diff options
Diffstat (limited to 'arch/arm/mach-imx/lowlevel.S')
| -rw-r--r-- | arch/arm/mach-imx/lowlevel.S | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/lowlevel.S b/arch/arm/mach-imx/lowlevel.S new file mode 100644 index 0000000000..158fdb7d87 --- /dev/null +++ b/arch/arm/mach-imx/lowlevel.S @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2019 NXP + */ + +#include <linux/linkage.h> + +ENTRY(lowlevel_init) + mrs x0, CurrentEL + cmp x0, #8 + b.eq 1f + ret +1: + msr daifclr, #4 + + /* set HCR_EL2.AMO to catch SERROR */ + mrs x0, hcr_el2 + orr x0, x0, #0x20 + msr hcr_el2, x0 + isb + ret +ENDPROC(lowlevel_init) |