FPGA_TP_ADDR_INTERRUPT_CAUSE
u32 tp_cause = readl(adapter->regs + FPGA_TP_ADDR_INTERRUPT_CAUSE);
writel(tp_cause, adapter->regs + FPGA_TP_ADDR_INTERRUPT_CAUSE);
tp->adapter->regs + FPGA_TP_ADDR_INTERRUPT_CAUSE);