[PATCH] 86xx: Enable the AC97 interface on 8641D board.

[Kumar Gala]

On May 2, 2007, at 4:53 PM, Jon Loeliger wrote:

> From: Jason Jin <jason.jin at freescale.com>
>
> HD interface and AC97 interface share some pins and they are  
> enabled at
> the same time, In order to use AC97 interface, we need to disable  
> the HD
> interface first.
>
> Signed-off-by:Jason Jin<jason.jin at freescale.com>
> Acked-by: Jon Loeliger <jdl at freescale.com>
> ---
>  arch/powerpc/platforms/86xx/mpc86xx_hpcn.c |    7 ++++++-
>  1 files changed, 6 insertions(+), 1 deletions(-)

Is the HD feature not used at all?  Is there a AC97 Driver CONFIG_  
that makes sense to wrap that with?  Just wondering about the mutual  
exclusion (and how to provide flexibility to the user).

- k

>
> diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/ 
> powerpc/platforms/86xx/mpc86xx_hpcn.c
> index 3d3d98f..13a14dd 100644
> --- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
> +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
> @@ -168,7 +168,7 @@ static void __devinit quirk_uli1575(struct  
> pci_dev *dev)
>  {
>  	unsigned short temp;
>  	struct pci_controller *hose = pci_bus_to_host(dev->bus);
> -	unsigned char irq2pin[16];
> +	unsigned char irq2pin[16], c;
>  	unsigned long pirq_map_word = 0;
>  	u32 irq;
>  	int i;
> @@ -288,6 +288,11 @@ static void __devinit quirk_uli1575(struct  
> pci_dev *dev)
>  	outb(0x1e, 0x4d1);
>
>  #undef ULI1575_SET_DEV_IRQ
> +
> +	/* Disable the HD interface and enable the AC97 interface. */
> +	pci_read_config_byte(dev, 0xb8, &c);
> +	c &= 0x7f;
> +	pci_write_config_byte(dev, 0xb8, c);
>  }
>
>  static void __devinit quirk_uli5288(struct pci_dev *dev)
> -- 
> 1.5.0.3
>
>
>
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