130 static void rockchip_can_write_cmdreg(struct rockchip_can *rcan, u8 val)  in rockchip_can_write_cmdreg()  argument
132 	writel(val, rcan->base + CAN_CMD);  in rockchip_can_write_cmdreg()
137 	struct rockchip_can *rcan = netdev_priv(ndev);  in set_reset_mode()  local
139 	reset_control_assert(rcan->reset);  in set_reset_mode()
141 	reset_control_deassert(rcan->reset);  in set_reset_mode()
143 	writel(0, rcan->base + CAN_MODE);  in set_reset_mode()
150 	struct rockchip_can *rcan = netdev_priv(ndev);  in set_normal_mode()  local
153 	val = readl(rcan->base + CAN_MODE);  in set_normal_mode()
155 	writel(val, rcan->base + CAN_MODE);  in set_normal_mode()
163 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_set_bittiming()  local
164 	struct can_bittiming *bt = &rcan->can.bittiming;  in rockchip_can_set_bittiming()
171 	if (rcan->can.ctrlmode & CAN_CTRLMODE_3_SAMPLES)  in rockchip_can_set_bittiming()
174 	writel(cfg, rcan->base + CAN_BTT);  in rockchip_can_set_bittiming()
185 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_get_berr_counter()  local
188 	err = pm_runtime_get_sync(rcan->dev);  in rockchip_can_get_berr_counter()
195 	bec->rxerr = readl(rcan->base + CAN_RX_ERR_CNT);  in rockchip_can_get_berr_counter()
196 	bec->txerr = readl(rcan->base + CAN_TX_ERR_CNT);  in rockchip_can_get_berr_counter()
198 	pm_runtime_put(rcan->dev);  in rockchip_can_get_berr_counter()
206 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_start()  local
211 	writel(0, rcan->base + CAN_INT_MASK);  in rockchip_can_start()
214 	writel(0, rcan->base + CAN_ID);  in rockchip_can_start()
215 	writel(CAN_RX_FILTER_MASK, rcan->base + CAN_ID_MASK);  in rockchip_can_start()
221 	rcan->can.state = CAN_STATE_ERROR_ACTIVE;  in rockchip_can_start()
229 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_stop()  local
232 	rcan->can.state = CAN_STATE_STOPPED;  in rockchip_can_stop()
241 	writel(val, rcan->base + CAN_INT_MASK);  in rockchip_can_stop()
277 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_start_xmit()  local
301 	rockchip_can_write_cmdreg(rcan, 0);  in rockchip_can_start_xmit()
303 	writel(id & CAN_TX_ID_MASK, rcan->base + CAN_TX_ID);  in rockchip_can_start_xmit()
307 		writel(data1, rcan->base + CAN_TX_DATA1);  in rockchip_can_start_xmit()
308 		writel(data2, rcan->base + CAN_TX_DATA2);  in rockchip_can_start_xmit()
311 	writel(fi, rcan->base + CAN_TX_FRM_INFO);  in rockchip_can_start_xmit()
314 	rockchip_can_write_cmdreg(rcan, TX_REQ);  in rockchip_can_start_xmit()
316 		   cf->can_id, cf->can_dlc, rcan->can.ctrlmode, data1, data2);  in rockchip_can_start_xmit()
323 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_rx()  local
336 	fi = readl(rcan->base + CAN_RX_FRM_INFO);  in rockchip_can_rx()
338 	id = readl(rcan->base + CAN_RX_ID);  in rockchip_can_rx()
346 		data1 = readl(rcan->base + CAN_RX_DATA1);  in rockchip_can_rx()
347 		data2 = readl(rcan->base + CAN_RX_DATA2);  in rockchip_can_rx()
365 static void rockchip_can_clean_rx_info(struct rockchip_can *rcan)  in rockchip_can_clean_rx_info()  argument
367 	readl(rcan->base + CAN_RX_FRM_INFO);  in rockchip_can_clean_rx_info()
368 	readl(rcan->base + CAN_RX_ID);  in rockchip_can_clean_rx_info()
369 	readl(rcan->base + CAN_RX_DATA1);  in rockchip_can_clean_rx_info()
370 	readl(rcan->base + CAN_RX_DATA2);  in rockchip_can_clean_rx_info()
375 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_err()  local
377 	enum can_state state = rcan->can.state;  in rockchip_can_err()
387 	rxerr = readl(rcan->base + CAN_RX_ERR_CNT);  in rockchip_can_err()
388 	txerr = readl(rcan->base + CAN_TX_ERR_CNT);  in rockchip_can_err()
389 	sta_reg = readl(rcan->base + CAN_STATE);  in rockchip_can_err()
428 		rcan->can.can_stats.bus_error++;  in rockchip_can_err()
432 			ecc = readl(rcan->base + CAN_ERR_CODE);  in rockchip_can_err()
467 		alc = readl(rcan->base + CAN_LOSTARB_CODE);  in rockchip_can_err()
468 		rcan->can.can_stats.arbitration_lost++;  in rockchip_can_err()
476 	if (state != rcan->can.state) {  in rockchip_can_err()
483 			rcan->can.state = state;  in rockchip_can_err()
502 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_interrupt()  local
508 	isr = readl(rcan->base + CAN_INT);  in rockchip_can_interrupt()
511 		stats->tx_bytes += readl(rcan->base + CAN_TX_FRM_INFO) &  in rockchip_can_interrupt()
514 		rockchip_can_write_cmdreg(rcan, 0);  in rockchip_can_interrupt()
524 		rockchip_can_clean_rx_info(rcan);  in rockchip_can_interrupt()
529 	writel(isr, rcan->base + CAN_INT);  in rockchip_can_interrupt()
530 	rockchip_can_clean_rx_info(rcan);  in rockchip_can_interrupt()
537 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_open()  local
545 	err = pm_runtime_get_sync(rcan->dev);  in rockchip_can_open()
565 	pm_runtime_put(rcan->dev);  in rockchip_can_open()
573 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_close()  local
579 	pm_runtime_put(rcan->dev);  in rockchip_can_close()
653 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_runtime_suspend()  local
655 	clk_bulk_disable_unprepare(rcan->num_clks, rcan->clks);  in rockchip_can_runtime_suspend()
670 	struct rockchip_can *rcan = netdev_priv(ndev);  in rockchip_can_runtime_resume()  local
673 	ret = clk_bulk_prepare_enable(rcan->num_clks, rcan->clks);  in rockchip_can_runtime_resume()
697 	struct rockchip_can *rcan;  in rockchip_can_probe()  local
723 	rcan = netdev_priv(ndev);  in rockchip_can_probe()
733 	rcan->reset = devm_reset_control_array_get(&pdev->dev, false, false);  in rockchip_can_probe()
734 	if (IS_ERR(rcan->reset)) {  in rockchip_can_probe()
735 		if (PTR_ERR(rcan->reset) != -EPROBE_DEFER)  in rockchip_can_probe()
737 		return PTR_ERR(rcan->reset);  in rockchip_can_probe()
740 	rcan->num_clks = devm_clk_bulk_get_all(&pdev->dev, &rcan->clks);  in rockchip_can_probe()
741 	if (rcan->num_clks < 1) {  in rockchip_can_probe()
746 	rcan->dev = &pdev->dev;  in rockchip_can_probe()
747 	rcan->can.clock.freq = clk_get_rate(rcan->clks[0].clk);  in rockchip_can_probe()
748 	rcan->can.bittiming_const = &rockchip_can_bittiming_const;  in rockchip_can_probe()
749 	rcan->can.do_set_mode = rockchip_can_set_mode;  in rockchip_can_probe()
750 	rcan->can.do_get_berr_counter = rockchip_can_get_berr_counter;  in rockchip_can_probe()
751 	rcan->can.ctrlmode_supported = CAN_CTRLMODE_BERR_REPORTING |  in rockchip_can_probe()
755 	rcan->base = addr;  in rockchip_can_probe()