Hi Alison & Jason, Could you ACK this patch?
Regards, -Dongsheng > -----Original Message----- > From: Dongsheng Wang [mailto:dongsheng.w...@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@lists.denx.de; Wang Dongsheng-B40534 > Subject: [PATCH] arm/layerscape: Fix non-boot cpus cannot correctly fall in > spin > table > > From: Wang Dongsheng <dongsheng.w...@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.w...@freescale.com> > > diff --git a/arch/arm/cpu/armv7/ls102xa/cpu.c > b/arch/arm/cpu/armv7/ls102xa/cpu.c > index 75f0d8c..1f82893 100644 > --- a/arch/arm/cpu/armv7/ls102xa/cpu.c > +++ b/arch/arm/cpu/armv7/ls102xa/cpu.c > @@ -344,5 +344,13 @@ void smp_kick_all_cpus(void) > struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); > > out_be32(&gur->brrl, 0x2); > + > + /* > + * LS1 STANDBYWFE is not captured outside the ARM module in the soc. > + * So add a delay to wait bootrom execute WFE. > + */ > + udelay(1); > + > + asm volatile("sev"); > } > #endif > -- > 2.1.0.27.g96db324 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
