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ppc4xx: fix UIC external_interrupt hang on UIC0

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This patch fixes a UIC external_interrupt hang if critical or non-critical
interrupt is set at the same time as a normal interrupt is set on UIC0.

Signed-off-by: Victor Gallardo <vgallardo@amcc.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Victor Gallardo 2008-08-28 16:03:28 -07:00 committed by Stefan Roese
parent 04737d5ffd
commit 5bc542a593
1 changed files with 2 additions and 2 deletions
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4
cpu/ppc4xx/uic.c
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@ -129,11 +129,11 @@ void external_interrupt(struct pt_regs *regs)
uic_interrupt(UIC3_DCR_BASE, 96);
#endif
mtdcr(uic0sr, (uic_msr & UICB0_ALL));
if (uic_msr & ~(UICB0_ALL))
uic_interrupt(UIC0_DCR_BASE, 0);
mtdcr(uic0sr, uic_msr);
return;
}