Re: [PATCH 3/3] atiixp.c: add cable detection support for ATI IDE

[Conke Hu]

On 1/10/07, Andrew Morton <akpm@xxxxxxxx> wrote:
> <snip>
> Here are the three patches.  Conke, can you please tell us whether this is
> all correct and complete?
>
> From: "Conke Hu" <conke.hu@xxxxxxxxx>
>
> A previous patch to atiixp.c was removed but some code has not been
> cleaned. Now we remove these code sine they are no use any longer.
>
> Signed-off-by: Conke Hu <conke.hu@xxxxxxx>
> Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
> Cc: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
> Cc: Greg KH <greg@xxxxxxxxx>
> Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
> ---
>
>  drivers/ide/pci/atiixp.c |   21 +--------------------
>  1 files changed, 1 insertion(+), 20 deletions(-)
>
> diff -puN drivers/ide/pci/atiixp.c~atiixpc-remove-unused-code drivers/ide/pci/atiixp.c
> --- a/drivers/ide/pci/atiixp.c~atiixpc-remove-unused-code
> +++ a/drivers/ide/pci/atiixp.c
> @@ -320,19 +320,6 @@ static void __devinit init_hwif_atiixp(i
>         hwif->drives[0].autodma = hwif->autodma;
>  }
>
> -static void __devinit init_hwif_sb600_legacy(ide_hwif_t *hwif)
> -{
> -
> -       hwif->atapi_dma = 1;
> -       hwif->ultra_mask = 0x7f;
> -       hwif->mwdma_mask = 0x07;
> -       hwif->swdma_mask = 0x07;
> -
> -       if (!noautodma)
> -               hwif->autodma = 1;
> -       hwif->drives[0].autodma = hwif->autodma;
> -       hwif->drives[1].autodma = hwif->autodma;
> -}
>
>  static ide_pci_device_t atiixp_pci_info[] __devinitdata = {
>         {       /* 0 */
> @@ -342,13 +329,7 @@ static ide_pci_device_t atiixp_pci_info[
>                 .autodma        = AUTODMA,
>                 .enablebits     = {{0x48,0x01,0x00}, {0x48,0x08,0x00}},
>                 .bootable       = ON_BOARD,
> -       },{     /* 1 */
> -               .name           = "ATI SB600 SATA Legacy IDE",
> -               .init_hwif      = init_hwif_sb600_legacy,
> -               .channels       = 2,
> -               .autodma        = AUTODMA,
> -               .bootable       = ON_BOARD,
> -       }
> +       },
>  };
>
>  /**
> _
>
>
>
> From: "Conke Hu" <conke.hu@xxxxxxxxx>
>
> AMD/ATI SB600 IDE/PATA controller only has one channel.
>
> Signed-off-by: Conke Hu <conke.hu@xxxxxxx>
> Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
> Cc: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
> Cc: Greg KH <greg@xxxxxxxxx>
> Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
> ---
>
>  drivers/ide/pci/atiixp.c |   11 +++++++++--
>  1 files changed, 9 insertions(+), 2 deletions(-)
>
> diff -puN drivers/ide/pci/atiixp.c~atiixpc-sb600-ide-only-has-one-channel drivers/ide/pci/atiixp.c
> --- a/drivers/ide/pci/atiixp.c~atiixpc-sb600-ide-only-has-one-channel
> +++ a/drivers/ide/pci/atiixp.c
> @@ -329,7 +329,14 @@ static ide_pci_device_t atiixp_pci_info[
>                 .autodma        = AUTODMA,
>                 .enablebits     = {{0x48,0x01,0x00}, {0x48,0x08,0x00}},
>                 .bootable       = ON_BOARD,
> -       },
> +       },{     /* 1 */
> +               .name           = "SB600_PATA",
> +               .init_hwif      = init_hwif_atiixp,
> +               .channels       = 1,
> +               .autodma        = AUTODMA,
> +               .enablebits     = {{0x48,0x01,0x00}, {0x00,0x00,0x00}},
> +               .bootable       = ON_BOARD,
> +       },
>  };
>
>  /**
> @@ -350,7 +357,7 @@ static struct pci_device_id atiixp_pci_t
>         { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP200_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
>         { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP300_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
>         { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
> -       { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
> +       { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
>         { 0, },
>  };
>  MODULE_DEVICE_TABLE(pci, atiixp_pci_tbl);
> _
>
>
> From: "Conke Hu" <conke.hu@xxxxxxxxx>
>
> IDE HDD does not work if it uses a 40-pin PATA cable on ATI chipset.
> This patch fixes the bug.
>
> Signed-off-by: Conke Hu <conke.hu@xxxxxxx>
> Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
> Cc: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
> Cc: Greg KH <greg@xxxxxxxxx>
> Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
> ---
>
>  drivers/ide/pci/atiixp.c |   14 +++++++++++---
>  1 files changed, 11 insertions(+), 3 deletions(-)
>
> diff -puN drivers/ide/pci/atiixp.c~atiixpc-add-cable-detection-support-for-ati-ide drivers/ide/pci/atiixp.c
> --- a/drivers/ide/pci/atiixp.c~atiixpc-add-cable-detection-support-for-ati-ide
> +++ a/drivers/ide/pci/atiixp.c
> @@ -291,8 +291,12 @@ fast_ata_pio:
>
>  static void __devinit init_hwif_atiixp(ide_hwif_t *hwif)
>  {
> +       u8 udma_mode = 0;
> +       u8 ch = hwif->channel;
> +       struct pci_dev *pdev = hwif->pci_dev;
> +
>         if (!hwif->irq)
> -               hwif->irq = hwif->channel ? 15 : 14;
> +               hwif->irq = ch ? 15 : 14;
>
>         hwif->autodma = 0;
>         hwif->tuneproc = &atiixp_tuneproc;
> @@ -308,8 +312,12 @@ static void __devinit init_hwif_atiixp(i
>         hwif->mwdma_mask = 0x06;
>         hwif->swdma_mask = 0x04;
>
> -       /* FIXME: proper cable detection needed */
> -       hwif->udma_four = 1;
> +       pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ch, &udma_mode);
> +       if ((udma_mode & 0x07) >= 0x04 || (udma_mode & 0x70) >= 0x40)
> +               hwif->udma_four = 1;
> +       else
> +               hwif->udma_four = 0;
> +
>         hwif->ide_dma_host_on = &atiixp_ide_dma_host_on;
>         hwif->ide_dma_host_off = &atiixp_ide_dma_host_off;
>         hwif->ide_dma_check = &atiixp_dma_check;
> _

Andrew, the 3 patches are right and complete, Thank you!
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