siimage: fix ->set_pio_mode method to select PIO data transfer
Bartlomiej Zolnierkiewicz [Thu, 11 Oct 2007 21:54:01 +0000 (23:54 +0200)]
* Remember to select PIO data transfer (with IORDY monitored) in sil_tune_pio()
  (->set_pio_mode method) so the controller is always programmed correctly for
  PIO transfers (this is important if DMA is not going to be used).

* Don't set DMA/UDMA timings for PIO modes in siimage_tune_chipset().

* Bump driver version.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/pci/siimage.c

index e07c991..c526c70 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * linux/drivers/ide/pci/siimage.c             Version 1.15    Jun 29 2007
+ * linux/drivers/ide/pci/siimage.c             Version 1.16    Jul 13 2007
  *
  * Copyright (C) 2001-2002     Andre Hedrick <andre@linux-ide.org>
  * Copyright (C) 2003          Red Hat <alan@redhat.com>
@@ -185,7 +185,12 @@ static void sil_tune_pio(ide_drive_t *drive, u8 pio)
        u16 speedp              = 0;
        unsigned long addr      = siimage_seldev(drive, 0x04);
        unsigned long tfaddr    = siimage_selreg(hwif, 0x02);
+       unsigned long base      = (unsigned long)hwif->hwif_data;
        u8 tf_pio               = pio;
+       u8 addr_mask            = hwif->channel ? (hwif->mmio ? 0xF4 : 0x84)
+                                               : (hwif->mmio ? 0xB4 : 0x80);
+       u8 mode                 = 0;
+       u8 unit                 = drive->select.b.unit;
 
        /* trim *taskfile* PIO to the slowest of the master/slave */
        if (pair->present) {
@@ -207,6 +212,11 @@ static void sil_tune_pio(ide_drive_t *drive, u8 pio)
                        hwif->OUTW(hwif->INW(tfaddr-2)|0x200, tfaddr-2);
                else
                        hwif->OUTW(hwif->INW(tfaddr-2)&~0x200, tfaddr-2);
+
+               mode = hwif->INB(base + addr_mask);
+               mode &= ~(unit ? 0x30 : 0x03);
+               mode |= (unit ? 0x10 : 0x01);
+               hwif->OUTB(mode, base + addr_mask);
        } else {
                pci_write_config_word(hwif->pci_dev, addr, speedp);
                pci_write_config_word(hwif->pci_dev, tfaddr, speedt);
@@ -216,6 +226,11 @@ static void sil_tune_pio(ide_drive_t *drive, u8 pio)
                if (pio > 2)
                        speedp |= 0x200;
                pci_write_config_word(hwif->pci_dev, tfaddr-2, speedp);
+
+               pci_read_config_byte(hwif->pci_dev, addr_mask, &mode);
+               mode &= ~(unit ? 0x30 : 0x03);
+               mode |= (unit ? 0x10 : 0x01);
+               pci_write_config_byte(hwif->pci_dev, addr_mask, mode);
        }
 }
 
@@ -275,8 +290,7 @@ static int siimage_tune_chipset(ide_drive_t *drive, const u8 speed)
                case XFER_PIO_1:
                case XFER_PIO_0:
                        sil_tune_pio(drive, speed - XFER_PIO_0);
-                       mode |= ((unit) ? 0x10 : 0x01);
-                       break;
+                       return ide_config_drive_speed(drive, speed);
                case XFER_MW_DMA_2:
                case XFER_MW_DMA_1:
                case XFER_MW_DMA_0: