[ARM] 3850/1: iop3xx: add thecus n2100 support

Add support for the Thecus n2100 (80219-based.)

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-iop32x/irq.c b/arch/arm/mach-iop32x/irq.c
index 21294be..17fb94e 100644
--- a/arch/arm/mach-iop32x/irq.c
+++ b/arch/arm/mach-iop32x/irq.c
@@ -63,7 +63,8 @@
 	intctl_write(0);
 	intstr_write(0);
 	if (machine_is_iq80321() ||
-	    machine_is_iq31244())
+	    machine_is_iq31244() ||
+	    machine_is_n2100())
 		*IOP3XX_PCIIRSR = 0x0f;
 
 	for (i = 0; i < NR_IRQS; i++) {