[PATCH linux-next 04/10] net: ethernet: ti: cpsw: add support for port interface mode selection phy
From: Grygorii Strashko <grygorii.strashko@ti.com>
Date: 2018-11-26 00:16:09
Also in:
linux-arm-kernel, linux-omap, lkml, netdev
Subsystem:
networking drivers, the rest, ti ethernet switch driver (cpsw) · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Add support for port interface mode selection phy (phy-gmii-sel): - try to request interface mode selection phy from Port DT node and fail silently if not defined and old CONFIG_TI_CPSW_PHY_SEL driver enabled. - use new phy if requested successfully. Cc: Kishon Vijay Abraham I <redacted> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> --- drivers/net/ethernet/ti/cpsw.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index e4aa030..ceaec56 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c@@ -26,6 +26,7 @@ #include <linux/netdevice.h> #include <linux/net_tstamp.h> #include <linux/phy.h> +#include <linux/phy/phy.h> #include <linux/workqueue.h> #include <linux/delay.h> #include <linux/pm_runtime.h>
@@ -387,6 +388,7 @@ struct cpsw_slave_data { int phy_if; u8 mac_addr[ETH_ALEN]; u16 dual_emac_res_vlan; /* Reserved VLAN for DualEMAC */ + struct phy *ifphy; }; struct cpsw_platform_data {
@@ -1624,7 +1626,12 @@ static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv) phy_start(slave->phy); /* Configure GMII_SEL register */ - cpsw_phy_sel(cpsw->dev, slave->phy->interface, slave->slave_num); + if (!IS_ERR(slave->data->ifphy)) + phy_set_mode_ext(slave->data->ifphy, PHY_MODE_ETHERNET, + slave->data->phy_if); + else + cpsw_phy_sel(cpsw->dev, slave->phy->interface, + slave->slave_num); } static inline void cpsw_add_default_vlan(struct cpsw_priv *priv)
@@ -3274,6 +3281,16 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, if (strcmp(slave_node->name, "slave")) continue; + slave_data->ifphy = devm_of_phy_get(&pdev->dev, slave_node, + NULL); + if (!IS_ENABLED(CONFIG_TI_CPSW_PHY_SEL) && + IS_ERR(slave_data->ifphy)) { + ret = PTR_ERR(slave_data->ifphy); + dev_err(&pdev->dev, + "%d: Error retrieving port phy: %d\n", i, ret); + return ret; + } + slave_data->phy_node = of_parse_phandle(slave_node, "phy-handle", 0); parp = of_get_property(slave_node, "phy_id", &lenp);
--
2.10.5