summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/ti/cpsw.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ethernet/ti/cpsw.c')
-rw-r--r--drivers/net/ethernet/ti/cpsw.c111
1 files changed, 53 insertions, 58 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index a39131f494ec..7d8dd0d2182e 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -33,8 +33,6 @@
#include <linux/of_net.h>
#include <linux/of_device.h>
#include <linux/if_vlan.h>
-#include <linux/mfd/syscon.h>
-#include <linux/regmap.h>
#include <linux/pinctrl/consumer.h>
@@ -761,17 +759,25 @@ requeue:
dev_kfree_skb_any(new_skb);
}
-static irqreturn_t cpsw_interrupt(int irq, void *dev_id)
+static irqreturn_t cpsw_tx_interrupt(int irq, void *dev_id)
{
struct cpsw_priv *priv = dev_id;
- int value = irq - priv->irqs_table[0];
- /* NOTICE: Ending IRQ here. The trick with the 'value' variable above
- * is to make sure we will always write the correct value to the EOI
- * register. Namely 0 for RX_THRESH Interrupt, 1 for RX Interrupt, 2
- * for TX Interrupt and 3 for MISC Interrupt.
- */
- cpdma_ctlr_eoi(priv->dma, value);
+ cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
+ cpdma_chan_process(priv->txch, 128);
+
+ priv = cpsw_get_slave_priv(priv, 1);
+ if (priv)
+ cpdma_chan_process(priv->txch, 128);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t cpsw_rx_interrupt(int irq, void *dev_id)
+{
+ struct cpsw_priv *priv = dev_id;
+
+ cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
cpsw_intr_disable(priv);
if (priv->irq_enabled == true) {
@@ -1624,7 +1630,8 @@ static void cpsw_ndo_poll_controller(struct net_device *ndev)
cpsw_intr_disable(priv);
cpdma_ctlr_int_ctrl(priv->dma, false);
- cpsw_interrupt(ndev->irq, priv);
+ cpsw_rx_interrupt(priv->irqs_table[0], priv);
+ cpsw_tx_interrupt(priv->irqs_table[1], priv);
cpdma_ctlr_int_ctrl(priv->dma, true);
cpsw_intr_enable(priv);
}
@@ -1927,36 +1934,6 @@ static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv,
slave->port_vlan = data->dual_emac_res_vlan;
}
-#define AM33XX_CTRL_MAC_LO_REG(id) (0x630 + 0x8 * id)
-#define AM33XX_CTRL_MAC_HI_REG(id) (0x630 + 0x8 * id + 0x4)
-
-static int cpsw_am33xx_cm_get_macid(struct device *dev, int slave,
- u8 *mac_addr)
-{
- u32 macid_lo;
- u32 macid_hi;
- struct regmap *syscon;
-
- syscon = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon");
- if (IS_ERR(syscon)) {
- if (PTR_ERR(syscon) == -ENODEV)
- return 0;
- return PTR_ERR(syscon);
- }
-
- regmap_read(syscon, AM33XX_CTRL_MAC_LO_REG(slave), &macid_lo);
- regmap_read(syscon, AM33XX_CTRL_MAC_HI_REG(slave), &macid_hi);
-
- mac_addr[5] = (macid_lo >> 8) & 0xff;
- mac_addr[4] = macid_lo & 0xff;
- mac_addr[3] = (macid_hi >> 24) & 0xff;
- mac_addr[2] = (macid_hi >> 16) & 0xff;
- mac_addr[1] = (macid_hi >> 8) & 0xff;
- mac_addr[0] = macid_hi & 0xff;
-
- return 0;
-}
-
static int cpsw_probe_dt(struct cpsw_platform_data *data,
struct platform_device *pdev)
{
@@ -2081,7 +2058,8 @@ no_phy_slave:
memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN);
} else {
if (of_machine_is_compatible("ti,am33xx")) {
- ret = cpsw_am33xx_cm_get_macid(&pdev->dev, i,
+ ret = cpsw_am33xx_cm_get_macid(&pdev->dev,
+ 0x630, i,
slave_data->mac_addr);
if (ret)
return ret;
@@ -2192,7 +2170,8 @@ static int cpsw_probe(struct platform_device *pdev)
void __iomem *ss_regs;
struct resource *res, *ss_res;
u32 slave_offset, sliver_offset, slave_size;
- int ret = 0, i, k = 0;
+ int ret = 0, i;
+ int irq;
ndev = alloc_etherdev(sizeof(struct cpsw_priv));
if (!ndev) {
@@ -2374,31 +2353,47 @@ static int cpsw_probe(struct platform_device *pdev)
goto clean_dma_ret;
}
- ndev->irq = platform_get_irq(pdev, 0);
+ ndev->irq = platform_get_irq(pdev, 1);
if (ndev->irq < 0) {
dev_err(priv->dev, "error getting irq resource\n");
ret = -ENOENT;
goto clean_ale_ret;
}
- while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, k))) {
- if (k >= ARRAY_SIZE(priv->irqs_table)) {
- ret = -EINVAL;
- goto clean_ale_ret;
- }
+ /* Grab RX and TX IRQs. Note that we also have RX_THRESHOLD and
+ * MISC IRQs which are always kept disabled with this driver so
+ * we will not request them.
+ *
+ * If anyone wants to implement support for those, make sure to
+ * first request and append them to irqs_table array.
+ */
- ret = devm_request_irq(&pdev->dev, res->start, cpsw_interrupt,
- 0, dev_name(&pdev->dev), priv);
- if (ret < 0) {
- dev_err(priv->dev, "error attaching irq (%d)\n", ret);
- goto clean_ale_ret;
- }
+ /* RX IRQ */
+ irq = platform_get_irq(pdev, 1);
+ if (irq < 0)
+ goto clean_ale_ret;
- priv->irqs_table[k] = res->start;
- k++;
+ priv->irqs_table[0] = irq;
+ ret = devm_request_irq(&pdev->dev, irq, cpsw_rx_interrupt,
+ 0, dev_name(&pdev->dev), priv);
+ if (ret < 0) {
+ dev_err(priv->dev, "error attaching irq (%d)\n", ret);
+ goto clean_ale_ret;
}
- priv->num_irqs = k;
+ /* TX IRQ */
+ irq = platform_get_irq(pdev, 2);
+ if (irq < 0)
+ goto clean_ale_ret;
+
+ priv->irqs_table[1] = irq;
+ ret = devm_request_irq(&pdev->dev, irq, cpsw_tx_interrupt,
+ 0, dev_name(&pdev->dev), priv);
+ if (ret < 0) {
+ dev_err(priv->dev, "error attaching irq (%d)\n", ret);
+ goto clean_ale_ret;
+ }
+ priv->num_irqs = 2;
ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;