Subject: Re: [PATCH v2] powerpc/usb: fix issue of CPU halt when missing USB PHY clock

From: Sergei Shtylyov <[email-masked]>
Date: Thu, 02 Feb 2012 15:39:48 +0400

Hello.

On 02-02-2012 7:23, Shengzhou Liu wrote:

> when missing USB PHY clock, kernel booting up will halt during USB
> initialization. We should check USBGP[PHY_CLK_VALID] bit to avoid
> CPU hang in this case.

> Signed-off-by: Shengzhou Liu<[email-masked]>
[...]

> diff --git a/drivers/usb/host/ehci-fsl.h b/drivers/usb/host/ehci-fsl.h
> index 4918062..dd3dc47 100644
> --- a/drivers/usb/host/ehci-fsl.h
> +++ b/drivers/usb/host/ehci-fsl.h
> @@ -45,5 +45,6 @@
>   #define FSL_SOC_USB_PRICTRL	0x40c	/* NOTE: big-endian */
>   #define FSL_SOC_USB_SICTRL	0x410	/* NOTE: big-endian */
>   #define FSL_SOC_USB_CTRL	0x500	/* NOTE: big-endian */
> +#define CTRL_PHY_CLK_VALID      (1 << 17)

    Indent the macro value with tabs please.

WBR, Sergei