# Re: \[PATCH 5/5\] Set IDE in ULI1575 to not native mode.

- From: Kumar Gala \<hidden\>
- Date: 2007-05-29 20:51:08 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2007/05/9421001
- Thread: https://ratatoskr.run/linuxppc-dev/2007/05/9420663/t.md

```text

On May 21, 2007, at 10:38 PM, Zhang Wei wrote:

> Set IDE in ULI1575 to not 100% native mode, which forces
> the IDE driver to probe the irq itself.
>
> Signed-off-by: Zhang Wei <redacted>

What causes this to be needed?

- k

> ---
>  arch/powerpc/platforms/86xx/mpc86xx_hpcn.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
> index eb2bc99..2a2dea7 100644
> --- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
> +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
> @@ -314,6 +314,7 @@ static void __devinit quirk_uli5229(struct pci_dev *dev)
>  {
>  	unsigned short temp;
>  	pci_write_config_word(dev, 0x04, 0x0405);
> +	dev->class &= ~0x5;
>  	pci_read_config_word(dev, 0x4a, &temp);
>  	temp |= 0x1000;
>  	pci_write_config_word(dev, 0x4a, temp);
> -- 
> 1.5.1
>
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```