1 // SPDX-License-Identifier: GPL-2.0-only
73 #define DRV_NAME	"ahci-ceva"
78 MODULE_PARM_DESC(rx_watermark, "RxWaterMark value (0 - 0x80)");
124 	void __iomem *mmio = hpriv->mmio;  in ahci_ceva_setup()
125 	struct ceva_ahci_priv *cevapriv = hpriv->plat_data;  in ahci_ceva_setup()
142 		 * Set Mem Addr Read ID, Write ID for non-data transfers  in ahci_ceva_setup()
150 		if (cevapriv->is_cci_enabled) {  in ahci_ceva_setup()
164 		writel(cevapriv->pp2c[i], mmio + AHCI_VEND_PP2C);  in ahci_ceva_setup()
167 		writel(cevapriv->pp3c[i], mmio + AHCI_VEND_PP3C);  in ahci_ceva_setup()
169 		/* Phy Control Burst timing setting */  in ahci_ceva_setup()
170 		writel(cevapriv->pp4c[i], mmio + AHCI_VEND_PP4C);  in ahci_ceva_setup()
173 		writel(cevapriv->pp5c[i], mmio + AHCI_VEND_PP5C);  in ahci_ceva_setup()
181 		if (cevapriv->flags & CEVA_FLAG_BROKEN_GEN2)  in ahci_ceva_setup()
208 	for (i = 0; i < hpriv->nports; i++) {  in ceva_ahci_platform_enable_resources()
209 		rc = phy_init(hpriv->phys[i]);  in ceva_ahci_platform_enable_resources()
214 	/* De-assert the controller reset */  in ceva_ahci_platform_enable_resources()
217 	for (i = 0; i < hpriv->nports; i++) {  in ceva_ahci_platform_enable_resources()
218 		rc = phy_power_on(hpriv->phys[i]);  in ceva_ahci_platform_enable_resources()
220 			phy_exit(hpriv->phys[i]);  in ceva_ahci_platform_enable_resources()
231 	while (--i >= 0) {  in ceva_ahci_platform_enable_resources()
232 		phy_power_off(hpriv->phys[i]);  in ceva_ahci_platform_enable_resources()
233 		phy_exit(hpriv->phys[i]);  in ceva_ahci_platform_enable_resources()
247 	struct device_node *np = pdev->dev.of_node;  in ceva_ahci_probe()
248 	struct device *dev = &pdev->dev;  in ceva_ahci_probe()
256 		return -ENOMEM;  in ceva_ahci_probe()
258 	cevapriv->ahci_pdev = pdev;  in ceva_ahci_probe()
263 	hpriv->rsts = devm_reset_control_get_optional_exclusive(&pdev->dev,  in ceva_ahci_probe()
265 	if (IS_ERR(hpriv->rsts))  in ceva_ahci_probe()
266 		return dev_err_probe(&pdev->dev, PTR_ERR(hpriv->rsts),  in ceva_ahci_probe()
273 	if (of_property_read_bool(np, "ceva,broken-gen2"))  in ceva_ahci_probe()
274 		cevapriv->flags = CEVA_FLAG_BROKEN_GEN2;  in ceva_ahci_probe()
276 	/* Read OOB timing value for COMINIT from device-tree */  in ceva_ahci_probe()
277 	if (of_property_read_u8_array(np, "ceva,p0-cominit-params",  in ceva_ahci_probe()
278 					(u8 *)&cevapriv->pp2c[0], 4) < 0) {  in ceva_ahci_probe()
279 		dev_warn(dev, "ceva,p0-cominit-params property not defined\n");  in ceva_ahci_probe()
280 		rc = -EINVAL;  in ceva_ahci_probe()
284 	if (of_property_read_u8_array(np, "ceva,p1-cominit-params",  in ceva_ahci_probe()
285 					(u8 *)&cevapriv->pp2c[1], 4) < 0) {  in ceva_ahci_probe()
286 		dev_warn(dev, "ceva,p1-cominit-params property not defined\n");  in ceva_ahci_probe()
287 		rc = -EINVAL;  in ceva_ahci_probe()
291 	/* Read OOB timing value for COMWAKE from device-tree*/  in ceva_ahci_probe()
292 	if (of_property_read_u8_array(np, "ceva,p0-comwake-params",  in ceva_ahci_probe()
293 					(u8 *)&cevapriv->pp3c[0], 4) < 0) {  in ceva_ahci_probe()
294 		dev_warn(dev, "ceva,p0-comwake-params property not defined\n");  in ceva_ahci_probe()
295 		rc = -EINVAL;  in ceva_ahci_probe()
299 	if (of_property_read_u8_array(np, "ceva,p1-comwake-params",  in ceva_ahci_probe()
300 					(u8 *)&cevapriv->pp3c[1], 4) < 0) {  in ceva_ahci_probe()
301 		dev_warn(dev, "ceva,p1-comwake-params property not defined\n");  in ceva_ahci_probe()
302 		rc = -EINVAL;  in ceva_ahci_probe()
306 	/* Read phy BURST timing value from device-tree */  in ceva_ahci_probe()
307 	if (of_property_read_u8_array(np, "ceva,p0-burst-params",  in ceva_ahci_probe()
308 					(u8 *)&cevapriv->pp4c[0], 4) < 0) {  in ceva_ahci_probe()
309 		dev_warn(dev, "ceva,p0-burst-params property not defined\n");  in ceva_ahci_probe()
310 		rc = -EINVAL;  in ceva_ahci_probe()
314 	if (of_property_read_u8_array(np, "ceva,p1-burst-params",  in ceva_ahci_probe()
315 					(u8 *)&cevapriv->pp4c[1], 4) < 0) {  in ceva_ahci_probe()
316 		dev_warn(dev, "ceva,p1-burst-params property not defined\n");  in ceva_ahci_probe()
317 		rc = -EINVAL;  in ceva_ahci_probe()
321 	/* Read phy RETRY interval timing value from device-tree */  in ceva_ahci_probe()
322 	if (of_property_read_u16_array(np, "ceva,p0-retry-params",  in ceva_ahci_probe()
323 					(u16 *)&cevapriv->pp5c[0], 2) < 0) {  in ceva_ahci_probe()
324 		dev_warn(dev, "ceva,p0-retry-params property not defined\n");  in ceva_ahci_probe()
325 		rc = -EINVAL;  in ceva_ahci_probe()
329 	if (of_property_read_u16_array(np, "ceva,p1-retry-params",  in ceva_ahci_probe()
330 					(u16 *)&cevapriv->pp5c[1], 2) < 0) {  in ceva_ahci_probe()
331 		dev_warn(dev, "ceva,p1-retry-params property not defined\n");  in ceva_ahci_probe()
332 		rc = -EINVAL;  in ceva_ahci_probe()
341 	cevapriv->is_cci_enabled = (attr == DEV_DMA_COHERENT);  in ceva_ahci_probe()
343 	hpriv->plat_data = cevapriv;  in ceva_ahci_probe()
368 	struct ahci_host_priv *hpriv = host->private_data;  in ceva_ahci_resume()
398 	{ .compatible = "ceva,ahci-1v84" },