RSB_CTRL
if (readl(rsb->regs + RSB_CTRL) & RSB_CTRL_START_TRANS) {
rsb->regs + RSB_CTRL);
writel(RSB_CTRL_ABORT_TRANS, rsb->regs + RSB_CTRL);
writel(RSB_CTRL_SOFT_RST, rsb->regs + RSB_CTRL);
readl_poll_timeout(rsb->regs + RSB_CTRL, reg,