ppc4xx: fix UIC external_interrupt hang on UIC0

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.

---
 cpu/ppc4xx/uic.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

index 7944c6c..a95d1cb 100644
@@ -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;
 }
 

1.5.5

Applied to u-boot-ppc4xx. Thanks.

Best regards,
Stefan

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