[U-Boot] [PATCH] arm/layerscape: Fix non-boot cpus cannot correctly fall in spin table

Wang Dongsheng Dongsheng.Wang at freescale.com
Thu Jul 16 04:22:05 CEST 2015



> -----Original Message-----
> From: Sun York-R58495
> Sent: Thursday, July 16, 2015 2:06 AM
> To: Wang Dongsheng-B40534
> Cc: Jin Zhengxiong-R64188; Wang Huan-B18965; Zhao Chenhui-B35336; Zhang Zhuoyu-
> B46552; u-boot at lists.denx.de
> Subject: Re: [PATCH] arm/layerscape: Fix non-boot cpus cannot correctly fall in
> spin table
> 
> On 07/14/2015 12:09 AM, Wang Dongsheng-B40534 wrote:
> > Hi Alison & Jason,
> >
> > Could you ACK this patch?
> >
> > Regards,
> > -Dongsheng
> >
> >> -----Original Message-----
> >> From: Dongsheng Wang [mailto:dongsheng.wang at freescale.com]
> >> Sent: Thursday, June 18, 2015 6:33 PM
> >> To: Sun York-R58495
> >> Cc: Jin Zhengxiong-R64188; Wang Huan-B18965; Zhao Chenhui-B35336;
> >> Zhang Zhuoyu- B46552; u-boot at lists.denx.de; Wang Dongsheng-B40534
> >> Subject: [PATCH] arm/layerscape: Fix non-boot cpus cannot correctly
> >> fall in spin table
> >>
> >> From: Wang Dongsheng <dongsheng.wang at freescale.com>
> >>
> >> Bootrom will put cpus into WFE state when boot cpu release cpus, so
> >> target cpu cannot correctly go to spin state.
> >>
> >> Add 'sev' to wakeup non-boot cpu that hold on bootrom space, let
> >> target cpu can fall into u-boot spin table.
> >>
> >> Signed-off-by: Wang Dongsheng <dongsheng.wang at freescale.com>
> 
> Dongsheng,
> 
> Do we still use spin table if we have PSCI?
> 
For ARMv7 we would like to use PSCI, just compatible with spin table.

Regards,
-Dongsheng


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