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

[Prabhakar Kushwaha]

> -----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?

--pk