Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

 1) Significantly shrink the core networking routing structures. Result
    of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf

 2) Add netdevsim driver for testing various offloads, from Jakub
    Kicinski.

 3) Support cross-chip FDB operations in DSA, from Vivien Didelot.

 4) Add a 2nd listener hash table for TCP, similar to what was done for
    UDP. From Martin KaFai Lau.

 5) Add eBPF based queue selection to tun, from Jason Wang.

 6) Lockless qdisc support, from John Fastabend.

 7) SCTP stream interleave support, from Xin Long.

 8) Smoother TCP receive autotuning, from Eric Dumazet.

 9) Lots of erspan tunneling enhancements, from William Tu.

10) Add true function call support to BPF, from Alexei Starovoitov.

11) Add explicit support for GRO HW offloading, from Michael Chan.

12) Support extack generation in more netlink subsystems. From Alexander
    Aring, Quentin Monnet, and Jakub Kicinski.

13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
    Russell King.

14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.

15) Many improvements and simplifications to the NFP driver bpf JIT,
    from Jakub Kicinski.

16) Support for ipv6 non-equal cost multipath routing, from Ido
    Schimmel.

17) Add resource abstration to devlink, from Arkadi Sharshevsky.

18) Packet scheduler classifier shared filter block support, from Jiri
    Pirko.

19) Avoid locking in act_csum, from Davide Caratti.

20) devinet_ioctl() simplifications from Al viro.

21) More TCP bpf improvements from Lawrence Brakmo.

22) Add support for onlink ipv6 route flag, similar to ipv4, from David
    Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
  tls: Add support for encryption using async offload accelerator
  ip6mr: fix stale iterator
  net/sched: kconfig: Remove blank help texts
  openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
  tcp_nv: fix potential integer overflow in tcpnv_acked
  r8169: fix RTL8168EP take too long to complete driver initialization.
  qmi_wwan: Add support for Quectel EP06
  rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
  ipmr: Fix ptrdiff_t print formatting
  ibmvnic: Wait for device response when changing MAC
  qlcnic: fix deadlock bug
  tcp: release sk_frag.page in tcp_disconnect
  ipv4: Get the address of interface correctly.
  net_sched: gen_estimator: fix lockdep splat
  net: macb: Handle HRESP error
  net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
  ipv6: addrconf: break critical section in addrconf_verify_rtnl()
  ipv6: change route cache aging logic
  i40e/i40evf: Update DESC_NEEDED value to reflect larger value
  bnxt_en: cleanup DIM work on device shutdown
  ...

1 files changed, 139 insertions, 102 deletions

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 760d2c0..634c51e 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -190,6 +190,7 @@
  *   MX53  FlexCAN2  03.00.00.00    yes        no        no       no        no
  *   MX6s  FlexCAN3  10.00.12.00    yes       yes        no       no       yes
  *   VF610 FlexCAN3  ?               no       yes        no      yes       yes?
+ * LS1021A FlexCAN2  03.00.04.00     no       yes        no       no       yes
  *
  * Some SOCs do not have the RX_WARN & TX_WARN interrupt line connected.
  */
@@ -279,6 +280,10 @@ struct flexcan_priv {
 	struct clk *clk_per;
 	const struct flexcan_devtype_data *devtype_data;
 	struct regulator *reg_xceiver;
+
+	/* Read and Write APIs */
+	u32 (*read)(void __iomem *addr);
+	void (*write)(u32 val, void __iomem *addr);
 };
 
 static const struct flexcan_devtype_data fsl_p1010_devtype_data = {
@@ -301,6 +306,12 @@ static const struct flexcan_devtype_data fsl_vf610_devtype_data = {
 		FLEXCAN_QUIRK_BROKEN_PERR_STATE,
 };
 
+static const struct flexcan_devtype_data fsl_ls1021a_r2_devtype_data = {
+	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
+		FLEXCAN_QUIRK_DISABLE_MECR | FLEXCAN_QUIRK_BROKEN_PERR_STATE |
+		FLEXCAN_QUIRK_USE_OFF_TIMESTAMP,
+};
+
 static const struct can_bittiming_const flexcan_bittiming_const = {
 	.name = DRV_NAME,
 	.tseg1_min = 4,
@@ -313,39 +324,45 @@ static const struct can_bittiming_const flexcan_bittiming_const = {
 	.brp_inc = 1,
 };
 
-/* Abstract off the read/write for arm versus ppc. This
- * assumes that PPC uses big-endian registers and everything
- * else uses little-endian registers, independent of CPU
- * endianness.
+/* FlexCAN module is essentially modelled as a little-endian IP in most
+ * SoCs, i.e the registers as well as the message buffer areas are
+ * implemented in a little-endian fashion.
+ *
+ * However there are some SoCs (e.g. LS1021A) which implement the FlexCAN
+ * module in a big-endian fashion (i.e the registers as well as the
+ * message buffer areas are implemented in a big-endian way).
+ *
+ * In addition, the FlexCAN module can be found on SoCs having ARM or
+ * PPC cores. So, we need to abstract off the register read/write
+ * functions, ensuring that these cater to all the combinations of module
+ * endianness and underlying CPU endianness.
  */
-#if defined(CONFIG_PPC)
-static inline u32 flexcan_read(void __iomem *addr)
+static inline u32 flexcan_read_be(void __iomem *addr)
 {
-	return in_be32(addr);
+	return ioread32be(addr);
 }
 
-static inline void flexcan_write(u32 val, void __iomem *addr)
+static inline void flexcan_write_be(u32 val, void __iomem *addr)
 {
-	out_be32(addr, val);
+	iowrite32be(val, addr);
 }
-#else
-static inline u32 flexcan_read(void __iomem *addr)
+
+static inline u32 flexcan_read_le(void __iomem *addr)
 {
-	return readl(addr);
+	return ioread32(addr);
 }
 
-static inline void flexcan_write(u32 val, void __iomem *addr)
+static inline void flexcan_write_le(u32 val, void __iomem *addr)
 {
-	writel(val, addr);
+	iowrite32(val, addr);
 }
-#endif
 
 static inline void flexcan_error_irq_enable(const struct flexcan_priv *priv)
 {
 	struct flexcan_regs __iomem *regs = priv->regs;
 	u32 reg_ctrl = (priv->reg_ctrl_default | FLEXCAN_CTRL_ERR_MSK);
 
-	flexcan_write(reg_ctrl, &regs->ctrl);
+	priv->write(reg_ctrl, &regs->ctrl);
 }
 
 static inline void flexcan_error_irq_disable(const struct flexcan_priv *priv)
@@ -353,7 +370,7 @@ static inline void flexcan_error_irq_disable(const struct flexcan_priv *priv)
 	struct flexcan_regs __iomem *regs = priv->regs;
 	u32 reg_ctrl = (priv->reg_ctrl_default & ~FLEXCAN_CTRL_ERR_MSK);
 
-	flexcan_write(reg_ctrl, &regs->ctrl);
+	priv->write(reg_ctrl, &regs->ctrl);
 }
 
 static inline int flexcan_transceiver_enable(const struct flexcan_priv *priv)
@@ -378,14 +395,14 @@ static int flexcan_chip_enable(struct flexcan_priv *priv)
 	unsigned int timeout = FLEXCAN_TIMEOUT_US / 10;
 	u32 reg;
 
-	reg = flexcan_read(&regs->mcr);
+	reg = priv->read(&regs->mcr);
 	reg &= ~FLEXCAN_MCR_MDIS;
-	flexcan_write(reg, &regs->mcr);
+	priv->write(reg, &regs->mcr);
 
-	while (timeout-- && (flexcan_read(&regs->mcr) & FLEXCAN_MCR_LPM_ACK))
+	while (timeout-- && (priv->read(&regs->mcr) & FLEXCAN_MCR_LPM_ACK))
 		udelay(10);
 
-	if (flexcan_read(&regs->mcr) & FLEXCAN_MCR_LPM_ACK)
+	if (priv->read(&regs->mcr) & FLEXCAN_MCR_LPM_ACK)
 		return -ETIMEDOUT;
 
 	return 0;
@@ -397,14 +414,14 @@ static int flexcan_chip_disable(struct flexcan_priv *priv)
 	unsigned int timeout = FLEXCAN_TIMEOUT_US / 10;
 	u32 reg;
 
-	reg = flexcan_read(&regs->mcr);
+	reg = priv->read(&regs->mcr);
 	reg |= FLEXCAN_MCR_MDIS;
-	flexcan_write(reg, &regs->mcr);
+	priv->write(reg, &regs->mcr);
 
-	while (timeout-- && !(flexcan_read(&regs->mcr) & FLEXCAN_MCR_LPM_ACK))
+	while (timeout-- && !(priv->read(&regs->mcr) & FLEXCAN_MCR_LPM_ACK))
 		udelay(10);
 
-	if (!(flexcan_read(&regs->mcr) & FLEXCAN_MCR_LPM_ACK))
+	if (!(priv->read(&regs->mcr) & FLEXCAN_MCR_LPM_ACK))
 		return -ETIMEDOUT;
 
 	return 0;
@@ -416,14 +433,14 @@ static int flexcan_chip_freeze(struct flexcan_priv *priv)
 	unsigned int timeout = 1000 * 1000 * 10 / priv->can.bittiming.bitrate;
 	u32 reg;
 
-	reg = flexcan_read(&regs->mcr);
+	reg = priv->read(&regs->mcr);
 	reg |= FLEXCAN_MCR_HALT;
-	flexcan_write(reg, &regs->mcr);
+	priv->write(reg, &regs->mcr);
 
-	while (timeout-- && !(flexcan_read(&regs->mcr) & FLEXCAN_MCR_FRZ_ACK))
+	while (timeout-- && !(priv->read(&regs->mcr) & FLEXCAN_MCR_FRZ_ACK))
 		udelay(100);
 
-	if (!(flexcan_read(&regs->mcr) & FLEXCAN_MCR_FRZ_ACK))
+	if (!(priv->read(&regs->mcr) & FLEXCAN_MCR_FRZ_ACK))
 		return -ETIMEDOUT;
 
 	return 0;
@@ -435,14 +452,14 @@ static int flexcan_chip_unfreeze(struct flexcan_priv *priv)
 	unsigned int timeout = FLEXCAN_TIMEOUT_US / 10;
 	u32 reg;
 
-	reg = flexcan_read(&regs->mcr);
+	reg = priv->read(&regs->mcr);
 	reg &= ~FLEXCAN_MCR_HALT;
-	flexcan_write(reg, &regs->mcr);
+	priv->write(reg, &regs->mcr);
 
-	while (timeout-- && (flexcan_read(&regs->mcr) & FLEXCAN_MCR_FRZ_ACK))
+	while (timeout-- && (priv->read(&regs->mcr) & FLEXCAN_MCR_FRZ_ACK))
 		udelay(10);
 
-	if (flexcan_read(&regs->mcr) & FLEXCAN_MCR_FRZ_ACK)
+	if (priv->read(&regs->mcr) & FLEXCAN_MCR_FRZ_ACK)
 		return -ETIMEDOUT;
 
 	return 0;
@@ -453,11 +470,11 @@ static int flexcan_chip_softreset(struct flexcan_priv *priv)
 	struct flexcan_regs __iomem *regs = priv->regs;
 	unsigned int timeout = FLEXCAN_TIMEOUT_US / 10;
 
-	flexcan_write(FLEXCAN_MCR_SOFTRST, &regs->mcr);
-	while (timeout-- && (flexcan_read(&regs->mcr) & FLEXCAN_MCR_SOFTRST))
+	priv->write(FLEXCAN_MCR_SOFTRST, &regs->mcr);
+	while (timeout-- && (priv->read(&regs->mcr) & FLEXCAN_MCR_SOFTRST))
 		udelay(10);
 
-	if (flexcan_read(&regs->mcr) & FLEXCAN_MCR_SOFTRST)
+	if (priv->read(&regs->mcr) & FLEXCAN_MCR_SOFTRST)
 		return -ETIMEDOUT;
 
 	return 0;
@@ -468,7 +485,7 @@ static int __flexcan_get_berr_counter(const struct net_device *dev,
 {
 	const struct flexcan_priv *priv = netdev_priv(dev);
 	struct flexcan_regs __iomem *regs = priv->regs;
-	u32 reg = flexcan_read(&regs->ecr);
+	u32 reg = priv->read(&regs->ecr);
 
 	bec->txerr = (reg >> 0) & 0xff;
 	bec->rxerr = (reg >> 8) & 0xff;
@@ -524,24 +541,24 @@ static int flexcan_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (cf->can_dlc > 0) {
 		data = be32_to_cpup((__be32 *)&cf->data[0]);
-		flexcan_write(data, &priv->tx_mb->data[0]);
+		priv->write(data, &priv->tx_mb->data[0]);
 	}
 	if (cf->can_dlc > 4) {
 		data = be32_to_cpup((__be32 *)&cf->data[4]);
-		flexcan_write(data, &priv->tx_mb->data[1]);
+		priv->write(data, &priv->tx_mb->data[1]);
 	}
 
 	can_put_echo_skb(skb, dev, 0);
 
-	flexcan_write(can_id, &priv->tx_mb->can_id);
-	flexcan_write(ctrl, &priv->tx_mb->can_ctrl);
+	priv->write(can_id, &priv->tx_mb->can_id);
+	priv->write(ctrl, &priv->tx_mb->can_ctrl);
 
 	/* Errata ERR005829 step8:
 	 * Write twice INACTIVE(0x8) code to first MB.
 	 */
-	flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE,
+	priv->write(FLEXCAN_MB_CODE_TX_INACTIVE,
 		      &priv->tx_mb_reserved->can_ctrl);
-	flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE,
+	priv->write(FLEXCAN_MB_CODE_TX_INACTIVE,
 		      &priv->tx_mb_reserved->can_ctrl);
 
 	return NETDEV_TX_OK;
@@ -660,7 +677,7 @@ static unsigned int flexcan_mailbox_read(struct can_rx_offload *offload,
 		u32 code;
 
 		do {
-			reg_ctrl = flexcan_read(&mb->can_ctrl);
+			reg_ctrl = priv->read(&mb->can_ctrl);
 		} while (reg_ctrl & FLEXCAN_MB_CODE_RX_BUSY_BIT);
 
 		/* is this MB empty? */
@@ -675,17 +692,17 @@ static unsigned int flexcan_mailbox_read(struct can_rx_offload *offload,
 			offload->dev->stats.rx_errors++;
 		}
 	} else {
-		reg_iflag1 = flexcan_read(&regs->iflag1);
+		reg_iflag1 = priv->read(&regs->iflag1);
 		if (!(reg_iflag1 & FLEXCAN_IFLAG_RX_FIFO_AVAILABLE))
 			return 0;
 
-		reg_ctrl = flexcan_read(&mb->can_ctrl);
+		reg_ctrl = priv->read(&mb->can_ctrl);
 	}
 
 	/* increase timstamp to full 32 bit */
 	*timestamp = reg_ctrl << 16;
 
-	reg_id = flexcan_read(&mb->can_id);
+	reg_id = priv->read(&mb->can_id);
 	if (reg_ctrl & FLEXCAN_MB_CNT_IDE)
 		cf->can_id = ((reg_id >> 0) & CAN_EFF_MASK) | CAN_EFF_FLAG;
 	else
@@ -695,19 +712,19 @@ static unsigned int flexcan_mailbox_read(struct can_rx_offload *offload,
 		cf->can_id |= CAN_RTR_FLAG;
 	cf->can_dlc = get_can_dlc((reg_ctrl >> 16) & 0xf);
 
-	*(__be32 *)(cf->data + 0) = cpu_to_be32(flexcan_read(&mb->data[0]));
-	*(__be32 *)(cf->data + 4) = cpu_to_be32(flexcan_read(&mb->data[1]));
+	*(__be32 *)(cf->data + 0) = cpu_to_be32(priv->read(&mb->data[0]));
+	*(__be32 *)(cf->data + 4) = cpu_to_be32(priv->read(&mb->data[1]));
 
 	/* mark as read */
 	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
 		/* Clear IRQ */
 		if (n < 32)
-			flexcan_write(BIT(n), &regs->iflag1);
+			priv->write(BIT(n), &regs->iflag1);
 		else
-			flexcan_write(BIT(n - 32), &regs->iflag2);
+			priv->write(BIT(n - 32), &regs->iflag2);
 	} else {
-		flexcan_write(FLEXCAN_IFLAG_RX_FIFO_AVAILABLE, &regs->iflag1);
-		flexcan_read(&regs->timer);
+		priv->write(FLEXCAN_IFLAG_RX_FIFO_AVAILABLE, &regs->iflag1);
+		priv->read(&regs->timer);
 	}
 
 	return 1;
@@ -719,8 +736,8 @@ static inline u64 flexcan_read_reg_iflag_rx(struct flexcan_priv *priv)
 	struct flexcan_regs __iomem *regs = priv->regs;
 	u32 iflag1, iflag2;
 
-	iflag2 = flexcan_read(&regs->iflag2) & priv->reg_imask2_default;
-	iflag1 = flexcan_read(&regs->iflag1) & priv->reg_imask1_default &
+	iflag2 = priv->read(&regs->iflag2) & priv->reg_imask2_default;
+	iflag1 = priv->read(&regs->iflag1) & priv->reg_imask1_default &
 		~FLEXCAN_IFLAG_MB(priv->tx_mb_idx);
 
 	return (u64)iflag2 << 32 | iflag1;
@@ -736,7 +753,7 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id)
 	u32 reg_iflag1, reg_esr;
 	enum can_state last_state = priv->can.state;
 
-	reg_iflag1 = flexcan_read(&regs->iflag1);
+	reg_iflag1 = priv->read(&regs->iflag1);
 
 	/* reception interrupt */
 	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
@@ -759,7 +776,8 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id)
 		/* FIFO overflow interrupt */
 		if (reg_iflag1 & FLEXCAN_IFLAG_RX_FIFO_OVERFLOW) {
 			handled = IRQ_HANDLED;
-			flexcan_write(FLEXCAN_IFLAG_RX_FIFO_OVERFLOW, &regs->iflag1);
+			priv->write(FLEXCAN_IFLAG_RX_FIFO_OVERFLOW,
+				    &regs->iflag1);
 			dev->stats.rx_over_errors++;
 			dev->stats.rx_errors++;
 		}
@@ -773,18 +791,18 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id)
 		can_led_event(dev, CAN_LED_EVENT_TX);
 
 		/* after sending a RTR frame MB is in RX mode */
-		flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE,
-			      &priv->tx_mb->can_ctrl);
-		flexcan_write(FLEXCAN_IFLAG_MB(priv->tx_mb_idx), &regs->iflag1);
+		priv->write(FLEXCAN_MB_CODE_TX_INACTIVE,
+			    &priv->tx_mb->can_ctrl);
+		priv->write(FLEXCAN_IFLAG_MB(priv->tx_mb_idx), &regs->iflag1);
 		netif_wake_queue(dev);
 	}
 
-	reg_esr = flexcan_read(&regs->esr);
+	reg_esr = priv->read(&regs->esr);
 
 	/* ACK all bus error and state change IRQ sources */
 	if (reg_esr & FLEXCAN_ESR_ALL_INT) {
 		handled = IRQ_HANDLED;
-		flexcan_write(reg_esr & FLEXCAN_ESR_ALL_INT, &regs->esr);
+		priv->write(reg_esr & FLEXCAN_ESR_ALL_INT, &regs->esr);
 	}
 
 	/* state change interrupt or broken error state quirk fix is enabled */
@@ -846,7 +864,7 @@ static void flexcan_set_bittiming(struct net_device *dev)
 	struct flexcan_regs __iomem *regs = priv->regs;
 	u32 reg;
 
-	reg = flexcan_read(&regs->ctrl);
+	reg = priv->read(&regs->ctrl);
 	reg &= ~(FLEXCAN_CTRL_PRESDIV(0xff) |
 		 FLEXCAN_CTRL_RJW(0x3) |
 		 FLEXCAN_CTRL_PSEG1(0x7) |
@@ -870,11 +888,11 @@ static void flexcan_set_bittiming(struct net_device *dev)
 		reg |= FLEXCAN_CTRL_SMP;
 
 	netdev_dbg(dev, "writing ctrl=0x%08x\n", reg);
-	flexcan_write(reg, &regs->ctrl);
+	priv->write(reg, &regs->ctrl);
 
 	/* print chip status */
 	netdev_dbg(dev, "%s: mcr=0x%08x ctrl=0x%08x\n", __func__,
-		   flexcan_read(&regs->mcr), flexcan_read(&regs->ctrl));
+		   priv->read(&regs->mcr), priv->read(&regs->ctrl));
 }
 
 /* flexcan_chip_start
@@ -913,7 +931,7 @@ static int flexcan_chip_start(struct net_device *dev)
 	 * choose format C
 	 * set max mailbox number
 	 */
-	reg_mcr = flexcan_read(&regs->mcr);
+	reg_mcr = priv->read(&regs->mcr);
 	reg_mcr &= ~FLEXCAN_MCR_MAXMB(0xff);
 	reg_mcr |= FLEXCAN_MCR_FRZ | FLEXCAN_MCR_HALT | FLEXCAN_MCR_SUPV |
 		FLEXCAN_MCR_WRN_EN | FLEXCAN_MCR_SRX_DIS | FLEXCAN_MCR_IRMQ |
@@ -927,7 +945,7 @@ static int flexcan_chip_start(struct net_device *dev)
 			FLEXCAN_MCR_MAXMB(priv->tx_mb_idx);
 	}
 	netdev_dbg(dev, "%s: writing mcr=0x%08x", __func__, reg_mcr);
-	flexcan_write(reg_mcr, &regs->mcr);
+	priv->write(reg_mcr, &regs->mcr);
 
 	/* CTRL
 	 *
@@ -940,7 +958,7 @@ static int flexcan_chip_start(struct net_device *dev)
 	 * enable bus off interrupt
 	 * (== FLEXCAN_CTRL_ERR_STATE)
 	 */
-	reg_ctrl = flexcan_read(&regs->ctrl);
+	reg_ctrl = priv->read(&regs->ctrl);
 	reg_ctrl &= ~FLEXCAN_CTRL_TSYN;
 	reg_ctrl |= FLEXCAN_CTRL_BOFF_REC | FLEXCAN_CTRL_LBUF |
 		FLEXCAN_CTRL_ERR_STATE;
@@ -960,45 +978,45 @@ static int flexcan_chip_start(struct net_device *dev)
 	/* leave interrupts disabled for now */
 	reg_ctrl &= ~FLEXCAN_CTRL_ERR_ALL;
 	netdev_dbg(dev, "%s: writing ctrl=0x%08x", __func__, reg_ctrl);
-	flexcan_write(reg_ctrl, &regs->ctrl);
+	priv->write(reg_ctrl, &regs->ctrl);
 
 	if ((priv->devtype_data->quirks & FLEXCAN_QUIRK_ENABLE_EACEN_RRS)) {
-		reg_ctrl2 = flexcan_read(&regs->ctrl2);
+		reg_ctrl2 = priv->read(&regs->ctrl2);
 		reg_ctrl2 |= FLEXCAN_CTRL2_EACEN | FLEXCAN_CTRL2_RRS;
-		flexcan_write(reg_ctrl2, &regs->ctrl2);
+		priv->write(reg_ctrl2, &regs->ctrl2);
 	}
 
 	/* clear and invalidate all mailboxes first */
 	for (i = priv->tx_mb_idx; i < ARRAY_SIZE(regs->mb); i++) {
-		flexcan_write(FLEXCAN_MB_CODE_RX_INACTIVE,
-			      &regs->mb[i].can_ctrl);
+		priv->write(FLEXCAN_MB_CODE_RX_INACTIVE,
+			    &regs->mb[i].can_ctrl);
 	}
 
 	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_USE_OFF_TIMESTAMP) {
 		for (i = priv->offload.mb_first; i <= priv->offload.mb_last; i++)
-			flexcan_write(FLEXCAN_MB_CODE_RX_EMPTY,
-				      &regs->mb[i].can_ctrl);
+			priv->write(FLEXCAN_MB_CODE_RX_EMPTY,
+				    &regs->mb[i].can_ctrl);
 	}
 
 	/* Errata ERR005829: mark first TX mailbox as INACTIVE */
-	flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE,
-		      &priv->tx_mb_reserved->can_ctrl);
+	priv->write(FLEXCAN_MB_CODE_TX_INACTIVE,
+		    &priv->tx_mb_reserved->can_ctrl);
 
 	/* mark TX mailbox as INACTIVE */
-	flexcan_write(FLEXCAN_MB_CODE_TX_INACTIVE,
-		      &priv->tx_mb->can_ctrl);
+	priv->write(FLEXCAN_MB_CODE_TX_INACTIVE,
+		    &priv->tx_mb->can_ctrl);
 
 	/* acceptance mask/acceptance code (accept everything) */
-	flexcan_write(0x0, &regs->rxgmask);
-	flexcan_write(0x0, &regs->rx14mask);
-	flexcan_write(0x0, &regs->rx15mask);
+	priv->write(0x0, &regs->rxgmask);
+	priv->write(0x0, &regs->rx14mask);
+	priv->write(0x0, &regs->rx15mask);
 
 	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_DISABLE_RXFG)
-		flexcan_write(0x0, &regs->rxfgmask);
+		priv->write(0x0, &regs->rxfgmask);
 
 	/* clear acceptance filters */
 	for (i = 0; i < ARRAY_SIZE(regs->mb); i++)
-		flexcan_write(0, &regs->rximr[i]);
+		priv->write(0, &regs->rximr[i]);
 
 	/* On Vybrid, disable memory error detection interrupts
 	 * and freeze mode.
@@ -1011,16 +1029,16 @@ static int flexcan_chip_start(struct net_device *dev)
 		 * and Correction of Memory Errors" to write to
 		 * MECR register
 		 */
-		reg_ctrl2 = flexcan_read(&regs->ctrl2);
+		reg_ctrl2 = priv->read(&regs->ctrl2);
 		reg_ctrl2 |= FLEXCAN_CTRL2_ECRWRE;
-		flexcan_write(reg_ctrl2, &regs->ctrl2);
+		priv->write(reg_ctrl2, &regs->ctrl2);
 
-		reg_mecr = flexcan_read(&regs->mecr);
+		reg_mecr = priv->read(&regs->mecr);
 		reg_mecr &= ~FLEXCAN_MECR_ECRWRDIS;
-		flexcan_write(reg_mecr, &regs->mecr);
+		priv->write(reg_mecr, &regs->mecr);
 		reg_mecr &= ~(FLEXCAN_MECR_NCEFAFRZ | FLEXCAN_MECR_HANCEI_MSK |
 			      FLEXCAN_MECR_FANCEI_MSK);
-		flexcan_write(reg_mecr, &regs->mecr);
+		priv->write(reg_mecr, &regs->mecr);
 	}
 
 	err = flexcan_transceiver_enable(priv);
@@ -1036,14 +1054,14 @@ static int flexcan_chip_start(struct net_device *dev)
 
 	/* enable interrupts atomically */
 	disable_irq(dev->irq);
-	flexcan_write(priv->reg_ctrl_default, &regs->ctrl);
-	flexcan_write(priv->reg_imask1_default, &regs->imask1);
-	flexcan_write(priv->reg_imask2_default, &regs->imask2);
+	priv->write(priv->reg_ctrl_default, &regs->ctrl);
+	priv->write(priv->reg_imask1_default, &regs->imask1);
+	priv->write(priv->reg_imask2_default, &regs->imask2);
 	enable_irq(dev->irq);
 
 	/* print chip status */
 	netdev_dbg(dev, "%s: reading mcr=0x%08x ctrl=0x%08x\n", __func__,
-		   flexcan_read(&regs->mcr), flexcan_read(&regs->ctrl));
+		   priv->read(&regs->mcr), priv->read(&regs->ctrl));
 
 	return 0;
 
@@ -1068,10 +1086,10 @@ static void flexcan_chip_stop(struct net_device *dev)
 	flexcan_chip_disable(priv);
 
 	/* Disable all interrupts */
-	flexcan_write(0, &regs->imask2);
-	flexcan_write(0, &regs->imask1);
-	flexcan_write(priv->reg_ctrl_default & ~FLEXCAN_CTRL_ERR_ALL,
-		      &regs->ctrl);
+	priv->write(0, &regs->imask2);
+	priv->write(0, &regs->imask1);
+	priv->write(priv->reg_ctrl_default & ~FLEXCAN_CTRL_ERR_ALL,
+		    &regs->ctrl);
 
 	flexcan_transceiver_disable(priv);
 	priv->can.state = CAN_STATE_STOPPED;
@@ -1186,26 +1204,26 @@ static int register_flexcandev(struct net_device *dev)
 	err = flexcan_chip_disable(priv);
 	if (err)
 		goto out_disable_per;
-	reg = flexcan_read(&regs->ctrl);
+	reg = priv->read(&regs->ctrl);
 	reg |= FLEXCAN_CTRL_CLK_SRC;
-	flexcan_write(reg, &regs->ctrl);
+	priv->write(reg, &regs->ctrl);
 
 	err = flexcan_chip_enable(priv);
 	if (err)
 		goto out_chip_disable;
 
 	/* set freeze, halt and activate FIFO, restrict register access */
-	reg = flexcan_read(&regs->mcr);
+	reg = priv->read(&regs->mcr);
 	reg |= FLEXCAN_MCR_FRZ | FLEXCAN_MCR_HALT |
 		FLEXCAN_MCR_FEN | FLEXCAN_MCR_SUPV;
-	flexcan_write(reg, &regs->mcr);
+	priv->write(reg, &regs->mcr);
 
 	/* Currently we only support newer versions of this core
 	 * featuring a RX hardware FIFO (although this driver doesn't
 	 * make use of it on some cores). Older cores, found on some
 	 * Coldfire derivates are not tested.
 	 */
-	reg = flexcan_read(&regs->mcr);
+	reg = priv->read(&regs->mcr);
 	if (!(reg & FLEXCAN_MCR_FEN)) {
 		netdev_err(dev, "Could not enable RX FIFO, unsupported core\n");
 		err = -ENODEV;
@@ -1233,8 +1251,12 @@ static void unregister_flexcandev(struct net_device *dev)
 static const struct of_device_id flexcan_of_match[] = {
 	{ .compatible = "fsl,imx6q-flexcan", .data = &fsl_imx6q_devtype_data, },
 	{ .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, },
+	{ .compatible = "fsl,imx53-flexcan", .data = &fsl_p1010_devtype_data, },
+	{ .compatible = "fsl,imx35-flexcan", .data = &fsl_p1010_devtype_data, },
+	{ .compatible = "fsl,imx25-flexcan", .data = &fsl_p1010_devtype_data, },
 	{ .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, },
 	{ .compatible = "fsl,vf610-flexcan", .data = &fsl_vf610_devtype_data, },
+	{ .compatible = "fsl,ls1021ar2-flexcan", .data = &fsl_ls1021a_r2_devtype_data, },
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, flexcan_of_match);
@@ -1314,6 +1336,21 @@ static int flexcan_probe(struct platform_device *pdev)
 	dev->flags |= IFF_ECHO;
 
 	priv = netdev_priv(dev);
+
+	if (of_property_read_bool(pdev->dev.of_node, "big-endian")) {
+		priv->read = flexcan_read_be;
+		priv->write = flexcan_write_be;
+	} else {
+		if (of_device_is_compatible(pdev->dev.of_node,
+					    "fsl,p1010-flexcan")) {
+			priv->read = flexcan_read_be;
+			priv->write = flexcan_write_be;
+		} else {
+			priv->read = flexcan_read_le;
+			priv->write = flexcan_write_le;
+		}
+	}
+
 	priv->can.clock.freq = clock_freq;
 	priv->can.bittiming_const = &flexcan_bittiming_const;
 	priv->can.do_set_mode = flexcan_set_mode;