diff options
| author | Shengzhou Liu <Shengzhou.Liu@freescale.com> | 2012-02-16 18:02:20 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-24 13:37:45 -0800 |
| commit | 28c56ea1431421dec51b7b229369e991481453df (patch) | |
| tree | 1344d743b6afe3b375f6305a1c7ab339d4d57cf4 /drivers/usb/host/ehci-fsl.h | |
| parent | e90fc3cb087ce5c5f81e814358222cd6d197b5db (diff) | |
powerpc/usb: fix bug of kernel hang when initializing usb
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@freescale.com>
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ehci-fsl.h')
| -rw-r--r-- | drivers/usb/host/ehci-fsl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-fsl.h b/drivers/usb/host/ehci-fsl.h index 6d5a94e9bb3..863fb0c080d 100644 --- a/drivers/usb/host/ehci-fsl.h +++ b/drivers/usb/host/ehci-fsl.h @@ -47,6 +47,7 @@ #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) #define CTRL_PHY_CLK_VALID (1 << 17) #define SNOOP_SIZE_2GB 0x1e #endif /* _EHCI_FSL_H */ |