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