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net: stmmac: Add glue layer for Sophgo SG2044 SoC

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Adds Sophgo dwmac driver support on the Sophgo SG2044 SoC.

Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/20250307011623.440792-5-inochiama@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Inochi Amaoto 2025-03-07 09:16:17 +08:00 committed by Jakub Kicinski
parent 9ef17cafc3
commit a22221ef5d
3 changed files with 87 additions and 0 deletions
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11
drivers/net/ethernet/stmicro/stmmac/Kconfig
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@ -181,6 +181,17 @@ config DWMAC_SOCFPGA
for the stmmac device driver. This driver is used for
arria5 and cyclone5 FPGA SoCs.
config DWMAC_SOPHGO
tristate "Sophgo dwmac support"
depends on OF && (ARCH_SOPHGO || COMPILE_TEST)
default m if ARCH_SOPHGO
help
Support for ethernet controllers on Sophgo RISC-V SoCs
This selects the Sophgo SoC specific glue layer support
for the stmmac device driver. This driver is used for the
ethernet controllers on various Sophgo SoCs.
config DWMAC_STARFIVE
tristate "StarFive dwmac support"
depends on OF && (ARCH_STARFIVE || COMPILE_TEST)

1
drivers/net/ethernet/stmicro/stmmac/Makefile
View File

@ -24,6 +24,7 @@ obj-$(CONFIG_DWMAC_ROCKCHIP) += dwmac-rk.o
obj-$(CONFIG_DWMAC_RZN1) += dwmac-rzn1.o
obj-$(CONFIG_DWMAC_S32) += dwmac-s32.o
obj-$(CONFIG_DWMAC_SOCFPGA) += dwmac-altr-socfpga.o
obj-$(CONFIG_DWMAC_SOPHGO) += dwmac-sophgo.o
obj-$(CONFIG_DWMAC_STARFIVE) += dwmac-starfive.o
obj-$(CONFIG_DWMAC_STI) += dwmac-sti.o
obj-$(CONFIG_DWMAC_STM32) += dwmac-stm32.o

75
drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c Normal file
View File

@ -0,0 +1,75 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Sophgo DWMAC platform driver
*
* Copyright (C) 2024 Inochi Amaoto <inochiama@gmail.com>
*/
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/platform_device.h>
#include "stmmac_platform.h"
static int sophgo_sg2044_dwmac_init(struct platform_device *pdev,
struct plat_stmmacenet_data *plat_dat,
struct stmmac_resources *stmmac_res)
{
plat_dat->clk_tx_i = devm_clk_get_enabled(&pdev->dev, "tx");
if (IS_ERR(plat_dat->clk_tx_i))
return dev_err_probe(&pdev->dev, PTR_ERR(plat_dat->clk_tx_i),
"failed to get tx clock\n");
plat_dat->flags |= STMMAC_FLAG_SPH_DISABLE;
plat_dat->set_clk_tx_rate = stmmac_set_clk_tx_rate;
plat_dat->multicast_filter_bins = 0;
plat_dat->unicast_filter_entries = 1;
return 0;
}
static int sophgo_dwmac_probe(struct platform_device *pdev)
{
struct plat_stmmacenet_data *plat_dat;
struct stmmac_resources stmmac_res;
struct device *dev = &pdev->dev;
int ret;
ret = stmmac_get_platform_resources(pdev, &stmmac_res);
if (ret)
return dev_err_probe(dev, ret,
"failed to get platform resources\n");
plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);
if (IS_ERR(plat_dat))
return dev_err_probe(dev, PTR_ERR(plat_dat),
"failed to parse DT parameters\n");
ret = sophgo_sg2044_dwmac_init(pdev, plat_dat, &stmmac_res);
if (ret)
return ret;
return stmmac_dvr_probe(dev, plat_dat, &stmmac_res);
}
static const struct of_device_id sophgo_dwmac_match[] = {
{ .compatible = "sophgo,sg2044-dwmac" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, sophgo_dwmac_match);
static struct platform_driver sophgo_dwmac_driver = {
.probe = sophgo_dwmac_probe,
.remove = stmmac_pltfr_remove,
.driver = {
.name = "sophgo-dwmac",
.pm = &stmmac_pltfr_pm_ops,
.of_match_table = sophgo_dwmac_match,
},
};
module_platform_driver(sophgo_dwmac_driver);
MODULE_AUTHOR("Inochi Amaoto <inochiama@gmail.com>");
MODULE_DESCRIPTION("Sophgo DWMAC platform driver");
MODULE_LICENSE("GPL");