linux-kernel - Re: [PATCH v4 47/47] soc: fsl: qe: remove PPC32 dependency from CONFIG_QUICC

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Date:   Fri, 8 Nov 2019 17:48:43 -0600
From:   Li Yang <leoyang.li@....com>
To:     Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:     Qiang Zhao <qiang.zhao@....com>,
        Christophe Leroy <christophe.leroy@....fr>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Scott Wood <oss@...error.net>
Subject: Re: [PATCH v4 47/47] soc: fsl: qe: remove PPC32 dependency from CONFIG_QUICC_ENGINE

On Fri, Nov 8, 2019 at 7:05 AM Rasmus Villemoes
<linux@...musvillemoes.dk> wrote:
>
> There are also ARM and ARM64 based SOCs with a QUICC Engine, and the
> core QE code as well as net/wan/fsl_ucc_hdlc and tty/serial/ucc_uart
> has now been modified to not rely on ppcisms.
>
> So extend the architectures that can select QUICC_ENGINE, and add the
> rather modest requirements of OF && HAS_IOMEM.
>
> The core code as well as the ucc_uart driver has been tested on an
> LS1021A (arm), and it has also been tested that the QE code still
> works on an mpc8309 (ppc).
>
> Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
> ---
>  drivers/soc/fsl/qe/Kconfig | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/soc/fsl/qe/Kconfig b/drivers/soc/fsl/qe/Kconfig
> index cfa4b2939992..f1974f811572 100644
> --- a/drivers/soc/fsl/qe/Kconfig
> +++ b/drivers/soc/fsl/qe/Kconfig
> @@ -5,7 +5,8 @@
>
>  config QUICC_ENGINE
>         bool "QUICC Engine (QE) framework support"
> -       depends on FSL_SOC && PPC32
> +       depends on OF && HAS_IOMEM
> +       depends on PPC32 || ARM || ARM64 || COMPILE_TEST

Can you also add PPC64?  It is also used on some PPC64 platforms
(QorIQ T series).

>         select GENERIC_ALLOCATOR
>         select CRC32
>         help
> --
> 2.23.0
>