Commit db37c6e5 authored by Inochi Amaoto's avatar Inochi Amaoto Committed by Jakub Kicinski
Browse files

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



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

Fixes: 543009e2 ("net: stmmac: dwmac-sophgo: Add support for Sophgo SG2042 SoC")
Signed-off-by: default avatarInochi Amaoto <inochiama@gmail.com>
Tested-by: default avatarHan Gao <rabenda.cn@gmail.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20251114003805.494387-4-inochiama@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 24afd782

drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c

+19 −1
Original line number Diff line number Diff line
@@ -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 */ }

};