[U-Boot] [PATCH] powerpc/usb: fix bug of CPU halt when missing USB PHY clock

[Marek Vasut <marex@denx.de>]

Dear Andy Fleming,

> Pinging you on this, again. Also, I've now moved the patch to Marek's
> queue, instead of mine.

Thanks! Did the FSL silicon team respond already?

> 
> On Sun, Feb 26, 2012 at 8:44 PM, Liu Shengzhou-B36685
> 
> <B36685@freescale.com> wrote:
> >> -----Original Message-----
> >> From: Marek Vasut [mailto:marex at denx.de]
> >> Sent: Monday, February 27, 2012 7:13 AM
> >> To: u-boot at lists.denx.de
> >> Cc: Liu Shengzhou-B36685
> >> Subject: Re: [U-Boot] [PATCH] powerpc/usb: fix bug of CPU halt when
> >> missing USB PHY clock
> >> 
> >> > when missing USB PHY clock and issuing "usb start" at u-boot prompt,
> >> > writing to or_portsc register will cause CPU halt. We should check
> >> > USBGP[PHY_CLK_VALID] bit at the first time in ehci_hcd_init() to
> >> 
> >> avoid
> >> 
> >> > CPU hang in this case.
> >> > 
> >> > Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
> >> > ---
> >> >  drivers/usb/host/ehci-fsl.c |   22 +++++++++++++++++++---
> >> >  1 files changed, 19 insertions(+), 3 deletions(-)
> >> 
> >> Hi,
> >> 
> >> what's the status of this patch/patchset?
> >> 
> >> Thanks
> >> M
> > 
> > Currently we found that usb CTRL_PHY_CLK_VALID bit breaks on P1022
> > platform, which not contains this bit. - P1023/P3041/P5020 etc, have
> > this bit
> >  - P3060/4080/PSC913x do have this bit, but not mentioned in RM.
> >  - P1022(perhaps and other) has no this bit
> > I'm waiting for the response from FSL silicon team to confirm whether
> > there is other platform not including this bit or not, so this patch
> > maybe have to be pending until I get confirmation.
> > 
> > Thanks,
> > Shengzhou
> > 
> > 
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> > http://lists.denx.de/mailman/listinfo/u-boot

Best regards,
Marek Vasut