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Greentime Hu committed f13c34b9066
nds32: IRQ handling This patch includes irq related functions and irqchip_init(). Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>