1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Freescale QorIQ AHCI SATA platform driver
18 #include "ahci.h"
20 #define DRV_NAME "ahci-qoriq"
22 /* port register definition */
31 /* port register default value */
70 	{ .compatible = "fsl,ls1021a-ahci", .data = (void *)AHCI_LS1021A},
71 	{ .compatible = "fsl,ls1028a-ahci", .data = (void *)AHCI_LS1028A},
72 	{ .compatible = "fsl,ls1043a-ahci", .data = (void *)AHCI_LS1043A},
73 	{ .compatible = "fsl,ls2080a-ahci", .data = (void *)AHCI_LS2080A},
74 	{ .compatible = "fsl,ls1046a-ahci", .data = (void *)AHCI_LS1046A},
75 	{ .compatible = "fsl,ls1088a-ahci", .data = (void *)AHCI_LS1088A},
76 	{ .compatible = "fsl,ls2088a-ahci", .data = (void *)AHCI_LS2088A},
77 	{ .compatible = "fsl,lx2160a-ahci", .data = (void *)AHCI_LX2160A},
91 	const unsigned int *timing = sata_ehc_deb_timing(&link->eh_context);  in ahci_qoriq_hardreset()
92 	void __iomem *port_mmio = ahci_port_base(link->ap);  in ahci_qoriq_hardreset()
94 	struct ata_port *ap = link->ap;  in ahci_qoriq_hardreset()
95 	struct ahci_port_priv *pp = ap->private_data;  in ahci_qoriq_hardreset()
96 	struct ahci_host_priv *hpriv = ap->host->private_data;  in ahci_qoriq_hardreset()
97 	struct ahci_qoriq_priv *qoriq_priv = hpriv->plat_data;  in ahci_qoriq_hardreset()
98 	u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG;  in ahci_qoriq_hardreset()
102 	bool ls1021a_workaround = (qoriq_priv->type == AHCI_LS1021A);  in ahci_qoriq_hardreset()
104 	hpriv->stop_engine(ap);  in ahci_qoriq_hardreset()
108 	 * A-009042: The device detection initialization sequence  in ahci_qoriq_hardreset()
123 	ata_tf_init(link->device, &tf);  in ahci_qoriq_hardreset()
141 	hpriv->start_engine(ap);  in ahci_qoriq_hardreset()
166 	struct ahci_qoriq_priv *qpriv = hpriv->plat_data;  in ahci_qoriq_phy_init()
167 	void __iomem *reg_base = hpriv->mmio;  in ahci_qoriq_phy_init()
169 	switch (qpriv->type) {  in ahci_qoriq_phy_init()
171 		if (!(qpriv->ecc_addr || ecc_initialized))  in ahci_qoriq_phy_init()
172 			return -EINVAL;  in ahci_qoriq_phy_init()
173 		else if (qpriv->ecc_addr && !ecc_initialized)  in ahci_qoriq_phy_init()
174 			writel(SATA_ECC_DISABLE, qpriv->ecc_addr);  in ahci_qoriq_phy_init()
181 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
187 		if (!(qpriv->ecc_addr || ecc_initialized))  in ahci_qoriq_phy_init()
188 			return -EINVAL;  in ahci_qoriq_phy_init()
189 		else if (qpriv->ecc_addr && !ecc_initialized)  in ahci_qoriq_phy_init()
190 			writel(readl(qpriv->ecc_addr) |  in ahci_qoriq_phy_init()
192 			       qpriv->ecc_addr);  in ahci_qoriq_phy_init()
197 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
206 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
211 		if (!(qpriv->ecc_addr || ecc_initialized))  in ahci_qoriq_phy_init()
212 			return -EINVAL;  in ahci_qoriq_phy_init()
213 		else if (qpriv->ecc_addr && !ecc_initialized)  in ahci_qoriq_phy_init()
214 			writel(readl(qpriv->ecc_addr) |  in ahci_qoriq_phy_init()
216 			       qpriv->ecc_addr);  in ahci_qoriq_phy_init()
221 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
228 		if (!(qpriv->ecc_addr || ecc_initialized))  in ahci_qoriq_phy_init()
229 			return -EINVAL;  in ahci_qoriq_phy_init()
230 		else if (qpriv->ecc_addr && !ecc_initialized)  in ahci_qoriq_phy_init()
231 			writel(readl(qpriv->ecc_addr) |  in ahci_qoriq_phy_init()
233 			       qpriv->ecc_addr);  in ahci_qoriq_phy_init()
238 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
247 		if (qpriv->is_dmacoherent)  in ahci_qoriq_phy_init()
258 	struct device_node *np = pdev->dev.of_node;  in ahci_qoriq_probe()
260 	struct device *dev = &pdev->dev;  in ahci_qoriq_probe()
272 	acpi_id = acpi_match_device(ahci_qoriq_acpi_match, &pdev->dev);  in ahci_qoriq_probe()
274 		return -ENODEV;  in ahci_qoriq_probe()
278 		return -ENOMEM;  in ahci_qoriq_probe()
281 		qoriq_priv->type = (unsigned long)of_id->data;  in ahci_qoriq_probe()
283 		qoriq_priv->type = (enum ahci_qoriq_type)acpi_id->driver_data;  in ahci_qoriq_probe()
288 						   "sata-ecc");  in ahci_qoriq_probe()
290 			qoriq_priv->ecc_addr =  in ahci_qoriq_probe()
292 			if (IS_ERR(qoriq_priv->ecc_addr))  in ahci_qoriq_probe()
293 				return PTR_ERR(qoriq_priv->ecc_addr);  in ahci_qoriq_probe()
297 	if (device_get_dma_attr(&pdev->dev) == DEV_DMA_COHERENT)  in ahci_qoriq_probe()
298 		qoriq_priv->is_dmacoherent = true;  in ahci_qoriq_probe()
304 	hpriv->plat_data = qoriq_priv;  in ahci_qoriq_probe()
326 	struct ahci_host_priv *hpriv = host->private_data;  in ahci_qoriq_resume()
370 MODULE_DESCRIPTION("Freescale QorIQ AHCI SATA platform driver");