> -----Original Message----- > From: Stefano Babic [mailto:sba...@denx.de] > Sent: Tuesday, August 08, 2017 4:50 PM > To: Peng Fan <peng....@nxp.com>; sba...@denx.de > Cc: van.free...@gmail.com; u-boot@lists.denx.de; Fabio Estevam > <fabio.este...@nxp.com> > Subject: Re: [PATCH 1/3] ARM: i.MX6: exclude the ARM errata from i.MX6 UP > system > > Hi Peng, > > On 08/08/2017 07:34, Peng Fan wrote: > > The ARM errata 751472, 794072, 761320 only applied to the following > > configuration: > > > > This erratum affects configurations with either: > > - One processor if the ACP is present > > - Two or more processors > > > > Apart that I agree that such as work-around should be applied just to the > affected SOCs, which is the issues to apply them to the whole MX6 family ? > > For example, 751472 requires to set CP15 bit 11 with a specific sequence. > Right, > single core MX6 do not need it, but even if this is set in this way, is there > a side- > effect ? Just curious...
I have no idea about there is side effect if applying them to single core mx6. But we better apply them only affected SoCs. Regards, Peng. > > > i.MX6 family does not have the ACP and thus only the MPCore system > > will be impacted, which are the i.MX6DQ, i.MX6DL, and i.MX6QP. > > > > Signed-off-by: Peng Fan <peng....@nxp.com> > > Cc: Stefano Babic <sba...@denx.de> > > Cc: Fabio Estevam <fabio.este...@nxp.com> > > --- > > arch/arm/mach-imx/mx6/Kconfig | 15 +++++++++++---- > > 1 file changed, 11 insertions(+), 4 deletions(-) > > > > diff --git a/arch/arm/mach-imx/mx6/Kconfig > > b/arch/arm/mach-imx/mx6/Kconfig index bb2ce33..2be67e1 100644 > > --- a/arch/arm/mach-imx/mx6/Kconfig > > +++ b/arch/arm/mach-imx/mx6/Kconfig > > @@ -1,24 +1,31 @@ > > if ARCH_MX6 > > > > +config MX6_SMP > > + select ARM_ERRATA_751472 > > + select ARM_ERRATA_761320 > > + select ARM_ERRATA_794072 > > + bool > > + > > config MX6 > > + select ARM_ERRATA_743622 if !MX6UL > > bool > > default y > > - select ARM_ERRATA_743622 if !MX6UL > > - select ARM_ERRATA_751472 if !MX6UL > > - select ARM_ERRATA_761320 if !MX6UL > > - select ARM_ERRATA_794072 if !MX6UL > > imply CMD_FUSE > > > > config MX6D > > + select MX6_SMP > > bool > > > > config MX6DL > > + select MX6_SMP > > bool > > > > config MX6Q > > + select MX6_SMP > > bool > > > > config MX6QDL > > + select MX6_SMP > > bool > > > > config MX6S > > > > Best regards, > Stefano > > -- > ============================================================ > ========= > DENX Software Engineering GmbH, Managing Director: Wolfgang Denk > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sba...@denx.de > ============================================================ > ========= _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
