[U-Boot] [PATCH 4/6] net: phy: bugfixes: mv88E61xx multichip addressing support

Prafulla Wadaskar prafulla at marvell.com
Mon Aug 10 10:59:15 CEST 2009


 

> -----Original Message-----
> From: Wolfgang Denk [mailto:wd at denx.de] 
> Sent: Monday, August 10, 2009 1:56 PM
> To: Prafulla Wadaskar
> Cc: Manas Saksena; Ronen Shitrit; Nicolas Pitre; Ben Warren; 
> u-boot at lists.denx.de; Ashish Karkare; Prabhanjan Sarnaik; 
> Lennert Buijtenhek
> Subject: Re: [U-Boot] [PATCH 4/6] net: phy: bugfixes: 
> mv88E61xx multichip addressing support
> 
> Dear Prafulla Wadaskar,
> 
> In message 
> <1247758084-12296-4-git-send-email-prafulla at marvell.com> you wrote:
> > With these fixes, this driver works properly for multi chip 
> > addressging mode
> > 
> > Bugfixes:
> > 1. Build error fixed for function mv88e61xx_busychk_multic-fixed 2. 
> > PHY dev address error detection- fixed 3. wrong busy bit 
> was refered 
> > in function mv88e61xx_busychk -fixed 4. invalid data read ptr was 
> > refered for RD_PHY in case of
> > 	multichip addressing mode -fixed
> > 
> > The Multichip Address mode is tested with RD6281A board having
> > MV88E6165 switch on it
> > 
> > Signed-off-by: Prafulla Wadaskar <prafulla at marvell.com>
> > ---
> >  drivers/net/phy/mv88e61xx.c |   18 +++++++++---------
> >  drivers/net/phy/mv88e61xx.h |    2 +-
> >  2 files changed, 10 insertions(+), 10 deletions(-)
> 
> With ELDK 4.1 (gcc 4.0.0) I also get this compiler warning:
> 
> mv88e61xx.c: In function 'mv88e61xx_switch_initialize':
> mv88e61xx.c:346: warning: 'idstr' may be used uninitialized 
> in this function
> 
> when building for the mv88f6281gtw_ge board.
> 
> This looks reasonabme, as
> 
> 361         if (reg == 0x1610)
> 362                 idstr = "88E6161";
> 363         if (reg == 0x1650)
> 364                 idstr = "88E6165";
> 365         if (reg == 0x1210) {
> 366                 idstr = "88E6123";
> 367                 /* ports 2,3,4 not available */
> 368                 swconfig->ports_enabled &= 0x023;
> 369         }
> 
> may ideed leave "idstr" uninitialized; you may want to change 
> this into a switch() construct and add a default: case.
Thanks
Bugfix patch posted for this
Regards..
Prafulla . .

> 
> Best regards,
> 
> Wolfgang Denk
> 
> -- 
> DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: 
> wd at denx.de Always try to do things in chronological order; 
> it's  less  confusing that way.
> 


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