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arc: interrupts - fix mask setup

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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>
This commit is contained in:
Igor Guryanov 2014-12-24 16:31:26 +03:00 committed by Alexey Brodkin
parent e47d733867
commit c0e9535e1d
1 changed files with 1 additions and 1 deletions
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2
arch/arc/cpu/arc700/interrupts.c
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@ -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 */