SYSCIMR
iowrite32(ioread32(rcar_gen4_sysc_base + SYSCIMR(reg_idx)) | isr_mask,
rcar_gen4_sysc_base + SYSCIMR(reg_idx));
iowrite32(ioread32(rcar_sysc_base + SYSCIMR) | isr_mask,
rcar_sysc_base + SYSCIMR);