[U-Boot] [linux-sunxi] Re: [PATCH v2 11/13] sunxi: introduce Allwinner H5 config option

[Icenowy Zheng]

2017年1月26日 18:45于 Maxime Ripard <maxime.ripard at free-electrons.com>写道：
>
> On Wed, Jan 25, 2017 at 02:22:45AM +0000, Andre Przywara wrote: 
> > The Allwinner H5 Soc is bascially an H3 with high SRAM and ARMv8 cores. 
> > As the peripherals and the pinmuxing are almost identical, we piggy 
> > back on the shared MACH_SUN8I_H3_H5 config symbol. 
> > 
> > Signed-off-by: Andre Przywara <andre.przywara at arm.com> 
> > --- 
> >  arch/arm/mach-sunxi/cpu_info.c |  2 ++ 
> >  board/sunxi/Kconfig            | 10 ++++++++++ 
> >  2 files changed, 12 insertions(+) 
> > 
> > diff --git a/arch/arm/mach-sunxi/cpu_info.c b/arch/arm/mach-sunxi/cpu_info.c 
> > index f1f6fd5..85633cc 100644 
> > --- a/arch/arm/mach-sunxi/cpu_info.c 
> > +++ b/arch/arm/mach-sunxi/cpu_info.c 
> > @@ -91,6 +91,8 @@ int print_cpuinfo(void) 
> >  puts("CPU:   Allwinner A80 (SUN9I)\n"); 
> >  #elif defined CONFIG_MACH_SUN50I 
> >  puts("CPU:   Allwinner A64 (SUN50I)\n"); 
> > +#elif defined CONFIG_MACH_SUN50I_H5 
> > + puts("CPU:   Allwinner H5 (SUN50I)\n"); 
> >  #else 
> >  #warning Please update cpu_info.c with correct CPU information 
> >  puts("CPU:   SUNXI Family\n"); 
> > diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig 
> > index a63e176..87ec77e 100644 
> > --- a/board/sunxi/Kconfig 
> > +++ b/board/sunxi/Kconfig 
> > @@ -56,6 +56,11 @@ config MACH_SUNXI_H3_H5 
> >  select SUNXI_GEN_SUN6I 
> >  select SUPPORT_SPL 
> >  
> > +config MACH_SUN50I_H5 
> > + bool 
> > + select SUNXI_HIGH_SRAM 
> > + select MACH_SUNXI_H3_H5 
> > + 
> >  choice 
> >  prompt "Sunxi SoC Variant" 
> >  optional 
> > @@ -143,6 +148,11 @@ config MACH_SUN50I 
> >  select SUNXI_HIGH_SRAM 
> >  select SUPPORT_SPL 
> >  
> > +config MACH_SUN50I_H5_64 
> > + bool "sun50i (Allwinner H5)" 
> > + select ARM64 
> > + select MACH_SUN50I_H5 
> > + 
>
> Why do we need two different MACH ? 

For adding 32-bit SPL or even fully 32-bit system options.

> Maxime 
>
> -- 
> Maxime Ripard, Free Electrons 
> Embedded Linux and Kernel engineering 
> http://free-electrons.com 
>
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