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path: root/drivers/net/ethernet/renesas/ravb_main.c
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Diffstat (limited to 'drivers/net/ethernet/renesas/ravb_main.c')
-rw-r--r--drivers/net/ethernet/renesas/ravb_main.c96
1 files changed, 50 insertions, 46 deletions
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index f9297224e527..0f7b1d503618 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1756,6 +1756,50 @@ static const struct ethtool_ops ravb_ethtool_ops = {
.set_wol = ravb_set_wol,
};
+static void ravb_set_gti(struct net_device *ndev)
+{
+ struct ravb_private *priv = netdev_priv(ndev);
+ const struct ravb_hw_info *info = priv->info;
+
+ if (!(info->gptp || info->ccc_gac))
+ return;
+
+ ravb_write(ndev, priv->gti_tiv, GTI);
+
+ /* Request GTI loading */
+ ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI);
+}
+
+static int ravb_compute_gti(struct net_device *ndev)
+{
+ struct ravb_private *priv = netdev_priv(ndev);
+ const struct ravb_hw_info *info = priv->info;
+ struct device *dev = ndev->dev.parent;
+ unsigned long rate;
+ u64 inc;
+
+ if (!(info->gptp || info->ccc_gac))
+ return 0;
+
+ if (info->gptp_ref_clk)
+ rate = clk_get_rate(priv->gptp_clk);
+ else
+ rate = clk_get_rate(priv->clk);
+ if (!rate)
+ return -EINVAL;
+
+ inc = div64_ul(1000000000ULL << 20, rate);
+
+ if (inc < GTI_TIV_MIN || inc > GTI_TIV_MAX) {
+ dev_err(dev, "gti.tiv increment 0x%llx is outside the range 0x%x - 0x%x\n",
+ inc, GTI_TIV_MIN, GTI_TIV_MAX);
+ return -EINVAL;
+ }
+ priv->gti_tiv = inc;
+
+ return 0;
+}
+
/* Network device open function for Ethernet AVB */
static int ravb_open(struct net_device *ndev)
{
@@ -1773,6 +1817,8 @@ static int ravb_open(struct net_device *ndev)
goto out_napi_off;
ravb_emac_init(ndev);
+ ravb_set_gti(ndev);
+
/* Initialise PTP Clock driver */
if (info->gptp)
ravb_ptp_init(ndev, priv->pdev);
@@ -2464,34 +2510,6 @@ static const struct of_device_id ravb_match_table[] = {
};
MODULE_DEVICE_TABLE(of, ravb_match_table);
-static int ravb_set_gti(struct net_device *ndev)
-{
- struct ravb_private *priv = netdev_priv(ndev);
- const struct ravb_hw_info *info = priv->info;
- struct device *dev = ndev->dev.parent;
- unsigned long rate;
- uint64_t inc;
-
- if (info->gptp_ref_clk)
- rate = clk_get_rate(priv->gptp_clk);
- else
- rate = clk_get_rate(priv->clk);
- if (!rate)
- return -EINVAL;
-
- inc = div64_ul(1000000000ULL << 20, rate);
-
- if (inc < GTI_TIV_MIN || inc > GTI_TIV_MAX) {
- dev_err(dev, "gti.tiv increment 0x%llx is outside the range 0x%x - 0x%x\n",
- inc, GTI_TIV_MIN, GTI_TIV_MAX);
- return -EINVAL;
- }
-
- ravb_write(ndev, inc, GTI);
-
- return 0;
-}
-
static int ravb_set_config_mode(struct net_device *ndev)
{
struct ravb_private *priv = netdev_priv(ndev);
@@ -2763,15 +2781,9 @@ static int ravb_probe(struct platform_device *pdev)
if (error)
goto out_rpm_put;
- if (info->gptp || info->ccc_gac) {
- /* Set GTI value */
- error = ravb_set_gti(ndev);
- if (error)
- goto out_rpm_put;
-
- /* Request GTI loading */
- ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI);
- }
+ error = ravb_compute_gti(ndev);
+ if (error)
+ goto out_rpm_put;
if (info->internal_delay) {
ravb_parse_delay_mode(np, ndev);
@@ -2984,15 +2996,7 @@ static int ravb_resume(struct device *dev)
if (ret)
return ret;
- if (info->gptp || info->ccc_gac) {
- /* Set GTI value */
- ret = ravb_set_gti(ndev);
- if (ret)
- return ret;
-
- /* Request GTI loading */
- ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI);
- }
+ ravb_set_gti(ndev);
if (info->internal_delay)
ravb_set_delay_mode(ndev);