sata_inic162x: add cardbus support

When attached to cardbus, mmio region is at BAR 1.  Other than that,
everything else is the same.  Add support for it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c
index 55f8e93..8c1f06a 100644 (file)
--- a/drivers/ata/sata_inic162x.c
+++ b/drivers/ata/sata_inic162x.c
@@ -31,7 +31,8 @@
 #define DRV_VERSION    "0.3"
 
 enum {
-       MMIO_BAR                = 5,
+       MMIO_BAR_PCI            = 5,
+       MMIO_BAR_CARDBUS        = 1,
 
        NR_PORTS                = 2,
 
@@ -197,6 +198,7 @@ struct inic_pkt {
 } __packed;
 
 struct inic_host_priv {
+       void __iomem    *mmio_base;
        u16             cached_hctl;
 };
 
@@ -221,7 +223,9 @@ static const int scr_map[] = {
 
 static void __iomem *inic_port_base(struct ata_port *ap)
 {
-       return ap->host->iomap[MMIO_BAR] + ap->port_no * PORT_SIZE;
+       struct inic_host_priv *hpriv = ap->host->private_data;
+
+       return hpriv->mmio_base + ap->port_no * PORT_SIZE;
 }
 
 static void inic_reset_port(void __iomem *port_base)
@@ -378,11 +382,11 @@ static void inic_host_intr(struct ata_port *ap)
 static irqreturn_t inic_interrupt(int irq, void *dev_instance)
 {
        struct ata_host *host = dev_instance;
-       void __iomem *mmio_base = host->iomap[MMIO_BAR];
+       struct inic_host_priv *hpriv = host->private_data;
        u16 host_irq_stat;
        int i, handled = 0;;
 
-       host_irq_stat = readw(mmio_base + HOST_IRQ_STAT);
+       host_irq_stat = readw(hpriv->mmio_base + HOST_IRQ_STAT);
 
        if (unlikely(!(host_irq_stat & HIRQ_GLOBAL)))
                goto out;
@@ -770,7 +774,6 @@ static int inic_pci_device_resume(struct pci_dev *pdev)
 {
        struct ata_host *host = dev_get_drvdata(&pdev->dev);
        struct inic_host_priv *hpriv = host->private_data;
-       void __iomem *mmio_base = host->iomap[MMIO_BAR];
        int rc;
 
        rc = ata_pci_device_do_resume(pdev);
@@ -778,7 +781,7 @@ static int inic_pci_device_resume(struct pci_dev *pdev)
                return rc;
 
        if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
-               rc = init_controller(mmio_base, hpriv->cached_hctl);
+               rc = init_controller(hpriv->mmio_base, hpriv->cached_hctl);
                if (rc)
                        return rc;
        }
@@ -796,6 +799,7 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
        struct ata_host *host;
        struct inic_host_priv *hpriv;
        void __iomem * const *iomap;
+       int mmio_bar;
        int i, rc;
 
        if (!printed_version++)
@@ -809,22 +813,30 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
        host->private_data = hpriv;
 
-       /* acquire resources and fill host */
+       /* Acquire resources and fill host.  Note that PCI and cardbus
+        * use different BARs.
+        */
        rc = pcim_enable_device(pdev);
        if (rc)
                return rc;
 
-       rc = pcim_iomap_regions(pdev, 1 << MMIO_BAR, DRV_NAME);
+       if (pci_resource_flags(pdev, MMIO_BAR_PCI) & IORESOURCE_MEM)
+               mmio_bar = MMIO_BAR_PCI;
+       else
+               mmio_bar = MMIO_BAR_CARDBUS;
+
+       rc = pcim_iomap_regions(pdev, 1 << mmio_bar, DRV_NAME);
        if (rc)
                return rc;
        host->iomap = iomap = pcim_iomap_table(pdev);
-       hpriv->cached_hctl = readw(iomap[MMIO_BAR] + HOST_CTL);
+       hpriv->mmio_base = iomap[mmio_bar];
+       hpriv->cached_hctl = readw(hpriv->mmio_base + HOST_CTL);
 
        for (i = 0; i < NR_PORTS; i++) {
                struct ata_port *ap = host->ports[i];
 
-               ata_port_pbar_desc(ap, MMIO_BAR, -1, "mmio");
-               ata_port_pbar_desc(ap, MMIO_BAR, i * PORT_SIZE, "port");
+               ata_port_pbar_desc(ap, mmio_bar, -1, "mmio");
+               ata_port_pbar_desc(ap, mmio_bar, i * PORT_SIZE, "port");
        }
 
        /* Set dma_mask.  This devices doesn't support 64bit addressing. */
@@ -854,7 +866,7 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                return rc;
        }
 
-       rc = init_controller(iomap[MMIO_BAR], hpriv->cached_hctl);
+       rc = init_controller(hpriv->mmio_base, hpriv->cached_hctl);
        if (rc) {
                dev_printk(KERN_ERR, &pdev->dev,
                           "failed to initialize controller\n");