4 * For the moment we drive the PATA port in legacy mode. That
5 * isn't making full use of the device functionality but it is
8 * (c) 2006 Red Hat <alan@redhat.com>
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include <linux/pci.h>
14 #include <linux/init.h>
15 #include <linux/blkdev.h>
16 #include <linux/delay.h>
17 #include <linux/device.h>
18 #include <scsi/scsi_host.h>
19 #include <linux/libata.h>
20 #include <linux/ata.h>
22 #define DRV_NAME "pata_marvell"
23 #define DRV_VERSION "0.1.4"
26 * marvell_pre_reset - check for 40/80 pin
28 * @deadline: deadline jiffies for the operation
30 * Perform the PATA port setup we need.
33 static int marvell_pre_reset(struct ata_link *link, unsigned long deadline)
35 struct ata_port *ap = link->ap;
36 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
41 /* Check if our port is enabled */
43 barp = pci_iomap(pdev, 5, 0x10);
47 for(i = 0; i <= 0x0F; i++)
48 printk("%02X:%02X ", i, ioread8(barp + i));
51 devices = ioread32(barp + 0x0C);
52 pci_iounmap(pdev, barp);
54 if ((pdev->device == 0x6145) && (ap->port_no == 0) &&
55 (!(devices & 0x10))) /* PATA enable ? */
58 return ata_sff_prereset(link, deadline);
61 static int marvell_cable_detect(struct ata_port *ap)
67 if (ioread8(ap->ioaddr.bmdma_addr + 1) & 1)
68 return ATA_CBL_PATA40;
69 return ATA_CBL_PATA80;
70 case 1: /* Legacy SATA port */
75 return 0; /* Our BUG macro needs the right markup */
78 /* No PIO or DMA methods needed for this device */
80 static struct scsi_host_template marvell_sht = {
81 ATA_BMDMA_SHT(DRV_NAME),
84 static struct ata_port_operations marvell_ops = {
85 .inherits = &ata_bmdma_port_ops,
86 .cable_detect = marvell_cable_detect,
87 .prereset = marvell_pre_reset,
92 * marvell_init_one - Register Marvell ATA PCI device with kernel services
93 * @pdev: PCI device to register
94 * @ent: Entry in marvell_pci_tbl matching with @pdev
96 * Called from kernel PCI layer.
99 * Inherited from PCI layer (may sleep).
102 * Zero on success, or -ERRNO value.
105 static int marvell_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
107 static const struct ata_port_info info = {
108 .flags = ATA_FLAG_SLAVE_POSS,
112 .udma_mask = ATA_UDMA5,
114 .port_ops = &marvell_ops,
116 static const struct ata_port_info info_sata = {
117 /* Slave possible as its magically mapped not real */
118 .flags = ATA_FLAG_SLAVE_POSS,
122 .udma_mask = ATA_UDMA6,
124 .port_ops = &marvell_ops,
126 const struct ata_port_info *ppi[] = { &info, &info_sata };
128 if (pdev->device == 0x6101)
129 ppi[1] = &ata_dummy_port_info;
131 return ata_pci_sff_init_one(pdev, ppi, &marvell_sht, NULL);
134 static const struct pci_device_id marvell_pci_tbl[] = {
135 { PCI_DEVICE(0x11AB, 0x6101), },
136 { PCI_DEVICE(0x11AB, 0x6121), },
137 { PCI_DEVICE(0x11AB, 0x6123), },
138 { PCI_DEVICE(0x11AB, 0x6145), },
139 { } /* terminate list */
142 static struct pci_driver marvell_pci_driver = {
144 .id_table = marvell_pci_tbl,
145 .probe = marvell_init_one,
146 .remove = ata_pci_remove_one,
148 .suspend = ata_pci_device_suspend,
149 .resume = ata_pci_device_resume,
153 static int __init marvell_init(void)
155 return pci_register_driver(&marvell_pci_driver);
158 static void __exit marvell_exit(void)
160 pci_unregister_driver(&marvell_pci_driver);
163 module_init(marvell_init);
164 module_exit(marvell_exit);
166 MODULE_AUTHOR("Alan Cox");
167 MODULE_DESCRIPTION("SCSI low-level driver for Marvell ATA in legacy mode");
168 MODULE_LICENSE("GPL");
169 MODULE_DEVICE_TABLE(pci, marvell_pci_tbl);
170 MODULE_VERSION(DRV_VERSION);