[PATCH v1] arm: global_data: add scmi pointer

[Peng Fan]

> Subject: Re: [PATCH v1] arm: global_data: add scmi pointer
> 
> On Sun, Oct 06, 2024 at 05:52:28PM +0800, alice.guo at oss.nxp.com
> wrote:
> > From: Peng Fan <peng.fan at nxp.com>
> >
> > Add scmi device and channel pointer for i.MX9.
> >
> > Signed-off-by: Peng Fan <peng.fan at nxp.com>
> > Signed-off-by: Alice Guo <alice.guo at nxp.com>
> > Reviewed-by: Ye Li <ye.li at nxp.com>
> > ---
> >  arch/arm/include/asm/global_data.h | 3 +++
> >  1 file changed, 3 insertions(+)
> >
> > diff --git a/arch/arm/include/asm/global_data.h
> > b/arch/arm/include/asm/global_data.h
> > index 45401d5e3c..d04359f167 100644
> > --- a/arch/arm/include/asm/global_data.h
> > +++ b/arch/arm/include/asm/global_data.h
> > @@ -108,6 +108,9 @@ struct arch_global_data {  #ifdef
> CONFIG_SMBIOS
> >  	ulong smbios_start;		/* Start address of SMBIOS
> table */
> >  #endif
> > +#if defined(CONFIG_SCMI_FIRMWARE) && defined(CONFIG_IMX9)
> > +	struct udevice *scmi_dev;
> > +#endif
> >  };
> >
> >  #include <asm-generic/global_data.h>
> 
> But why is this only needed for i.MX9 families and not other users?

i.MX95 has some code that communicates with SCMI platform,
but no scmi driver for those code, saying rom pass info. So we need
a global scmi_dev.

Thanks,
Peng.

> 
> --
> Tom