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Date: Wed, 10 Jan 2007 10:34:06 +0800
From: "Conke Hu" <conke.hu@...il.com>
To: "Andrew Morton" <akpm@...l.org>
Cc: "Bartlomiej Zolnierkiewicz" <bzolnier@...il.com>,
"Jeff Garzik" <jeff@...zik.org>,
"Linux kernel mailing list" <linux-kernel@...r.kernel.org>,
"Greg KH" <greg@...ah.com>, linux-ide@...r.kernel.org
Subject: Re: [PATCH 3/3] atiixp.c: add cable detection support for ATI IDE
On 1/10/07, Andrew Morton <akpm@...l.org> 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@...il.com>
>
> 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@....com>
> Cc: Alan Cox <alan@...rguk.ukuu.org.uk>
> Cc: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> Cc: Greg KH <greg@...ah.com>
> Signed-off-by: Andrew Morton <akpm@...l.org>
> ---
>
> 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@...il.com>
>
> AMD/ATI SB600 IDE/PATA controller only has one channel.
>
> Signed-off-by: Conke Hu <conke.hu@....com>
> Cc: Alan Cox <alan@...rguk.ukuu.org.uk>
> Cc: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> Cc: Greg KH <greg@...ah.com>
> Signed-off-by: Andrew Morton <akpm@...l.org>
> ---
>
> 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@...il.com>
>
> 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@....com>
> Cc: Alan Cox <alan@...rguk.ukuu.org.uk>
> Cc: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> Cc: Greg KH <greg@...ah.com>
> Signed-off-by: Andrew Morton <akpm@...l.org>
> ---
>
> 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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