linux-kernel - Re: [PATCH] mmc: dw_mmc: add support for ARM64

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Date:	Tue, 9 Sep 2014 08:51:48 +0200
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Alim Akhtar <alim.akhtar@...sung.com>
Cc:	Chris Ball <chris@...ntf.net>,
	"tgih.jun@...sung.com" <tgih.jun@...sung.com>,
	Jaehoon Chung <jh80.chung@...sung.com>,
	Arnd Bergmann <arnd@...db.de>,
	Andrew Bresticker <abrestic@...omium.org>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Yuvaraj Kumar C D <yuvaraj.cd@...sung.com>
Subject: Re: [PATCH] mmc: dw_mmc: add support for ARM64

On 29 August 2014 12:24, Alim Akhtar <alim.akhtar@...sung.com> wrote:
> There are upcoming ARM64 SoCs with dw_mmc host controller.
>
> Signed-off-by: Alim Akhtar <alim.akhtar@...sung.com>
> ---
>  drivers/mmc/host/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
> index a43295c..72dd6c2 100644
> --- a/drivers/mmc/host/Kconfig
> +++ b/drivers/mmc/host/Kconfig
> @@ -580,7 +580,7 @@ config SDH_BFIN_MISSING_CMD_PULLUP_WORKAROUND
>  config MMC_DW
>         tristate "Synopsys DesignWare Memory Card Interface"
>         depends on HAS_DMA
> -       depends on ARC || ARM || MIPS || COMPILE_TEST
> +       depends on ARC || ARM || ARM64 || MIPS || COMPILE_TEST

Before enabling this, wouldn't it be better to add the needed support
in dw_mmc first? Or there are no changes needed?

There are also ongoing development and discussions for exynos7, which
I guess relates to this?
http://www.spinics.net/lists/linux-mmc/msg28294.html

Kind regards
Uffe
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