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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-06-15 18:52:53 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-06-15 18:52:53 +0200 |
| commit | c9ef59ff01b6bd1c7360a64fcc8556a1193c2ed0 (patch) | |
| tree | 5bd24f0d0f720ab29f9a5b5a2156a620e2ff2113 /drivers/ide/siimage.c | |
| parent | 6dae44f9a55f13765c877687602cd2bf1a057cfd (diff) | |
| download | linux-c9ef59ff01b6bd1c7360a64fcc8556a1193c2ed0.tar.bz2 | |
ide: IORDY handling fixes
Add ide_pio_need_iordy() helper and convert host drivers to use it.
This fixes it8172, it8213, pdc202xx_old, piix, slc90e66 and siimage
host drivers to handle IORDY correctly.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/siimage.c')
| -rw-r--r-- | drivers/ide/siimage.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/ide/siimage.c b/drivers/ide/siimage.c index bd82d228608c..6a643fdf0e6e 100644 --- a/drivers/ide/siimage.c +++ b/drivers/ide/siimage.c @@ -32,7 +32,6 @@ * smarter code in libata. * * TODO: - * - IORDY fixes * - VDMA support */ @@ -234,8 +233,7 @@ static u8 sil_sata_udma_filter(ide_drive_t *drive) * @pio: PIO mode number * * Load the timing settings for this device mode into the - * controller. If we are in PIO mode 3 or 4 turn on IORDY - * monitoring (bit 9). The TF timing is bits 31:16 + * controller. */ static void sil_set_pio_mode(ide_drive_t *drive, u8 pio) @@ -276,13 +274,16 @@ static void sil_set_pio_mode(ide_drive_t *drive, u8 pio) /* now set up IORDY */ speedp = sil_ioread16(dev, tfaddr - 2); speedp &= ~0x200; - if (pio > 2) - speedp |= 0x200; - sil_iowrite16(dev, speedp, tfaddr - 2); mode = sil_ioread8(dev, base + addr_mask); mode &= ~(unit ? 0x30 : 0x03); - mode |= unit ? 0x10 : 0x01; + + if (ide_pio_need_iordy(drive, pio)) { + speedp |= 0x200; + mode |= unit ? 0x10 : 0x01; + } + + sil_iowrite16(dev, speedp, tfaddr - 2); sil_iowrite8(dev, mode, base + addr_mask); } |