1 // SPDX-License-Identifier: GPL-2.0-only
3  * ST SPEAr1310-miphy driver
12 #include <linux/dma-mapping.h>
14 #include <linux/mfd/syscon.h>
97 	PCIE,  enumerator
101 	/* instance id of this phy */
102 	u32				id;  member
103 	/* phy mode: 0 for SATA 1 for PCIe */
115 	regmap_update_bits(priv->misc, SPEAR1310_PCIE_MIPHY_CFG_1,  in spear1310_miphy_pcie_init()
119 	switch (priv->id) {  in spear1310_miphy_pcie_init()
130 		return -EINVAL;  in spear1310_miphy_pcie_init()
133 	regmap_update_bits(priv->misc, SPEAR1310_PCIE_SATA_CFG,  in spear1310_miphy_pcie_init()
134 			   SPEAR1310_PCIE_CFG_MASK(priv->id), val);  in spear1310_miphy_pcie_init()
141 	regmap_update_bits(priv->misc, SPEAR1310_PCIE_SATA_CFG,  in spear1310_miphy_pcie_exit()
142 			   SPEAR1310_PCIE_CFG_MASK(priv->id), 0);  in spear1310_miphy_pcie_exit()
144 	regmap_update_bits(priv->misc, SPEAR1310_PCIE_MIPHY_CFG_1,  in spear1310_miphy_pcie_exit()
155 	if (priv->mode == PCIE)  in spear1310_miphy_init()
166 	if (priv->mode == PCIE)  in spear1310_miphy_exit()
173 	{ .compatible = "st,spear1310-miphy" },
189 	if (args->args_count < 1) {  in spear1310_miphy_xlate()
191 		return ERR_PTR(-ENODEV);  in spear1310_miphy_xlate()
194 	priv->mode = args->args[0];  in spear1310_miphy_xlate()
196 	if (priv->mode != SATA && priv->mode != PCIE) {  in spear1310_miphy_xlate()
198 		return ERR_PTR(-ENODEV);  in spear1310_miphy_xlate()
201 	return priv->phy;  in spear1310_miphy_xlate()
206 	struct device *dev = &pdev->dev;  in spear1310_miphy_probe()
212 		return -ENOMEM;  in spear1310_miphy_probe()
214 	priv->misc =  in spear1310_miphy_probe()
215 		syscon_regmap_lookup_by_phandle(dev->of_node, "misc");  in spear1310_miphy_probe()
216 	if (IS_ERR(priv->misc)) {  in spear1310_miphy_probe()
218 		return PTR_ERR(priv->misc);  in spear1310_miphy_probe()
221 	if (of_property_read_u32(dev->of_node, "phy-id", &priv->id)) {  in spear1310_miphy_probe()
222 		dev_err(dev, "failed to find phy id\n");  in spear1310_miphy_probe()
223 		return -EINVAL;  in spear1310_miphy_probe()
226 	priv->phy = devm_phy_create(dev, NULL, &spear1310_miphy_ops);  in spear1310_miphy_probe()
227 	if (IS_ERR(priv->phy)) {  in spear1310_miphy_probe()
228 		dev_err(dev, "failed to create SATA PCIe PHY\n");  in spear1310_miphy_probe()
229 		return PTR_ERR(priv->phy);  in spear1310_miphy_probe()
233 	phy_set_drvdata(priv->phy, priv);  in spear1310_miphy_probe()
248 		.name = "spear1310-miphy",
255 MODULE_DESCRIPTION("ST SPEAR1310-MIPHY driver");