[PATCH v2] powerpc/usb: fix issue of CPU halt when missing USB PHY clock
Sergei Shtylyov
sshtylyov at mvista.com
Thu Feb 2 22:39:48 EST 2012
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<Shengzhou.Liu at freescale.com>
[...]
> 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
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