1 files changed, 10 insertions, 5 deletions

diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c
index f8b3ffc8ae9..c2e6fb9f2ef 100644
--- a/drivers/ata/pata_rb532_cf.c
+++ b/drivers/ata/pata_rb532_cf.c
@@ -39,9 +39,11 @@
 #define RB500_CF_MAXPORTS       1
 #define RB500_CF_IO_DELAY       400
 
-#define RB500_CF_REG_CMD        0x0800
+#define RB500_CF_REG_BASE       0x0800
+#define RB500_CF_REG_ERR        0x080D
 #define RB500_CF_REG_CTRL       0x080E
-#define RB500_CF_REG_DATA       0x0C00
+/* 32bit buffered data register offset */
+#define RB500_CF_REG_DBUF32     0x0C00
 
 struct rb532_cf_info {
         void __iomem    *iobase;
@@ -72,11 +74,12 @@ static void rb532_pata_exec_command(struct ata_port *ap,
         rb532_pata_finish_io(ap);
 }
 
-static void rb532_pata_data_xfer(struct ata_device *adev, unsigned char *buf,
+static unsigned int rb532_pata_data_xfer(struct ata_device *adev, unsigned char *buf,
                                 unsigned int buflen, int write_data)
 {
         struct ata_port *ap = adev->link->ap;
         void __iomem *ioaddr = ap->ioaddr.data_addr;
+        int retlen = buflen;
 
         if (write_data) {
                 for (; buflen > 0; buflen--, buf++)
@@ -87,6 +90,7 @@ static void rb532_pata_data_xfer(struct ata_device *adev, unsigned char *buf,
         }
 
         rb532_pata_finish_io(adev->link->ap);
+        return retlen;
 }
 
 static void rb532_pata_freeze(struct ata_port *ap)
@@ -146,13 +150,14 @@ static void rb532_pata_setup_ports(struct ata_host *ah)
         ap->pio_mask    = 0x1f; /* PIO4 */
         ap->flags       = ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO;
 
-        ap->ioaddr.cmd_addr     = info->iobase + RB500_CF_REG_CMD;
+        ap->ioaddr.cmd_addr     = info->iobase + RB500_CF_REG_BASE;
         ap->ioaddr.ctl_addr     = info->iobase + RB500_CF_REG_CTRL;
         ap->ioaddr.altstatus_addr = info->iobase + RB500_CF_REG_CTRL;
 
         ata_sff_std_ports(&ap->ioaddr);
 
-        ap->ioaddr.data_addr    = info->iobase + RB500_CF_REG_DATA;
+        ap->ioaddr.data_addr    = info->iobase + RB500_CF_REG_DBUF32;
+        ap->ioaddr.error_addr   = info->iobase + RB500_CF_REG_ERR;
 }
 
 static __devinit int rb532_pata_driver_probe(struct platform_device *pdev)