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path: root/drivers/net/wan/fsl_ucc_hdlc.c
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Diffstat (limited to 'drivers/net/wan/fsl_ucc_hdlc.c')
-rw-r--r--drivers/net/wan/fsl_ucc_hdlc.c64
1 files changed, 33 insertions, 31 deletions
diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
index cda1b4ce6b21..22edea6ca4b8 100644
--- a/drivers/net/wan/fsl_ucc_hdlc.c
+++ b/drivers/net/wan/fsl_ucc_hdlc.c
@@ -306,9 +306,8 @@ static int uhdlc_init(struct ucc_hdlc_private *priv)
else
bd_status = R_E_S | R_I_S | R_W_S;
- iowrite16be(bd_status, &priv->rx_bd_base[i].status);
- iowrite32be(priv->dma_rx_addr + i * MAX_RX_BUF_LENGTH,
- &priv->rx_bd_base[i].buf);
+ priv->rx_bd_base[i].status = cpu_to_be16(bd_status);
+ priv->rx_bd_base[i].buf = cpu_to_be32(priv->dma_rx_addr + i * MAX_RX_BUF_LENGTH);
}
for (i = 0; i < TX_BD_RING_LEN; i++) {
@@ -317,10 +316,10 @@ static int uhdlc_init(struct ucc_hdlc_private *priv)
else
bd_status = T_I_S | T_TC_S | T_W_S;
- iowrite16be(bd_status, &priv->tx_bd_base[i].status);
- iowrite32be(priv->dma_tx_addr + i * MAX_RX_BUF_LENGTH,
- &priv->tx_bd_base[i].buf);
+ priv->tx_bd_base[i].status = cpu_to_be16(bd_status);
+ priv->tx_bd_base[i].buf = cpu_to_be32(priv->dma_tx_addr + i * MAX_RX_BUF_LENGTH);
}
+ dma_wmb();
return 0;
@@ -352,10 +351,10 @@ static netdev_tx_t ucc_hdlc_tx(struct sk_buff *skb, struct net_device *dev)
{
hdlc_device *hdlc = dev_to_hdlc(dev);
struct ucc_hdlc_private *priv = (struct ucc_hdlc_private *)hdlc->priv;
- struct qe_bd __iomem *bd;
+ struct qe_bd *bd;
u16 bd_status;
unsigned long flags;
- u16 *proto_head;
+ __be16 *proto_head;
switch (dev->type) {
case ARPHRD_RAWHDLC:
@@ -368,14 +367,14 @@ static netdev_tx_t ucc_hdlc_tx(struct sk_buff *skb, struct net_device *dev)
skb_push(skb, HDLC_HEAD_LEN);
- proto_head = (u16 *)skb->data;
+ proto_head = (__be16 *)skb->data;
*proto_head = htons(DEFAULT_HDLC_HEAD);
dev->stats.tx_bytes += skb->len;
break;
case ARPHRD_PPP:
- proto_head = (u16 *)skb->data;
+ proto_head = (__be16 *)skb->data;
if (*proto_head != htons(DEFAULT_PPP_HEAD)) {
dev->stats.tx_dropped++;
dev_kfree_skb(skb);
@@ -398,9 +397,10 @@ static netdev_tx_t ucc_hdlc_tx(struct sk_buff *skb, struct net_device *dev)
netdev_sent_queue(dev, skb->len);
spin_lock_irqsave(&priv->lock, flags);
+ dma_rmb();
/* Start from the next BD that should be filled */
bd = priv->curtx_bd;
- bd_status = ioread16be(&bd->status);
+ bd_status = be16_to_cpu(bd->status);
/* Save the skb pointer so we can free it later */
priv->tx_skbuff[priv->skb_curtx] = skb;
@@ -415,8 +415,8 @@ static netdev_tx_t ucc_hdlc_tx(struct sk_buff *skb, struct net_device *dev)
/* set bd status and length */
bd_status = (bd_status & T_W_S) | T_R_S | T_I_S | T_L_S | T_TC_S;
- iowrite16be(skb->len, &bd->length);
- iowrite16be(bd_status, &bd->status);
+ bd->length = cpu_to_be16(skb->len);
+ bd->status = cpu_to_be16(bd_status);
/* Move to next BD in the ring */
if (!(bd_status & T_W_S))
@@ -458,8 +458,9 @@ static int hdlc_tx_done(struct ucc_hdlc_private *priv)
u16 bd_status;
int tx_restart = 0;
+ dma_rmb();
bd = priv->dirty_tx;
- bd_status = ioread16be(&bd->status);
+ bd_status = be16_to_cpu(bd->status);
/* Normal processing. */
while ((bd_status & T_R_S) == 0) {
@@ -503,7 +504,7 @@ static int hdlc_tx_done(struct ucc_hdlc_private *priv)
bd += 1;
else
bd = priv->tx_bd_base;
- bd_status = ioread16be(&bd->status);
+ bd_status = be16_to_cpu(bd->status);
}
priv->dirty_tx = bd;
@@ -524,8 +525,9 @@ static int hdlc_rx_done(struct ucc_hdlc_private *priv, int rx_work_limit)
u16 length, howmany = 0;
u8 *bdbuffer;
+ dma_rmb();
bd = priv->currx_bd;
- bd_status = ioread16be(&bd->status);
+ bd_status = be16_to_cpu(bd->status);
/* while there are received buffers and BD is full (~R_E) */
while (!((bd_status & (R_E_S)) || (--rx_work_limit < 0))) {
@@ -549,7 +551,7 @@ static int hdlc_rx_done(struct ucc_hdlc_private *priv, int rx_work_limit)
}
bdbuffer = priv->rx_buffer +
(priv->currx_bdnum * MAX_RX_BUF_LENGTH);
- length = ioread16be(&bd->length);
+ length = be16_to_cpu(bd->length);
switch (dev->type) {
case ARPHRD_RAWHDLC:
@@ -593,7 +595,7 @@ static int hdlc_rx_done(struct ucc_hdlc_private *priv, int rx_work_limit)
netif_receive_skb(skb);
recycle:
- iowrite16be((bd_status & R_W_S) | R_E_S | R_I_S, &bd->status);
+ bd->status = cpu_to_be16((bd_status & R_W_S) | R_E_S | R_I_S);
/* update to point at the next bd */
if (bd_status & R_W_S) {
@@ -608,8 +610,9 @@ recycle:
bd += 1;
}
- bd_status = ioread16be(&bd->status);
+ bd_status = be16_to_cpu(bd->status);
}
+ dma_rmb();
priv->currx_bd = bd;
return howmany;
@@ -721,7 +724,7 @@ static int uhdlc_open(struct net_device *dev)
/* Enable the TDM port */
if (priv->tsa)
- utdm->si_regs->siglmr1_h |= (0x1 << utdm->tdm_port);
+ qe_setbits_8(&utdm->si_regs->siglmr1_h, 0x1 << utdm->tdm_port);
priv->hdlc_busy = 1;
netif_device_attach(priv->ndev);
@@ -812,7 +815,7 @@ static int uhdlc_close(struct net_device *dev)
(u8)QE_CR_PROTOCOL_UNSPECIFIED, 0);
if (priv->tsa)
- utdm->si_regs->siglmr1_h &= ~(0x1 << utdm->tdm_port);
+ qe_clrbits_8(&utdm->si_regs->siglmr1_h, 0x1 << utdm->tdm_port);
ucc_fast_disable(priv->uccf, COMM_DIR_RX | COMM_DIR_TX);
@@ -848,7 +851,7 @@ static int ucc_hdlc_attach(struct net_device *dev, unsigned short encoding,
#ifdef CONFIG_PM
static void store_clk_config(struct ucc_hdlc_private *priv)
{
- struct qe_mux *qe_mux_reg = &qe_immr->qmx;
+ struct qe_mux __iomem *qe_mux_reg = &qe_immr->qmx;
/* store si clk */
priv->cmxsi1cr_h = ioread32be(&qe_mux_reg->cmxsi1cr_h);
@@ -863,7 +866,7 @@ static void store_clk_config(struct ucc_hdlc_private *priv)
static void resume_clk_config(struct ucc_hdlc_private *priv)
{
- struct qe_mux *qe_mux_reg = &qe_immr->qmx;
+ struct qe_mux __iomem *qe_mux_reg = &qe_immr->qmx;
memcpy_toio(qe_mux_reg->cmxucr, priv->cmxucr, 4 * sizeof(u32));
@@ -990,9 +993,8 @@ static int uhdlc_resume(struct device *dev)
else
bd_status = R_E_S | R_I_S | R_W_S;
- iowrite16be(bd_status, &priv->rx_bd_base[i].status);
- iowrite32be(priv->dma_rx_addr + i * MAX_RX_BUF_LENGTH,
- &priv->rx_bd_base[i].buf);
+ priv->rx_bd_base[i].status = cpu_to_be16(bd_status);
+ priv->rx_bd_base[i].buf = cpu_to_be32(priv->dma_rx_addr + i * MAX_RX_BUF_LENGTH);
}
for (i = 0; i < TX_BD_RING_LEN; i++) {
@@ -1001,10 +1003,10 @@ static int uhdlc_resume(struct device *dev)
else
bd_status = T_I_S | T_TC_S | T_W_S;
- iowrite16be(bd_status, &priv->tx_bd_base[i].status);
- iowrite32be(priv->dma_tx_addr + i * MAX_RX_BUF_LENGTH,
- &priv->tx_bd_base[i].buf);
+ priv->tx_bd_base[i].status = cpu_to_be16(bd_status);
+ priv->tx_bd_base[i].buf = cpu_to_be32(priv->dma_tx_addr + i * MAX_RX_BUF_LENGTH);
}
+ dma_wmb();
/* if hdlc is busy enable TX and RX */
if (priv->hdlc_busy == 1) {
@@ -1018,7 +1020,7 @@ static int uhdlc_resume(struct device *dev)
/* Enable the TDM port */
if (priv->tsa)
- utdm->si_regs->siglmr1_h |= (0x1 << utdm->tdm_port);
+ qe_setbits_8(&utdm->si_regs->siglmr1_h, 0x1 << utdm->tdm_port);
}
napi_enable(&priv->napi);
@@ -1229,7 +1231,7 @@ static int ucc_hdlc_probe(struct platform_device *pdev)
dev->watchdog_timeo = 2 * HZ;
hdlc->attach = ucc_hdlc_attach;
hdlc->xmit = ucc_hdlc_tx;
- netif_napi_add(dev, &uhdlc_priv->napi, ucc_hdlc_poll, 32);
+ netif_napi_add_weight(dev, &uhdlc_priv->napi, ucc_hdlc_poll, 32);
if (register_hdlc_device(dev)) {
ret = -ENOBUFS;
pr_err("ucc_hdlc: unable to register hdlc device\n");
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