2, r2, #PAGE_OFFSET 25 ldr r3, [r2] 26 ldr r4, [r3] 27ARM_BE8(rev r4, r4) 28 bx r4 29 30 .align 311: .long . 32 .long socfpga_cpu1start_addr 33ENTRY(secondary_trampoline_end) 34