Re: [PATCH] powerpc/usb: fix bug of kernel hang when initializing usb

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Hello.

On 16-02-2012 14:02, Shengzhou Liu wrote:

If USB UTMI PHY is not enable, writing to portsc register will lead to
kernel hang during boot up.

Signed-off-by: Shengzhou Liu<Shengzhou.Liu@xxxxxxxxxxxxx>
[...]

diff --git a/drivers/usb/host/ehci-fsl.h b/drivers/usb/host/ehci-fsl.h
index bdf43e2..0e400c2 100644
--- a/drivers/usb/host/ehci-fsl.h
+++ b/drivers/usb/host/ehci-fsl.h
@@ -45,6 +45,7 @@
  #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_UTMI_PHY_EN	(1<<9)

   Please put spaces around << like below.

  #define CTRL_PHY_CLK_VALID	(1<<  17)
  #define SNOOP_SIZE_2GB		0x1e
  #endif				/* _EHCI_FSL_H */

WBR, Sergei
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