1 // SPDX-License-Identifier: GPL-2.0
4  * Buddha, Catweasel and X-Surf PATA controller driver
68 	struct ata_device *dev = qc->dev;  in pata_buddha_data_xfer()
69 	struct ata_port *ap = dev->link->ap;  in pata_buddha_data_xfer()
70 	void __iomem *data_addr = ap->ioaddr.data_addr;  in pata_buddha_data_xfer()
84 		buf += buflen - 1;  in pata_buddha_data_xfer()
110 		dev->pio_mode = dev->xfer_mode = XFER_PIO_0;  in pata_buddha_set_mode()
111 		dev->xfer_shift = ATA_SHIFT_PIO;  in pata_buddha_set_mode()
112 		dev->flags |= ATA_DFLAG_PIO;  in pata_buddha_set_mode()
122 	ch = z_readb((unsigned long)ap->private_data);  in pata_buddha_irq_check()
129 	z_writeb(0, (unsigned long)ap->private_data);  in pata_xsurf_irq_clear()
149 static int pata_buddha_probe(struct zorro_dev *z,  in pata_buddha_probe()  argument
153 		"Buddha", "Catweasel", "X-Surf"  in pata_buddha_probe()
158 	unsigned int type = ent->driver_data;  in pata_buddha_probe()
163 	dev_info(&z->dev, "%s IDE controller\n", board_name[type]);  in pata_buddha_probe()
165 	board = z->resource.start;  in pata_buddha_probe()
168 		if (!devm_request_mem_region(&z->dev,  in pata_buddha_probe()
171 			return -ENXIO;  in pata_buddha_probe()
173 		if (!devm_request_mem_region(&z->dev,  in pata_buddha_probe()
176 			return -ENXIO;  in pata_buddha_probe()
177 		if (!devm_request_mem_region(&z->dev,  in pata_buddha_probe()
183 	/* Workaround for X-Surf: Save drvdata in case zorro8390 has set it */  in pata_buddha_probe()
185 		old_drvdata = dev_get_drvdata(&z->dev);  in pata_buddha_probe()
188 	host = ata_host_alloc(&z->dev, nr_ports);  in pata_buddha_probe()
190 		dev_set_drvdata(&z->dev, old_drvdata);  in pata_buddha_probe()
192 		return -ENXIO;  in pata_buddha_probe()
201 		struct ata_port *ap = host->ports[i];  in pata_buddha_probe()
206 			ap->ops = &pata_buddha_ops;  in pata_buddha_probe()
211 			ap->ops = &pata_xsurf_ops;  in pata_buddha_probe()
213 			/* X-Surf has no CS1* (Control/AltStat) */  in pata_buddha_probe()
217 		ap->pio_mask = ATA_PIO4;  in pata_buddha_probe()
218 		ap->flags |= ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_IORDY;  in pata_buddha_probe()
220 		ap->ioaddr.data_addr		= base;  in pata_buddha_probe()
221 		ap->ioaddr.error_addr		= base + 2 + 1 * 4;  in pata_buddha_probe()
222 		ap->ioaddr.feature_addr		= base + 2 + 1 * 4;  in pata_buddha_probe()
223 		ap->ioaddr.nsect_addr		= base + 2 + 2 * 4;  in pata_buddha_probe()
224 		ap->ioaddr.lbal_addr		= base + 2 + 3 * 4;  in pata_buddha_probe()
225 		ap->ioaddr.lbam_addr		= base + 2 + 4 * 4;  in pata_buddha_probe()
226 		ap->ioaddr.lbah_addr		= base + 2 + 5 * 4;  in pata_buddha_probe()
227 		ap->ioaddr.device_addr		= base + 2 + 6 * 4;  in pata_buddha_probe()
228 		ap->ioaddr.status_addr		= base + 2 + 7 * 4;  in pata_buddha_probe()
229 		ap->ioaddr.command_addr		= base + 2 + 7 * 4;  in pata_buddha_probe()
232 			ap->ioaddr.altstatus_addr = base + ctl;  in pata_buddha_probe()
233 			ap->ioaddr.ctl_addr	  = base + ctl;  in pata_buddha_probe()
236 		ap->private_data = (void *)irqport;  in pata_buddha_probe()
238 		ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", board,  in pata_buddha_probe()
248 static void pata_buddha_remove(struct zorro_dev *z)  in pata_buddha_remove()  argument
250 	struct ata_host *host = dev_get_drvdata(&z->dev);  in pata_buddha_remove()
270  * We cannot have a modalias for X-Surf boards, as it competes with the
277 	struct zorro_dev *z = NULL;  in pata_buddha_late_init()  local
279 	/* Auto-bind to regular boards */  in pata_buddha_late_init()
282 	/* Manually bind to all X-Surf boards */  in pata_buddha_late_init()
283 	while ((z = zorro_find_device(ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF, z))) {  in pata_buddha_late_init()
288 		pata_buddha_probe(z, &xsurf_ent);  in pata_buddha_late_init()
296 MODULE_DESCRIPTION("low-level driver for Buddha/Catweasel/X-Surf PATA");