PPE_CFG_MAX_FRAME_LEN_REG
writel_relaxed(val, priv->base + PPE_CFG_MAX_FRAME_LEN_REG);
dsaf_write_dev(ppe_cb, PPE_CFG_MAX_FRAME_LEN_REG,
regs[534] = dsaf_read_dev(ppe_cb, PPE_CFG_MAX_FRAME_LEN_REG);