1 // SPDX-License-Identifier: GPL-2.0-or-later
8  *	PIO mode and smarter silicon.
11  *	drive for the right PIO mode and ignore the drive bus mastering DMA
40 	int recovery;  member
52  *	cs5520_set_timings	-	program PIO timings
57  *	Program the PIO mode timings for the controller according to the pio
63 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in cs5520_set_timings()
64 	int slave = adev->devno;  in cs5520_set_timings()
66 	pio -= XFER_PIO_0;  in cs5520_set_timings()
69 	pci_write_config_byte(pdev, 0x62 + ap->port_no,  in cs5520_set_timings()
70 				(cs5520_pio_clocks[pio].recovery << 4) |  in cs5520_set_timings()
74 	pci_write_config_byte(pdev, 0x64 +  4*ap->port_no + slave,  in cs5520_set_timings()
75 				(cs5520_pio_clocks[pio].recovery << 4) |  in cs5520_set_timings()
78 	pci_write_config_byte(pdev, 0x66 +  4*ap->port_no + slave,  in cs5520_set_timings()
79 				(cs5520_pio_clocks[pio].recovery << 4) |  in cs5520_set_timings()
84  *	cs5520_set_piomode	-	program PIO timings
88  *	Program the PIO mode timings for the controller according to the pio
94 	cs5520_set_timings(ap, adev, adev->pio_mode);  in cs5520_set_piomode()
135 		return -ENODEV;  in cs5520_init_one()
144 		dev_warn(&pdev->dev, "DMA mode disabled. Enabling.\n");  in cs5520_init_one()
148 	pi.mwdma_mask = id->driver_data;  in cs5520_init_one()
150 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, 2);  in cs5520_init_one()
152 		return -ENOMEM;  in cs5520_init_one()
154 	if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) {  in cs5520_init_one()
155 		dev_err(&pdev->dev, "unable to configure DMA mask.\n");  in cs5520_init_one()
156 		return -ENODEV;  in cs5520_init_one()
160 	iomap[0] = devm_ioport_map(&pdev->dev, cmd_port[0], 8);  in cs5520_init_one()
161 	iomap[1] = devm_ioport_map(&pdev->dev, ctl_port[0], 1);  in cs5520_init_one()
162 	iomap[2] = devm_ioport_map(&pdev->dev, cmd_port[1], 8);  in cs5520_init_one()
163 	iomap[3] = devm_ioport_map(&pdev->dev, ctl_port[1], 1);  in cs5520_init_one()
167 		return -ENOMEM;  in cs5520_init_one()
169 	ioaddr = &host->ports[0]->ioaddr;  in cs5520_init_one()
170 	ioaddr->cmd_addr = iomap[0];  in cs5520_init_one()
171 	ioaddr->ctl_addr = iomap[1];  in cs5520_init_one()
172 	ioaddr->altstatus_addr = iomap[1];  in cs5520_init_one()
173 	ioaddr->bmdma_addr = iomap[4];  in cs5520_init_one()
176 	ata_port_desc(host->ports[0],  in cs5520_init_one()
178 	ata_port_pbar_desc(host->ports[0], 4, 0, "bmdma");  in cs5520_init_one()
180 	ioaddr = &host->ports[1]->ioaddr;  in cs5520_init_one()
181 	ioaddr->cmd_addr = iomap[2];  in cs5520_init_one()
182 	ioaddr->ctl_addr = iomap[3];  in cs5520_init_one()
183 	ioaddr->altstatus_addr = iomap[3];  in cs5520_init_one()
184 	ioaddr->bmdma_addr = iomap[4] + 8;  in cs5520_init_one()
187 	ata_port_desc(host->ports[1],  in cs5520_init_one()
189 	ata_port_pbar_desc(host->ports[1], 4, 8, "bmdma");  in cs5520_init_one()
199 		struct ata_port *ap = host->ports[i];  in cs5520_init_one()
204 		rc = devm_request_irq(&pdev->dev, irq[ap->port_no],  in cs5520_init_one()
217  *	cs5520_reinit_one	-	device resume
221  *	to restore DMA mode support on BIOSen which disabled it
243  *	cs5520_pci_device_suspend	-	device suspend
288 MODULE_DESCRIPTION("low-level driver for Cyrix CS5510/5520");