[U-Boot] [PATCH] L3 cache : arch : arm : lib : Flush L3 after relocation

[Meenakshi Aggarwal]

> -----Original Message-----
> From: Prabhakar Kushwaha
> Sent: Monday, February 18, 2019 6:37 PM
> To: Meenakshi Aggarwal <meenakshi.aggarwal at nxp.com>; u-
> boot at lists.denx.de; York Sun <york.sun at nxp.com>
> Cc: Meenakshi Aggarwal <meenakshi.aggarwal at nxp.com>; Udit Kumar
> <udit.kumar at nxp.com>
> Subject: RE: [PATCH] L3 cache : arch : arm : lib : Flush L3 after relocation
> 
> 
> > -----Original Message-----
> > From: Meenakshi Aggarwal <meenakshi.aggarwal at nxp.com>
> > Sent: Tuesday, February 19, 2019 12:09 AM
> > To: u-boot at lists.denx.de; Prabhakar Kushwaha
> > <prabhakar.kushwaha at nxp.com>; York Sun <york.sun at nxp.com>
> > Cc: Meenakshi Aggarwal <meenakshi.aggarwal at nxp.com>; Udit Kumar
> > <udit.kumar at nxp.com>
> > Subject: [PATCH] L3 cache : arch : arm : lib : Flush L3 after
> > relocation
> >
> > Flush L3 cache after uboot relocated to DDR.
> >
> > Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal at nxp.com>
> > Signed-off-by: Udit Kumar <udit.kumar at nxp.com>
> > ---
> >  arch/arm/lib/relocate_64.S | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/arm/lib/relocate_64.S b/arch/arm/lib/relocate_64.S
> > index
> > 171d094..7603f52 100644
> > --- a/arch/arm/lib/relocate_64.S
> > +++ b/arch/arm/lib/relocate_64.S
> > @@ -85,6 +85,7 @@ relocate_done:
> >  	isb	sy
> >  4:	ldp	x0, x1, [sp, #16]
> >  	bl	__asm_flush_dcache_range
> > +	bl     __asm_flush_l3_dcache
> 
> This change is happening for every arm platform.
> 
> There can be platform not having l3 cache. How It is taken care?
> 
This function is defined as weak in arch/arm/cpu/armv8/cache.S
for all other platforms except

arch/arm/mach-mvebu/armada8k/cache_llc.S
arch/arm/mach-tegra/tegra186/cache.S

> --pk