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>
98 	PCIE,  enumerator
104 	/* phy mode: 0 for SATA 1 for PCIe */
105 	enum spear1310_miphy_mode	mode;  member
116 	regmap_update_bits(priv->misc, SPEAR1310_PCIE_MIPHY_CFG_1,  in spear1310_miphy_pcie_init()
120 	switch (priv->id) {  in spear1310_miphy_pcie_init()
131 		return -EINVAL;  in spear1310_miphy_pcie_init()
134 	regmap_update_bits(priv->misc, SPEAR1310_PCIE_SATA_CFG,  in spear1310_miphy_pcie_init()
135 			   SPEAR1310_PCIE_CFG_MASK(priv->id), val);  in spear1310_miphy_pcie_init()
142 	regmap_update_bits(priv->misc, SPEAR1310_PCIE_SATA_CFG,  in spear1310_miphy_pcie_exit()
143 			   SPEAR1310_PCIE_CFG_MASK(priv->id), 0);  in spear1310_miphy_pcie_exit()
145 	regmap_update_bits(priv->misc, SPEAR1310_PCIE_MIPHY_CFG_1,  in spear1310_miphy_pcie_exit()
156 	if (priv->mode == PCIE)  in spear1310_miphy_init()
167 	if (priv->mode == PCIE)  in spear1310_miphy_exit()
174 	{ .compatible = "st,spear1310-miphy" },
190 	if (args->args_count < 1) {  in spear1310_miphy_xlate()
192 		return ERR_PTR(-ENODEV);  in spear1310_miphy_xlate()
195 	priv->mode = args->args[0];  in spear1310_miphy_xlate()
197 	if (priv->mode != SATA && priv->mode != PCIE) {  in spear1310_miphy_xlate()
198 		dev_err(dev, "DT did not pass correct phy mode\n");  in spear1310_miphy_xlate()
199 		return ERR_PTR(-ENODEV);  in spear1310_miphy_xlate()
202 	return priv->phy;  in spear1310_miphy_xlate()
207 	struct device *dev = &pdev->dev;  in spear1310_miphy_probe()
213 		return -ENOMEM;  in spear1310_miphy_probe()
215 	priv->misc =  in spear1310_miphy_probe()
216 		syscon_regmap_lookup_by_phandle(dev->of_node, "misc");  in spear1310_miphy_probe()
217 	if (IS_ERR(priv->misc)) {  in spear1310_miphy_probe()
219 		return PTR_ERR(priv->misc);  in spear1310_miphy_probe()
222 	if (of_property_read_u32(dev->of_node, "phy-id", &priv->id)) {  in spear1310_miphy_probe()
224 		return -EINVAL;  in spear1310_miphy_probe()
227 	priv->phy = devm_phy_create(dev, NULL, &spear1310_miphy_ops);  in spear1310_miphy_probe()
228 	if (IS_ERR(priv->phy)) {  in spear1310_miphy_probe()
229 		dev_err(dev, "failed to create SATA PCIe PHY\n");  in spear1310_miphy_probe()
230 		return PTR_ERR(priv->phy);  in spear1310_miphy_probe()
234 	phy_set_drvdata(priv->phy, priv);  in spear1310_miphy_probe()
249 		.name = "spear1310-miphy",
256 MODULE_DESCRIPTION("ST SPEAR1310-MIPHY driver");