fix the IXP4xx CF driver patch for 2.6.30
authorImre Kaloz <kaloz@openwrt.org>
Thu, 8 Oct 2009 10:43:45 +0000 (10:43 +0000)
committerImre Kaloz <kaloz@openwrt.org>
Thu, 8 Oct 2009 10:43:45 +0000 (10:43 +0000)
SVN-Revision: 17996

target/linux/ixp4xx/patches-2.6.30/312-ixp4xx_pata_optimization.patch

index cba1305..3bf1b74 100644 (file)
@@ -1,6 +1,6 @@
 --- a/drivers/ata/pata_ixp4xx_cf.c
 +++ b/drivers/ata/pata_ixp4xx_cf.c
-@@ -24,18 +24,61 @@
+@@ -24,16 +24,58 @@
  #include <scsi/scsi_host.h>
  
  #define DRV_NAME      "pata_ixp4xx_cf"
@@ -9,17 +9,14 @@
  
  static int ixp4xx_set_mode(struct ata_link *link, struct ata_device **error)
  {
+       struct ata_device *dev;
 +      struct ixp4xx_pata_data *data = link->ap->host->dev->platform_data;
 +      unsigned int pio_mask;
-       struct ata_device *dev;
  
--      ata_for_each_dev(dev, link, ENABLED) {
+       ata_for_each_dev(dev, link, ENABLED) {
 -              ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
 -              dev->pio_mode = XFER_PIO_0;
 -              dev->xfer_mode = XFER_PIO_0;
--              dev->xfer_shift = ATA_SHIFT_PIO;
--              dev->flags |= ATA_DFLAG_PIO;
-+      ata_link_for_each_dev(dev, link) {
 +              if (dev->id[ATA_ID_FIELD_VALID] & (1 << 1)) {
 +                      pio_mask = dev->id[ATA_ID_PIO_MODES] & 0x03;
 +                      if (pio_mask & (1 << 1)) {
 +              } else {
 +                      pio_mask = (dev->id[ATA_ID_OLD_PIO_MODES] >> 8);
 +              }
-+              switch (pio_mask) {
-+              case 0:
-+                      ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
-+                      dev->pio_mode = XFER_PIO_0;
-+                      dev->xfer_mode = XFER_PIO_0;
-+                      *data->cs0_cfg = 0x8a473c03;
-+                      break;
-+              case 1:
-+                      ata_dev_printk(dev, KERN_INFO, "configured for PIO1\n");
-+                      dev->pio_mode = XFER_PIO_1;
-+                      dev->xfer_mode = XFER_PIO_1;
-+                      *data->cs0_cfg = 0x86433c03;
-+                      break;
-+              case 2:
-+                      ata_dev_printk(dev, KERN_INFO, "configured for PIO2\n");
-+                      dev->pio_mode = XFER_PIO_2;
-+                      dev->xfer_mode = XFER_PIO_2;
-+                      *data->cs0_cfg = 0x82413c03;
-+                      break;
-+              case 3:
-+                      ata_dev_printk(dev, KERN_INFO, "configured for PIO3\n");
-+                      dev->pio_mode = XFER_PIO_3;
-+                      dev->xfer_mode = XFER_PIO_3;
-+                      *data->cs0_cfg = 0x80823c03;
-+                      break;
-+              case 4:
-+                      ata_dev_printk(dev, KERN_INFO, "configured for PIO4\n");
-+                      dev->pio_mode = XFER_PIO_4;
-+                      dev->xfer_mode = XFER_PIO_4;
-+                      *data->cs0_cfg = 0x80403c03;
-+                      break;
-+              }
-+              if (ata_dev_enabled(dev)) {
-+                      dev->xfer_shift = ATA_SHIFT_PIO;
-+                      dev->flags |= ATA_DFLAG_PIO;
++
++              switch (pio_mask){
++                      case 0:
++                              ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
++                              dev->pio_mode = XFER_PIO_0;
++                              dev->xfer_mode = XFER_PIO_0;
++                              *data->cs0_cfg = 0x8a473c03;
++                              break;
++                      case 1:
++                              ata_dev_printk(dev, KERN_INFO, "configured for PIO1\n");
++                              dev->pio_mode = XFER_PIO_1;
++                              dev->xfer_mode = XFER_PIO_1;
++                              *data->cs0_cfg = 0x86433c03;
++                              break;
++                      case 2:
++                              ata_dev_printk(dev, KERN_INFO, "configured for PIO2\n");
++                              dev->pio_mode = XFER_PIO_2;
++                              dev->xfer_mode = XFER_PIO_2;
++                              *data->cs0_cfg = 0x82413c03;
++                              break;
++                      case 3:
++                              ata_dev_printk(dev, KERN_INFO, "configured for PIO3\n");
++                              dev->pio_mode = XFER_PIO_3;
++                              dev->xfer_mode = XFER_PIO_3;
++                              *data->cs0_cfg = 0x80823c03;
++                              break;
++                      case 4:
++                              ata_dev_printk(dev, KERN_INFO, "configured for PIO4\n");
++                              dev->pio_mode = XFER_PIO_4;
++                              dev->xfer_mode = XFER_PIO_4;
++                              *data->cs0_cfg = 0x80403c03;
++                              break;
 +              }
+               dev->xfer_shift = ATA_SHIFT_PIO;
+               dev->flags |= ATA_DFLAG_PIO;
        }
-       return 0;
- }
-@@ -46,6 +89,7 @@ static unsigned int ixp4xx_mmio_data_xfe
+@@ -46,6 +88,7 @@ static unsigned int ixp4xx_mmio_data_xfe
        unsigned int i;
        unsigned int words = buflen >> 1;
        u16 *buf16 = (u16 *) buf;
@@ -77,7 +71,7 @@
        struct ata_port *ap = dev->link->ap;
        void __iomem *mmio = ap->ioaddr.data_addr;
        struct ixp4xx_pata_data *data = ap->host->dev->platform_data;
-@@ -53,8 +97,34 @@ static unsigned int ixp4xx_mmio_data_xfe
+@@ -53,8 +96,34 @@ static unsigned int ixp4xx_mmio_data_xfe
        /* set the expansion bus in 16bit mode and restore
         * 8 bit mode after the transaction.
         */
  
        /* Transfer multiple of 2 bytes */
        if (rw == READ)
-@@ -79,8 +149,24 @@ static unsigned int ixp4xx_mmio_data_xfe
+@@ -79,8 +148,24 @@ static unsigned int ixp4xx_mmio_data_xfe
                words++;
        }