From: Sergei Shtylyov <sshtylyov@mvista.com>
To: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Cc: linux-usb@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH] powerpc/usb: fix bug of kernel hang when initializing usb
Date: Sat, 18 Feb 2012 19:39:05 +0400 [thread overview]
Message-ID: <4F3FC619.8050809@mvista.com> (raw)
In-Reply-To: <1329386540-12341-1-git-send-email-Shengzhou.Liu@freescale.com>
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@freescale.com>
[...]
> 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
prev parent reply other threads:[~2012-02-18 15:40 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-16 10:02 [PATCH] powerpc/usb: fix bug of kernel hang when initializing usb Shengzhou Liu
2012-02-16 10:39 ` Benjamin Herrenschmidt
2012-02-16 16:19 ` Greg KH
2012-02-16 22:58 ` Benjamin Herrenschmidt
2012-02-17 0:02 ` Benjamin Herrenschmidt
2012-02-17 2:32 ` Liu Shengzhou-B36685
2012-02-17 3:20 ` Pan Jiafei-B37022
2012-02-17 3:42 ` Benjamin Herrenschmidt
2012-02-17 3:46 ` Pan Jiafei-B37022
2012-02-17 3:54 ` Pan Jiafei-B37022
2012-02-18 15:39 ` Sergei Shtylyov [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4F3FC619.8050809@mvista.com \
--to=sshtylyov@mvista.com \
--cc=Shengzhou.Liu@freescale.com \
--cc=linux-usb@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).