On 3/24/22 10:57, Robert Marko wrote:
Add support for handling SFP TX disable for MVNETA in the same fashion as
to what MVPP2 is doing in order to enable using SFP-s.
This allows using ethernet on SFP only boards.
Signed-off-by: Robert Marko <robert.ma...@sartura.hr>
Reviewed-by: Stefan Roese <s...@denx.de>
Thanks,
Stefan
---
Changes in v3:
* Check whether the SFP node is enabled
Changes in v2:
* Parse the standard SFP node for TX disable GPIO instead of using a
custom property
drivers/net/mvneta.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/net/mvneta.c b/drivers/net/mvneta.c
index 4a4268c2b2..edd818338c 100644
--- a/drivers/net/mvneta.c
+++ b/drivers/net/mvneta.c
@@ -286,6 +286,7 @@ struct mvneta_port {
struct phy_device *phydev;
#if CONFIG_IS_ENABLED(DM_GPIO)
struct gpio_desc phy_reset_gpio;
+ struct gpio_desc sfp_tx_disable_gpio;
#endif
struct mii_dev *bus;
};
@@ -1693,6 +1694,9 @@ static int mvneta_probe(struct udevice *dev)
{
struct eth_pdata *pdata = dev_get_plat(dev);
struct mvneta_port *pp = dev_get_priv(dev);
+#if CONFIG_IS_ENABLED(DM_GPIO)
+ struct ofnode_phandle_args sfp_args;
+#endif
void *blob = (void *)gd->fdt_blob;
int node = dev_of_offset(dev);
struct mii_dev *bus;
@@ -1767,6 +1771,11 @@ static int mvneta_probe(struct udevice *dev)
return ret;
#if CONFIG_IS_ENABLED(DM_GPIO)
+ ret = dev_read_phandle_with_args(dev, "sfp", NULL, 0, 0, &sfp_args);
+ if (!ret && ofnode_is_enabled(sfp_args.node))
+ gpio_request_by_name_nodev(sfp_args.node, "tx-disable-gpio", 0,
+ &pp->sfp_tx_disable_gpio,
GPIOD_IS_OUT);
+
gpio_request_by_name(dev, "phy-reset-gpios", 0,
&pp->phy_reset_gpio, GPIOD_IS_OUT);
@@ -1775,6 +1784,9 @@ static int mvneta_probe(struct udevice *dev)
mdelay(10);
dm_gpio_set_value(&pp->phy_reset_gpio, 0);
}
+
+ if (dm_gpio_is_valid(&pp->sfp_tx_disable_gpio))
+ dm_gpio_set_value(&pp->sfp_tx_disable_gpio, 0);
#endif
return board_network_enable(bus);
Viele Grüße,
Stefan Roese
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-51 Fax: (+49)-8142-66989-80 Email: s...@denx.de
