diff options
| -rw-r--r-- | drivers/ata/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/ata/ahci.c | 17 | ||||
| -rw-r--r-- | drivers/ata/pata_marvell.c | 51 |
3 files changed, 59 insertions, 15 deletions
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index ae8494944c4..11c8c19f0fb 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -448,8 +448,10 @@ config PATA_MARVELL tristate "Marvell PATA support via legacy mode" depends on PCI help - This option enables limited support for the Marvell 88SE6145 ATA - controller. + This option enables limited support for the Marvell 88SE61xx ATA + controllers. If you wish to use only the SATA ports then select + the AHCI driver alone. If you wish to the use the PATA port or + both SATA and PATA include this driver. If unsure, say N. diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index c729e6988bb..bce26ee3806 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -610,6 +610,15 @@ module_param(ahci_em_messages, int, 0444); MODULE_PARM_DESC(ahci_em_messages, "Set AHCI Enclosure Management Message type (0 = disabled, 1 = LED"); +#if defined(CONFIG_PATA_MARVELL) || defined(CONFIG_PATA_MARVELL_MODULE) +static int marvell_enable; +#else +static int marvell_enable = 1; +#endif +module_param(marvell_enable, int, 0644); +MODULE_PARM_DESC(marvell_enable, "Marvell SATA via AHCI (1 = enabled)"); + + static inline int ahci_nr_ports(u32 cap) { return (cap & 0x1f) + 1; @@ -732,6 +741,8 @@ static void ahci_save_initial_config(struct pci_dev *pdev, "MV_AHCI HACK: port_map %x -> %x\n", port_map, port_map & mv); + dev_printk(KERN_ERR, &pdev->dev, + "Disabling your PATA port. Use the boot option 'ahci.marvell_enable=0' to avoid this.\n"); port_map &= mv; } @@ -2533,6 +2544,12 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (!printed_version++) dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); + /* The AHCI driver can only drive the SATA ports, the PATA driver + can drive them all so if both drivers are selected make sure + AHCI stays out of the way */ + if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable) + return -ENODEV; + /* acquire resources */ rc = pcim_enable_device(pdev); if (rc) diff --git a/drivers/ata/pata_marvell.c b/drivers/ata/pata_marvell.c index 24a011b2502..0d87eec8496 100644 --- a/drivers/ata/pata_marvell.c +++ b/drivers/ata/pata_marvell.c @@ -20,29 +20,30 @@ #include <linux/ata.h> #define DRV_NAME "pata_marvell" -#define DRV_VERSION "0.1.4" +#define DRV_VERSION "0.1.6" /** - * marvell_pre_reset - check for 40/80 pin - * @link: link - * @deadline: deadline jiffies for the operation + * marvell_pata_active - check if PATA is active + * @pdev: PCI device * - * Perform the PATA port setup we need. + * Returns 1 if the PATA port may be active. We know how to check this + * for the 6145 but not the other devices */ -static int marvell_pre_reset(struct ata_link *link, unsigned long deadline) +static int marvell_pata_active(struct pci_dev *pdev) { - struct ata_port *ap = link->ap; - struct pci_dev *pdev = to_pci_dev(ap->host->dev); + int i; u32 devices; void __iomem *barp; - int i; - /* Check if our port is enabled */ + /* We don't yet know how to do this for other devices */ + if (pdev->device != 0x6145) + return 1; barp = pci_iomap(pdev, 5, 0x10); if (barp == NULL) return -ENOMEM; + printk("BAR5:"); for(i = 0; i <= 0x0F; i++) printk("%02X:%02X ", i, ioread8(barp + i)); @@ -51,9 +52,27 @@ static int marvell_pre_reset(struct ata_link *link, unsigned long deadline) devices = ioread32(barp + 0x0C); pci_iounmap(pdev, barp); - if ((pdev->device == 0x6145) && (ap->port_no == 0) && - (!(devices & 0x10))) /* PATA enable ? */ - return -ENOENT; + if (devices & 0x10) + return 1; + return 0; +} + +/** + * marvell_pre_reset - check for 40/80 pin + * @link: link + * @deadline: deadline jiffies for the operation + * + * Perform the PATA port setup we need. + */ + +static int marvell_pre_reset(struct ata_link *link, unsigned long deadline) +{ + struct ata_port *ap = link->ap; + struct pci_dev *pdev = to_pci_dev(ap->host->dev); + + if (pdev->device == 0x6145 && ap->port_no == 0 && + !marvell_pata_active(pdev)) /* PATA enable ? */ + return -ENOENT; return ata_sff_prereset(link, deadline); } @@ -128,6 +147,12 @@ static int marvell_init_one (struct pci_dev *pdev, const struct pci_device_id *i if (pdev->device == 0x6101) ppi[1] = &ata_dummy_port_info; +#if defined(CONFIG_AHCI) || defined(CONFIG_AHCI_MODULE) + if (!marvell_pata_active(pdev)) { + printk(KERN_INFO DRV_NAME ": PATA port not active, deferring to AHCI driver.\n"); + return -ENODEV; + } +#endif return ata_pci_sff_init_one(pdev, ppi, &marvell_sht, NULL); } |