projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 9c4566a1 DN |
1 | /* |
| 2 | * Copyright (c) 2003 ARM Limited | |
| 3 | * Copyright (c) u-boot contributors | |
| 4 | * Copyright (c) 2012 Pavel Machek <pavel@denx.de> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License version 2 as | |
| 8 | * published by the Free Software Foundation. | |
| 9 | */ | |
| 10 | #include <linux/linkage.h> | |
| 11 | #include <linux/init.h> | |
| 3a4356c0 | 12 | #include <asm/memory.h> |
| 9c4566a1 | 13 | |
| ad208d03 | 14 | .arch armv7-a |
| 9c4566a1 | 15 | |
| 9c4566a1 | 16 | ENTRY(secondary_trampoline) |
| 3a4356c0 DN |
17 | /* CPU1 will always fetch from 0x0 when it is brought out of reset. |
| 18 | * Thus, we can just subtract the PAGE_OFFSET to get the physical | |
| 19 | * address of &cpu1start_addr. This would not work for platforms | |
| 20 | * where the physical memory does not start at 0x0. | |
| 21 | */ | |
| 22 | adr r0, 1f | |
| 23 | ldmia r0, {r1, r2} | |
| 24 | sub r2, r2, #PAGE_OFFSET | |
| 25 | ldr r3, [r2] | |
| 26 | ldr r4, [r3] | |
| 27 | bx r4 | |
| 9c4566a1 | 28 | |
| 3a4356c0 DN |
29 | .align |
| 30 | 1: .long . | |
| 31 | .long socfpga_cpu1start_addr | |
| 9c4566a1 | 32 | ENTRY(secondary_trampoline_end) |
| d6dd735f DN |
33 | |
| 34 | ENTRY(socfpga_secondary_startup) | |
| 35 | bl v7_invalidate_l1 | |
| 36 | b secondary_startup | |
| 37 | ENDPROC(socfpga_secondary_startup) |