diff options
| author |   Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
|---|---|---|
| committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
| commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
| tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/arch/avr32/lib/interrupts.c | |
| parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) | |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/arch/avr32/lib/interrupts.c')
| -rw-r--r-- | qemu/roms/u-boot/arch/avr32/lib/interrupts.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/arch/avr32/lib/interrupts.c b/qemu/roms/u-boot/arch/avr32/lib/interrupts.c new file mode 100644 index 000000000..bacb2d186 --- /dev/null +++ b/qemu/roms/u-boot/arch/avr32/lib/interrupts.c @@ -0,0 +1,30 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> + +#include <asm/sysreg.h> + +void enable_interrupts(void) +{ + asm volatile("csrf %0" : : "n"(SYSREG_GM_OFFSET)); +} + +int disable_interrupts(void) +{ + unsigned long sr; + + sr = sysreg_read(SR); + asm volatile("ssrf %0" : : "n"(SYSREG_GM_OFFSET)); + +#ifdef CONFIG_AT32UC3A0xxx + /* Two NOPs are required after masking interrupts on the + * AT32UC3A0512ES. See errata 41.4.5.5. */ + asm("nop"); + asm("nop"); +#endif + + return !SYSREG_BFEXT(GM, sr); +} |