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path: root/drivers/net/ethernet/renesas
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Diffstat (limited to 'drivers/net/ethernet/renesas')
-rw-r--r--drivers/net/ethernet/renesas/ravb_main.c107
1 files changed, 56 insertions, 51 deletions
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 0f7b1d503618..e5805e0d8e13 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1800,6 +1800,59 @@ static int ravb_compute_gti(struct net_device *ndev)
return 0;
}
+/* Set tx and rx clock internal delay modes */
+static void ravb_parse_delay_mode(struct device_node *np, struct net_device *ndev)
+{
+ struct ravb_private *priv = netdev_priv(ndev);
+ bool explicit_delay = false;
+ u32 delay;
+
+ if (!priv->info->internal_delay)
+ return;
+
+ if (!of_property_read_u32(np, "rx-internal-delay-ps", &delay)) {
+ /* Valid values are 0 and 1800, according to DT bindings */
+ priv->rxcidm = !!delay;
+ explicit_delay = true;
+ }
+ if (!of_property_read_u32(np, "tx-internal-delay-ps", &delay)) {
+ /* Valid values are 0 and 2000, according to DT bindings */
+ priv->txcidm = !!delay;
+ explicit_delay = true;
+ }
+
+ if (explicit_delay)
+ return;
+
+ /* Fall back to legacy rgmii-*id behavior */
+ if (priv->phy_interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ priv->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) {
+ priv->rxcidm = 1;
+ priv->rgmii_override = 1;
+ }
+
+ if (priv->phy_interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ priv->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) {
+ priv->txcidm = 1;
+ priv->rgmii_override = 1;
+ }
+}
+
+static void ravb_set_delay_mode(struct net_device *ndev)
+{
+ struct ravb_private *priv = netdev_priv(ndev);
+ u32 set = 0;
+
+ if (!priv->info->internal_delay)
+ return;
+
+ if (priv->rxcidm)
+ set |= APSR_RDM;
+ if (priv->txcidm)
+ set |= APSR_TDM;
+ ravb_modify(ndev, APSR, APSR_RDM | APSR_TDM, set);
+}
+
/* Network device open function for Ethernet AVB */
static int ravb_open(struct net_device *ndev)
{
@@ -1811,6 +1864,8 @@ static int ravb_open(struct net_device *ndev)
if (info->nc_queues)
napi_enable(&priv->napi[RAVB_NC]);
+ ravb_set_delay_mode(ndev);
+
/* Device init */
error = ravb_dmac_init(ndev);
if (error)
@@ -2531,41 +2586,6 @@ static int ravb_set_config_mode(struct net_device *ndev)
return error;
}
-/* Set tx and rx clock internal delay modes */
-static void ravb_parse_delay_mode(struct device_node *np, struct net_device *ndev)
-{
- struct ravb_private *priv = netdev_priv(ndev);
- bool explicit_delay = false;
- u32 delay;
-
- if (!of_property_read_u32(np, "rx-internal-delay-ps", &delay)) {
- /* Valid values are 0 and 1800, according to DT bindings */
- priv->rxcidm = !!delay;
- explicit_delay = true;
- }
- if (!of_property_read_u32(np, "tx-internal-delay-ps", &delay)) {
- /* Valid values are 0 and 2000, according to DT bindings */
- priv->txcidm = !!delay;
- explicit_delay = true;
- }
-
- if (explicit_delay)
- return;
-
- /* Fall back to legacy rgmii-*id behavior */
- if (priv->phy_interface == PHY_INTERFACE_MODE_RGMII_ID ||
- priv->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) {
- priv->rxcidm = 1;
- priv->rgmii_override = 1;
- }
-
- if (priv->phy_interface == PHY_INTERFACE_MODE_RGMII_ID ||
- priv->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) {
- priv->txcidm = 1;
- priv->rgmii_override = 1;
- }
-}
-
static int ravb_setup_irq(struct ravb_private *priv, const char *irq_name,
const char *ch, int *irq, irq_handler_t handler)
{
@@ -2650,18 +2670,6 @@ static int ravb_setup_irqs(struct ravb_private *priv)
return ravb_setup_irq(priv, "ch19", "ch19:tx_nc", &irq, ravb_nc_interrupt);
}
-static void ravb_set_delay_mode(struct net_device *ndev)
-{
- struct ravb_private *priv = netdev_priv(ndev);
- u32 set = 0;
-
- if (priv->rxcidm)
- set |= APSR_RDM;
- if (priv->txcidm)
- set |= APSR_TDM;
- ravb_modify(ndev, APSR, APSR_RDM | APSR_TDM, set);
-}
-
static int ravb_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@@ -2785,10 +2793,7 @@ static int ravb_probe(struct platform_device *pdev)
if (error)
goto out_rpm_put;
- if (info->internal_delay) {
- ravb_parse_delay_mode(np, ndev);
- ravb_set_delay_mode(ndev);
- }
+ ravb_parse_delay_mode(np, ndev);
/* Allocate descriptor base address table */
priv->desc_bat_size = sizeof(struct ravb_desc) * DBAT_ENTRY_NUM;