net/mdio/mdio-mux-meson-gxl.c

1 // SPDX-License-Identifier: GPL-2.0
10 #include <linux/mdio-mux.h>
59 	writel(REG4_PWRUPRSTSIG, priv->regs + ETH_REG4);  in gxl_enable_internal_mdio()
60 	writel(val, priv->regs + ETH_REG3);  in gxl_enable_internal_mdio()
66 	 * drivers/net/phy/meson-gxl.c to properly match the PHY.  in gxl_enable_internal_mdio()
69 	       priv->regs + ETH_REG2);  in gxl_enable_internal_mdio()
73 	writel(val, priv->regs + ETH_REG3);  in gxl_enable_internal_mdio()
74 	writel(0, priv->regs + ETH_REG4);  in gxl_enable_internal_mdio()
82 	/* Reset the mdio bus mux to the external phy */  in gxl_enable_external_mdio()
83 	writel(0, priv->regs + ETH_REG3);  in gxl_enable_external_mdio()
102 		return -EINVAL;  in gxl_mdio_switch_fn()
109 	{ .compatible = "amlogic,gxl-mdio-mux", },
116 	struct device *dev = &pdev->dev;  in gxl_mdio_mux_probe()
123 		return -ENOMEM;  in gxl_mdio_mux_probe()
126 	priv->regs = devm_platform_ioremap_resource(pdev, 0);  in gxl_mdio_mux_probe()
127 	if (IS_ERR(priv->regs))  in gxl_mdio_mux_probe()
128 		return PTR_ERR(priv->regs);  in gxl_mdio_mux_probe()
135 	ret = mdio_mux_init(dev, dev->of_node, gxl_mdio_switch_fn,  in gxl_mdio_mux_probe()
136 			    &priv->mux_handle, dev, NULL);  in gxl_mdio_mux_probe()
138 		dev_err_probe(dev, ret, "mdio multiplexer init failed\n");  in gxl_mdio_mux_probe()
147 	mdio_mux_uninit(priv->mux_handle);  in gxl_mdio_mux_remove()
154 		.name	= "gxl-mdio-mux",
160 MODULE_DESCRIPTION("Amlogic GXL MDIO multiplexer driver");