From: Igor Guryanov guryanov@synopsys.com
To disable interrupts we need to reset corresponding flags in STATUS32 register. For this we need to OR flags for interrupts level1 and level2 and then AND with current value in STATUS32.
Before that implementation was incorrect.
Signed-off-by: Alexey Brodkin abrodkin@synopsys.com Signed-off-by: Igor Guryanov guryanov@synopsys.com --- arch/arc/cpu/arc700/interrupts.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arc/cpu/arc700/interrupts.c b/arch/arc/cpu/arc700/interrupts.c index 7dde74b..d7cab3b 100644 --- a/arch/arc/cpu/arc700/interrupts.c +++ b/arch/arc/cpu/arc700/interrupts.c @@ -23,7 +23,7 @@ int interrupt_init(void) int disable_interrupts(void) { int status = read_aux_reg(ARC_AUX_STATUS32); - int state = (status | E1_MASK | E2_MASK) ? 1 : 0; + int state = (status & (E1_MASK | E2_MASK)) ? 1 : 0;
status &= ~(E1_MASK | E2_MASK); /* STATUS32 register is updated indirectly with "FLAG" instruction */