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Message-Id: <E1vFt4x-0000000ChpA-1Edr@rmk-PC.armlinux.org.uk>
Date: Mon, 03 Nov 2025 11:50:31 +0000
From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>,
Heiner Kallweit <hkallweit1@...il.com>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>,
Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Fabio Estevam <festevam@...il.com>,
imx@...ts.linux.dev,
Jakub Kicinski <kuba@...nel.org>,
Jan Petrous <jan.petrous@....nxp.com>,
linux-arm-kernel@...ts.infradead.org,
linux-stm32@...md-mailman.stormreply.com,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
netdev@...r.kernel.org,
Paolo Abeni <pabeni@...hat.com>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
s32@....com,
Sascha Hauer <s.hauer@...gutronix.de>,
Shawn Guo <shawnguo@...nel.org>
Subject: [PATCH net-next 08/11] net: stmmac: imx: use
stmmac_get_phy_intf_sel()
i.MX implementations other than IMX8DXL involve setting the dwmac core
phy_intf_sel input. Use stmmac_get_phy_intf_sel() to decode the PHY
interface mode to the phy_intf_sel value, validating the result, and
passing it into the implementation specific .set_intf_mode() method
rather than each .set_intf_mode() method doing this.
Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
.../net/ethernet/stmicro/stmmac/dwmac-imx.c | 43 +++++++++++--------
1 file changed, 25 insertions(+), 18 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
index f1cfccd4269c..dc28486a7af0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
@@ -45,7 +45,8 @@ struct imx_dwmac_ops {
bool mac_rgmii_txclk_auto_adj;
int (*fix_soc_reset)(struct stmmac_priv *priv, void __iomem *ioaddr);
- int (*set_intf_mode)(struct plat_stmmacenet_data *plat_dat);
+ int (*set_intf_mode)(struct plat_stmmacenet_data *plat_dat,
+ u8 phy_intf_sel);
void (*fix_mac_speed)(void *priv, int speed, unsigned int mode);
};
@@ -62,26 +63,23 @@ struct imx_priv_data {
struct plat_stmmacenet_data *plat_dat;
};
-static int imx8mp_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
+static int imx8mp_set_intf_mode(struct plat_stmmacenet_data *plat_dat,
+ u8 phy_intf_sel)
{
struct imx_priv_data *dwmac = plat_dat->bsp_priv;
- u8 phy_intf_sel;
int val;
switch (plat_dat->phy_interface) {
case PHY_INTERFACE_MODE_MII:
- phy_intf_sel = PHY_INTF_SEL_GMII_MII;
val = 0;
break;
case PHY_INTERFACE_MODE_RMII:
- phy_intf_sel = PHY_INTF_SEL_RMII;
val = dwmac->rmii_refclk_ext ? 0 : GPR_ENET_QOS_CLK_TX_CLK_SEL;
break;
case PHY_INTERFACE_MODE_RGMII:
case PHY_INTERFACE_MODE_RGMII_ID:
case PHY_INTERFACE_MODE_RGMII_RXID:
case PHY_INTERFACE_MODE_RGMII_TXID:
- phy_intf_sel = PHY_INTF_SEL_RGMII;
val = GPR_ENET_QOS_RGMII_EN;
break;
default:
@@ -98,7 +96,8 @@ static int imx8mp_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
};
static int
-imx8dxl_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
+imx8dxl_set_intf_mode(struct plat_stmmacenet_data *plat_dat,
+ u8 phy_intf_sel)
{
int ret = 0;
@@ -106,16 +105,13 @@ imx8dxl_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
return ret;
}
-static int imx93_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
+static int imx93_set_intf_mode(struct plat_stmmacenet_data *plat_dat,
+ u8 phy_intf_sel)
{
struct imx_priv_data *dwmac = plat_dat->bsp_priv;
- u8 phy_intf_sel;
int val, ret;
switch (plat_dat->phy_interface) {
- case PHY_INTERFACE_MODE_MII:
- phy_intf_sel = PHY_INTF_SEL_GMII_MII;
- break;
case PHY_INTERFACE_MODE_RMII:
if (dwmac->rmii_refclk_ext) {
ret = regmap_clear_bits(dwmac->intf_regmap,
@@ -125,13 +121,12 @@ static int imx93_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
if (ret)
return ret;
}
- phy_intf_sel = PHY_INTF_SEL_RMII;
break;
+ case PHY_INTERFACE_MODE_MII:
case PHY_INTERFACE_MODE_RGMII:
case PHY_INTERFACE_MODE_RGMII_ID:
case PHY_INTERFACE_MODE_RGMII_RXID:
case PHY_INTERFACE_MODE_RGMII_TXID:
- phy_intf_sel = PHY_INTF_SEL_RGMII;
break;
default:
dev_dbg(dwmac->dev, "imx dwmac doesn't support %s interface\n",
@@ -176,12 +171,24 @@ static int imx_dwmac_init(struct platform_device *pdev, void *priv)
{
struct plat_stmmacenet_data *plat_dat;
struct imx_priv_data *dwmac = priv;
- int ret;
-
- plat_dat = dwmac->plat_dat;
+ phy_interface_t interface;
+ int phy_intf_sel, ret;
if (dwmac->ops->set_intf_mode) {
- ret = dwmac->ops->set_intf_mode(plat_dat);
+ plat_dat = dwmac->plat_dat;
+ interface = plat_dat->phy_interface;
+
+ phy_intf_sel = stmmac_get_phy_intf_sel(interface);
+ if (phy_intf_sel != PHY_INTF_SEL_GMII_MII &&
+ phy_intf_sel != PHY_INTF_SEL_RGMII &&
+ phy_intf_sel != PHY_INTF_SEL_RMII) {
+ dev_dbg(dwmac->dev,
+ "imx dwmac doesn't support %s interface\n",
+ phy_modes(interface));
+ return phy_intf_sel < 0 ? phy_intf_sel : -EINVAL;
+ }
+
+ ret = dwmac->ops->set_intf_mode(plat_dat, phy_intf_sel);
if (ret)
return ret;
}
--
2.47.3
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