1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Freescale QorIQ AHCI SATA platform driver
20 #include "ahci.h"
22 #define DRV_NAME "ahci-qoriq"
72 	{ .compatible = "fsl,ls1021a-ahci", .data = (void *)AHCI_LS1021A},
73 	{ .compatible = "fsl,ls1028a-ahci", .data = (void *)AHCI_LS1028A},
74 	{ .compatible = "fsl,ls1043a-ahci", .data = (void *)AHCI_LS1043A},
75 	{ .compatible = "fsl,ls2080a-ahci", .data = (void *)AHCI_LS2080A},
76 	{ .compatible = "fsl,ls1046a-ahci", .data = (void *)AHCI_LS1046A},
77 	{ .compatible = "fsl,ls1088a-ahci", .data = (void *)AHCI_LS1088A},
78 	{ .compatible = "fsl,ls2088a-ahci", .data = (void *)AHCI_LS2088A},
79 	{ .compatible = "fsl,lx2160a-ahci", .data = (void *)AHCI_LX2160A},
93 	const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context);  in ahci_qoriq_hardreset()
94 	void __iomem *port_mmio = ahci_port_base(link->ap);  in ahci_qoriq_hardreset()
96 	struct ata_port *ap = link->ap;  in ahci_qoriq_hardreset()
97 	struct ahci_port_priv *pp = ap->private_data;  in ahci_qoriq_hardreset()
98 	struct ahci_host_priv *hpriv = ap->host->private_data;  in ahci_qoriq_hardreset()
99 	struct ahci_qoriq_priv *qoriq_priv = hpriv->plat_data;  in ahci_qoriq_hardreset()
100 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;  in ahci_qoriq_hardreset()
104 	bool ls1021a_workaround = (qoriq_priv->type == AHCI_LS1021A);  in ahci_qoriq_hardreset()
106 	hpriv->stop_engine(ap);  in ahci_qoriq_hardreset()
110 	 * A-009042: The device detection initialization sequence  in ahci_qoriq_hardreset()
125 	ata_tf_init(link->device, &tf);  in ahci_qoriq_hardreset()
143 	hpriv->start_engine(ap);  in ahci_qoriq_hardreset()
168 	struct ahci_qoriq_priv *qpriv = hpriv->plat_data;  in ahci_qoriq_phy_init()
169 	void __iomem *reg_base = hpriv->mmio;  in ahci_qoriq_phy_init()
171 	switch (qpriv->type) {  in ahci_qoriq_phy_init()
173 		if (!(qpriv->ecc_addr || ecc_initialized))  in ahci_qoriq_phy_init()
174 			return -EINVAL;  in ahci_qoriq_phy_init()
175 		else if (qpriv->ecc_addr && !ecc_initialized)  in ahci_qoriq_phy_init()
176 			writel(SATA_ECC_DISABLE, qpriv->ecc_addr);  in ahci_qoriq_phy_init()
183 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
189 		if (!(qpriv->ecc_addr || ecc_initialized))  in ahci_qoriq_phy_init()
190 			return -EINVAL;  in ahci_qoriq_phy_init()
191 		else if (qpriv->ecc_addr && !ecc_initialized)  in ahci_qoriq_phy_init()
192 			writel(readl(qpriv->ecc_addr) |  in ahci_qoriq_phy_init()
194 			       qpriv->ecc_addr);  in ahci_qoriq_phy_init()
199 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
208 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
213 		if (!(qpriv->ecc_addr || ecc_initialized))  in ahci_qoriq_phy_init()
214 			return -EINVAL;  in ahci_qoriq_phy_init()
215 		else if (qpriv->ecc_addr && !ecc_initialized)  in ahci_qoriq_phy_init()
216 			writel(readl(qpriv->ecc_addr) |  in ahci_qoriq_phy_init()
218 			       qpriv->ecc_addr);  in ahci_qoriq_phy_init()
223 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
230 		if (!(qpriv->ecc_addr || ecc_initialized))  in ahci_qoriq_phy_init()
231 			return -EINVAL;  in ahci_qoriq_phy_init()
232 		else if (qpriv->ecc_addr && !ecc_initialized)  in ahci_qoriq_phy_init()
233 			writel(readl(qpriv->ecc_addr) |  in ahci_qoriq_phy_init()
235 			       qpriv->ecc_addr);  in ahci_qoriq_phy_init()
240 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
249 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
260 	struct device_node *np = pdev->dev.of_node;  in ahci_qoriq_probe()
262 	struct device *dev = &pdev->dev;  in ahci_qoriq_probe()
274 	acpi_id = acpi_match_device(ahci_qoriq_acpi_match, &pdev->dev);  in ahci_qoriq_probe()
276 		return -ENODEV;  in ahci_qoriq_probe()
280 		return -ENOMEM;  in ahci_qoriq_probe()
283 		qoriq_priv->type = (unsigned long)of_id->data;  in ahci_qoriq_probe()
285 		qoriq_priv->type = (enum ahci_qoriq_type)acpi_id->driver_data;  in ahci_qoriq_probe()
290 						   "sata-ecc");  in ahci_qoriq_probe()
292 			qoriq_priv->ecc_addr =  in ahci_qoriq_probe()
294 			if (IS_ERR(qoriq_priv->ecc_addr))  in ahci_qoriq_probe()
295 				return PTR_ERR(qoriq_priv->ecc_addr);  in ahci_qoriq_probe()
299 	if (device_get_dma_attr(&pdev->dev) == DEV_DMA_COHERENT)  in ahci_qoriq_probe()
300 		qoriq_priv->is_dmacoherent = true;  in ahci_qoriq_probe()
306 	hpriv->plat_data = qoriq_priv;  in ahci_qoriq_probe()
328 	struct ahci_host_priv *hpriv = host->private_data;  in ahci_qoriq_resume()
372 MODULE_DESCRIPTION("Freescale QorIQ AHCI SATA platform driver");