| Peng Fan | fbf7f08 | 2019-04-15 05:20:43 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
| 2 | /* | ||||
| 3 | * Copyright 2019 NXP | ||||
| 4 | */ | ||||
| 5 | |||||
| 6 | #include <linux/linkage.h> | ||||
| 7 | |||||
| 8 | ENTRY(lowlevel_init) | ||||
| 9 | mrs x0, CurrentEL | ||||
| 10 | cmp x0, #8 | ||||
| 11 | b.eq 1f | ||||
| 12 | ret | ||||
| 13 | 1: | ||||
| 14 | msr daifclr, #4 | ||||
| 15 | |||||
| 16 | /* set HCR_EL2.AMO to catch SERROR */ | ||||
| 17 | mrs x0, hcr_el2 | ||||
| 18 | orr x0, x0, #0x20 | ||||
| 19 | msr hcr_el2, x0 | ||||
| 20 | isb | ||||
| 21 | ret | ||||
| 22 | ENDPROC(lowlevel_init) | ||||