libata: convert to iomap

Convert libata core layer and LLDs to use iomap.

* managed iomap is used.  Pointer to pcim_iomap_table() is cached at
  host->iomap and used through out LLDs.  This basically replaces
  host->mmio_base.

* if possible, pcim_iomap_regions() is used

Most iomap operation conversions are taken from Jeff Garzik
<jgarzik@pobox.com>'s iomap branch.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 18 insertions, 11 deletions

diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c
index 29d459be19be..b9fd5388b476 100644
--- a/drivers/ata/pata_cs5530.c
+++ b/drivers/ata/pata_cs5530.c
@@ -37,6 +37,13 @@
 #define DRV_NAME        "pata_cs5530"
 #define DRV_VERSION     "0.7.1"
 
+static void __iomem *cs5530_port_base(struct ata_port *ap)
+{
+        unsigned long bmdma = (unsigned long)ap->ioaddr.bmdma_addr;
+
+        return (void __iomem *)((bmdma & ~0x0F) + 0x20 + 0x10 * ap->port_no);
+}
+
 /**
  *      cs5530_set_piomode              -       PIO setup
  *      @ap: ATA interface
@@ -52,19 +59,19 @@ static void cs5530_set_piomode(struct ata_port *ap, struct ata_device *adev)
                 {0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010},
                 {0xd1329172, 0x71212171, 0x30200080, 0x20102010, 0x00100010}
         };
-        unsigned long base = ( ap->ioaddr.bmdma_addr & ~0x0F) + 0x20 + 0x10 * ap->port_no;
+        void __iomem *base = cs5530_port_base(ap);
         u32 tuning;
         int format;
 
         /* Find out which table to use */
-        tuning = inl(base + 0x04);
+        tuning = ioread32(base + 0x04);
         format = (tuning & 0x80000000UL) ? 1 : 0;
 
         /* Now load the right timing register */
         if (adev->devno)
                 base += 0x08;
 
-        outl(cs5530_pio_timings[format][adev->pio_mode - XFER_PIO_0], base);
+        iowrite32(cs5530_pio_timings[format][adev->pio_mode - XFER_PIO_0], base);
 }
 
 /**
@@ -79,12 +86,12 @@ static void cs5530_set_piomode(struct ata_port *ap, struct ata_device *adev)
 
 static void cs5530_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 {
-        unsigned long base = ( ap->ioaddr.bmdma_addr & ~0x0F) + 0x20 + 0x10 * ap->port_no;
+        void __iomem *base = cs5530_port_base(ap);
         u32 tuning, timing = 0;
         u8 reg;
 
         /* Find out which table to use */
-        tuning = inl(base + 0x04);
+        tuning = ioread32(base + 0x04);
 
         switch(adev->dma_mode) {
                 case XFER_UDMA_0:
@@ -105,20 +112,20 @@ static void cs5530_set_dmamode(struct ata_port *ap, struct ata_device *adev)
         /* Merge in the PIO format bit */
         timing |= (tuning & 0x80000000UL);
         if (adev->devno == 0) /* Master */
-                outl(timing, base + 0x04);
+                iowrite32(timing, base + 0x04);
         else {
                 if (timing & 0x00100000)
                         tuning |= 0x00100000;   /* UDMA for both */
                 else
                         tuning &= ~0x00100000;  /* MWDMA for both */
-                outl(tuning, base + 0x04);
-                outl(timing, base + 0x0C);
+                iowrite32(tuning, base + 0x04);
+                iowrite32(timing, base + 0x0C);
         }
 
         /* Set the DMA capable bit in the BMDMA area */
-        reg = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
+        reg = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
         reg |= (1 << (5 + adev->devno));
-        outb(reg, ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
+        iowrite8(reg, ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
 
         /* Remember the last DMA setup we did */
 
@@ -210,7 +217,7 @@ static struct ata_port_operations cs5530_port_ops = {
         .qc_prep        = ata_qc_prep,
         .qc_issue       = cs5530_qc_issue_prot,
 
-        .data_xfer      = ata_pio_data_xfer,
+        .data_xfer      = ata_data_xfer,
 
         .irq_handler    = ata_interrupt,
         .irq_clear      = ata_bmdma_irq_clear,