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net: stmmac: dwmac-sophgo: Add phy interface filter

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As the SG2042 has an internal rx delay, the delay should be removed
when initializing the mac, otherwise the phy will be misconfigurated.

Fixes: 543009e2d4 ("net: stmmac: dwmac-sophgo: Add support for Sophgo SG2042 SoC")
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Tested-by: Han Gao <rabenda.cn@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251114003805.494387-4-inochiama@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Inochi Amaoto
2025-11-14 08:38:05 +08:00
committed by Jakub Kicinski
parent 24afd7827e
commit db37c6e510
1 changed files with 19 additions and 1 deletions
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drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c
+19 -1
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@@ -7,11 +7,16 @@
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/property.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
#include "stmmac_platform.h"
struct sophgo_dwmac_data {
bool has_internal_rx_delay;
};
static int sophgo_sg2044_dwmac_init(struct platform_device *pdev,
struct plat_stmmacenet_data *plat_dat,
struct stmmac_resources *stmmac_res)
@@ -31,6 +36,7 @@ static int sophgo_sg2044_dwmac_init(struct platform_device *pdev,
static int sophgo_dwmac_probe(struct platform_device *pdev)
{
struct plat_stmmacenet_data *plat_dat;
const struct sophgo_dwmac_data *data;
struct stmmac_resources stmmac_res;
struct device *dev = &pdev->dev;
int ret;
@@ -49,11 +55,23 @@ static int sophgo_dwmac_probe(struct platform_device *pdev)
if (ret)
return ret;
data = device_get_match_data(&pdev->dev);
if (data && data->has_internal_rx_delay) {
plat_dat->phy_interface = phy_fix_phy_mode_for_mac_delays(plat_dat->phy_interface,
false, true);
if (plat_dat->phy_interface == PHY_INTERFACE_MODE_NA)
return -EINVAL;
}
return stmmac_dvr_probe(dev, plat_dat, &stmmac_res);
}
static const struct sophgo_dwmac_data sg2042_dwmac_data = {
.has_internal_rx_delay = true,
};
static const struct of_device_id sophgo_dwmac_match[] = {
{ .compatible = "sophgo,sg2042-dwmac" },
{ .compatible = "sophgo,sg2042-dwmac", .data = &sg2042_dwmac_data },
{ .compatible = "sophgo,sg2044-dwmac" },
{ /* sentinel */ }
};